Methods and apparatuses for blood glucose measurement are provided. A first glucose concentration in a body fluid of a user is detected based on a first measurement interval. A first blood glucose level of the user is determined based on the first glucose concentration. A glucose concentration measurement interval is changed from the first measurement interval to a second measurement interval according to an occurrence of an event. A second glucose concentration in the body fluid is detected based on the second measurement interval. A second blood glucose level of the user is determined based on the second glucose concentration.

One or more techniques and/or systems are disclosed for monitoring a health status of an individual. A person responsible for an individual's well-being may use such a system or technique to monitor them for possible health risks, such as heat stroke. A data reading device can be disposed in a non-invasive wearable, such as a wristband or headband, to be worn by the monitored individual. The data reading device can monitor data indicative of the target individual's health status, such as temperature, pulse rate and sweat conductivity. The health status data can be compared to pre-determined baseline thresholds for the individual, and a notification can be provided if the thresholds are exceeded.

Devices that sense sweat and are capable of providing chronological assurance are described. The device uses at least one sensor to measure sweat or its components and to determine a sweat sampling rate. The chronological assurance is determined, at least in part, using the sweat sampling rate. The sweat sampling rate may be determined, at least in part, using a sweat volume and/or a sweat generation rate, both of which may be measured or predetermined.

A wearable device for non-invasive monitoring of the presence, amount, and/or concentration of an analyte in a sample from a user of the device is described. The analyte is selected to be indicative of or related to a physiological status of a user. Relevant physiological status include hypoglycemia, infection, respiratory infection, urinary infection, gastrointestinal infection, obesity, diabetes, type I diabetes and type II diabetes.

A device for collecting a fraction of the perspiration excreted by a subject, the device being of the type including a multi-layer patch including: a first layer including at least one perspiration-collecting aperture and a transfer opening; a hydrophilic absorbent layer, positioned above the first layer and communicating with the external environment, and communicating with the first layer via the transfer opening; a film, possibly transparent, that constitutes a barrier against water and against vapour, and that covers at least the upper face of the absorbent layer; the device notably including means for regulating the rate at which perspiration in the liquid and/or vapour state penetrates into the absorbent layer.

The present invention relates generally to systems and methods for measuring an analyte in a host. More particularly, the present invention relates to systems and methods for transcutaneous measurement of glucose in a host.

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.

Wearable patches comprising multiple separable adhesive layers. One or more of the layers can comprise electronics, mechanical components, gauze, medicine and/or other types of hardware suitable for the intended use of the patch. In use, a first layer of the patch is adhered to a user. When it is time to change layers, the patch is removed from the user, the first layer is removed from the patch to expose a second adhesive layer, and the second layer is applied to the user. The process may be repeated until the remaining layers of the patch have been used.

A biosensor device includes a porous substrate, where the substrate comprises semiconductor elements functionalized to conjugate with a particular analyte, the semiconductor elements are embedded within at least a portion of the substrate, and the substrate is to absorb fluid capable of carrying the particular analyte. The device further includes two or more electrodes attached to the substrate to correspond to the portion of the substrate, where the portion of the substrate further comprises Room-Temperature Ionic Liquid (RTIL).

A sweat sensor device (200) with analytical assurance includes at least one sensor (220) for detecting a first analyte, and at least one calibration medium (270) containing at least the first analyte. When the first analyte in the at least one calibration medium (270) comes into contact with the at least one sensor (220), the calibration medium (270) provides a calibration of the at least one sensor (220). A sweat sensor device (200) may further include a carrier (240) having at least one aperture (220a) and a reservoir (254) for storing the at least one calibration medium (270). The at least one aperture (220a) provides fluidic access to the at least one sensor (220) from the reservoir (254).