Title:
METHOD OF PROCESSING METAL MATERIAL FOR MEDICAL INSTRUMENTS
Document Type and Number:
WIPO Patent Application WO/1993/015867
Kind Code:
A1
Abstract:
To form to a complicated shape as designed a metal material for medical instruments, such as titanium and a titanium alloy, which have a high non-eluting feature and a high corrosion resistance as materials to be implanted and as materials for medical instruments, such as an instrument for a surgical operation, by excellent precision processing techniques, i.e. electric discharge machining, whereby a product can fully display the function thereof specific to a medical instrument, and be furnished with a high non-eluting feature and a high corrosion resistance. When the electric discharge machining having an excellent processability is applied to the production of a medical instrument from a metal material for the production of such instruments which has a high non-eluting feature and a high corrosion resistance, such as titanium or a titanium alloy, an electrode wire is formed out of titanium or a titanium alloy or platinum or a platinum alloy so as not to spoil the inherently high non-eluting feature and corrosion resistance of these metal materials, and so as to enable a medical instrument to be produced as designed with a high machining precision. The manufacturing of a medical instrument of a complicated shape out of a metal material having high non-eluting feature and corrosion resistance is done by electric discharge machining so as not to spoil the inherently high non-eluting feature and corrosion resistance and so as to prevent impurities from being mixed in the product from a machining jig, ensure the high corrosion resistance and non-eluting feature of the product in a living body, and contribute much to various kinds of industrial fields, such as medical, dental and stock farming fields.
Inventors:
FUJIWARA MASAHIRO (JP)
ISHII NOBUO (JP)
HORIKAWA TAKASHI (JP)
KOYAMA KAZUAKI (JP)
ISHII NOBUO (JP)
HORIKAWA TAKASHI (JP)
KOYAMA KAZUAKI (JP)
Application Number:
PCT/JP1993/000169
Publication Date:
August 19, 1993
Filing Date:
February 10, 1993
Export Citation:
Assignee:
ISHIFUKU METAL IND (JP)
International Classes:
A61B17/00; A61C8/00; B23H7/08; (IPC1-7): B23H7/08
Foreign References:
| JPS63203262A | 1988-08-23 | |||
| JPS6348656B2 | 1988-09-30 | |||
| JPS6381018A | 1988-04-11 |
Other References:
See also references of EP 0584366A4
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