Endoprosthesis

A main body and body cavity technology, applied in the field of endoprosthesis, can solve the problems of reduced durability of stents, easy fracture of stents, etc.

Inactive Publication Date: 2005-01-12
医学界一流股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The non-folded part of the stent resists the changing force of the airway configuration, and thus bears huge

Method used

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Examples

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Embodiment Construction

[0026] Preferred embodiments of the present invention will be described in more detail below with reference to the corresponding drawings.

[0027] refer to Figure 1 to Figure 6 , the stent 10 according to the first embodiment of the present invention includes a main body 11, which has a predetermined length and shape and which can be contracted under an external force, and can be naturally expanded when it is in a no-load state without an external force , also includes an elastic portion 13, the elastic portion is used to connect the two ends of the main body 11 with the main body 11 to form a channel therebetween.

[0028] The elastic portion 13 maintaining a predetermined elasticity can bend the main body according to a configuration change of a body cavity such as an airway.

[0029] Corresponds to such as figure 1 Shown as the elastic portion, the main body portion 11 may have a semi-cylindrical configuration. However, the present invention is not limited thereto. Th...

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Abstract

The present invention is to provide an endoprosthesis, generally called a stent, that is designed to be firmly fixed into patient's body lumen regardless of the change of configuration of a body lumen such as an airway, thereby improving its stability and increasing its durability by flexibly and increasing its durability by flexibly corresponding to the operating state of the body lumen such as the airway.

Description

technical field [0001] The present invention relates to an endoprosthesis, commonly referred to as a stent, in particular, which is designed to be securely fixed in a body cavity of a patient regardless of the shape of the body cavity such as the airway The active state of the body cavity, such as the airway, remains consistent to enhance the stability of the stent and increase its durability. Background technique [0002] In general, body cavity stenosis such as airway stenosis is often divided into luminal obstruction, external compression and malacia according to the anatomically damaged part. Endoprostheses, ie stents used to dilate narrowed body cavity passages such as airways, have been used to treat patients with dyspnea due to external compression and narrowing of the airways in malacia. [0003] Stents of this type usually have a cylindrical structure and are made of metal and / or silicone rubber mesh. In general, self-expandable stents have been widely used, which...

Claims

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Application Information

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IPC IPC(8): A61M29/04A61F2/00A61F2/04A61F2/20
CPCA61F2/20A61F2250/0039A61F2/04A61M29/02
Inventor 徐秀源金镇国金镐仲郑载昇
Owner 医学界一流股份公司
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