Orthopedic screwdriver

Abstract

The invention provides a screw driver for an orthopedic surgery. The screw driver for the orthopedic surgery comprises a driving wheel, a handle, a tool bar and a tool bit, wherein the handle, the tool bar and the tool bit are sequentially connected, and the driving wheel is arranged on the tool bar and used for a fixing device for clamping screws. The fixing device comprises a turning bar, a sliding sleeve, a driven wheel, a synchronous wheel, a first clamping device, a second clamping device, a moving device and a fixing plate, wherein the turning bar and the tool bar are parallelly arranged at intervals, one end of the sliding sleeve sleeves the too bar, the other end of the sliding sleeve is pivotally connected with the turning bar, the driven wheel is arranged on the turning bar and engaged with the driving wheel, the synchronous wheel is arranged on the turning bar, the first clamping device and the second clamping device are oppositely arranged, the moving device is arranged between the first clamping device and the second clamping device, and the fixing plate is used for fixing the first clamping device and the second clamping device and can rotate the first clamping device and the second clamping device. Compared with related technology, the screw driver for the orthopedic surgery is convenient to operate, secondary injury to patients is avoided, surgical efficiency is improved, and surgical time is shortened.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a screwdriver for orthopedic surgery. Background technique [0002] There are as many as millions of cases of surgical internal fixation due to fractures in the world. The internal fixation mainly involves placing some metal materials into the human body, and the cases treated by internal fixation with steel plates need to be replaced by bone nails, steel plates after the broken bones heal. take out. Due to the small size of the screw, when using the current screwdriver for fixation, the position and direction of the screw need to be adjusted with the help of nail holders. When the incision of the surgical site is small, it is inconvenient to use the nail holder to adjust the position of the screw, which brings inconvenience to the medical staff . In addition, the screws are often deformed when subjected to large stresses in the body, which greatly increases the fri...

AI Technical Summary

Problems solved by technology

Due to the small size of the screw, when using the current screwdriver for fixation, the position and direction of the screw need to be adjusted with the help of nail holders. When the incision of the surgical site is small, it is inconvenient to use the nail holder to adjust the position of the screw, which brings inconvenience to the medical staff

In addition, the screws are often deformed when subjected to high stress in the body, which greatly increases the frictional resistance of the screws, and it is very laborious to unscrew the screws, which increases the difficulty of removal and prolongs the operation time

[0003] In addition, when the screw is tightened or taken out, the surgeon's field of vision is often affected by the bleeding of the surrounding tissue, which increases the pain of the patient.

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