Bone scaffold

Abstract

The invention relates to a bone scaffold which is used for minimally invasive treatment of cancellous bone fractures of human beings and other animals, such as vertebral compression fracture, calcaneal fracture, tibial plateau collapse fracture and the like. The bone scaffold comprises a scaffold component I and a scaffold component II, wherein a dovetail tenon or a dovetail mortise on the inner side surface of the scaffold component II can slide, are completely inserted into the paired dovetail mortise or the dovetail tenon on the inner side surface of the scaffold component I, and are locked by a locking device, thereby completing the tenon-mortise joint and forming a whole; and the bone scaffold can play the roles of resetting, supporting and fixing in cancellous bone. An intermediate scaffold component can be arranged between the scaffold component I and the scaffold component II, the dovetail tenon or the dovetail mortise on the upper and the lower surface of the intermediate scaffold component can slide simultaneously, are completely inserted into the paired dovetail mortise or the dovetail tenon on the inner side surfaces of the scaffold component I and the scaffold component II, and are locked by the locking device, thereby completing the tenon-mortise joint and forming the whole. Each scaffold component is in the shape of a cuboid or a polygonal body. The transverse sections of the dovetail tenons and the dovetail mortises are shaped like dovetails, arcs or steps.

Description

technical field [0001] The invention relates to the fracture treatment of humans and other animals, in particular to an internal fixator for minimally invasive medical orthopedic surgery—bone support (intraosseous cage, IC). Bone scaffolds are mainly used for minimally invasive treatment of cancellous bone compression fractures, such as vertebral body compression fractures, calcaneal compression fractures, and tibial plateau collapse fractures. Background technique [0002] Cancellous bone fractures are often compression fractures, such as vertebral body compression fractures, calcaneal compression fractures, tibial plateau collapse fractures, etc. It is often difficult to reset by manipulation or surgery, even if it is reset, it will be due to the formation of bone defects in the cancellous bone , affect future bone healing, and even collapse and compression again. [0003] Vertebral compression fractures are fixed with the rear screw-rod system. After the vertebral body i...

AI Technical Summary

Problems solved by technology

In addition, unsatisfactory reduction of calcaneal fracture involving calcaneal-talar articular surface and tibial plateau fracture involving knee articular surface will leave osteoarthritis and affect the quality of life of patients in the future

[0004] Bone defects in cancellous bone are filled with bone cement and other fillers. Although it can fix cancellous bone fractures, it has vascular embolism, local leakage, cardiopulmonary toxicity, increased stress concentration and the incidence of cancellous bone fractures. If it is not absorbed, it cannot eventually achieve bone healing and other complications

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