CN105147350A - Self-adaptive plugging device - Google Patents
Self-adaptive plugging device Download PDFInfo
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- CN105147350A CN105147350A CN201510646808.1A CN201510646808A CN105147350A CN 105147350 A CN105147350 A CN 105147350A CN 201510646808 A CN201510646808 A CN 201510646808A CN 105147350 A CN105147350 A CN 105147350A
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- shutoff dish
- stopper
- self adaptation
- shutoff
- dish
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12122—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder within the heart
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/1214—Coils or wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/12168—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device having a mesh structure
- A61B17/12172—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device having a mesh structure having a pre-set deployed three-dimensional shape
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
- A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
- A61B2017/00606—Implements H-shaped in cross-section, i.e. with occluders on both sides of the opening
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
- A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
- A61B2017/00623—Introducing or retrieving devices therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00867—Material properties shape memory effect
Abstract
The invention provides a self-adaptive plugging device. The self-adaptive plugging device is characterized by comprising a first plugging disc and a second plugging disc which are used for plugging blood flows of coloboma positions, the first plugging disc is connected with one end of a connecting waist portion which can be stretched and deflected, and the other end of the connecting waist portion which can be stretched and deflected is connected with the second plugging disc. According to the self-adaptive plugging device, the connecting waist portion can be stretched and deflected; by means of stretching and deflection of the connecting waist portion, the functions of adjusting the length and the angle of deflection of the plugging device can be achieved; generally, certain included angles exist between aortas and pulmonary arteries, and under the action of the adjustable waist portion, the plugging discs on the two sides can be well attached to the wall faces of catheters of the aortas and the pulmonary arteries respectively, and the main performances such as the rebound resilience, the fixity and the plugging effect of the plugging device are significantly improved.
Description
Technical field
The present invention relates to a kind of self adaptation stopper, be used for the treatment of congenital heart disease.
Background technology
Congenital heart disease (abbreviation congenital heart disease) refers to that the anatomical structure caused due to the formation obstacle of heart and trunk or abnormal development in fetal development period is abnormal, or the passage should automatically closed after birth fails to close the situation of (belonging to normal fetus).Congenital heart disease is a modal class in congenital malformation, accounts for 28% of various congenital malformation.And congenital heart disease the most common comprises ward septal defect (ASD), ventricular septal defect (VSD), patent ductus arteriosus (PDA).Suffer from congenital heart disease number in the neonate of annual China and about have 150,000-20 ten thousand.Traditional Therapeutic Method is surgery open chest surgery, by the technology of sticking patch or suture needle, defect is repaired, but surgery hands is comparatively large to body injury, has certain postoperative complication and leaves cicatrix, the physical and mental health of patient and the quality of life after being grown up will be affected for a long time.
The appearance of stopper for the treatment of congenital heart disease this situation is had larger improvement.Stopper is the medical apparatus and instruments that one is used for the treatment of the diseases such as structural heart disease atrial septal defect (ASD), oval hole plugging device (PFO), ventricular septal defect (VSD), patent ductus arteriosus (PDA).Stopper is generally woven by nitinol alloy wire and forms, in two disk-like structure.Utilize operation that stopper is fixed on defect place, can stop blood flow, overlay on stopper surface along with endothelial tissue is climbed, defect heals complete blocking blood flow.The diameter of its waist and defect matches, and stopper is not easily shifted, and reduces residual shunt incidence rate, and two disk-like structure, under nitinol alloy wire Memorability and hyperelastic effect, makes beating of shutoff deformation and heart collaborative, reduces residual shunt further.Stopper behaviour enters heart by conveyer device (sheath pipe, propelling movement wirerope, seal wire etc.) intravascular or puncture, in lesion release, operation wound is greatly reduced, and the safety of congenital heart disease interventional therapy and success rate are significantly improved.
But current stopper technology also has numerous new requirement in clinical practice, main performance still has the space of very much progress.These comprise: the resilience, stationarity, plugging effect etc. of the shutoff at once of stopper.Wherein resilience refers to that general stopper is made up of Ultimum Ti, has two disk structures of two cards in left and right.First stopper being pulled into elongated strip pre-installs in bridge tube, after sending into the release of endocardial defect place, recovers double plate face and the rubble being clipped in defect plays plugging action via delivery sheath.But, in the use of actual NiTi alloys occluder, because nickel-titanium alloy material super-elasticity and Memorability are to the sensitivity of temperature, the resistance produced in course of conveying and strain, and the factor such as blood flow viscosity, the structure in double plate face can not be recovered completely during a lot of Clinical practice, and become calabash shaped etc., this not only makes the shutoff of stopper resistance blood ability have a greatly reduced quality, and the rubble of laminating defect can not be clamped, thus form abundant residues shunting or bring stopper to come off risk and the stopper more renewed of having to reclaim, until discharge qualified.And stationarity refers to that stopper upon discharge, can identical position be kept for a long time in defect and not be shifted or come off, but double plate stopper is owing to only fixing with the clamping of double plate face, for rubble shape and the thickness of different structure, unified double plate profile can not adapt to automatically, add may being out of shape with resilience of stopper not good, the risk that the stopper in double plate face then has displacement even to come off.Demeanour effect refers to after ductus arteriosus occluder defect, can block blood.With or without one of leading indicator that residual shunt is investigation stopper surgical effect clinically, if stopper utilizes contrast agent or ultrasound observation not to have residual shunt just can judge implantation success after implanting.But the stopper in double plate face due to double plate face parallel, for width not wait or irregular defect, then may be out of shape thus produce residual shunt.
Summary of the invention
The object of this invention is to provide a kind of stopper with adjustable lumbar, make the main performances such as stopper resilience, stationarity, plugging effect have the raising of matter.Stopper structure of the present invention can be applicable on various stopper, comprises ASD, VSD, PDA stopper, has choked flow film stopper and without choked flow film stopper etc.
In order to achieve the above object, the invention provides a kind of self adaptation stopper, comprise the first shutoff dish for shutoff defect place blood flow and the second shutoff dish, it is characterized in that, the first described shutoff dish connects the one end of the connection waist that can stretch and deflect, and can stretch to be connected the second shutoff dish with the other end of the connection waist deflected.
Preferably, the described connection waist stretching and deflect comprises sphere mesh grid, and one end of described sphere mesh grid connects the first shutoff dish, and the other end connects the second shutoff dish.
Preferably, the described connection waist stretching and deflect comprises the collar, and one end of the described collar connects the first shutoff dish, and the other end connects the second shutoff dish.
Preferably, the described connection waist stretching and deflect comprises spring, and one end of described spring connects the first shutoff dish, and the other end connects the second shutoff dish.
Preferably, the described connection waist stretching and deflect comprises the combination of slide bar slide block, and one end of described slide bar slide block combination connects the first shutoff dish, and the other end connects the second shutoff dish.
More preferably, described slide bar slide block combination comprises center slide rail, top shoe, sliding block, upper slide bar and drop shot, top shoe and sliding block be located at respectively center slide rail two ends up and down and can independently centrally slide rail slide, upper slide bar is through top shoe, top shoe can slide along upper slide bar, and drop shot is through sliding block, and sliding block can slide along drop shot, upper slide bar and drop shot are located on upper bracket and lower carriage respectively, and upper bracket and lower carriage are connected upper shutoff dish and lower shutoff dish respectively.
Preferably, the described connection waist stretching and deflect comprises the cylindrical body woven by nitinol alloy wire, and the sidewall of described cylindrical body is formed with at least one annular section protruded.
Preferably, the first described shutoff dish comprises nitinol alloy wire knitting disc; Or the first described shutoff dish comprises at least two fixed arms, described fixed arm is the straight tube or curve bend that are cut by Nitinol pipe; Or the first described shutoff dish comprises helix skeleton.
More preferably, inside or outside stitching of described nitinol alloy wire knitting disc fix at least one deck macromolecule choked flow film, and fixing macromolecule choked flow film is sewed up on the surface of described fixed arm, and fixing macromolecule choked flow film is sewed up on the surface of described helix skeleton.
Preferably, the second described shutoff dish comprises the hollow structure of nitinol alloy wire braiding; Or the first described shutoff dish comprises at least two fixed arms, described fixed arm is the straight tube or curve bend that are cut by Nitinol pipe; Or the first described shutoff dish comprises helix skeleton.
More preferably, inside or outside stitching of described nitinol alloy wire knitting disc fix at least one deck macromolecule choked flow film, and fixing macromolecule choked flow film is sewed up on the surface of described fixed arm, and fixing macromolecule choked flow film is sewed up on the surface of described helix skeleton.
More preferably, described fixed arm is chondritic away from one end of connection waist.
Preferably, the first described shutoff dish be connected waist and be fixedly connected with by the first fixture, the second described shutoff dish be connected waist and be fixedly connected with by the second fixture.
Preferably, the first described shutoff dish or the outside of the second shutoff dish are provided with the steel screw bushing for being connected with the conveyer device of stopper.
Preferably, the first described shutoff dish or the medial recess of the second shutoff dish, described steel screw bushing is located at the outside of the first shutoff dish or the second shutoff dish, the first shutoff dish or the second shutoff dish in the same plane with the end face of steel screw bushing.
Preferably, the first described shutoff dish or the cross section of the second shutoff dish are circular, and longitudinal section is square, trapezoidal or oval.
Compared with prior art, the invention has the beneficial effects as follows:
1, the connection waist of self adaptation stopper of the present invention can stretch and deflect, by connecting stretching and the deflection of waist, can play and regulate the length of stopper and the effect of deflection angle, all there is certain angle in general aorta and pulmonary artery, under the effect of adjustable lumbar, the shutoff dish of both sides can respectively with aorta and ductus arteriosus wall good fit.Significantly improve the main performances such as the resilience of stopper, stationarity, plugging effect;
2, shutoff dish of the present invention can adopt helix skeleton, and the benefit of this design uses individual thread material, compares by sheath pipe ability the lifting that traditional stopper has matter.Meanwhile, this helix skeleton can be applied in the upper and lower card of stopper respectively, coordinates tradition braiding to form another one card; Or helix skeleton is applied in stopper two cards simultaneously.Like this, the resilience required by different human body structure, stationarity and choked flow and select no design.As certain disc requires higher to resilience and stationarity, helix skeleton can be adopted; As required higher to choked flow, nitinol alloy wire knitting disc can be adopted.
In the some months after the implantation of 3, self adaptation stopper of the present invention, by there being endotheliocyte to climb the surface of overgrowth length at nitinol alloy wire knitting disc or the surface of fixed arm, make its surperficial endothelialization, thus form one deck autologous organisms film, finally cure defect.
Accompanying drawing explanation
Fig. 1 is the self adaptation stopper structural representation in embodiment 1;
Fig. 2 is the self adaptation stopper structural representation in embodiment 6;
Fig. 3 is the self adaptation stopper structural representation in embodiment 7;
Fig. 4 is the distribution figure of four and eight fixed arms;
Fig. 5 is the self adaptation stopper structural representation in embodiment 8;
Fig. 6 is the self adaptation stopper structural representation in embodiment 9
Fig. 7 is that the self adaptation stopper in embodiment 1 uses schematic diagram;
Fig. 8 is that the self adaptation stopper in embodiment 6 uses schematic diagram;
Fig. 9 is that the self adaptation stopper in embodiment 7 uses schematic diagram;
Figure 10 is that the self adaptation stopper in embodiment 9 uses schematic diagram;
Figure 11 is the self adaptation stopper structural representation in embodiment 2;
Figure 12 is the self adaptation stopper structural representation in embodiment 3;
Figure 13 is the self adaptation stopper structural representation in embodiment 4;
Figure 14 is the self adaptation stopper structural representation in embodiment 5;
Figure 15 is the self adaptation stopper structural representation in embodiment 10.
Detailed description of the invention
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
Embodiment 1
As shown in Figure 1, self adaptation stopper in the present embodiment comprises the first shutoff dish for shutoff defect place blood flow and the second shutoff dish, the first described shutoff dish connects the one end of the connection waist that can stretch and deflect, and can stretch to be connected the second shutoff dish with the other end of the connection waist deflected.
The first described shutoff dish is nitinol alloy wire knitting disc 1, described nitinol alloy wire knitting disc 1 comprises the hollow double-layer structure of nitinol alloy wire braiding, fixing one deck macromolecule choked flow film 8 is sewed up in the inside of described hollow double-layer structure, plays the effect of shutoff defect place blood flow.The cross section of described nitinol alloy wire knitting disc is circular, and longitudinal section is oval.
The second described shutoff dish comprises fixed arm 2, and described fixed arm 2 is formed by Nitinol pipe cut, has 16, and centrosymmetry distributes, and fixed arm 2 is curve bend, one end of fixed arm 2 be connected waist and connect.Fixing macromolecule choked flow film is sewed up on the surface of described fixed arm 2, and after the implantation in some months, its surface is possibility endothelialization also, plays effect that is fixing and shutoff simultaneously.
Described connection waist is woven by nitinol alloy wire and forms.Described connection waist comprises the cylindrical body 3 woven by nitinol alloy wire, and the sidewall of described cylindrical body 3 is formed with 2 annular sections 9 protruded.The annular section 9 of described protrusion can make to connect waist and have larger surplus when stretching and deflect, thus improves its stretching and deflection characteristic significantly.
Described fixed arm 2 be connected waist and be fixedly connected with by the first fixture 5, the first described fixture 5 can be made up of materials such as rustless steels, is annular multilayer nest structure, in order to the different fixed arm 2 of connection diameter be connected waist.
Described nitinol alloy wire knitting disc 1 be connected waist and be fixedly connected with by the second fixture 6.The second described fixture 6 can be made up of materials such as rustless steels, is annular multilayer nest structure, in order to the different nitinol alloy wire knitting disc 1 of connection diameter be connected waist.
The outside of described nitinol alloy wire knitting disc 1 is provided with the steel screw bushing 7 for being connected with the conveyer device of stopper.Described steel screw bushing 7 can be made up of materials such as rustless steels, has female thread, and coordinate with conveyer device (push rod) the front end external screw thread of stopper, rotational conveyance system end in vitro, namely completes the release of stopper.Play connection induction system, conveying stopper, the effect of release in body.
During use, as shown in Figure 7, steel screw bushing 7 is connected with the conveyer device 15 of stopper, self adaptation stopper in the present embodiment is delivered to precalculated position, and after discharging from delivery sheath, stopper reverts to double disk structure from elongated strip, be fixed on the both sides of defect rubble 13, the conveyer device 15 of external twisting stopper, the screw thread of head unscrews disengaging, just can discharge stopper.After the implantation in some months, endotheliocyte will be had to climb and to overlay on nitinol alloy wire knitting disc 1 superficial growth, make its surperficial endothelialization, thus form one deck autologous organisms film, finally cure defect.
Embodiment 2
As shown in Figure 1, self adaptation stopper in the present embodiment comprises the first shutoff dish for shutoff defect place blood flow and the second shutoff dish, the first described shutoff dish connects the one end of the connection waist that can stretch and deflect, and can stretch to be connected the second shutoff dish with the other end of the connection waist deflected.
The first described shutoff dish comprises fixed arm 2, and described fixed arm 2 is formed by Nitinol pipe cut, has 8, and centrosymmetry distributes, and fixed arm 2 is straight tube, one end of fixed arm 2 be connected waist and connect.Fixing macromolecule choked flow film 8 is sewed up on the surface of described fixed arm 2, and after the implantation in some months, its surface is possibility endothelialization also, plays effect that is fixing and shutoff simultaneously.
The first described shutoff dish is nitinol alloy wire knitting disc 1, described nitinol alloy wire knitting disc 1 comprises the hollow double-layer structure of nitinol alloy wire braiding, fixing one deck macromolecule choked flow film is sewed up in the inside of described hollow double-layer structure, plays the effect of shutoff defect place blood flow.The cross section of described nitinol alloy wire knitting disc is circular, and longitudinal section is oval.
Described connection waist comprises the sphere mesh grid 18 of the monolayer woven by nitinol alloy wire, and one end of described sphere mesh grid 18 connects the first shutoff dish, and the other end connects the second shutoff dish.Rotate preferably and stretch characteristics because it has, the card up and down of stopper can be made angularly to discharge, meet real different anatomic shape.
Described fixed arm 2 be connected waist and be fixedly connected with by the first fixture 5, the first described fixture 5 can be made up of materials such as rustless steels, is annular multilayer nest structure, in order to the different fixed arm 2 of connection diameter be connected waist.
Described nitinol alloy wire knitting disc 1 be connected waist and be fixedly connected with by the second fixture 6.The second described fixture 6 can be made up of materials such as rustless steels, is annular multilayer nest structure, in order to the different nitinol alloy wire knitting disc 1 of connection diameter be connected waist.
The outside of described nitinol alloy wire knitting disc 1 is provided with the steel screw bushing 7 for being connected with the conveyer device of stopper.Described steel screw bushing 7 can be made up of materials such as rustless steels, has female thread, and coordinate with conveyer device (push rod) the front end external screw thread of stopper, rotational conveyance system end in vitro, namely completes the release of stopper.Play connection induction system, conveying stopper, the effect of release in body.
The using method of the self adaptation stopper of the present embodiment is identical with embodiment 1.
Embodiment 3
The similar of the self adaptation stopper of the present embodiment is in embodiment 2, difference is, as shown in figure 12, the structure of the described connection waist stretching with deflect is different, in the present embodiment, the described connection waist stretching and deflect is made up of the collar 19, and one end of the described collar 19 connects the first shutoff dish, and the other end connects the second shutoff dish.
The using method of the self adaptation stopper of the present embodiment is identical with embodiment 1.
Embodiment 4
The similar of the self adaptation stopper of the present embodiment is in embodiment 2, difference is, as shown in figure 13, the structure of the described connection waist stretching with deflect is different, in the present embodiment, the described connection waist stretching and deflect is made up of spring 20, and one end of described spring 20 connects the first shutoff dish, and the other end connects the second shutoff dish.
The using method of the self adaptation stopper of the present embodiment is identical with embodiment 1.
Embodiment 5
The similar of the self adaptation stopper of the present embodiment is in embodiment 2, difference is, (1), as shown in figure 14, the structure of the described connection waist stretching with deflect is different, in the present embodiment, the described connection waist stretching and deflect is combined by slide bar slide block and forms, and one end of described slide bar slide block combination connects the first shutoff dish, and the other end connects the second shutoff dish.(2) the first shutoff dish described in and the second shutoff dish comprise fixed arm 2, and described fixed arm 2 is formed by Nitinol pipe cut, has 8, and centrosymmetry distributes, and fixed arm 2 is straight tube, one end of fixed arm 2 be connected waist and connect.Fixing macromolecule choked flow film is sewed up on the surface of described fixed arm 2.
Described slide bar slide block combination comprises center slide rail 210, top shoe 211, sliding block 212, upper slide bar 213 and drop shot 214, top shoe 211 and sliding block 212 be located at respectively center slide rail 210 two ends up and down and can independently centrally slide rail 210 slide, upper slide bar 213 is through top shoe 211, top shoe 211 can slide along upper slide bar 213, drop shot 214 is through sliding block 212, sliding block 212 can slide along drop shot 214, upper slide bar 213 and drop shot 214 are located on upper bracket 215 and lower carriage 216 respectively, upper bracket 215 and lower carriage 216 are connected shutoff dish and lower shutoff dish respectively.
The using method of the self adaptation stopper of the present embodiment is identical with embodiment 1.
Embodiment 6
As shown in Figure 2, the similar of the self adaptation stopper in the present embodiment is in embodiment 1, difference is, the longitudinal section of described nitinol alloy wire knitting disc 1 is trapezoidal, its medial recess, described nitinol alloy wire knitting disc 1 and the end face of steel screw bushing 7 in the same plane, make cell be easy to climb and cover, accelerate endothelialization and recovery.Its using state as shown in Figure 8.
Embodiment 7
As shown in Figure 3, the similar of the self adaptation stopper in the present embodiment is in embodiment 2, and difference is, described fixed arm 2 is straight tube, and its number is 4 or 8, is uniformly distributed at grade, as shown in Figure 4.And described fixed arm 2 is chondritic 10 away from one end of connection waist 3.
In the present embodiment, the structure of fixed arm 2 is more flat, to avoid affect or wear and tear other endocardial tissue and structure, and can reduce the volume taking the chambers of the heart.Described fixed arm 2 is chondritic away from one end of connection waist 3, can avoid the endocardial tissue that stabs.
The outside of fixed arm 2 can strengthen the instant stopper effect after implantation, add the flat design of fixed arm 2 after sewing up macromolecule choked flow film 8, makes cell be easy to climb and cover, accelerates endothelialization and recovery.
The using state of the self adaptation stopper in the present embodiment as shown in Figure 9.
Embodiment 8
As shown in Figure 5, the similar of the self adaptation stopper in the present embodiment is in embodiment 3, and its difference is, described steel screw bushing 7 is located at the outside of fixed arm 2.According to the different situations of heart defect, as both sides pressure differential difference (left room blood pressure be greater than right room, left room blood pressure is greater than right ventricle), and the structure influence of defect both sides is different, nitinol alloy wire knitting disc 1 and fixed arm 2 interchanging positions, steel screw bushing 7 is placed in fixed arm 2 side, to reach best plugging effect and fixed effect.
Embodiment 9
As shown in Figure 6, the similar of the self adaptation stopper in the present embodiment is in embodiment 3, and its difference is, the longitudinal section of described nitinol alloy wire knitting disc 1 is square, forms cylindrical structural.For patent ductus arteriosus (PDA) stopper, nitinol alloy wire knitting disc is according to connection aorta and Pulmonic channel shape can be cylindrical or class is coniform.As shown in Figure 10, fixed arm 2 is positioned over aorta side and fixes its using state.Nitinol alloy wire knitting disc 1 plays plugging action.And general aorta 16 and pulmonary artery 17 all exist certain angle, under the effect connecting waist 3, fixed arm 2 and nitinol alloy wire knitting disc 1 can respectively with aorta and ductus arteriosus wall good fit.
Embodiment 10
The similar of the self adaptation stopper of the present embodiment is in embodiment 2, difference is, as shown in figure 15, the first described shutoff dish is different with the structure of the second shutoff dish, in the present embodiment, the first described shutoff dish and the second shutoff dish comprise helix skeleton 22, and the surface of described helix skeleton is sewed with fixing macromolecule choked flow film.
The using method of the self adaptation stopper of the present embodiment is identical with embodiment 1.
Claims (10)
1. a self adaptation stopper, comprise the first shutoff dish for shutoff defect place blood flow and the second shutoff dish, it is characterized in that, the first described shutoff dish connects the one end of the connection waist that can stretch and deflect, and can stretch to be connected the second shutoff dish with the other end of the connection waist deflected.
2. self adaptation stopper as claimed in claim 1, it is characterized in that, the described connection waist stretching and deflect comprises sphere mesh grid (18), and one end of described sphere mesh grid (18) connects the first shutoff dish, and the other end connects the second shutoff dish.
3. self adaptation stopper as claimed in claim 1, it is characterized in that, the described connection waist stretching and deflect comprises the collar (19), and one end of the described collar (19) connects the first shutoff dish, and the other end connects the second shutoff dish.
4. self adaptation stopper as claimed in claim 1, it is characterized in that, the described connection waist stretching and deflect comprises spring (20), and one end of described spring (20) connects the first shutoff dish, and the other end connects the second shutoff dish.
5. self adaptation stopper as claimed in claim 1, is characterized in that, the described connection waist stretching and deflect comprises the combination of slide bar slide block, and one end of described slide bar slide block combination connects the first shutoff dish, and the other end connects the second shutoff dish.
6. self adaptation stopper as claimed in claim 5, it is characterized in that, described slide bar slide block combination comprises center slide rail (210), top shoe (211), sliding block (212), upper slide bar (213) and drop shot (214), top shoe (211) and sliding block (212) be located at respectively center slide rail (210) two ends up and down and can independently centrally slide rail (210) slide, upper slide bar (213) is through top shoe (211), top shoe (211) can slide along upper slide bar (213), drop shot (214) is through sliding block (212), sliding block (212) can slide along drop shot (214), upper slide bar (213) and drop shot (214) are located on upper bracket (215) and lower carriage (216) respectively, upper bracket (215) and lower carriage (216) are connected shutoff dish and lower shutoff dish respectively.
7. self adaptation stopper as claimed in claim 1, it is characterized in that, the described connection waist stretching and deflect comprises the cylindrical body (3) woven by nitinol alloy wire, and the sidewall of described cylindrical body is formed with at least one annular section (9) protruded.
8. self adaptation stopper as claimed in claim 1, it is characterized in that, the first described shutoff dish comprises nitinol alloy wire knitting disc (1); Or the first described shutoff dish comprises at least two fixed arms (2), described fixed arm (2) is the straight tube or curve bend that are cut by Nitinol pipe; Or the first described shutoff dish comprises helix skeleton (22); The second described shutoff dish comprises the hollow structure (1) of nitinol alloy wire braiding; Or the first described shutoff dish comprises at least two fixed arms (2), described fixed arm (2) is the straight tube or curve bend that are cut by Nitinol pipe; Or the first described shutoff dish comprises helix skeleton (22).
9. self adaptation stopper as claimed in claim 8, it is characterized in that, inside or outside stitching of described nitinol alloy wire knitting disc (1) fix at least one deck macromolecule choked flow film, fixing macromolecule choked flow film (8) is sewed up on the surface of described fixed arm (2), and fixing macromolecule choked flow film (8) is sewed up on the surface of described helix skeleton (22).
10. self adaptation stopper as claimed in claim 1, it is characterized in that, the first described shutoff dish or the outside of the second shutoff dish are provided with the steel screw bushing (7) for being connected with the conveyer device of stopper.
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| CN201510646808.1A CN105147350A (en) | 2015-10-08 | 2015-10-08 | Self-adaptive plugging device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510646808.1A CN105147350A (en) | 2015-10-08 | 2015-10-08 | Self-adaptive plugging device |
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| CN105147350A true CN105147350A (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510646808.1A Pending CN105147350A (en) | 2015-10-08 | 2015-10-08 | Self-adaptive plugging device |
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| CN106510788A (en) * | 2016-12-12 | 2017-03-22 | 上海心玮医疗科技有限公司 | Left atrial appendage occlusion device |
| CN109862832A (en) * | 2016-08-12 | 2019-06-07 | 伊森舍医疗公司 | Blood vessel plugging device with the locked component for packer |
| EP3398523A4 (en) * | 2015-12-29 | 2019-12-11 | Shenzhen KYD Biomedical Technology Co. Ltd | Left atrial appendage closure device |
| CN111000600A (en) * | 2019-12-17 | 2020-04-14 | 先健科技(深圳)有限公司 | Occluder and occlusion system |
| CN111000601A (en) * | 2019-12-17 | 2020-04-14 | 先健科技(深圳)有限公司 | Occluder and occlusion system |
| CN113384308A (en) * | 2021-06-02 | 2021-09-14 | 上海捍宇医疗科技股份有限公司 | Hook connection type pierceable plugging device system for conveying room wall through catheter |
| CN113520486A (en) * | 2021-06-24 | 2021-10-22 | 珠海市人民医院 | Adjustable plugging device |
| US11291454B2 (en) | 2015-12-29 | 2022-04-05 | Shenzhen Kyd Biomedical Technology Co. Ltd. | Left atrial appendage closure apparatus |
| CN114504356A (en) * | 2021-06-23 | 2022-05-17 | 上海心玮医疗科技股份有限公司 | Three-dimensional self-adaptive intracranial aneurysm plugging device |
| WO2024016507A1 (en) * | 2022-07-16 | 2024-01-25 | 上海傲流医疗科技有限公司 | In vivo occlusion and clamping instrument |
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| CN114504356A (en) * | 2021-06-23 | 2022-05-17 | 上海心玮医疗科技股份有限公司 | Three-dimensional self-adaptive intracranial aneurysm plugging device |
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| CN113520486A (en) * | 2021-06-24 | 2021-10-22 | 珠海市人民医院 | Adjustable plugging device |
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Application publication date: 20151216 |