Bionic fixing device for treating calcaneal fractures

Abstract

The invention discloses a bionic fixing device for treating calcaneal fractures and belongs to the technical field of medical apparatus and instruments for orthopedics. The bionic fixing device is used for treating the calcaneal fractures. The technical scheme provided by the invention is that two intramedullary nails are embedded into calcaneus and are connected in a cross way for resetting the injured calcaneus; bionic pores are respectively formed in the two intramedullary nails; the directions of the pores are consistent with that of bone trabecula at the pore positions; the pores can guide the bone trabecula to be grown into; the intramedullary nails are made of degradable medical magnesium alloys, do not need to perform secondary surgery to be taken out after being planted, and can be autonomously degraded. The bionic fixing device disclosed by the invention is an initiation in calcaneal surgery of the orthopedics; by adopting a bionic principle, the reconstruction of the bone trabecula is realized and the continuousness of the bone trabecula is restored according to the anatomy and biomechanics characteristics of the bone trabecula as well as the degradability of the intramedullary nails, thereby achieving the aim of effectively restoring local normal structures and mechanical conductivity of bone. The bionic fixing device also has the characteristics of improving a fixing effect, facilitating surgical procedures and the like, and is beneficial for restoration of normal functions of patients; an ideal therapeutic effect is realized.

Description

technical field [0001] The invention relates to a fixation device for treating root bone fractures, belonging to the technical field of orthopedic medical instruments. Background technique [0002] The calcaneus is the main weight-bearing bone of the human body, and the calcaneus is also the largest cancellous bone in the human tarsal bone. Calcaneal fractures are the most common tarsal bone fractures. In the treatment of fractures of the calcaneus, it cannot be ignored that accurate reduction and strong fixation are necessary prerequisites for early weight bearing and functional recovery. Therefore, no matter whether it is reduction or fixation, there is a problem in any link, which will lead to the occurrence of arthritis after calcaneus fracture, and then common heel pain will occur, which will bring unnecessary pain to the patient. Internal fixation is one of the main forms of treatment of calcaneal fractures, so the correct choice of internal fixation is helpful for th...

AI Technical Summary

Problems solved by technology

Due to the occupying effect of internal fixation, it will inevitably hinder the reconstruction of bone trabecula in the process of fracture healing, and cannot effectively restore the local normal structure and mechanical conductivity of the bone, which may lead to local stress concentration, resulting in internal fixation loosening, withdrawal, Complications such as fracture

At present, in the treatment of calcaneal fractures, the internal fixation uses general-purpose intramedullary nails, which inevitably produces the above-mentioned problems, which is not conducive to the postoperative recovery of patients, and even causes adverse consequences that it is difficult to restore normal functions. It has not been effectively solved and has become a difficult problem affecting the treatment of calcaneal fractures

Images