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Degradable magnesium alloy membranous stent and membranous stent system

A covered stent and magnesium alloy technology, applied in the medical field, can solve the problems of high incidence of internal fistula and difficulty in placing the stent in place, and achieve the effect of low inflammatory response, low price and low thrombogenicity

Inactive Publication Date: 2014-07-30
SHANGHAI SIXTH PEOPLES HOSPITAL
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Problems solved by technology

[0007] The present invention aims to solve the current problems in the treatment of acute cranial aneurysms, such as difficulty in placing the stent in place, high incidence of internal fistula, and delayed endothelialization, thereby providing a technical solution for a degradable magnesium alloy covered stent and a covered stent system

Method used

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  • Degradable magnesium alloy membranous stent and membranous stent system

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0028] figure 1 It is a structural schematic diagram of the degradable magnesium alloy bare stent of the present invention, the degradable magnesium alloy covered stent includes: a covering film 5 and a degradable magnesium alloy bare stent 1, and the covering film 5 is coated on the degradable magnesium alloy bare stent 1 The outer surface.

[0029] The use of degradable magnesium alloy bare stent 1 achieves low inflammatory response, ensures the safety of patients, and accelerates endothelialization.

[0030] In a preferred embodiment, the degradable magnesium alloy bare stent 1 is mainly composed of a plurality of corrugated metal stents, and the ends of the stents covered with a film 5 are round.

[0031] In a preferred embodiment, the degradable magnesium alloy bare stent 1 is connected w...

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Abstract

The invention discloses a degradable magnesium alloy membranous stent and a membranous stent system and belongs to the field of medical science. The degradable magnesium alloy membranous stent and the membranous stent system comprise a membrane and a degradable magnesium alloy bare stent, wherein the membrane is coated on the outer surface of the degradable magnesium alloy bare stent. The degradable magnesium alloy membranous stent system comprises the degradable magnesium alloy membranous stent, a balloon and a balloon catheter, wherein the degradable magnesium alloy membranous stent is arranged on the outer wall of the balloon, and the balloon is arranged on the balloon catheter. The degradable magnesium alloy membranous stent and the membranous stent system have the advantages of being simple in operation, low in price, low in embolism causing performance and inflammatory response, safe and reliable, and are suitable for pathological changes of intracranial aneurysm, carotid-cavernous sinus fistula, arteriovenous fistula, thoracic aortic aneurysm, abdominal aortic aneurysm and the like.

Description

technical field [0001] The invention relates to the medical field, in particular to a degradable magnesium alloy covered stent and a covered stent system for treating intracranial aneurysms. Background technique [0002] Intracranial aneurysmal subarachnoid hemorrhage is one of the common cerebrovascular diseases, with an annual incidence of about 8-16 cases per 100,000 people. After aneurysm rupture, the mortality rate is as high as 40%, and the disability rate is as high as 33%. According to relevant statistics, there are as many as 60 million patients with intracranial aneurysms in my country, and about 200,000 patients with intracranial aneurysm rupture and bleeding each year. Therefore, aneurysms are like "uncertain time bombs" left in the brain, endangering the lives of patients at any time . [0003] The current treatment methods for intracranial aneurysms mainly include coil embolization within the aneurysm, Willis stent graft, and surgical craniotomy. [0004] Amo...

Claims

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Application Information

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IPC IPC(8): A61F2/07A61F2/958A61L31/02A61L31/08
Inventor 李永东袁广银王武杨瑞民
Owner SHANGHAI SIXTH PEOPLES HOSPITAL
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