Stethoscope TRIZ Cases
- Bio-signal Quality Assessment via Periodic Signal Extraction
A bio-signal quality assessment apparatus extracts periodic signals from raw data to determine a signal quality index based on similarity and variability.
- Digital Stethoscope Signal Processing for Noisy Environments
A digital stethoscope uses pre-amplifiers and anti-aliasing filters to convert acoustic vibrations into clean electrical signals.
- Compact Earpiece Physiological Monitor with Wireless Sensor Integration
Integrated earpiece sensors collect physiological and environmental data via wireless networks, resolving bulk and cost bottlenecks in traditional monitoring.
- Phonocardiogram Signal Processing Apparatus for Diagnostic Accuracy
A phonocardiogram signal processing apparatus analyzes captured heart sounds to determine analysis results and confidence values.
- De-noising Abnormal Lung Sounds with Neural Networks
Neural networks and wavelet transforms de-noise lung sounds to detect respiratory abnormalities without radiation exposure from CT scans.
- Audible Ultrasound Device Tissue Density Detection
Sonic converter shifts ultrasound reflections to audible frequencies, enabling immediate detection of tissue density changes without radiation exposure.
- Multimodal Hearing Prosthesis Biomarker Adaptation
Hearing prosthesis captures audio environments and identifies acoustic biomarkers to adjust stimulation modes.
- Implantable Heart Sound Detector for S3 Monitoring
An implantable sensor detects third heart sounds using dynamic thresholds within cardiac cycles.
- Medical Attachment Device Tracking System for Realistic Auscultation Training
A medical attachment device tracking system uses reflectors and light emitters to determine stethoscope location relative to a subject.
- Chest Audio Monitoring via Signal Decomposition
Decomposing mixed chest audio signals separates noise from physiological data, resolving low signal-to-noise ratio issues in unobtrusive monitoring.
- Stethoscope Chestpiece Contact Detection Sensors
Sensors integrated into the stethoscope chestpiece detect body contact to enable remote diagnosis.
- Dual-Filtered Hearing Protector with Dynamic Acoustic Chamber
A dual-filtered hearing protector uses an angular acoustic chamber to shape frequency response and attenuate loud noises automatically.
- Multi-Stage Physiological Monitor Calibration
Multi-stage physiological monitor retrieves calibration data from sensor assembly components to determine patient parameters.
- Stethoscope Chestpiece With Integrated Light And Timepiece
Integrated light source and timepiece enable simultaneous auscultation and vital sign monitoring without tool removal, reducing cross-contamination risk.