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Tunnel-like oval round hole non-closed occlusion instrument

A technology of foramen ovale and tunnel, which is applied in the field of medical devices, can solve the problems that the disk surface cannot be blocked, the stability of the foramen ovale is not good, and the waist cannot be squeezed, etc., so as to achieve effectiveness and stability, increase The effect of hooking stability and increasing stability

Pending Publication Date: 2017-08-25
SHANGHAI SHAPE MEMORY ALLOY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: provide a tunnel-shaped patent foramen ovale occlusion device with good effectiveness and stability, and solve the problem of AMPLAZER (mushroom umbrella) type foramen ovale occluder The foramen ovale occluder, the waist cannot be squeezed, and the disk surface cannot achieve the sealing effect, and it is aimed at the problem of poor stability of the foramen ovale that is close to the superior and inferior vena cava or main pulmonary artery

Method used

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  • Tunnel-like oval round hole non-closed occlusion instrument
  • Tunnel-like oval round hole non-closed occlusion instrument
  • Tunnel-like oval round hole non-closed occlusion instrument

Examples

Experimental program
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Effect test

Embodiment 1

[0047] The present invention is a tunnel-shaped patent foramen ovale occlusion device, which includes two disk surfaces 1 and a flat waist 2 connecting the two disk surfaces 1. The connecting waist in the present invention is designed flat, that is, the flat waist 2, which fits The structure of the tunnel-shaped patent foramen ovale avoids large deformation caused by instruments; the positions of the two disks 1 partially overlap, the two disks 1 and the flat waist 2 are connected obliquely, and the two disks 1 are parallel to each other. Such as Figure 3a , Figure 3b As shown, the shape of the flat waist 2 is an outer drum, the shape of the disk 1 is a perfect circle, and the connection position between the disk 1 and the flat waist 2 is located at the center of the disk 1; the diameter of the disk 1 is 10mm-30mm; There is a layer of flow blocking film, and the material of the flow blocking film is polyester fiber or polytetrafluoroethylene. The ligation steel sheath 3 is...

Embodiment 2

[0050] Such as Figure 4a , Figure 4b As shown, the connection position between the disk surface 1 and the flat waist 2 deviates from the center position of the disk surface 1, and the offset is 4-20mm; Avoid fraying vessels; the other side is longer for increased clamp stability.

[0051] Others are the same as in Example 1.

Embodiment 3

[0053] Such as Figure 5a , Figure 5b As shown, the ligature steel sleeve 3 may not be at the transition position between the disk 1 and the flat waist 2, but is located on the stable side of the disk 1. At this time, the ligature steel sleeve 3 provides a downward force, which can increase the clamping of the two disks 1 stability.

[0054] Others are identical with embodiment 2.

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Abstract

The discloses a tunnel-like oval round hole non-closed occlusion instrument. The instrument is characterized in that the instrument comprises two discs and flat waists connected with the two discs; a layer of blocking film is respectively sewed in the two discs; a ligation steel bushing is respectively arranged on the two discs; the position portions of the two discs are overlapped; the flat waists are connected with the two discs in a tilting mode, and the two discs are parallel to each other. The tunnel-like oval round hole non-closed occlusion instrument can effectively realize the effectiveness and stability of the occlusion of the tunnel-like oval round hole non-closed occlusion instrument.

Description

technical field [0001] The invention relates to a tunnel-shaped patent foramen ovale sealing device, which belongs to the field of medical devices. Background technique [0002] The formation of the foramen ovale occurs when the embryo develops to the 6th and 7th week, and the atrial septum emits two septa successively. The septum that appears first is called the primary septum or the first septum, and the septum that appears later is called the secondary septum or the second septum. Septum, the primary septum grows from the dorsal wall of the atrium midline in a half-moon shape, grows toward the atrioventricular canal and fuses with the endocardial cushion, leaving a small hole with the caudal end of the atrioventricular septum, called the primary foramen. Before the primary foramen is not closed, a hole is formed near the head of the primary septum, called the secondary foramen, which is the normal passage of blood during the fetal period. At the same time, on the right s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/00
CPCA61B17/0057A61B2017/00654A61B2017/00597A61B2017/00606
Inventor 李博罗鹏杨永森陈娟蒲忠杰朱兴王广卉吴坚杰
Owner SHANGHAI SHAPE MEMORY ALLOY