Multimodal surgical gas delivery system for laparoscopic surgical procedures

A multimodal surgical gas delivery system configured for use with one or more trocars providing access into a patient's body cavity, the system comprising:

• a control unit having a pump with a supply conduit and a return conduit, an insufflation subunit with an insufflation conduit, and a diverting valve having a plurality of defined operating positions and connected to each of the supply conduit, the return conduit and the insufflation conduit for controlling gas flow through the gas delivery system based upon a user selected operating mode, and wherein the control unit has multiple user selectable operating modes including:
• i) a recirculation mode wherein the diverting valve is positioned to facilitate the delivery of pressurized gas from the pump, through the supply conduit, to a trocar of the one or more trocars, to create and maintain a pressure barrier therein which inhibits a loss of insufflation gas from the patient's body cavity through the trocar of the one or more trocars, wherein depressurized gas from the pressure barrier created in the trocar returns to the pump through the return conduit;
• ii) a smoke evacuation mode wherein the diverting valve is positioned to facilitate the removal of smoke from the insufflation gas within the patient's body cavity to improve visibility within the patient's body cavity;
• and
• iii) an insufflation mode wherein the diverting valve is positioned to facilitate the delivery of insufflation gas into the patient's body cavity from the insufflation subunit, through the insufflation conduit, to create and maintain a pneumoperitoneum,
• wherein the control unit is configured to permit a user to select an operating mode either individually or combined with another operating mode.