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Remover for thrombus in stents

A technology of remover and thrombus, which is applied in the field of medical devices, can solve problems such as difficult removal and unsatisfactory effect, and achieve the effect of relieving pain, obvious effect and convenient use

Inactive Publication Date: 2013-06-19
祖茂衡
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, the treatment of intravascular stent restenosis is thrombolysis or balloon dilation. Since the balloon dilation can only play a role of local extrusion and fails to remove thrombus and hyperplastic tissue, the effect is not good. ideal, difficult to remove

Method used

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  • Remover for thrombus in stents

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Experimental program
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Effect test

Embodiment Construction

[0010] The present invention will be further described below in conjunction with accompanying drawing.

[0011] Such as figure 1 As shown, a thrombus removal device in a stent includes a blade cutter 1, a wheel shaft 2, a driving device 3 and an elastic filter 4, the blade cutter 1 is arranged on the front end of the wheel shaft 2, and the end of the wheel shaft 2 is installed in the driving device 3, elastically The filter screen 4 is installed on the top of the wheel shaft 2; the elastic filter screen 4 is connected to the wheel shaft 2 through the wheel shaft connector 5; the blade cutter 1 is attached to the wheel shaft 2 when it is stationary, and automatically opens and cuts when it rotates; when it rotates, the blade cutter 1 The diameter of the axle 2 is consistent with the diameter of the intravascular stent, the length of the axle 2 is adapted to the length of the matching catheter, and the diameter of the axle 2 is adapted to the inner diameter of the matching cathe...

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PUM

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Abstract

The invention discloses a remover for thrombus in stents, which belongs to the technical field of medical instruments and comprises cutter blades, an axle, a driving device, an elastic filter screen and a guide wire. The cutter blades are arranged at the top end of the axle, the tail end of the axle is mounted in the driving device, the guide wire penetrates through the driving device and the axle, and the elastic filter screen is arranged at the front end of the guide wire. The remover for thrombus in stents has the advantages that by means of percutaneous puncture, the cutter blades in high-speed rotation can remove thrombus in endovascular stents or hyperplastic vascular endothelium thoroughly, the problem of restenosis of the endovascular stents after the endovascular stents are implanted can be solved, and accordingly minimally invasive treatment effect can be achieved and suffering of patients is relieved; besides, the remover is evident in effect and convenient in use.

Description

technical field [0001] The invention relates to a medical device, in particular to a thrombus remover in a stent, which belongs to the technical field of medical devices. Background technique [0002] Intravascular stent is a metal support placed in human blood vessels, which can open narrowed blood vessels and ensure smooth local blood flow. Intravascular stent technology has been widely used clinically (such as coronary artery stents, cervical arterial stent, iliofemoral artery stent, inferior vena cava stent, hepatic vein stent, iliac vein stent, etc.). Because the surface of the intravascular stent is not smooth, it is easy to form thrombus and cause vascular endothelial hyperplasia and restenosis. Usually, the treatment of intravascular stent restenosis is thrombolysis or the use of balloon dilation. Since the balloon dilation can only play a role of local extrusion and fails to remove thrombus and hyperplastic tissue, the effect is not good. Ideal, difficult to remov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/22
Inventor 祖茂衡
Owner 祖茂衡