Respiratory Interface Wear Detection via Acoustic Reflection Analysis
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Solution Overview
Problem
Respiratory therapy systems face challenges in determining the remaining useful life of user interfaces, leading to discomfort and inaccurate therapy due to wear and tear, which can cause users to discontinue treatment.
Innovation Solution
A method and system that analyze acoustic data from acoustic reflections to identify physical features of the user interface, comparing them to reference features to determine the remaining useful life, using a control system with processors and machine-readable instructions to implement this analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If user interface is used continuously over time, then therapy can be provided to user, but user interface wears out causing discomfort and inaccurate therapy
Solution Approach 1:
The system performs preliminary assessment of the user interface condition by analyzing acoustic reflections before therapy degradation becomes significant. Acoustic sensors continuously monitor structural changes in the mask, cushion, or connector, and the system predicts remaining useful life to schedule replacement before therapy accuracy is compromised, thus maintaining reliable therapy delivery throughout the intended service life.
2Measurement precision
If user interface is monitored for wear, then remaining useful life can be determined, but system complexity increases
Solution Approach 1:
The patent replaces complex mechanical inspection systems with acoustic sensing technology. Instead of using mechanical sensors or visual inspection systems to detect wear, the system uses acoustic reflections to non-contactly assess structural changes in the user interface components. This substitution maintains high measurement precision for wear detection while significantly reducing system complexity.
3Measurement precision
If acoustic analysis is used to detect physical features, then remaining useful life can be determined accurately, but data processing complexity increases
Solution Approach 1:
The system creates acoustic signatures or templates representing the physical features of new user interface components. During operation, measured acoustic reflections are compared against these reference copies to identify wear patterns and determine remaining useful life. This copying approach enables accurate physical feature detection while simplifying data processing through pattern matching rather than complex analytical computations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate determination of the remaining useful life of user interfaces, optimizing therapy delivery and reducing user discomfort, thereby improving treatment adherence.
Implementation Method 1
Acoustic data associated with an acoustic reflection of an acoustic signal is received. The acoustic reflection is indicative of a portion of a structural shape of the interface.
Data Source
AI summary
According to some implementations of the present disclosure, a method for determining a remaining useful life of an interface of a respiratory therapy system is disclosed. Acoustic data associated with an acoustic reflection of an acoustic signal is received. The acoustic reflection is indicative of a portion of a structural shape of the interface. The received acoustic data is analyzed to identify a physical feature of the portion of the structural shape of the interface. The physical feature is compared to a reference feature. Based at least in part on the comparison, the remaining useful life of the interface is determined.