A respiratory monitoring apparatus comprises at least one motion sensor and a processing device. The at least one motion sensor senses an angular motion of a measured part capable of indicating a respiratory motion, and outputs an angular velocity vector of the measured part; the processing device, connected to the motion sensor, extracts a respiratory angular velocity from the angular velocity vector, and acquires a respiratory wave according to the respiratory angular velocity.

A wearable device that wirelessly automatically acquires and processes signals indicative of a condition of subject's health. The device is adapted to wirelessly transmit the processed signals and other information to a suitable analytic and/or storage device where the subject's condition can be analyzed and/or stored. The signals could be ECG signals and the condition could be the health of the subject's heart.

A wireless pressure ulcer alert dressing system for warning a patient or caregiver that soft tissue pressure or health condition has exceeded some predetermined level that over time would necessitate moving the patient to prevent or at least reduce a risk of soft tissue damage. The dressing assembly is adapted to be applied to or near a surface of the patient's body and generate electrical outputs corresponding to soft tissue pressure and other health characteristics sensed at the surface. The dressing assembly generates output signals based on the electrical outputs and corresponding to whether or not the soft tissue pressure has exceeded a predetermined pressure level during the preselected time period. The dressing assembly includes a pocket formed therein for removable, secured and protected insertion of a variety of different sensors such as multiple pressure sensors.

According to various embodiments, a regional oximetry sensor may include a light emitting element configured to emit light, a light detector configured to receive the light, and a memory device configured to store a baseline. The baseline stored by the memory device enables a regional oximetry monitor to display the baseline on a display of the regional oximetry monitor.

Blood oxygenation sensors including high-aspect-ratio photodetector elements are discussed herein. Such high-aspect-ratio photodetector elements may provide improved signal-strength-to-power-consumption performance for blood oxygenation sensors incorporating such photodetector elements as compared with blood oxygenation sensors incorporating, for example, square photodetector elements.

Provided is a system for measuring biological signals of a user, which includes a sensor module configured to acquire ballistocardiogram (BCG) signals of a user via a present channel, where the present channel is at least one channel of the sensor module, a decomposition module configured to decompose the BCG signals to decomposed signals, a reconstruction module configured to reconstruct at least a portion of the decomposed signals to reconstructed signals, a processing module configured to process the reconstructed signals to at least one of a heart rate, respiration rate, phases of respiration, and blood pressure, and a display module configured to display at least one output corresponding to the at least one of the heart rate, the respiration rate, phases of respiration, and the blood pressure on a display device.

A tremor-reduction system is provided that delivers electric current to a body region of a subject that is associated with a tremor. A computing device stores received data associated with a tremulous movement of the body region and determines measurements associated with the stored data. If a magnitude of the most recent tremulous movement is the same as or greater than magnitudes associated with prior tremulous movements, characteristics of a subsequent electric current to be applied to the body region may be adjusted.

An apparatus for non-invasively measuring bio-information is provided. The apparatus for estimating bio-information may include a pulse wave sensor including a plurality of channels, and configured to measure pulse wave signals at a plurality of points of an object; and a processor configured to generate oscillograms corresponding to the plurality of channels based on the pulse wave signals measured by the plurality of channels; determine a channel, from among the plurality of channels, for estimating the bio-information based on the oscillograms; and estimate the bio-information based on an oscillogram of the channel.

Methods and systems of evaluating cardiac pacing in candidate patients for cardiac resynchronization therapy and cardiac resynchronization therapy patients are disclosed. The methods and systems disclosed allow treatments to be personalized to patients by measuring the extent of tissue capture from cardiac pacing under various therapy parameter conditions. Systems and methods of optimizing right ventricle only cardiac pacing are also disclosed.

An apparatus including a plurality of light sources configured to emit light for reflection from tissue of a user wearing the apparatus, at least one light detector configured to detect light that enters the light detector to produce a detected signal for a physiological measurement, and a light-conducting element configured to conduct light to the light detector, wherein the apparatus is configured to allow light reflected from the tissue of the user to enter the light-conducting element at a plurality of spatially separated locations.