Corrosion preventing method

An anti-corrosion, metal-based technology, applied in the direction of dilators, catheters, brackets, etc., can solve problems that are difficult to prevent

Inactive Publication Date: 2007-10-17
ULVAC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] However, in the existing method of immersing the coating polymer resin in the wet system disclosed in Patent Document 1, it is difficult to prevent materials such as solvents that are toxic to living organisms from remaining in the substrate (sprayed with Ti)

Method used

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Examples

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Embodiment

[0043] Embodiments of the present invention will be described below.

[0044] Fig. 1 shows the vapor deposition polymerization apparatus used in this example. In the vapor deposition polymerization device represented by 1 in this figure, the metal substrate 10 to be treated for corrosion protection is fixed in the treatment chamber 3 connected with the vacuum system 2 by the fixing fixture 4, and the monomers of the two heating containers 6 The gas introduction port 7 communicates with the processing chamber 3, and heats each heating container to a predetermined temperature by the heater 5 located at the periphery. Pyromellitic anhydride (PMDA) is contained in one heating vessel 6, and 4,4'-oxidized diphenylamine (ODA) is contained in another heating vessel 6, and pyromellitic anhydride (PMDA) vapor gas is mixed with 4, 4'-Oxidized diphenylamine (ODA) vapor gas is introduced into the processing chamber 3 so that a polyimide coating can be formed on the surface of the metal su...

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Abstract

A method of corrosion prevention accompanied by bioaffinity so as to realize the application of Ni-Ti alloy to biomaterial usage. There is provided a method of corrosion prevention for a metal base material for use in biomaterials, characterized in that the metal base material is furnished with a polyamide coating through vapor deposition polymerization.

Description

technical field [0001] The present invention relates to an anticorrosion method of biological materials used for lead wires, catheters, brackets, etc. as inspection or treatment equipment as medical equipment, and orthodontic floss, implants, etc. as dental equipment. Background technique [0002] In recent years, uses utilizing the function of shape memory alloys typified by Ni-Ti alloys used in medical devices have attracted attention. The application range of Ni-Ti alloy in the medical field has been extended to wires, catheters, stents and so on. In addition, the use for implants such as dental instruments is also attracting attention. [0003] Metals used as medical devices, including the metals mentioned above, including metals for dental use, inevitably need to be corrosion-resistant and biocompatible because they are to be embedded or attached to living organisms. [0004] As a method of providing corrosion resistance to a base material, Non-Patent Document 1 discl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L31/00A61L27/00A61C7/20A61C8/00A61F2/84A61M25/00A61M25/01A61C7/12A61M25/09A61M29/00
CPCA61C8/0013A61C8/0012A61C7/12A61L27/34A61M25/0009A61L31/10C08L33/24A61L27/04
Inventor 入仓钢
Owner ULVAC INC
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