GAS RECIRCULATION SYSTEM AND METHOD

摘要

Gas recirculation systems for use in endoscopic surgical procedures including a gas recirculation pump are disclosed. The gas recirculation pump may work in conjunction with an insufflator used to inflate a patient's peritoneal cavity during surgery. The gas recirculation system may recirculate a high flow rate of gas from and to the patient while filtering particulate matter out of the gas and while maintaining an adequate moisture content in the gas. The gas recirculation pump may include a disposable pump cartridge releasably connected to a pump motor. A controller may detect a fault or safety condition in the gas recirculation system based on the load placed on the pump motor.

主权项

1. A gas recirculation system for use in an endoscopic surgical procedure, the system comprising:
a pump comprising:
a motor; anda pump cartridge coupled to the motor, wherein the pump cartridge includes a gas input connection and a gas output connection, wherein the pump cartridge is detachable from the motor, and wherein the pump cartridge is sealed such that a gas within the pump cartridge cannot contact the motor; a first tube in fluid communication with the gas input connection, wherein the first tube is configured to be connectable to surgical equipment that is insertable into a peritoneal cavity; and a second tube in fluid communication with the gas output connection, wherein the second tube is configured to be connectable to surgical equipment that is insertable into a peritoneal cavity; wherein the pump is configured to draw gas into the gas input connection from a peritoneal cavity through the first tube and to discharge gas out of the gas output connection and into a peritoneal cavity through the second tube.