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Arial septostomy device, atrial septostomy system and operation method of atrial septostomy system

A technology of atrial septum and stoma, applied in the field of medical devices, can solve problems such as loss of shunt function, embolism, myocardial tissue damage, etc., and achieve the effect of avoiding device falling off

Pending Publication Date: 2018-11-13
HANGZHOU NOYA MEDTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The above-mentioned technology has the following defects: the implant used for atrial shunt leaves a device at the stoma, which easily leads to thrombus formation, or the device falls off to form an embolism
In addition, the channel closure loses the shunt effect due to the endothelial attachment can cause the opening of the device to be blocked
In addition, there is a high risk of cutting intracardiac tissue by mechanical or high-frequency electrocautery during the operation, such as loosening of the intraoperative grasping device during surgery or during recovery, which may cause the cut tissue to fall off and be damaged. embolism
In addition, if the grasping device becomes loose during the cutting process, other myocardial tissue can easily be damaged

Method used

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  • Arial septostomy device, atrial septostomy system and operation method of atrial septostomy system
  • Arial septostomy device, atrial septostomy system and operation method of atrial septostomy system
  • Arial septostomy device, atrial septostomy system and operation method of atrial septostomy system

Examples

Experimental program
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Effect test

Embodiment 1

[0068] Example 1, such as Figure 1-3 Shown is the basic structure of the atrial septostomy device 100 . It includes a radially expandable stoma main body 101; the stoma main body 101 is provided with a stoma part 110 for passing through the interatrial septum and radially expanding to expand the atrial septal tissue; in this embodiment, the stoma part 110 is set at the distal end of the stoma main body 101, and the stoma part 110 is provided with a conductive part 111 electrically connected to the ablation power supply and the control mechanism at least on the outer surface of the stoma part 110 along the circumferential direction. The surfaces in contact at intervals are electrically conductive; an insulator is provided between the conductive part 111 and the stoma part 110 to avoid electrical conduction between the two, or the rest of the stoma part 110 and the stoma body except the conductive part 111 The outer surface of 101 is insulated.

[0069] The stoma main body 10...

Embodiment 2

[0083] Example 2, such as Figure 4-8As shown, this embodiment is improved on the basis of Embodiment 1. The atrial septostomy device 100 includes a radially expandable stoma main body 101, the central part of the stoma main body 101 is a tubular and radially expandable stoma part 110, and the stoma part 110 is at least along the circumferential direction on the outer surface. The ring is provided with a conductive part 111 that is electrically connected to the ablation power supply and the control mechanism. The main body 101 of the stoma is an integral structure made of braided metal wires, and its shape is a drum shape or a truncated cone formed by a concave surface of revolution of a generatrix.

[0084] In this embodiment, on the basis of Embodiment 1, a positioning member is added. The stoma main body 101 is connected with at least one positioning piece, and the proximal end and / or the distal end of the stoma main body 101 has at least one positioning piece. Located o...

Embodiment 3

[0095] Embodiment 3, this embodiment is improved on the basis of Embodiment 1-2. Such as Figure 9 As shown, the atrial septostomy device 100 includes a tubular and radially expandable stoma main body 101 and a stoma part 110. The stoma part 110 is provided with an ablation power supply and a control mechanism on at least one circumference of the outer surface. The electrically conductive portion 111 .

[0096] The stoma main body 101 and the stoma part 110 are integral structures braided by metal wires, and their shape is cylindrical. Likewise, this embodiment adds a positioning piece on the basis of Embodiment 1. The stoma main body 101 is connected with two locating pieces, and after implantation, the locating pieces are respectively located on the two side walls of the interatrial septum. In this embodiment, the positioning member is formed by extending the structure conforming to the stoma main body 101 and the stoma part 110 itself. Two positioning parts are respectiv...

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Abstract

The invention discloses an atrial septostomy device, an atrial septostomy system and an operation method of the atrial septostomy system. The atrial septostomy device comprises a stoma body which canbe radially expanded, and a stoma part which is used for penetrating through an atrial septum and being radially expanded to open atrial septum tissue is arranged on the stoma body; at least one circle of electricity conducting part is arranged on the outer surface of the stoma part in the circumferential direction, the electricity conducting parts are electrically connected with a melting power supply and a control mechanism, and the electricity conducting parts conduct electricity at least on the surfaces where the electricity conducting parts make contact with the atrial septum. The atrialseptostomy system at least comprises the atrial septostomy device, the melting power supply and the control device. The atrial septostomy device can be recycled, tissue cutting is not needed, and embolism is not likely to be formed.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and relates to a percutaneously inserted atrial septostomy device, in particular to an atrial septostomy device, an atrial septostomy system and an operating method thereof. Background technique [0002] Heart failure (heart failure for short), is a complex clinical syndrome of impaired ventricular filling or ejection due to any structural or functional abnormality of the heart, the main clinical manifestations of which are dyspnea and fatigue (limited exercise tolerance), and Fluid retention (pulmonary congestion and peripheral edema). Heart failure is the severe and terminal stage of various heart diseases, with a high incidence rate, and is one of the most important cardiovascular diseases today. According to the location of heart failure, it can be divided into left heart failure, right heart failure and whole heart failure. [0003] Heart failure is a serious disease with high morb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/82A61F2/90A61F2/966A61B18/12
CPCA61B18/12A61F2/82A61F2/90A61F2/966A61B2018/00351A61B2018/00589A61F2210/0061
Inventor 王永胜吴俊飞董元博李建民訾振军
Owner HANGZHOU NOYA MEDTECH CO LTD
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