Micropore processing method of bone repairing body rough surface

Abstract

The invention discloses a micropore processing method for an open surface of a bone-prosthesis. The micropore processing method comprises the steps as follows: in the step of laser ablation, a plurality of micropores which are distributed uniformly and continuously are etched on the surface of the bone-prosthesis to be processed by using a laser engraving machine according to the conventional laser ablation method, the laser output power is 10 to 25W, the distance between a laser eradiating port and the etched surface is 1.5 to 2.5 mm when in etching, the cross-sectional area of each micropore is 1950 to 200000 micrometers<2>, and the depth is 5 to 500 micrometers; in the step of chemical milling, acid solution used for chemical milling is prepared by using HF, HNO3 and H2O, or HNO3, HF, H2O2 and H2O in an acid corrosion resistance container, then the etched bone-prosthesis is put in the acid solution to act the chemical milling on the open surface of the micropores, and then is washed by water. The steps are simple, the operation is simple and convenient, the controllability is good, the manufacturing cost is low, and the micropore processing method solves the difficult problem that the uniform and continuous micropore structure is formed on the surface of surgical implants.

Description

technical field [0001] The invention relates to the technical field of bone tissue repair, in particular to a method for treating micropores on the rough surface of a bone restoration body. Background technique [0002] Titanium alloy artificial joints, craniofacial bone prostheses and other surgical implants are widely used in orthopedic surgery. Through long-term observation of the clinical use of titanium implants, it was found that titanium alloy implants implanted in the living body A corresponding biological reaction will be induced, thereby forming a package around the implant, and the interface between the living bone tissue and the material can be clearly observed under a microscope. Now, studies have shown that increasing the roughness of the implant interface can improve the attachment and proliferation of living cells, thereby forming a tight interface structure. The research on bone tissue engineering scaffold materials shows that the microporous structure with...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for treating micropores on the rough surface of bone prostheses in view of the deficiencies in the above-mentioned prior art. The problem of forming a uniform continuous rough microporous structure on the surface of surgical implants

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