Sealing arrangement for a medical piston and cylinder unit comprises a clamping element for pressing a sealing element against the bearing area of the piston for formation of a sealing edge

摘要

The sealing arrangement (10) for a medical piston and cylinder unit (16, 12) comprises a clamping element with a threaded section (42) for pressing a sealing element (18) against the bearing area (20) of the piston for formation of a sealing edge against the cylinder inner surface (52). An independent claim is also included for an implant which is intended for a human or animal body and incorporates a piston and cylinder unit with the proposed sealing arrangement.