Stethoscope TRIZ Cases

See how an infant transfer device integrates heart rate sensing to enable continuous monitoring

See how an infant transfer device integrates heart rate sensing and secure handling to reduce m

An adjustable torso belt adds ECG, temperature, and acoustic sensing during toilet use while maintaining sensor contact for reliable long-term trends.

Motion-triggered sleep control and wireless audio streaming help an electronic stethoscope cut idle power use while separating auscultation from ambient noise.

Integrated ECG, stethoscope, and ultrasound sensing guides probe placement to cut setup time and improve echocardiogram quality.

Shaped convergent-divergent nozzles convert fluid heat and turbulence into sound, or dissipate sound into heat, with lower turbulent loss.

A cable-tensioned link structure lets a surgical stabilizer arm change length, follow contoured paths, and lock rigidly for stable tissue positioning.

Software filtering on a mobile device captures bodily sounds with lower noise and preserves key frequencies for more accurate auscultation.

A heated chest patch combines ECG, PPG, IPG, and motion sensing to improve cuffless BP and SpO2 monitoring with fewer artifacts.

Chest vibrations drive electrolyte flow across electrodes, enabling continuous high-sensitivity heart and respiration monitoring without skin-tone limits.

A dual-sensor layout with viscoelastic damping suppresses low- and high-frequency external noise for clearer biological sound detection.

Multiple sensing modes fuse heart sounds, thoracic impedance, ECG, and breathing data to cut false positives in chronic cardiac monitoring.

Periodic multi-sensor scheduling and abnormality-based recording improve continuous patient monitoring while limiting power use and false alerts.

Dual microphones and noise cancellation let one stethoscope capture body sounds and clinician dictation without separate recording tools.

A dual-microphone digital stethoscope captures body sounds and clinician dictation in separate modes, reducing extra hardware and privacy risk.

External electrode ECG metrics improve CRT candidacy screening and brady pacing tuning without invasive monitoring.

Combining ECG, pulse oximetry, and 3D accelerometry enables home detection of sleep-disordered breathing and clearer CSR vs OSA classification.

Branched vent holes equalize pressure in a sealed wheeze sensor, suppressing microphone noise while preserving sound insulation.

A wireless multi-sensor wearable compares patient baselines to detect deterioration, falls, and other changes while reducing cables and review burden.

A lockable modular connector lets clinicians pair a personal headset with disposable sound sensors, improving hygiene and use under PPE.

Multimodal sensing combines eye movement, HRV, and brainwave analysis to quantify cyber sickness early during HMD driving experiences.

Acoustic and piezo-electric resonance sensing enables non-invasive home lung monitoring without manual sounds or specialized clinical equipment.

A multi-channel MEMS accelerometer in the electrode assembly captures heart sounds and respiration while reducing skin irritation from continuous wear.

Continuous internal sensing with acoustic, pressure, motion, temperature, and ECG signals helps detect subtle heart failure changes earlier.

A flexible skin-mounted microphone and separate processing circuit reduce air-gap noise while enabling continuous cardiopulmonary monitoring.

Convolution-based respiratory sound analysis enables real-time cough counting, abnormality detection, and event forecasting with secure data cataloging.

Flexible PCB-linked sensors in an infant garment combine temperature, ECG, pulse oximetry, and audio monitoring with detachable data transmission.

A palm-to-chest electrode layout extends the ECG sensing vector to improve p-wave visibility while keeping cardiac monitoring portable and easy to use.

Semi-supervised matrix factorization separates weak heartbeat vibrations from reflected millimeter-wave signals for precise non-contact monitoring.

Drum-shaped audible-range sensors and signal processing raise stethoscope sensitivity and separate physiological sounds from noise.

Pattern recognition and inverse-noise filtering suppress unsteady noise while preserving speech quality and improving heart sound interpretation.

Disposable wireless patches combine acoustic sensing, vital sign capture, and AI analysis for continuous monitoring without caregiver presence.

Correlation between main and sub microphone signals triggers noise cancellation only when ambient noise interferes, preserving clarity and power.

A wrist-worn piezoelectric heart sound sensor captures cardiac acoustics non-invasively to support reliable heart failure monitoring.

Multiple acoustic sensing elements and adaptive filtering separate body sounds from noise, while pressure equalization stabilizes output on skin.

During dialysis, PTT and EDA sensing detect abnormal blood pressure and volume changes without cuff-based blood flow disruption.

Optical pulse sensing and heart sound detection in an ear-worn form factor enable accurate blood pressure monitoring without cuffs or invasive methods.

Forced-breath audio on a mobile device is converted into flow-rate data to estimate visceral fat non-invasively and at lower cost.

An auricle-inserted sensor combines acoustic, optical, and electrode sensing to assess sleep state without masks or multiple body-mounted devices.

A chest microphone and wireless headphones preserve true heart sounds for hands-free listening during meditation, relaxation, or exercise.

Triggered by syncope symptoms or sensed physiological changes, blood pressure is captured at critical moments without continuous monitoring.

By separating pause-phase breathing from active lung sounds, this case reduces false abnormality detection in heart failure monitoring.

By identifying the breathing pause phase and excluding it from analysis, this case improves lung sound abnormality detection for heart failure.

By prioritizing auscultation positions with higher abnormal sound frequency, this case helps reduce missed heart failure exacerbation during incomplete exams.

Abnormal-sound frequency from prior observations sets the auscultation order, helping operators avoid missed heart failure exacerbation during interrupted exams.

Patient-specific abnormal sound frequency sets auscultation priority, reducing missed heart failure exacerbation during incomplete exams.

By separating pause, inspiratory, and expiratory phases, this case improves lung sound abnormality detection for heart failure monitoring.

Chest sounds are captured, digitized, and analyzed with AI to reduce subjective interpretation and speed differential diagnosis.

Heart sounds combined with posture, respiration, activity, and oxygen signals help detect early pericardial fluid buildup or lead protrusion.

Correlating cardiac signals with motion- or acoustic-based pulse waves improves subpulse detection and helps distinguish PEA from pseudo-PEA.

Capacitive ECG combined with phonocardiogram and ballistocardiogram sensing enables accurate heart monitoring in companion animals without hair removal or restraint.

FFT-based harmonic ratio analysis classifies benign vs pathologic heart murmurs quickly, reducing reliance on specialist auscultation.

Sensor-triggered activation turns the electronic stethoscope on during patient contact and off when idle to extend battery life.

Acoustic sensors capture heart and lung sounds while a computer extracts scale factors to calculate real-time cardiovascular data.

A cuffless blood pressure apparatus uses finger-applied applanation pressure guided by real-time processing to detect Korotkoff sounds.

Frequency band segmentation and dynamic threshold adjustments resolve noise interference in breath segment identification.

Focused ultrasound energy shrinks collagen fibers in the SMAS layer, avoiding damage to overlying fat and skin.

A sleep management device modulates display output to execute wake routines based on detected events.