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Woven vascular stent

A technology of vascular stent and braided wire, which is applied in the field of medical devices, can solve problems such as blood vessel wall damage, and achieve the effect of improving adherence and corrosion resistance, and facilitating operation and positioning

Inactive Publication Date: 2016-01-27
LEO MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above-mentioned stent can play the role of temporary vascular restenosis after being placed in the human body, the ends are fixed in pairs or are in an open state, and the ends are relatively sharp, which is easy to cause damage to the vessel wall, and once the stent is released, it cannot be fixed. Recycle and reset

Method used

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Embodiment Construction

[0032] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the specific embodiments described in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts should fall within the scope of the present invention.

[0033] Referring now to the accompanying drawings, the present invention will be further described.

[0034] Such as figure 1 As shown, a braided vascular stent 1 is composed of at least one superelastic memory nickel-titanium alloy wire 3 that is spirally braided from one end to the other end on a special mold, and is criss-cross...

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Abstract

The invention discloses a woven vascular stent, which has a pipe network-shaped structure woven by at least one super-elastic memory alloy wire. The stent, on the whole, is in a flat cylinder shape. The front end and the tail end of the wire are fixed together in a direct welding mode or welded together in a welding pipe mode. The wire at the end part of the stent has a closed structure. Two end parts of the stent are provided with development points. The end part of the stent is sine-shaped, Z-shaped, or a sine and Z combination-shaped. The stent can be recovered and reset. The woven wire at the end part of the stent has a closed shape and is arc-shaped, the front end and the tail end of the woven wire of the stent are fixed and welded together, adherence and corrosion resistance of the stent are improved, and the end part of the stent and the front end and the tail end of the woven wire can be prevented from puncturing the blood vessel; and as the surfaces of two ends of the stent are provided with the development points, development performance of the stent is provided, and operation and positioning under X rays by a medical staff can be facilitated.

Description

technical field [0001] The invention relates to a medical device, in particular to a braided blood vessel stent made of a superelastic memory alloy, which belongs to the technical field of medical devices. Background technique [0002] With the improvement of people's living standards and changes in lifestyle, the incidence of peripheral vascular diseases is increasing. If these diseases are not treated in time, they may cause blood vessel blockage, which will seriously endanger human life. [0003] With the progress of the times, at present, minimally invasive interventional surgery is mainly used. This type of method has the characteristics of less trauma to patients, high safety and high effectiveness, and has been affirmed by doctors and patients. It has become an important treatment method for peripheral vascular diseases. Interventional treatment refers to the implantation of internal stents in the vascular lesion segment. The implanted internal stents can support the ...

Claims

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Application Information

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IPC IPC(8): A61F2/90A61L31/02A61L31/18
Inventor 向勇刚包红锋程兴宝
Owner LEO MEDICAL
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