MEDICAL INSTRUMENT AND MEDICAL INSTRUMENT SET

A medical instrument has a first instrument part and second instrument part. The first and second instrument parts are mounted to one another, pivotable about a pivot axis, and coupled to one another with a connecting element. The connecting element has a head accommodated in a head recess on the first instrument part. The head recess is open pointing from the first instrument part in a direction away from the second instrument part. The head has a circumferential, self-contained first annular face pointing away from the longitudinal axis. The head recess has a circumferential, self-contained second annular face pointing toward the longitudinal axis. The first and second annular faces are separated by an annular gap. A sealing element is arranged in the annular gap, in contact with the first and second annular faces. A medical instrument set includes medical instruments differing in shape, type, and/or size.