orthopedic drill bit

Abstract

The invention discloses a drill bit for a department of orthopaedics. The drill bit comprises a drill rod assembly and a drill bit assembly, wherein the main body is cylindrical; a connecting seat is arranged at the upper end of the main body; an element rest parallel to a center shaft is arranged on the side wall of the main body; positioning teeth which are uniformly distributed in the length direction of the main body are arranged on the side wall of the main body; the drill bit assembly comprises a fixed drill bit, a first sliding drill bit, a second sliding drill bit and a third sliding drill bit; the upper end of the fixed drill bit and the drill rod assembly form an integral structure; central holes are formed in the first sliding drill bit, the second sliding drill bit and the third sliding drill bit which are sleeved on the drill rod assembly; sliding chutes and positioning pawls are arranged on the walls of the central holes; when the fixed drill bit, the first sliding drill bit, the second sliding drill bit and the third sliding drill bit are in tight contact, the fixed drill bit, the first sliding drill bit, the second sliding drill bit and the third sliding drill bit are tapered; a continuous spiral groove is formed in the outer side wall of the taper. During the clinical use process, the positions of the first sliding drill bit, the second sliding drill bit and the third sliding drill bit can be adjusted according to the requirements, so as to achieve the purpose of adjusting the opening diameter; in the process, the drill bit is not required to be changed, so that the drill bit is more convenient and fast to operate, and is obviously innovative.

Description

technical field [0001] The invention relates to a medical device, in particular to an orthopedic drill bit for clinical use in orthopedics. Background technique [0002] In orthopedic clinics, it is usually necessary to use a bone drill to open a hole in the bone, and according to different case conditions and surgical requirements, the requirements for the hole diameter of the hole are different. At present, the diameter of each drill bit is fixed, and there are many types. During clinical operation, different drill bits need to be replaced according to the size of the opening. On the one hand, the operation is more troublesome, and on the other hand, it also increases the need for drill bits to be replaced and fixed firmly. The risk probability increases its danger. Contents of the invention [0003] The purpose of the present invention is to provide an orthopedic drill bit which is easy to operate, safe to use, and can quickly adjust the size of the hole according to t...

AI Technical Summary

Problems solved by technology

At present, the diameter of each drill bit is fixed, and there are many types. During clinical operation, different drill bits need to be replaced according to the size of the opening. On the one hand, the operation is more troublesome, and on the other hand, it also increases the need for drill bits to be replaced and fixed firmly. risk probability, increasing its danger

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