Patent ID: 7278965

Claim:
An operating mechanism for a medical device, the operating mechanism comprising: a switching unit operable to designate an operation of the medical device; an air-tight unit configured to accommodate the switching unit air-tightly; a moving member disposed inside the air-tight unit, and movable between a position in which the switching unit designates the operation and a position in which the switching unit designates no operation; a biasing unit configured to directly or indirectly bias the moving member from the position in which the switching unit designates the operation to the position in which the switching unit designates no operation; an operating member disposed on an outside of the air-tight unit, and comprising an elastic portion deformable in accordance with a user operation; and a switching-function change-over unit adapted to move the moving member by magnetic force into the position in which an operation is designated against the biasing force of the biasing unit in accordance with an elastic deformation of the elastic portion caused by the user operation of the operating member.