CN220158322U - Vascular plug - Google Patents
Vascular plug Download PDFInfo
- Publication number
- CN220158322U CN220158322U CN202321526282.XU CN202321526282U CN220158322U CN 220158322 U CN220158322 U CN 220158322U CN 202321526282 U CN202321526282 U CN 202321526282U CN 220158322 U CN220158322 U CN 220158322U
- Authority
- CN
- China
- Prior art keywords
- plug
- plug body
- vascular
- distal end
- blood vessel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000002792 vascular Effects 0.000 title claims abstract description 27
- 210000004204 blood vessel Anatomy 0.000 claims abstract description 28
- 238000003466 welding Methods 0.000 claims abstract description 24
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 15
- 230000004888 barrier function Effects 0.000 claims description 10
- 206010028980 Neoplasm Diseases 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 230000017531 blood circulation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Abstract
The utility model relates to a vascular plug, which comprises a plug body woven by a plurality of memory alloy wires, wherein welding points of the memory alloy wires are positioned at the proximal end of the plug body, and the distal end of the plug body is free of welding points; when the plug body is released into a blood vessel, the distal end of the plug body is planar and perpendicular to the axis of the blood vessel. When the plug body is woven by the memory alloy wire, only a welding point is formed at the proximal end of the plug body, and the welding point is not formed at the distal end of the plug body, so that the distal end of the plug body forms a plane, and when the vascular plug is released into a blood vessel, the distal end of the plug body extends out of the sheath first, and the vascular plug is stabbed due to the fact that the distal end of the plug body does not have the welding point, so that the safety of an operation is ensured.
Description
Technical Field
The utility model belongs to the technical field of medical treatment, and particularly relates to a vascular plug.
Background
In tumor therapy, a vascular plug may be used to occlude the blood vessel supplying the tumor so that the tumor no longer grows.
The vascular plug is woven by the memory alloy wires, and the distal end and the proximal end are welded, so that the distal end of the vascular plug forms a welding point protruding towards the upstream side, and therefore, when the vascular plug is released, the distal end of the vascular plug extends out of the sheath, the situation that the welding point on the distal end is stabbed on the vascular wall possibly occurs, and the smooth operation is affected.
Disclosure of Invention
In view of this, the present utility model provides a vascular plug, wherein the distal end of the plug body is planar, and no welding point exists, so as to avoid the situation that the welding point punctures the vascular wall, and ensure the smooth operation.
The utility model adopts the technical scheme that:
a vascular plug comprises a plug body woven by a plurality of memory alloy wires, wherein welding points of the memory alloy wires are positioned at the proximal end of the plug body, and the distal end of the plug body is free of welding points;
when the plug body is released into a blood vessel, the distal end of the plug body is planar and perpendicular to the axis of the blood vessel.
Preferably, from far to near, the plug body comprises a plurality of plug segments connected in sequence.
Preferably, at least one layer of barrier mesh is also provided in the distal-most plug body, the plane of the barrier mesh being perpendicular to the axis when the plug body is released into the vessel.
Preferably, the barrier net is woven from memory alloy wires and integrally woven with the plug.
Preferably, the plug body is cylindrically shaped when released into a blood vessel.
Preferably, the plug body is in the shape of a truncated cone when released into a blood vessel.
Preferably, a threaded interface is formed on the welding point.
The utility model has the beneficial effects that:
when the plug body is woven by the memory alloy wire, only a welding point is formed at the proximal end of the plug body, and the welding point is not formed at the distal end of the plug body, so that the distal end of the plug body forms a plane, and when the vascular plug is released into a blood vessel, the distal end of the plug body extends out of the sheath first, and the vascular plug is stabbed due to the fact that the distal end of the plug body does not have the welding point, so that the safety of an operation is ensured.
Drawings
The above and other objects, features and advantages of the present utility model will become more apparent from the following description of embodiments of the present utility model with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural view of the present utility model.
Wherein: 1. the plug is split; 2. and (5) welding points.
Detailed Description
The present utility model is described below based on examples, but the present utility model is not limited to only these examples. In the following detailed description of the present utility model, certain specific details are set forth in order to avoid obscuring the present utility model, and in order to avoid obscuring the present utility model, well-known methods, procedures, flows, and components are not presented in detail.
Moreover, those of ordinary skill in the art will appreciate that the drawings are provided herein for illustrative purposes and that the drawings are not necessarily drawn to scale.
Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, it is the meaning of "including but not limited to".
In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
Based on the operation time, the side close to the patient is far, and the side close to the operator is near.
Referring to fig. 1, the utility model provides a vascular plug, which comprises a plug body woven by a plurality of memory alloy wires, wherein welding points 2 of the memory alloy wires are positioned at the proximal end of the plug body, and the distal end of the plug body is free of the welding points 2;
when the plug body is released into a blood vessel, the distal end of the plug body is planar and perpendicular to the axis of the blood vessel.
When the plug body is woven by the memory alloy wire, the welding point 2 is formed only at the proximal end of the plug body, and the welding point 2 is not formed at the distal end of the plug body, so that the distal end of the plug body forms a plane, and when the vascular plug is released into a blood vessel, the distal end of the plug body extends out of the sheath, and the vascular plug is punctured due to the fact that the distal end of the plug body does not have the welding point 2, so that the safety of an operation is ensured.
From far to near, the plug body comprises a plurality of plug components 1 that are connected in proper order. For example, two plug sub-bodies 1 are included, so that the blood vessel is subjected to multi-layer blockage, and the blockage effect on the blood vessel is improved.
Of course, the number of the plug segments 1 may be three, four or more.
Further, at least one layer of barrier net is arranged in the most distal plug body 1, and the plane of the barrier net is perpendicular to the axis when the plug body is released into the blood vessel.
The blocking net is arranged in the most distal plug body 1, so that the blocking effect of the most distal plug body 1 on blood flow can be further improved, and the aim of blocking the blood flow is fulfilled.
The barrier net is formed by weaving memory alloy wires and is integrally woven with the plug split body 1. So that when the plug body is unfolded, the barrier net is unfolded together, thereby cutting off the blood flow in the blood vessel.
When the plug body is released into a blood vessel, the plug body 1 is cylindrical or in a round table shape.
Each plug split 1 is cylindrical or in a round table shape, so that each plug split 1 can be effectively matched with the inner wall of a blood vessel.
The welding point 2 is provided with a threaded interface which can be conveniently connected with a conveying rod, so that the blood vessel plug is conveyed to a specific position in the blood vessel, and after the blood vessel plug is released into the blood vessel, the conveying rod is separated from the blood vessel plug by rotating the conveying rod, so that the blood vessel plug is positioned in the blood vessel to block the flow of blood.
It will be understood that the above-described embodiments are merely illustrative and not restrictive, and that all obvious or equivalent modifications and substitutions to the details given above may be made by those skilled in the art without departing from the underlying principles of the utility model, are intended to be included within the scope of the appended claims.
Claims (7)
1. The vascular plug is characterized by comprising a plug body woven by a plurality of memory alloy wires, wherein welding points of the memory alloy wires are positioned at the proximal end of the plug body, and the distal end of the plug body is free of welding points;
when the plug body is released into a blood vessel, the distal end of the plug body is planar and perpendicular to the axis of the blood vessel.
2. The vascular plug of claim 1, wherein the plug body comprises a plurality of plug segments connected in sequence from distal to proximal.
3. A vascular plug according to claim 2, wherein at least one layer of barrier mesh is further provided in the distal-most plug body, the barrier mesh lying in a plane perpendicular to the axis when the plug body is released into the vessel.
4. A vascular plug as claimed in claim 3, wherein the barrier mesh is woven from memory alloy wires and integrally woven with the plug.
5. The vascular plug of claim 2, wherein the plug body is cylindrically shaped when released into a blood vessel.
6. The vascular plug of claim 2, wherein the plug body is frustoconical upon release into a vessel.
7. The vascular plug of claim 1, wherein the weld has a threaded interface formed thereon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321526282.XU CN220158322U (en) | 2023-06-15 | 2023-06-15 | Vascular plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321526282.XU CN220158322U (en) | 2023-06-15 | 2023-06-15 | Vascular plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220158322U true CN220158322U (en) | 2023-12-12 |
Family
ID=89063894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321526282.XU Active CN220158322U (en) | 2023-06-15 | 2023-06-15 | Vascular plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220158322U (en) |
-
2023
- 2023-06-15 CN CN202321526282.XU patent/CN220158322U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |