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Double-layer vascular stent

A vascular stent and double-layer technology, which is applied in the field of double-layer vascular stents, can solve the problems of the stent and the diseased lumen wall being unable to be completely closed, the stent and the lumen being poorly adherent, and the appearance of the lumen inner wall being changed.

Active Publication Date: 2019-07-09
LIFETECH SCIENTIFIC (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to individual differences, the shape of the inner wall of the lumen is different, and there may be calcified plaques on the inner wall of the lumen to change the shape of the inner wall of the lumen. , so that the gap between the stent and the lumen wall of the lesion cannot be completely closed

Method used

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  • Double-layer vascular stent
  • Double-layer vascular stent
  • Double-layer vascular stent

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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” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected ...

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Abstract

The invention relates to a double-layer vascular stent. The double-layer vascular stent is characterized in that a skirt stent body is arranged on a main stent body of the double-layer vascular stent,a first developing piece and a second developing piece are arranged on the main stent body, the first developing piece includes a first developing part and a second developing part, the least distance between the first developing part and the second developing part on the plane perpendicular to the axis of the main stent body is level with the free end, and one end of the second developing part far from the first end is flattened with the end of an extension section away from a taper section. By the above structure, the double-layer vascular stent can be accurately positioned.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a double-layer blood vessel stent. Background technique [0002] At present, a lumen stent can be used to implement endovascular isolation to isolate a lesion area in a human lumen, for example, a lumen stent can be used to isolate an arterial dissection or aneurysm in a blood vessel. This method has the advantages of less surgical trauma, less intraoperative blood transfusion, faster postoperative recovery and shorter hospital stay, so it has gradually replaced traditional open surgery. The luminal stent usually has the ability to expand radially, and is fixed in the lumen by using its radial support force to cling to the lumen wall of the vessel. In order to prevent the stent from falling off, the stent must have a sufficiently large radial support force, and the greater the radial support force, the stronger the rigidity of the stent after radial deployment. However, due to in...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/07
CPCA61F2/07A61F2210/0076A61F2250/0096A61F2/852A61F2250/0039A61F2250/006A61F2250/0098
Inventor 方毅肖本好
Owner LIFETECH SCIENTIFIC (SHENZHEN) CO LTD