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Percutaneous aortic valve incision device

A technology of aortic valve and opener, applied in the field of surgical instruments, can solve problems such as excessive bleeding and increased incision time

Active Publication Date: 2015-02-25
陈良龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing tools for cutting the aortic valve are general scalpels, but this will increase the time of cutting and cause excessive bleeding, so it has certain risks

Method used

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  • Percutaneous aortic valve incision device
  • Percutaneous aortic valve incision device
  • Percutaneous aortic valve incision device

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Embodiment Construction

[0018] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0019] Such as figure 1 As shown, a percutaneous aortic valve opening device is composed of three layers of sheath (inner sheath 3, middle sheath 2 and outer sheath 1), the inner sheath 3 and the middle sheath 2 can be Freely receive and pull out the outer sheath tube 1, the length of the three-layer sheath tube is shortened sequentially from the inside to the outside (preferably decreasing in a certain proportion), and ...

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Abstract

The invention discloses a percutaneous aortic valve incision device which comprises three layers of sheath pipes, the inner layer sheath pipe and the middle layer sheath pipe can be freely put into and drawn out of the layer sheath pipe, the lengths of the three layer of sheath pipes decrease sequentially from inside to outside, the portions located at the tail ends of the sheath pipes are connected in a sealed mode, the tail end of the outer layer sheath pipe is provided with a one-way valve, the end of the inner layer sheath pipe is movably installed with a blade support, and the other end of the blade support is installed in the end of the middle layer sheath pipe. The device is simple in structure, convenient to use and capable of greatly shortening the incision time, and therefore overmuch bleeding can be avoided.

Description

technical field [0001] The invention relates to a surgical instrument, in particular to an opener for a percutaneous aortic valve. Background technique [0002] Congenital aortic valve stenosis is caused by developmental disorders of the valve and thickening and adhesion of the valve leaflets. The male to female ratio of the incidence is about 4:1, and about 20% are associated with cardiac malformations such as patent ductus arteriosus and coarctation of the aorta. The basic lesions are different degrees of valve tissue thickening and junctional adhesions. Can be divided into single valve, two valves or three valves and other deformities. Among them, bivalvular malformation is the most common, accounting for about 70%, and it is more posterior, which is equivalent to the fusion of the aortic valve junction between the left and non-coronary sinuses, and between the left and right coronary sinuses, leaving only the right and non-coronary valves. There are traces of junction....

Claims

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Application Information

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IPC IPC(8): A61B17/32
CPCA61B17/00234A61B17/32A61B17/3209A61B2017/00243
Inventor 陈良龙陆林祥
Owner 陈良龙
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