Auto-titration bi-level pressure support system and method of using same
First Claim
1. A bi-level auto-titration pressure support system comprising:
- a pressure generating system adapted to generate a flow of breathing gas at an inspiratory positive airway pressure (IPAP) during inspiration and at an expiratory positive airway pressure (EPAP) during expiration;
a patient circuit having a first end adapted to be coupled to the pressure generating system and a second end adapted to be coupled to an airway of a patient;
a monitoring system associated with the patient circuit or the pressure generating system and adapted to measure a parameter indicative of a pressure at a patient'"'"'s airway, a flow of gas in such a patient'"'"'s airway, or both and to output a pressure signal indicative thereof, a flow signal indicative thereof, respectively, or both; and
a controller coupled to the monitoring system and the pressure generating system, and adapted to control the IPAP and the EPAP independently based on the output of the monitoring system, wherein the controller is programmed to operate according to one control layer in a set of prioritized control layers, wherein each control layer in the set of prioritized control layers competes for control of the pressure generating system with the other control layers, and wherein each control layer implements a unique pressure control process for controlling the IPAP, the EPAP, or both.
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Accused Products
Abstract
A bi-level pressure support system and method of treating disordered breathing that optimizes the pressure delivered to the patient during inspiration and expiration to treat the disordered breathing while minimizing the delivered pressure for patient comfort. The pressure generating system generates a flow of breathing gas at an inspiratory positive airway pressure (IPAP) during inspiration and at an expiratory positive airway pressure (EPAP) during expirations. A controller monitor at least one of the following conditions: (1) snoring, (2) apneas, (3) hypopneas, or (4) a big leak in the pressure support system and adjusts the IPAP and the EPAP independently based on the occurrence of any one of these conditions.
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Citations
11 Claims
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1. A bi-level auto-titration pressure support system comprising:
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a pressure generating system adapted to generate a flow of breathing gas at an inspiratory positive airway pressure (IPAP) during inspiration and at an expiratory positive airway pressure (EPAP) during expiration; a patient circuit having a first end adapted to be coupled to the pressure generating system and a second end adapted to be coupled to an airway of a patient; a monitoring system associated with the patient circuit or the pressure generating system and adapted to measure a parameter indicative of a pressure at a patient'"'"'s airway, a flow of gas in such a patient'"'"'s airway, or both and to output a pressure signal indicative thereof, a flow signal indicative thereof, respectively, or both; and a controller coupled to the monitoring system and the pressure generating system, and adapted to control the IPAP and the EPAP independently based on the output of the monitoring system, wherein the controller is programmed to operate according to one control layer in a set of prioritized control layers, wherein each control layer in the set of prioritized control layers competes for control of the pressure generating system with the other control layers, and wherein each control layer implements a unique pressure control process for controlling the IPAP, the EPAP, or both. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of providing pressure support to a patient, comprising:
- generate a flow of breathing gas at an inspiratory positive airway pressure (IPAP) during inspiration and at an expiratory positive airway pressure (EPAP) during expiration;
monitoring a pressure, a flow, or both of the flow of breathing gas and outputting a pressure signal, a flow signal indicative thereof, respectively, or both;
selecting a control layer from a set of prioritized control layers based on the pressure signal, the flow signal, or both; and
controlling the IPAP, the EPAP, or both according to a pressure control technique unique to the selected pressure control layer. - View Dependent Claims (9, 10, 11)
- generate a flow of breathing gas at an inspiratory positive airway pressure (IPAP) during inspiration and at an expiratory positive airway pressure (EPAP) during expiration;
Specification