Embodiments of the disclosed invention provide devices and methods to incorporate suspension-based, i.e., hydrogel-based and thixotropic compound-based, ion-selective electrodes and reference electrodes into a wearable sweat sensing device. Embodiments of this device are configured to monitor sweat electrolyte concentrations, trends, and ratios under demanding use conditions. The accompanying method includes use of the disclosed device to track fluid and electrolyte gain and loss in order to produce an electrolyte estimate, such as a sweat electrolyte concentration, a sweat electrolyte concentration trend, a sweat rate, or a concentration ratio between a plurality of electrolytes.

Systems and methods are disclosed that provide smart alerts to users, e.g., alerts to users about diabetic states that are only provided when it makes sense to do so, e.g., when the system can predict or estimate that the user is not already cognitively aware of their current condition, e.g., particularly where the current condition is a diabetic state warranting attention. In this way, the alert or alarm is personalized and made particularly effective for that user. Such systems and methods still alert the user when action is necessary, e.g., a bolus or temporary basal rate change, or provide a response to a missed bolus or a need for correction, but do not alert when action is unnecessary, e.g., if the user is already estimated or predicted to be cognitively aware of the diabetic state warranting attention, or if corrective action was already taken.

A blood glucose tracking system and method measures emitted microwave energy transmitted to and accepted by blood vessels in a desired target area of a patient in order to determine, in real time and in vivo, appropriate blood glucose levels. A measurement unit comprises a transmitter operatively connected to an antenna to deliver energy towards appropriate subcutaneous blood vessels. The measurement unit determines an accepted energy power value in the blood vessels associated with the desired target area. This measurement energy power value is compared with a calibration value, and the difference is used to determine a resultant blood glucose value. The determined blood glucose value may further be acclimatized using additional sensed values compensating for biological and ambient factors relevant to the patient. The final determined blood glucose value can be displayed for reading and/or transmitted and stored for recording for further reference.

An occupant support adapted for use in a vehicle includes a sensory system and a control system. The sensor system is configured to generate signals indicative of at least one of a physiological characteristic of the occupant.

Described herein are apparatuses (e.g., garments, including but not limited to shirts, pants, and the like) for detecting and monitoring physiological parameters, such as respiration, cardiac parameters, and the like. Also described herein are methods of forming garments having one or more stretchable conductive ink patterns and methods of making garments having one or more highly stretchable conductive ink pattern formed of a composite of an insulative adhesive, a conductive ink, and an intermediate gradient zone between the adhesive and conductive ink. The conductive ink typically includes between about 40-60% conductive particles, between about 30-50% binder; between about 3-7% solvent; and between about 3-7% thickener. The stretchable conductive ink patterns may be stretched more than twice their length without breaking or rupturing.

A wearable electronic fabric comprises a woven fabric formed from a plurality of interlaced threads. The plurality of interlaced threads comprise a plurality of warp threads interlaced with a plurality of weft threads. The woven fabric has a top face and a bottom face. A plurality of conductive threads is included among the plurality of interlaced threads at predetermined intervals and interlacing angles to provide a pattern of connection locations. The connection locations are located at regular intervals on at least one of the top face and the bottom face of the woven fabric.

A system for inducing a Pavlovian association of a scent with a state of less-than-moderate pain, to thereby minimize perceived pain, and to reduce the need for narcotic analgesics. The system includes at least a physiological sensor configured to detect at least one physiological parameter of the user. The physiological parameter of the user may include heart rate variability, blood pressure, galvanic skin response, movement, facial expression and the like. After detection of the physiological parameter, an activation signal is then transmitted to an automatically activated scent diffuser, which diffuses a scent, as a function of the electronic activation signal. The scent may include one or more scent liquids, such as perfumes, essential oils, or the like. Activation of the scent diffuser is maintained by a control circuit that receives the detection signal from the at least one physiological sensor, ascertains that the user has transitioned to a state of less-than-moderate pain, and transmits a signal to the automatically activated scent diffuser. After an association, wherein association further includes conditioning, is created in the user, by iterative performance of the foregoing steps, the user can manually activate a second scent source, in order to trigger a conditioned reflex to assist the user in reducing pain levels.

Systems and methods for processing sensor data and self-calibration are provided. In some embodiments, systems and methods are provided which are capable of calibrating a continuous analyte sensor based on an initial sensitivity, and then continuously performing self-calibration without using, or with reduced use of, reference measurements. In certain embodiments, a sensitivity of the analyte sensor is determined by applying an estimative algorithm that is a function of certain parameters. Also described herein are systems and methods for determining a property of an analyte sensor using a stimulus signal. The sensor property can be used to compensate sensor data for sensitivity drift, or determine another property associated with the sensor, such as temperature, sensor membrane damage, moisture ingress in sensor electronics, and scaling factors.

A system provides ultra-wideband (UWB) positioning. The system exchanges ranging signals at a first rate between a UWB beacon and a UWB tag. The system then determines movement or location information of the UWB tag; and select, based on the movement or location information, a second rate for exchanging subsequent ranging signals between the UWB beacon and the UWB tag. The system then exchanges the subsequent ranging signals at the second rate between the UWB beacon and the UWB tag.

A digital therapeutic treatment or intervention may include a device to alert the user to a need situation related to the user's health status and indicate to the user a treatment or intervention recommendation according to applicable signs and/or symptoms detected and/or known and/or calculated based on information received by the device from the user. The treatment or intervention may include alerting the user to the need to take a specific medication of a specific strength/dosage. Additionally, and/or alternatively, the treatment or intervention may include activating a smart medication delivery device to automatically deliver or release into/onto the user's body a specific medication of a specific strength/dosage.