Thrombectomy stent

Abstract

The inveniton relates to a thrombectomy stent which comprises a hollow tubular stent main body, a plurality of main body developing structures are arranged on the stent main body, and the projections of the plurality of main body developing structures on the axis of the stent main body do not coincide; the stent main body has a radially contracted compression state and a radially expanded expansion state, and the distance from the main body developing structures to the axis of the stent main body is changed along with the change of the expansion degree of the stent main body. According to the thrombectomy stent, the position and the unfolding degree of the stent body can be judged through the position of the main body developing structures in the developing process, a doctor can judge the position of the thrombectomy stent and the unfolding degree of the thrombectomy stent more easily in the operation process, and thus operation operation is facilitated.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a thrombectomy bracket. Background technique [0002] Mechanical thrombectomy has become the most important means of treating patients with acute ischemic stroke. Mechanical thrombectomy has the following advantages in the treatment of acute ischemic stroke: 1. Thrombolytic drugs are not required, thereby reducing the risk of intracranial hemorrhage; 2. The treatment time window may be extended, with the standard time reaching 8 hours, and some patients have good compensation The patient can reach 2 days; 3. Directly remove thrombus and accelerate blood vessel recanalization. [0003] From the current research, thrombus can be roughly divided into the following types: 1. White thrombus (whitethrombus), mainly composed of many coral-like platelet trabeculae, has many neutrophils adhered to the surface to form white blood cells. The edge layer is speculated to be attr...

AI Technical Summary

Problems solved by technology

However, in the above-mentioned thrombus removal bracket with catch claws, the developing structure of its main body is arranged at the free ends of the catch claws, and the free ends of multiple catch claws move closer to the axis of the main body of the bracket. Therefore, It is impossible to judge the deployment degree of the thrombectomy stent through the imaging structure of the main part of the thrombectomy stent, which causes some inconvenience to the operation.

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