Diagnostics Using Light TRIZ Cases

Multispectral imaging detects subsurface oxy-hemoglobin changes to reveal pre-emergent pimples, preventing scarring and reducing psychological impact.

Finger-mounted sensor detects pulse wave velocity to estimate blood pressure, resolving the trade-off between measurement precision and device portability.

Cross-polarized diffuse reflectance imaging quantifies melanin and erythema indices to guide pulsed dye laser treatment parameters.

Inverse beamforming reconstructs photoacoustic images from post-beamformed data, avoiding custom hardware costs.

Inclined side plates orient light-emitting units to direct reflected rays toward a photodetector, improving light collection efficiency in wearable devices.

A remote physiological measurement system uses wavelength-specific illumination and optical sensing to capture reflected light signals from a subject.

Segmented fiber bundle captures in vivo corneocyte data without complex confocal microscope equipment, enabling accurate size measurement.

An optical measurement system detects misalignment and drives an actuator to reposition the cartridge, ensuring accurate inspection results.

Organic semiconductor layers replace rigid inorganic elements to resolve mechanical strength versus flexibility trade-offs while reducing power consumption.

An integrated MEMS tunable mirror in a VCSEL accelerates wavelength sweeping to overcome slow image acquisition times in swept source OCT systems.

Miniature laser device projects subcutaneous vein patterns onto skin using differential infrared absorption for precise vascular access.

Crossed polarizers in a biosignal sensor reduce noise from user motion by stabilizing the DC component, improving biometric accuracy.

A finger cuff uses a micro-laser and detector to measure plethysmograph signals via volume clamp control.

Dynamic sealing assembly prevents nozzle dry-out by locking against the nozzle when idle, resolving reliability versus accessibility trade-offs.

Conductive opaque splits embedded in transparent media prevent cross-talk and noise between light emitters and detectors.

Ultra-wideband radar tracks lung tumors during radiation therapy, replacing ionizing imaging with non-invasive electromagnetic detection.

A signal processing system modulates evoked biological signals with auto-correlated carrier sequences to reconstruct clean data.

Segmented organic light emitting diode arrays resolve space constraints and light scattering to improve physiological measurement precision.

Nesting imaging optics and laser delivery in a 22-gauge catheter reduces amniotic membrane rupture risk while enabling precise placental vessel coagulation.

A digital camera captures skin images to determine collagen thickness by processing infrared and color channel data.

An optical probe uses spatial slope computation to isolate deep layer light absorption from superficial tissue interference.

Micro-perforated opaque layers enable discreet bio-sensing through portable electronic device housings without compromising sleek aesthetics.

Automated optical detection replaces subjective manual assessment by capturing finger color changes with a mobile camera to improve measurement precision.

A wearable device tracks abdominal orientation and physiological parameters to estimate clinical risk.

Infrared light penetrates the silicon substrate in a back-side-illumination pulse oximetry sensor, eliminating red light absorption and visible emission issues.

A pulse wave sensor and processor detect characteristic points to estimate bio-information.

Segmented inner and outer electrodes enable automatic impedance measurement through finger contact, eliminating the need for two-handed operation.

Temperature sensors measure surface gradients to detect on-wrist states, reducing power consumption from continuous optical sampling.

A blood pressure ratio calculation device uses Fourier transform on relative waveforms to derive absolute values.

Single handheld unit merges orange and red LED arrays for deep vein detection with white exam light, eliminating separate equipment needs.

An energy field controller automatically selects frequency and amplitude to activate target particles bound to invasive agents.

Segmenting the imaging chamber isolates light interference while a movable supporter enables real-time observation of animal responses to stimuli.

Continuous sensor monitoring detects early infection signs during peritoneal dialysis, preventing hospitalizations.

A pinhole mirror separates forward and backward second harmonic generation signals within a single epi-detection scan.

Modular microscope systems employ semi-kinematic coupling to connect device bodies to baseplates, enabling reproducible alignment without tools.

An integrated cuff sensor measures arterial volume changes directly, eliminating systematic errors from indirect cuff compliance calculations.

A medical device uses laser excitation to detect and destroy individual tumor cells in the bloodstream.

Applicator uses reflection edge detection to selectively deposit treatment composition on specific skin regions.

A capnometer uses a reflector to fold the mid-IR optical path between emitter and detector.

A medical device combines capillary refill time measurement with pulse oximetry using an integrated actuator and light detector.

An ingestible device uses radial illumination and spectral detection to measure light intensity for gastrointestinal diagnosis.

Near-infrared luminescent dyes embedded in biocompatible hydrogels resolve photobleaching and poor tissue integration issues.

A domical sensor housing with surrounding emitters prevents external light interference and fluid accumulation for reliable leak detection.

An automatic intensity control mechanism prevents user dazzle and maintains dark sensitivity during tissue examination.

An intermediary light guide filters crosstalk and stray light noise from the sensor path, improving measurement precision without adding processing overhead.

Difference imaging of stimulated brain tissue increases contrast, resolving low-resolution risks from contact-based electrophysiological methods.

A compact optical sensor system with integrated temperature sensing and data processing.

Mapping layered biological structures separates optical information to determine specific material content within each distinct tissue depth.