Disposable sterile orthopedic drill bit

Abstract

The invention relates to technical field of medical instruments and equipment, in particular to a disposable sterile drill for the orthopedics department. The drill is characterized by comprising a drill center rod, a drill body and auxiliary drilling sleeves; the bottom of the center rod is integrally connected with the drill body; threaded segments are arranged at the end, close to the drill body, of the drill center rod, and the drill center rod is in threaded connection with threaded grooves in the tops of the auxiliary drilling sleeves through the threaded segments; milling cutters distributed in an annular shape are arranged on the bottom end faces of the auxiliary drilling sleeves; gaps are formed between the inner circumferences of the auxiliary drilling sleeves and the drill center rod, and annular through hole communicated with the gaps are formed in the tops of the auxiliary drilling sleeves. According to the disposable sterile drill for the orthopedics department, by arranging the auxiliary milling cutters distributed in the annular shape, the working intensity of the drill is lowered, and slight cooling is achieved; bone debris can be milled by the auxiliary milling cutters and guided and discharged through the gaps and threaded rotation teeth, and the possibility of bone fracturing during bone drilling is reduced; through a mode of filling cooling liquid by usingthe hollow drill center rod, cooling is achieved, and the effects of lowering the temperature of the drill and protecting the peripheral skeleton are achieved.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a disposable aseptic orthopedic drill. Background technique [0002] In orthopedic clinics, bone drilling is a common operation; however, due to the existing equipment factors, the bone drilling process will generate high temperature and cause local osteonecrosis; at the same time, the existing drill bit will produce a lot of bone debris, and if the bone debris is not Timely discharge can easily cause the bones to be swollen and cracked, causing secondary injuries. In the past, the measure to reduce the temperature of the drilled bone was to blow the high-pressure cold air into the drilled bone to quickly take away the heat on the surface of the drill bit; however, this method has little effect, and at the same time, it is easy to cause blood splashing during the drilled bone; it is obviously an unscientific method. . Contents of the invention [0003] In view of th...

AI Technical Summary

Problems solved by technology

[0002] In orthopedic clinics, bone drilling is a common operation; however, due to the existing equipment factors, the bone drilling process will generate high temperature and cause local osteonecrosis; at the same time, the existing drill bit will produce a lot of bone debris, and if the bone debris is not Timely discharge may easily cause the bones to be swollen and cracked, causing secondary damage

In the past, the measure to reduce the temperature of the drilled bone was to blow the high-pressure cold air into the drilled bone to quickly take away the heat on the surface of the drill bit; however, this method has little effect, and at the same time, it is easy to cause blood splashing during the drilled bone; it is obviously an unscientific method.

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