Degradation type bone repairing material

Abstract

The invention discloses a degradation type bone repairing material, which comprises a mixed solid phase material and a liquid phase, wherein the mixed solid phase material comprises biological activity glass, calcium phosphate and magnesium silicate hydroxide, the liquid phase comprises blending solution, the particle size of the biological activity glass is smaller than 50[Mu]m, the particle size of the calcium phosphate is smaller than or equal to 100[Mu]m, and the particle size of the magnesium silicate hydroxide is smaller than or equal to 100[Mu]m. Through the above way, a biological activity glass-calcium phosphate-magnesium silicate hydroxide ternary system is adopted, so that the degradation type bone repairing material can be pushed for injection, exhibits ideal self-curing absorbability, can serve as a bone repairing substitute material, and can be used in percutaneous vertebroplasty, knee and hip joint replacement surgeries and other bone fracture surgeries.

Description

technical field [0001] The invention belongs to the technical field of medical biomaterials, in particular to a degradable bone repair material. Background technique [0002] With the development of biotechnology, the medical device industry, especially the orthopedic medical device technology and industry, is booming. At present, in orthopedic vertebroplasty and knee and hip replacement operations, bone cement is required to provide mechanical support or fixation of the replacement body. The number of vertebroplasty surgeries in China has increased from less than 20,000 per year in 2010 to 120,000 in 2015, with an expected annual growth rate of 15%. Vertebroplasty is for the injured patient's vertebral body to fracture and collapse for various reasons, causing pain and inability to move normally. The collapsed vertebral body must be propped up through surgery, so that the spine can slowly return to normal work and relieve the patient's pain. In knee and hip replacement su...

AI Technical Summary

Problems solved by technology

But the biggest problem is that the inert bone cement does not degrade and does not fuse with the bone tissue. After a few years, it will be like a hard stone in the patient's body, which will damage the surrounding tissues, and there is a possibility that the vertebral body will collapse and rupture again.