Kirschner wire propeller for orthopedics department

Abstract

The invention discloses a kirschner wire propeller for an orthopedics department. The kirschner wire propeller comprises a propulsion unit, an accommodating tube and a locking unit for fixing the kirschner wire. The propulsion unit comprises a fixing sleeve, an adjusting sleeve, a transmission push rod and a joint assembly. The transmission push rod is provided with a threaded portion, an internalthread meshing with the threaded portion of the transmission push rod is arranged the right end of the fixing sleeve, the adjusting sleeve is connected to the right end of the fixing sleeve, and theadjusting sleeve can rotate around the axis of the fixing sleeve. The joint assembly is connected to the right end of the transmission push rod, guiding grooves matched with the joint assembly are formed in the inner circumference of the adjusting sleeve, the accommodating tube is connected to the left end of the fixing sleeve, and the locking unit is arranged in the accommodating tube. The rightend of the locking unit is matched with the left end of the transmission push rod in an abutting mode, and the locking unit comprises a machine seat, a plurality of locking pieces, a guiding disc andan actuating rotary disc. The machine seat, the guiding disc and the actuating rotary disc are provided with circular through holes of the same size and with the center as center of circles. The use is simple and convenient.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a Kirschner wire propeller for orthopedics. Background technique [0002] Kirschner wire is a commonly used internal fixation material in orthopedics. Its original size is generally fixed at about 20 cm, and there are several different sizes with a diameter of 0.5-2 mm. It is used to fix stress such as short fractures or avulsion fractures. Small fracture fixation is also often used in the fixation of temporary fracture fragments in orthopedic surgery. [0003] Clinically, when orthopedic surgeons fix the fractured part of the patient, the doctor usually drills a hole at the joint of the bone with an electric drill, and then requires the doctor to hold the Kirschner wire with one hand, and smash the Kirschner wire into the hole with the other hand using a hammer , Sometimes it may cause damage to the patient's bone due to excessive force, and sometimes the chuck is used ...

AI Technical Summary

Problems solved by technology

[0003] Clinically, when orthopedic surgeons fix the fractured part of the patient, the doctor usually drills a hole at the joint of the bone with an electric drill, and then requires the doctor to hold the Kirschner wire with one hand, and smash the Kirschner wire into the hole with the other hand using a hammer , Sometimes it may cause damage to the patient's bone due to excessive force, and sometimes the chuck is used to hold the Kirschner wire, but the radius adjustment range of the chuck is limited and cannot adapt to a larger range of Kirschner wire models, so when using, the clip The head is not universal. It is more common to use multiple heads to meet the Kirschner wires of different specifications. It is inconvenient to use, and the clamping feel is not good, which greatly reduces the efficiency of the operation.

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