Metal implant and surface processing method thereof

A technology for surface treatment and implants, used in dental implants, coatings, medical science, etc., to solve problems such as ventricular arrhythmia, increased surface roughness, operator burns, etc.

Inactive Publication Date: 2010-12-08
METAL INDS RES & DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, the acid used above is hydrofluoric acid, and those who are familiar with the chemical of hydrofluoric acid know that hydrofluoric acid is an extremely dangerous chemical, such as: hydrofluoric acid can pass through the mouth, nose, eyes or skin, etc. Enter the human body through the pathway, causing severe systemic poisoning symptoms such as hypocalcemia, hypomagnesemia, pulmonary edema, metabolic acidosis, ventricular arrhythmia, and even death
In addition, the second acid solution is a mixed solution of sulfuric acid/

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  • Metal implant and surface processing method thereof
  • Metal implant and surface processing method thereof
  • Metal implant and surface processing method thereof

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Embodiment Construction

[0035] figure 1 It is a flowchart of the metal implant surface treatment method of the present invention. see figure 1 , the method for metal implant surface treatment comprises: first, carry out a sandblasting treatment (step S100), that is to say, carry out a sandblasting treatment to a metal implant with a sand body, so, after the sandblasting treatment The surface of the metal implant has a plurality of micron-scale pits.

[0036] The step of sandblasting in this embodiment is to sandblast the metal implant after the degreasing and cleaning procedures with ceramic sand bodies (such as alumina sand, titanium dioxide sand) with a particle size of 200 μm or less, and the sandblasting pressure is 2-200 μm. 4Kg / cm 2 , the sandblasting distance is 1-5 cm, and the sandblasting time is 20-40 seconds, wherein the material of the metal implant can be a titanium metal, a titanium alloy or a metal containing titanium.

[0037] After that, a deoxidation and reoxidation treatment (s...

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Abstract

The invention discloses a metal implant. A plurality of micro-grade concave holes are formed on the surface of the metal implant and are internally provided with a plurality of submicro-grade concave holes, wherein the apertures of the micro-grade concave holes are between 1mu m and 100mu m; the apertures of the submicro-grade concave holes are between 100nm and 1000nm; and the surface average roughness of the metal implant is between 0.1mu m and 5mu m.

Description

technical field [0001] The invention relates to a metal implant and a surface treatment method thereof, in particular to a metal implant with a surface shape of a large cavity with small cavities and a surface treatment method thereof. Background technique [0002] At present, there are many methods for forming a porous structure on the surface of metal implants, such as sand blasting or acid etching, through which the surface of metal implants can be roughened. The degree of increase is beneficial to the cell attachment after the metal implant is implanted in the organism and shortens the wound healing time. [0003] For example, U.S. Patent No. US5456723 discloses a surface treatment method for metal implants. The treatment step is to use a diamond sand with a particle size of 250-500 μm for sandblasting, and then use high-temperature sulfuric acid (H 2 SO 4 ) / hydrochloric acid (HCl) mixed solution for acid etching to roughen the surface of the metal implant. [0004] H...

Claims

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Application Information

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IPC IPC(8): A61F2/02A61C8/00C23F1/16B24C1/00A61L27/06A61L27/30
Inventor 林怡郭子瑄施威任
Owner METAL INDS RES & DEV CENT
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