Combined minimally invasive cutting biopsy device for bone tumour

Abstract

The invention relates to a combined minimally invasive cutting biopsy device for a bone tumour. The combined minimally invasive cutting biopsy device is structurally characterized in that a hollow annular drill is arranged in an external sleeve; the wall of the hollow annular drill is hollow and is provided with a spiral blade; the spiral blade is connected with a spiral blade knob by virtue of aconnecting rod; a trephine rotary handle is connected with the hollow annular drill; an electric drill joint is connected with the hollow annular drill; an inner core ejection rod is arranged in the hollow annular drill; and a Kirschner wire is arranged in the inner core ejection rod. According to the combined minimally invasive cutting biopsy device for the bone tumour, the defects that bone tissues and surrounding soft tissues are seriously damaged because biopsy after cutting causes serious pollution, irregular opened window and large area, and pathological fracture risk is increased can be solved. According to the invention, the cut sizes of cut biopsy skin and soft tissues are reduced, so that the pathological fracture risk in the future is lowered; and meanwhile, the pollution on the surrounding tissues by the tumour tissues and cells is reduced so as to prevent tumour cells from being transferred and diffused, thereby reducing patient pain, bringing convenience for operating, and lowering the risk of secondary pathological biopsy.

Description

technical field [0001] The invention relates to a medical device, in particular to a combined bone tumor minimally invasive incision biopsy device. Background technique [0002] Before the present invention, the means for bone tumor diagnosis included medical history, clinical imaging data and pathological diagnosis, and these three methods were combined for tumor diagnosis. Among them, pathological diagnosis occupies a very important position. Pathological diagnosis is divided into needle biopsy and incisional biopsy, in which incisional biopsy is to take out the pathological tissue under direct vision after anesthesia. This method is simple and intuitive, but it also has shortcomings. Its disadvantage is that the incision is generally about 3cm, and there is a lot of bleeding. During the biopsy, the fingers of the operator and the assistant cannot touch the incision, and sometimes it is difficult to stop the bleeding. The pollution of tumor cells in other parts, this me...

AI Technical Summary

Problems solved by technology

Its disadvantage is that the incision is generally about 3cm, and there is a lot of bleeding. During the biopsy, the fingers of the operator and the assistant cannot touch the incision, and sometimes it is difficult to stop the bleeding. The pollution of tumor cells in other parts, this method is more polluted, and the cortical bone is opened by electric drill and osteotome. Larger bone and surrounding soft tissue damage with increased risk of pathological fractures

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