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Pressure Regulator in Heart chamber

A pressure regulation, room technology, applied in the field of medical devices, which can solve the problems of high price, blocking of device openings, limited source of donors, etc.

Pending Publication Date: 2019-01-25
HANGZHOU NOYA MEDTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] c. Left ventricular assist device (LVAD) surgery requires extracorporeal circulation, which not only has a high incidence of major trauma and complications, but is also expensive and difficult to obtain, and there are no conditions for surgery in China;
[0009] d. Heart transplantation can fundamentally solve the problem, but the source of donors is very limited and expensive
[0010] One of the existing technical solutions is to implant a shunt device in the atrial septum between the left atrium and the right atrium. This method has been proven effective by clinical trials, but the structure and performance of the existing shunt devices still need to be further improved. These devices It is easy to block the opening of the instrument due to endothelial crawling, and the channel is closed to lose the shunt effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] This embodiment is the basic embodiment of the present invention.

[0089] Such as Figure 1-3 As shown, an interatrial pressure regulating device 100 includes an atrial septal channel 130 that can radially contract and expand and axially penetrates. The first positioning part 120 and the second positioning part 150 on the two side walls, at least on the first positioning part 120 and / or the second positioning part 150 are provided with a conductive Part 500, the conductive part 500 conducts electricity at least on the surface in contact with atrial septal tissue.

[0090] The atrial septal channel 130 is a cylindrical structure or a ring structure, wherein the cylindrical structure means that the axial length of the atrial septal channel 130 is relatively long, and the annular structure means that the axial length of the atrial septal channel 130 is relatively short. The interatrial septal channel 130 can be formed by a wave-shaped stent, a mesh-shaped stent, a rod-s...

Embodiment 2

[0121] Such as Figure 4 As shown, this embodiment is an improvement on the basis of Embodiment 1.

[0122] The difference from Embodiment 1 is that, in addition to the same structure as Embodiment 1, the conductive part 500 can also be an electrode 561 arranged on the first positioning part 120 or / and the second positioning part 150, The part of the first positioning part 120 or / and the second positioning part 150 in contact with the electrode 561 is insulated; or the electrode 561 is provided with the first positioning part 120 or / and the second positioning part 150 to avoid An insulator that conducts electricity between them. The electrodes 561 may be disposed on the first positioning portion 120 and the second positioning portion 150 at the same time, or may be disposed on only one of them.

[0123] The electrode 561 can be directly electrically connected to the radio frequency source, that is, the radio frequency source and the electrode 561 are directly connected by wi...

Embodiment 3

[0127] This embodiment is an improvement on the basis of Embodiment 1.

[0128] Such as Figure 5-6 As shown, the difference from Embodiment 1 is that the interatrial septal channel 130 is a mesh support, and the first positioning part 120 and the second positioning part 150 are also independently mesh structures. The interatrial septum channel 130, the first positioning part 120 and the second positioning part 150 are an integral structure braided by braided silk.

[0129] The first positioning part 120 and the second positioning part 150 are provided with a positioning surface, a positioning line or a positioning point that is close to the inter-atrial partition, and are clamped or pressed by the positioning surface, positioning line or positioning point, then the first positioning At least one of point contact, line contact and surface contact is formed between the part 120 and the second positioning part 150 and the interatrial septum on the corresponding side. Wherein t...

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PUM

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Abstract

The invention discloses a pressure regulator for a heart chamber which comprises a radially contractable and expandable axially penetrating atrial septal passage; a first positioning portion and a second positioning portion respectively abutting against the wall surfaces of both sides of the atrial septum are arranged in the axial direction of the atrial septum passage; at least that first position portion and / or the second positioning portion are provide with an electrically conductive portion abutting against the atrial septum tissue and electrically conducting with the ablation power source, and the electrically conductive portion conduct electricity at least on a surface in contact with the atrial septum tissue. The first positioning portion and / or the second positioning portion are provided with an electrically conductive portion abutting against the atrial septum tissue and electrically conducting with the ablation power source. The invention can prevent the problem that the passage of the atrial septum is closed due to the endothelial creeping of the atrial septum, and avoid the pressure regulating device from losing the function of shunting.

Description

technical field [0001] The invention belongs to the field of medical devices, in particular to a pressure regulating device for atrial chambers. Background technique [0002] Heart failure (heart failure) referred to as heart failure refers to the failure of the venous return blood to fully discharge the heart due to the dysfunction of the systolic function and / or diastolic function of the heart, resulting in blood stasis in the venous system and insufficient blood perfusion in the arterial system. Circulatory Disorder Syndrome. [0003] Heart failure is a serious disease with high morbidity and mortality. According to the location of heart failure, it can be divided into left heart failure, right heart failure and whole heart failure. According to the clinical manifestations of heart failure, it can also be divided into systolic heart failure. Heart failure and diastolic heart failure, among which diastolic heart failure (DHF) accounts for about half of all heart failure p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/24
CPCA61F2/2409A61F2/2442A61F2/2466A61B17/00
Inventor 王永胜吴俊飞董元博
Owner HANGZHOU NOYA MEDTECH CO LTD
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