WO2002000286A1 - Reusable catheter - Google Patents

Reusable catheter Download PDF

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Publication number
WO2002000286A1
WO2002000286A1 PCT/FR2001/002006 FR0102006W WO0200286A1 WO 2002000286 A1 WO2002000286 A1 WO 2002000286A1 FR 0102006 W FR0102006 W FR 0102006W WO 0200286 A1 WO0200286 A1 WO 0200286A1
Authority
WO
WIPO (PCT)
Prior art keywords
cylindrical body
reusable catheter
catheter according
reusable
shoulder
Prior art date
Application number
PCT/FR2001/002006
Other languages
French (fr)
Inventor
Thierry Loubens
Lionel Riou
Antoine Watrelot
Original Assignee
Soprane Sa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Soprane Sa filed Critical Soprane Sa
Priority to AU70655/01A priority Critical patent/AU7065501A/en
Publication of WO2002000286A1 publication Critical patent/WO2002000286A1/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06Body-piercing guide needles or the like
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3417Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3417Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B17/3421Cannulas
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/02Holding devices, e.g. on the body
    • A61M25/04Holding devices, e.g. on the body in the body, e.g. expansible
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831Material properties
    • A61B2017/00867Material properties shape memory effect
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28Surgical forceps
    • A61B17/29Forceps for use in minimally invasive surgery
    • A61B2017/2901Details of shaft
    • A61B2017/2905Details of shaft flexible
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34Trocars; Puncturing needles
    • A61B2017/348Means for supporting the trocar against the body or retaining the trocar inside the body
    • A61B2017/3482Means for supporting the trocar against the body or retaining the trocar inside the body inside
    • A61B2017/3484Anchoring means, e.g. spreading-out umbrella-like structure
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters

Definitions

  • the present invention relates to a reusable catheter, that is to say that it can be sterilized after each surgical operation for a new use.
  • reusable catheter By reusable catheter is meant a catheter / trocar having the function of a tool for perforating the walls and the function of a catheter for the introduction into the operating site, either of liquid products, or a range of surgical or other mandrels. instruments, or both at the same time.
  • At least one of the channels feeds at the end opposite to that carrying the connection means, a balloon capable of deforming elastically under the effect of pressure, while the other channels allow the introduction, either liquids, a range of surgical mandrels and / or other instruments, or both at the same time at the different operating sites.
  • this kind of catheters is made of plastic materials which cannot withstand the sterilization temperatures which are around 130 degrees.
  • the purpose of the reusable catheter according to the present invention is to be able to resist sterilization temperatures while retaining all the characteristics of plastic catheters, connection means, internal channels, retaining and sealing means.
  • the reusable catheter according to the present invention is intended for the field of treatments and diagnoses of infertility by transvaginal route.
  • the reusable catheter comprises a cylindrical body provided with connection means, gripping means, at least one internal channel connected to the connection means, retaining means deformed by the sliding of a surgical mandrel, and to the opposite connection means an internal chamber intended to receive guide means connected to said body by retaining means which are constituted by an expandable ring divided in its central part and in a longitudinal direction by several parallel slots forming thin strips making it possible to constitute around the cylindrical body a collar forming a support base when the reusable catheter is introduced inside the operating site.
  • the reusable catheter according to the present invention comprises guide means which consist of a cylindrical sleeve comprising at least one internal bore arranged in the extension of the channel of the cylindrical body, an elongated and cylindrical portion sliding inside the chamber and a shoulder having an external diameter which is identical to that of the external cylindrical body in order to receive the retaining means.
  • the reusable catheter according to the present invention comprises an internal bore which has, on the one hand a first internal diameter (d1) slightly greater than that external of a stop integral with the surgical mandrel, and on the other hand a second internal diameter (d2 , formed mainly in the shoulder which is of smaller diameter than that (d1) in order to constitute an internal shoulder (e1).
  • the reusable catheter according to the present invention comprises retaining means which consist of an expandable ring of small thickness produced from a hyper-elastic tube of Ni-Ti type alloy.
  • the reusable catheter according to the present invention comprises an expandable ring which is divided in its central part and in a longitudinal direction by several parallel slots forming thin strips which are educated by heat treatment.
  • the reusable catheter according to the present invention comprises lamellae which are delimited in length at each end of the expandable ring by cylindrical portions fixed respectively on the cylindrical body and on the shoulder of the cylindrical sleeve.
  • the reusable catheter according to the present invention comprises an expandable ring which is naturally in the deformed position so that the lamellae constitute around the cylindrical body a collar.
  • the reusable catheter according to the present invention comprises a surgical mandrel which consists of a metal rod comprising at one of its ends a head, and near the other end with a tapered profile a cylindrical stop.
  • the reusable catheter according to the present invention comprises a surgical mandrel which consists of a metal rod having at one of its ends a head, and near the other end with a hemispherical profile a cylindrical stop.
  • the reusable catheter according to the present invention comprises a cylindrical body which is produced in a rigid stainless metal tube.
  • the reusable catheter according to the present invention comprises a cylindrical body which consists of a flexible tube made of a plastic material around which is provided a deformable metal frame.
  • the reusable catheter according to the present invention comprises a cylindrical body which comprises, close to the gripping means, a shoulder with a conical profile whose narrower base is turned towards the side of said gripping means.
  • the reusable catheter according to the present invention comprises a conical shoulder, the narrower base of which has an external diameter identical to that of the cylindrical body, while the widest base of the cone has a diameter greater than that of said cylindrical body.
  • the reusable catheter according to the present invention comprises a cylindrical body which is introduced into an elastic sleeve to make the ring expandable of the retaining means, sealed.
  • the reusable catheter according to the present invention comprises an elastic sleeve which is composed of a thin tube made of a material such as silicone or latex or any other similar material.
  • the reusable catheter according to the present invention comprises a tube which has a first non-deformable open end and whose internal diameter corresponds to that of the outer shoulder of the sleeve to come into abutment against it, and a second open end provided with a slightly deformable bead making it possible to immobilize the elastic sleeve in the stretched position on the cylindrical body, at the level of the conical shoulder, by means of a split ring with a complementary profile.
  • Figure 1 is a view illustrating the reusable catheter according to the present invention.
  • Figures 2 and 3 are views showing in detail the guide and retaining means in the retracted position in order to form a peripheral flange around the end of the reusable catheter according to the present invention.
  • Figure 4 is a view showing the surgical mandrel for actuating the guide means of the reusable catheter according to the present invention.
  • Figure 5 is a view illustrating in detail the guide means and retaining in the extended position during the introduction of the surgical mandrel inside the reusable catheter according to the present invention.
  • Figures 6a to 6d are schematic views showing the different steps to perform for the introduction of the reusable catheter inside the operating site.
  • Figure 7 is a view showing a variant of the reusable catheter so that the latter has a flexible cylindrical body.
  • Figures 8 and 9 are views showing in detail the guide and retaining means in the retracted position in order to form a peripheral flange around the end of the flexible reusable catheter according to the present invention.
  • Figure 10 is a view illustrating another surgical mandrel for actuating the guide means of the flexible reusable catheter according to the present invention.
  • Figure 11 is a view showing in detail the guide and retaining means in the extended position during the introduction of the surgical mandrel inside the flexible reusable catheter according to the present invention.
  • Figures 12a to 12d are schematic views showing the different steps to perform for the introduction of the flexible reusable catheter inside the operating site.
  • Figures 13 to 18 are views illustrating the establishment and fixing of an elastically deformable tube around the reusable catheter in order to constitute sealing means around the retaining means.
  • FIGS. 1 to 5 show a reusable catheter 1 made up of a cylindrical body 2 produced in a tube made of stainless metallic material.
  • the cylindrical body 2 comprises at one of its ends connection means 3 which are arranged near a head 4 forming the means for gripping the reusable catheter 1 by the surgeon.
  • connection means 3 consist of tubes 5 and 6 forming inlets which communicate respectively with non-coaxial channels 7 and 8 drilled in the internal part of the head 4 and of the cylindrical body 2.
  • the tube 5 is provided in the extension of the cylindrical body 2 and allows the introduction into the main channel 8 of a surgical mandrel 9 or optics not shown.
  • the tube 6 opens into the secondary channel 7 at a certain inclination relative to the longitudinal axis XX 'of the cylindrical body 2 of about 15 degrees largely shelved to allow the passage of semi-rigid instruments or a fluid.
  • the tube 6 comprises a closing and opening device 10, for example a metal one-way LUER type valve.
  • the surgical mandrel 9 consists of a metal rod 11 having at one of its ends a head 31, while the opposite end 12 has a tapered and pointed profile.
  • the rod 11 comprises near the tapered end 12 a cylindrical stop 13 whose external diameter is greater than that of the rod and the tapered end.
  • the cylindrical body 2 comprises, opposite the connection 3 and gripping means 4, an internal chamber 14 with a cylindrical profile into which the non-coaxial channels 7 and 8 open, and slide along the longitudinal axis XX 'of the means of guide 15 allowing the deformation of retaining means 16.
  • the guide means 15 consist of a cylindrical sleeve 17 comprising in its internal part two non-coaxial through bores 18 and 19 which are disposed respectively in the extension of the channels 7 and 8 of the cylindrical body 2,
  • the cylindrical sleeve 17 has an elongated and cylindrical portion 20 which slides inside the chamber 14 of the cylindrical body 2, and a shoulder 21 having an external diameter greater than that of the elongated portion 20.
  • the shoulder 21 of the sleeve 17 has an external diameter which is identical to that of the cylindrical body 2 in order to receive the retaining means 16.
  • the shoulder 21 of the sleeve 17 has, over a portion of its diameter, an inclined face 22 whose angle of inclination is identical to that of the tapered end 12 of the surgical mandrel 9.
  • the bore 19 of the sleeve 17 has, on the one hand a first internal diameter d1 slightly greater than that external of the stop 13 of the surgical mandrel 9, and on the other hand a second internal diameter d2 with a three-lobed profile, formed mainly in the 'shoulder 21 which is of diameter smaller than that d1, in order to constitute an internal shoulder e1.
  • the internal diameter d2 is slightly greater than that of the tapered end 12 of the surgical mandrel 9.
  • the three-lobed profile of the bore 19 at its diameter d2 allows the centering of an optic inside the reusable catheter 1 while allowing the flow of a fluid on the periphery of said optic.
  • the internal shoulder e1 makes it possible to block longitudinally along the axis XX 'of the cylindrical body 2 the movement stroke of the surgical mandrel 9 when the stop 13 comes into contact with said internal shoulder e1.
  • the retaining means 16 consist of an expandable ring 23 of small thickness made from a hyper-elastic tube of Ni-Ti type alloy.
  • the expandable ring 23 is divided in its central part, and in a longitudinal direction, by several parallel slots 24 forming thin strips 25 which are educated by heat treatment.
  • the lamellae 25 are delimited in length at each end of the expandable ring 23 by cylindrical portions 26 and 27.
  • the ring 23 naturally in the deformed position, opens and closes by exerting traction at its ends.
  • the deformed position of the strips 25 makes it possible to constitute, around the cylindrical body 2, a flange 28 forming a support base when the reusable catheter 1 is introduced inside the operating site.
  • the expandable ring 23 makes it possible to connect the guide means 15 to the cylindrical body 2 of the reusable catheter 1.
  • the cylindrical portion 26 of the ring 23 is fixed to the external diameter of the cylindrical body 2, while the portion 27 is fixed to the external diameter of the shoulder 21 of the sleeve 17.
  • the reusable catheter 1 In the rest position, the reusable catheter 1 has deformed retaining means 16, so that the strips 25 affect the flanged profile 28 around the cylindrical body 2 (FIG. 6a).
  • the surgeon must first introduce the surgical mandrel 9 inside the channel 8 and the bore 19, until the stop 13 comes to bear against the shoulder e1 of the bore 19 (FIG. 5).
  • the surgeon pushes the surgical mandrel 9 in order to move my guide means 15, and more particularly the cylindrical sleeve 17 in a longitudinal direction carried by the axis XX 'of the body 2 (FIG. 6b).
  • the displacement of the cylindrical sleeve 17 makes it possible to lengthen the lamellae 25 of the expandable ring 23 in a direction substantially parallel to the axis XX ' the cylindrical body 2 to get as close as possible to the external diameter of said body ( Figure 6b).
  • the surgeon locks the surgical mandrel 9 inside the cylindrical body 2 to immobilize the expandable ring 23 in the extended position so as to be able to introduce the reusable catheter 1 into the operating site.
  • the locking of the surgical mandrel 9 in the cylindrical body 2 is obtained by a bayonet type system not shown.
  • the introduction of the reusable catheter 1 into the operating site is facilitated by the tapered profile 12 of the mandrel 9 which opens out to the outside of the cylindrical body 2 to allow the perforation of the patient's tissues.
  • the surgeon positions the reusable catheter 1 so that the expandable ring 23 is placed inside the operating site.
  • the surgeon can then use the reusable catheter 1 to carry out his various tests or operations.
  • FIGS. 7 to 11 a variant of the reusable catheter 1 described above has been shown with regard more particularly to the production of the cylindrical body 2.
  • the latter consists of a flexible tube 29 made of a plastic material such as PTFE or the like, around which is provided a deformable metal frame 30.
  • the cylindrical body 2 comprises at one of its ends the connection means 3 which are arranged near the head 4 forming the means for gripping the reusable catheter 1 by the surgeon.
  • connection means 3 consist of tubes 5 and 6 forming inlets which communicate with a single main channel 8 pierced in the internal part of the head 4 and of the cylindrical body 2.
  • the tube 5 is provided in the extension of the cylindrical body 2 and allows the introduction into the main channel 8, of a surgical mandrel 9 or an optic not shown.
  • the tube 6 opens into the main channel 8 at a certain inclination relative to the longitudinal axis XX 'of the cylindrical body 2 of about 15 degrees largely radiated to allow the passage of semi-rigid instruments or a fluid.
  • the tube 6 comprises a closing and opening device 10, for example a metal one-way LUER type valve.
  • the surgical mandrel 9 consists of a metal rod 11 comprising at one of its ends a head 31, while the opposite end has a hemispherical profile 32.
  • the rod 11 comprises, near the hemispherical end 32, a cylindrical stop 13 whose external diameter is greater than that of the rod and of the hemispherical end.
  • the cylindrical body 2 comprises, opposite the connection 3 and gripping means 4, an internal chamber 14 with a cylindrical profile into which the main channel 8 opens and slide, along the longitudinal axis XX ′, the guide means 15 allowing the deformation of the retaining means 16.
  • the guide means 15 consist of a cylindrical sleeve 17 comprising in its internal part a through bore 19, which is arranged in the extension of the main channel 8 of the cylindrical body 2.
  • the cylindrical sleeve 17 comprises an elongated and cylindrical portion 20 which slides inside the chamber 14 of the cylindrical body 2, and a shoulder 21 having an external diameter greater than that of the elongated portion 20.
  • the shoulder 21 of the sleeve 17 has an external diameter which is identical to that of the cylindrical body 2 in order to receive the retaining means 16.
  • the shoulder 21 has a cylindrical portion 35 of smaller diameter located in the extension of the cylindrical body 2.
  • the bore 19 of the sleeve 17 has, on the one hand a first internal diameter d1 slightly greater than that external of the stop 13 of the surgical mandrel 9, and on the other hand a second internal diameter d2 with a three-lobed profile, formed mainly in the 'shoulder 21, which is of smaller diameter than that d1, in order to constitute an internal shoulder e1.
  • the internal diameter d2 is slightly greater than that of the hemispherical end 32 of the surgical mandrel 9.
  • the three-lobed profile of the bore 19 at its diameter d2 allows the centering of an optic inside the reusable catheter 1, while allowing the flow of a fluid on the periphery of said optic.
  • the internal shoulder e1 makes it possible to block longitudinally along the axis XX 'of the cylindrical body 2, the movement stroke of the surgical mandrel 9 when the stop 13 comes into contact with said internal shoulder e.
  • the retaining means 16 consist of an expandable ring 23 of small thickness produced from a hyper-elastic tube of Ni-Ti type alloy.
  • the expandable ring 23 is divided in its central part and in a longitudinal direction by several parallel slots 24, forming thin strips 25 which are educated by heat treatment.
  • the lamellae 25 are delimited in length, at each end of the expandable ring 23, by cylindrical portions 26 and 27.
  • the ring 23 naturally in the deformed position, opens and closes by exerting traction at its ends.
  • the deformed position of the strips 25 makes it possible to constitute around the cylindrical body 2 a flange 28 forming a support base when the reusable catheter 1 is introduced inside the operating site.
  • the expandable ring 23 makes it possible to connect the guide means 15 to the cylindrical body 2 of the reusable catheter 1.
  • the cylindrical portion 26 of the ring 23 is fixed to the external diameter of the cylindrical body 2, while the portion 27 is fixed to the external diameter of the shoulder 21 of the sleeve 17.
  • FIGs 12a to 12d there is shown the different stages of use of the reusable catheter 1 described in Figures 7 to 11 for its introduction inside the operating site.
  • the reusable catheter 1 In the rest position, the reusable catheter 1 has retaining means 16 deformed so that the strips 25 affect the flanged profile 28 around the cylindrical body 2 (FIG. 12a).
  • the surgeon pushes the surgical mandrel 9 in order to move the guide means 15, and more particularly the cylindrical sleeve 17, in a longitudinal direction carried by the axis XX 'of the body 2 (FIG. 12b).
  • the displacement of the cylindrical sleeve 17 makes it possible to lengthen the lamellae 25 of the expandable ring 23, in a direction substantially parallel to the axis XX ' of the cylindrical body 2 to get as close as possible to the external diameter of said body ( Figure 12b).
  • the surgeon locks the surgical mandrel 9 inside the cylindrical body 2 to immobilize the expandable ring 23 in the extended position, so as to be able to introduce the reusable catheter 1 into the operating site.
  • the locking of the surgical mandrel 9 in the cylindrical body 2 is obtained by a bayonet type system not shown.
  • the surgeon positions the reusable catheter 1 so that the expandable ring 23 is placed inside the operating site.
  • the surgeon can then use the reusable catheter 1 to carry out his various tests or operations.
  • cylindrical body 2 of the reusable catheter 1 can deform according to the wishes of the surgeon during his operations (FIG. 12d).
  • the elastic sleeve 33 comprises a thin tube 34 open at each end and made of a material such as silicone or latex or any other similar material.
  • the tube 34 has a first open end 36 which is non-deformable and whose internal diameter corresponds to that of the external portion 35 of the shoulder 21 to abut against it.
  • the tube 34 has a second open end 37 provided with a slightly deformable bead 38, making it possible to immobilize the elastic sleeve 33 in the stretched position on the cylindrical body 2 of the reusable catheter 1.
  • the cylindrical body 2 comprises, near the gripping means 4, a shoulder 39 with a conical profile, the narrower base of which is turned towards the side of said gripping means.
  • the narrower base of the conical shoulder 39 has an external diameter identical to that of the cylindrical body 2 while the wider base of the cone has a diameter greater than that of said cylindrical body.
  • the elastic sleeve 33 is fixed when the retaining means 16, and more particularly the expandable ring 23, are arranged in an elongated direction, that is to say when the lamellae 25 are placed in a direction substantially parallel to that of the 'axis XX' of the cylindrical body 2.
  • the surgeon can cover the cylindrical body 2 of the reusable catheter 1 of the elastic sleeve 33.
  • the establishment of the elastic sleeve 33 is performed when the open end 37 of the tube 34 is threaded over the conical shoulder 39 so that the bead 38 is placed on the cylindrical body 2, between the gripping means 4 and the tapered shoulder 38.
  • a fixing ring 40 is placed around the elastic sleeve 33 at its open end 37, in order to block the latter on the conical shoulder 39.
  • the ring 40 has a slot 41 which opens into a central bore 42, provided with an internal bearing 43 with a conical profile.
  • the ring 40 is arranged so that the conical surface 43 of the bore 42 comes to bear against the conical shoulder 39 in order to block the elastic sleeve 33, around the cylindrical body 2 of the reusable catheter 2.
  • the elastic sleeve 33 deforms as soon as the retaining means 16 have a flanged profile 28, so that the latter have sealing characteristics when they are introduced into the operating site.

Abstract

The invention concerns a reusable catheter for transvaginal treatment and diagnosis of infertility comprising a cylindrical body (2) provided with connecting means (3), grip means (4), at least an internal passage (7, 8) connected to the connection means (3), retaining means (16) deformed by sliding a surgical needle sleeve (9), and opposite the connection means (3) an internal chamber (14) designed to receive guide means (15) linked to said body by retaining means (16) which consist of an expansible ring (23) divided in its central part by several parallel slots (24) forming fine strips (25) constituting around the cylindrical body (2) a collar (28) forming a support base when the reusable catheter (1) is inserted into the operative site.

Description

CATHETER REUTILISABLE REUSABLE CATHETER
La présente invention est relative à un cathéter réutilisable, c'est à dire qu'il peut être stérilisé après chaque opération chirurgicale en vue d'une nouvelle utilisation.The present invention relates to a reusable catheter, that is to say that it can be sterilized after each surgical operation for a new use.
On entend par cathéter réutilisable un cathéter/trocart ayant la fonction d'un outil pour la perforation des parois et la fonction d'un cathéter pour l'introduction dans le site opératoire, soit de produits liquides, soit une gamme de mandrins chirurgicaux ou autres instruments, soit les deux en même temps.By reusable catheter is meant a catheter / trocar having the function of a tool for perforating the walls and the function of a catheter for the introduction into the operating site, either of liquid products, or a range of surgical or other mandrels. instruments, or both at the same time.
On connaît d'après le brevet français FR 97 13988 appartenant au demandeur, un cathéter universel à usage unique qui comporte un corps cylindrique de faible diamètre pourvu à l'une de ses extrémités de moyens de connexion qui communiquent avec des canaux non coaxiaux ménagés dans la partie interne dudit corps cylindrique.We know from French patent FR 97 13988 belonging to the applicant, a universal disposable catheter which comprises a cylindrical body of small diameter provided at one of its ends with connection means which communicate with non-coaxial channels formed in the internal part of said cylindrical body.
On constate que l'un au moins des canaux alimente à l'extrémité opposée à celle portant les moyens de connexion, un ballonnet susceptible de se déformer élastiquement sous l'effet d'une pression, tandis que les autres canaux permettent l'introduction, soit de liquides, soit d'une gamme de mandrins chirurgicaux et/ou autres instruments, soit les deux en même temps au niveau des différents sites opératoires.It can be seen that at least one of the channels feeds at the end opposite to that carrying the connection means, a balloon capable of deforming elastically under the effect of pressure, while the other channels allow the introduction, either liquids, a range of surgical mandrels and / or other instruments, or both at the same time at the different operating sites.
On note que ce genre de cathéters est réalisé dans des matériaux plastiques qui ne peuvent résister aux températures de stérilisation qui avoisinent les 130 degrés.It is noted that this kind of catheters is made of plastic materials which cannot withstand the sterilization temperatures which are around 130 degrees.
C'est à ces inconvénients qu'entend plus particulièrement remédier la présente invention.It is these drawbacks that the present invention intends to remedy more particularly.
Le cathéter réutilisable suivant la présente invention a pour objet de pouvoir résister aux températures de stérilisation en gardant toutes les caractéristiques des cathéters en matière plastique, moyen de connexion, canaux interne, moyen de retenue et d'étanchéîté.The purpose of the reusable catheter according to the present invention is to be able to resist sterilization temperatures while retaining all the characteristics of plastic catheters, connection means, internal channels, retaining and sealing means.
Le cathéter réutilisable suivant la présente invention est destiné au domaine des traitements et diagnostics de l'infertilité par voie transvaginale.The reusable catheter according to the present invention is intended for the field of treatments and diagnoses of infertility by transvaginal route.
Le cathéter réutilisable suivant la présente invention comporte un corps cylindrique pourvu de moyens de connexion, de moyens de préhension, au moins un canal interne relié aux moyens de connexion, des moyens de retenue déformés par le coulissement d'un mandrin chirurgical, et à l'opposé des moyens de connexion une chambre interne destinée à recevoir des moyens de guidage reliés audit corps par des moyens de retenue qui sont constitués par une bague expansible divisée dans sa partie centrale et suivant une direction longitudinale par plusieurs fentes parallèles formant de fines lamelles permettant de constituer autour du corps cylindrique une collerette formant une base d'appui lorsque le cathéter réutilisable est introduit à l'intérieur du site opératoire.The reusable catheter according to the present invention comprises a cylindrical body provided with connection means, gripping means, at least one internal channel connected to the connection means, retaining means deformed by the sliding of a surgical mandrel, and to the opposite connection means an internal chamber intended to receive guide means connected to said body by retaining means which are constituted by an expandable ring divided in its central part and in a longitudinal direction by several parallel slots forming thin strips making it possible to constitute around the cylindrical body a collar forming a support base when the reusable catheter is introduced inside the operating site.
Le cathéter réutilisable suivant la présente invention comporte des moyens de guidage qui sont constitués d'un manchon cylindrique comprenant au moins un alésage interne disposé dans le prolongement du canal du corps cylindrique, une portion allongée et cylindrique coulissant à l'intérieur de la chambre et un épaulement présentant un diamètre externe qui est identique à celui externe du corps cylindrique afin de recevoir les moyens de retenue.The reusable catheter according to the present invention comprises guide means which consist of a cylindrical sleeve comprising at least one internal bore arranged in the extension of the channel of the cylindrical body, an elongated and cylindrical portion sliding inside the chamber and a shoulder having an external diameter which is identical to that of the external cylindrical body in order to receive the retaining means.
Le cathéter réutilisable suivant la présente invention comporte un alésage interne qui présente, d'une part un premier diamètre interne (d1) légèrement supérieur à celui externe d'une butée solidaire du mandrin chirurgical, et d'autre part un second diamètre interne (d2, ménagé principalement dans l'épaulement qui est de diamètre inférieur à celui (d1) afin de constituer un épaulement interne (e1).The reusable catheter according to the present invention comprises an internal bore which has, on the one hand a first internal diameter (d1) slightly greater than that external of a stop integral with the surgical mandrel, and on the other hand a second internal diameter (d2 , formed mainly in the shoulder which is of smaller diameter than that (d1) in order to constitute an internal shoulder (e1).
Le cathéter réutilisable suivant la présente invention comporte des moyens de retenue qui sont constitués d'une bague expansible de faible épaisseur réalisée à partir d'un tube hyper élastique en alliage de type Ni-Ti.The reusable catheter according to the present invention comprises retaining means which consist of an expandable ring of small thickness produced from a hyper-elastic tube of Ni-Ti type alloy.
Le cathéter réutilisable suivant la présente invention comporte une bague expansible qui est divisée dans sa partie centrale et suivant une direction longitudinale par plusieurs fentes parallèles formant de fines lamelles qui sont éduquées par traitement thermique.The reusable catheter according to the present invention comprises an expandable ring which is divided in its central part and in a longitudinal direction by several parallel slots forming thin strips which are educated by heat treatment.
Le cathéter réutilisable suivant la présente invention comporte des lamelles qui sont délimitées en longueur à chaque extrémité de la bague expansible par des portions cylindriques fixées respectivement sur le corps cylindrique et sur l'épaulement du manchon cylindrique.The reusable catheter according to the present invention comprises lamellae which are delimited in length at each end of the expandable ring by cylindrical portions fixed respectively on the cylindrical body and on the shoulder of the cylindrical sleeve.
Le cathéter réutilisable suivant la présente invention comporte une bague expansible qui est naturellement en position déformée afin que les lamelles constituent autour du corps cylindrique une collerette.The reusable catheter according to the present invention comprises an expandable ring which is naturally in the deformed position so that the lamellae constitute around the cylindrical body a collar.
Le cathéter réutilisable suivant la présente invention comporte un mandrin chirurgical qui est constitué d'une tige métallique comprenant à l'une de ses extrémités une tête, et à proximité de l'autre extrémité à profil effilé une butée cylindrique.The reusable catheter according to the present invention comprises a surgical mandrel which consists of a metal rod comprising at one of its ends a head, and near the other end with a tapered profile a cylindrical stop.
Le cathéter réutilisable suivant la présente invention comporte un mandrin chirurgical qui est constitué d'une tige métallique comportant à l'une de ses extrémités une tête, et à proximité de l'autre extrémité à profil en demi-sphère une butée cylindrique.The reusable catheter according to the present invention comprises a surgical mandrel which consists of a metal rod having at one of its ends a head, and near the other end with a hemispherical profile a cylindrical stop.
Le cathéter réutilisable suivant la présente invention comporte un corps cylindrique qui est réalisé dans un tube métallique inoxydable rigide. Le cathéter réutilisable suivant la présente invention comporte un corps cylindrique qui est constitué d'un tube souple réalisé dans un matériau plastique autour duquel est prévue une armature métallique déformable.The reusable catheter according to the present invention comprises a cylindrical body which is produced in a rigid stainless metal tube. The reusable catheter according to the present invention comprises a cylindrical body which consists of a flexible tube made of a plastic material around which is provided a deformable metal frame.
Le cathéter réutilisable suivant la présente invention comporte un corps cylindrique qui comprend, à proximité des moyens de préhension, un épaulement à profil conique dont la base la moins large est tournée du coté desdits moyens de préhension.The reusable catheter according to the present invention comprises a cylindrical body which comprises, close to the gripping means, a shoulder with a conical profile whose narrower base is turned towards the side of said gripping means.
Le cathéter réutilisable suivant la présente invention comporte un épaulement conique, dont la base la moins large présente un diamètre externe identique à celui du corps cylindrique, tandis que la base la plus large du cône présente un diamètre supérieur à celui dudit corps cylindrique.The reusable catheter according to the present invention comprises a conical shoulder, the narrower base of which has an external diameter identical to that of the cylindrical body, while the widest base of the cone has a diameter greater than that of said cylindrical body.
Le cathéter réutilisable suivant la présente invention comporte un corps cylindrique qui est introduit dans un manchon élastique pour rendre la bague expansible des moyens de retenue, étanche.The reusable catheter according to the present invention comprises a cylindrical body which is introduced into an elastic sleeve to make the ring expandable of the retaining means, sealed.
Le cathéter réutilisable suivant la présente invention comporte un manchon élastique qui est composé d'un tube mince réalisé dans une matière telle que du silicone ou du latex ou toute autre matière analogue.The reusable catheter according to the present invention comprises an elastic sleeve which is composed of a thin tube made of a material such as silicone or latex or any other similar material.
Le cathéter réutilisable suivant la présente invention comporte un tube qui présente une première extrémité ouverte indéformable et dont le diamètre interne correspond à celui externe de l'épaulement du manchon pour venir en butée contre celui-ci, et une seconde extrémité ouverte pourvue d'un bourrelet faiblement déformable permettant d'immobiliser le manchon élastique en position tendue sur le corps cylindrique, au niveau de l'épaulement conique, par l'intermédiaire d'une bague fendue à profil complémentaire.The reusable catheter according to the present invention comprises a tube which has a first non-deformable open end and whose internal diameter corresponds to that of the outer shoulder of the sleeve to come into abutment against it, and a second open end provided with a slightly deformable bead making it possible to immobilize the elastic sleeve in the stretched position on the cylindrical body, at the level of the conical shoulder, by means of a split ring with a complementary profile.
La description qui va suivre en regard des dessins annexés, donnés à titre d'exemples non limitatifs, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer :The description which follows with reference to the appended drawings, given by way of nonlimiting examples, will make it possible to better understand the invention, the characteristics which it presents and the advantages which it is capable of providing:
Figure 1 est une vue illustrant le cathéter réutilisable suivant la présente invention.Figure 1 is a view illustrating the reusable catheter according to the present invention.
Figures 2 et 3 sont des vues montrant en détail les moyens de guidage et de retenue en position rétractée afin de former une collerette périphérique autour de l'extrémité du cathéter réutilisable suivant la présente invention.Figures 2 and 3 are views showing in detail the guide and retaining means in the retracted position in order to form a peripheral flange around the end of the reusable catheter according to the present invention.
Figure 4 est une vue représentant le mandrin chirurgical permettant d'actionner les moyens de guidage du cathéter réutilisable suivant la présente invention. Figure 5 est une vue illustrant en détail les moyens de guidage et de retenue en position allongée lors de l'introduction du mandrin chirurgical à l'intérieur du cathéter réutilisable suivant la présente invention.Figure 4 is a view showing the surgical mandrel for actuating the guide means of the reusable catheter according to the present invention. Figure 5 is a view illustrating in detail the guide means and retaining in the extended position during the introduction of the surgical mandrel inside the reusable catheter according to the present invention.
Figures 6a à 6d sont des vues schématiques montrant les différentes étapes à réaliser pour l'introduction du cathéter réutilisable à l'intérieur du site opératoire.Figures 6a to 6d are schematic views showing the different steps to perform for the introduction of the reusable catheter inside the operating site.
Figure 7 est une vue montrant une variante du cathéter réutilisable afin que ce dernier présente un corps cylindrique souple.Figure 7 is a view showing a variant of the reusable catheter so that the latter has a flexible cylindrical body.
Figures 8 et 9 sont des vues représentant en détail les moyens de guidage et de retenue en position rétractée afin de former une collerette périphérique autour de l'extrémité du cathéter réutilisable souple suivant la présente invention.Figures 8 and 9 are views showing in detail the guide and retaining means in the retracted position in order to form a peripheral flange around the end of the flexible reusable catheter according to the present invention.
Figure 10 est une vue illustrant un autre mandrin chirurgical permettant d'actionner les moyens de guidage du cathéter réutilisable souple suivant la présente invention.Figure 10 is a view illustrating another surgical mandrel for actuating the guide means of the flexible reusable catheter according to the present invention.
Figure 11 est une vue montrant en détail les moyens de guidage et de retenue en position allongée lors de l'introduction du mandrin chirurgical à l'intérieur du cathéter réutilisable souple suivant la présente invention.Figure 11 is a view showing in detail the guide and retaining means in the extended position during the introduction of the surgical mandrel inside the flexible reusable catheter according to the present invention.
Figures 12a à 12d sont des vues schématiques représentant les différentes étapes à réaliser pour l'introduction du cathéter réutilisable souple à l'intérieur du site opératoire.Figures 12a to 12d are schematic views showing the different steps to perform for the introduction of the flexible reusable catheter inside the operating site.
Figures 13 à 18 sont des vues illustrant la mise en place et la fixation d'un tube déformable élastiquement autour du cathéter réutilisable afin de constituer des moyens d'étanchéité autour des moyens de retenue.Figures 13 to 18 are views illustrating the establishment and fixing of an elastically deformable tube around the reusable catheter in order to constitute sealing means around the retaining means.
On a montré en figures 1 à 5 un cathéter réutilisable 1 constitué d'un corps cylindrique 2 réalisé dans un tube en matière métallique inoxydable.FIGS. 1 to 5 show a reusable catheter 1 made up of a cylindrical body 2 produced in a tube made of stainless metallic material.
Le corps cylindrique 2 comporte à l'une de ses extrémités des moyens de connexion 3 qui sont disposés à proximité d'une tête 4 formant les moyens de préhension du cathéter réutilisable 1 par le chirurgien.The cylindrical body 2 comprises at one of its ends connection means 3 which are arranged near a head 4 forming the means for gripping the reusable catheter 1 by the surgeon.
Les moyens de connexion 3 sont constitués de tubes 5 et 6 formant des entrées qui communiquent respectivement avec des canaux non coaxiaux 7 et 8 percés dans la partie interne de la tête 4 et du corps cylindrique 2.The connection means 3 consist of tubes 5 and 6 forming inlets which communicate respectively with non-coaxial channels 7 and 8 drilled in the internal part of the head 4 and of the cylindrical body 2.
Le tube 5 est prévu dans le prolongement du corps cylindrique 2 et permet l'introduction dans le canal principal 8 d'un mandrin chirurgical 9 ou d'une optique non représentés.The tube 5 is provided in the extension of the cylindrical body 2 and allows the introduction into the main channel 8 of a surgical mandrel 9 or optics not shown.
Le tube 6 débouche dans le canal secondaire 7 suivant une certaine inclinaison par rapport à l'axe longitudinal XX' du corps cylindrique 2 d'environ 15 degrés largement rayonnes pour permettre le passage d'instruments semi-rigides ou d'un fluide.The tube 6 opens into the secondary channel 7 at a certain inclination relative to the longitudinal axis XX 'of the cylindrical body 2 of about 15 degrees largely shelved to allow the passage of semi-rigid instruments or a fluid.
Le tube 6 comporte un dispositif de fermeture et d'ouverture 10, par exemple un robinet de type LUER métallique à une voie.The tube 6 comprises a closing and opening device 10, for example a metal one-way LUER type valve.
Le mandrin chirurgical 9 est constitué d'une tige métallique 11 comportant à l'une de ses extrémités une tête 31 , tandis que l'extrémité opposée 12 présente un profil effilé et pointu.The surgical mandrel 9 consists of a metal rod 11 having at one of its ends a head 31, while the opposite end 12 has a tapered and pointed profile.
La tige 11 comporte à proximité de l'extrémité effilée 12 une butée cylindrique 13 dont le diamètre externe est supérieur à celui de la tige et de l'extrémité effilée.The rod 11 comprises near the tapered end 12 a cylindrical stop 13 whose external diameter is greater than that of the rod and the tapered end.
Le corps cylindrique 2 comporte, à l'opposé des moyens de connexion 3 et de préhension 4, une chambre interne 14 à profil cylindrique dans laquelle débouchent les canaux non coaxiaux 7 et 8, et coulissent suivant l'axe longitudinal XX' des moyens de guidage 15 permettant la déformation de moyens de retenue 16.The cylindrical body 2 comprises, opposite the connection 3 and gripping means 4, an internal chamber 14 with a cylindrical profile into which the non-coaxial channels 7 and 8 open, and slide along the longitudinal axis XX 'of the means of guide 15 allowing the deformation of retaining means 16.
Les moyens de guidage 15 sont constitués d'un manchon cylindrique 17 comportant dans sa partie interne deux alésages débouchant non coaxiaux 18 et 19 qui sont disposés respectivement dans le prolongement des canaux 7 et 8 du corps cylindrique 2,The guide means 15 consist of a cylindrical sleeve 17 comprising in its internal part two non-coaxial through bores 18 and 19 which are disposed respectively in the extension of the channels 7 and 8 of the cylindrical body 2,
Le manchon cylindrique 17 comporte une portion allongée et cylindrique 20 qui coulisse à l'intérieur de la chambre 14 du corps cylindrique 2, et un épaulement 21 présentant un diamètre externe supérieur à celui de la portion allongée 20.The cylindrical sleeve 17 has an elongated and cylindrical portion 20 which slides inside the chamber 14 of the cylindrical body 2, and a shoulder 21 having an external diameter greater than that of the elongated portion 20.
L'épaulement 21 du manchon 17 présente un diamètre externe qui est identique à celui externe du corps cylindrique 2 afin de recevoir les moyens de retenue 16.The shoulder 21 of the sleeve 17 has an external diameter which is identical to that of the cylindrical body 2 in order to receive the retaining means 16.
L'épaulement 21 du manchon 17 présente sur une portion de son diamètre un pan incliné 22 dont l'angle d'inclinaison est identique à celui de l'extrémité effilée 12 du mandrin chirurgical 9.The shoulder 21 of the sleeve 17 has, over a portion of its diameter, an inclined face 22 whose angle of inclination is identical to that of the tapered end 12 of the surgical mandrel 9.
L'alésage 19 du manchon 17 présente, d'une part un premier diamètre interne d1 légèrement supérieur à celui externe de la butée 13 du mandrin chirurgical 9, et d'autre part un second diamètre interne d2 à profil trilobé, ménagé principalement dans l'épaulement 21 qui est de diamètre inférieur à celui d1 , afin de constituer un épaulement interne e1.The bore 19 of the sleeve 17 has, on the one hand a first internal diameter d1 slightly greater than that external of the stop 13 of the surgical mandrel 9, and on the other hand a second internal diameter d2 with a three-lobed profile, formed mainly in the 'shoulder 21 which is of diameter smaller than that d1, in order to constitute an internal shoulder e1.
Le diamètre interne d2 est légèrement supérieur à celui de l'extrémité effilée 12 du mandrin chirurgical 9.The internal diameter d2 is slightly greater than that of the tapered end 12 of the surgical mandrel 9.
Le profil trilobé de l'alésage 19 au niveau de son diamètre d2 permet le centrage d'une optique à l'intérieur du cathéter réutilisable 1 tout en permettant l'écoulement d'un fluide sur la périphérie dudit optique. L'épaulement interne e1 permet de bloquer longitudinalement suivant l'axe XX' du corps cylindrique 2 la course de déplacement du mandrin chirurgical 9 lorsque la butée 13 vient en contact avec ledit épaulement interne e1.The three-lobed profile of the bore 19 at its diameter d2 allows the centering of an optic inside the reusable catheter 1 while allowing the flow of a fluid on the periphery of said optic. The internal shoulder e1 makes it possible to block longitudinally along the axis XX 'of the cylindrical body 2 the movement stroke of the surgical mandrel 9 when the stop 13 comes into contact with said internal shoulder e1.
Les moyens de retenue 16 sont constitués d'une bague expansible 23 de faible épaisseur réalisée à partir d'un tube hyper élastique en alliage de type Ni-Tï.The retaining means 16 consist of an expandable ring 23 of small thickness made from a hyper-elastic tube of Ni-Ti type alloy.
La bague expansible 23 est divisée dans sa partie centrale, et suivant une direction longitudinale, par plusieurs fentes parallèles 24 formant de fines lamelles 25 qui sont éduquées par traitement thermique.The expandable ring 23 is divided in its central part, and in a longitudinal direction, by several parallel slots 24 forming thin strips 25 which are educated by heat treatment.
Les lamelles 25 sont délimitées en longueur à chaque extrémité de la bague expansible 23 par des portions cylindriques 26 et 27.The lamellae 25 are delimited in length at each end of the expandable ring 23 by cylindrical portions 26 and 27.
La bague 23 naturellement en position déformée, s'ouvre et se referme en exerçant une traction à ses extrémités.The ring 23 naturally in the deformed position, opens and closes by exerting traction at its ends.
La position déformée des lamelles 25 permet de constituer, autour du corps cylindrique 2, une collerette 28 formant une base d'appui lorsque le cathéter réutilisable 1 est introduit à l'intérieur du site opératoire.The deformed position of the strips 25 makes it possible to constitute, around the cylindrical body 2, a flange 28 forming a support base when the reusable catheter 1 is introduced inside the operating site.
La bague expansible 23 permet de relier les moyens de guidage 15 au corps cylindrique 2 du cathéter réutilisable 1.The expandable ring 23 makes it possible to connect the guide means 15 to the cylindrical body 2 of the reusable catheter 1.
En effet, la portion cylindrique 26 de la bague 23 est fixée sur le diamètre externe du corps cylindrique 2, tandis que la portion 27 est fixée sur le diamètre externe de l'épaulement 21 du manchon 17.In fact, the cylindrical portion 26 of the ring 23 is fixed to the external diameter of the cylindrical body 2, while the portion 27 is fixed to the external diameter of the shoulder 21 of the sleeve 17.
En figures 6a à 6d, on a représenté les différentes étapes d'utilisation du cathéter réutilisable 1 pour son introduction à l'intérieur du site opératoire.In Figures 6a to 6d, there is shown the different stages of use of the reusable catheter 1 for its introduction inside the operating site.
En position de repos le cathéter réutilisable 1 présente des moyens de retenue 16 déformés, afin que les lamelles 25 affectent le profil en collerette 28 autour du corps cylindrique 2 (figure 6a).In the rest position, the reusable catheter 1 has deformed retaining means 16, so that the strips 25 affect the flanged profile 28 around the cylindrical body 2 (FIG. 6a).
Pour permettre la mise en place du cathéter réutilisable 1 dans le site opératoire, le chirurgien doit préalablement introduire le mandrin chirurgical 9 à l'intérieur du canal 8 et de l'alésage 19, jusqu'à ce que la butée 13 vienne en appui contre l'épaulement e1 de l'alésage 19 (figure 5).To allow the placement of the reusable catheter 1 in the operating site, the surgeon must first introduce the surgical mandrel 9 inside the channel 8 and the bore 19, until the stop 13 comes to bear against the shoulder e1 of the bore 19 (FIG. 5).
Ensuite, le chirurgien pousse le mandrin chirurgical 9 afin de déplaceMes moyens de guidage 15, et plus particulièrement le manchon cylindrique 17 suivant une direction longitudinale portée par l'axe XX' du corps 2 (figure 6b).Then, the surgeon pushes the surgical mandrel 9 in order to move my guide means 15, and more particularly the cylindrical sleeve 17 in a longitudinal direction carried by the axis XX 'of the body 2 (FIG. 6b).
Le déplacement du manchon cylindrique 17 permet d'allonger les lamelles 25 de la bague expansible 23 suivant une direction sensiblement parallèle à l'axe XX' du corps cylindrique 2 pour se rapprocher le plus possible du diamètre externe dudit corps (figure 6b).The displacement of the cylindrical sleeve 17 makes it possible to lengthen the lamellae 25 of the expandable ring 23 in a direction substantially parallel to the axis XX ' the cylindrical body 2 to get as close as possible to the external diameter of said body (Figure 6b).
Le chirurgien procède au verrouillage du mandrin chirurgical 9 à l'intérieur du corps cylindrique 2 pour immobiliser la bague expansible 23 en position allongée afin de pouvoir introduire le cathéter réutilisable 1 dans le site opératoire. Le verrouillage du mandrin chirurgical 9 dans le corps cylindrique 2 est obtenu par un système de type à baïonnette non représenté.The surgeon locks the surgical mandrel 9 inside the cylindrical body 2 to immobilize the expandable ring 23 in the extended position so as to be able to introduce the reusable catheter 1 into the operating site. The locking of the surgical mandrel 9 in the cylindrical body 2 is obtained by a bayonet type system not shown.
L'introduction du cathéter réutilisable 1 dans le site opératoire est facilitée par le profil effilé 12 du mandrin 9 qui débouche à l'extérieur du corps cylindrique 2 pour permettre la perforation des tissus du patient.The introduction of the reusable catheter 1 into the operating site is facilitated by the tapered profile 12 of the mandrel 9 which opens out to the outside of the cylindrical body 2 to allow the perforation of the patient's tissues.
Le chirurgien positionne le cathéter réutilisable 1 afin que la bague expansible 23 soit disposée à l'intérieur du site opératoire.The surgeon positions the reusable catheter 1 so that the expandable ring 23 is placed inside the operating site.
Dès que le cathéter réutilisable 1 est parfaitement positionné dans le site opératoire, le chirurgien déverrouille le mandrin chirurgical 9 pour l'extraire du corps cylindrique 2 (figure 6c).As soon as the reusable catheter 1 is perfectly positioned in the operating site, the surgeon unlocks the surgical mandrel 9 to extract it from the cylindrical body 2 (FIG. 6c).
Le retrait du mandrin chirurgical 9 permet à la bague expansible 23 de reprendre naturellement son profil en forme de collerette 28 étant donné les caractéristiques de l'alliage hyper élastique (figure 6d).The withdrawal of the surgical mandrel 9 allows the expandable ring 23 to naturally resume its profile in the form of a collar 28 given the characteristics of the hyper-elastic alloy (FIG. 6d).
Le chirurgien peut ensuite utiliser le cathéter réutilisable 1 pour effectuer ses différents tests ou opérations.The surgeon can then use the reusable catheter 1 to carry out his various tests or operations.
En figures 7 à 11 on a montré une variante du cathéter réutilisable 1 décrit précédemment en ce qui concerne plus particulièrement la réalisation du corps cylindrique 2.In FIGS. 7 to 11, a variant of the reusable catheter 1 described above has been shown with regard more particularly to the production of the cylindrical body 2.
En effet, ce dernier est constitué d'un tube souple 29 réalisé dans un matériau plastique tel que du PTFE ou analogue, autour duquel est prévue une armature métallique 30 déformable.Indeed, the latter consists of a flexible tube 29 made of a plastic material such as PTFE or the like, around which is provided a deformable metal frame 30.
Le corps cylindrique 2 comporte à l'une de ses extrémités les moyens de connexion 3 qui sont disposés à proximité de la tête 4 formant les moyens de préhension du cathéter réutilisable 1 par le chirurgien.The cylindrical body 2 comprises at one of its ends the connection means 3 which are arranged near the head 4 forming the means for gripping the reusable catheter 1 by the surgeon.
Les moyens de connexion 3 sont constitués de tubes 5 et 6 formant des entrées qui communiquent avec un seul et unique canal principal 8 percé dans la partie interne de la tête 4 et du corps cylindrique 2.The connection means 3 consist of tubes 5 and 6 forming inlets which communicate with a single main channel 8 pierced in the internal part of the head 4 and of the cylindrical body 2.
Le tube 5 est prévu dans le prolongement du corps cylindrique 2 et permet l'introduction dans le canal principal 8, d'un mandrin chirurgical 9 ou d'une optique non représentés. Le tube 6 débouche dans le canal principal 8 suivant une certaine inclinaison par rapport à l'axe longitudinal XX' du corps cylindrique 2 d'environ 15 degrés largement rayonnes pour permettre le passage d'instruments semi-rigides ou d'un fluide.The tube 5 is provided in the extension of the cylindrical body 2 and allows the introduction into the main channel 8, of a surgical mandrel 9 or an optic not shown. The tube 6 opens into the main channel 8 at a certain inclination relative to the longitudinal axis XX 'of the cylindrical body 2 of about 15 degrees largely radiated to allow the passage of semi-rigid instruments or a fluid.
Le tube 6 comporte un dispositif de fermeture et d'ouverture 10, par exemple un robinet de type LUER métallique à une voie.The tube 6 comprises a closing and opening device 10, for example a metal one-way LUER type valve.
Le mandrin chirurgical 9 est constitué d'une tige métallique 11 comportant à l'une de ses extrémités une tête 31 , tandis que l'extrémité opposée présente un profil en demi-sphère 32.The surgical mandrel 9 consists of a metal rod 11 comprising at one of its ends a head 31, while the opposite end has a hemispherical profile 32.
La tige 11 comporte à proximité de l'extrémité en demi-sphère 32 une butée cylindrique 13 dont le diamètre externe est supérieur à celui de la tige et de l'extrémité en demi-sphère.The rod 11 comprises, near the hemispherical end 32, a cylindrical stop 13 whose external diameter is greater than that of the rod and of the hemispherical end.
Le corps cylindrique 2 comporte à l'opposé des moyens de connexion 3 et de préhension 4 une chambre interne 14 à profil cylindrique dans laquelle débouche le canal principal 8 et coulissent, suivant l'axe longitudinal XX', les moyens de guidage 15 permettant la déformation des moyens de retenue 16.The cylindrical body 2 comprises, opposite the connection 3 and gripping means 4, an internal chamber 14 with a cylindrical profile into which the main channel 8 opens and slide, along the longitudinal axis XX ′, the guide means 15 allowing the deformation of the retaining means 16.
Les moyens de guidage 15 sont constitués d'un manchon cylindrique 17 comportant dans sa partie interne un alésage débouchant 19, qui est disposé dans le prolongement du canal principal 8 du corps cylindrique 2.The guide means 15 consist of a cylindrical sleeve 17 comprising in its internal part a through bore 19, which is arranged in the extension of the main channel 8 of the cylindrical body 2.
Le manchon cylindrique 17 comporte une portion allongée et cylindrique 20 qui coulisse à l'intérieur de la chambre 14 du corps cylindrique 2, et un épaulement 21 présentant un diamètre externe supérieur e celui de la portion allongée 20.The cylindrical sleeve 17 comprises an elongated and cylindrical portion 20 which slides inside the chamber 14 of the cylindrical body 2, and a shoulder 21 having an external diameter greater than that of the elongated portion 20.
L'épaulement 21 du manchon 17 présente un diamètre externe qui est identique à celui externe du corps cylindrique 2 afin de recevoir les moyens de retenue 16. L'épaulement 21 comporte une portion cylindrique 35 de plus faible diamètre située dans le prolongement du corps cylindrique 2.The shoulder 21 of the sleeve 17 has an external diameter which is identical to that of the cylindrical body 2 in order to receive the retaining means 16. The shoulder 21 has a cylindrical portion 35 of smaller diameter located in the extension of the cylindrical body 2.
L'alésage 19 du manchon 17 présente, d'une part un premier diamètre interne d1 légèrement supérieur à celui externe de la butée 13 du mandrin chirurgical 9, et d'autre part un second diamètre interne d2 à profil trilobé, ménagé principalement dans l'épaulement 21, qui est de diamètre inférieur à celui d1, afin de constituer un épaulement interne e1.The bore 19 of the sleeve 17 has, on the one hand a first internal diameter d1 slightly greater than that external of the stop 13 of the surgical mandrel 9, and on the other hand a second internal diameter d2 with a three-lobed profile, formed mainly in the 'shoulder 21, which is of smaller diameter than that d1, in order to constitute an internal shoulder e1.
Le diamètre interne d2 est légèrement supérieur à celui de l'extrémité en demi- sphère 32 du mandrin chirurgical 9.The internal diameter d2 is slightly greater than that of the hemispherical end 32 of the surgical mandrel 9.
Le profil trilobé de l'alésage 19 au niveau de son diamètre d2 permet le centrage d'une optique à l'intérieur du cathéter réutilisable 1 , tout en permettant l'écoulement d'un fluide sur la périphérie de ladite optique. L'épaulement interne e1 permet de bloquer longitudinalement suivant l'axe XX' du corps cylindrique 2, la course de déplacement du mandrin chirurgical 9 lorsque la butée 13 vient en contact avec ledit épaulement interne e . Les moyens de retenue 16 sont constitués d'une bague expansible 23 de faible épaisseur réalisée à partir d'un tube hyper élastique en alliage de type Ni-Tï.The three-lobed profile of the bore 19 at its diameter d2 allows the centering of an optic inside the reusable catheter 1, while allowing the flow of a fluid on the periphery of said optic. The internal shoulder e1 makes it possible to block longitudinally along the axis XX 'of the cylindrical body 2, the movement stroke of the surgical mandrel 9 when the stop 13 comes into contact with said internal shoulder e. The retaining means 16 consist of an expandable ring 23 of small thickness produced from a hyper-elastic tube of Ni-Ti type alloy.
La bague expansible 23 est divisée dans sa partie centrale et suivant une direction longitudinale par plusieurs fentes parallèles 24, formant de fines lamelles 25 qui sont éduquées par traitement thermique.The expandable ring 23 is divided in its central part and in a longitudinal direction by several parallel slots 24, forming thin strips 25 which are educated by heat treatment.
Les lamelles 25 sont délimitées en longueur, à chaque extrémité de la bague expansible 23, par des portions cylindriques 26 et 27.The lamellae 25 are delimited in length, at each end of the expandable ring 23, by cylindrical portions 26 and 27.
La bague 23, naturellement en position déformée, s'ouvre et se referme en exerçant une traction à ses extrémités.The ring 23, naturally in the deformed position, opens and closes by exerting traction at its ends.
La position déformée des lamelles 25 permet de constituer autour du corps cylindrique 2 une collerette 28 formant une base d'appui lorsque le cathéter réutilisable 1 est introduit à l'intérieur du site opératoire.The deformed position of the strips 25 makes it possible to constitute around the cylindrical body 2 a flange 28 forming a support base when the reusable catheter 1 is introduced inside the operating site.
La bague expansible 23 permet de relier les moyens de guidage 15 au corps cylindrique 2 du cathéter réutilisable 1.The expandable ring 23 makes it possible to connect the guide means 15 to the cylindrical body 2 of the reusable catheter 1.
En effet, la portion cylindrique 26 de la bague 23 est fixée sur le diamètre externe du corps cylindrique 2, tandis que la portion 27 est fixée sur le diamètre externe de l'épaulement 21 du manchon 17.In fact, the cylindrical portion 26 of the ring 23 is fixed to the external diameter of the cylindrical body 2, while the portion 27 is fixed to the external diameter of the shoulder 21 of the sleeve 17.
En figures 12a à 12d, on a représenté les différentes étapes d'utilisation du cathéter réutilisable 1 décrit en figures 7 à 11 pour son introduction à l'intérieur du site opératoire.In Figures 12a to 12d, there is shown the different stages of use of the reusable catheter 1 described in Figures 7 to 11 for its introduction inside the operating site.
En position de repos, le cathéter réutilisable 1 présente des moyens de retenue 16 déformés afin que les lamelles 25 affectent le profil en collerette 28 autour du corps cylindrique 2 (figure 12a).In the rest position, the reusable catheter 1 has retaining means 16 deformed so that the strips 25 affect the flanged profile 28 around the cylindrical body 2 (FIG. 12a).
Pour permettre la mise en place du cathéter réutilisable 1 dans le site opératoire, le chirurgien doit préalablement introduire le mandrin chirurgical 9 à l'intérieur du canal 8 et de l'alésage 19 jusqu'à ce que la butée 13 vienne en appui contre l'épaulement e1 de l'alésage 19 (figure 11).To allow the placement of the reusable catheter 1 in the operating site, the surgeon must first introduce the surgical mandrel 9 inside the channel 8 and the bore 19 until the stop 13 comes to bear against the 'shoulder e1 of bore 19 (Figure 11).
Ensuite, le chirurgien pousse le mandrin chirurgical 9 afin de déplacer les moyens de guidage 15, et plus particulièrement le manchon cylindrique 17, suivant une direction longitudinale portée par l'axe XX' du corps 2 (figure 12b).Then, the surgeon pushes the surgical mandrel 9 in order to move the guide means 15, and more particularly the cylindrical sleeve 17, in a longitudinal direction carried by the axis XX 'of the body 2 (FIG. 12b).
Le déplacement du manchon cylindrique 17 permet d'allonger les lamelles 25 de la bague expansible 23, suivant une direction sensiblement parallèle à l'axe XX' du corps cylindrique 2 pour se rapprocher le plus possible du diamètre externe dudit corps (figure 12b).The displacement of the cylindrical sleeve 17 makes it possible to lengthen the lamellae 25 of the expandable ring 23, in a direction substantially parallel to the axis XX ' of the cylindrical body 2 to get as close as possible to the external diameter of said body (Figure 12b).
Le chirurgien procède au verrouillage du mandrin chirurgical 9 à l'intérieur du corps cylindrique 2 pour immobiliser la bague expansible 23 en position allongée, afin de pouvoir introduire le cathéter réutilisable 1 dans le site opératoire. Le verrouillage du mandrin chirurgical 9 dans le corps cylindrique 2 est obtenu par un système de type à baïonnette non représenté.The surgeon locks the surgical mandrel 9 inside the cylindrical body 2 to immobilize the expandable ring 23 in the extended position, so as to be able to introduce the reusable catheter 1 into the operating site. The locking of the surgical mandrel 9 in the cylindrical body 2 is obtained by a bayonet type system not shown.
Le chirurgien positionne le cathéter réutilisable 1 afin que la bague expansible 23 soit disposée à l'intérieur du site opératoire.The surgeon positions the reusable catheter 1 so that the expandable ring 23 is placed inside the operating site.
Dès que le cathéter réutilisable 1 est parfaitement positionné dans le site opératoire, le chirurgien déverrouille le mandrin chirurgical 9 pour l'extraire du corps cylindrique 2 (figure 12c).As soon as the reusable catheter 1 is perfectly positioned in the operating site, the surgeon unlocks the surgical mandrel 9 to extract it from the cylindrical body 2 (FIG. 12c).
Le retrait du mandrin chirurgical 9 permet à la bague expansible 23 de reprendre naturellement son profil en forme de collerette 28, étant donné les caractéristiques de l'alliage hyper élastique (figure 12c).The withdrawal of the surgical mandrel 9 allows the expandable ring 23 to naturally resume its profile in the form of a collar 28, given the characteristics of the hyper-elastic alloy (FIG. 12c).
Le chirurgien peut ensuite utiliser le cathéter réutilisable 1 pour effectuer ses différents tests ou opérations.The surgeon can then use the reusable catheter 1 to carry out his various tests or operations.
On note que le corps cylindrique 2 du cathéter réutilisable 1 peut se déformer selon les desiderata du chirurgien lors des ses opérations (figure 12d).It is noted that the cylindrical body 2 of the reusable catheter 1 can deform according to the wishes of the surgeon during his operations (FIG. 12d).
En figures 13 à 18 on a montré un manchon élastique 33 qui vient couvrir le corps cylindrique 2 du cathéter réutilisable 1, lorsqu'il est nécessaire de rendre la bague expansible 23 des moyens de retenue 16, étanche.In Figures 13 to 18 there is shown an elastic sleeve 33 which covers the cylindrical body 2 of the reusable catheter 1, when it is necessary to make the expandable ring 23 of the retaining means 16, sealed.
Le manchon élastique 33 comporte un tube mince 34 ouvert à chaque extrémité et réalisé dans une matière telle que du silicone ou du latex ou toute autre matière analogue.The elastic sleeve 33 comprises a thin tube 34 open at each end and made of a material such as silicone or latex or any other similar material.
Le tube 34 présente une première extrémité ouverte 36 qui est indéformable et dont le diamètre interne correspond à celui externe de la portion 35 de l'épaulement 21 pour venir en butée contre celui ci.The tube 34 has a first open end 36 which is non-deformable and whose internal diameter corresponds to that of the external portion 35 of the shoulder 21 to abut against it.
Le tube 34 présente une seconde extrémité ouverte 37 pourvue d'un bourrelet 38 faiblement déformable, permettant d'immobiliser le manchon élastique 33 en position tendue sur le corps cylindrique 2 du cathéter réutilisable 1.The tube 34 has a second open end 37 provided with a slightly deformable bead 38, making it possible to immobilize the elastic sleeve 33 in the stretched position on the cylindrical body 2 of the reusable catheter 1.
Le corps cylindrique 2 comporte à proximité des moyens de préhension 4, un épaulement 39 à profil conique dont la base la moins large est tournée du coté desdits moyens de préhension. Ainsi, la base la moins large de l'épaulement conique 39 présente un diamètre externe identique à celui du corps cylindrique 2 tandis que la base la plus large du cône présente un diamètre supérieur à celui dudit corps cylindrique.The cylindrical body 2 comprises, near the gripping means 4, a shoulder 39 with a conical profile, the narrower base of which is turned towards the side of said gripping means. Thus, the narrower base of the conical shoulder 39 has an external diameter identical to that of the cylindrical body 2 while the wider base of the cone has a diameter greater than that of said cylindrical body.
La fixation du manchon élastique 33 est réalisée lorsque les moyens de retenue 16, et plus particulièrement la bague expansible 23, sont disposés suivant une direction allongée, c'est à dire lorsque les lamelles 25 sont placées suivant une direction sensiblement parallèle à celle de l'axe XX' du corps cylindrique 2.The elastic sleeve 33 is fixed when the retaining means 16, and more particularly the expandable ring 23, are arranged in an elongated direction, that is to say when the lamellae 25 are placed in a direction substantially parallel to that of the 'axis XX' of the cylindrical body 2.
Lorsque les moyens de retenue 16 sont en position allongée, le chirurgien peut couvrir le corps cylindrique 2 du cathéter réutilisable 1 du manchon élastique 33.When the retaining means 16 are in the extended position, the surgeon can cover the cylindrical body 2 of the reusable catheter 1 of the elastic sleeve 33.
La mise en place du manchon élastique 33 est réalisée lorsque l'extrémité ouverte 37 du tube 34 est enfilée sur l'épaulement conique 39 de manière que le bourrelet 38 soit placé sur le corps cylindrique 2, entre les moyens de préhension 4 et l'épaulement conique 38.The establishment of the elastic sleeve 33 is performed when the open end 37 of the tube 34 is threaded over the conical shoulder 39 so that the bead 38 is placed on the cylindrical body 2, between the gripping means 4 and the tapered shoulder 38.
Une bague de fixation 40 est placée autour du manchon élastique 33 au niveau de son extrémité ouverte 37, afin de bloquer cette dernière sur l'épaulement conique 39.A fixing ring 40 is placed around the elastic sleeve 33 at its open end 37, in order to block the latter on the conical shoulder 39.
En effet, la bague 40 comporte une fente 41 qui débouche dans un alésage central 42, pourvu d'une portée interne 43 à profil conique. La bague 40 est disposée de manière que la portée conique 43 de l'alésage 42 vienne en appui contre l'épaulement conique 39 pour venir bloquer le manchon élastique 33, autour du corps cylindrique 2 du cathéter réutilisable 2.Indeed, the ring 40 has a slot 41 which opens into a central bore 42, provided with an internal bearing 43 with a conical profile. The ring 40 is arranged so that the conical surface 43 of the bore 42 comes to bear against the conical shoulder 39 in order to block the elastic sleeve 33, around the cylindrical body 2 of the reusable catheter 2.
On constate que le manchon élastique 33 se déforme dès que les moyens de retenue 16 présentent un profil en collerette 28, afin que ces derniers présentent des caractéristiques d'étanchéité lorsqu'ils sont introduits dans le site opératoire.It can be seen that the elastic sleeve 33 deforms as soon as the retaining means 16 have a flanged profile 28, so that the latter have sealing characteristics when they are introduced into the operating site.
Il doit d'ailleurs être entendu que la description qui précède n'a été donnée qu'a titre d'exemple et qu'elle ne limite nullement le domaine de l'invention dont on ne sortirait pas en remplaçant les détails d'exécutions décrits par tout autre équivalent. It should moreover be understood that the foregoing description has been given only by way of example and that it in no way limits the field of the invention from which one would not depart by replacing the details of executions described by any other equivalent.

Claims

REVENDICATIONS
1. Cathéter réutilisable pour le traitement et le diagnostic de l'infertilité par voie transvaginale, comportant un corps cylindrique (2) pourvu de moyens de connexion (3), de moyens de préhension (4), au moins un canal interne (7, 8) relié aux moyens de connexion (3) et des moyens de retenue (16) déformés par le couiissement d'un mandrin chirurgical (9), caractérisé en ce que le corps cylindrique (2) comporte à l'opposé des moyens de connexion (3) une chambre interne (14) destinée à recevoir des moyens de guidage (15) reliés audit corps par des moyens de retenue (16), qui sont constitués par une bague expansible (23), divisée dans sa partie centrale et suivant une direction longitudinale par plusieurs fentes parallèles (24) formant de fines lamelles (25), permettant de constituer autour du corps cylindrique (2) une collerette1. Reusable catheter for the treatment and diagnosis of infertility by transvaginal route, comprising a cylindrical body (2) provided with connection means (3), gripping means (4), at least one internal channel (7, 8) connected to the connection means (3) and retaining means (16) deformed by the couiissement of a surgical mandrel (9), characterized in that the cylindrical body (2) has opposite connection means (3) an internal chamber (14) intended to receive guide means (15) connected to said body by retaining means (16), which consist of an expandable ring (23), divided in its central part and according to a longitudinal direction by several parallel slits (24) forming thin strips (25), making it possible to constitute around the cylindrical body (2) a flange
(28) formant une base d'appui lorsque le cathéter réutilisable (1) est introduit à l'intérieur du site opératoire.(28) forming a support base when the reusable catheter (1) is inserted inside the operating site.
2. Cathéter réutilisable suivant la revendication 1 , caractérisé en ce que les moyens de guidage (15) sont constitués d'un manchon cylindrique (17) comportant au moins un alésage interne (18, 19) disposé dans le prolongement du canal (7, 8) du corps cylindrique (2), une portion allongée et cylindrique (20) coulissant à l'intérieur de la chambre (14) et un épaulement (21) présentant un diamètre externe qui est identique à celui externe du corps cylindrique (2) afin de recevoir les moyens de retenue (16).2. reusable catheter according to claim 1, characterized in that the guide means (15) consist of a cylindrical sleeve (17) comprising at least one internal bore (18, 19) arranged in the extension of the channel (7, 8) of the cylindrical body (2), an elongated and cylindrical portion (20) sliding inside the chamber (14) and a shoulder (21) having an external diameter which is identical to that of the external of the cylindrical body (2) in order to receive the retaining means (16).
3. Cathéter réutilisable suivant la revendication 2, caractérisé en ce que l'alésage (19) du manchon (17) présente, d'une part un premier diamètre interne (d1) légèrement supérieur à celui externe d'une butée (13) solidaire du mandrin chirurgical (9), et d'autre part un second diamètre interne (d2) ménagé principalement dans l'épaulement (21) qui est de diamètre inférieur à celui (d1), afin de constituer un épaulement interne (e1).3. reusable catheter according to claim 2, characterized in that the bore (19) of the sleeve (17) has, on the one hand a first internal diameter (d1) slightly greater than that of an external stop (13) integral of the surgical mandrel (9), and on the other hand a second internal diameter (d2) formed mainly in the shoulder (21) which is of smaller diameter than that (d1), in order to constitute an internal shoulder (e1).
4. Cathéter réutilisable suivant la revendication 1, caractérisé en ce que les moyens de retenue (16) sont constitués d'une bague expansible (23) de faible épaisseur, réalisée à partir d'un tube hyper élastique en alliage de type Ni-Ti.4. reusable catheter according to claim 1, characterized in that the retaining means (16) consist of an expandable ring (23) of small thickness, produced from a hyper-elastic tube of Ni-Ti type alloy .
5. Cathéter réutilisable suivant la revendication 4, caractérisé en ce que la bague expansible (23) est divisée dans sa partie centrale et suivant une direction longitudinale, par plusieurs fentes parallèles (24) formant de fines lamelles (25) qui sont éduquées par traitement thermique. 5. Reusable catheter according to claim 4, characterized in that the expandable ring (23) is divided in its central part and in a longitudinal direction, by several parallel slots (24) forming thin strips (25) which are educated by treatment thermal.
6. Cathéter réutilisable suivant la revendication 5, caractérisé en ce que les lamelles (25) sont délimitées en longueur à chaque extrémité de la bague expansible (23) par des portions cylindriques (26, 27) fixées respectivement sur le corps cylindrique (2) et sur l'épaulement (21 ) du manchon cylindrique (17).6. reusable catheter according to claim 5, characterized in that the lamellae (25) are delimited in length at each end of the expandable ring (23) by cylindrical portions (26, 27) fixed respectively on the cylindrical body (2) and on the shoulder (21) of the cylindrical sleeve (17).
7. Cathéter réutilisable suivant la revendication 5, caractérisé en ce que la bague (23) est naturellement en position déformée afin que les lamelles (25) constituent autour du corps cylindrique (2) une collerette (28).7. Reusable catheter according to claim 5, characterized in that the ring (23) is naturally in the deformed position so that the lamellae (25) constitute around the cylindrical body (2) a flange (28).
8. Cathéter réutilisable suivant la revendication 1 , caractérisé en ce que le mandrin chirurgical (9) est constitué d'une tige métallique (11) comportant à l'une de ses extrémités une tête (31), et à proximité de l'autre extrémité à profil effilé (12) une butée cylindrique (13).8. Reusable catheter according to claim 1, characterized in that the surgical mandrel (9) consists of a metal rod (11) having at one of its ends a head (31), and near the other tapered profile end (12) a cylindrical stop (13).
9. Cathéter réutilisable suivant la revendication 1, caractérisé en ce que le mandrin chirurgical (9) est constitué d'une tige métallique (11) comportant à l'une de ses extrémités une tête (31 ), et à proximité de l'autre l'extrémité à profil en demi-sphère (32), une butée cylindrique (13).9. reusable catheter according to claim 1, characterized in that the surgical mandrel (9) consists of a metal rod (11) having at one of its ends a head (31), and near the other the end with a hemispherical profile (32), a cylindrical stop (13).
10. Cathéter réutilisable suivant la revendication 1 , caractérisé en ce que le corps cylindrique (2) est réalisé dans un tube métallique inoxydable rigide.10. Reusable catheter according to claim 1, characterized in that the cylindrical body (2) is made in a rigid stainless metal tube.
11. Cathéter réutilisable suivant la revendication 1 , caractérisé en ce que le corps cylindrique (2) est constitué d'un tube souple (29) réalisé dans un matériau plastique autour duquel est prévu une armature métallique (30) déformable.11. Reusable catheter according to claim 1, characterized in that the cylindrical body (2) consists of a flexible tube (29) made of a plastic material around which is provided a deformable metal frame (30).
12. Cathéter réutilisable suivant la revendication 1, caractérisé en ce que le corps cylindrique (2) comporte à proximité des moyens de préhension (4) un épaulement (39) à profil conique dont la base la moins large est tournée du coté desdits moyens de préhension.12. Reusable catheter according to claim 1, characterized in that the cylindrical body (2) comprises, near the gripping means (4), a shoulder (39) with a conical profile whose narrower base is turned towards the side of said means. gripping.
13. Cathéter réutilisable suivant la revendication 12, caractérisé en ce que la base la moins large de l'épaulement conique (39) présente un diamètre externe identique à celui du corps cylindrique (2), tandis que la base la plus large du cône présente un diamètre supérieur à celui dudit corps cylindrique.13. reusable catheter according to claim 12, characterized in that the narrower base of the conical shoulder (39) has an external diameter identical to that of the cylindrical body (2), while the wider base of the cone has a diameter greater than that of said cylindrical body.
14. Cathéter réutilisable suivant la revendication 1, caractérisé en ce que le corps cylindrique (2) est introduit dans un manchon élastique (33) pour rendre la bague expansible (23) des moyens de retenue (16) étanche.14. Reusable catheter according to claim 1, characterized in that the cylindrical body (2) is introduced into an elastic sleeve (33) to make the expandable ring (23) of the retaining means (16) sealed.
15. Cathéter réutilisable suivant la revendication 14, caractérisé en ce que le manchon élastique (33) est composé d'un tube mince (34) réalisé dans une matière telle que du silicone ou du latex ou toute autre matière analogue. 15. Reusable catheter according to claim 14, characterized in that the elastic sleeve (33) is composed of a thin tube (34) made of a material such as silicone or latex or any other similar material.
6. Cathéter réutilisable suivant la revendication 15, caractérisé en ce que le tube (34) présente une première extrémité ouverte (36) qui est indéformable et dont le diamètre interne correspond à celui externe de l'épaulement (21) du manchon (17) pour venir en butée contre celui-ci, et une seconde extrémité ouverte (37) pourvue d'un bourrelet (38) faiblement déformable permettant d'immobiliser le manchon élastique (33) en position tendue sur le corps cylindrique (2) au niveau de l'épaulement conique (39) par l'intermédiaire d'une bague fendue (40) à profil complémentaire. 6. reusable catheter according to claim 15, characterized in that the tube (34) has a first open end (36) which is non-deformable and whose internal diameter corresponds to that of the outer shoulder (21) of the sleeve (17) to abut against it, and a second open end (37) provided with a slightly deformable bead (38) making it possible to immobilize the elastic sleeve (33) in the stretched position on the cylindrical body (2) at the conical shoulder (39) by means of a split ring (40) with a complementary profile.
PCT/FR2001/002006 2000-06-26 2001-06-25 Reusable catheter WO2002000286A1 (en)

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FR0008156A FR2810555B1 (en) 2000-06-26 2000-06-26 REUSABLE CATHETER

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US6929621B2 (en) 2002-10-02 2005-08-16 Civco Medical Instruments Co., Inc. Drainage catheter with bifurcating tip
WO2005013832A1 (en) * 2003-08-07 2005-02-17 Boston Scientific Limited Medical closure device
US8292917B2 (en) 2003-08-07 2012-10-23 Boston Scientific Scimed, Inc. Medical closure device
WO2006002261A2 (en) * 2004-06-22 2006-01-05 Boston Scientific Limited Medical device including actuator
WO2006002261A3 (en) * 2004-06-22 2006-06-08 Boston Scient Scimed Inc Medical device including actuator
US7416534B2 (en) 2004-06-22 2008-08-26 Boston Scientific Scimed, Inc. Medical device including actuator
US8303520B2 (en) 2004-06-22 2012-11-06 Boston Scientific Scimed, Inc. Medical device including actuator
US7766875B2 (en) 2007-09-28 2010-08-03 Codman & Shurtleff, Inc. Catheter for reduced reflux in targeted tissue delivery of a therapeutic agent
US8147480B2 (en) 2007-09-28 2012-04-03 Codman & Shurtleff, Inc. Catheter for reduced reflux in targeted tissue delivery of a therapeutic agent
US8439892B2 (en) 2007-09-28 2013-05-14 Codman & Shurtleff, Inc. Catheter for reduced reflux in targeted tissue delivery of a therapeutic agent
US8152775B2 (en) 2007-10-17 2012-04-10 Tyco Healthcare Group Lp Access port using shape altering anchor
EP2215984A1 (en) * 2007-10-17 2010-08-11 Tyco Healthcare Group LP Anchoring cannula
EP2050404A1 (en) * 2007-10-17 2009-04-22 Tyco Healthcare Group LP Anchoring Cannula
US8888810B2 (en) 2008-02-20 2014-11-18 Covidien Lp Compound barb medical device and method
US8932329B2 (en) 2008-02-20 2015-01-13 Covidien Lp Compound barb medical device and method
US9788832B2 (en) 2008-02-20 2017-10-17 Covidien Lp Compound barb medical device and method
US8323316B2 (en) 2008-10-09 2012-12-04 Covidien Lp Knotted suture end effector
US9017379B2 (en) 2008-10-09 2015-04-28 Covidien Lp Knotted suture end effector
US9023081B2 (en) 2008-10-09 2015-05-05 Covidien Lp Knotted suture end effector
US8206291B2 (en) 2009-03-27 2012-06-26 Tyco Healthcare Group Lp Portal device

Also Published As

Publication number Publication date
FR2810555A1 (en) 2001-12-28
FR2810555B1 (en) 2003-05-30
AU7065501A (en) 2002-01-08

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