초록 ▼

A pressure support system and method of using same that includes a pressure generator adapted to provide a gas flow, a conduit coupled to the pressure generator to deliver a gas flow to a patient, an interface device coupled to the conduit to communicate the gas flow to an airway of the patient. An

A pressure support system and method of using same that includes a pressure generator adapted to provide a gas flow, a conduit coupled to the pressure generator to deliver a gas flow to a patient, an interface device coupled to the conduit to communicate the gas flow to an airway of the patient. An exhaust vent that provides a flow of exhaust gas to atmosphere is provided in the conduit or the interface device. A flow sensor detects a rate at which gas flows in the conduit and provides a first output indicative thereof, and a pressure sensor detects a pressure of gas at the patient and provides a second output indicative thereof. A control system receives the first and second outputs and determines whether a current flow of exhaust gas passing through the exhaust vent is below an alarm threshold based on the first and second outputs and provides a third output indicative of this determination.

대표청구항 ▼

1. A pressure support system comprising:a pressure generator adapted to provide a gas flow; a conduit operatively coupled to said pressure generator to deliver a gas flow to a patient; an interface device operatively coupled to said conduit to communicate a gas flow to an airway of a patient, wherei

1. A pressure support system comprising:a pressure generator adapted to provide a gas flow; a conduit operatively coupled to said pressure generator to deliver a gas flow to a patient; an interface device operatively coupled to said conduit to communicate a gas flow to an airway of a patient, wherein at least one of said conduit and said interface device includes an exhaust vent that provides a flow of exhaust gas to atmosphere from a respective one of said conduit and said interface device; flow sensing means for determining a rate at which gas flows in said conduit and for providing flow signal indicative thereof; pressure sensing means for determining a pressure of gas at a patient and for providing a pressure signal indicative thereof; and processing means, receiving said flow signal and said pressure signal, for determining whether a current flow of exhaust gas passing through said exhaust vent is below an alarm threshold based on said flow signal and said pressure signal and for providing an output indicative of said determination.