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Surface porous implant with bioactivity

A bioactive, porous surface technology, applied in the field of medical bioimplantation materials, can solve the problems of low mechanical strength, assembly accuracy that cannot meet actual needs, and high manufacturing costs, so as to improve bioactivity, accelerate bone deposition, and reduce manufacturing costs. Effect

Active Publication Date: 2015-06-17
JIANGSU TRAUSIM MEDICAL INSTR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional 3D printing implants have problems such as low mechanical strength, assembly accuracy that cannot meet actual needs, and high manufacturing costs.

Method used

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  • Surface porous implant with bioactivity
  • Surface porous implant with bioactivity
  • Surface porous implant with bioactivity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The steps of processing the implant of Φ3.3mm×10mm are as follows: the length of the threaded section 10 is 4mm, the length of the connecting screw is 6mm, the length of the porous sleeve 20 is 4mm, the length of the bolt structure 30 is 2mm, and the length of the threaded section is determined according to the actual length of the implant is 4mm, but the length of the porous sleeve 20 needs to be determined according to the length of the processed implant, so the length of the bolt structure 30 is 2mm; the diameter of the through hole 21 is 100 microns, the distance between the hole center diameters is 150 microns, and the particle size of the titanium powder is 10-30 microns, the inert gas is nitrogen, the scanning speed is 1m / s, and the spot diameter is 20 microns; the head 1, middle part 2, and tail part 3 are fixedly connected by square limit bolts; then the obtained Φ3.3mm×10mm The sandblasting pressure for the surface treatment of the combination is 0.3bar, the pa...

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Abstract

The invention relates to a surface porous implant with bioactivity. The implant is a separable combined body which consists of a head part, a middle part and a tail part along the longitudinal axis, wherein the head part is a connecting structure connected with a repair base, the middle part is a porous sleeve formed by virtue of 3D (Three-Dimensional) printing, and the tail part is a bolt structure. The head part and the tail part are machined. The implant provided by the invention can be used for solving the problems that conventional 3D printed implant is low in mechanical strength and high in manufacturing cost, and the assembly accuracy cannot satisfy the actual need and the like, and is high in mechanical strength, simple in machining process and low in manufacturing cost.

Description

technical field [0001] The invention belongs to the field of medical biological implant materials, in particular to a surface porous bioactive implant. Background technique [0002] Titanium and titanium alloy materials have been used in human implants for more than 30 years, and are now the most important materials for orthopedic implants and dental implants. Titanium and titanium alloys are used as implant materials, especially permanent implant materials such as artificial joints, artificial intervertebral discs, dental implants, etc., which must directly interact with human tissue and the surface of the metal implant to make the implant and surrounding tissue Fusion and good osseointegration. With the development of biomedical engineering and surface treatment technology, the surface modification of titanium and titanium alloys through various modern technical means can greatly improve the biocompatibility, biological activity and corrosion resistance of implant materia...

Claims

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Application Information

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IPC IPC(8): A61C8/00
Inventor 罗志聪祝伟宁赖红昌
Owner JIANGSU TRAUSIM MEDICAL INSTR
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