Lumen stent

A technology on lumen and stent, which is applied in the field of luminal stent, can solve the problems of air embolism risk, surgical procedure danger, etc., and achieve the effects of relieving blood flow pressure, reducing continuous impact, and reducing the risk of displacement

Active Publication Date: 2019-03-22
LIFETECH SCIENTIFIC (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing multi-layer stents may cause the risk of air e

Method used

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Embodiment Construction

[0030] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific implementations disclosed below.

[0031] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directl...

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Abstract

The invention relates to a lumen stent which comprises a radially compressible inner-layer stent and an outer-layer stent. The inner-layer stent is of a tubular structure, and openings are formed in two ends of the tubular structure with the sealed middle; the outer-layer stent sleeves the inner-layer stent and at least partially covers the inner-layer stent, an end of the outer-layer stent is hermetically connected with the inner-layer stent, and a plurality of through holes are formed in the outer-layer stent and are particularly formed in locations close to joints of the outer-layer stent and the inner-layer stent. The lumen stent has the advantages that the through holes are formed in the outer-layer stent, accordingly, normal saline can flow into cavities enclosed by the outer-layer stent and the inner-layer stent along with the through holes after the lumen stent is arranged in delivery systems, air in the cavities can be completely expelled, and risks of air embolism can be prevented after the lumen stent is implanted into bodies.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a lumen support. Background technique [0002] With the development of endoluminal technology, the application of vascular stents is increasing. In the past, dissection and aneurysm of the aorta could only be treated by traditional surgical techniques or hybrid techniques. Now, the release of aortic stent graft can achieve the purpose of minimally invasive treatment, with good therapeutic effect and few surgical complications. [0003] At present, in order to isolate the breach without affecting the blood supply of important branch vessels, one or more "chimney" stents are usually released between the aortic stent graft and the inner wall of the aorta to form the blood flow of important branch vessels In this way, it can ensure that the aortic stent graft covers the rupture of arterial dissection or isolates the cavity of the aortic aneurysm without covering important branch v...

Claims

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Application Information

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IPC IPC(8): A61F2/07
CPCA61F2/07
Inventor 肖本好方毅
Owner LIFETECH SCIENTIFIC (SHENZHEN) CO LTD
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