Smith Patent Office
Medical knife
A work 10 made of a hard wire rod of austenitic stainless steel is pressed at a rolling reduction of 60% or greater, into a paddle-shaped end 10b, and then subjected to work hardening, making the hardness of the end 10b 550 Hv or greater. Afterwards, the paddle-shaped end 10b is cut through machining, forming a main body 10c of a medical knife and cutting blades 10d. As a result, a medical knife, which is easily fabricated, is corrosion resistant, has sufficient hardness and sharpness, high toughness preventing cracks, can be provided.
Mani, Inc.
A A A A
A61B A61F A61B A61B
additional additional inventional additional
Kanji Masahiko
Matsutani Saito