Intravascular stent capable of being twisted, pressed and held and twisting, pressing and holding method thereof
A vascular stent, twisting and pressing technology, applied in the field of vascular stent, can solve the problems of cumbersome operation steps, complex shape and structure, lowering and other problems, and achieve the effect of simplifying steps and ensuring uniformity
Pending Publication Date: 2022-05-31
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology
The vascular stent provided by the present invention provides enough space for stent crimping, and the possibility of the support ribs touching together during crimping is greatly reduced, but its shape and structure are relatively complicated and the operation steps are cumbersome during the crimping process
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[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0034]The object of the present invention is to provide a vascular stent capable of twisting and crimping and its twisting and crimping method, so as to solve the problems in the above-mentioned prior art. When compressing and deforming, it only needs to load a simple torque to realize the deformation without passing through The crimping machine compresses the stent, and the height and diameter of the vascular stent can be changed. Its structural performance re...
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Abstract
The invention discloses an intravascular stent capable of being twisted, pressed and held and a twisting, pressing and holding method thereof.The intravascular stent is cylindrical and is defined by a two-dimensional structure in a rectangular net shape, and the rectangular net shape comprises a first side line and a second side line which are perpendicular to the axis of the cylindrical shape and parallel to the axis of the cylindrical shape; the rectangular net is composed of a plurality of first lead screws and second lead screws which are arranged in the extending direction of the first side line, the first lead screws and the second lead screws are fixed in a crossed mode and arranged in parallel at equal intervals, the first lead screws are obliquely arranged in the extending direction of the first side line, the lengths of the first lead screws are gradually decreased from the middle to the two sides, and the first lead screws are symmetrically arranged. The extension direction of each second screw rod is parallel to the second side line, or the second screw rods and the first screw rod are inclined in the same direction, and the inclination of the second screw rods is smaller than that of the first screw rod, the structure can realize reduction deformation by applying simple torque before implantation, deformation is realized without depending on a bracket pressing and holding machine and a complex pressing and holding process, and the implantation efficiency is improved. And the steps before the intravascular stent is implanted are simplified.
Description
technical field [0001] The present invention relates to the technical field of blood vessel stents, in particular to a twistable and crimped blood vessel stent and a twisting and crimping method thereof. Background technique [0002] With the continuous development of modern medicine, surgical methods have begun to transition from complex open surgery to minimally invasive intracavitary surgery. It is a common way to enter any organ tissue of the human body through blood vessels. As early as 1953, Seldinger performed subcutaneous blood vessels. After the first attempts at interventional procedures, endovascular therapy developed rapidly. For diseases that require vascular recanalization, percutaneous transluminal angioplasty is easy to operate and has good short-term effects. It is a safe and effective method of choice. However, a series of postoperative repair reactions can lead to vascular restenosis. In order to reduce the rate of restenosis, drug eluting The balloon (DE...
Claims
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Login to View More IPC IPC(8): A61F2/91A61F2/92
CPCA61F2/91A61F2/92
Inventor 韩亚峰曾心耘潘晨苏鹏垒王昊天王庭宇杨丁
Owner BEIJING INSTITUTE OF TECHNOLOGYGY