Positional Sleep-Disordered Breathing Detection for Adaptive Therapy
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Solution Overview
Problem
Individuals with sleep-related and respiratory disorders, such as obstructive sleep apnea, often experience symptoms that are exacerbated by specific sleeping positions, leading to discomfort and non-compliance with respiratory therapy systems, and there is a need to detect these disorders accurately and adjust treatment plans accordingly.
Innovation Solution
A system and method for determining positional sleep disordered breathing (pSDB) status by analyzing airflow and sensor data to identify time periods of arousal and respiratory events, allowing for the detection of pSDB and adjusting therapy settings based on body position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If respiratory therapy systems are used to treat sleep disordered breathing, then treatment effectiveness is improved, but user comfort and compliance deteriorate due to discomfort and difficulty of use
Solution Approach 1:
The patent segments the treatment approach by identifying positional-specific respiratory events and applying position-targeted therapy. The system divides sleep periods into position segments (supine, lateral, prone) and applies different therapy parameters to each segment, making treatment more comfortable and effective by addressing only the positions that cause problems.
Solution Approach 2:
The patent changes therapy parameters (pressure levels, timing) based on detected body position and positional respiratory events. The system dynamically adjusts CPAP or BiPAP parameters according to the user's position and detected events, optimizing comfort and effectiveness without requiring full continuous high-pressure therapy.
2Reliability
If continuous respiratory therapy is applied to treat sleep apnea, then breathing support is improved, but user acceptance deteriorates due to expense, aesthetics, and perceived lack of benefit
Solution Approach 1:
The patent applies partial therapy by targeting only the specific time periods when positional respiratory events occur rather than continuous therapy throughout the night. This reduces overall therapy exposure while maintaining effectiveness during critical periods, improving user acceptance while preserving breathing support benefits.
Solution Approach 2:
The system uses feedback from detected positional respiratory events and body position data to dynamically adjust therapy delivery. The therapy parameters are modified based on real-time detection of events in specific positions, creating a responsive system that adapts to user needs and improves acceptance through personalized treatment.
3Measurement precision
If positional sleep disordered breathing is not accurately detected, then treatment precision deteriorates, but therapy complexity increases when attempting to address all sleep disordered breathing cases
Solution Approach 1:
The patent applies local quality analysis by focusing detection and therapy on specific positional segments rather than treating all sleep periods uniformly. The system identifies and treats only the positions and time periods where positional respiratory events occur, improving detection precision for pSDB without requiring complex analysis of entire sleep episodes.
Data Source
AI summary
A method and system for determining a positional sleep disordered breathing (pSDB) status associated with a respiratory device user is disclosed. Airflow data associated with the user is received. The airflow data is analyzed to identify a first time period of suspected arousal and a second time period of suspected arousal. A first time section between the identified first time period and the identified second time period is determined. The airflow data associated with the determined first time section is analyzed to identify (i) an indication of one or more respiratory events and/or (ii) an indication of one or more therapy events. Based at least in part on the (i) identified indication of one or more respiratory events and/or (ii) identified indication of one or more therapy events, the pSDB status of the user is determined, where the pSDB status is indicative of whether or not the user has pSDB.