There is provided a method of forming a thin film-based microfluidic electronic device. The method includes: providing a first elastomeric thin film layer on a substrate; depositing a first elastomer on the first elastomeric thin film by direct ink writing to form an elastomeric structure configured to define a microfluidic channel on the first elastomeric thin film layer; providing a second elastomeric thin film layer over the elastomeric structure to cover the microfluidic channel; providing a sacrificial layer on the second elastomeric thin film; depositing liquid metal into the microfluidic channel to form a conductor in the microfluidic channel; and electrically connecting the conductor to an electronic component. The thin film-based microfluidic electronic device is a tissue or skin adhesive sensor including a skin adhesive acoustic device.

Provided is a wearable patch that can reliably interrupt the power supply from the cell after use and can be disposed of as it is. Moreover, provided is a sheet-type cell that can reliably interrupt the power supply after use and can be disposed of safely. The wearable patch is worn on the body and includes a functional element, a drive circuit unit that operates the functional element, and a cell as a power source. A cutting facilitating member is formed to allow a predetermined portion of the wearable patch to be cut with a force of 200 N or less so that the power supply from the cell to the drive circuit unit is interrupted.

Systems and methods are provided for a multi-modal sleep system comprising a data processor for operating in a plurality of operating modes. The data processor may detect at least one sensor providing data to the data processor and determine a sensor type associated with each of the at least one sensor. The data processor may select a mode of operation based on the determined sensor type of the detected at least one sensor and of each of the at least one sensor. A first of the plurality of operating modes may be selected in response to determining that the at least one detected sensor includes a first sensor type or combination of sensor types. The data processor may be configured to receive data from the at least one detected sensor and process the received data according to the selected mode of operation to output a characterization of a user's sleep.

Numerous aspects of communication devices, methods, and systems are described in this application. One aspect is an apparatus comprising an energy generator comprising a plurality of generator elements operable to output a plurality of different energy types in a signal direction toward the skin. Each generator element of the plurality of generator elements may be independently operable, when the energy generator is positioned relative to skin, to communicate with different nerves associated with the skin by outputting a different portion of an energy signal in the signal direction toward the skin with one energy type of the plurality of different energy types.

A patch and sensor assembly has a biosensor housed in a reusable portion that connects to a mapping and localization system (MLS) via biosensor wires. A disposable portion has an electrode layer through which signals are transmitted to the MLS via ACL wires. The biosensor and ACL wires extend through a single cable exiting the reusable portion. The disposable portion includes an adhesive layer for adhering the electrode layer to a patient, on the electrode layer, and an engagement element for detachably receiving at least a portion of the housing of the reusable portion. The reusable portion includes a housing in which the biosensor has biosensor wires that exit the reusable portion. The housing is also adapted to carry and/or provide support to an ACL contact member responsive to the electrode layer of the disposable portion, and ACL wires that exit the reusable portion.

An adhesive device may include a first adhesive surface configured to be adhered to skin of a user, and a second adhesive surface opposite the first adhesive surface and configured to be adhered to a medical device. The adhesive device may also include an intermediate region between the first adhesive surface and the second adhesive surface, where the intermediate region includes a detector compound embedded in the intermediate region configured to change based on interaction of the detector compound with a target molecule.

An embodiment is a wearable device attached to a living body, including a base material including a first surface and a second surface opposite to the first surface, a first flow path in the base material having a first end and a second end and extending along a direction toward the second surface, the first end open to the first surface and, a second flow path in the base material having a third end and a fourth end, the third end connected to the second end, the fourth end open to the second surface, a water absorbing structure on the second surface and configured to absorb sweat transported from the first flow path through the second flow path, a light source configured to emit light toward the second flow path, and a light receiving element configured to receive the emitted light and convert the received light into an electrical signal.

A system and related methods include a durable component, an indicator component including an indicator zone comprising at least one colorimetric analyte sensing element, at least one moisture sensor, and a fluid collection reservoir. The durable component contains at least one spectrophotometer, a computing system, and means for electronic communication between the computing system and at least one external device. The indicator component includes at least one colorimetric analyte sensing element and a fluid transport layer in fluid communication with the indicator zone, and it is arranged and configured for attachment to the durable component. In addition, the moisture sensor is arranged and configured to communicate the presence of moisture to initiate a predetermined delay in measuring the concentration of at least one analyte. The fluid collection reservoir is releasable from at least one of the indicator components and the durable component at a predetermined breaking point for clinical analysis.

A sensor cover includes a cover film having an upper cover film and a lower cover film that are joined to each other at least at respective one sides thereof, and the cover film is shaped like a bag and configured to accommodate a temperature sensor when in use. The sensor cover also includes a self-adhesive member that has adhesiveness and is disposed on an outside surface of the lower cover film. The sensor cover further includes a sensor mounting member that is disposed on an inside surface of the lower cover film and configured to attach the temperature sensor closely to the lower cover film. The sensor cover further includes a sealing member that closes and seals an edge portion of an opening of the cover film.

A wearable device according to an embodiment includes a detection unit, a first layer, a second layer, and a third layer. The detection unit detects the living body information. The first layer is flexible and disposed in a first direction relative to the detection unit and includes a conductor electrically connected to the detection unit. The second layer is disposed in the first direction relative to the first layer and is harder than the first layer. The third layer is disposed in the first direction relative to the second layer and includes an electronic component electrically connected to the conductor.