MEDICAL KNIFE

PROBLEM TO BE SOLVED: To provide a medical knife, to/from whose blade attachment part a blade can be easily attached/detached. SOLUTION: An engaging concave part 32 provided on the blade 27 can be detachably fitted in an engaging convex part 5 provided on the blade attachment part 2, and a fastening member 14 can set an attachable/detachable position that enables the blade 27 to be fitted in/detached from the blade attachment part 2 and an attachment/detachment control position P that controls the attachment and detachment. The fastening member 14 has a movable convex part 17 to move toward the engaging convex part 5 between the attachable/detachable position and the attachment/detachment control position P. The engaging concave part 32 is detachably fit in the engaging convex part 5 and the movable convex part 17 at the attachable/detachable position of the fastening member 14, and the movable convex part 17 is provided with a fastening groove to fasten an inner periphery of the engaging concave part 32 at the attachment/detachment control position P of the fastening member 14. COPYRIGHT: (C)2007,JPO&INPIT