Stethoscope TRIZ Cases
- Optical Interferometric Scanning Detector for Cardiovascular Monitoring
Handheld optical detector replaces bulky ultrasound with interferometric scanning to assess heart function in noisy environments.
- Abdominal Acoustic Sensor for Continuous GI Monitoring
Disposable abdominal acoustic sensor detects gastrointestinal sounds to replace invasive diagnostic tests and manual palpation.
- Sensor Array Stethoscope for Heart Valve Monitoring
Conformable patch with pressure sensor array and control system processes signals to detect heart valve activity.
- Cough Detection via PCA Feature Extraction
Audio cough detection uses principal component analysis to extract diagnostic features from sound signals.
- Heart Sound Acquisition Device with Adjustable Biasing Force
A heart sound acquisition device uses a movable sensor and biasing portion to maintain consistent contact pressure.
- Cardiac Signal Restoration for STEMI Detection
Restoring filtered cardiac signals enables accurate ST-segment detection despite noise reduction trade-offs.
- Chest Patch Sensor with Heating Element for PPG Perfusion
A chest-worn patch sensor integrates ECG, IPG, PPG, and PCG waveforms to measure vital signs.
- Wearable Auscultation Device Elastomer Acoustic Coupling
Elastomer acoustic coupling transmits body sounds while isolating sensors from movement noise and skin friction.
- Acoustic and Pressure Sensor Pulse Transit Time Measurement
Acoustic sensor detects aortic valve closure to mark pulse transit time, resolving ECG mechanical activity inaccuracies.
- Inductance Plethysmography for Non-Invasive Aortic Flow
Thoracic inductance coils detect volume variations to calculate subdiaphragmatic aortic flow without surgical intervention.
- Sepsis Monitor Using Multi-Parameter Noninvasive Sensors
A sepsis monitor uses noninvasive sensors to measure physiological parameters for early warning.
- Acetabular Cup Installation via Vibratory Impact and Force Sensing
Controlled vibratory impactors with integrated sensors resolve the trade-off between placement precision and surgical time in hip replacement procedures.
- Wheezing Detection Using Peak Height and Width Ratio
A wheezing detection apparatus analyzes breathing sound signals by converting them into frequency spectra to identify respiratory conditions.
- Ergonomic Stethoscope Chestpiece Grip Design
Indented gripping surfaces on the chestpiece resolve grip comfort trade-offs by enabling seamless transitions between positions.
- Implantable Device Orientation Calibration via Acceleration
Automatic calibration circuits resolve manual timing delays by applying transformation matrices to accelerometer signals for accurate therapy delivery.
- Acoustic Sensor Deformable Attachment for Patient Coupling
Deformable attachment sub-assembly secures acoustic sensors to patient skin using flexible materials and adhesive layers.
- Accelerometer Cardiac Detector for High-Frequency Heart Sound Analysis
A center-loaded accelerometer-based detector captures high-frequency heart sounds with minimal chest load.
- Cardiac Therapy Evaluation Using Staged Parameter Optimization
Staged evaluation of pacing parameters reduces clinical time while optimizing cardiac resynchronization therapy.
- Stethoscope Cleaning Assembly with Integrated Fluid Dispenser
An integrated cleaning assembly activates a fluid dispenser via the stethoscope head's passage, resolving contamination risks and reducing cleaning time.
- Digital Stethoscope Respiratory Abnormality Detection
Convolutional neural networks analyze auditory signals in a digital stethoscope to forecast respiratory events and manage patient privacy via cloud services.