Diagnostics Using Spectroscopy TRIZ Cases

See how a multispectral camera embedded in a toilet seat captures body and excretion data to en

Ultra-short surface-emitting laser pulses cut skirt interference, improving deep tissue signal separation in time-domain NIRS.

Controlled skin compression tunes optical path length to balance scattering and absorption for more stable non-invasive biomarker sensing.

Hemodynamic brain markers combined with perceptual load help detect distracting mind wandering without EEG motion sensitivity.

Near-infrared PPG amplitudes at ethanol- and water-sensitive wavelengths enable compact, continuous noninvasive BAC monitoring.

Near-infrared tissue spectroscopy measures driver alcohol non-invasively, avoiding blood draws and breath-test variability for vehicle control.

Single-cell ICP-MS measures sperm metal levels and signal kinetics to distinguish infertile sperm with higher diagnostic accuracy.

An optical filter blocks light above 50° incidence to suppress skin-surface and ambient reflections, improving physiological signal accuracy.

By shaping and amplifying pulse patterns only at regions of interest, this microscope setup boosts neuron imaging speed without added optical complexity.

Peak-current sensing from transmitted infrared pulses enables damage mapping while a silicon-TiO2 self-biased junction avoids complex NIR detector fabrication.

A flexible NIR imaging cap conforms to uneven skull surfaces and blocks ambient light for faster intracranial hematoma detection.

Chromatic dispersion replaces mechanical tuning in an OCT laser cavity, enabling faster wavelength sweeping for high-resolution imaging.

Longer-wavelength DCS improves deep tissue blood flow measurement by boosting signal strength and reducing extra-cerebral contamination.

A resistor-network common-mode feedback circuit stabilizes biopotential amplifiers despite electrode impedance variation, enabling stronger noise cancellation.

Adjustable sensor angles, positions, and skin distance help a wearable ring stay aligned and improve biometric monitoring accuracy.

Spectral decomposition and adaptive weighting suppress motion-distorted rPPG components to improve robust extraction of heart rate and oxygen saturation.

Offset waveguides and beam redirection enable simultaneous imaging and spectroscopy in a small intravascular probe with high-fidelity tissue characterization.

Real-time power calibration and reflected-light lobe scanning enable portable brain hemorrhage detection without CT infrastructure.

Polarized light and filter angle detection enable non-invasive blood analyte measurement with simpler optics and lower cost than spectroscopy.

Terahertz and autofluorescence imaging with AI enables real-time breast cancer margin detection during surgery, reducing delays and repeat excisions.

Laser A-band spectroscopy with a compact multi-pass cell enables 100 Hz breath oxygen tracking with 10 ms response and high precision.

Separating transmitted and scattered near-infrared signals helps reconstruct clearer breast images and detect blood-rich cancerous masses.

Separating treatment and sensor light in a double-clad endoscopic fiber improves monitoring accuracy, flexibility, and disposable sterility.

Two self-calibrated optical measurement sets use different source-detector separations to isolate deep tissue signals from superficial contamination.

Elastic deployable elements part hair after insertion, improving scalp light delivery and near-infrared measurement accuracy without electrical actuation.

A rotating multi-detector monochromator scans UV to SWIR light for intra-heartbeat tissue analysis with deeper penetration and better molecular identification.

Controlled nighttime light and sensor feedback limit dark adaptation hypoxia, helping slow diabetic retinopathy progression.

Dual-wavelength optical sensing separates water-dependent and reference absorption to enable accurate, real-time hydration monitoring in wearables.

Equal-angle waveguide mounting lets a reusable body and disposable tip align quickly, cutting optical tissue probe assembly time and cost.

Real-time spectral-spatial imaging and automated assessment help guide diagnosis and therapy while reducing complexity and delay.

Selected infrared wavelengths quantify amide-to-phosphate absorption ratios to map tissue composition and support tumour grading.

An encoder-decoder maps non-neural physiological signals to neural-like features, improving cognitive state prediction without invasive EEG sensors.

Spectral flashing detection separates laser-induced emissions from response light to preserve endoscopic image clarity and spectroscopic accuracy.

SNR-based simulated absorbance spectra identify optimal wavelength combinations to improve bio-information accuracy without longer measurement time.

Sensors inside the aspiration catheter detect clot entry and clearance, letting suction adapt in real time to limit blood loss.

EIS, Kalman filtering, and redundant electrodes cut glucose sensor stabilization time and reduce finger-stick calibration needs.

Optical tartar detection guides pulsed ion generation to dissolve deposits at home while limiting enamel damage and discomfort.

Multi-wavelength EMR spectroscopy measures analytes in blood and interstitial fluid to assess intoxication without invasive blood sampling.

A handheld probe combines optical spectroscopy and indentation to improve non-invasive tissue diagnosis with less bias and trauma.

A 550-600 nm suppression filter and red-green signal separation reduce motion artifacts in non-contact pulse measurement.

A sublingual fluorescence sensor measures tracer decay to assess GFR quickly and accurately without blood or urine sampling.

A center-blocking module filters out shallow-layer reflections so deeper tissue signals can be measured with higher sensitivity and signal-to-noise ratio.

A reference detector tracks IRF drift in real time, improving tissue measurement accuracy without separate calibration pauses.

A correction profile compensates LED spectral cross-talk in photodiode reflectance sensing, improving hydration and fat estimation accuracy.

Real-time optical, impedance, and ultrasound sensing at the catheter tip confirms clot presence, guiding suction to cut blood loss during thrombectomy.

Optical spectroscopy distinguishes RBC-rich and fibrin-rich clots before thrombectomy, helping choose the right device on the first pass.

A deep neural network predicts EEG responses to select and personalize sleep sounds, improving regulation without extensive subject testing.

Integrated imaging, lighting, and interchangeable tools improve microsurgical visibility while reducing movement limits and tool changes.

Low-coherence CW interferometry resolves photon pathlengths to measure deeper tissue blood flow with better signal quality and lower system complexity.

Dual-wavelength reflected-light imaging estimates dentine thickness over the pulp in real time, avoiding X-rays and unintended exposure.

Adaptive embodied cognitive tasks combine physical movement and mental challenges to improve attention, memory, and task-switching.

Quantitative hyperspectral fluorescence and reflectance imaging corrects tissue absorption and scattering to track deformable tumors during surgery.

Optical coherence tomography measures tissue birefringence changes to resolve inconsistent lesion depth assessment in cardiac ablation.

A measurement body with a curved contact surface stabilizes optical coupling for analyte detection.