A mesochronous clock system and method to minimize latency and buffer requirements for data transfer in a large multiprocessor computing system. Wherein the means for measuring the body fluid may include micro-porous test strips, an electronic testing device, an opticalreflectance testing measuring device, or a visual inspection. Each handpiece is customized to activate when operated one of several preset operating modes of the electrosurgical instrument. The sensor assembly is removed and the replaced part is installed back into the artificial extremity, while retaining the optimized settings.