A tumor biopsy puncture device

Abstract

The invention discloses a tumor biopsy penetrator and belongs to the field of medical apparatuses. The tumor biopsy penetrator comprises a medical liquid cylinder body, an outer knife cylinder body and an inner knife cylinder body which sleeve each other from outside to inside, the work ends of the outer knife cylinder body and the inner knife cylinder body are provided with a hook knife and a cutter respectively, and an annular airbag is arranged on the inner wall of the medical liquid cylinder body at the work end; a medical liquid cavity is formed in the medical liquid cylinder body, the medical liquid cavity is communicated with a medicine injection opening, the medical liquid cylinder body is also internally provided with a pushing and injection piston, and the outer knife cylinder body is internally provided with a conductive member connected with an electric interface; a cutter receiving groove and a sampling cavity are formed in the inner knife cylinder body, the cutter receiving groove is rotatably connected to the cutter, a steel wire rope is fixed to the tail end of the cutter, a convex flange is arranged on the side of the cutter, the sampling cavity is communicated with the cutter receiving groove through a bar-shaped hole 2 in the top of the sampling cavity, and the shape of the bar-shaped hole 2 is matched with that of the flange. The tumor biopsy penetrator canprevent proliferation of tumor cells and prevent cross infection, has higher safety, does not cause damage to healthy cells, and achieves drug intervention treatment.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a tumor biopsy puncture device. Background technique [0002] Biopsy is referred to as "biopsy" for short, also known as surgical pathological examination, or "examination" for short; it refers to the technique of taking out diseased tissue from the patient's body by cutting, clamping or puncturing in response to the needs of diagnosis and treatment, and performing pathological examination . This is the most important part of diagnostic pathology. A clear histopathological diagnosis can be made for the vast majority of cases submitted for examination, and it is regarded as the final clinical diagnosis. [0003] Nowadays, the incidence of tumors is getting higher and higher, making the treatment of tumors more urgent. Tumor biopsy is the most accurate method to diagnose the nature of tumors, and biopsy is of great significance in tumor diagnosis. Existing tumor biopsy methods gen...

AI Technical Summary

Problems solved by technology

However, there is currently no tumor biopsy device suitable for use in laparoscopic surgery

The existing tumor biopsy device is in a relatively exposed environment of the body during application, which is not conducive to preventing the spread of tumor cells and cross-infection; the treatment of tumor incisions is not appropriate, which may cause damage to healthy cells

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