Automatic Rise Time Adjustment in Bi-Level Pressure Support
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Solution Overview
Problem
Current bi-level positive airway pressure support systems require manual setup and frequent follow-up visits, increasing setup time and costs for home use, as they do not automatically adjust the transition time from expiratory to inspiratory pressure phases based on individual patient breathing patterns.
Innovation Solution
A method and system that automatically adjust the rise time from expiratory to inspiratory positive airway pressure by determining the patient's inspiratory time, either over a set number of cycles or a time period, using a predetermined constant or a look-up table, to optimize pressure support delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual setup and adjustment procedures are used for bi-level pressure support systems, then the system can be configured to provide appropriate therapy, but the setup time and follow-up visit frequency increase
Solution Approach 1:
The system automatically determines patient inspiratory time and calculates optimal rise time values without requiring manual configuration by healthcare providers. The device self-adjusts the rise time parameter based on measured breathing patterns, eliminating the need for manual setup and reducing follow-up visits while maintaining therapy appropriateness
Solution Approach 2:
The system continuously monitors patient inspiratory time and uses this feedback to automatically adjust the rise time parameter. By measuring the patient's actual breathing pattern and comparing it to optimal values, the system dynamically configures the therapy parameters to ensure appropriateness while minimizing setup requirements
2Reliability
If manual setup procedures are required for bi-level pressure support systems, then therapy can be configured, but the cost of home use increases due to frequent follow-up visits
Solution Approach 1:
The system performs automatic configuration of rise time parameters based on patient breathing patterns, eliminating the need for expensive manual setup and follow-up visits. This self-configuring capability maintains proper therapy configuration while dramatically reducing the cost of home use by eliminating recurring professional service requirements
3Ease of operation
If fixed rise time settings are used in bi-level pressure support systems, then the system is simple to operate, but it does not adapt to individual patient breathing patterns
Solution Approach 1:
The system dynamically adjusts the rise time parameter based on real-time measurement of patient inspiratory time. Rather than using a fixed setting, the system continuously adapts the configuration to match the individual patient's breathing pattern, maintaining ease of operation while achieving full adaptability through automatic parameter adjustment
Data Source
AI summary
A method of providing pressure support to a patient that includes determining a measure associated with an inspiratory time of the patient during therapy, delivering a flow of breathing gas to the patient at an inspiratory positive airway pressure (IPAP) level during at least a portion of an inspiratory phase of the patient, delivering the flow of breathing gas to the patient at an expiratory positive airway pressure (EPAP) level that is less than the IPAP level during at least a portion of an expiratory phase of the patient, and automatically setting a rise time associated with a transition from the EPAP level to the IPAP level based on the measure associated with the inspiratory time of the patient. Also provided is a pressure support system adapted to perform the method.