Balloon catheter for partially blocking blood flow

Abstract

The invention discloses a balloon catheter for partially blocking blood flow. The balloon catheter comprises a catheter seat and a catheter body mounted at the catheter seat, wherein a plurality of balloons are arranged on a far-end segment of the catheter body, a main hole channel and a plurality of side hole channels are formed in the catheter body, the main hole channel axially extends, and theside hole channels are isolated from another; and a main pipe and a plurality of side pipes are correspondingly arranged on the catheter seat, and the multiple side hole channels respectively communicate to different balloons and are used for respectively controlling inflation states of the multiple balloons. By inflating the multiple balloons, near-end blood vessels of a thrombus are effectivelysealed, blocked and protected to different degrees, so that early perfusion of a lot of blood flow is reduced after acute stroke is dredged, and reperfusion injury complications are reduced; by adjusting the inflation states of the multiple balloons, multi-level accurate adjustment of the sealing states of blood vessels is realized, so that accurate control of perfusion blood flow is realized, and functional recovery of the brain is promoted; and manifold auxiliary instruments do not need to be used, and blood flow retardant radiography evaluation, short-term pipe flushing and liquid perfusion during operations can be realized by virtue of the single instrument.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a balloon catheter for partially blocking blood flow. Background technique [0002] Intervention therapy is an emerging treatment method between surgery and medical treatment, after years of development. As a representative minimally invasive treatment, interventional technology for cerebrovascular diseases has developed rapidly in recent years with the advancement of imaging equipment and the introduction of new interventional devices. [0003] For the treatment of large vessel occlusion in acute ischemic stroke, mechanical thrombectomy has gradually become a bright spot in the treatment of acute ischemic stroke. Time window, the mechanical thrombectomy method is mainly divided into two types, one is the stent thrombectomy method, this method is punctured through the femoral artery, the guiding catheter system is pushed to the artery of the stroke, and then the stent device is ...

AI Technical Summary

Problems solved by technology

During reperfusion, the damaged structure and function are not restored, and a large number of inflammatory cells and macromolecular inflammatory factors enter the brain through the damaged blood-brain barrier, which further aggravates the damage

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