Abstract: A nerve cuff electrode with a clip-on design feature is provided for the stimulation of nerves and nerve fibers and the recording of bio-potentials from nerves and nerve fibers. The nerve cuff includes an aperture having a longitudinal slit, a pinch hinge having a first arm and a second arm spaced apart from each other and at least one electrode embedded in the inner circumference of the aperture. The longitudinal slit is configured to open when a compressive force is applied to the outer surfaces of the first arm and the second arm whereby the first and second arm are squeezed together. When the compressive force is removed, the spring tension of the cuff returns the longitudinal slit to its normally closed position.

Abstract: A field effect transistor is disclosed whose output is modulated by a control gate that is movable in a direction parallel to the transistor substrate surface. The device is capable of lateral motion with large amplitude (tens of micrometers) with appropriate selection of gate materials and design. The transistors may be used in microsensors or microactuators. When used as a microsensor, the gate may be driven parallel to the substrate by the force to be measured (such as an inertial force). When used as a microactuator, the gate may be driven by an actuating drive such as an electrostatic, magnetic, or thermal actuation. The device measures or controls the displacement of a mechanical structure parallel to the transistor substrate. The change in the output current of the transistor is a linear function of the in-plane displacement of the gate, allowing direct mechanical displacement-to-current conversion.