Surgical machine with inductively stored electric energy driven electric motor

摘要

The machine housing (1) contains a battery driven electric motor, whose output shaft is brought out from the housing. The batteries (6, 7) are located in a jacketed vessel (2) in the housing, whose walls (3, 4) a mirror-coated and the space (5) between the walls is evacuated (a Dewar vessel). The Dewar vessel opening can be closed by a stopper (10) of material with a low thermal conductivity. Pref. the Dewar vessel is fitted with an inductive coil (9), coupled to the batteries, for inductive transmission of electric power from outside the housing into the batteries.