Plugging device

Patent metadata

Field	Value
Publication number	US-12471897-B2
Application number	US-202118040180-A
Country	US
Kind code	B2
Filing date	Aug 11, 2021
Priority date	Aug 12, 2020
Publication date	Nov 18, 2025
Grant date	Nov 18, 2025

Abstract

A plugging device, including a first part, and a second part connected to the first part. The first part or the second part includes a plurality of braiding filaments and a gathering member; portions of the braiding filaments that are close to one ends of the braiding filaments cooperate to form a disc face. The plugging device further includes a film member. The film member at least covers part of an outer surface of the disc face; the gathering member includes an inner sleeve and an outer sleeve, both of which are hollow and sleeved; and one end of each braiding filament and at least part of a gathering region of the film member are all fixed to the gathering member.

First claim

The invention claimed is:

1 . A plugging device, comprising: a first part, and a second part connected to the first part, wherein the first part or the second part comprises a plurality of braiding filaments and a gathering member; portions of the braiding filaments that are proximate to one ends of the braiding filaments cooperate to form a disc face; the plugging device further comprises a film member; the film member at least covers part of an outer surface of the disc face; the gathering member comprises an inner sleeve and an outer sleeve, both the inner sleeve and outer sleeve are hollow and sleeved; and one end of each braiding filament and at least part of a gathering region of the film member are all fixed to the gathering member;
wherein an open pore is formed in the gathering region of the film member, and a portion of the film member that is enclosed to form the open pore is accommodated and fixed in the gathering member.

2 . The plugging device according to claim 1 , wherein one end of the gathering member is provided with an end cap connected to the inner sleeve; and the gathering region of the film member is at least partially accommodated or fixed between the end cap and the outer sleeve.

3 . The plugging device according to claim 1 , wherein at least a portion of the disc face that is proximate to the gathering member is perpendicular to a central axis of the gathering member.

4 . The plugging device according to claim 1 , wherein a thread or a clamping member is arranged on an inner wall of the inner sleeve.

5 . The plugging device according to claim 1 , wherein a limiting member which radially extends or has an included angle from a central axis of the inner sleeve is arranged in a cavity of the inner sleeve.

6 . The plugging device according to claim 1 , wherein the first part or the second part further comprises an extending member located at an edge of the first part or the second part; the film member further covers the extending member; and the extending member radially outwardly dilates the film member after being spread.

7 . The plugging device according to claim 1 , wherein a proximal end part of the inner sleeve and a proximal end part of the outer sleeve are enclosed to form a proximal inlet of the gathering member; a distal end part of the inner sleeve and a distal end part of the outer sleeve are enclosed to form a distal inlet of the gathering member; and one end of each of the plurality of braiding filaments is fixed between the inner sleeve and the outer sleeve after passing through the proximal inlet or the distal inlet of the gathering member.

8 . The plugging device according to claim 7 , wherein the gathering member is arranged at a proximal end of the first part or the second part; one end of each of the plurality of braiding filaments is a proximal end; when the proximal ends of the plurality of braiding filaments are received and fixed by the proximal inlet of the gathering member, the gathering region of the film member is at least partially fixed between the inner sleeve and the outer sleeve via the proximal inlet of the gathering member; or, when the proximal ends of the plurality of braiding filaments are received and fixed by the distal inlet of the gathering member, the gathering region of the film member is at least partially accommodated or fixed between the inner sleeve and the outer sleeve via the proximal inlet or the distal inlet of the gathering member.

9 . The plugging device according to claim 7 , wherein the gathering member is arranged at a distal end of the first part or the second part; one end of each of the plurality of braiding filaments is a distal end; when the distal ends of the plurality of braiding filaments are received and fixed by the proximal inlet of the gathering member, the gathering region of the film member is at least partially accommodated or fixed between the inner sleeve and the outer sleeve via the proximal inlet or the distal inlet of the gathering member; or, when the distal ends of the plurality of braiding filaments are received and fixed by the distal inlet of the gathering member, the gathering region of the film member is at least partially accommodated or fixed between the inner sleeve and the outer sleeve via the distal inlet of the gathering member.

10 . The plugging device according to claim 1 , wherein the gathering member further comprises an intermediate sleeve which is hollow and sleeved between the inner sleeve and the outer sleeve.

11 . The plugging device according to claim 10 , wherein one end of each of the plurality of braiding filaments is accommodated or fixed between the outer sleeve and the intermediate sleeve, or
one end of each of the plurality of braiding filaments is accommodated or fixed between the intermediate sleeve and the inner sleeve.

12 . The plugging device according to claim 11 , wherein the proximal end part of the outer sleeve and a proximal end part of the intermediate sleeve are enclosed to form an outer side proximal inlet of the gathering member, and the proximal end part of the intermediate sleeve and the proximal end part of the inner sleeve are enclosed to form an inner side proximal inlet of the gathering member; the distal end part of the outer sleeve and a distal end part of the intermediate sleeve are enclosed to form an outer side distal inlet of the gathering member; the distal end part of the intermediate sleeve and the distal end part of the inner sleeve are enclosed to form an inner side distal inlet of the gathering member; the gathering member is arranged at the proximal end of the first part or the second part; one end of each of the plurality of braiding filaments is a proximal end; and one end of each of the plurality of braiding filaments is accommodated or fixed to the gathering member after passing through one of the outer side proximal inlet, the outer side distal inlet, and the inner side distal inlet.

13 . The plugging device according to claim 11 , wherein the proximal end part of the outer sleeve and a proximal end part of the intermediate sleeve are enclosed to form an outer side proximal inlet of the gathering member, and the proximal end part of the intermediate sleeve and the proximal end part of the inner sleeve are enclosed to form an inner side proximal inlet of the gathering member; the distal end part of the outer sleeve and a distal end part of the intermediate sleeve are enclosed to form an outer side distal inlet of the gathering member; the distal end part of the intermediate sleeve and the distal end part of the inner sleeve are enclosed to form an inner side distal inlet of the gathering member; the gathering member is arranged at the distal end of the first part or the second part; one end of each of the plurality of braiding filaments is a distal end; and one end of each of the plurality of braiding filaments is accommodated or fixed to the gathering member after passing through one of the outer side proximal inlet, the inner side proximal inlet, and the outer side distal inlet.

14 . A plugging device, comprising: a first part, wherein the first part comprises a plurality of braiding filaments and a gathering member; one end of each braiding filament is fixed to the gathering member; the first part is provided with at least one disc face, one or more of the plurality of braiding filaments form a gathering portion by shape convergence; the gathering member is located in a space enclosed by the gathering portion; and at least one disc face formed by the cooperation of the gathering portion is flat and sealed;
wherein the gathering portion comprises a first gathering por

Assignees

• Lifetech Scient Shenzhen Co

Inventors

• Li Anning
• Liu Jianyong
• Tang Yuhua
• Jia Jia

Classifications

• A61B17/12163

  having a string of elements connected to each other · CPC title

• A61B17/12122

  within the heart (for closing a cardiac septal defect A61B17/0057) · CPC title

• A61B17/12177

  comprising additional materials, e.g. thrombogenic, having filaments, having fibers or being coated · CPC title

• A61B17/12031

  complete occlusion · CPC title

• A61B17/12172

  having a pre-set deployed three-dimensional shape (methods of manufacturing A61B2017/00526) · CPC title