Micropore processing method of bone repairing body rough surface

A bone restoration and rough surface technology, applied in bone implants, medical science, laser welding equipment, etc., to achieve strong controllability, simple process steps, and strong practicability

Active Publication Date: 2008-09-03
XIAN CONTINENTAL BIOMATERIALS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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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

Method used

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  • Micropore processing method of bone repairing body rough surface
  • Micropore processing method of bone repairing body rough surface

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Experimental program
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Embodiment Construction

[0023] First preferred embodiment:

[0024] A microporous treatment method for a rough surface of a bone prosthesis of the present invention comprises the following steps:

[0025] The first step, laser engraving: firstly, determine the surface 1 to be treated of the bone prosthesis, that is, the metal surgical implant. machine and etches a plurality of uniform and continuous micropores 2 on the surface 1 to be treated according to the conventional laser etching method. In this specific embodiment, the bone restoration to be processed is a craniofacial bone restoration made of a titanium alloy plate with a thickness of 2mm, and it is determined that the surface of the craniofacial bone restoration that is in long-term contact with human bone is to be treated. surface 1, and then laser etching can be started on the surface 1 to be treated.

[0026] The shape of the microhole 2 formed by laser etching is circular, triangular, square, rectangular or polygonal, and the cross-sec...

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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...

Claims

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Application Information

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IPC IPC(8): A61F2/28A61B17/56B23K26/00C23F1/16B23K26/362
Inventor 于振涛张亚峰刘春潮袁思波余森韩建业
Owner XIAN CONTINENTAL BIOMATERIALS CO LTD
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