Fragment aspirator of hematoma remover

Abstract

The invention discloses a fragment aspirator of a hematoma remover. The fragment aspirator comprises a knife head, a rotating type inner tube and a relatively stationary outer tube, wherein the rotating type inner tube is fixedly connected with the knife head; and the relatively stationary outer tube is used for sleeving the inner tube. The fragment aspirator is characterized in that the knife head comprises a conical head located in the front and a blade head located in the back; a plurality of liquid outlets communicated with a tube cavity of the inner tube are arranged on the conical head; the blade head is inserted into the front end of the outer tube; an axial knife edge groove is arranged on the blade head; a knife edge is arranged on a wall of the knife edge groove; a plurality of cutting edges are arranged on the blade head; the cutting edges are distributed along the circumferential direction of the outer tube; and when the knife head rotates, a shearing action for shearing hematoma can be formed between the blade and the knife edge. The fragment aspirator of the hematoma remover has the characteristics of simplicity in structure, easiness for processing, high cutting efficiency, small occupation space and the like.

Description

technical field [0001] The invention relates to a hematoma evacuator, in particular to a crushing suction device used in the hematoma evacuator. Background technique [0002] Currently, in the treatment of cerebral hemorrhage, a hematoma evacuator is usually used clinically. The hematoma evacuator includes a crushing suction device and a balance lavage device connected with the crushing suction device. Cut the hematoma into fine pieces through the crushing suction head on the crushing suction device, and then expel the fine hematoma fragments from the body through the flow of liquid. The crushing suction head of the existing crushing suction device adopts the Archimedes spiral structure cutter head. Although the above-mentioned cutting function can be realized, there are disadvantages such as difficult part processing, low cutting efficiency, and large lumen occupation. [0003] This shows that the broken haustor of the prior art still needs further improvement. Contents...

AI Technical Summary

Problems solved by technology

The crushing suction head of the existing crushing suction device adopts the Archimedes spiral structure cutter head. Although the above cutting function can be realized, there are disadvantages such as difficult processing of parts, low cutting efficiency, and large lumen occupation.

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