Abstract: In one embodiment, a device measures the length of the urethra. The device includes a hollow tube having markings, wherein the hollow tube includes an internal end and an external end. The internal end includes one or more fins that can be manipulated into an open position and a closed position. The external end includes an opening allowing the insertion of a push-tube sliding axially within the body of the hollow tube, the push-tube being used to manipulate the fins into the open and closed positions. Further, an outer ring moves axially along the exterior of hollow tube and is utilized to measure the length of the urethra.

Abstract: A system for generating pulses of charged particles, comprising a high intensity pulsed laser emitting laser pulses which, when impacting a target, generate pulses of charged particles. The particles passes through an electromagnet energized by a low inductance current feed incorporating a light activated switch to turn the energizing current on and off. Part of the light of the laser pulse is directed onto the light activated switch, such that the magnetic field is optically synchronized with the generated pulses of charged particles. This enables energizing the magnet only during passage of the pulses, such that it is lighter and more energy efficient than prior art systems using CW electromagnets. Synchronization also enables selection of charged particles having a predetermined range of particle energy, by timing activation of the magnetic field such that it diverts onto a selected beam path only the particles having the predetermined range of energies.

Abstract: An actuator is disclosed for delivering mechanical vibrations to the body of a subject. The actuator includes a piezoelectric element, electrodes in electrical or wireless communication with an electrical source and the piezoelectric element to drive the piezoelectric element, a polymeric protective layer encapsulating the piezoelectric element and at least part of the electrodes, and an enclosure attached to the protective layer and defining a space between the protective layer and the enclosure allowing desired modes of vibration to develop across a surface of the protective layer that encapsulated the piezoelectric element. The actuator can include a skin attachment article having a mounting pad for attaching to the skin of the subject and for attaching the actuator and having a cover that overlies the actuator and the mounting pad when the article is attached to the skin of the subject.