Abstract:
An apparatus includes an electrical power source and a solid-state circuit located within a housing. The circuit is coupled to the electrical power source such that circuit is initially in an inactive state in which electrical current is prevented from flowing through the solid-state circuit, the inactive state corresponding to an OFF mode of the apparatus. The circuit further includes an active state in which electrical current is allowed to flow through the solid-state circuit, thereby turning the apparatus in an ON mode, the active state being triggered by a momentary voltage and remaining active after the momentary voltage is removed.
Abstract:
The present invention relates to portable devices for point-of-care diagnostics that can perform measurements on a sample (e.g., blood, serum, saliva, or urine) and relay data to an external device for, e.g., data analysis. The device can comprise a paper-based diagnostic substrate and a base substrate that include electronic circuitry and electronic elements necessary for performing the measurements. The device can also comprise an antenna for near field communication with an external device. Another aspect of the invention relates to methods of using these devices.
Abstract:
A device includes a wirelessly enabled energy harvesting device, an energy storage component, a DC-DC converter, and a functional circuit. The energy storage component is electrically coupled to the wirelessly enabled energy harvesting device for storing energy harvested by the wirelessly enabled energy harvesting device from a wireless transmitting device positioned adjacent to the device. The DC-DC converter is electrically coupled to the energy storage component for receiving a voltage output from the energy storage component and converting the received voltage output to a second voltage level to provide power to one or more components of the device. The functional circuit is for measuring a concentration of a substance in a fluid sample. The functional circuit is coupled to the DC-DC converter such that the functional circuit obtains at least a portion of the power provided by the DC-DC converter.