Process for the heat treatment of surgical needles by aging

Details Process for the heat treatment of surgical needles by aging Process for the heat treatment of surgical needles by aging

1996-11-14

1998-07-21

Kilner, Christopher

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

606222, 164 5, A61B 1700, C21D 602, C21D 976

Patent

active

057830010

ABSTRACT:
A method of heat treating and cleaning maraging or precipitation hardening stainless steel surgical needles is disclosed. The method comprises exposing the surgical needles to a partial vacuum at a temperature less than the aging temperature to remove volatile surface contaminants. Then the needles are heat treated in an argon gas environment at a pressure equal to or greater than 1.0 atmosphere.

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