Medical drilling tool with depth measurement function

Abstract

The invention provides a medical drilling tool with a depth measurement function. The medical drilling tool comprises a drilling tool body, a drill bit and a depth measurement assembly, wherein the depth measurement assembly comprises a single chip microcomputer, a shell, a sliding rail, a magnetic railing ruler and a damping device, wherein the shell is detachably connected on the drilling tool body, the sliding rail is fixedly connected with the shell, the magnetic railing ruler is slidingly connected with the sliding rail, the damping device is used for controlling the magnetic railing ruler, the magnetic railing ruler and the drill bit are arranged in parallel with each other, and the sliding direction of the magnetic railing ruler on the sliding rail is the same as the length direction of the magnetic railing ruler, the damping device is electrically connected with the single chip microcomputer, the single chip microcomputer is electrically connected with a power source or power line of the drilling tool body, or the single chip microcomputer is connected with the power source. The medical drilling tool with the depth measurement function has the advantages that by arranging the depth measurement assembly, the depth of a bone hole can be measured in real time while the bone is drilled, the operation is convenient, a large amount of time for measuring the hole depth can besaved, more time is saved, in addition, the depth of the bone hole is measured by adopting the magnetic railing ruler and using a principle of magnetic grid ranging, and the measurement accuracy is relatively higher.

Description

technical field [0001] The invention relates to a medical device, in particular to a medical drilling tool with a sounding function. Background technique [0002] Fracture refers to the complete or partial rupture of the continuity of bone structure, which is more common in children and the elderly, and sometimes occurs in young and middle-aged people. For severe fractures, the most effective treatment method is to drive steel nails into the fracture site through surgery, and connect and fix them with steel plates, so that the bones can heal together after growing, so as to achieve the purpose of treatment. A medical drill is usually used to make a hole in the bone. [0003] Existing medical drills usually do not have a depth-measuring function. However, after the doctor uses the medical drill to drill the bone on the patient's body, he needs to measure the depth of the drilled bone in order to determine the length of the steel nail to be driven into it. It is very importa...

AI Technical Summary

Problems solved by technology

[0003] Existing medical drills usually do not have a depth-measuring function. However, after the doctor uses the medical drill to drill the bone on the patient's body, he needs to measure the depth of the drilled bone in order to determine the length of the steel nail to be driven into it. It is very important to accurately select the length of the steel nail. If the steel nail is too long, it will penetrate into the muscle tissue too long and cause damage to the muscle tissue. If the steel nail is short, the fixation may not be firm, which will seriously affect the recovery of the patient.

At present, the mechanical bone hole sounder is mainly used for clinical measurement. The end of the probe of the bone hole sounder has a horizontal hook of about 2 mm. Due to the small size of the hook, it is often easy to slip off during sound measurement, and the hook does not Hold the bone cortex on the opposite side of the bone hole, and the probe of the depth gauge is too soft. When measuring the depth, use the probe to force slightly toward the direction of the hook. The cortex of the side bone hole often cannot be hooked to the cortex of the contralateral bone, and the operation is inconvenient; in addition, it takes an average of 1 to 2 minutes for each hole to be measured by the depth gauge and the measurement accuracy is not high. The error usually requires two doctors to measure and confirm separately, which is a waste of time and will have adverse effects on both doctors and patients

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