Auscultation Instruments TRIZ Cases
- In-Vehicle Voice Analysis for Respiratory Disease Detection
Driver voice recordings are analyzed over time and frequency to enable rapid respiratory disease detection inside a motor vehicle.
- Mobile Sleep Apnea Monitoring With Audio and Motion Sensing
Audio, accelerometer, and oxygen data enable low-complexity home monitoring of apnea, hypopnea, and sleep-position effects.
- Cable-Integrated Signal Processing for Portable Physiological Monitoring
A cable-integrated processing module filters physiological sensor data before display, preserving mobile device performance and battery life.
- Ear Canal Acoustic Sensing for Bruxism Detection
An earplug sensor aimed at the tympanic membrane captures grinding and clenching sounds for reliable mobile bruxism detection.
- Patient-Adaptive Medical Alarms to Reduce Emergency Alarm Fatigue
Context-aware medical alarms adjust thresholds and alert patterns to patient characteristics, reducing alarm fatigue at emergency scenes.
- Targeted Cough Detection Using Edge-Cloud User Profiling
Edge-cloud cough profiling separates a target user's cough from others while filtering sensitive sounds locally to improve privacy and efficiency.
- Targeted Cough Detection With Multi-Stage User Verification
A two-stage edge-cloud detector separates ambient coughs and verifies the target user, improving cough analysis accuracy while protecting privacy.
- Acoustic Sitting Posture Sensing With Distributed RF Nodes
Distributed speakers and microphones track hip and head position through sound propagation, enabling non-obtrusive posture alerts.
- Neural Audio Analysis for Automatic Breathing Cycle Counting
Neural audio processing removes manual counting during exercises, helping users focus while adapting rhythm to their breathing.
- Awake OSA Diagnosis via Acoustic Signal Frequency Analysis
Acoustic signal analysis identifies upper airway abnormalities during awake testing, resolving the trade-off between diagnostic accuracy and patient comfort.
- Resonant Acoustic Sensor Heart Sound Monitoring
Vibrating an acoustic sensor at its mechanical resonance frequency to detect heart sounds with high sensitivity.
- Bed Monitoring System Using Multi-Sensor Fusion for Noninvasive Vital Sign Tracking
A bed monitoring system integrates load, image, audio, and temperature detectors to track subject vital signs without physical contact.
- Dual-Sense Spirometer with CNN for Lung Pathology Severity
Convolutional neural networks process dual respiratory signals to overcome limited information loss in conventional single-modality systems.
- Acoustic Sensor Discriminating Cardiac and Respiratory Conditions
An implantable acoustic sensor detects heart and respiration sounds to differentiate physiological conditions.
- EIT Sensor Device Spatial Orientation Compensation
A sensor device for electrical impedance tomography integrates spatial orientation data to adjust measured impedance distributions.
- Computer-Aided Lung Disease Diagnosis Using Digital Signal Processing
Digital signal processing analyzes lung sound features to identify diseases, overcoming the limited frequency range of human hearing.
- Stethoscope Transducer Assembly for Acoustic Signal Digitization
A transducer-loudspeaker assembly hooks to traditional stethoscope eartips to capture and digitize acoustic signals.
- Apnea Detection via Acoustic Signal Noise Analysis
An apnea episode determination device analyzes acoustic signals to distinguish breathing sounds from background noise during sleep.
- Apnea Analysis System Differentiating Obstructive and Central Apnea
An apnea analysis system combines photoplethysmographic and breath signals to classify respiratory events.
- Portable Breath Monitoring Device with Pulse Oximetry
A wearable device merges acoustic breath sensors and pulse oximetry for continuous cardiopulmonary monitoring.
- Respiratory Phase Detection via Acoustic Pause Intervals
Analyzes pause intervals in tracheal acoustic signals to determine respiratory phases, improving detection accuracy when noise contaminates low-amplitude data.
- Sleep State Detection via Reflection Signals and Breathing Sounds
Apparatus identifies sleep posture via reflection signals and breathing sounds, reducing data processing burden while maintaining detection accuracy.
- Non-contact Cardiopulmonary Monitoring via Thermal Imaging and Audio
Replacing mechanical sensors with thermal imaging and acoustic detection eliminates patient discomfort while maintaining cardiopulmonary measurement precision.
- Baby Breathing Sensor with Rubber Mediator for Erosion Control
A piezoelectric baby breathing sensor uses a rubber mediating element to prevent surface erosion while maintaining detection accuracy.
- REM Sleep Detection Using Poincare Plot Analysis of Inter-Beat Intervals
A processing system extracts inter-beat intervals from non-ECG signals and calculates Poincare parameters to determine REM sleep stages.
- Fatigue Monitoring Using Circadian Rhythm Oscillator
A circadian rhythm oscillator calculates fatigue values by adjusting for sleep recovery and inertia to track user energy states.
- Breath Sound Analysis Using Frequency-Shifted Reference Spectra
A biological sound analyzing apparatus shifts reference spectra based on acquired frequency information to calculate the ratio of mixed breath sounds.
- Sublingual Sensor for Non-Invasive Cardio-Respiratory Monitoring
A sublingual sensor unit detects light from the tongue to generate signals for processing cardio-respiratory parameters.
- Warped Linear Prediction for Sleep Disordered Breathing Audio Segmentation
A Warped Linear Prediction system generates an excitation signal to segment respiratory cycles, separating disordered breathing episodes from background noise.
- Cough Detection via Acoustic Energy Distribution Analysis
Automated cough detection system analyzes acoustic energy distribution in the frequency-time domain using convolutional neural networks.
- Acoustic Sensor Transfer Function for Noise-Resistant Physiological Monitoring
A sound sensor uses a pre-calculated transfer function to equate body-contact measurements with distance-based clinical criteria.
- Sensor-Based Pregnancy Movement Reproduction System
A sensor device records fetal movement data for later playback on external output devices.
- Non-contact Microphone Breathing Analysis via Expiratory Sound Derivation
A non-contact microphone captures airflow sounds to derive unmeasurable inspiration time through algorithmic processing.
- Piezoelectric Cough Detection Using Frequency Amplitude Thresholds
A piezoelectric sensor analyzes chest vibration frequency amplitudes to classify acoustic events.
- Acoustic Sensor Compression Module for Respiratory Monitoring
A compression module modifies acoustic sensor output signals to prevent saturation in downstream preamplifiers.
- Breath Sound Analysis for Sleep Apnea Diagnosis
Automated breath sound analysis distinguishes obstructive and central sleep apnea using acoustic features.
- Autonomous Medical Device Failure Detection System
An autonomous failure detection system monitors medical devices for unprogrammed shut-offs and electromagnetic interference.
- Smartphone Breath Sound Analysis for Respiratory Distress Detection
A smartphone microphone captures respiratory sound data to determine respiration rate and tidal volume through local software analysis.
- Dyspnea Assessment System Integrating Sensor Data and Clinical Questionnaires
Computer system combines respiration rate sensors, activity monitors, and clinical questionnaires to determine a dyspnea value.
- Infant SIDS Monitoring System for Environmental Risk Detection
A wearable infant monitoring system detects sleep position, temperature, and carbon dioxide levels to identify modifiable environmental risk factors.
- Conductive Cloth Sensor for Auscultation Training
A force sensor uses conductive fabric and insulative mesh to detect pressure distribution, resolving accuracy limits in flexible auscultation training systems.