Abstract: A surgical instrument that comprises a surgical end effector, a handle that is connected to the surgical end effector and has a controller, and an interchangeable part removably connected to the surgical end effector and having an encryption device in electrical communication with the controller. The encryption device is programmed to authenticate the interchangeable part when the interchangeable part is at the surgical end effector.

Abstract: A battery assembly for use in a number of battery-powered, cordless ultrasonic surgical instruments with handles having a battery chamber and coupled to different ultrasonic waveguide types, comprises a housing having an exterior shape formed to removably connect with the battery chamber of the handles. The housing has at least one energy storage cell operable to power an ultrasonic-signal-generation assembly of the surgical instruments. The ultrasonic-signal-generation assembly is operable to dynamically produce a resonant wave along an ultrasonic waveguide. A battery/handle interface has a plurality of connectors shaped to mate with a plurality of corresponding connectors within the battery chamber of the handles. A voltage-control circuit communicatively couples with and provides power to the ultrasonic-signal-generation assembly, detects which one of the ultrasonic waveguide types is coupled to the handle connected to the housing, and provides an output in response to the detected waveguide type.

Abstract: A battery assembly for use in a number of battery-powered, cordless ultrasonic surgical instruments with handles having a battery chamber and coupled to different ultrasonic waveguide types, comprises a housing having an exterior shape formed to removably connect with the battery chamber of the handles. The housing has at least one energy storage cell operable to power an ultrasonic-signal-generation assembly of the surgical instruments. The ultrasonic-signal-generation assembly is operable to dynamically produce a resonant wave along an ultrasonic waveguide. A battery/handle interface has a plurality of connectors shaped to mate with a plurality of corresponding connectors within the battery chamber of the handles. A voltage-control circuit communicatively couples with and provides power to the ultrasonic-signal-generation assembly, detects which one of the ultrasonic waveguide types is coupled to the handle connected to the housing, and provides an output in response to the detected waveguide type.