Bone drill

Abstract

A bone drill of the present invention includes a housing and a drill bit; a power unit and a control unit are arranged in the shell; a pressure sensor is arranged at the joint of the power unit and the drill bit; the pressure sensor is used for outputting an electrical signal corresponding to the pressure applied to the drill bit, and the control unit is used for receiving the electrical signal and controlling the power unit to drive the drill bit to start or stop according to the electrical signal; the drill bit comprises a drill pipe and a drill bit assembly arranged on the drill pipe head in linkage; The drill bit assembly includes a positioning drill for positioning the drill pipe and a cutting drill for cutting bone, the cutting drill being disposed on the periphery of the positioningdrill. The bone drill of the invention has the advantages of good centering ability, high drilling precision and controllable drilling depth, alleviates the pain of patients and increases the medicalsafety.

Description

technical field [0001] The present invention relates to the field of medical devices, and more particularly, to a bone drill. Background technique [0002] Bone treatment is a difficult problem both at home and abroad. In hospital orthopedics, orthopedic electric drill (abbreviated as bone drill) is one of the commonly used surgical instruments. The safety of manual bone drills is not easy to guarantee, mainly as follows: the drilling depth, electric drill speed, and start-stop control are all controlled by the operator. For the operator, there is an obvious sense of failure at the moment of drilling through. This also causes the bone drill rotor to rotate at a high speed and pass through the contralateral bone cortex, which is difficult to control, and accidents of injury to blood vessels, nerves, and muscles may occur. [0003] In addition, most of the current orthopaedic drilling tools are in the form of twist drills, trephine drills or open cones, which have poor cente...

AI Technical Summary

Problems solved by technology

This also leads to the high-speed rotation of the bone drill through the contralateral cortex, which is difficult to control, and accidents that may injure blood vessels, nerves, and muscles may occur.

[0003] In addition, at present, most orthopedic bone drilling tools are in the form of twist drills, trephine drills or open-circuit cones, which have poor centering performance, and the position of the opening cannot be positioned accurately, which is likely to cause secondary trauma to the patient

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