Y-shaped Ni-Tialloyed tracheal net braided support and its mfg. method

A nickel-titanium alloy and net-like weaving technology, which is applied in the field of medical engineering, can solve the problem that multiple stents need to be implanted at the same time for lesions, so as to avoid the effect of being too long or too short

Inactive Publication Date: 2006-09-20
SHANGHAI JIAO TONG UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the present invention provides a Y-shaped nickel-titanium alloy trachea mesh braided support and its manufacturing method, which solves the mold making and weaving problems of the Y-shaped meshed support and avoids the prominence Lesions need to be implanted with multiple stents at the same time. At the same time, rapid prototyping technology is used in the manufacture of stents to make the stent more in line with the actual anatomical structure and stenosis of the patient, and the stent and the trachea fit better after implantation

Method used

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  • Y-shaped Ni-Tialloyed tracheal net braided support and its mfg. method
  • Y-shaped Ni-Tialloyed tracheal net braided support and its mfg. method
  • Y-shaped Ni-Tialloyed tracheal net braided support and its mfg. method

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Embodiment Construction

[0020] Such as figure 1 As shown, the stent of the present invention is braided into a diamond-shaped network by a single nickel-titanium alloy wire, including a stent main body 1 , a left branch 2 , and a right branch 3 . The left and right branches 2 and 3 are separated from the main body 1 in a tree-like shape to form a Y-shaped support. The main body 1 of the support, the left branch 2 and the right branch 3 are integrated.

[0021] Such as figure 2 As shown, the method of the present invention first carries out CT scanning to the narrow region near the carina, then performs three-dimensional reconstruction and analysis of the image, analyzes the patient's stenosis, makes a rapid prototype of the trachea, and determines the approximate diameter and diameter of the main body of the braiding mold and the left and right branches. Length, weaving mold structure design, weaving finalization.

[0022] Such as image 3 Shown is the assembled scaffold weaving mold. The weavin...

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Abstract

A braided Y-shaped reticular scaffold for trachea is composed of a main body and two branches to form a Y shape. It is made up of NiTi-alloy wire through CT or MRI scanning to obtain the image of the narrow tranches part, measuring and analyzing its length, internal diameter and the included angle between two branches, preparing mould, and braiding.

Description

technical field [0001] The invention relates to a prosthesis in the technical field of medical engineering and a manufacturing method thereof, in particular to a Y-shaped nickel-titanium alloy trachea mesh braided bracket and a manufacturing method thereof. Background technique [0002] Intraluminal stent is a minimally invasive interventional prosthesis made of metal or polymer material that can be left in the human body for a long time or temporarily. Lumenal narrowing, occlusion, or dilated lesions. At present, stent therapy is not only widely used in the vascular system, but also used to treat stenotic and occlusive lesions of non-vascular lumens. In order to conform to the shape of the body cavity, the stent is usually cylindrical, but at the bifurcation of the body cavity, such as the bifurcation structure of the bile duct, esophagus, trachea, and bronchus, a bifurcation-shaped stent needs to be placed. [0003] The tracheal stents currently used clinically are divid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/82A61F2/04
Inventor 王成焘苏颖颖李元超沈策边巍
Owner SHANGHAI JIAO TONG UNIV
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