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Magnesium alloy coronary support frame

A magnesium alloy, coronary artery technology, used in stents, medical science, surgery, etc., can solve problems such as toxic reactions and human incompatibility, and achieve the effects of high safety, improved quality of life, and not easy to break

Active Publication Date: 2013-05-22
JIANGYIN BIODEGRADE MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem that existing clinically used stents are generally made of non-degradable metals such as stainless steel, cobalt-chromium alloy, platinum-iridium alloy, nickel-titanium alloy, and tantalum. Incompatibility with the human body can cause toxicity problems, and a magnesium alloy coronary stent is provided

Method used

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  • Magnesium alloy coronary support frame
  • Magnesium alloy coronary support frame

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specific Embodiment approach 1

[0016] Specific implementation mode one: combine figure 1 and figure 2 To illustrate this embodiment, the stent of this embodiment is made of magnesium alloy and laser-engraved into a net-like circular tube structure. The net-like circular tube structure is composed of several main body units 1 and several linear connectors 2, and each main body unit 1 It is composed of a semicircle 1-1, two quarter circles 1-2 and two arcs 1-3, and the two quarter circles 1-2 are arranged symmetrically on the semicircle 1-1 , and the quarter ring 1-2 and the half ring 1-1 are connected by an arc 1-3, and the concave direction of the arc 1-3 faces the center of the half ring 1-1, and the number Two to four main body units 1 are arranged along the axial direction of the network management system, and eight to eighteen main body units 1 are arranged along the circumferential direction of the network management system. Among the several main body units 1 arranged in the circumferential directio...

specific Embodiment approach 2

[0017] Embodiment 2: The outer diameter of the meshed circular tube structure in this embodiment is Φ1 mm to Φ5 mm, the wall thickness is 0.1 mm to 0.2 mm, and the length of the meshed circular tube structure is 5 mm to 50 mm. Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0018] Specific implementation mode three: combination figure 1 The present embodiment will be described. The length of the linear connector 2 of the present embodiment is 0.1 mm to 0.3 mm. Other compositions and connections are the same as those in Embodiment 1 or 2.

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Abstract

The invention provides a magnesium alloy coronary support frame and relates to a metal coronary artery support frame. The problems that metal preparation which is not degradable of stainless steel, cobalt chrome alloy, platinum iridium alloy, chromel alloy, tantalum and the like are adopted by the prior support frame, toxic reaction is caused due to the fact that the support frame is implanted in a blood vessel as a foreign material are solved. The support frame is carved into a net shape round pipe structure by the magnesium alloy through a laser. The net shape round pipe structure is composed of a plurality of subject units and a plurality of straight line connecting bodies. Each subject unit is composed of a half circular ring, two quarters of round rings and two arcs. The two quarters of the round rings are arranged symmetrically at two ends of the half circular ring. The quarters of the round rings are connected with the half circular ring through the arcs. The plurality of the subject units are uniformly arranged along the axial direction and the circumference direction of a net pipe. Every adjacent two subject units are arranged symmetrically relative to a straight line connecting body in the plurality of the subject units arranged along the circumference direction. Arc top ends of every adjacent two half circular rings are connected with one straight line connecting body. The magnesium alloy coronary support frame is used for clinical curing coronary disease.

Description

technical field [0001] The invention relates to a metal coronary artery stent, in particular to a magnesium alloy coronary artery stent. Background technique [0002] Coronary artery stent implantation is currently one of the most effective methods for the treatment of coronary heart disease. For patients with limited or staged narrowing of coronary arteries confirmed by selective coronary angiography, a balloon with a stent is sent through a cardiac catheter, and the balloon is dilated at the narrowed coronary artery lesion and placed with a supporting vessel The stent can restore the blood flow in the stenosis of the blood vessel to normal, and effectively ensure the blood supply of the myocardium. [0003] At present, there are many types of stents used clinically, with different emphases, but the purpose is to improve the supporting force, flexibility, and improve the expansion performance of the stent. [0004] In the invention patents with patent publication numbers ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/915A61L31/02
Inventor 李莉刘二宝李珍郑玉峰
Owner JIANGYIN BIODEGRADE MEDICAL TECH CO LTD
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