Patent ID: 9511184
Filing Date: 2016-12-06
CPC Classification: A61B,A61M

Claim Text:
1. A surgical pump system for providing fluid to a surgical site and including an inflow cannula for use in surgery comprising: an inflow drive mechanism including an inflow pump motor for outputting fluid to a surgical site via an inflow cannula; an inflow pump cassette for securing to the inflow drive mechanism; a pump housing configured to include said inflow drive mechanism, said pump housing configured to receive the inflow pump cassette in driving relation with the inflow drive mechanism; an input interface for manually or automatically receiving inputs of a type of joint for a surgery, a predetermined desired in-joint pressure value and a type of inflow cannula for use in the surgical pump system; an inflow pump motor measuring device for measuring revolutions per minute (RPM) of the motor to obtain a RPM value for the inflow pump motor; an inflow pump pressure sensor associated with the inflow drive mechanism for measuring a pump head pressure value P a pump control processor for receiving information including a type of joint for surgery, a predetermined desired in-joint pressure value, identification information for an inflow cannula, head pressure value P a pump memory device configured for storing pressure loss data for an inflow cannula, the pump control processor determining a 1 wherein the pump control processor executes an algorithm to calculate a pressure loss P wherein the pump control processor determines an in-joint pressure value P joint by applying the equation: and wherein the pump control processor provides at least pump drive signals to drive at least the inflow pump motor in order to maintain the predetermined desired joint pressure value.