An elastic sheet tensions a piezoelectric film within non-elastic belt members, resolving the trade-off between detection sensitivity and device volume.
Controlled sinewave indicator gas delivery measures cardiopulmonary parameters without rebreathing bags.
A portable device uses a temperature algorithm to actuate a T-valve for selective deep lung air collection.
A respiration-dependent heartbeat model specifies trigger time-points using concurrent ECG and respiratory signals.
A multi-axis accelerometer detects heart rate by analyzing acceleration signal peaks within wearable devices.
A biometric analysis system correlates agent physiological data with empathy scores to improve performance routing.
Fusing PPG, airflow, and capnometry signals resolves monitoring complexity while ensuring detection accuracy.
A portable breath alcohol detection device captures facial images to verify the user's identity before and after analysis.
A respiration signal model extracts distance, score, and area characteristic values to determine the respiration phase.
An asymmetric D-shaped mouthpiece opening prevents air leakage by mirroring natural lip contours, ensuring accurate respiratory measurements.
A biological monitoring system uses multiple bed load detectors to capture force signals and calculate subject center of gravity position.
Quadrature receiver cross-references in-phase and quadrature-phase outputs to recover target movement frequencies directly in the time domain.
A portable device projects a gas detector from its body during calls to sense exhalation.
Segmented housing and one-way valves isolate the heated sensor from the user, preventing heat transfer hazards while ensuring accurate acetone detection.
A respiratory stimulus apparatus generates varying current levels to treat sleep apnea without disrupting patient sleep.
A controller processes photoplethysmograph signals to determine respiratory rate using filtering and peak detection algorithms.
Impedance tomography monitors upper airway obstruction to differentiate obstructive from central sleep apnea without complex polysomnography equipment.
A portable cannabis detection system regulates exhaled breath pressure and flow for accurate THC sampling.
A processing system synchronizes vital sign sensor streams with recorded media using a time domain to enable personalized service interactions.
An electronics module in a connected face mask detects respiratory fatigue and skin conditions to reduce illness spread risks.
A heated sensor inside a sample canister draws breath through a fan to resolve portability versus repeability contradictions.
Wireless alcohol sensors transmit blood concentration data to portable devices, automating BAC tracking and eliminating manual input errors.
Decomposes electrocardiogram signals into intrinsic mode functions to extract respiratory rate data.
An implantable device monitors physiological parameters to deliver phrenic nerve stimulation during inspiration.
Boron-doped tungsten oxide sensors detect acetone at room temperature, eliminating heater requirements and reducing power consumption.
Remote optical imaging determines balloon volume in a disposable spirometry system, eliminating mechanical drift and sterilization costs.
EMG and ECG biomarkers identify obstructive apnea to prevent respiratory arrest.
A vital sign monitoring device uses dual frequency excitation to extract cardiac and respiratory signals from impedance variations.
An IR-UWB radar system classifies biometric signals by distance to isolate heartbeat data from mixed reflections.
A phased-array radar system aggregates 3D point cloud data using DBSCAN clustering to detect respiration and heartbeat signals.
Bonding PEDOT/PSS to a CuBr base film raises electroconductivity, resolving high resistance issues that limit aldehyde detection sensitivity.
A system determines individual spectral boundaries for sleep stage classification using respiratory wave amplitude metrics.
Radar cardiography reconstructs cardiac data by separating cardiovascular activity from respiratory interference in spatial domains.
A transabdominal fetal pulse oximetry system uses multiple light sources and photodetectors to measure fetal blood oxygenation levels.
A finite state machine determines respiratory phase from navigator echo data to control magnetic resonance imaging acquisition timing.
Assessment circuit analyzes respiration rate trends and temperature changes to detect viral-respiratory diseases without clinic visits.
A metabolic analysis device routes exhaled air through a mixing mini-chamber or bypass line to measure oxygen and carbon dioxide concentrations.
Analyzing cardiac impedance trends detects thoracic fluid accumulation without complex filtering hardware.
A helical conductive coil generates a magnetic field parallel to its length, eliminating destructive interference when multiple belts are used in proximity.
Blind Source Separation isolates venous and arterial components from photoplethysmograph signals to extract reliable oxygen saturation data.
An electric field generator and quadrature demodulator detect physiological changes through frequency shifts without physical contact.
Automated sensors measure piston displacement to track inspired air volume, resolving insufficient patient compliance and reducing healthcare costs.