A control arrangement for use in a medical or surgical instrument, which arrangement includes a keypad for providing manual control functions to a user of the instrument, a retainer clip and a sealing member. The keypad and retainer clip are located within an opening formed in the instrument housing,...http://www.google.fr/patents/US8115126?utm_source=gb-gplus-shareBrevet US8115126 - Self-sealing control arrangement for a medical instrument
Self-sealing control arrangement for a medical instrument
