Adaptive PAP Pressure Ramp Controller for Sleep Onset
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Solution Overview
Problem
Current respiratory disorder treatment devices lack personalized and adaptive pressure settings, which can lead to discomfort and inefficiency in treating sleep-disordered breathing, as they do not account for individual sleep onset parameters.
Innovation Solution
A medical device with a controller that collects historic sleep onset parameters to determine a pre-sleep limit and sets a pressure profile with ramping sub-therapeutic pressures to gradually increase to therapeutic levels, ensuring comfortable and effective treatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed pressure settings are used in respiratory treatment devices, then device complexity is reduced, but treatment effectiveness and patient comfort deteriorate due to lack of personalization
Solution Approach 1:
The system performs preliminary actions by collecting sleep onset parameters during initial treatment sessions and using this data to pre-calculate personalized ramp profiles before subsequent treatments. This allows the device to adapt pressure settings without requiring complex real-time adjustments during each treatment session.
Solution Approach 2:
The system implements feedback by continuously monitoring sleep onset parameters during treatment and using this information to adjust and refine personalized ramp profiles over time. The controller modifies pressure delivery based on detected sleep onset, creating a closed-loop adaptive system that improves treatment effectiveness.
2Ease of operation
If gradual ramping pressure profiles are implemented, then patient comfort improves during sleep onset, but treatment duration increases
Solution Approach 1:
The system applies dynamics by implementing variable ramp profiles that adjust the rate of pressure increase based on detected sleep onset parameters. Once sleep onset is detected, the system dynamically transitions from gradual ramping to therapeutic pressure delivery, optimizing both comfort and treatment efficiency.
Solution Approach 2:
The gradual ramping phase serves as a preliminary action that prepares the patient for therapeutic pressure delivery. By delivering sub-therapeutic pressures initially and then transitioning to full therapeutic pressure upon detecting sleep onset, the system minimizes overall treatment time while maintaining comfort during the transition period.
3Reliability
If personalized pressure profiles are created based on sleep onset parameters, then treatment effectiveness improves, but device complexity and data processing requirements increase
Solution Approach 1:
The system implements self-service by automatically collecting sleep onset parameters, analyzing the data, and generating personalized ramp profiles without requiring external intervention. The device uses its own operational data to create and refine treatment protocols, reducing the need for manual configuration and complex external processing systems.
Solution Approach 2:
The system performs preliminary data collection and analysis during initial treatment sessions to establish baseline sleep onset parameters. This preliminary processing enables the creation of personalized profiles that can be used in subsequent treatments, reducing the computational burden during active therapy delivery.
Data Source
AI summary
Methods and/or apparatus automate setting of a pressure ramp to permit pressure to gradually arrive at a treatment pressure such as in the initial or pre-sleep stages of use of a respiratory therapy pressure device for treatment of a respiratory disorder during sleep (e.g., sleep disordered breathing). In an example, apparatus for treating a respiratory disorder may include a breathable gas pressure generating device. The apparatus may include a controller, including a processor(s). The controller may be configured to collect historic sleep onset parameter(s) concerning timing of a patient falling asleep. The apparatus may determine, based on the historic sleep onset parameter(s), a pre-sleep limit. The apparatus may determine a pre-sleep profile of pressure versus time having a duration spanning the pre-sleep limit and having a plurality of ramping sub-therapeutic pressures. The apparatus may control, upon initiation of treatment, setting of the pressure generating device according to the pre-sleep profile.