Patent ID: 6220244
Filing Date: 2001-04-24
Classification: A61M

Abstract:
An oxygen conserving delivery system operative to regulate a flow of oxygen during an inspiration event of a respiratory cycle, and comprising:a valve assembly including a valve for receiving oxygen, and having an output port;an inspiration sensor assembly coupled at a first port to the output port of the valve assembly, having a second port;a signal generator for generating a signal on a sensor output line of the inspiration sensor assembly when an inspiration event is detected by the inspiration sensor assembly;a single respiration tube coupled to the second port of the inspiration sensor assembly;a microcontroller for regulating operation of the oxygen conserving delivery system, wherein the microcontroller is coupled to the valve assembly via a start drive line which when actuated provides sufficient power to the valve assembly to initially open the valve, and coupled to the valve assembly via a sustain drive line which when actuated provides less power to the valve assembly suffering only to maintain the valve in an open position, and wherein the microcontroller receives input from the sensor output line when the inspiration event is detected;a power source for providing power to the oxygen conserving delivery system; anda means for regulating a respiration rate of oxygen supplied by the oxygen conserving delivery system between no delivery of oxygen and a maximum delivery rate of oxygen.