Sensors TRIZ Cases

An integrated ECG coupler adds removable electrodes through extension cables for configurable lead counts without signal interference.

Noise events before and after the detection window are counted to limit false arrhythmia detections and improve Positive Predictive Value.

See how dry electrodes, AC excitation, and DFT analysis address electrolysis and noise while measuring skin impedance or conductance in wearables.

Activity tracking and location beacons identify changing job roles, enabling tailored haptic alerts for safer lifting.

Separate conductive traces measure hydrogel impedance and establish a baseline, correcting physiological readings as chemistry changes during extended wear.

Mixed maternal-fetal PPG signals challenge fetal SpO2 measurement; a tagged-input neural network estimates saturation and confidence directly.

Dynamic sampling and resolution switch during key events to preserve vital-sign detail while limiting power use and data storage.

Four EEG electrodes embedded in eyeglass temples replace cumbersome multi-electrode setups for accurate, portable, long-term seizure monitoring.

Coaxial electrodes measure sub-epidermal moisture to flag tissue damage before visible pressure ulcers develop, supporting earlier clinical intervention.

An answer-time model estimates concentration depth during intellectual tasks, enabling targeted environmental adjustments that improve work efficiency.

An automatic lancet and vacuum cartridge collect physiological samples with less discomfort than conventional blood draws.

Whole-brain QEEG can obscure unilateral abnormalities; bilateral channels compare hemispheric indices for seizure and sedation monitoring.

Scout-image analysis detects reference structures, calculates subject offsets, and automates positioning for more efficient medical imaging.

An ear-canal electrode paired with a concha electrode enables differential EEG processing for continuous sleep monitoring with less obtrusive contact.

Separate mounting of the detector and volume coil simplifies maintenance while a shielding layer helps preserve signal integrity.

Electromyography and multiwavelength optical sensing are combined in one device for accurate, portable muscle-state assessment.

Movable electrodes maintain diagnostic-quality ECG contact during activity without adhesives, reducing skin irritation and clinician re-training.

Middle cerebral artery signal variation can distort AIF estimates; choroid plexus susceptibility sampling supports consistent absolute perfusion metrics.

Acoustic sonorheometry measures whole-blood clot formation and dissolution, while a GUI turns multiple indexes into quantitative guidance.

A single FPGA dynamically streams prioritized commands to MRI components, reducing controller complexity, bandwidth use, and memory demands.

An outer-edge cable route reduces hand binding while separated wrist and finger mounts improve comfort, contact stability, and measurement accuracy.

Screen-scraped console frames help remote experts track imaging examinations and alert local operators when scan status needs attention.

Dual thermo-hygro sensors and a fan measure helmet interior airflow, enabling compact head perspiration readings and whole-body estimation.

A high-reflectance emitter area directs detection light while a low-reflectance receiver area absorbs stray light in a compact device.

Flexible inserts position integrated audio outputs at the patient's ears, reducing headset hardware and easing RF head-coil setup.

See how independent UWB nodes align channel impulse responses using line-of-sight phase-noise estimation for fine-grain sensing.

Multichannel pilot tone data and recent excitation history improve MRI rigid-body tracking when subject motion is minimal.

A stimulation circuit verifies electrode contact before ECG sensing, helping wearable devices capture consistent physiological waveforms for non-medical users.

Existing UHF-ECG methods can lose source-distance information; broad-band processing separates nearby from distant ventricular activation.

Portable EEG records time-synchronized responses to image cues, turning ERP peaks into objective relapse-risk measures against baseline.

A sliding connector coordinates hollow-needle and stylet motion so sources stay accurately positioned during implantation.

Identity-frequency tags let FMCW radar isolate a subject’s heartbeat and breathing from nearby reflections in group settings.

Adaptive filtering removes recurrent noise while preserving biosignals, exposing residual activations after pulsed field ablation.

Independent movement of the ECG signal or grid aligns waveforms with square edges for easier, more precise interval measurement.

Two infrared sensors capture temperatures at separate probe positions, helping suppress errors in non-contact eardrum readings.

Gas sensing in the patient area triggers airflow changes when pathogens are detected, supporting air purity and patient comfort.

A measurement microphone and configurable data converter let one airflow sensor support inhaler, spirometer, peak-flow, and mouth-nasal modes.

Separated frequency bands and envelope differences help UHF-ECG distinguish nearby and distant ventricular activation sources for precise localization.

Red and infrared reflected-light ratios help wearable sensors reject false skin contact, filter movement noise, and reduce battery waste.

Dixon MRI separation uses preliminary and refined variable estimates to reduce echo-image needs while preserving accurate water-fat signal separation.

Second-derivative noise thresholds filter electrogram extrema to quantify fractionation and distinguish normal from abnormal cardiac tissue.

Different-wavelength signals reveal wearable orientation so physiological measurement parameters can adapt to signal variation.

An attachable sensor rail lets a dental sensor move along tooth mounts for repeatable, distance-true, multi-point measurements.

FMCW radar in a smartphone captures reflected signals to form a ballistocardiography waveform without specialized wearables.

Temperature and current shifts can alter laser pulse calibration; dynamic IRF tracking preserves blood oxygenation and neural activity measurements.

Permeable bodies absorb and deliver coupling solution to improve electrode contact, impedance consistency, and user comfort.

A side notch lets overmolded material lock the lancet needle in place, supporting shorter needles and consistent tip alignment.

Near-infrared spectroscopy and optical diffusion imaging identify poorly supplied flap regions, supporting precise trimming and artery selection without invasive nicking.

Multiple openings at different radial distances let electrodes detect moisture propagation stages and notify users about possible ostomy leaks.

One multi-antenna radar separates activity and vital-sign detection by target zone, replacing separate healthcare monitoring systems.