Electric heating – Metal heating – By arc
Reexamination Certificate
2011-07-12
2011-07-12
Elve, M. Alexandra (Department: 3742)
Electric heating
Metal heating
By arc
C219S121700, C219S121660
Reexamination Certificate
active
07977603
ABSTRACT:
A method for manufacturing an eyeless needle by which a satisfactory hole can be formed in the end surface of a fine suture needle having a needle diameter less than 150 micrometers is proposed.In a method for manufacturing an eyeless needle by forming a hole for inserting and fixing one end of a suture thread by caulking in the end surface of the eyeless suture needle made of stainless steel, the hole is formed by irradiating the end surface of a needle material thicker by 6 to 20 micrometers than a desired needle diameter of the suture needle less than 150 micrometers with one shot of a laser beam, and subsequently, a portion thicker than the desired needle diameter is removed by electrolytic polishing or chemical polishing.
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Akaba Mieko
Akatsuka Masao
Fukuda Shoichi
Mashiko Masaki
Matsutani Kanji
Elve M. Alexandra
Farrar Joseph P.
MANI., Inc.
Orion Consulting, Ltd.
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