Trabecular bone structure and prosthesis using the structure

Abstract

The invention relates to the field of medical prostheses, and discloses a trabecular bone structure and a prosthesis using the structure. The trabecular bone structure comprises a body, wherein the body is constructed into a three-dimensional porous structure; the three-dimensional porous structure comprises a plurality of wire diameters and a plurality of pores formed by interlacing and connecting the wire diameters; each pore is communicated with each other, and the equivalent diameter of each pore is different; and the equivalent diameter of each pore ranges from 100 to 400 microns, and theporosity of the three-dimensional porous structure ranges from 50 to 80%. The trabecular bone structure is more beneficial to bone ingrowth of patients after surgery, so that the recovery effect of patients after surgery can be effectively improved.

Description

technical field [0001] The invention relates to the field of medical prosthesis, in particular to a bone trabecular structure and a prosthesis using the same. Background technique [0002] In surgical medical operations, when tumors occur in the backbone of the limbs of the human body, nonunions after fractures, or other lesions lead to partial bone defects or surgical resection, they need to be replaced with artificial prostheses. In the operation of replacing the prosthesis, it is necessary to connect, fix and integrate the artificial prosthesis and bone tissue to restore the physiological function of the limb backbone. [0003] At present, most of the existing prostheses are bone cement fixed prosthesis and bio-fixed prosthesis coated with titanium powder. Bone cement fixed prosthesis may have a greater risk of prosthesis loosening in the later stage, resulting in surgical failure; and Titanium powder-coated prostheses will corrode metal materials in the complex environm...

AI Technical Summary

Problems solved by technology

However, the pores of the existing trabecular bone structure are usually uniformly distributed in equal diameters, lacking the bionic characteristics of the real structure of the human body. During the actual service after implantation, some parts of it are often caused by the unequal stress characteristics of the human body. The structural strength is insufficient, but the structural strength of other parts has been designed. If the structure of the trabecular bone lacks the best state of the surface that combines with the bone, it will directly affect the early stability of the prosthesis, which will also affect the growth of the bone. , is not conducive to long-term stable prosthesis service

Images