Elastic intramedullary nail

Abstract

The invention discloses a flexible intramedullary nail, which pertains to the technical field of orthopedic medical devices and aims at providing a flexible intramedullary nail which can spare secondary operation, eliminate stress shielding, promote fracture healing and has the advantages of simple structure, practicality and low cost. The technical proposal of the invention is that a nail pole of the intramedullary nail consists of a proximal-end nail body, a distal-end nail body and a spring body, wherein, the proximal-end nail body and the distal-end nail body are positioned at both ends of the nail pole respectively and a proximal-end fixed screw hole and a distal-end fixed screw hole are arranged on the two ends; the spring body is arranged in the middle of the nail pole and both ends of the spring body are tightly connected with the proximal-end nail body and the distal-end nail body respectively; the length and quantity of the spring body can be adjusted according to the characteristics of a long bone and the diameter of the spring body can be 2mm to 6mm and can be adjusted according to the requirements of fracture fixing. The flexible intramedullary nail has simple structure and innovative design, resolves the problems of eliminating stress shielding, promoting fracture healing, avoiding secondary operation, and the like after the intrameduallary nail is put in the body, and also has the advantages of simple structure, practicality and low cost.

Description

technical field [0001] The invention relates to an intramedullary nail used for internal fixation of backbone fractures in orthopedic clinical treatment, and belongs to the technical field of orthopedic medical devices. Background technique [0002] Human long bone fracture is a common disease in orthopedic medicine. In clinical treatment, intramedullary nails are usually inserted into the medullary cavity of the bone to connect and fix the fracture ends. The intramedullary nail is a medical device for treating long bone fractures of the extremities. However, due to its own rigid structure, during the insertion of the intramedullary nail, there is compression on the soft tissue and bone tissue near the incision, resulting in a certain degree of loss. The important thing is that the intramedullary nail is fixed axially, and the main nail may be bent, broken, or locked and broken. With the progress and development of treatment technology, technicians have designed a variety o...

AI Technical Summary

Problems solved by technology

For this reason, technicians have designed a variety of intramedullary nails to try to solve this problem, but the structure is relatively complicated, the manufacturing process is high, the price is expensive, the operation is relatively complicated, and the promotion effect is affected. Therefore, how to design a simpler, more practical, better-effect, Inexpensive intramedullary nails have always been a problem that plagues the development of bone fracture fixation technology in orthopedic clinical treatment

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