Diagnostics Using Light TRIZ Cases

A wearable device measures respiration rates to provide real-time biofeedback during meditation exercises.

Near-infrared spectroscopy detects brain edema by measuring tissue water content through diffusely reflected light signals.

Hyperspectral imaging systems use Hadamard transform coding to capture four-dimensional fluorescence data simultaneously.

A hypovolemia monitor detects respiration-induced plethysmograph variations to generate a blood volume parameter.

Electromagnetic radiation sensing detects probe cover presence and insertion depth, preventing cross-contamination from reused covers.

Cross-polarized illumination reveals masked epithelial changes, resolving diagnostic inaccuracies caused by surface pigmentation and blood flow.

Retinal auto-fluorescence intensity determines oxygen saturation levels, rejecting reflected light contamination.

Photoplethysmography systems determine fluid responsiveness through amplitude and frequency modulation ratios, bypassing arterial line requirements.

A biological information measurement device uses a high saturation charge image sensor to capture light from living tissue.

Autocorrelation analysis of scattered light determines blood flow speed without requiring prior anatomical knowledge or geometric assumptions.

Mathematical model calculates 19 biological parameters from skin spectra, replacing time-consuming separate tests with precise quantitative analysis.

Dynamic light emitting element selection reduces power consumption while correcting motion artifacts to enhance biometric signal reliability.

An optical applicator uses detector fibers to collect fluorescence light from photosensitized tissue and generate digital spatial images.

A magneto-optical spectroscopic technique detects haemozoin using polarized light and magnetic field modulation.

A wearable electronic device determines hydration levels using bioelectric impedance spectroscopy and optical sensors embedded in a flexible band.

A medical observation system adjusts laser light intensity based on probe insertion state to ensure operator safety.

Gimballing the treatment head on a stable gantry resolves mechanical stability versus angle range trade-offs for non-coplanar delivery.

A surgical display system applies configurable overlay patterns to identify areas of interest on medical images.

An enzyme-coated transdermal patch replaces invasive mechanical sampling with biochemical conversion, enabling reliable non-invasive health monitoring.

Multi-wavelength sensors measure DC reflectance intensity to monitor organ perfusion, eliminating motion sensitivity and low perfusion errors.

Optimized HOMO-LUMO energy levels in the luminescent layer suppress visible light noise, enhancing bioinstrumentation sensing reliability.

Iterative spectral unmixing isolates fluorescent probe signals from tissue background noise in biological imaging systems.

Adjusting light quantity ratios between wavelength bands improves blood vessel visibility while suppressing color noise and gradation collapse artifacts.

An acousto-optic modulator steers laser beams electronically to enable high-speed depth scanning without mechanical components.

An acousto-optic system uses ultrasound to tag photons, recovering spatial resolution despite strong light attenuation.

Segmented pixel and sensor regions minimize leakage currents for accurate fingerprint sensing.

Portable near-infrared spectroscopy detects hematomas via optical density differences, enabling rapid triage where CT scanners are unavailable.

A wearable device uses a distance sensor unit to determine user proximity before activating the biometric sensor for data collection.

A handheld transillumination device uses forward and upward LEDs to project light through translucent covers for subcutaneous structure visualization.

A foldable electronic device estimates bio-information by analyzing contact images captured through its dual image sensors.

Optical recognition of the eardrum position eliminates mechanical insertion pressure, resolving the trade-off between measurement stability and user discomfort.

A method applies segmented electromagnetic energy inputs to resonate specific molecular structures for precise bond manipulation.

Electronic pulse control replaces manual dials in a medical illuminator, enabling seamless switching between cross and parallel polarization modes.

Segmenting electronic boards from the probe head eliminates heat interference, while bundling optical fibers reduces physical obstruction during measurement.

Dynamic light selection across a lattice array adapts to varying finger attitudes, resolving the trade-off between wide acceptance range and device complexity.

A pulse wave sensor detects cough events by analyzing systolic and diastolic amplitude variations in physiological signals.

A fluorescence concentrator converts incident light into longer wavelengths to direct emission toward a detector.

An optical palpation device replaces subjective manual examination with objective strain measurement using a pressure-sensitive film and light detection.

A light-to-frequency conversion device transforms optical signals into alternating frequency data.

An optical isolator ring filters ambient light and motion artifacts around sensors, enabling accurate tissue oxygenation measurements during surgery.

A deformable physiological sensor pad conforms to delicate skin surfaces using a multi-layered flexcircuit assembly and hydrocolloid adhesive.

Optical detection replaces invasive blood draws to monitor cancer antigens, eliminating facility visits and improving patient compliance.

A noninvasive temperature determination method uses two discrete light wavelengths flanking an absorption maximum to calculate a ratio-based value.

An adaptive controller adjusts amplifier gain and light source driving signals to maintain optimal photoplethysmography signal levels.

Alternating light source and photodetector modes enable non-invasive bio-signal detection.

Multi-position illumination corrects tissue heterogeneity errors to improve 3D light source representation accuracy.

Optical probe system measures tissue oxygen via phosphorescence quenching, avoiding blood vessel insertion and clot formation.

Transparent member maintains fixed distance between display and biometric sensor while filter prevents foreign substance contamination.

Concentric waveguides separate OCT and CSLO signals to resolve registration errors while maintaining high signal-to-noise ratios.

A surgical tool features a distal marker for precise position detection during eye procedures.