Sensors TRIZ Cases

Invariant functions isolate non-pulsatile components from multi-wavelength light signals to enable accurate oxygen saturation estimation.

A matte black coating on MRI walls absorbs infrared reflections, eliminating spurious glare that degrades image quality during patient vital sign monitoring.

A cardiac mapping system transforms electrogram signals into the wavelet domain to compute QRS activity duration for precise tissue assessment.

Multi-layered lead assembly integrates conductive thread and shield layers into garments to connect electrodes securely.

Multi-scale power spectrum decomposition identifies sharp transitions in RF coil signals to determine spatial position.

Single unpackaged semiconductor die integrates sensor, processing circuit, and antenna within a contact lens to eliminate bulky discrete components.

Segmented magnet control calculates compensated pulses to cancel stray fields, enabling simultaneous independent imaging across multiple MRI areas.

Segmenting training data into latent and current streams reduces memory requirements on mobile devices, enabling accurate injury warnings offline.

A functional postural training machine uses load cells and dynamic posture detection to monitor user body segments and center of pressure during exercise.

Automated eye tracking monitors physiological signals to detect medical distress, replacing subjective visual cues with objective real-time analysis.

Linking impaired k-space data to reconstructed echoes corrects movement artifacts, eliminating re-recording delays and preserving diagnostic quality.

Sensors measure brain magnetic field intensity to classify learning difficulties, resolving diagnosis precision limits in educational resource allocation.

Dynamic flip angle adjustment suppresses background tissue signals while reducing specific absorption rate and artifacts in magnetic resonance angiography.

Collapsible electrode assemblies dispense conductive gel to maintain stable electrical contact, reducing pressure on sensitive skin during extended wear.

A vital information display device generates waveform data and calculates profile factors like rising angles and velocities for medical monitoring.

A single camera tracks head markers through a transparent dewar to resolve positional accuracy without depth errors from multiple views.

A passive microwave sensor retrieves Doppler information from ambient Wi-Fi signals using a low noise amplifier and mixer.

Optical contact detection units verify sensor placement on oral tissue, resolving insufficient contact issues that degrade moisture measurement accuracy.

A wearable bracelet integrates pulse oximetry, GPS tracking, and a locking mechanism to secure continuous vital sign monitoring for addiction care.

A planar X-ray image analysis method extracts structural and textural features from regions of interest to estimate bone mineral density.

A portable pupillometer captures pupillary light reflex images to determine concussion probability using demographic data.

A device measures skin capacitance to detect ketosis and monitor fat metabolism non-invasively.

Multi-parameter Bloch simulation generates absolute myelin fraction maps from MRI relaxation data.

A visualization system modulates color luminance and saturation to indicate electrophysiological data quality levels on cardiac chamber maps.

A wireless bipolar stimulation probe delivers monophasic pulses via two tip electrodes to stimulate nerve tissue without a return needle.

A variably positioned cine sub-sequence determines optimal black-blood inversion time parameters within a Time-SLIP MRI acquisition protocol.

A computer-assisted detection system identifies and measures septal defects using gated MRI data registered against a heart atlas.

A handheld glucose-insulin data management unit measures blood glucose concentration values and recommends basal insulin dose adjustments.

Automated evoked potential detection system processes electrical stimuli to monitor nerve function without expert supervision.

Curved prongs secure the nose sensor to the nasal septum, resolving discomfort and mobility limits of finger clip monitors.

A disposable heart rate indicator uses electrodes and a processor to drive a light signal emitting head for visual feedback.

A medical lookup patch uses a machine-readable code to direct devices toward personalized recovery information.

Wearable oximetry system corrects inaccurate readings by detecting body movement and applying reference values from stable posture periods.

Scaling filter history and coefficients according to dynamic gain and power changes eliminates artifacts that degrade heart rate and oxygen saturation accuracy.

A wrist-worn optical vital signs sensor combines a photoplethysmographic sensor with a force transducer to estimate blood pressure.