Described herein are technologies related to an implementation of a divider-less digital phase-locked loop that includes a loop response matching a higher order sigma delta. The expansion-compressor device, the pump, and the motor generator are operatively connected and arranged in series. The assembly includes a clamping mechanism, including a clamp arm andor housing which are specifically configured to create a desired level of tissue clamping forces. The second bracket includes a plurality of second cutouts and a plurality of engaging portions.