Disposable fracture traction repositor

Abstract

Disclosed is a disposable fracture traction repositor. The repositor comprises two T-shaped bone traction needles, a telescopic rod, two telescopic rod sleeves and two seal caps. Each of the T-shaped bone traction needles comprises cross rods and a vertical rod, and external threads are formed on the surfaces of the outer ends of the vertical rods. A manual rotation handle is arranged in the middle of the telescopic rod, and external threads are formed on the outer surfaces of the two ends. internal threads matched with the external threads on the telescopic rod are formed on the inner surfaces of the lower portions of the telescopic rod sleeves, three tooth grooves are formed in the top ends of each telescopic rod sleeve, and the two telescopic rod sleeves are in threaded connection with the outsides of the two ends of the telescopic rod symmetrically. Internal threads are formed on the inner surfaces of the seal caps, and the two seal caps are in threaded connection with the outsides of the top ends of two telescopic rod sleeves. The repositor has the advantages that fracture reduction in the surgery can be simplified; a traction bed or manual traction can be replaced; 5-axis linkage enables fracture reduction is accurate; the traction reduction can be operated easily through mechanics and biomechanics; the repositor is reasonable in structural design, safe and reliable and easy to operate.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to a disposable fracture traction resetter. Background technique [0002] In fracture internal fixation surgery, fracture reduction is a very important step, and it is also the most difficult step to operate, which often needs to be completed with the help of a traction bed or manual traction supplemented by instrument prying. Although some foreign fracture reducer products have been introduced into my country at present, they are made of metal, and they are stretched by 3-axis traction during use. Because the fracture reducer is located on the outside of the affected limb, it has a great impact on the surgical operation and the implantation of internal fixation, so it is rarely used clinically. Contents of the invention [0003] In order to solve the above problems, the object of the present invention is to provide a disposable fracture traction reducer with reasonable s...

AI Technical Summary

Problems solved by technology

Although some foreign fracture reducer products have been introduced into my country, they are made of metal, and they are stretched by 3-axis traction when used. The bone traction pins are fixed at both ends of the backbone, and they are stretched by mechanical force. Fracture reduction is more difficult.

Because the fracture reducer is located on the outside of the affected limb, it has a great impact on the surgical operation and internal fixation implantation, so it is rarely used clinically

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