CN109700496B - A heart occluder - Google Patents
A heart occluder Download PDFInfo
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- CN109700496B CN109700496B CN201910166065.6A CN201910166065A CN109700496B CN 109700496 B CN109700496 B CN 109700496B CN 201910166065 A CN201910166065 A CN 201910166065A CN 109700496 B CN109700496 B CN 109700496B
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- 208000028831 congenital heart disease Diseases 0.000 description 7
- 230000002159 abnormal effect Effects 0.000 description 3
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- 208000008883 Patent Foramen Ovale Diseases 0.000 description 1
- 208000001910 Ventricular Heart Septal Defects Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
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Abstract
本申请涉及心脏封堵治疗技术领域，尤其涉及一种心脏封堵器，包括有由合金丝编织成的封堵器主体，封堵器主体具有相对设置的两个盘状体和连接于两个盘状体之间的连接部，还包括有用于固定合金丝的第一固定套和第二固定套，第一固定套和第二固定套分别位于两个盘状体上、并通过高度调节组件可相互靠近地连接。如此设置，在进行介入治疗手术的过程中，该心脏封堵器能够调节自身高度，以适应缺损周围组织的实际厚度，从而使得该心脏封堵器具有更强的适应性和可控性，同时能够提高封堵治疗的效果，降低手术风险。
The present application relates to the field of cardiac occlusion therapy technology, and in particular to a cardiac occluder, including an occluder body woven from alloy wires, the occluder body having two disc-shaped bodies arranged opposite to each other and a connecting portion connected between the two disc-shaped bodies, and also including a first fixing sleeve and a second fixing sleeve for fixing the alloy wires, the first fixing sleeve and the second fixing sleeve being respectively located on the two disc-shaped bodies and being connected to each other closely through a height adjustment component. With such a configuration, during the process of interventional therapy, the cardiac occluder can adjust its own height to adapt to the actual thickness of the tissue surrounding the defect, thereby making the cardiac occluder more adaptable and controllable, and at the same time being able to improve the effect of the occlusion therapy and reduce the risk of surgery.
Description
Technical Field
The application relates to the technical field of heart plugging treatment, in particular to a heart plugging device.
Background
Congenital heart disease refers to abnormal anatomical structures caused by the formation disorder or dysplasia of heart and large blood vessels in the embryo development period, or the condition that a channel which is required to be automatically closed after birth is not closed, is the most common type of congenital malformations, and the morbidity of the congenital heart disease accounts for about 0.4% -1% of that of newborn infants. The congenital heart disease has abnormal hemodynamics, which will increase heart burden, cause heart failure and induce arrhythmia, and has abnormal blood flow in lung, which will increase respiratory system infection of infant, and children with congenital heart disease have obviously slow development compared with normal infants, and because the congenital heart disease affects the nervous system, the problems of intelligence and cognition disorder are likely to occur, so the treatment of congenital heart disease becomes an important social concern.
Congenital heart diseases mainly comprise atrial septal defects, ventricular septal defects, patent foramen ovale, patent arterial ducts and the like, and most of congenital heart diseases can be plugged and treated by interventional operation at present. The plugging device in the current market is mainly composed of three parts, namely a plugging device bracket woven by stainless steel sleeves and nickel-titanium alloy wires with a shape memory function, a flow blocking film and the like, and according to different symptoms, the structural design of the plugging device is different, and according to defects of different sizes, the plugging device with different specifications can be selected. However, in practical use, the shape of the heart defect is different, and the specifications of the occluder production are generally fixed, and the size of the occluder which can be selected by a doctor is always a certain deviation from the actual defect. The height of the occluder corresponds to the thickness of the actual defect, and is one of the key parameters of the occluder, the smaller the height is, the larger the clamping force of the occluder to surrounding tissues is, the abrasion of the tissues and the blockage of the electrocardiograph are possibly caused, other complications are caused, and the larger the height is, the smaller the clamping force of the occluder to the surrounding tissues is, the conditions of slow endothelialization, residual shunt and the like are possibly caused, even the occluder falls off, and potential risks are brought to patients.
Therefore, how to solve the problems of deviation between the size of the existing occluder and the actual defect, high operation risk and potential risk is a key technical problem to be solved by the person skilled in the art.
Disclosure of Invention
In order to overcome the problems of the related art at least to a certain extent, the application aims to provide a heart occluder, which can solve the problems of large surgical risk and potential risk existing in the deviation between the size of the existing occluder and the actual defect.
The application provides a heart occluder, which comprises an occluder main body woven by alloy wires, wherein the occluder main body is provided with two disc-shaped bodies which are oppositely arranged, a connecting part connected between the two disc-shaped bodies, and a first fixing sleeve and a second fixing sleeve which are used for fixing the alloy wires, wherein the first fixing sleeve and the second fixing sleeve are respectively positioned on the two disc-shaped bodies and can be mutually connected in a close way through a height adjusting assembly.
Preferably, the height adjusting assembly comprises an adjusting rod located in the plugging device main body, a first end of the adjusting rod can be axially and rotatably fixed in the first fixing sleeve, a second end of the adjusting rod penetrates through the second fixing sleeve and can be connected with the pushing rod, and the adjusting rod is matched with the inner wall of the second fixing sleeve through first threads.
Preferably, a limiting structure for limiting the rotation of the adjusting rod in a first direction is arranged between the first end of the adjusting rod and the inner wall of the first fixing sleeve, when the adjusting rod rotates in a second direction, the second fixing sleeve moves towards the first fixing sleeve along the adjusting rod under the action of the first thread, and the first direction is opposite to the second direction and is the rotation direction of the adjusting rod.
Preferably, the limit structure comprises a plurality of limit parts and a plurality of buckles corresponding to the positions of the limit parts one by one, the limit parts are sequentially arranged on the inner wall of the first fixing sleeve in a surrounding mode, the buckles are sequentially arranged on the outer wall of the adjusting rod in a surrounding mode through elastic parts and are matched with the limit parts under the action of the elastic parts, when the adjusting rod rotates in the first direction, the limit parts limit the buckles to pass along the limit parts, and when the adjusting rod rotates in the second direction, the buckles sequentially pass through the limit parts.
Preferably, the limiting piece is arranged to be gradually far away from a clamping block of the adjusting rod along the first direction, the buckle is abutted against the clamping block under the action of the elastic piece, a plurality of supporting rods extending towards the first fixing sleeve are arranged on the outer wall of the adjusting rod, the buckle is hinged with the end parts of the supporting rods, one end of the elastic piece is connected to the adjusting rod, and the other end of the elastic piece is connected to the position of the buckle, which is far away from the adjusting rod.
Preferably, the limiting piece is arranged to be gradually close to the clamping groove of the adjusting rod along the first direction, the buckle is embedded in the clamping groove and abuts against the opening of the clamping groove under the action of the elastic piece, and the adjacent clamping grooves are communicated and can be used for the buckle to pass through.
Preferably, the first end of the adjusting rod is provided with a protrusion in a surrounding manner, the inner wall of the first fixing sleeve is provided with a groove for the protrusion to be embedded, and the opening of the groove faces the adjusting rod.
Preferably, the second end of the adjusting rod is connected with the pushing rod through a second thread, and the first thread is opposite to the second thread.
Preferably, an interlayer is arranged between the inner wall and the outer wall of the first fixing sleeve and the second fixing sleeve, and the closing-in of the alloy wire is fixed in the interlayer.
Preferably, the inner or outer surfaces of both said disc-shaped bodies are provided with a flow blocking film.
The technical scheme provided by the application can comprise the following beneficial effects:
The heart occluder comprises a first fixing sleeve and a second fixing sleeve for fixing alloy wires, wherein the first fixing sleeve and the second fixing sleeve are respectively arranged on two disc-shaped bodies and are connected through a height adjusting assembly, the height adjusting assembly is adjusted to adjust the distance between the first fixing sleeve and the second fixing sleeve so that the first fixing sleeve and the second fixing sleeve can be mutually close, when the first fixing sleeve and the second fixing sleeve are close, the connecting part in the middle is compressed, so that the two disc-shaped bodies are driven to mutually close, the size of the heart occluder is corresponding to the size of an actual defect, the distance between the two disc-shaped bodies can be adjusted, the clamping force on surrounding tissues can be moderately controlled, and potential safety hazards caused by overlarge or overlarge clamping force are avoided;
in the process of interventional therapy operation, the heart plugging device can adjust the self height to adapt to the actual thickness of the surrounding tissues of the defect, so that the heart plugging device has stronger adaptability and controllability, and simultaneously can improve the plugging treatment effect and reduce the operation risk.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a cardiac occluder shown in accordance with some example embodiments;
FIG. 2 is a schematic illustration of a structure of a cardiac occluder in accordance with some example embodiments;
FIG. 3 is a front view of a first retaining sleeve shown according to some example embodiments;
FIG. 4 is a top view of a first retaining sleeve shown according to some example embodiments;
FIG. 5 is a front view of a first retaining sleeve shown according to further exemplary embodiments;
FIG. 6 is a top view of a first retaining sleeve according to further exemplary embodiments;
FIG. 7 is a schematic illustration of a second retaining sleeve shown in accordance with some example embodiments;
Fig. 8 is a schematic structural view of a cardiac occluder in accordance with further exemplary embodiments.
In the figure, the device comprises a 1-stopper main body, a 11-disc-shaped body, a 12-connecting part, a 13-alloy wire, a 2-first fixing sleeve, a 3-second fixing sleeve, a 4-adjusting rod, a 5-pushing rod, a 6-limiting piece, a 7-buckle, an 8-elastic piece and a 9-supporting rod.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus or methods consistent with aspects of the application.
The embodiment provides a heart plugging device, which can adjust the height of the heart plugging device according to the expected plugging target according to the actual thickness of the tissues around the defect in the process of interventional therapy operation, so that the heart plugging device has stronger adaptability and controllability, can improve the effect of plugging treatment, reduce the operation risk, effectively solve the problems that the existing plugging device has deviation between the size and the actual defect, has large operation risk and has potential risk.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
Hereinafter, embodiments will be described with reference to the drawings. Furthermore, the embodiments shown below do not limit the summary of the invention described in the claims. The whole contents of the constitution shown in the following examples are not limited to the solution of the invention described in the claims.
Referring to fig. 1-8, the present embodiment provides a cardiac occluder, which comprises an occluder body 1, wherein the occluder body 1 is formed by weaving an alloy wire 13, and the alloy wire 13 is preferably a nickel-titanium alloy wire with a shape memory function so as to occlude a defect, and the occluder body 1 has two disc-shaped bodies 11 and a connecting portion 12 which are oppositely arranged, the connecting portion 12 is located between the two disc-shaped bodies 11 and connects the two disc-shaped bodies 11, and the diameter of the connecting portion 12 is smaller than the diameter of the two disc-shaped bodies 11 so as to clamp tissues around the defect.
The heart occluder further comprises a first fixing sleeve 2 and a second fixing sleeve 3 for fixing the alloy wire 13, wherein the first fixing sleeve 2 and the second fixing sleeve 3 are respectively arranged on the two disc-shaped bodies 11 and are connected through a height adjusting component, the height adjusting component is adjusted to adjust the distance between the first fixing sleeve 2 and the second fixing sleeve 3 so that the first fixing sleeve and the second fixing sleeve can be mutually close, when the first fixing sleeve 2 and the second fixing sleeve 3 are close, the connecting part 12 in the middle is compressed, the two disc-shaped bodies 11 are driven to be mutually close, the size of the heart occluder is corresponding to the size of an actual defect, the distance between the two disc-shaped bodies 11 can be adjusted, the clamping force on surrounding tissues can be moderately controlled, and potential safety hazards caused by overlarge or undersize clamping force are avoided.
So set up, in the in-process of carrying out interventional therapy operation, this heart plugging device can adjust the self height to the actual thickness of the tissue around the adaptation defect, thereby make this heart plugging device have stronger adaptability and controllability, can improve the effect of shutoff treatment simultaneously, reduce the operation risk.
In this embodiment, the height adjusting assembly includes an adjusting rod 4, as shown in fig. 2, where the adjusting rod 4 is located inside the plugging device main body 1 and is connected to the first fixing sleeve 2 and the second fixing sleeve 3, and a first end of the adjusting rod 4 is rotatably fixed in the first fixing sleeve 2 along an axial direction of the adjusting rod 4, and a second end of the adjusting rod 4 penetrates through the second fixing sleeve 3 and can be connected to the pushing rod 5, and the adjusting rod 4 is matched with an inner wall of the second fixing sleeve 3 through a first thread, so that the adjusting rod 4 can be driven to rotate under the rotation action of the pushing rod 5, and because the adjusting rod 4 is matched with the second fixing sleeve 3 through the thread, when the adjusting rod 4 rotates, the second fixing sleeve 3 can be displaced relative to the adjusting rod 4 along the first thread, so that the first fixing sleeve 2 and the second fixing sleeve 3 can be close to each other along the axial direction of the adjusting rod 4.
Further, a limiting structure is arranged between the first end of the adjusting rod 4 and the inner wall of the first fixing sleeve 2, the limiting structure is used for limiting the adjusting rod 4 to rotate along a first direction, and when the adjusting rod 4 rotates along a second direction, the second fixing sleeve 3 moves towards the first fixing sleeve 2 along the adjusting rod 4 under the action of the first screw thread, wherein the first direction is opposite to the second direction and is the rotation direction of the adjusting rod 4, namely one of the first direction and the second direction is anticlockwise, and the other is clockwise. When the adjusting rod 4 rotates in the first direction, the first fixing sleeve 2 and the second fixing sleeve 3 can be mutually close to each other, so that the two disc-shaped bodies 11 clamp tissues around the defect, and when the adjusting rod 4 rotates in the first direction, the first fixing sleeve 2 and the second fixing sleeve 3 cannot be mutually far away due to the effect of the limiting structure, so that the two disc-shaped bodies 11 are prevented from loosening in the clamping process, the heart occluder is prevented from falling off, and the potential risk is effectively avoided.
The limiting structure comprises a plurality of limiting pieces 6 and a plurality of buckles 7, wherein the limiting pieces 6 are sequentially arranged on the inner wall of the first fixing sleeve 2 in a surrounding mode, the buckles 7 are sequentially arranged on the outer wall of the adjusting rod 4 in a surrounding mode and fixedly connected with the adjusting rod 4 through elastic pieces 8, and the positions of the limiting pieces 6 and the buckles 7 are in one-to-one correspondence and are matched under the action of the elastic pieces 8. When the adjusting rod 4 rotates in the first direction, the limiting piece 6 limits the buckle 7 to pass through along the limiting piece 6 to limit the first fixed sleeve 2 and the second fixed sleeve 3 to be far away, and when the adjusting rod 4 rotates in the second direction, the buckle 7 sequentially passes through the limiting piece 6 to achieve the approaching of the first fixed sleeve 2 and the second fixed sleeve 3. Like this, through locating part 6 and buckle 7 matched with form, realized adjusting the unidirectional rotation of pole 4, simple structure, the simple operation, and firm reliable easily realizes.
As shown in fig. 3-4, in some embodiments, the limiting member 6 is configured as a clamping block, the buckle 7 abuts against the clamping block under the action of the elastic member 8, and the surface, contacted by the clamping block 7, of the clamping block is gradually far away from the adjusting rod 4 along the first direction, so that a boss capable of limiting the movement of the buckle 7 along the first direction is formed between adjacent clamping blocks, and when the buckle 7 moves along the second direction, the buckle 7 sequentially moves from the top of the boss to the bottom of the boss under the action of the elastic member 8.
The outer wall at regulation pole 4 is provided with a plurality of bracing pieces 9 that extend towards the direction of first fixed cover 2, this bracing piece 9 and buckle 7 one-to-one, wherein, buckle 7 is articulated with the tip of bracing piece 9, and the one end of elastic component 8 is connected on regulation pole 4, the other end is connected on buckle 7 and is kept away from the position of regulation pole 4, like this, through the bearing structure of bracing piece 9, make the buckle 7 more firm with the connection of regulation pole 4, and under the effect of elastic component 8, buckle 7 offsets with the fixture block all the time, be favorable to preventing to adjust the connection of pole 4 and first fixed cover 2 not hard up, in order to increase of service life. Here, the elastic member 8 is preferably a pressure spring.
In other embodiments, as shown in fig. 5-6, the limiting member 6 is provided with a slot into which the buckle 7 is inserted, so that the elastic member 8 extends into the connecting buckle 7, the slot is provided with an opening, the opening faces the adjusting rod 4, and the buckle 7 is embedded in the slot and abuts against the opening of the slot under the action of the elastic member 8, so that the buckle 7 has a tendency to move towards the adjusting rod 4. Wherein, the internal surface that each draw-in groove and buckle 7 offset all is close to regulation pole 4 gradually along first direction, link up between the adjacent draw-in groove, and can supply buckle 7 to pass through, like this, a plurality of draw-in grooves link up and form the gliding passageway of confession buckle 7 to form the notch that can restrict buckle 7 along first direction displacement between adjacent draw-in groove, when buckle 7 along the displacement of second direction, under the elastic component 8 effect, buckle 7 can be moved to in the notch by the top of notch in proper order. The structure is firm simple, and the simple operation guarantees that buckle 7 and the connection of adjusting pole 4 are more firm to under the effect of elastic component 8, buckle 7 offsets with the draw-in groove all the time, is favorable to preventing to adjust pole 4 and first fixed cover 2 be connected not hard up, in order to increase of service life. Here, the elastic element 8 is also preferably a tension spring.
In order to strengthen the connection stability of adjusting pole 4 and first fixed cover 2, be provided with the arch around adjusting pole 4's first end, be provided with the recess around the inner wall of first fixed cover 2, this arch is inlayed in the recess, and the opening of recess is towards adjusting pole 4, like this, two lateral walls of recess can restrict protruding axial displacement along first fixed cover 2, and then have avoided adjusting pole 4 to displace for first fixed cover 2, have promoted the connection stability of adjusting pole 4 and first fixed cover 2 effectively.
In this embodiment, as shown in fig. 7, the second end of the adjusting rod 4 is connected with the pushing rod 5 through the second thread in a matching manner, and the first thread is opposite to the second thread, so that when the pushing rod 5 rotates in the first direction, the limiting structure limits the adjusting rod 4 to rotate relative to the first fixing sleeve 2, so that the pushing rod 5 rotates relative to the adjusting rod 4 to be separated, and when the pushing rod 5 rotates in the second direction, the adjusting rod 4 is driven to rotate in the second direction, so as to achieve the purpose of adjusting the first fixing sleeve 2 and the second fixing sleeve 3 to be close. In this way, the detachment of the pushing rod 5 and the rotation adjustment of the adjusting rod 4 are facilitated, and the height of the heart occluder is conveniently controlled.
In order to avoid interference between the screw thread of the push rod 5 and the second fixing sleeve 3, the diameter of the first screw thread is larger than the diameter of the second screw thread.
Wherein, be provided with the intermediate layer between the inner wall and the outer wall of first fixed cover 2 and the fixed cover 3 of second, the binding off of alloy wire 13 is fixed in the intermediate layer, like this through the fixed of the fixed cover 2 of first fixed cover 2 and the fixed cover 3 of second, can prevent that alloy wire 13 from taking out, ensured the structural stability of stopper main part 1 effectively.
A blocking film is provided on the inner or outer surfaces of the two disc-shaped bodies 11 to enhance the sealing effect of the heart sealer.
It should be noted that the terms "first," "second," and the like herein are not limited to a specific order, but merely serve to distinguish between components or functions.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
It is to be understood that the same or similar parts in the above embodiments may be referred to each other, and that in some embodiments, the same or similar parts in other embodiments may be referred to.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (6)
1. The heart occluder comprises an occluder body (1) woven by alloy wires (13), wherein the occluder body (1) is provided with two disc-shaped bodies (11) which are oppositely arranged and a connecting part (12) which is connected between the two disc-shaped bodies (11), and is characterized by further comprising a first fixing sleeve (2) and a second fixing sleeve (3) which are used for fixing the alloy wires (13), wherein the first fixing sleeve (2) and the second fixing sleeve (3) are respectively positioned on the two disc-shaped bodies (11) and can be mutually connected in a close way through a height adjusting assembly;
The height adjusting assembly comprises an adjusting rod (4) positioned in the plugging device main body (1), a first end of the adjusting rod (4) can be axially and rotatably fixed in the first fixing sleeve (2), a second end of the adjusting rod penetrates through the second fixing sleeve (3) and can be connected with the pushing rod (5), and the adjusting rod (4) is matched with the inner wall of the second fixing sleeve (3) through first threads;
A limiting structure for limiting the rotation of the adjusting rod (4) along a first direction is arranged between the first end of the adjusting rod (4) and the inner wall of the first fixed sleeve (2), and when the adjusting rod (4) rotates along a second direction, the second fixed sleeve (3) moves towards the first fixed sleeve (2) along the adjusting rod (4) under the action of the first thread, wherein the first direction is opposite to the second direction and is the rotation direction of the adjusting rod (4);
The limiting structure comprises a plurality of limiting pieces (6) and a plurality of buckles (7) corresponding to the positions of the limiting pieces (6) one by one, wherein the limiting pieces (6) are sequentially arranged on the inner wall of the first fixing sleeve (2) in a surrounding mode, the buckles (7) are sequentially arranged on the outer wall of the adjusting rod (4) in a surrounding mode through elastic pieces (8) and are matched with the limiting pieces (6) under the action of the elastic pieces (8), when the adjusting rod (4) rotates along the first direction, the limiting pieces (6) limit the buckles (7) to pass through the limiting pieces (6), and when the adjusting rod (4) rotates along the second direction, the buckles (7) sequentially pass through the limiting pieces (6);
the inner or outer surfaces of the two disk-shaped bodies (11) are provided with flow-blocking films.
2. The heart plugging device according to claim 1, wherein the limiting piece (6) is arranged to be gradually far away from a clamping block of the adjusting rod (4) along the first direction, the clamping buckle (7) is propped against the clamping block under the action of the elastic piece (8), a plurality of supporting rods (9) extending towards the first fixing sleeve (2) are arranged on the outer wall of the adjusting rod (4), the clamping buckle (7) is hinged with the end part of the supporting rod (9), and one end of the elastic piece (8) is connected to the adjusting rod (4), and the other end of the elastic piece is connected to the clamping buckle (7) and far away from the position of the adjusting rod (4).
3. The heart plugging device according to claim 1, wherein the limiting piece (6) is arranged to gradually approach the clamping groove of the adjusting rod (4) along the first direction, the buckle (7) is embedded in the clamping groove and is abutted against the opening of the clamping groove under the action of the elastic piece (8), and the adjacent clamping grooves are communicated and can be used for the buckle (7) to pass through.
4. The heart plugging device according to claim 1, wherein a protrusion is provided around the first end of the adjusting rod (4), the inner wall of the first fixing sleeve (2) is provided with a groove into which the protrusion is embedded, and the opening of the groove faces the adjusting rod (4).
5. The heart occlusion device according to claim 1, characterized in that the second end of the adjustment rod (4) is connected to the push rod (5) by means of a second thread, the first thread being opposite to the second thread.
6. The heart plugging device according to claim 1, wherein an interlayer is arranged between the inner wall and the outer wall of the first fixing sleeve (2) and the second fixing sleeve (3), and the closing-in of the alloy wire (13) is fixed in the interlayer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910166065.6A CN109700496B (en) | 2019-03-06 | 2019-03-06 | A heart occluder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910166065.6A CN109700496B (en) | 2019-03-06 | 2019-03-06 | A heart occluder |
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| CN109700496A CN109700496A (en) | 2019-05-03 |
| CN109700496B true CN109700496B (en) | 2025-04-25 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110974316B (en) * | 2019-11-19 | 2021-06-04 | 先健科技(深圳)有限公司 | Plugging device |
| CN112656460B (en) * | 2020-12-21 | 2022-01-28 | 中国医学科学院阜外医院 | Main pulmonary artery shunting device |
| CN112807035B (en) * | 2021-02-01 | 2022-03-11 | 孟自力 | Plugging device for valve leakage and interface adjusting device |
| CN116943016B (en) * | 2023-07-26 | 2025-10-31 | 航天泰心科技有限公司 | Fixer for heart implantation equipment and mounting tool thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102458263A (en) * | 2009-06-10 | 2012-05-16 | 卡拉格股份公司 | Occluder |
| CN209899497U (en) * | 2019-03-06 | 2020-01-07 | 中南大学湘雅医院 | a heart occluder |
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| US8162974B2 (en) * | 2006-02-02 | 2012-04-24 | Boston Scientific Scimed, Inc. | Occlusion apparatus, system, and method |
| WO2007115117A1 (en) * | 2006-03-31 | 2007-10-11 | Nmt Medical, Inc. | Adjustable length patent foramen ovale (pfo) occluder and catch system |
| CN2902201Y (en) * | 2006-04-24 | 2007-05-23 | 上海赢生医疗科技有限公司 | Spiral pushing-in handle structure for blood vessel intervention type apparatus |
| CN104546054B (en) * | 2015-01-19 | 2017-02-22 | 上海形状记忆合金材料有限公司 | Adjustable plugging device and release method |
| CN106923886B (en) * | 2015-12-31 | 2022-04-22 | 先健科技(深圳)有限公司 | Left atrial appendage occluder |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102458263A (en) * | 2009-06-10 | 2012-05-16 | 卡拉格股份公司 | Occluder |
| CN209899497U (en) * | 2019-03-06 | 2020-01-07 | 中南大学湘雅医院 | a heart occluder |
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