Sensors TRIZ Cases

A dynamic heart rate variation detection system adjusts optical sampling rates to identify arrhythmia patterns.

Dixon pulse sequence estimates B0 inhomogeneity and B1 phase maps to calculate corrected voxel sizes.

A microfluidic device uses vertical channels and microheaters to access interstitial fluid through thermal ablation of dry skin cells.

Continuous basis projection Kalman filtering updates sparse Fourier modes to adapt to time-varying systems, resolving standard Kalman limitations.

Removable mu-metal layers attenuate static magnetic fields by 100 dB, resolving image quality degradation in complex electromagnetic environments.

A forehead band and eye mask detect head movement angles to calculate average differences for proprioception assessment.

Automatic slice selection in magnetic resonance systems simplifies continuous table feed workflows.

Dynamic local quality illumination reduces subject anxiety while preventing excessive brightness discomfort in MRI gantries.

A patient interface with a touch sensor over the thumb crease automatically counts finger taps via a control module.

Forward piston movement creates sub-pressure in the syringe rear portion, maintaining skin contact during blood sampling.

Automated EEG analysis detects evoked responses to assess conscious awareness, reducing misdiagnosis rates in coma and vegetative state patients.

Distributed electrodes capture local brain activity to generate topographic color maps, resolving noise from artifacts like eye blinks and muscle activity.

Current source feed mode suppresses crosstalk between neighboring antennas while maintaining high receive sensitivity for magnetic resonance tomography.

System detects electrode misplacement by analyzing signal relationships and applies Fruchterman-Reingold optimization to correct placement.

Segmented chest and hand patches resolve the contradiction between miniaturized device size and complete 12-channel measurement precision.

Switched impedance networks apply varying loads to electrode arrays, overcoming skull filtering effects to improve spatial and temporal resolution.

A universal control system generates reference profiles from multiple test subjects to enable proportional movement across multiple degrees of freedom.

A biological fluid collection device merges a puncturing element and removable cartridge to stabilize blood samples upon entry.

A blood pool agent suppresses vascular signals in MRI scans to isolate lymphatic channels.

Scheduling diffusion gradients prevents continuous high-power operation of MRI gradient amplifiers, maintaining stability and extending component lifespan.

Segmenting k-space regions reduces scanning time for magnetic resonance images containing metallic implants.

A measurement signal amplifier charges its energy store during diagnostically irrelevant EMG segments to maintain power availability.

Dynamic force adjustment minimizes motion artifacts during exercise, ensuring reliable physiological measurements.

A medical analyzer applies mixed model inversions to quantify brain stiffness using magnetic resonance elastography and diffusion tensor imaging data.

The apparatus isolates hemoglobin concentration data from blood vessel volume fluctuations to enable rapid noninvasive metabolism assessment with high accuracy.

Section-specific shim parameter sets adjust shim channels during data acquisition, compensating for local field distortions that cause signal losses.

Automated ECG signal classification uses inflection point detection to categorize cardiac segments and identify Long QT syndrome patterns.

Tapered elastic member accommodates varying cap shapes to prevent blood contact and simplify handling.

Optical system separates cardiac arterial pulses from jugular venous signals to determine cerebral tissue oxygenation without skull penetration.

Piezoelectric fans generate airflow to cool electronic components, resolving waste heat accumulation in compact magnetic resonance device control units.

External and internal sensors compare temperatures to halt processing during rapid changes, ensuring accurate glucose readings.

A wearable band with inner and outer electrodes detects cardiovascular signals to simulate 12-lead EKG data.

A neural analysis system merges amplitude-integrated and range-electroencephalography signals to determine spectral edge frequency and assess brain maturation.

A radio frequency health monitoring system uses wearable devices to transmit and receive signals for processing glucose levels.

Frequency encoding gradient pulses shift NMR signal peaks to narrow the dynamic range of received signals.

Stabilizing sheet restricts electrode movement along X and Y axes while allowing Z-axis flexibility in patient-worn sensor assemblies.

A movable optical unit shifts relative to an electrode contact surface to enable simultaneous ECG and PPG measurements.

Self-calibrating MRI pulse sequences measure T1 relaxation times to generate quantitative cerebral blood flow maps.

Programmable projector illuminates specific body zones identified by thermal imaging to enable non-contact pulse measurement.

A nested coil assembly transmits magnetic particle signals from an inner detection element to an outer receiver via series current flow.

Decompose multi-channel PPG signals using independent component analysis to isolate vital physiological data from motion noise.

A balance assessment plate uses pressure sensors to measure vertical forces and calculate stability parameters for home monitoring.

Capacitance extrapolation eliminates plasma resistance dependency, reducing salt variability errors in haematocrit detection.

A flight attendant evaluation system calculates passenger stress indicators from biological sensor data to assess service quality.

An external magnet and small RF coil enable non-invasive hepatic fat quantification, bypassing invasive biopsy procedures.

Headless mode keeps infusion pumps running during wireless link failures, reducing human error in medication administration.

A combined gradient and spin echo pulse sequence acquires multiple subject parameter maps simultaneously within a single imaging protocol.

A finger-worn medical assembly collects prostate surface data for volume calculation.