Adjustable support type thrombus extraction device

Abstract

An adjustable support-type thrombus extraction device of the present invention comprises: an expandable stent 10, a sleeve, a first operation wire and a second operation wire; the expandable stent 10 comprises a proximal end and a distal end; the far end of the sleeve is connected with the near end of the expandable stent, and the near end of the sleeve is provided with a connecting piece; the connecting piece has a fixed point and a through hole; the first operation wire penetrates through the through hole and can slide in the sleeve, and the first operation wire is fixedly connected with the far end of the expandable stent; the second operation wire is fixedly connected to the fixed point of the connecting piece; and the near ends of the first operation wire and the second operation wire are used for in-vitro handheld operation. An operation handle is not needed, the expansion diameter of the stent is controllable, expansion and folding of the stent are achieved through relative movement between a supporting wire and a traction wire, the controllability of operation is higher, left and right hands are jointly used for control, and the habitual problem of single-hand control does not need to be considered. Meanwhile, the first operation wire and the second operation wire can be independently controlled, so that the problem that the expandable stent extends to the far end in the contraction process can be avoided, and the possibility that thrombus falls off accidentally is reduced.

Description

Technical field [0001] The present invention relates to the field of interventional medical devices, and more particularly to an adjustable stent type endolic. Background technique [0002] The principle of cerebral artery brackets is through microcarbon-tube technology, the stent endolic equipment reaches the intracranial artery along the lower limb artery, and then the end of the tubing device is "arrest" to block the blood vessel, restore the blood vessel unobstructed. During the operation, the doctor only needs to cut a cut in the patient's thigh, and the bracket can be sent to the blood vessel, reaching the pathogenesis, eliminating the patient to receive the pain of craniotomy. [0003] Chinese Invention Patent CN109223107A discloses an ejecting device, including: an ejecting bracket, a delivery system, and a push handle. The control of the expandable bracket is achieved by pushing the handle housing and the pusher. However, through clinical experience, there is a habitual ...

AI Technical Summary

Problems solved by technology

However, according to clinical experience, one-handed control will have habitual problems, and there are also problems with poor operating feel.

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