Mobile adjustable orthopedic Kirschner wire positioning guide device

Abstract

The invention discloses a mobile orthopedic Kirschner wire positioning guide device. The device comprises an operation platform, a lifting unit, a steering unit and a guide sleeve; the operation platform is made of ferromagnetic materials, the lower end of the lifting unit is provided with a base cooperatively fixed with the operation platform, and a horizontal driving shaft is connected to the base through a bearing; the base is internally provided with a strong magnetic system, the strong magnetic system comprises fixed magnetic steel and rotary core magnetic steel arranged in the driving shaft, the driving shaft is connected with a handle, the handle drives the rotating shaft to rotate, and through different polarities or the same polarity of the rotary core magnetic steel and the fixedmagnetic steel, different attraction forces are generated on the operation platform to fix or release the base; the lifting unit comprises a lower shell body, an upper shell body, a battery arrangedin the lower shell body, a circuit board, a motor, a speed reducer, a screw rod and a lifting nut, and the screw rod and the nut are in matched screw connection with each other; the device is suitablefor fixing a Kirschner wire inserted in various directions to prevent the Kirschner wire from deviation when the Kirschner wire penetrates into the human body.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a mobile-adjustable orthopedic Kirschner wire positioning guide. Background technique [0002] Fracture refers to a disease in which the bone is partially or completely broken due to trauma or pathology. When treating a fracture, the broken end of the bone that has been displaced after the fracture is usually restored to normal or close to the original normal position. After reset, because it is unstable, it is prone to redisplacement. Therefore, different methods should be used to fix it in a satisfactory position to make it heal gradually. There are two kinds of fixation methods: external fixation and internal fixation. [0003] Kirschner wire fixation is a common method of internal fixation. Kirschner wire fixation is usually used for some unstable fractures. Clinically, Kirschner wire fixation is used for short bones, irregular bones, adjacent joint fracture fixation ...

AI Technical Summary

Problems solved by technology

[0004] When fixing the Kirschner wire, it is first necessary to install one end of the Kirschner wire on the electric drill, then turn on the electric drill, and drive the Kirschner wire into the bone to be fixed. The Kirschner wire needs to be inserted accurately according to the predetermined angle and position. During the process, once the doctor’s hand-held electric drill shakes, causing the inaccurate angle and position of the insertion, the Kirschner wire needs to be pulled out and re-inserted. One operation often requires multiple injections, which invisibly aggravates the secondary damage. It further destroys the blood supply, prolongs the operation time, and affects the treatment effect. It is difficult to grasp the angle and position of the Kirschner wire insertion process, so the one-time success rate of Kirschner wire fixation is low

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