US3794041A - Gastrointestinal catheter - Google Patents

Gastrointestinal catheter Download PDF

Info

Publication number
US3794041A
US3794041A US00203138A US3794041DA US3794041A US 3794041 A US3794041 A US 3794041A US 00203138 A US00203138 A US 00203138A US 3794041D A US3794041D A US 3794041DA US 3794041 A US3794041 A US 3794041A
Authority
US
United States
Prior art keywords
beads
tubular member
catheter
flexible tubular
cavity
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US00203138A
Inventor
E Frei
S Yerushalmi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yeda Research and Development Co Ltd
Original Assignee
Yeda Research and Development Co Ltd
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 Yeda Research and Development Co Ltd filed Critical Yeda Research and Development Co Ltd
Application granted granted Critical
Publication of US3794041A publication Critical patent/US3794041A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0127—Magnetic means; Magnetic markers

Definitions

  • ABSTRACT A gastrointestinal catheter of elongated shape, flexible and including ferromagnetic material enabling it, when inserted into the cavity of a body part, to be attracted by a magnet external of the body in order to manipulate the body part with the catheter.
  • the ferromagnetic material is in the form of beads enclosed within a tube of inert resilient material, or strung on a string and coated with inert material.
  • the present invention relates to catheters insertable into a body cavity, and particularly to gastrointestinal catheters for insertion into a part of the intestinal tract, such as the intestines.
  • the only effective treatment consists of massive irradiation of the afflicted organ. This applies to many cases of carcinoma of the cervix, of the bladder, of the ovary and of the uterus, and also in similar diseases.
  • One of the most serious problems of such treatment is the high sensitivity of the intestines to radiation damage, which seems to be due to the continuous shedding by the small bowel cells of its lining, and to the considerable mitotic activity of this organ.
  • means are provided according to the present invention for moving the intestines out of the path of the radiation when same is used for irradiating the afflicted organs.
  • the device according to the invention is a special catheter which is inserted into the intestines before the radiation treatment, which can be left in place for some time in this position, and which makes it possible to move the intestine out of the path of the irradiating beam.
  • the novel catheter made in accordance with the invention is flexible and of elongated shape, and includes ferromagnetic material enabling it, when inserted into the cavity of the body part, such as the intestine, to be attracted by a magnet external of the body, in order to manipulate the catheter and the body part therewith.
  • the ferromagnetic material is in the form of beads.
  • the ferromagnetic beads are enclosed within a tube of inert resilient material, and in another described embodiment they are strung on a flexible core, such as string, the beads being coated with inert material.
  • FIG. 1 is a longitudinal sectional view of a part of a catheter constructed in accordance with the invention
  • FIG. 2 illustrates a variation in the catheter construction of FIG. 1
  • FIG. 3 illustrates another form of catheter constructed in accordance with the invention.
  • FIG. 1 illustrates a catheter particularly for insertion into the intestines for moving the intestines out of the path of radiation when the same is used for irradiating an afflicted organ
  • the catheter of FIG. 1 includes. a hollow tube 2 of inert resilient material and a plurality of members or beads 4 of iron or other ferromagnetic material.
  • the length of the catheter is about one to several meters, and its diameter is between 3 to 8 mm.
  • the tubing 2 is of a biologically acceptable material of adequate resilience, such as latex, silicon rubber or the like, of adequate wall-thickness to provide some degree of rigidity, yet supple enough to make it possible to follow the turns and bends of the intestines when inserted in same.
  • a wall thickness of about 0.3 mm to L0 mm has proved satisfactory both for silicon rubber and for natural latex tubing.
  • the plurality of spherical or ellipsoid ferromagnetic beads 4 adapted to be strongly attracted by a magnet.
  • the outer diameter of these beads is chosen in such manner that they are held in place by the resiliency of the tube 2. It has been found that best results are obtained with oblong, ellipsoidal beads having a ratio of radii of about 1:2.
  • the external tube 12 includes a sequence of such iron beads 14 alternating with beads 16 of similar shape but of plastic material.
  • the beads are positioned close to each other in the tube and some space is left if desired between the beads in order to facilitate the bending of the tube. It is of course possible to use any desired sequence of ferromagnetic beads 14 and of plastic beads 16, and also to use such beads of slightly different radius or shape.
  • the catheter comprises a plurality of ferromagnetic beads 24 (if desired in a sequence with beads of plastic material) of spherical or ellipsoid shape strung on a suitable core 28 of string of adequate strength.
  • Core 28 may also be a rod or hollow member of plastic or the like of small diameter.
  • the most simple, yet satisfactory material for the spherical or ellipsoid beads is soft iron, and this is advantageously coated with a coating of plastic material 30 which is inert towards the environment of the gastrointestinal tract and which is biologically acceptable.
  • the plastic coating 30 also reduces or eliminates the danger due to secondary radiation which may result from the incidence of primary radiation on the ferromagnetic beads, if the catheter or part of it remains in the path of the primary radiation used for the treatment of the patient.
  • the foregoing constructions provide an optimum of flexibility, while at the same time avoiding a bunching together of several members of the chain-like structure, either due to the peristaltic movement or due to the combination of the peristaltic movement together with the influence of the external magnetic force used to move the part of the intestine into which the catheter is inserted from the path of the radiation used for treatment.
  • a catheter according to FIG. 1 and comprising a plurality of iron beads of ellipsoidal shape of 1:2 ratio of radii of 3 mm diameter (small radius) in a silicon rubber tubing of 0.6 mm wall thickness was inserted through the mouth or via a small incision made in the small intestine.
  • a magnetic field was applied from the outside of the body by means of a magnet having a field strength of 6,000 oersted at the face of the magnet, with a 2-inch iron core diameter, this moved the catheter together with the intestine for a sufficient distance.
  • FIG. 3 form of the catheter consisting of a plurality of plasticcoated iron ellipsoids strung on a suitable string, and satisfactory results were obtained.
  • the application of a magnetic field from outside the body, of about 6 K-oersted moved the catheter and the loop of the intestine in the desired direction.
  • the provision of a coating 30 of plastic, such as polyethylene or the like, of adequate thickness, on the iron beads prevents any secondary radiation from damaging the intestines, if the catheter is in part in the path of the radiation used for the treatment. In practice it is advisable to examine the patient by X-rays prior to the radiation treatment in order to ascertain that the loop or loops of the intestine, together with the catheter inserted thereinto, have been moved away.
  • Catheters of about 4-7 mm outer diameter may be left in the intestines for quite prolonged periods without any adverse effect. Examinations carried out after 10 days showed that no damage was caused by the catheter and that it did not interfere with the natural body activities. During such prolonged periods it is possible to carry out an intensive radiation treatment.
  • Magnetic apparatus insertable into a body cavity, for displacement of internal body organs from a region of applied radiation by means of a magnet disposed externally of the body, characterized in that it is of elongated shape, flexible and includes an elongated flexible tubular member of substantially inert resilient biologically acceptable material;
  • said magnetic apparatus being adapted when inserted into the cavity of a body part, to be uniformly and unidirectionally attracted by a magnet external of the body for desired displacement of said body part as aforesaid substantially without the application of torque to said beads.
  • said flexible tubular member also includes plastic beads alternating with and spaced from said soft iron beads and similarly fixed in said spaced relationship by said resiliency of said flexible tubular member.

Abstract

A gastrointestinal catheter of elongated shape, flexible and including ferromagnetic material enabling it, when inserted into the cavity of a body part, to be attracted by a magnet external of the body in order to manipulate the body part with the catheter. In the described embodiments, the ferromagnetic material is in the form of beads enclosed within a tube of inert resilient material, or strung on a string and coated with inert material.

Description

United States Patent [191 Frei et a1.
[ Feb. 26, 1974 GASTROINTESTINAL CATHETER [75] Inventors: Ephraim H. Frei; Shmuel Yerushalmi, both of Rehovot, Israel [73] Assignee: Yeda Research and Development Co.
Ltd., Rehovot, Israel 22 Filed: Nov. 30, 1971 21 App]. No.: 203,138
[52] US. Cl. 128/348, l28/l.3, 128/2 M [51] Int. Cl A6lm 25/00 [58] Field of Search. 128/2 M, 205 R, 1.3, 1.4, 4-6, 128/7, 8, 303 R, 348, 349 R, 350 R, 356;
[56] References Cited UNITED STATES PATENTS 3,674,014 7/1972 Tillander 128/348 X 3,043,309 7/1962 McCarthy 128/348 2,863,458 12/1958 Modny et al 128/303 R 3,206,657 9/1965 Moriya 335/303 FOREIGN PATENTS OR APPLICATIONS 1,261,276 2/1968 Germany 128/6 OTHER PUBLICATIONS Frei et al., Med. Res. Engr. Fourth Quar. 1966, pp. 1 l-l 8 Primary Examiner-Dalton L. Truluck [57] ABSTRACT A gastrointestinal catheter of elongated shape, flexible and including ferromagnetic material enabling it, when inserted into the cavity of a body part, to be attracted by a magnet external of the body in order to manipulate the body part with the catheter. In the described embodiments, the ferromagnetic material is in the form of beads enclosed within a tube of inert resilient material, or strung on a string and coated with inert material.
2 Claims, 3 Drawing Figures GASTROINTESTINAL CATHETER BACKGROUND OF THE INVENTION The present invention relates to catheters insertable into a body cavity, and particularly to gastrointestinal catheters for insertion into a part of the intestinal tract, such as the intestines.
In certain types of disease, the only effective treatment consists of massive irradiation of the afflicted organ. This applies to many cases of carcinoma of the cervix, of the bladder, of the ovary and of the uterus, and also in similar diseases. One of the most serious problems of such treatment is the high sensitivity of the intestines to radiation damage, which seems to be due to the continuous shedding by the small bowel cells of its lining, and to the considerable mitotic activity of this organ.
BRIEF SUMMARY OF THE INVENTION In order to make possible a massive irradiation of the afflicted organs, while at the same time avoiding excessive irradiation of the radiation-sensitive intestines, and especially the small bowel, means are provided according to the present invention for moving the intestines out of the path of the radiation when same is used for irradiating the afflicted organs. The device according to the invention is a special catheter which is inserted into the intestines before the radiation treatment, which can be left in place for some time in this position, and which makes it possible to move the intestine out of the path of the irradiating beam.
The novel catheter made in accordance with the invention is flexible and of elongated shape, and includes ferromagnetic material enabling it, when inserted into the cavity of the body part, such as the intestine, to be attracted by a magnet external of the body, in order to manipulate the catheter and the body part therewith.
Preferably, the ferromagnetic material is in the form of beads.
In one described embodiment, the ferromagnetic beads are enclosed within a tube of inert resilient material, and in another described embodiment they are strung on a flexible core, such as string, the beads being coated with inert material.
Further features and advantageous of the invention will be apparent from the description below.
BRIEF DESCRIPTION OF THE DRAWINGS The invention is herewith described, by way of example only, with reference to the accompanying drawings, wherein:
FIG. 1 is a longitudinal sectional view of a part of a catheter constructed in accordance with the invention;
FIG. 2 illustrates a variation in the catheter construction of FIG. 1; and
FIG. 3 illustrates another form of catheter constructed in accordance with the invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 illustrates a catheter particularly for insertion into the intestines for moving the intestines out of the path of radiation when the same is used for irradiating an afflicted organ The catheter of FIG. 1 includes. a hollow tube 2 of inert resilient material and a plurality of members or beads 4 of iron or other ferromagnetic material.
The length of the catheter is about one to several meters, and its diameter is between 3 to 8 mm. The tubing 2 is of a biologically acceptable material of adequate resilience, such as latex, silicon rubber or the like, of adequate wall-thickness to provide some degree of rigidity, yet supple enough to make it possible to follow the turns and bends of the intestines when inserted in same. A wall thickness of about 0.3 mm to L0 mm has proved satisfactory both for silicon rubber and for natural latex tubing.
Within the tubing there is provided the plurality of spherical or ellipsoid ferromagnetic beads 4 adapted to be strongly attracted by a magnet. The outer diameter of these beadsis chosen in such manner that they are held in place by the resiliency of the tube 2. It has been found that best results are obtained with oblong, ellipsoidal beads having a ratio of radii of about 1:2.
The ratio of magnetisation to the magnetic field applied shows that for prolate ellipsoids the best results are at a ratio of 1:2, as indicated above. With ellipsoids of very elongated shape there is a substantial torque, and this is a drawback for the intended use. No problem of torque exists of course with spherical beads.
Very good results were obtained with iron ellipsoids of a ratio of radii of about 1:2 of about 5 mm small diameter, inserted in a tube of 7 mm outer diameter, of 1 mm wall-thickness, and of 2 meter length.
According to a further embodiment of the invention as shown in FIG. 2; the external tube 12 includes a sequence of such iron beads 14 alternating with beads 16 of similar shape but of plastic material. The beads are positioned close to each other in the tube and some space is left if desired between the beads in order to facilitate the bending of the tube. It is of course possible to use any desired sequence of ferromagnetic beads 14 and of plastic beads 16, and also to use such beads of slightly different radius or shape.
According to a further embodiment of the invention as illustrated in FIG. 3, the catheter comprises a plurality of ferromagnetic beads 24 (if desired in a sequence with beads of plastic material) of spherical or ellipsoid shape strung on a suitable core 28 of string of adequate strength. Core 28 may also be a rod or hollow member of plastic or the like of small diameter. The most simple, yet satisfactory material for the spherical or ellipsoid beads is soft iron, and this is advantageously coated with a coating of plastic material 30 which is inert towards the environment of the gastrointestinal tract and which is biologically acceptable. The plastic coating 30 also reduces or eliminates the danger due to secondary radiation which may result from the incidence of primary radiation on the ferromagnetic beads, if the catheter or part of it remains in the path of the primary radiation used for the treatment of the patient.
The foregoing constructions provide an optimum of flexibility, while at the same time avoiding a bunching together of several members of the chain-like structure, either due to the peristaltic movement or due to the combination of the peristaltic movement together with the influence of the external magnetic force used to move the part of the intestine into which the catheter is inserted from the path of the radiation used for treatment.
First experiments were made by the direct introduction of ferrite powder into the intestines of a dog. This experiment proved that it is feasible to move the intestines by the application of an external magnetic field on the ferrite contained in same. The loops of the intestines could thus be moved sufficiently for the intended results.
After having proved the feasibility of such movement, experiments were continued with gastrointestinal catheters made of ferromagnetic beads. In animal experiments the catheter was inserted and soft X-rays to about 40 KV were used for monitoring the movement of the intestinal loops due to the application of an external magnetic field on such catheter. With guinea pigs a loop of the intestine was moved by means of an external horseshoe magnet and pulled towards the magnet in such manner that the external skin was raised appreciably and pulled into the gap of the horseshoe magnet. The animal was drugged and maintained in this position for hours after which the magnet and the catheter were removed. Histological examination showed no damage to the intestinal tissue. The natural movement of the material in the intestines was not affected by the presence of the catheter.
Further experiments were carried out with dogs. A catheter according to FIG. 1 and comprising a plurality of iron beads of ellipsoidal shape of 1:2 ratio of radii of 3 mm diameter (small radius) in a silicon rubber tubing of 0.6 mm wall thickness was inserted through the mouth or via a small incision made in the small intestine. When a magnetic field was applied from the outside of the body by means of a magnet having a field strength of 6,000 oersted at the face of the magnet, with a 2-inch iron core diameter, this moved the catheter together with the intestine for a sufficient distance.
Similar experiments were made with the FIG. 3 form of the catheter, consisting of a plurality of plasticcoated iron ellipsoids strung on a suitable string, and satisfactory results were obtained.
A number of experiments were carried out with humans. A gastrointestinal catheter according to the FIG. 1 form of 1 meter length and 3-7 mm outer diameter of the tubing ensheathing the iron beads, was inserted into the intestines. The application of a magnetic field from outside the body, of about 6 K-oersted moved the catheter and the loop of the intestine in the desired direction.
In the FIG. 3 form, the provision of a coating 30 of plastic, such as polyethylene or the like, of adequate thickness, on the iron beads prevents any secondary radiation from damaging the intestines, if the catheter is in part in the path of the radiation used for the treatment. In practice it is advisable to examine the patient by X-rays prior to the radiation treatment in order to ascertain that the loop or loops of the intestine, together with the catheter inserted thereinto, have been moved away.
In guinea pig experiments Alnico 5 magnets were used as the external magnets for attracting the catheter and the body part therein. With humans it is advisable to use superconducting magnets of great field strength and comparatively small size.
Catheters of about 4-7 mm outer diameter may be left in the intestines for quite prolonged periods without any adverse effect. Examinations carried out after 10 days showed that no damage was caused by the catheter and that it did not interfere with the natural body activities. During such prolonged periods it is possible to carry out an intensive radiation treatment.
It is clear that the above description is by way of example only and that many modifications, changes and other applications of the catheters described may be made.
What is claimed is:
1. Magnetic apparatus insertable into a body cavity, for displacement of internal body organs from a region of applied radiation by means of a magnet disposed externally of the body, characterized in that it is of elongated shape, flexible and includes an elongated flexible tubular member of substantially inert resilient biologically acceptable material;
a plurality of ellipsoidal beads of soft iron having major and minor axes substantially in a 2:1 ratio respectively, axially disposed with their major axes parallel to the longitudinal axis of said tubular member and in closely adjacent spaced relationship therein over a substantial length thereof, said soft iron ellipsoidal beads being fixed in said spaced relationship by said resiliency of said flexible tubular member;
said magnetic apparatus being adapted when inserted into the cavity of a body part, to be uniformly and unidirectionally attracted by a magnet external of the body for desired displacement of said body part as aforesaid substantially without the application of torque to said beads.
2. Magnetic apparatus insertable into a body cavity, for displacement of internal body organs as defined in claim 1, wherein said flexible tubular member also includes plastic beads alternating with and spaced from said soft iron beads and similarly fixed in said spaced relationship by said resiliency of said flexible tubular member.

Claims (2)

1. Magnetic apparatus insertable into a body cavity, for displacement of internal body organs from a region of applied radiation by means of a magnet disposed externally of the body, characterized in that it is of elongated shape, flexible and includes an elongated flexible tubular member of substantially inert resilient biologically acceptable material; a plurality of ellipsoidal beads of soft iron having major and minor axes substantially in a 2:1 ratio respectively, axially disposed with their major axes parallel to the longitudinal axis of said tubular membEr and in closely adjacent spaced relationship therein over a substantial length thereof, said soft iron ellipsoidal beads being fixed in said spaced relationship by said resiliency of said flexible tubular member; said magnetic apparatus being adapted when inserted into the cavity of a body part, to be uniformly and unidirectionally attracted by a magnet external of the body for desired displacement of said body part as aforesaid substantially without the application of torque to said beads.
2. Magnetic apparatus insertable into a body cavity, for displacement of internal body organs as defined in claim 1, wherein said flexible tubular member also includes plastic beads alternating with and spaced from said soft iron beads and similarly fixed in said spaced relationship by said resiliency of said flexible tubular member.
US00203138A 1971-11-30 1971-11-30 Gastrointestinal catheter Expired - Lifetime US3794041A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20313871A 1971-11-30 1971-11-30

Publications (1)

Publication Number Publication Date
US3794041A true US3794041A (en) 1974-02-26

Family

ID=22752674

Family Applications (1)

Application Number Title Priority Date Filing Date
US00203138A Expired - Lifetime US3794041A (en) 1971-11-30 1971-11-30 Gastrointestinal catheter

Country Status (1)

Country Link
US (1) US3794041A (en)

Cited By (85)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941119A (en) * 1973-07-20 1976-03-02 Mario Corrales Means for introducing and guiding objects into body cavities and blood vessels
US3961632A (en) * 1974-12-13 1976-06-08 Moossun Mohamed H Stomach intubation and catheter placement system
US4005699A (en) * 1974-10-09 1977-02-01 Louis Bucalo Methods and apparatus for use in magnetic treatment of the body
US4024855A (en) * 1974-12-30 1977-05-24 Louis Bucalo Magnetic filamentary structure and method for using the same
US4063561A (en) * 1975-08-25 1977-12-20 The Signal Companies, Inc. Direction control device for endotracheal tube
US4111190A (en) * 1976-11-11 1978-09-05 Jane Plumridge Medical applicator assembly for chain cystourethrographic procedure
US4197840A (en) * 1975-11-06 1980-04-15 Bbc Brown Boveri & Company, Limited Permanent magnet device for implantation
US4197846A (en) * 1974-10-09 1980-04-15 Louis Bucalo Method for structure for situating in a living body agents for treating the body
US4294260A (en) * 1979-06-18 1981-10-13 Olympia Radiological Associates Cystourethrographic examination chain
US4303062A (en) * 1980-07-09 1981-12-01 Intervet, Inc. Therapeutic magnet
US4364377A (en) * 1979-02-02 1982-12-21 Walker Scientific, Inc. Magnetic field hemostasis
US4410320A (en) * 1981-08-28 1983-10-18 Ethox Corp. Weighted enteric feeding tube
US4545081A (en) * 1981-06-29 1985-10-08 Jack Nestor Semi-rigid penile prosthesis with separable members and posture control
GB2186192A (en) * 1985-12-17 1987-08-12 Mccormick Lab Inc Catheter and method of making same
EP0232968A2 (en) * 1986-02-03 1987-08-19 Mountpelier Investments, S.A. Apparatus for placement of and in combination with a pliable catheter
US4809713A (en) * 1987-10-28 1989-03-07 Joseph Grayzel Catheter with magnetic fixation
US5042475A (en) * 1988-09-30 1991-08-27 Portex, Inc. Hinged tracheostomy tube obturator
DE4014947A1 (en) * 1990-05-10 1991-11-14 Wolfgang Dr Med Ram Flexible catheter for diagnostic or therapeutic purposes - has very small guiding magnet of high remanence at distal end and extra corporal control magnets
US5125888A (en) * 1990-01-10 1992-06-30 University Of Virginia Alumni Patents Foundation Magnetic stereotactic system for treatment delivery
WO1993000124A1 (en) * 1988-09-30 1993-01-07 Smiths Industries Medical Systems, Inc. A hinged tracheostomy tube obturator
US5361754A (en) * 1993-01-25 1994-11-08 Mallinckrodt Medical, Inc. Apparatus and method for connecting a tracheostomy tube to a neckplate
AU659375B2 (en) * 1991-06-21 1995-05-11 Smiths Industries Medical Systems, Inc. Hinged tracheostomy tube obturator
US5415165A (en) * 1986-02-27 1995-05-16 Mountpelier Investments Tonometric catheter combination
US5429131A (en) * 1994-02-25 1995-07-04 The Regents Of The University Of California Magnetized electrode tip catheter
US5431640A (en) * 1994-11-09 1995-07-11 The Medical Center Of Central Georgia Method and apparatus for duodenal intubation of a patient
US5433216A (en) * 1993-06-14 1995-07-18 Mountpelier Investments, S.A. Intra-abdominal pressure measurement apparatus and method
US5443478A (en) * 1992-09-02 1995-08-22 Board Of Regents, The University Of Texas System Multi-element intravascular occlusion device
US5456251A (en) * 1988-08-26 1995-10-10 Mountpelier Investments, S.A. Remote sensing tonometric catheter apparatus and method
US5527338A (en) * 1992-09-02 1996-06-18 Board Of Regents, The University Of Texas System Intravascular device
US5526809A (en) * 1982-03-22 1996-06-18 Mountpelier Investments, S.A. Hollow viscous and soild organ tonometry
US5529568A (en) * 1994-03-18 1996-06-25 Surgery Futures Research, Inc. Magnetic operating table
US5546937A (en) * 1993-12-13 1996-08-20 Stuart; J. Michael Obturator and tracheostomy tube containing the obturator
WO1996032075A1 (en) * 1995-04-08 1996-10-17 Iradj Hessabi Device for aiding oral administration, especially to animals
US5645065A (en) * 1991-09-04 1997-07-08 Navion Biomedical Corporation Catheter depth, position and orientation location system
WO1997034552A1 (en) * 1996-03-19 1997-09-25 Sherwood Medical Company Gastrointestinal-type tube insertion or removal device
US5788631A (en) * 1982-03-22 1998-08-04 Instrumentarium Corporation Hollow viscus and solid organ tonometry
US5851218A (en) * 1996-09-03 1998-12-22 Lev; Shlomo Annular catheter method of assembling and method of using the same
DE19733889A1 (en) * 1997-08-05 1999-02-11 Kadalie Clemens Themba Representation of organ systems during control and guidance of e.g. guide wires, probes, catheters and endoscopes
US5951566A (en) * 1997-01-02 1999-09-14 Lev; Shlomo Annular catheter
WO1999056813A1 (en) 1998-05-05 1999-11-11 Sabry Gabriel Method and apparatus for intubation of a patient
US6010453A (en) * 1982-03-22 2000-01-04 Instrumentarium Corporation Tonometric catheter combination
US6045536A (en) * 1999-02-24 2000-04-04 Sherwood Services, A.G. Securing device for a low profile gastrostomy tube
US6146396A (en) * 1999-03-05 2000-11-14 Board Of Regents, The University Of Texas System Declotting method and apparatus
US6273904B1 (en) 1999-03-02 2001-08-14 Light Sciences Corporation Polymer battery for internal light device
US6368338B1 (en) 1999-03-05 2002-04-09 Board Of Regents, The University Of Texas Occlusion method and apparatus
US6542766B2 (en) * 1999-05-13 2003-04-01 Andrew F. Hall Medical devices adapted for magnetic navigation with magnetic fields and gradients
US20030153827A1 (en) * 1998-02-09 2003-08-14 Ritter Rogers C. Method and device for locating magnetic implant by source field
US20030171783A1 (en) * 2002-03-08 2003-09-11 Quallion Llc Battery terminal sealing and supporting device and method
US20040019378A1 (en) * 2001-04-24 2004-01-29 Hlavka Edwin J. Method and apparatus for performing catheter-based annuloplasty
US20040087876A1 (en) * 2002-11-05 2004-05-06 Scimed Life Systems, Inc. Medical device having flexible distal tip
US20040172046A1 (en) * 2002-10-21 2004-09-02 Hlavka Edwin J. Method and apparatus for performing catheter-based annuloplasty using local plications
US20050021100A1 (en) * 2001-11-07 2005-01-27 Quallion Llc Implantable medical power module
US20050119734A1 (en) * 2002-10-21 2005-06-02 Spence Paul A. Tissue fastening systems and methods utilizing magnetic guidance
US20050125011A1 (en) * 2001-04-24 2005-06-09 Spence Paul A. Tissue fastening systems and methods utilizing magnetic guidance
US20050137700A1 (en) * 2003-12-23 2005-06-23 Spence Paul A. Tissue fastening systems and methods utilizing magnetic guidance
US20060069429A1 (en) * 2001-04-24 2006-03-30 Spence Paul A Tissue fastening systems and methods utilizing magnetic guidance
US20060155303A1 (en) * 2002-04-09 2006-07-13 Andras Konya Occlusion method and apparatus
US20060173407A1 (en) * 2005-01-13 2006-08-03 Shaughnessy Michael C Tubing assembly and signal generator placement control device and method for use with catheter guidance systems
US20070010857A1 (en) * 2005-07-05 2007-01-11 Mitralign, Inc. Tissue anchor, anchoring system and methods of using the same
US20070021645A1 (en) * 2003-07-16 2007-01-25 Joachim Zimmerman Medical device
US20070135802A1 (en) * 2005-12-14 2007-06-14 Olympus Medical Systems Corp. Method of lifting diseased part, tissue lifting system, and indwelling tool
US20070197906A1 (en) * 2006-01-24 2007-08-23 Ritter Rogers C Magnetic field shape-adjustable medical device and method of using the same
US20080097475A1 (en) * 2006-09-08 2008-04-24 Viasys Holdings, Inc. Medical device position guidance system with wireless connectivity between a noninvasive device and an invasive device
US20080171907A1 (en) * 2007-01-12 2008-07-17 Ethicon Endo-Surgery, Inc. Magnetic Tissue Grasping
US20080228165A1 (en) * 2007-03-13 2008-09-18 Mitralign, Inc. Systems and methods for introducing elements into tissue
US20080228267A1 (en) * 2003-12-23 2008-09-18 Mitralign, Inc. Devices and methods for introducing elements into tissue
US20080228198A1 (en) * 2007-03-13 2008-09-18 Mitralign, Inc. Suture cutter and method of cutting suture
US20090062772A1 (en) * 2007-08-30 2009-03-05 Syncro Medical Innovations, Inc. Guided catheter with removable magnetic guide
US20100145147A1 (en) * 2008-09-02 2010-06-10 Syncro Medical Innovations, Inc. Magnetic device for guiding catheter and method of use therefor
US7744596B2 (en) * 2005-10-13 2010-06-29 Boston Scientific Scimed, Inc. Magnetically augmented radio frequency ablation
DE102010036806A1 (en) * 2010-08-02 2012-02-02 Sun Lung Gear Works Co., Ltd. Apparatus for magnetic cleaning of contaminated oil in e.g. gearbox, has handle comprising end connected with flexible disk-shaped or rod-shaped magnetic unit, where supporting element is provided at outer side of magnetic unit
GB2502383A (en) * 2012-05-21 2013-11-27 Adey Holdings 2008 Ltd Separator device
US9028441B2 (en) 2011-09-08 2015-05-12 Corpak Medsystems, Inc. Apparatus and method used with guidance system for feeding and suctioning
US9149740B2 (en) 2010-12-01 2015-10-06 Adey Holdings (2008) Limited Water and dirt separator
US9358112B2 (en) 2001-04-24 2016-06-07 Mitralign, Inc. Method and apparatus for catheter-based annuloplasty using local plications
US9463471B2 (en) 2010-12-01 2016-10-11 Adey Holdings (2008) Limited Water and dirt separator
IT201700002679A1 (en) * 2017-01-12 2018-07-12 Endostart S R L Gia Denominata Euro Endoscopy S R L Endoscopic guide for catheters or endoscopes and endoscopy system including said guide.
WO2018232190A1 (en) * 2017-06-14 2018-12-20 The University Of Vermont And State Agricultural College Peritoneal dialysis (pd) catheter weighted anchor
US10918373B2 (en) 2013-08-31 2021-02-16 Edwards Lifesciences Corporation Devices and methods for locating and implanting tissue anchors at mitral valve commissure
WO2021035112A1 (en) * 2019-08-21 2021-02-25 Bn Intellectual Properties, Inc. Endotracheal tube sound
WO2022232325A1 (en) * 2021-04-28 2022-11-03 Bard Access Systems, Inc. Magnetically trackable stylets and methods thereof
US11529070B2 (en) 2007-11-26 2022-12-20 C. R. Bard, Inc. System and methods for guiding a medical instrument
US11621518B2 (en) 2018-10-16 2023-04-04 Bard Access Systems, Inc. Safety-equipped connection systems and methods thereof for establishing electrical connections
US11660190B2 (en) 2007-03-13 2023-05-30 Edwards Lifesciences Corporation Tissue anchors, systems and methods, and devices
US11707205B2 (en) 2007-11-26 2023-07-25 C. R. Bard, Inc. Integrated system for intravascular placement of a catheter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2863458A (en) * 1957-09-04 1958-12-09 Michael T Modny Vein stripper and a method of stripping veins
US3043309A (en) * 1959-09-29 1962-07-10 Avco Corp Method of performing intestinal intubation
US3206657A (en) * 1961-04-04 1965-09-14 Moriya Saburo Miyata Magnet assembly for filtering
DE1261276B (en) * 1965-07-21 1968-02-15 Storz Karl Device for steering a flexible shaft, in particular an endoscope shaft, in body cavities
US3674014A (en) * 1969-10-28 1972-07-04 Astra Meditec Ab Magnetically guidable catheter-tip and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2863458A (en) * 1957-09-04 1958-12-09 Michael T Modny Vein stripper and a method of stripping veins
US3043309A (en) * 1959-09-29 1962-07-10 Avco Corp Method of performing intestinal intubation
US3206657A (en) * 1961-04-04 1965-09-14 Moriya Saburo Miyata Magnet assembly for filtering
DE1261276B (en) * 1965-07-21 1968-02-15 Storz Karl Device for steering a flexible shaft, in particular an endoscope shaft, in body cavities
US3674014A (en) * 1969-10-28 1972-07-04 Astra Meditec Ab Magnetically guidable catheter-tip and method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Frei et al., Med. Res. Engr. Fourth Quar. 1966, pp. 11 18 *

Cited By (142)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941119A (en) * 1973-07-20 1976-03-02 Mario Corrales Means for introducing and guiding objects into body cavities and blood vessels
US4005699A (en) * 1974-10-09 1977-02-01 Louis Bucalo Methods and apparatus for use in magnetic treatment of the body
US4197846A (en) * 1974-10-09 1980-04-15 Louis Bucalo Method for structure for situating in a living body agents for treating the body
US3961632A (en) * 1974-12-13 1976-06-08 Moossun Mohamed H Stomach intubation and catheter placement system
US4024855A (en) * 1974-12-30 1977-05-24 Louis Bucalo Magnetic filamentary structure and method for using the same
US4063561A (en) * 1975-08-25 1977-12-20 The Signal Companies, Inc. Direction control device for endotracheal tube
US4197840A (en) * 1975-11-06 1980-04-15 Bbc Brown Boveri & Company, Limited Permanent magnet device for implantation
US4111190A (en) * 1976-11-11 1978-09-05 Jane Plumridge Medical applicator assembly for chain cystourethrographic procedure
US4364377A (en) * 1979-02-02 1982-12-21 Walker Scientific, Inc. Magnetic field hemostasis
US4294260A (en) * 1979-06-18 1981-10-13 Olympia Radiological Associates Cystourethrographic examination chain
US4303062A (en) * 1980-07-09 1981-12-01 Intervet, Inc. Therapeutic magnet
US4545081A (en) * 1981-06-29 1985-10-08 Jack Nestor Semi-rigid penile prosthesis with separable members and posture control
US4410320A (en) * 1981-08-28 1983-10-18 Ethox Corp. Weighted enteric feeding tube
US5788631A (en) * 1982-03-22 1998-08-04 Instrumentarium Corporation Hollow viscus and solid organ tonometry
US5526809A (en) * 1982-03-22 1996-06-18 Mountpelier Investments, S.A. Hollow viscous and soild organ tonometry
US6010453A (en) * 1982-03-22 2000-01-04 Instrumentarium Corporation Tonometric catheter combination
GB2186192A (en) * 1985-12-17 1987-08-12 Mccormick Lab Inc Catheter and method of making same
GB2186192B (en) * 1985-12-17 1990-01-17 Mccormick Lab Inc Catheter and method of making same
EP0232968A2 (en) * 1986-02-03 1987-08-19 Mountpelier Investments, S.A. Apparatus for placement of and in combination with a pliable catheter
EP0232968A3 (en) * 1986-02-03 1988-06-15 Richard G. Fiddian-Green Apparatus and method for sustaining vitality of organs of the gastrointestinal tract
US5415165A (en) * 1986-02-27 1995-05-16 Mountpelier Investments Tonometric catheter combination
US4809713A (en) * 1987-10-28 1989-03-07 Joseph Grayzel Catheter with magnetic fixation
US5456251A (en) * 1988-08-26 1995-10-10 Mountpelier Investments, S.A. Remote sensing tonometric catheter apparatus and method
US6334064B1 (en) 1988-08-26 2001-12-25 Instrumentarium Corp. Remote sensing tonometric catheter apparatus and method
US5042475A (en) * 1988-09-30 1991-08-27 Portex, Inc. Hinged tracheostomy tube obturator
US5222487A (en) * 1988-09-30 1993-06-29 Smiths Industries Medical Systems, Inc. Hinged tracheostomy tube obturator
WO1993000124A1 (en) * 1988-09-30 1993-01-07 Smiths Industries Medical Systems, Inc. A hinged tracheostomy tube obturator
US5779694A (en) * 1990-01-10 1998-07-14 The University Of Virginia Alumni Patents Foundation Magnetic stereotactic system for treatment delivery
US6216030B1 (en) 1990-01-10 2001-04-10 The University Of Virginia Alumni Patents Foundation Magnetic stereotactic system for treatment delivery
US5125888A (en) * 1990-01-10 1992-06-30 University Of Virginia Alumni Patents Foundation Magnetic stereotactic system for treatment delivery
DE4014947A1 (en) * 1990-05-10 1991-11-14 Wolfgang Dr Med Ram Flexible catheter for diagnostic or therapeutic purposes - has very small guiding magnet of high remanence at distal end and extra corporal control magnets
AU659375B2 (en) * 1991-06-21 1995-05-11 Smiths Industries Medical Systems, Inc. Hinged tracheostomy tube obturator
US5645065A (en) * 1991-09-04 1997-07-08 Navion Biomedical Corporation Catheter depth, position and orientation location system
US5693067A (en) * 1992-09-02 1997-12-02 Board Of Regents, The University Of Texas System Intravascular device
US5443478A (en) * 1992-09-02 1995-08-22 Board Of Regents, The University Of Texas System Multi-element intravascular occlusion device
US5925062A (en) * 1992-09-02 1999-07-20 Board Of Regents, The University Of Texas System Intravascular device
USRE38972E1 (en) * 1992-09-02 2006-02-07 Board Of Regents, The University Of Texas System Intravascular device
US5527338A (en) * 1992-09-02 1996-06-18 Board Of Regents, The University Of Texas System Intravascular device
USRE43030E1 (en) 1992-09-02 2011-12-13 Board Of Regents, The University Of Texas System Intravascular device
US5778877A (en) * 1993-01-25 1998-07-14 Mallinckrodt Medical, Inc. Apparatus and method for connecting a tracheostomy tube to a neckplate
US5361754A (en) * 1993-01-25 1994-11-08 Mallinckrodt Medical, Inc. Apparatus and method for connecting a tracheostomy tube to a neckplate
US5433216A (en) * 1993-06-14 1995-07-18 Mountpelier Investments, S.A. Intra-abdominal pressure measurement apparatus and method
US5546937A (en) * 1993-12-13 1996-08-20 Stuart; J. Michael Obturator and tracheostomy tube containing the obturator
US5429131A (en) * 1994-02-25 1995-07-04 The Regents Of The University Of California Magnetized electrode tip catheter
US5529568A (en) * 1994-03-18 1996-06-25 Surgery Futures Research, Inc. Magnetic operating table
EP0773005A1 (en) 1994-03-18 1997-05-14 Surgery Futures Research Inc. Magnetic operation table
US5593379A (en) * 1994-03-18 1997-01-14 Surgery Futures Research, Inc. Magnetic operating table
US5431640A (en) * 1994-11-09 1995-07-11 The Medical Center Of Central Georgia Method and apparatus for duodenal intubation of a patient
WO1996032075A1 (en) * 1995-04-08 1996-10-17 Iradj Hessabi Device for aiding oral administration, especially to animals
WO1997034552A1 (en) * 1996-03-19 1997-09-25 Sherwood Medical Company Gastrointestinal-type tube insertion or removal device
US5989225A (en) * 1996-03-19 1999-11-23 Sherwood Services Ag Gastrointestinal-type tube insertion or removal device
US5851218A (en) * 1996-09-03 1998-12-22 Lev; Shlomo Annular catheter method of assembling and method of using the same
US5951566A (en) * 1997-01-02 1999-09-14 Lev; Shlomo Annular catheter
DE19733889A1 (en) * 1997-08-05 1999-02-11 Kadalie Clemens Themba Representation of organ systems during control and guidance of e.g. guide wires, probes, catheters and endoscopes
US20070038074A1 (en) * 1998-02-09 2007-02-15 Ritter Rogers C Method and device for locating magnetic implant source field
US7010338B2 (en) 1998-02-09 2006-03-07 Stereotaxis, Inc. Device for locating magnetic implant by source field
US20030153827A1 (en) * 1998-02-09 2003-08-14 Ritter Rogers C. Method and device for locating magnetic implant by source field
WO1999056813A1 (en) 1998-05-05 1999-11-11 Sabry Gabriel Method and apparatus for intubation of a patient
US6045536A (en) * 1999-02-24 2000-04-04 Sherwood Services, A.G. Securing device for a low profile gastrostomy tube
US6273904B1 (en) 1999-03-02 2001-08-14 Light Sciences Corporation Polymer battery for internal light device
US6368338B1 (en) 1999-03-05 2002-04-09 Board Of Regents, The University Of Texas Occlusion method and apparatus
US6994717B2 (en) 1999-03-05 2006-02-07 Board Of Regents, The University Of Texas Systems Occlusion method and apparatus
US6146396A (en) * 1999-03-05 2000-11-14 Board Of Regents, The University Of Texas System Declotting method and apparatus
US20020156499A1 (en) * 1999-03-05 2002-10-24 Andras Konya Occlusion method and apparatus
US6542766B2 (en) * 1999-05-13 2003-04-01 Andrew F. Hall Medical devices adapted for magnetic navigation with magnetic fields and gradients
US9358112B2 (en) 2001-04-24 2016-06-07 Mitralign, Inc. Method and apparatus for catheter-based annuloplasty using local plications
US20050125011A1 (en) * 2001-04-24 2005-06-09 Spence Paul A. Tissue fastening systems and methods utilizing magnetic guidance
US20040019378A1 (en) * 2001-04-24 2004-01-29 Hlavka Edwin J. Method and apparatus for performing catheter-based annuloplasty
US20060069429A1 (en) * 2001-04-24 2006-03-30 Spence Paul A Tissue fastening systems and methods utilizing magnetic guidance
US7009362B2 (en) 2001-11-07 2006-03-07 Quallion Llc Standalone implantable medical power module
US7486048B2 (en) 2001-11-07 2009-02-03 Quallion Llc Implantable power module for powering a medical device
US6894456B2 (en) 2001-11-07 2005-05-17 Quallion Llc Implantable medical power module
US20050021100A1 (en) * 2001-11-07 2005-01-27 Quallion Llc Implantable medical power module
US20030171783A1 (en) * 2002-03-08 2003-09-11 Quallion Llc Battery terminal sealing and supporting device and method
US7003356B2 (en) 2002-03-08 2006-02-21 Quallion Llc Battery terminal sealing and supporting device and method
US20060155303A1 (en) * 2002-04-09 2006-07-13 Andras Konya Occlusion method and apparatus
US10028833B2 (en) 2002-10-21 2018-07-24 Mitralign, Inc. Tissue fastening systems and methods utilizing magnetic guidance
US20040172046A1 (en) * 2002-10-21 2004-09-02 Hlavka Edwin J. Method and apparatus for performing catheter-based annuloplasty using local plications
US20050119734A1 (en) * 2002-10-21 2005-06-02 Spence Paul A. Tissue fastening systems and methods utilizing magnetic guidance
US20050184122A1 (en) * 2002-10-21 2005-08-25 Mitralign, Inc. Method and apparatus for performing catheter-based annuloplasty using local plications
US8979923B2 (en) 2002-10-21 2015-03-17 Mitralign, Inc. Tissue fastening systems and methods utilizing magnetic guidance
US8460371B2 (en) 2002-10-21 2013-06-11 Mitralign, Inc. Method and apparatus for performing catheter-based annuloplasty using local plications
US20050119735A1 (en) * 2002-10-21 2005-06-02 Spence Paul A. Tissue fastening systems and methods utilizing magnetic guidance
US20040087876A1 (en) * 2002-11-05 2004-05-06 Scimed Life Systems, Inc. Medical device having flexible distal tip
US7993285B2 (en) * 2002-11-05 2011-08-09 Boston Scientific Scimed, Inc. Medical device having flexible distal tip
US20070021645A1 (en) * 2003-07-16 2007-01-25 Joachim Zimmerman Medical device
US20050137700A1 (en) * 2003-12-23 2005-06-23 Spence Paul A. Tissue fastening systems and methods utilizing magnetic guidance
US8864822B2 (en) 2003-12-23 2014-10-21 Mitralign, Inc. Devices and methods for introducing elements into tissue
US20070080188A1 (en) * 2003-12-23 2007-04-12 Mitralign, Inc. Tissue fastening systems and methods
US20050267571A1 (en) * 2003-12-23 2005-12-01 Spence Paul A Tissue fastening systems and methods utilizing magnetic guidance
US20070112424A1 (en) * 2003-12-23 2007-05-17 Mitralign, Inc. Catheter based tissue fastening systems and methods
US20080228267A1 (en) * 2003-12-23 2008-09-18 Mitralign, Inc. Devices and methods for introducing elements into tissue
US8142493B2 (en) 2003-12-23 2012-03-27 Mitralign, Inc. Method of heart valve repair
US7166127B2 (en) 2003-12-23 2007-01-23 Mitralign, Inc. Tissue fastening systems and methods utilizing magnetic guidance
US7431726B2 (en) 2003-12-23 2008-10-07 Mitralign, Inc. Tissue fastening systems and methods utilizing magnetic guidance
US9889277B2 (en) 2005-01-13 2018-02-13 Avent, Inc. Tubing assembly and signal generator placement control device and method for use with catheter guidance systems
US9131956B2 (en) 2005-01-13 2015-09-15 Corpak Medsystems, Inc. Tubing assembly and signal generator placement control device and method for use with catheter guidance systems
US20060173407A1 (en) * 2005-01-13 2006-08-03 Shaughnessy Michael C Tubing assembly and signal generator placement control device and method for use with catheter guidance systems
US9579488B2 (en) 2005-01-13 2017-02-28 Corpak Medsystems, Inc. Tubing assembly and signal generator placement control device and method for use with catheter guidance systems
US10549074B2 (en) 2005-01-13 2020-02-04 Avent, Inc. Tubing assembly and signal generation placement device and method for use with catheter guidance systems
US7976518B2 (en) 2005-01-13 2011-07-12 Corpak Medsystems, Inc. Tubing assembly and signal generator placement control device and method for use with catheter guidance systems
US20070010857A1 (en) * 2005-07-05 2007-01-11 Mitralign, Inc. Tissue anchor, anchoring system and methods of using the same
US10695046B2 (en) 2005-07-05 2020-06-30 Edwards Lifesciences Corporation Tissue anchor and anchoring system
US9814454B2 (en) 2005-07-05 2017-11-14 Mitralign, Inc. Tissue anchor and anchoring system
US9259218B2 (en) 2005-07-05 2016-02-16 Mitralign, Inc. Tissue anchor and anchoring system
US8951285B2 (en) 2005-07-05 2015-02-10 Mitralign, Inc. Tissue anchor, anchoring system and methods of using the same
US20090076547A1 (en) * 2005-07-05 2009-03-19 Mitralign, Inc. Tissue anchor and anchoring system
US8951286B2 (en) 2005-07-05 2015-02-10 Mitralign, Inc. Tissue anchor and anchoring system
US7744596B2 (en) * 2005-10-13 2010-06-29 Boston Scientific Scimed, Inc. Magnetically augmented radio frequency ablation
US10779809B2 (en) 2005-12-14 2020-09-22 Olympus Corporation Method of lifting diseased part, tissue lifting system, and indwelling tool
US20070135802A1 (en) * 2005-12-14 2007-06-14 Olympus Medical Systems Corp. Method of lifting diseased part, tissue lifting system, and indwelling tool
US20070197906A1 (en) * 2006-01-24 2007-08-23 Ritter Rogers C Magnetic field shape-adjustable medical device and method of using the same
US9687174B2 (en) 2006-09-08 2017-06-27 Corpak Medsystems, Inc. Medical device position guidance system with wireless connectivity between a noninvasive and an invasive device
US20080097475A1 (en) * 2006-09-08 2008-04-24 Viasys Holdings, Inc. Medical device position guidance system with wireless connectivity between a noninvasive device and an invasive device
US8197494B2 (en) 2006-09-08 2012-06-12 Corpak Medsystems, Inc. Medical device position guidance system with wireless connectivity between a noninvasive device and an invasive device
US20080171907A1 (en) * 2007-01-12 2008-07-17 Ethicon Endo-Surgery, Inc. Magnetic Tissue Grasping
US9750608B2 (en) 2007-03-13 2017-09-05 Mitralign, Inc. Systems and methods for introducing elements into tissue
US20080228165A1 (en) * 2007-03-13 2008-09-18 Mitralign, Inc. Systems and methods for introducing elements into tissue
US20080228198A1 (en) * 2007-03-13 2008-09-18 Mitralign, Inc. Suture cutter and method of cutting suture
US9358111B2 (en) 2007-03-13 2016-06-07 Mitralign, Inc. Tissue anchors, systems and methods, and devices
US8911461B2 (en) 2007-03-13 2014-12-16 Mitralign, Inc. Suture cutter and method of cutting suture
US11660190B2 (en) 2007-03-13 2023-05-30 Edwards Lifesciences Corporation Tissue anchors, systems and methods, and devices
US20080228265A1 (en) * 2007-03-13 2008-09-18 Mitralign, Inc. Tissue anchors, systems and methods, and devices
US8845723B2 (en) 2007-03-13 2014-09-30 Mitralign, Inc. Systems and methods for introducing elements into tissue
US20090062772A1 (en) * 2007-08-30 2009-03-05 Syncro Medical Innovations, Inc. Guided catheter with removable magnetic guide
US11529070B2 (en) 2007-11-26 2022-12-20 C. R. Bard, Inc. System and methods for guiding a medical instrument
US11707205B2 (en) 2007-11-26 2023-07-25 C. R. Bard, Inc. Integrated system for intravascular placement of a catheter
US11779240B2 (en) 2007-11-26 2023-10-10 C. R. Bard, Inc. Systems and methods for breaching a sterile field for intravascular placement of a catheter
US20100145147A1 (en) * 2008-09-02 2010-06-10 Syncro Medical Innovations, Inc. Magnetic device for guiding catheter and method of use therefor
DE102010036806A1 (en) * 2010-08-02 2012-02-02 Sun Lung Gear Works Co., Ltd. Apparatus for magnetic cleaning of contaminated oil in e.g. gearbox, has handle comprising end connected with flexible disk-shaped or rod-shaped magnetic unit, where supporting element is provided at outer side of magnetic unit
US9463471B2 (en) 2010-12-01 2016-10-11 Adey Holdings (2008) Limited Water and dirt separator
US9149740B2 (en) 2010-12-01 2015-10-06 Adey Holdings (2008) Limited Water and dirt separator
US9028441B2 (en) 2011-09-08 2015-05-12 Corpak Medsystems, Inc. Apparatus and method used with guidance system for feeding and suctioning
US9918907B2 (en) 2011-09-08 2018-03-20 Avent, Inc. Method for electromagnetic guidance of feeding and suctioning tube assembly
GB2502383A (en) * 2012-05-21 2013-11-27 Adey Holdings 2008 Ltd Separator device
GB2502383B (en) * 2012-05-21 2017-02-01 Adey Holdings 2008 Ltd In-line fitment for connecting a filter to a pipe
US10918373B2 (en) 2013-08-31 2021-02-16 Edwards Lifesciences Corporation Devices and methods for locating and implanting tissue anchors at mitral valve commissure
IT201700002679A1 (en) * 2017-01-12 2018-07-12 Endostart S R L Gia Denominata Euro Endoscopy S R L Endoscopic guide for catheters or endoscopes and endoscopy system including said guide.
WO2018232190A1 (en) * 2017-06-14 2018-12-20 The University Of Vermont And State Agricultural College Peritoneal dialysis (pd) catheter weighted anchor
US11621518B2 (en) 2018-10-16 2023-04-04 Bard Access Systems, Inc. Safety-equipped connection systems and methods thereof for establishing electrical connections
WO2021035112A1 (en) * 2019-08-21 2021-02-25 Bn Intellectual Properties, Inc. Endotracheal tube sound
WO2022232325A1 (en) * 2021-04-28 2022-11-03 Bard Access Systems, Inc. Magnetically trackable stylets and methods thereof

Similar Documents

Publication Publication Date Title
US3794041A (en) Gastrointestinal catheter
CN1289032C (en) System for detecting medical tube position within the body of a patient
US5947891A (en) Method and apparatus for homogeneously irradiating the vaginal mucosa with a linear source uterovaginal applicator
US6358196B1 (en) Magnetic retraction system for laparoscopic surgery and method of use thereof
US8027712B2 (en) Elongated markers for soft tissue volume identification
US5353807A (en) Magnetically guidable intubation device
US4315509A (en) Insertion and removal catheters and intestinal tubes for restricting absorption
JPH0889582A (en) Catheter for medical treatment and its guiding method
CN107155301A (en) Can connecting conduit
JPS59111748A (en) Ureter stent
JPS62197053A (en) Magnetic artificial anus having sphincteral function
JP2020505087A (en) Endoscope guides, especially for colonoscopy, and systems for endoscopes equipped with such guides
US3786807A (en) Disposable diaphragm and insertion-removal unit therefor
JP2020505087A5 (en)
JP3176653B2 (en) Medical capsule device
US9737197B2 (en) Medical scope attachment device and system
JP2003502122A (en) Radiation sources for intravascular radiation therapy
JP2003502121A (en) Radiation sources for intravascular radiation therapy
US9895253B2 (en) Balloon immobilization device for radiation treatment
WO2011005955A2 (en) Magnetic stent and method of use
US20110052497A1 (en) Minimally Invasive Systems and Methods for In Vivo Testing of Materials
JPH0889583A (en) Method for guiding catheter for medical treatment
RU200549U1 (en) Device for recording gastric contractile function in experimental animals
CN102743244B (en) Ureter bracket pipe with iron net line device
Scott Simplified Interstitial Therapy Technique (“Vicryl” 125I) for Unresectable Lung Cancer