Thrombectomy system and controllable thrombectomy apparatus thereof

Abstract

The invention discloses a thrombectomy system and a controllable thrombectomy apparatus thereof. Emboli can be taken out by a mechanical embolus taking device, accordingly, blood vessels can be dredged, and blood vessel recanalization effects can be realized. The controllable thrombectomy apparatus is provided with a thrombectomy spring. The thrombectomy spring in a release state is in the shape of a cone screw, a core thread is connected to a distal end of the thrombectomy spring, a tubular structure is connected to a proximal end of the thrombectomy spring, the core thread is slidably connected with the tubular structure, and the shape of the thrombectomy spring can be controlled. Compared with the prior art, the thrombectomy system and the controllable thrombectomy apparatus have the advantages that the shape of the thrombectomy spring can be controlled, only a space with the length not larger than 10mm needs to be provided at a distal end of a required embolism position when the apparatus is about to be released, accordingly, the clinical applicable range can be extended to a great degree, the apparatus is quite flexible, the minimum passing size of the apparatus is 0.014' (0.36mm), and the apparatus can easily enter the small tortuous blood vessels.

Description

technical field [0001] The invention relates to the technical field of medical operation instruments, in particular to an instrument for interventional treatment of ischemic stroke. Background technique [0002] Ischemic stroke accounts for 60-80% of all strokes, and is mainly treated clinically by drug thrombolysis or mechanical thrombectomy. Due to the strict time window limit and many complications of drug thrombolysis, most patients will eventually adopt mechanical thrombectomy. [0003] To perform thrombectomy, the device needs to be released at the distal end of the embolization site. Most of the existing thrombectomy devices cannot be released in place because the part that provides the thrombectomy function is far from the tip of the device, which leads to clinical limitations. , can not treat distal vascular disease. Contents of the invention [0004] In view of this, the present invention provides a controllable thrombectomy device, that is, a mechanical thromb...

AI Technical Summary

Problems solved by technology

[0003] To perform thrombectomy, the device needs to be released at the distal end of the embolization site. Most of the existing thrombectomy devices cannot be released in place because the part that provides the function of thrombectomy is far from the tip of the device, which leads to clinical limitations. , not treating distal vascular disease

Images