Intracavity intima peeling device

Abstract

The invention discloses an intracavity intima peeling device, which comprises a first pipe, a second pipe, an outlet, a passage, a thorn and a driving element, wherein the first end of the first pipeis a peeling head capable of being used for peeling the intima from the inner wall of the cavity; the first end of the second pipe extends in from the second end of the first pipe and can extend out from the first end of the first pipe, is movably matched with the first pipe and can rotate to and fro; the outlet is formed in the outer wall of the first end of the second pipe; one end of the passage communicates with the outlet; the other end of the passage extends in the direction towards the inner wall of the second pipe and penetrates through the inner wall of the second pipe; the thorn is movably arranged in the passage, and comprises a main thorn end; the driving element is movably arranged in the second pipe in a sleeving way, and can drive the main thorn end of the thorn to extend out of the outlet. When the intracavity intima peeling device is used for operation, the blood vessel incision is not needed; the operation wound is small (minimally invasive); the artificial stenosis due to incision and suture can be avoided; the hyperplasia endangium can be integrally peeled away; the occurrence rate of restenosis is reduced.

Description

Technical field [0001] The present invention relates to surgical instruments, in particular to a stripping device for endometrium. Background technique [0002] Due to the improvement of living standards and the arrival of an aging society, the incidence of arteriosclerosis occlusive disease has increased year by year, for example, the common superficial femoral artery intimal plaque. During the operation, the intima and the media need to be stripped and separated with an endometrial pre-cutting instrument. After reaching the predetermined resection position, the endometrial resection instrument is used to remove the intima together with the plaque. The use of existing endometrial pre-cut instruments and endometrial resection instruments for surgical operations requires incision of the blood vessel lumen. The surgical wound is large, and it is easy to cause artificial stenosis due to incision and suture, while the traditional peeling ring is far away from the inner membrane. The...

AI Technical Summary

Problems solved by technology

Surgical operations using the existing intimal pre-cutting instruments and endarterectomy instruments need to incise the lumen of the blood vessel. The surgical wound is large, and it is easy to cause artificial stenosis caused by incision and suture. There is a great deal of uncertainty in the processing of the terminal

If intraluminal techniques such as balloon dilation and stent implantation are used, there is a possibility of continued intimal hyperplasia and vascular restenosis

However, the newly launched vascular endovascular rotary cutter has defects such as complicated operation and time-consuming

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