A Y-shaped integrated corrugated mesh braided tracheal stent and its manufacturing method

Abstract

The invention discloses a Y-shaped integrated corrugated net braided trachea support and a manufacturing method thereof. The tracheal stent is braided into a diamond-shaped mesh by a single nickel-titanium alloy wire, including a stent main body, a left branch, and a right branch. The stent main body, the left branch, and the right branch are integrally structured. There are evenly distributed ripples at the junction of the left branch and the right branch. The production method is as follows: the nickel-titanium alloy wire is used to wind the bracket on the weaving mold, and after the winding is completed, the braided bracket tube is put into the heat-setting mold for heat-setting, and then demolded. A Y-shaped integrated corrugated mesh braided tracheal stent prepared by the present invention increases the compliance and bendability of the stent tube, especially the corrugation at the joint between the main trunk and the two branches, so that the Y-shaped stent tube can match According to the anatomical shape of the pipeline of different patients, the angle between the main trunk and the two branches can be changed to adapt to the lesions of different situations and closely fit the human trachea wall.

Description

technical field [0001] The invention relates to a prosthesis in the technical field of medical engineering and a manufacturing method thereof, and specifically designs a Y-shaped integrated corrugated mesh braided trachea stent and a manufacturing method thereof, which belong to the technical field of medical devices. 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. At present, for the treatment of tracheal stenosis, mediastinal stenosis caused by external pressure of the lumen, and patients who are old and in poor general condition and cannot tolerate surgery, it is usually necessary to place a tracheal stent, and the conventional stent is generally a straight cylindrical split structure, and When the lesion occurs at the bifurcation of the body cavity, such as the bifurcation structure of the trachea and bronchi, three stent...

AI Technical Summary

Problems solved by technology

However, this method is time-consuming and labor-intensive, with complicated steps and high cost, and once the branch angle is determined, it is not easy to adjust. Cannot be quickly and easily applied to different patients

[0004] Therefore, although the Y-shaped stent proposed in the above patents solves the problem of lack of Y-shaped stents in clinical practice, it cannot adapt to various tissue lesions in different degrees, and the manufacturing method is time-consuming and laborious, with complicated steps and high cost.

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