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Bracket fixing head used for loading artificial valve replacement device

A stent fixation and valve replacement technology, applied in the field of medical devices, can solve problems such as difficulty in operation, achieve good positioning effect, reduce difficulty and risk, and reduce difficulty

Active Publication Date: 2011-01-26
VENUS MEDTECH (HANGZHOU) INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] When the number of fixing ears is more than one, the projected positions of the top edges of the multiple fixing ears on the axis of the bracket are the same in the prior art, that is, the heights of the top edges of the multiple fixing ears are the same, but this will bring There is a problem. When fixing the bracket to the delivery device, it is necessary to put multiple fixing ears in place at the same time, which is difficult to operate.

Method used

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  • Bracket fixing head used for loading artificial valve replacement device
  • Bracket fixing head used for loading artificial valve replacement device
  • Bracket fixing head used for loading artificial valve replacement device

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Embodiment Construction

[0057] The artificial valve replacement device of the present invention consists of a stent and a three-leaf valve fixed in the stent, see figure 2 The stent is a net-like cylindrical structure composed of sequentially connected aortic stent 4 , valve stent 5 and inflow tract stent 6 , which is the same as the prior art in terms of this structural feature.

[0058] The top edge of the aortic stent 4 is provided with fixed ears, which are used to cooperate with the delivery device when implanted in the human body. see figure 2 , there are three fixed ears on the top edge of the aortic stent 4, and only the fixed ears 60a and 60b are seen in the figure due to angle problems. The fixing ears are in a "T" shape, and the heights of the top edges of the three fixing ears are inconsistent.

[0059] The stent of the artificial valve replacement device is in a folded state when it is not in use, and it is a dense tubular structure, which is made by laser cutting the tube of memory ...

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Abstract

The invention discloses a bracket fixing head used for loading an artificial valve replacement device. The outer wall at one end of the bracket fixing head is provided with at least two positioning grooves, wherein the lengths of the positioning grooves along the axis direction of the bracket fixing head are different. The bracket fixing head and a conveying device of the invention have the characteristics of convenient use, good positioning effect, reduction of surgery difficulty and realization of implantable body recycle.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a fixing part of a delivery device, which is used to fix an artificial valve replacement device on the delivery device and then input it into a human body. Background technique [0002] When the patient's own heart valve is mutated due to congenital or acquired diseases, causing the valve to fail to open and close normally, it will affect healthy life and even life. The variation of the heart valve can be divided into insufficiency and insufficiency, both of which can cause increased heart load. Whether the heart can still work normally under this load is the main basis for deciding whether the human heart valve should be replaced. [0003] When the patient needs to replace the valve, the existing method is to use surgery to replace the valve. The doctor will open the patient's chest and stop the heart, and connect it to the extracorporeal cardiopulmonary circulation syst...

Claims

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Application Information

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IPC IPC(8): A61F2/24
Inventor 王约翰张启明孙启明
Owner VENUS MEDTECH (HANGZHOU) INC
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