CN220695307U - Plugging device - Google Patents

Abstract

The utility model relates to a plugging device, comprising a fixing part for fixing the plugging device at a preset position and a sealing part for sealing, wherein the fixing part comprises a supporting part and at least one anchoring structure, the supporting part comprises a supporting surface woven by at least one first woven wire, and at least one part of at least one anchoring structure is connected with at least one second woven wire or formed by at least one second woven wire. The setting like this can make the anchor structure because its pierces and fixes the stress that the auricle inner wall passed and is shared by the second braiding silk, on the other hand, the deformation that the anchor structure passed also can be preferentially by the second braiding silk compensation to avoid the supporting part that forms the holding surface to appear too big deformation, guaranteed the stability of supporting part then, make the supporting part have better supporting effect and adherence all the time, guarantee the shutoff effect of shutoff device.

Description

Plugging device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a plugging device.

Background

In recent years, in patients with non-valve ward fibrillation, 90% of the strokes due to atrial fibrillation originate from the left atrial appendage. When clinical data shows atrial fibrillation, removal of the left atrial appendage during cardiac surgery can reduce the incidence of cerebral stroke, suggesting a risk of left atrial appendage in thromboembolism. Since the left atrial appendage is the thrombus, plugging the left atrial appendage opening eliminates the basis for thrombus formation in the left atrial appendage. Generally, left atrial appendage occlusion by a left atrial appendage occlusion device is an effective way to prevent cerebral stroke caused by atrial fibrillation.

In order to effectively seal the left auricle, the left auricle sealing device needs to be implanted into the left auricle for a long time so as to realize the sealing effect. Therefore, the left auricle occluder needs to have a certain anchoring structure, so that the left auricle occluder can be stably occluded in the left auricle opening for a long time, and the problems of instrument embolism and the like caused by falling off of the left auricle occluder are avoided.

In order to realize the long-term stability of the left auricle occluder in the left auricle opening, a plurality of anchoring structures with sharp head ends, such as anchor thorns or anchor hooks, are usually arranged on the supporting part of the left auricle occluder (the junction of the left auricle occluder and the auricle wall) so as to penetrate into the auricle wall, thereby realizing the long-term implantation stability. Meanwhile, the auricle moves along with the heart in a contraction and relaxation mode, the anchoring structure ensures the close fit between the plugging device and the inner wall of the left auricle, but the plugging device deforms along with the auricle to generate stress between the plugging device and the auricle, and the auricle is damaged due to the excessively concentrated stress.

The net structure is more favorable for the stress distribution compared with the rod structure, but the blocking device needs to be sheathed and released, the net structure needs to ensure necessary flexibility, and the supporting force of the anchoring structure is inevitably reduced, so that the problem that the net structure is easy to fall off is caused, and further, the stress of the anchoring position of the anchoring structure is larger than that of other positions, the conventional net structure has insufficient stress distribution capacity, so that the deformation of the position of the anchoring structure is larger, and the risk of detachment of the blocking device is further increased.

Disclosure of Invention

Based on this, it is necessary to provide a new plugging device for solving the problem that the plugging device is easy to fall off due to the mesh structure arranged for reducing the damage to the inner wall of the left auricle in the prior art.

The utility model provides a plugging device, includes continuous fixed part and sealing part, the fixed part include supporting part and with a plurality of anchor structures that the supporting part links to each other, the supporting part include weave by a plurality of first braided wire form latticed holding surface and a plurality of first braided wire link that gathers, under natural state, anchor structure's tip is located the outside of holding surface, at least one second braided wire is connected to anchor structure's at least part, perhaps, anchor structure is by at least one the second braided wire forms, the second braided wire with at least one first braided wire passes through at least one connecting piece and connects.

In one embodiment, when the anchoring structure is formed from at least one of the second braided wires, the ends of the second braided wires extend obliquely outward to form the anchoring structure.

In one embodiment, the connection end is connected to the sealing portion, and the net structure formed by the plurality of first braided wires of the supporting portion is spread radially outwards from the connection end and extends towards the distal end, and then extends towards the sealing portion side after being turned outwards.

In one embodiment, the distal ends of the second braided wires extend obliquely outward relative to the first braided wires after passing out of the connector to form an anchoring structure.

In one embodiment, the plurality of first braided wires includes first wires extending in a first direction and second wires extending in a second direction that are stacked on top of each other, at least a portion of the second braided wires contacting or being substantially parallel to at least a portion of the first wires, the first wires being connected to the second braided wires by the connector.

In one embodiment, the length of the second braided wire in contact with or substantially parallel to the first braided wire exceeds 1/2 of the total length of the second braided wire extending from the connecting end.

In one embodiment, the length of the second braided wire in contact with or substantially parallel to the first braided wire from the connecting end to the connecting member exceeds 1/2 of the total length of the second braided wire extending from the connecting end.

In one embodiment, a second wire closest to the proximal end of the connector is located between the first wire and the second braided wire, and/or the second wire is in contact with both the first wire and the anchoring structure at all times in its natural state, and/or the anchoring result is greater than the distance between the second wire and an adjacent wire on the proximal side of the second wire over the length of the second wire.

In one embodiment, the connector includes a first channel through which a first braided wire passes and a second channel through which the second braided wire passes, the first channel and the second channel being parallel to each other.

In one embodiment, the connector includes a first sub-piece and a second sub-piece, the first sub-piece being closer to the end of the second braided wire than the second sub-piece.

In one embodiment, the first sub-component is provided only on the first braided wire.

In one embodiment, the second sub-member connects the first braided wire and the second braided wire.

In one embodiment, the connector includes a flexible stop member, the flexible stop member being disposed around at least the first braided wire.

In one embodiment, the first and second sub-members are connected to each other or integrally formed.

In one embodiment, the number of the second braided wires is a plurality, and the plurality of the second braided wires are uniformly distributed on the supporting surface.

In one embodiment, the extending directions of the plurality of second braided wires each extend in a clockwise or counterclockwise direction.

In one embodiment, the proximal side of the first braided wire is provided with an annular binding member, and the first braided wire extends from the proximal end, passes through the inner side of the binding member, is further contracted by the binding member, and is then radially unfolded.

In one embodiment, a film body is provided on the outer side of the fixing portion, and covers at least a part of the fixing portion.

In one embodiment, the ends of the second braided filaments pass through the film body.

In one embodiment, at least a portion of the film body is located between the first braided wire and the second braided wire.

In one embodiment, the film body is secured to the outer surface of the first braided wire by at least one flexible member.

In one embodiment, a first flexible member is provided on the distal side of the connector, the first flexible member connecting the first braided wire, the second braided wire and the film body.

In one embodiment, the proximal side of the connector is provided with a second flexible member that connects only the first braided wire with the film body.

In one embodiment, the first flexible member and the second flexible member are connected to each other or are different portions of the same flexible member.

According to the plugging device provided by the utility model, the supporting part comprising the supporting surface formed by braiding at least one first braiding wire and the anchoring structure connected with the second braiding wire or formed by the second braiding wire are arranged, and the second braiding wire is connected with at least one first braiding wire through the connecting piece, so that the stress transmitted by the anchoring structure due to penetration and fixation of the anchoring structure on the inner wall of the auricle is shared by the second braiding wire, and on the other hand, the deformation transmitted by the anchoring structure is preferentially compensated by the second braiding wire, so that the excessive deformation of the supporting part forming the supporting surface is avoided, the stability of the supporting part is ensured, the supporting part always has good supporting effect and adherence, and the plugging effect of the plugging device is ensured.

Drawings

FIG. 1 is a front view of the plugging device in embodiment 1 of the present utility model;

FIG. 2 is a top view of the occluding device of example 1 of the present utility model;

FIG. 3 is a front view of the plugging device in the embodiment 1 of the present utility model taken along the section line A-A in FIG. 2;

FIG. 4 is an exploded view of the plugging device of example 1 of the present utility model;

FIG. 5 is a schematic diagram showing the knitting of the plugging device in example 1 of the present utility model;

FIG. 6 is a schematic view of the braiding of an occluding device in accordance with another embodiment of the present utility model;

fig. 7 is a schematic structural view of an occlusion device in embodiment 2 of the present utility model.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the field of interventional medical devices, the end of a medical device implanted in a human or animal body closer to an operator is generally referred to as a "proximal end", the end farther from the operator is generally referred to as a "distal end", and the "proximal end" and the "distal end" of any component of the medical device are defined according to this principle. "axial" generally refers to the longitudinal direction of a medical device when delivered, and "radial" generally refers to the direction of the medical device perpendicular to its "axial" direction, and defines the "axial" and "radial" directions of any component of the medical device in accordance with this principle.

The technical scheme of the utility model will be further described in detail below with reference to specific examples.

Example 1

Fig. 1 to 5 show a front view of the plugging device 100 in embodiment 1 of the present utility model, fig. 2 shows a top view of the plugging device 100 in embodiment 1 of the present utility model, fig. 3 shows a front view of the plugging device 100 of the present utility model taken along a section line A-A in fig. 2, and fig. 4 shows an exploded view of the plugging device 100 in embodiment 1 of the present utility model taken along the section line A-A.

The occlusion device comprises a fixation part 10 and a sealing part 20 connected to the fixation part 10, the sealing part 20 and the fixation part 10 being arranged at intervals in the axial direction of the occlusion device 100. The sealing portion 20 is located at the proximal end of the occluding device 100 and the securing portion 10 is located at the distal end of the occluding device 100. The occluding device 100 has a compressed state housed within the sheath for delivery and a deployed state shown in figure 1 after extending from the distal end of the sheath and self-expanding deployment. The configuration of the occluding device 100 after release within the left atrial appendage lumen is identical or substantially identical to that of figure 1.

The sealing part 20 is formed by weaving a plurality of woven wires into a net pipe, and the two ends of the net pipe are respectively closed and fixed by a sealing part distal bolt head. The mesh tube is then heat-set into a disk, column, plug, or the like shape, thereby obtaining a sealing portion 20 for sealing the left atrial appendage opening. The inside of the sealing portion 20 is provided with at least one layer of film body (not shown in the drawings), the edges of which are fixed to the woven wires at the edges of the sealing portion 20. The membrane body serves to block blood flow from one side of the seal 20 to the other to prevent blood flow between the left atrial appendage and the left atrium.

The fixing portion 10 includes a fixing portion connecting member 11 and a supporting portion 12, and a distal plug of the sealing portion 20 is fixed to the fixing portion connecting member 11. The support 12 of the fixing portion 10 may be formed by cutting a metal alloy tube or a polymer tube, or may be formed by braiding or winding a braided wire.

In this embodiment, the supporting portion 12 is preferably a braided structure, and in combination with fig. 5, fig. 5 is a schematic braiding diagram of the plugging device 100 in embodiment 1 of the present utility model, the supporting portion 12 includes at least one first braided wire 121, a material of the first braided wire 121 is nickel titanium wire, and is woven into a mesh structure by braiding, it should be noted that, for the supporting portion 12, the first braided wire 121 of the supporting portion 12 is converged at a proximal end, which is denoted as a connection end, and preferably converged at a position of the connection piece 11, and a distal end of the supporting portion 12 may be similarly converged, in this embodiment, the first braided wire 121 at the proximal end of the supporting portion 12 is radially extended outwards from the connection end and extends a distance towards the distal end, and is turned outwards towards the direction of the sealing portion 20, thereby forming a supporting surface for contacting with and supporting the wall of the left auricle cavity.

In another embodiment, the first braided wire 121 at the proximal end of the support portion 12 is radially outwardly expanded from the connecting end and distally extended a distance, and after being turned outwardly in the direction of the sealing portion 20, the distal end of the support portion 12 is bent inwardly to prevent the distal end of the support portion 12 from being worn against the wall of the left atrial appendage after being released.

In another embodiment, the proximal and distal ends of the support 12 are convergent, respectively, such that the support 12 is in a solid of revolution configuration.

In this embodiment, the supporting portion 12 may be provided with an anchor 13, where the anchor 13 protrudes outward after the plugging device 100 is released, and its free end pierces the inner wall of the left atrial appendage obliquely outward, so as to fix the plugging device 100 in a preset position as a whole, thereby defining the position of the sealing portion 20.

In general, the anchor 13 comprises a sharp anchoring structure, the tip of the anchoring penetrating into the inner wall of the left atrial appendage, so that the fixing portion 10 is stably anchored to the inner wall of the left atrial appendage, such that the occlusion device 100 achieves occlusion of the mouth of the left atrial appendage.

In the present embodiment, the anchor 13 includes at least one second braided wire 122, that is, formed of the second braided wire 122, and the second braided wire 122 and the first braided wire 121 are simultaneously emitted from the connection end position, and the distal end (that is, the free end) of the second braided wire 122 is obliquely extended toward the outside, forming the anchor 13, that is, an anchor structure.

In another embodiment, the anchor 13 is provided on the second braided wire 122 by welding, heat staking, entanglement, bonding, or the like.

In another embodiment, the anchoring structure root of the anchor 13 spans the first braided wire 121 and the second braided wire 122, that is, at least a portion of the anchoring structure is disposed on the second braided wire 122, and it is also considered that the second braided wire 122 includes at least a portion of the anchoring structure, it should be noted that the second braided wire 122 can both split the pressure of the inner wall of the left atrial appendage to enhance the radial support of the anchoring portion 10 and also serve as a partial support foundation for the anchoring structure to facilitate penetration and maintenance of the anchoring structure at the inner wall of the left atrial appendage.

It should be noted that, when the anchor 13 is disposed on the second braided wire 122 or formed by the second braided wire 122, the stress transmitted by the inner wall of the ear due to the penetration and fixation of the anchor 13 can be shared by the second braided wire 122, and on the other hand, the deformation transmitted by the anchor 13 can be preferentially compensated by the second braided wire 122, so that the support portion 12 forming the support surface is prevented from being excessively deformed, and the stability of the support portion is ensured, so that the support portion always has better supporting effect and adherence, and the plugging effect of the plugging device is ensured.

For at least one second braided wire 122, at least one section of the single second braided wire 122 extends along the track of a certain first braided wire 121, in this embodiment, the proximal ends of the first braided wire 121 and the second braided wire 122 are both fixed, the second braided wire 122 is connected to the first braided wire 121 by a fixing member 123, the number of the fixing members 123 is not limited, preferably a steel sleeve (may also be a flexible member), it should be noted that the first braided wire 121 and the second braided wire which are connected to each other can bear the stress of each other and provide a supporting force for each other, and the deformation and the stress of the anchoring structure are preferentially compensated and distributed by the second braided wire 122 itself, and then further transmitted to the position of the first braided wire 121 through the fixing member 123 and then distributed to the whole supporting portion, thus compensating the deformation of the anchoring structure and distributing the local stress.

Further, at least a section of the second braided wire 122 is intertwined or abutted with the first braided wire 121 so that the first braided wire 121 and the second braided wire 122 have a strong radial supporting force at a position where they are in contact with each other, and further, the length of the second braided wire 122 in contact with the first braided wire 121 exceeds 1/2 of the total length of the second braided wire 122 extending from the connecting end, i.e., sufficient radial supporting force can be provided, preferably, in another embodiment, the end portion of the second braided wire 122 away from the fixing member 123 is defined as an anchor structure defining a distal end extending from the connecting end to the fixing member 123, and the length of the second braided wire 122 in contact with the first braided wire 121 exceeds 1/2 of the total length of the second braided wire 122 extending from the proximal end.

The ends of the second braided wire 122 are separated from the first braided wire 121, and the ends of the second braided wire 122 extend obliquely outward relative to the first braided wire 121, preferably the first braided wire 121 includes first and second wires 1211 and 1212 that are interdigitated, stacked, and the first and second wires 1211 and 1212 may be different first braided wires 121 or different segments of the first braided wire 121. The first wires 1211 extending along a certain direction and the second wires 1212 extending along another direction are mutually inserted and staggered to form a woven mesh, wherein the first wires 1211 and the second woven wires 122 are connected through the fixing member 123, at the same time, at the proximal end of the fixing member 123, the first wires 1211 pass through the inner side of the second wires 1212 closest to the proximal end of the fixing member 123, the second woven wires 122 pass through the outer side of the second wires 1212 closest to the proximal end of the fixing member 123, so that the first wires 1211 are separated from the second woven wires 122 at the proximal end of the fixing member 123, and the first wires 1212 support the end of the second woven wires 122 at the proximal end of the fixing member 123, and meanwhile, it is pointed out that, as the first wires 1211 pass through the inner side of the second wires 1212 closest to the proximal end of the fixing member 123, the first wires 1211 also support the second wires 1212 from the inner side to the outer side, so that the support of the second woven wires 122 is further improved. On this basis, therefore, it is preferable that the second wire 1212 always contacts the first wire 1211 and the anchor 13 at the same time in a natural state, thereby achieving support of the anchor 13 and separation of the first wire 1211.

Preferably, the length of the anchor 13 passing over the second wire 1212 is greater than the distance between the second wire 1212 and the adjacent wire on the proximal side thereof, so as to avoid penetration into the gap between the second wire 1212 and the adjacent wire on the proximal side thereof when the anchor 13 is deformed under force, thereby allowing the free end of the anchor 13 to perform the anchoring function at all times.

In another embodiment, the fixing member 123 includes a first passage through which the first braid wire 121 passes and a second passage through which the second braid wire 122 passes, the first passage being parallel to the second passage, and functions to prevent the end position of the second braid wire 122 from being intertwined with the first braid wire 121.

In another embodiment, the first and second braided wires 121 and 122 are connected by at least 2 connectors, and the proximal and distal sides of the anchor 123 are provided with connection locations. Preferably, referring to fig. 6, fig. 6 is a schematic drawing showing the knitting of the plugging device according to another embodiment of the present utility model, in which a first sub-member 1231 located at the distal end side of the fixing member 123 connects the first knitting yarn 121 and the second knitting yarn 122, that is, the first knitting yarn 121 and the second knitting yarn 122 are fixed, and a second sub-member 1232 located at the proximal end side of the fixing member 123 connects only the first knitting yarn 121, in which the first sub-member 1231 located at the distal end side of the fixing member 123 functions to connect the first knitting yarn 121 and the second knitting yarn 122, so that the first knitting yarn 121 and the second knitting yarn 122 are combined to thereby promote the radial supporting force of the whole fixing portion 10, and the second sub-member 1232 located at the proximal end side of the fixing member 123 functions to separate the distal end of the second knitting yarn 122 from the first knitting yarn 121, that is more advantageous for stabilizing the shape of the anchor structure.

Furthermore, in another embodiment, the first and second sub-members 1231, 1232 may be either rigid structures, such as steel sleeves, metal rings, etc., or flexible structures. The first and second sub-members 1231 and 1232 are connected to each other, or integrally formed.

In another embodiment, the plurality of second braided wires 122 are uniformly distributed, ensuring uniform stress of the fixing portion 11, and ensuring an anchored state of the fixing portion 11 in the circumferential direction.

In another embodiment, the extending directions of the plurality of second braided wires 122 extend simultaneously in a clockwise or counterclockwise direction to avoid stress concentration somewhere in the fixing portion 11.

In another embodiment, at least a segment of the second braided wire 122 is spatially parallel to the trajectory of the first braided wire 121.

In another embodiment, to enhance the radial supporting force of the fixing portion 10, a ring-shaped binding member may be added to the proximal end of the first braided wire 121, and after the first braided wire 121 extends from the connecting end, it passes through the inner side of the binding member, and further is contracted by the binding member and then is spread out in the radial direction, so that the distal end of the supporting portion 12 is smoother, the concave area is smaller, and a larger space is provided for braiding the first braided wire 121.

Example 2

As an optimization of embodiment 1, the plugging device of embodiment 2 is different from embodiment 1 in that, referring to fig. 7, a film body 30 is provided on the surface of the fixing portion 30 of embodiment 2, and the film body 30 covers at least a part of the fixing portion 10.

The film body 30 is made of PTFE or PET material or material chemically modified by the material, so that good biocompatibility can be ensured, and rejection reaction can not occur after implantation.

Specifically, the film body 30 is covered on the outer surface of the first braided wire 121 by means of stitching, heat-fusing, or the like, while at the same time, the tip of the second braided wire 122 passes through the film body 30 and extends toward the outside.

In another embodiment, at least a portion of the film body 30 is located between the first braided wire 121 and the second braided wire 122 from the proximal end of the first braided wire 121 to the location of the anchor 123.

In another embodiment, the film body 30 is sewn to the outer surface of the first braided wire 121 by a medical suture, and both the proximal and distal sides of the fixing member 123 are provided with sewing points. Preferably, the suture line at the distal end side of the fixing member 123 connects the first and second braided wires 121 and 122, that is, the first and second braided wires 121 and 122 are simultaneously fixed to the film body 30, and the suture line at the proximal end side of the fixing member 123 only connects the first braided wire 121 to the film body 30, which has the effect that the suture line at the distal end side of the fixing member 123 plays a role of limiting the film body 30 and also plays a role of connecting the first and second braided wires 121 and 122, so that the first and second braided wires 121 and 122 are combined to thereby promote the radial supporting force of the whole fixing portion 10, and the suture line at the proximal end side of the fixing member 123 plays a role of limiting the film body 30 and also plays a role of separating the end of the second braided wire 122 from the first braided wire 121, thereby being more beneficial to the stability of the end of the second braided wire 122, that is, the shape of the anchor structure.

Further, in another embodiment, the stitching point on the distal side of the fixing member 123 and the stitching point on the proximal side of the fixing member 123 are stitched by one stitching line at the same time, so that the fit between the position of the fixing member 123 and the film body 30 is ensured, and the excessive gap or insufficient fit between the second braided wire 122 and the film body 30 when the proximal end of the fixing member 123 deflects is avoided, and the influence on the integrity of the film body 30 and the smooth state of the surface is avoided.

In another embodiment, the suture on the distal side of the anchor 123 and the suture on the proximal side of the anchor 123 are different portions of the same suture or are interconnected by the remaining sutures.

It should be noted that the technical features of the above-described embodiments may be combined in any manner, and may be applied to the various left atrial appendage occlusion devices described above and left atrial appendage occlusion devices having similar structures. For the sake of brevity, all of the possible combinations of the features of the above embodiments are not described, however, the scope of the description should be considered as if there are no contradictions between the combinations of the features.

The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (19)

1. The utility model provides a plugging device, includes fixed part and sealing part that links to each other, its characterized in that, fixed part include supporting part and with a plurality of anchor structures that the supporting part links to each other, the supporting part include by the net form holding surface that many first braided wire were woven and a plurality of the link that first braided wire assembled, under the natural state, anchor structure's tip stretches out the outside of holding surface, at least a part of anchor structure connects at least one second braided wire, perhaps, anchor structure is by at least one the second braided wire forms, the second braided wire with at least one first braided wire passes through at least one connecting piece and connects.

2. The occlusion device of claim 1, wherein when said anchoring structure is formed from at least one of said second braided wires, ends of said second braided wires extend obliquely outward forming said anchoring structure.

3. The occlusion device of claim 1, wherein said connection end is connected to said sealing portion, and wherein a mesh structure formed by a plurality of said first braided wires of said support portion extends radially outwardly from said connection end and distally and then extends toward said sealing portion side after being turned outwardly.

4. The occlusion device of claim 2, wherein the distal ends of said second braided wires extend obliquely outward relative to said first braided wires after being threaded out of said connector to form an anchoring structure.

5. The occlusion device of claim 1, wherein a plurality of said first braided wires comprise first wires extending in a first direction and second wires extending in a second direction that are superimposed on each other, at least a portion of said second braided wires contacting or being substantially parallel to at least a portion of said first wires, said first wires being connected to said second braided wires by said connector.

6. The occlusion device of claim 5, wherein a length of said second braided wire in contact with or substantially parallel to said first braided wire exceeds 1/2 of a total length of said second braided wire extending from said connecting end.

7. The occlusion device of claim 5, wherein, from said connection end to said connection member, said second braided wire is in contact with or substantially parallel to said first braided wire for a length exceeding 1/2 of a total length of said second braided wire extending from said connection end.

8. The occlusion device of claim 5, wherein a second wire closest to a proximal end of said connector is located between said first wire and said second braided wire, and/or wherein said second wire is in natural condition in contact with said first wire and said anchoring structure at all times, and/or wherein a length of said anchoring structure across said second wire is greater than a spacing of said second wire from an adjacent wire located on a proximal side of said second wire.

9. The occlusion device of claim 5, wherein said connector comprises a first channel for passing a first braided wire therethrough and a second channel for passing said second braided wire therethrough, said first and second channels being parallel to each other.

10. The occlusion device of any of claims 1-9, wherein said connector comprises a first sub-piece and a second sub-piece, said first sub-piece being closer to an end of said second braided wire than said second sub-piece.

11. The occlusion device of claim 10, wherein said first sub-member is disposed only on said first braided wire; the second sub-member connects the first braided wire and the second braided wire.

12. The occlusion device of any of claims 1-9, wherein said connector comprises a flexible stop member, said flexible stop member being disposed around at least said first braided wire.

13. The occlusion device of any of claims 1-9, wherein said second plurality of braided filaments is a plurality, said plurality of second braided filaments being evenly distributed on said support surface; the extending directions of the plurality of second braided wires extend along the clockwise direction or the anticlockwise direction.

14. The occlusion device of any of claims 1-9, wherein a proximal side of said first braided wire is provided with an annular tether, said first braided wire extending proximally past an inner side of said tether, further cinched via said tether and then radially deployed.

15. The occlusion device of any of claims 1-9, wherein a thin film body is provided outside of said fixation portion, said thin film body covering at least a portion of said fixation portion.

16. The occlusion device of claim 15, wherein at least a portion of said film body is positioned between said first braided wire and said second braided wire.

17. The occlusion device of claim 15, wherein a distal side of said connector is provided with a first flexible member connecting a first braided wire, said second braided wire and said membrane body.

18. The occlusion device of claim 17, wherein a second flexible member is provided on a proximal side of said connector, said second flexible member connecting only said first braided wire with said membrane body.

19. The occlusion device of claim 18, wherein said first flexible member and said second flexible member are connected to each other or are different portions of the same flexible member.