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Atrial shunt instrument

A device and atrium technology, applied in the field of atrial shunt devices, can solve problems such as increased treatment costs and poor patient prognosis

Pending Publication Date: 2021-04-06
HANGZHOU NOYA MEDTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned stoma is generally formed by implanting an atrial shunt device into the atrial septum, but when there are problems such as thrombus or stoma closure and the atrial shunt device needs to be removed, transthoracic surgery is required, which will lead to poor prognosis and increase treatment costs

Method used

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Examples

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no. 1 example

[0064] The first embodiment, specifically as Figure 1 to Figure 11 structure representation.

[0065] refer to figure 1 , figure 1 A state of the atrial shunt device of this embodiment in use is illustrated, wherein the stent 1 is connected to the transporter 2 in an expanded state. The transporter 2 has a sheath assembly 201 , a grasping assembly 203 connected to the distal end of the sheath assembly 201 , and a handle 205 connected to the proximal end of the sheath assembly 201 . The stent 1 is sheathed on the sheath assembly 201 and located within the grasping range of the grasping component 203 . According to the principle that will be described in detail later, the stent 1 can be combined with the grasping assembly 203, and then through the operation of the handle 205, the stent 1 can be accommodated in the sheath assembly 201 in a contracted state, or be removed from the sheath The assembly 201 is released in an expanded state. When the stent 1 is in the expanded s...

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Abstract

The invention provides an atrial shunt instrument. The atrial shunt instrument comprises a stent and a conveyor; the stent is of a structure which can be radially contracted and expanded as a whole, and comprises a stent main body which can be implanted and positioned in an atrial septum to construct a stoma, and a recovery part connected to the stent main body; the conveyor comprises a sheathing canal assembly, a grabbing assembly and a handle; the stent is detachably connected onto the far end of the sheathing canal assembly, and the sheathing canal assembly can accommodate the stent which is in a contracted state; the grabbing assembly can be folded or unfolded in the radial direction, the near end of the grabbing assembly is fixedly connected to the far end of the sheathing canal assembly, and the far end of the grabbing assembly is a free end and is provided with a grabbing part extending inwards in the radial direction so as to be combined with or separated from the recovery part of the stent; and the handle is connected to the near end of the sheathing canal assembly and comprises an adjusting assembly connected with the grabbing assembly so as to control the grabbing part to be opened and closed and a conveying assembly used for driving the sheathing canal assembly to move in the axial direction so as to release or contain the stent. According to the atrial shunt instrument of the invention, the stent can be conveniently collected.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an atrial shunt device. Background technique [0002] Heart failure (referred to as heart failure) is a group of complex clinical syndromes caused by abnormal changes in the structure and / or function of the heart caused by various reasons, resulting in ventricular systolic and / or diastolic dysfunction, mainly manifested as dyspnea, Fatigue and fluid retention (pulmonary congestion, systemic circulation congestion and peripheral edema), etc. According to the left ventricular ejection fraction, it is divided into heart failure with reduced ejection fraction, heart failure with preserved ejection fraction, and heart failure with intermediate ejection fraction. According to the time and speed of heart failure, it is divided into chronic heart failure and acute heart failure. Most patients with acute heart failure have partial remission of symptoms after hospitalization, and then turn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/966A61F2/97
CPCA61F2/966A61F2/97A61F2002/9528A61F2210/0061A61F2210/0066A61F2250/0098
Inventor 潘晓彤高国庆王永胜
Owner HANGZHOU NOYA MEDTECH CO LTD
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