Metal implant with high-density surface for orthopedics department

Abstract

The invention discloses a metal implant with a high-density surface for an orthopedics department. The metal implant with the high-density surface for the orthopedics department mainly comprises a metal intramedullary nail system, a metal bone plate set system, a spinal fixator system, a metal bone nail and other metal implants for the orthopedics department. The metal implant with the high-density surface for the orthopedics department is characterized in that a high-density layer is arranged on the surface of a weaker-strength part of the metal implant with the high-density surface for the orthopedics department. The high-density layer can be obtained by adopting an extrusion method such as rolling, vibrating, ultrasonic wave and knocking, so that the surface layer grains of the metal implant are fined, the density is increased, the internal stress is eliminated, the surface smoothness is improved, the properties such as fatigue strength, bending strength, structure and torsional rigidity of a product are improved, the phenomena such as distortion and fracture of the clinical metal implant are reduced, and thus the success rate and the cure rate of a surgery are improved.

Description

Technical field [0001] The invention relates to the technical field of medical devices. Background technique [0002] At present, in osteopathy, metal implants are used for internal fixation, such as metal intramedullary nails, metal bone plates, etc., which have been widely used clinically. In order to reduce the damage to the human body during surgery, reduce metal implants The volume of the implant is an effective method, such as thinning metal intramedullary nails and bone screws, thinning bone plates, etc. However, under the premise of the same raw materials, the reduction of the volume of the metal implant will reduce its fatigue strength , Bending strength and other properties, so there are defects such as distortion and fracture of metal implants. Summary of the invention [0003] The present invention overcomes the above defects and discloses a high-density surface orthopedic metal implant, which mainly includes orthopedic metal implants, and is characterized in that the...

AI Technical Summary

Problems solved by technology

[0002] At present, in osteopathic medicine, metal implants are used for internal fixation, such as metal intramedullary nails, metal bone plates, etc., which have been widely used clinically. The volume of the implant is an effective method, such as thinning the metal intramedullary nail, bone screw, and bone plate, etc. However, under the premise of the same raw material, reducing the volume of the metal implant will reduce its fatigue strength , bending strength and other properties, so there are defects such as distortion and fracture of metal implants

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