Non-contact surgical adapter electrical interface

A surgical instrument (10) includes a handle (20), an adaptor (30), and a non contact electrical interface (50). A proximal end of the adaptor (30) is releasably coupled to a distal end of the handle (20). The non-contact electrical interface (50) is configured to wirelessly transmit energy from the handle (20) to the adaptor (30) and is configured to wirelessly transmit data from the adaptor (30) to the handle (20). The electrical interface (50) may include a proximal coil (52) disposed within the handle (20) and a distal coil (54) disposed within the adaptor (30). When the adaptor (30) is coupled to the handle (20), the proximal coil (52) may be disposed adjacent the distal coil (54) to form a transformer (58) to inductively transfer energy from the handle (20) to the adaptor (30) and inductively transmit data from the adaptor (30) to the handle (20). C-4