Intramedullary fixing device capable of effectively promoting fracture healing

Abstract

The invention discloses an intramedullary fixing device capable of effectively promoting fracture healing, and belongs to the technical field of orthopaedic medical instruments. The intramedullary fixing device is used for fixing a fracture portion and promoting healing. According to the technical scheme, the intramedullary fixing device is in the shape of a cylinder or an oval cylinder, the cylinder is formed by connecting multiple short cylinder bodies and stand columns, and pull rods are arranged between every two adjacent short cylinder bodies. By means of the structure, the overall elasticity modulus of the cylinder is better, the internal fixing strength is enhanced, and the conditions of breaking, stress fracturing and the like can be prevented from occurring; meanwhile, bone trabeculae can be allowed to grow into gaps between the stand columns and the pull rods which are arranged among the short cylinder bodies in a connected mode, the purpose of simultaneous growing of intramedullary and extramedullary calluses is achieved, the facture healing time is shortened, and various complications of the facture and an operation are reduced. The intramedullary fixing device is innovation of a facture reduction and fixation technique, the long-standing, big and difficult problems that after the osteoportic fracture of old people is treated, cancellous substance healing is worse, the bone healing intensity is influenced, and sometime delayed fracture healing and refracture can be caused are solved, and the significant economic and social benefits are achieved.

Description

technical field [0001] The invention relates to an intramedullary fixation device for fixing fractures and promoting healing, and belongs to the technical field of orthopedic medical devices. Background technique [0002] Long bone fractures are common clinical fractures, and open reduction, plate fixation and intramedullary nail fixation are now mostly used. The traditional plate internal fixation has long incisions and large trauma. During the treatment, it is necessary to incise the tissue to expose the fracture area, and then perform reduction and internal fixation. This method has great damage to the soft tissue around the fracture, more intraoperative bleeding, and more side injuries. It takes a long time for the patient to recover after the operation. Intramedullary nailing requires reaming, which brings corresponding complications of reaming, such as fat embolism and pulmonary embolism. The more general impact is that after the fracture internal fixation is placed,...

AI Technical Summary

Problems solved by technology

In addition, the proximal and distal ends of the long bone intramedullary fixation system are thicker, the damage to the bone trabecular structure is more serious, and the space occupying effect is more obvious, which affects the growth of the bone trabecula and is not conducive to the recovery of the bone structure in the later stage.

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