Abstract: A connector for connecting an oxygen delivery device to a patient interface. The connector includes a housing with a first lumen for delivering oxygen and a second lumen to allow pressure to be measured. A third optional lumen may allow for gas sampling. The housing surrounding the first and second lumen has a portion that includes encoding for determining the type of patient interface being used, as well as a depth indicator sensor.

Abstract: A system for determining total flow output from a flow generator, and/or tidal volume of gas inhaled by a patient includes: a flow generator for connection to a patient interface; a patient pressure sensor to measure patient pressure at the patient interface and an oxygen input line with an oxygen input line sensor, both in communication with a controller. The oxygen input line conveys oxygen from an oxygen source to the flow generator, and has an oxygen flow valve for controlling the flow of oxygen from the oxygen source to the flow generator. The processor is programmed with one or more algorithms to determine the flow output for the flow generator based on a particular patient pressure and oxygen input line flow. Leak flow is subtracted from the flow generator output to determine patient flow, which is integrated to calculate patient tidal volume of gas inhaled.

Abstract: A connector for connecting an oxygen delivery device to a patient interface. The connector includes a housing with a first lumen for delivering oxygen and a second lumen to allow pressure to be measured. A third optional lumen may allow for gas sampling. The housing surrounding the first and second lumen has a portion that includes encoding for determining the type of patient interface being used, as well as a depth indicator sensor.

Abstract: An adaptor for generating flow includes an adaptor housing body. The distal end of the body has an oxygen inlet that extends extending into an interior of a distal air intake portion. The oxygen inlet has a nozzle with at least two apertures for directing oxygen into an interior of a distal air intake portion. The distal air intake portion includes at least one air inlet port to allow air to be drawn into the interior of the distal air intake portion, and a flow-resisting media covering at least a portion of the at least one air inlet port.

Abstract: A system for detecting manual ventilation and selectively delivering a high flow of oxygen. The system comprises a source of compressed oxygen coupled to a first lumen of a nasal cannula, with an oxygen flow control valve coupled to a processor to control the flow of oxygen to the nasal cannula. A second lumen of the nasal cannula is in connection with a pressure sensor and the pressure sensor in connection with the processor. The processor may receive the pressure values and be programmed to determine when manual ventilation has occurred, and send a signal to the oxygen flow control valve to send a high flow of oxygen in response to manual ventilation.

Abstract: A system and method for reducing the risk of fire in an oxygen delivery system. The system may include an oxygen delivery device with a controller in communication with a flow control valve to control a flow of oxygen through a tubing from an oxygen source to a patient interface. The controller may be programmed to close the flow control valve for a predetermined time period at a predetermined time interval to cause a periodic oxygen pause, the periodic oxygen pause to remove oxygen that may serve as an oxidizer when a fire is present inside at least one of the patient interface and the tubing.

Abstract: A connector for connecting an oxygen delivery device to a patient interface. The connector includes a housing with a first lumen for delivering oxygen and a second lumen to allow pressure to be measured. A third optional lumen may allow for gas sampling. The housing surrounding the first and second lumen has a portion that includes encoding for determining the type of patient interface being used, as well as a depth indicator sensor.

Abstract: A connector for connecting an oxygen delivery device to a patient interface. The connector includes a housing with a first lumen for delivering oxygen and a second lumen to allow pressure to be measured. A third optional lumen may allow for gas sampling. The housing surrounding the first and second lumen has a portion that includes encoding for determining the type of patient interface being used, as well as a depth indicator sensor.

Abstract: A system for detecting manual ventilation and selectively delivering a high flow of oxygen. The system comprises a source of compressed oxygen coupled to a first lumen of a nasal cannula, with an oxygen flow control valve coupled to a processor to control the flow of oxygen to the nasal cannula. A second lumen of the nasal cannula is in connection with a pressure sensor and the pressure sensor in connection with the processor. The processor may receive the pressure values and be programmed to determine when manual ventilation has occurred, and send a signal to the oxygen flow control valve to send a high flow of oxygen in response to manual ventilation.