Medical implant, thin film thereon, and method for manufacturing the same

Abstract

A thin film of a medical implant includes a surface, a plurality of walls and a plurality of paths. The walls are disposed on the surface, and formed to shapes of arc. The paths are disposed on the surface, wherein each of the paths is located among the walls. The walls and paths have a plurality of holes. According to the thin film of the present disclosure, the walls are formed to shapes of arc, and have no acute anger, whereby the biological cells can helpfully grow and attach on the thin film quickly. Furthermore, the thin film has the holes, which provide cell tissue, such as pseudopod, tentacle, etc. of the biological cells to grow and attach therein, whereby the biological cyto-affinity of the thin film can be increased so as to increase the biological cyto-compatibility of the medical implant.

Description

technical field [0001] The invention relates to a medical implant, in particular to a medical implant capable of increasing affinity to biological cells, a surface film and a method for manufacturing the surface film. Background technique [0002] With the continuous increase of national income, the aging population structure, the introduction of new medical technology and other factors, the public's demand for medical care is increasing year by year, which also drives the growth of related medical and health industries, especially in the field of human medical implants. growth, such as teeth and bone implants. The current social population is gradually aging, and after a certain age, the joints, bones and teeth of the human body will gradually degenerate, which will cause many inconveniences in life. Only by implanting artificial substitutes or fixtures, such as Artificial teeth, artificial joints and artificial bone nails are used to replace or fix aging joints, bones and...

AI Technical Summary

Problems solved by technology

The initial treatment of the surface of medical implants is to use mechanical processing, but it takes a long time to complete osseointegration, which gradually does not meet the current medical needs

In recent years, oxidizing acids, such as sulfuric acid and hydrochloric acid, have been used to treat the surface of medical implants, and the effect has been proved to be better than mechanical processing. Different methods will result in different surface states, and the obtained surface roughness is still unstable and unsatisfactory, so it is still impossible to effectively improve the compatibility and affinity of medical implants to biological cells

[0004] The current manufacturing methods for the surface of medical implants to meet the conditions of compatibility and affinity for biological cells mainly include physical treatment methods such as sandblasting and acid etching (SLA process) and thermal spraying, as well as etching and hot gas oxidation. and other chemical reaction methods to achieve the compatibility and affinity of medical implants to biological cells. At present, the sandblasting and acid etching process is the mainstream, but the sandblasting and acid etching process will use chemicals that have a heavy burden on the environment , does not have the advantages of low-carbon environmental protection and clean cost

Although new surface treatment methods are still being proposed for medical implants, such as US Patent No. 5603338 and No. 5456723 and Taiwan Patent No. I244958, their effects are still limited and their rough surface structure cannot allow biological Cells have fast and good growth attachment, so the compatibility and affinity of medical implants to biological cells cannot be significantly improved

[0005] Therefore, the present invention proposes a kind of medical implant and its surface film and surface film manufacturing method in aiming at the above problems, which can not only improve the surface film that the above-mentioned prior art cannot provide fast and good biological cell compatibility and affinity In order to solve the above problems, it can reduce the manufacturing cost, increase the quality stability and reduce the environmental pollution.

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