Hand-operated orthopedic Kirschner needle positioning guide

Abstract

The invention discloses a hand-operated orthopedic Kirschner needle positioning guide which comprises an operation platform, a lifting unit, a steering unit and a guiding unit. The lifting unit is vertically arranged on the operation platform and comprises a lower shell, an upper shell, a lifting screw and a lifting nut, one end of a driving shaft is fixedly connected with a driving bevel gear while the other end of the same is fixedly connected with an adjusting handle, and the lower end of a lifting driving rod is fixedly connected with a driven bevel gear; the steering unit comprises a barrel, a lower gasket, a ball, an upper gasket, a locking block, a cover plate and a locking knob component, a first fixing arm is arranged on the barrel and connected with a guiding ring which sleeves the upper shell, and a second fixing arm is arranged at the lower end of the ball and connected with a sleeve; the guiding unit comprises a guiding target sleeve, a sliding arm integrated with the guiding target sleeve and a guiding sleeve which is composed of a fixing seat and a needle guiding sleeve. The positioning guide is suitable for needle feeding and fixing in various directions and can ensure a Kirschner needle to be accurately driven in according to a preset angle and position.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a hand-operated 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 and ...

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

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