Abstract: A system is provided for delivering gas to a patient during a medical procedure. The system comprises a heater arranged to heat at least one of the gas and a humidification liquid. The system comprises a controller arranged to control the system according to a first mode during delivery of a first flow rate of gas and a second mode during delivery of a second flow rate of gas. The controller monitors an electrical characteristic of the heater to select the mode of operation and/or to determine an operating state of the system.

Abstract: A system is provided for delivering gas to a patient during a medical procedure. The system comprises a heater arranged to heat at least one of the gas and a humidification liquid. The system comprises a controller arranged to control the system according to a first mode during delivery of a first flow rate of gas and a second mode during delivery of a second flow rate of gas. The controller monitors an electrical characteristic of the heater to select the mode of operation and/or to determine an operating state of the system.

Abstract: In one embodiment, a filter assembly for use in an insufflation system is described. The filter assembly comprises: a filter medium operative to filter medical gases; a housing comprising an inlet, an outlet and the filter medium, the housing defining a gases flow path through the filter medium between the inlet and the outlet; and at least one heating element being positioned in the housing and being configured to heat the filter medium; and wherein, the at least one heating element is spaced apart from the filter medium and from an inner surface of the housing.

Abstract: In one embodiment, a Luer lock connector for use in an insufflation system is described. The Luer lock connector includes: a body comprising a first end, a second end and an interior region; the interior region defining a gases flow passageway allowing insufflation gases to flow through the body from the first end to the second end; and the body being configured to be coupled to a tubing arrangement at the first end and to a patient interface at the second end; wherein, the second end is configured to be coupled to a patient interface fitting of the patient interface, the second end being further configured to seal around an outer surface of the patient interface fitting when the Luer lock connector is coupled to the patient interface; and wherein, the second end forms a seal with the outer surface of the patient interface fitting when the second end and the patient interface fitting are coupled.

Abstract: A system is provided for delivering gas to a patient during a medical procedure. The system comprises a heater arranged to heat at least one of the gas and a humidification liquid. The system comprises a controller arranged to control the system according to a first mode during delivery of a first flow rate of gas and a second mode during delivery of a second flow rate of gas. The controller monitors an electrical characteristic of the heater to select the mode of operation and/or to determine an operating state of the system.