Acoustic Swallow Detection for Premature Infant Feeding Maturity
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Solution Overview
Problem
Current methods for assessing feeding maturation in premature infants are subjective, invasive, or not clinically proven, leading to potential false results and inadequate monitoring of swallowing events, which can impact feeding effectiveness and infant health.
Innovation Solution
A method and system that measure acoustic responses and respiration patterns using a peak and valley model to determine feeding maturity by comparing extracted features against a trained data set, allowing for objective assessment of swallow events and respiratory information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If trial-and-error techniques or observational criteria are used to gauge feeding maturation, then the assessment can be performed without invasive procedures, but the results are subjective and lack objectivity
Solution Approach 1:
The patent replaces subjective observational criteria with an automated acoustic detection system that uses microphones and signal processing algorithms to objectively measure swallowing events. The mechanical/physical acoustic signals are transformed into digital data that can be analyzed programmatically, eliminating human subjectivity while maintaining non-invasiveness.
Solution Approach 2:
The patent introduces acoustic signals as an intermediary medium between the swallowing action and the assessment. Instead of directly observing swallowing (which is subjective), the system captures acoustic emissions during swallowing and uses these intermediate signals as objective proxies for feeding maturation evaluation.
2Measurement precision
If invasive pressure measurement methods are used to assess feeding, then objective measurement can be achieved, but the procedures become painful and impractical for regular monitoring
Solution Approach 1:
The patent substitutes invasive mechanical pressure measurement systems with non-invasive acoustic sensing. Instead of inserting pressure sensors into the infant's digestive tract, the system uses external microphones to capture acoustic emissions during feeding, achieving objective measurement without physical intrusion.
Solution Approach 2:
The patent uses acoustic emissions as an intermediary that indirectly measures swallowing mechanics without direct contact with the infant's internal structures. The acoustic signals serve as a safe proxy that correlates with swallowing function while avoiding the pain and discomfort of invasive procedures.
3Loss of information
If video fluoroscopic swallow studies with barium sulphate are used to evaluate swallowing, then detailed visualization of swallowing mechanism can be obtained, but the procedure involves radiation exposure and complex preparation
Solution Approach 1:
The patent replaces the complex video fluoroscopic imaging system with a simple acoustic sensing system. Instead of using X-ray imaging to visualize the swallowing mechanism, the system captures acoustic emissions that directly correlate with swallowing events, obtaining sufficient information without ionizing radiation.
Solution Approach 2:
The patent extracts only the essential information needed for feeding assessment (swallowing events and respiratory coordination) from the complex VFSS procedure. By focusing specifically on acoustic emissions during feeding, the system obtains the critical data needed while eliminating unnecessary radiation exposure and complex preparation requirements.
4Productivity
If subjective observational criteria are used for feeding assessment, then the monitoring process remains simple and quick, but false results occur and swallowing events are inadequately monitored
Solution Approach 1:
The patent enables the assessment system to automatically detect, analyze, and interpret swallowing events without requiring expert manual observation. The automated algorithm processes acoustic signals and identifies swallowing patterns independently, maintaining rapid assessment while improving reliability through consistent, objective criteria applied by the system itself rather than variable human judgment.
Solution Approach 2:
The patent implements automated feedback mechanisms where the system continuously monitors acoustic emissions, compares them against established patterns, and provides real-time assessment of feeding maturation. This continuous automated feedback loop ensures both speed (through automation) and reliability (through consistent objective criteria) in monitoring swallowing events.
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
Provides a reliable and objective means to assess feeding maturity in premature infants, reducing the risk of false results and improving monitoring of swallowing and breathing coordination, thereby enhancing feeding effectiveness and infant health outcomes.
Implementation Method 1
measuring the acoustic response from a baby during a swallow cycle to provide acoustic information
Implementation Method 2
measuring the respiration pattern of the baby during the swallow cycle using a peak and valley model to provide respiration information
Data Source
AI summary
A method for monitoring feeding maturation in premature babies, the method including measuring an acoustic response from a baby during a selected time period to provide acoustic information; comparing the measured acoustic response against a train data set to determine an indication of a swallow event; and measuring a respiration pattern of the baby during a swallow cycle using a peak and valley model to provide respiration data, where a feeding maturity of the baby is determinable in dependence on the swallow indication and respiration data.