Abstract: A bipolar blood coagulator probe has a coaxial or other bipolar arrangement for use submerged in a sterile fluid during arthroscopy of joints, with an elongated outer electrode positioned in juxtaposition to an elongated inner electrode and with an elongated electrical inner insulation layer positioned between the outer electrode and the inner electrode. The outer electrode, inner electric, and inner insulation can be concentric to each other or in other configurations, including sandwiched or laminated together. The bipolar probe also has an elongated outer electrical insulation sleeve over the outer electrode and a proximal end outer housing terminating in a plug with two prongs that are electrically connected in the housing to outer electrode and inner electrode. The prongs of the plug are adapted to plug into a suitable receptacle for connection to an RF generator.

Abstract: A shaker table (10) for testing and quality control of devices attached to the table is shown. The mounting table has pneumatic exciters attached (50) thereto. The exciters (50) are attached to the mounting table (20) with a mounting bolt (128) and spacers (132, 132') that comprise an insulating material to inhibit thermal transfer between the device and the exciters (50) and between the mounting table (20) and the exciters (50). The mounting table (20) provides uniform distribution of forces applied by the pneumatic exciters (50). The forces are evenly distributed in all directions from the impact of the exciters on the mounting table. The mounting table (20) is supported on a foundation (2) by adjustable supports (4). The exciters are supplied with pressurized air from a source (12) through an airline (14).

Abstract: A screening apparatus including a testing chamber and a control console for environmental screening and vibrational testing of manufactured products placed inside the testing chamber. The control console is used to control and monitor the operation of the screening apparatus. The control console is supported on an articulated arm so that the control console can be optimally positioned. The articulated arm also protects the control console from the thermal and vibrational stimuli applied to the product being tested. The system wiring between the testing chamber and the control console can be enclosed in or attached to the articulated arm so that the wires do not impede the mobility of the articulated arm and do not pose a hazard to people working near the screening apparatus. Optional rigid bars can be placed with the walls of the testing chamber to increase the resonance frequency of the testing chamber to further protect the control console from the vibrational stimuli applied to the product being tested.

Abstract: The flexible insulated heater includes a heater mat surrounded by an insulation jacket. The heater mat is preferably made of two layers of fiberglass reinforced rubber sheets laminated together with resistive heater wires sandwiched between the laminated sheets. The heater mat is formed with a curvature and size to fit snugly around the peripheral surface of the pipe that is to be heated. A jacket of thermally insulative material, such as a polymer foam, is molded over the external surface of the heater mat. The insulated jacket holds the heat generated by the heater mat from escaping radially outward, and it protects against burns to persons who might touch the heater.

Abstract: A hand-held, battery operated, Doppler ultrasound diagnostic device for use in obstetrical applications to, for example, measure fetal heartbeat, and vascular applications to, for example, measure blood flow and pressure, includes a cordless probe, a base unit, and an electric recharging stand. The probe detects the physical response signal being monitored through Doppler ultrasound techniques. The signal is used to frequency modulate a sine wave carrier signal which is transmitted by the probe and received by the base unit. The carrier signal frequency and wave form is chosen so as not to cause interference with other medical equipment that may be nearby. The base unit demodulates the carrier signal and retrieves the human response signal. The base unit displays the human response signal visually with an LED display and audibly with built in speakers. In addition, the base unit includes an output connectors which allow the human response signal to be recorded on a tape recorder or played through earphones.