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Aorta valve stent conveying system and aorta valve system

A delivery system, aortic technology, applied in the direction of heart valves, balloon catheters, catheters, etc., to achieve the effect of simple setting, good coaxiality, and good coaxiality

Pending Publication Date: 2017-12-15
姜正明 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the positioning problem of the existing aortic valve stent, to provide an improved aortic valve stent delivery system and an aortic valve system comprising the aortic valve stent delivery system

Method used

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  • Aorta valve stent conveying system and aorta valve system
  • Aorta valve stent conveying system and aorta valve system
  • Aorta valve stent conveying system and aorta valve system

Examples

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Embodiment Construction

[0029] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] Such as figure 1 As shown, the present invention relates to an aortic valve system, which includes a stent, an artificial valve 1 connected to the stent, and an aortic valve stent delivery system.

[0031] The aortic valve stent delivery system includes a pushing and releasing device for delivering the stent, and a special-shaped balloon catheter 2 arranged at the front end of the pushing and releasing device.

[0032] Special-shaped balloon catheter 2 comprises balloon 21, as attached Figure 4 and 5 As shown, the balloon 21 has a columnar connection portion 211 and a balloon expansion portion 212 communicating with the columnar connection portion 211, the columnar connection portion 211 is connected to the front end of the push release device, and the balloon 21 is designed to expand the balloon after expansi...

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PUM

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Abstract

The invention relates to an aorta valve stent conveying system which comprises a push release device for conveying an aorta valve stent. Particularly, the aorta valve stent conveying system further comprises a special-shaped balloon catheter arranged at the front end of the push release device, the special-shaped balloon catheter comprises a balloon, the balloon is provided with a cylindrical connecting portion and a balloon expanding portion communicated with the cylindrical connecting portion, and the cylindrical connecting portion is connected with the front end of the push release device; according to the design of the balloon, after expansion, a positioning face is formed in the side, close to the cylindrical connecting portion, of the balloon expanding portion, when the aorta valve stent conveying system is in use, the balloon expanding portion of the balloon is located inside a left ventricle outflow tract and tightly fits the bottom of the human aorta valve through the positioning face, and the effects of positioning and reducing and / or resisting valve leakage are achieved.

Description

technical field [0001] The invention belongs to the field of medical devices, and in particular relates to an aortic valve system and a stent delivery system thereof. Background technique [0002] With the development of my country's aging society, the incidence of valvular degeneration in the elderly is increasing, and aortic stenosis has gradually become the most common valvular heart disease in this population. Surgical aortic valve replacement used to be the only life-prolonging treatment for patients with severe aortic stenosis, but elderly patients are often contraindicated for surgery due to advanced age, weak constitution, severe lesions, or other diseases. Statistics from developed countries show that about 1 / 3 of patients with severe aortic stenosis cannot accept traditional surgical thoracotomy because of high surgical risks or contraindications. For these high-risk patients or patients with contraindications to cardiac surgery, transcatheter aortic valve implant...

Claims

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Application Information

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IPC IPC(8): A61F2/24
CPCA61F2/2433Y02A50/30
Inventor 宋光远姜正明
Owner 姜正明
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