Cutting diameter-adjustable intracavity plaque capturing mechanism and cleaning system with capturing mechanism

Abstract

The invention provides a cutting diameter-adjustable intracavity plaque capturing mechanism. The cutting diameter-adjustable intracavity plaque capturing mechanism comprises a cleaning cutter head, aplaque transportation assembly and a cutting diameter adjusting assembly. A cleaning system with the capturing mechanism comprises the cutting diameter-adjustable intracavity plaque capturing mechanism, and further comprises an external handle, an internal handle, a plaque lead-out assembly, a shaft tube transition assembly and a shaft tube driving assembly. The structures are compact but not complicated, the operation is convenient and easy to understand, forward cutting and reverse cutting can be achieved, and the cutting diameter can be adjusted. The assembly pipe bodies are high in flexibility and can be easily pushed, the cutter head is good in cutting effect and high in efficiency, the structures are reasonable in layout and high in strength, assembly is easy, the cost investment islow, and the cutting diameter-adjustable intracavity plaque capturing mechanism is worthy of application and popularization in the field.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an intracavity plaque capture mechanism with variable cutting diameter and its associated cleaning system. Background technique [0002] Occlusion of the vascular lumen, severe atherosclerosis in the cavity, and calcified lesions are common lumen diseases. Without timely treatment and surgery, it will lead to serious damage to the cardiovascular and cerebrovascular systems, which may be life-threatening if necessary. Balloon angioplasty and Stenting is a common treatment tool and method for treating such diseases. However, for severe luminal occlusion, plaque accumulation, and severe calcified lesions, it is difficult for ordinary balloon angioplasty to pass through and expand the lesion to restore normal blood flow. Even with high-pressure balloon expansion, it is easy to cause vascular rupture, dissection and Postoperative vascular restenosis and other adverse conseque...

AI Technical Summary

Problems solved by technology

However, this kind of plaque rotary cutting system has redundant system components, complicated operation, and fixed cutting diameter.

[0004] In addition, during the use of the plaque rotary cutting system on the market, it is easy to have low capture efficiency after plaque cutting, plaque left at the distal end, and distal embolism; during use, the cutting head is sharp, causing blood vessel damage; using Unfavorable phenomena such as guide wire and catheter body kinking during the process; and the catheter system has a complex structure, inconvenient operation, and high price, etc.

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