Implanted bone block for long bone deficiency

Abstract

The implantation bone block has biological compatibility and comprises a supporting cylinder, the supporting cylinder comprises an outer imitation cortical layer and an inner imitation cortical layer, an annular cavity is formed, a supporting layer is fixed to the far end of the annular cavity, and the annular cavity is filled with a plurality of supports in the annular direction. The support is provided with a first rod part, the near end of the first rod part protrudes out of the supporting cylinder, the far end of the first rod part is elastically fixed to the supporting layer, a second rod part is connected to the first rod part through connecting rods, the first rod part, the second rod part and the two connecting rods form a parallelogram mechanism, and the first rod part and the second rod part are located on the two opposite sides of the parallelogram mechanism. Each support is provided with a plurality of parallelogram mechanisms. After being stressed, the parallelogram mechanism deforms, the second rod part moves upwards and moves opposite to the first rod part, so that mechanical forces in different directions are generated in the bone block, the generation of bone cells can be promoted, and postoperative osteogenesis recovery is facilitated.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an implanted bone block for long bone loss. Background technique [0002] Worldwide, millions of bone substitute materials are used every year in orthopedic surgery to treat bone defects caused by tumor resection, nonunion fractures or osteonecrosis, as well as for spinal fusion and maxillofacial or osteoarticular reconstruction . Although the use of autografts is still considered the gold standard of care, limitations such as limited sources and donor site complications limit the use of autografts. At the same time, it promotes the research and development of bone substitute materials based on bone tissue engineering. Tissue engineering is becoming increasingly important in the field of biomedicine, which strives to design better and more complex biomaterials for various application scenarios. The production of three-dimensional porous scaffolds with remarkable resemb...

AI Technical Summary

Problems solved by technology

Although the use of autografts is still considered the gold standard of care, disadvantages such as limited sources and donor site complications limit the use of autografts

Images