Systems and methods for delivering therapeutic gas to patients
AssigneeInogen, Inc.
InventorsGeoffrey Frank Deane, Brenton Alan Taylor
Life of this patent
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Abstract
A system for delivering therapeutic breathing gas to patients is provided to deliver a variable bolus volume in response to the patient's breathing pattern. The system includes a gas source, a conserver between the gas source and the patient, a sensor which detects breaths by the patient and a controller which receives signals from the sensor and triggers delivery of gas boluses in accordance with predefined triggering parameters, with the controller determining the time elapsed since the last bolus was triggered and altering the triggering parameters as a function of the elapsed time.
Claims12
A system for delivering therapeutic breathing gas to a patient, comprising:
- a gas source;
- a conserver between the gas source and the patient;
- a sensor for detecting patient breath events and measuring the parameters of the breath events, said parameters including breath pressure level;
- processor and control elements for acquiring signals from the sensor and controlling the delivery of gas to the patient, wherein the system supports at least one mode of operation such that a threshold breath pressure level detected by the sensor, which causes the processor and control elements to deliver a volume of gas to the patient, may be user selectable such that the volume of gas is delivered to the patient when the patient's threshold breath pressure level is at the level selected by the user;
- and
- wherein the system provides a plurality of user selectable threshold pressure levels, said threshold pressure levels comprising a lower level adapted to trigger delivery of gas to the user when the user is asleep or in a state of inactivity such that the user's breath is shallower than normal.
A system for delivering therapeutic breathing gas to a patient, comprising:
- a gas source;
- a conserver between the gas source and the patient;
- a sensor for detecting patient breath events and measuring the parameters of the breath events such as breath pressure level;
- and
- processor and control elements for acquiring signals from the sensor and controlling the delivery of gas to the patient, wherein the system supports at least one auto-fire mode of operation such that the processor and control elements measure the time since the last breath detected by the sensor, and if no breath is detected after a predetermined time period and no gas is delivered to the patient in this predetermined time period, a volume of gas is delivered to the patient automatically.
An apparatus for delivering a series of boluses of gas to a patient, comprising:
- a gas source;
- a conserver between the gas source and the patient;
- a sensor which detects breaths by the patient;
- and
- a controller which receives signals from the sensor and triggers delivery of gas boluses in accordance with predefined triggering parameters, said controller determining the time elapsed since the last bolus was triggered, and altering the triggering parameters as a function of said elapsed time.
Dependencies are inferred from the claim text.