Stethoscope TRIZ Cases
- Heart Sound Detection Using Multi-Axis Accelerometer Signals
A composite heart sound signal system uses multi-axis accelerometer data to detect mechanical vibrations directly from the heart surface.
- Integrated Telemedicine Device Merging Vital Sign Sensors
A compact handheld monitor merges pulse oximetry, otoscopy, and ECG sensors into one unit for real-time data transmission.
- Noninvasive Blood Pressure Estimation via Heart Sound Oscillations
A noninvasive apparatus extracts pulmonic subcomponents from chest wall heart sounds to estimate blood pressure.
- Stethoscope Cleaning Assembly Self-Activation
A stethoscope cleaning assembly uses a mechanical activating assembly to dispense fluid onto an applicator during head passage.
- Adaptive Endocardial Acceleration Signal Averaging
Variable cycle counts adjust signal precision and response speed for active implantable medical devices.
- Auxiliary Blood Pressure Device Synchronizing Audio and Image Signals
An auxiliary device synchronizes pulse sound signals with pressure image data to determine blood pressure values.
- Multi-channel Digital Stethoscopy Signal Separation
Relocating complex filtering to the reception terminal reduces transmission unit complexity while extracting precise cardiac and lung sound data.
- Lumped-Parameter Heart Model for Realistic PCG Signal Generation
A lumped-parameter heart model generates pressure and flow signals to create realistic phonocardiogram audio.