Intravascular stent with developing function

Abstract

The invention discloses an intravascular stent with a developing function, and belongs to the field of medical apparatus and instruments. The intravascular stent with the developing function comprisesa stent body and a developing structure, wherein the stent body is a hollow tubular structure; the tube wall is hollow mesh-shaped; the developing structure is arranged in a mesh-shaped hollow part of the stent body, and is connected with the stent body; a developing agent is fixed on the surface of the developing structure and is used for developing marking. According to the intravascular stentwith the developing function, on the one hand, the intravascular stent has enough visuality, so that the problem an intravascular stent is not visual in an implantation process and a post-operation follow-up process is solved; on the other hand, the developing structure is arranged in the mesh-shaped hollow part of the stent body, and holes do not need to be formed in the stent body, so that the reduction of the structure stability of the stent body is avoided.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a blood vessel stent with a developing function. Background technique [0002] Percutaneous puncture angioplasty, referred to as PTA, is under the guidance of medical imaging equipment, using a puncture needle, a guide wire and a guide sheath to insert a balloon catheter with a tightened stent into a human blood vessel and deliver it to the blood vessel At the stenosis, with the expansion of the balloon, the stent is also stretched. After the balloon is retracted and retracted, the plastically deformed metal stent remains in place and is embedded in the blood vessel, playing the role of dilating the blood vessel. This method is currently widely used in the treatment of cardiovascular diseases. [0003] There are many forms of vascular stents in the prior art. The most common one is that the stent matrix is ​​braided with shape memory alloy wire or cut and welded with shape memory ...

AI Technical Summary

Problems solved by technology

However, when the thickness of the metal-based stent is less than 80 microns, the image displayed by the stent under the medical imaging equipment is not clear enough, and it is difficult to distinguish the position and shape of the stent with the naked eye. As a result, doctors cannot accurately position the stent during surgery and postoperative follow-up.

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