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Plugging device

A technology of a blocking device and a blocking piece, applied in the field of medical devices, can solve the problems of easy displacement, falling off, limited clamping force of the occluder, etc., and achieve the effect of not easy to shift and good clamping force

Pending Publication Date: 2022-03-25
JIANGSU PNP MEDTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of occluder has limited clamping force, is prone to displacement, and even has the risk of falling off

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] refer to Figure 1-2 , the present invention provides a blocking device, including a first blocking member 110 and a second blocking member 120, and the first blocking member 110 and the second blocking member 120 are arranged opposite to each other.

[0042] In this embodiment, the first blocking member 110 includes a first clamping portion 111 and a first connecting portion 112, and the first connecting portion 112 is disposed on the side of the first clamping portion 111 facing the second blocking member 120 The second blocking member 120 includes a second clamping portion 121 and a second connecting portion 122 , and the second connecting portion 122 is disposed on a side of the second clamping portion 121 facing the first blocking member 110 . The first connecting part 112 and the second connecting part 122 are connected and arranged in the defect space on the interatrial septum, and the first clamping part 111 and the second clamping part 121 are used for clamping...

Embodiment 2

[0055] refer to Figure 3-4 , this embodiment is an adjustment made on the basis of embodiment 1.

[0056] In this embodiment, the first blocking member 110 and the second blocking member 120 adopt a single-layer solid structure, which is thinner than the double-layer hollow structure, and has the advantages of less material, low cost, small footprint, and easier installation. Loaded into the conveyor.

[0057] In this embodiment, the rest of the structure of the blocking device can refer to the description in Embodiment 1, which is not limited here.

Embodiment 3

[0059] refer to Figure 5-8 , this embodiment is an adjustment made on the basis of embodiment 1.

[0060] In this embodiment, the first clamping portion 111 and the second clamping portion 121 are umbrella-shaped in this embodiment.

[0061] Specifically, the first clamping part 111 includes a plurality of first leaflets 113, and the plurality of first leaflets 113 are evenly distributed around the first connecting part in the circumferential direction, and the adjacent first leaflets 113 are overlapped and crossed to form an umbrella-shaped first leaflet 113. A clamping portion 111; similarly, the second clamping portion 121 also includes a plurality of second leaflets 123, the plurality of second leaflets 123 are evenly distributed around the second connecting portion 122 and overlap and cross between adjacent second leaflets 123 The arrangement together constitutes an umbrella-shaped second clamping portion 121 .

[0062] Wherein, the first leaflet 113 and the second lea...

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PUM

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Abstract

The invention provides a plugging device. The plugging device comprises a first plugging piece and a second plugging piece which are oppositely arranged; the first blocking piece comprises a deformable first clamping part, and a first connecting part is arranged on the side, facing the second blocking piece, of the first clamping part; the second plugging piece comprises a deformable second clamping part, and a second connecting part is arranged on the side, facing the first plugging piece, of the second clamping part; in the opposite direction of the first plugging piece and the second plugging piece, the size of the first connecting part is larger than that of the first clamping part, and the size of the second connecting part is larger than that of the second clamping part; the first connecting part and the second connecting part are connected and located in a defect gap to be blocked, and the first clamping part and the second clamping part are clamped on the wall face of the periphery of the gap.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a blocking device. Background technique [0002] A heart defect occluder is an implantable medical device for the treatment of congenital heart defects. In 1974, King and MiRRs completed the transcatheter interventional treatment of secundum atrial septal defect (atriaR septaR defect, ASD) for the first time. Since then, with the continuous improvement of occlusion devices, especially since 1997, with the AmpRatzer nickel-titanium alloy With the advent of braided occluders, nickel-titanium alloy braided occluders are widely used in atrial septal defect (ASD), ventricular septal defect (VSD), patent ductus arteriosus (PDA) and patent foramen ovale (PFO). Cardiac interventional therapy. At present, minimally invasive transcatheter occluder surgery is an important method for the treatment of congenital heart diseases such as ASD, VSD, PDA and PFO. [0003] The occluder in...

Claims

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Application Information

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IPC IPC(8): A61B17/00A61B17/12
CPCA61B17/0057A61B17/12027A61B17/12122A61B17/12159A61B2017/00575A61B2017/00584
Inventor 左斌
Owner JIANGSU PNP MEDTECH CO LTD