Abstract: Apparatus and method for screeding/rodding concrete (and method of manufacture of the same), comprising: a rigid base member configured to comprise a tight tolerance of levelness along its length, and a mounting structure for securely attaching a working layer; attachment of a preferably fiberglass working layer comprising a durable material deposited on the rigid base member and capable of being finished to a smooth surface suitable for advantageous direct contact with poured wet concrete.

Abstract: Apparatus and method for screeding/rodding concrete (and method of manufacture of the same), comprising: a rigid base member configured to comprise a tight tolerance of levelness along its length, and a mounting structure for securely attaching a working layer; attachment of a preferably fiberglass working layer comprising a durable material deposited on the rigid base member and capable of being finished to a smooth surface suitable for advantageous direct contact with poured wet concrete.

Abstract: An electrotransport drug delivery device (1) including a reusable component (2), a disposable component (4), and a removable liner (8) temporarily separating the mating surfaces of the components (2,4) during alignment and assembly of the components (2,4). At least one of the components (2,4) has an adhesive mating surface (11) facing the removable liner (8). Also disclosed are a disposable assembly (4) for an electrotransport device (1) and a method for assembling reusable and disposable components (2,4), the components (2,4) of the electrotranport device assembly (1) are adhesively mated.

Abstract: An ultrasound scanning system particularly adapted for imaging skeletal structure, such as the spinal column. An ultrasound scanning head for generating ultrasound waves and for receiving reflected ultrasound signals is mounted on a transporter for moving it linearily along the spine between a cervical reference point and a sacral reference point. A position transducer monitors the position of the transducer along the spine and a counter measures the time between the ultrasound pulse and its echo to determine the distance from the transducer face to the tissue interface responsible for generating the echo. The distance and range data is smoothed and analyzed in a digital computer using algorithms that distinguish between the echoes received from bone and other tissue such as lung tissue. The bone data is further processed via computer to produce a visual representation of the spine and rib structure sufficient for the diagnosis of spinal misalignment characteristic of scoliosis.

Abstract: A heart monitor for transtelephonic monitoring of heart activity and of the functioning of implantable heart valves. The monitor is provided with foam electrodes for monitoring heart activity and with a microphone for simultaneous acoustic monitoring of heart valve function. The monitor is adapted for easy use by the inclusion of an electrode gel reservoir and a pump for transferring gel to the electrodes. A cover for protection of the electrodes is provided. Movement of the cover to expose the electrodes activates the pump and moistens the electrodes with gel. Closing the cover seals the electrodes and prevents evaporation of the gel.

Abstract: An ultrasound scanning system having a linear array of ultrasound transducers and a transporter system for moving the transducers along the human back. There is a means for producing a position signal indicative of the position of the array along the plane of the back, and a means for producing a range signal representative of the distance of objects interacting with the ultrasound signal from the transducer. An output means, such as a printer or cathode ray tube display, is responsive to the range signal and the position signal to produce an output representative of the structure of the body imaged during the back scan.

Abstract: An ultrasound scanning system particularly adapted for scanning large body areas such as the back. There is a plurality of ultrasound transducers, each mounted in a transducer shoe, and each shoe in turn mounted on a plunger which seats in the bore of a housing so that it is free to move independently from the other transducers in a direction parallel to the bore, but is constrained to move with the other transducers in the two perpendicular directions. A spring seated in the bore between the housing and the plunger provides a bias force to maintain a positive and uniform contact between the transducer and the back.

Abstract: An ultrasonic transducer system for scanning a body including an ultrasonic transducer mounted in a transducer shoe and means for applying acoustic coupling fluid to the transducer/body interface as the shoe moves along the interface. The means for applying the coupling fluid includes a fluid reservoir and a fluid dispensing channel in the transducer shoe, a position transducer for producing a signal proportional to the movement of the dispensing means along the transducer/body interface, a microprocessor responsive to the signal, and a stepping motor driven pump controlled by the microprocessor to pump fluid from the fluid reservoir to the dispensing channel in an amount determined by the movement of the dispensing means along the ultrasonic transducer/body interface.

Abstract: A control cover for a nerve stimulator is moveable between a protective position in which access to the stimulator controls is blocked to prevent accidental alteration of the settings thereof, except for emergency OFF button which remains accessible at all times and a use position in which the controls are accessible for intentional changing of control settings. The disclosed embodiment has a sliding panel which covers a set of keyboard switches. Apertures are provided in the cover and, in one position of the sliding cover, are aligned with the switches to permit access thereto. In the protective position of the cover, the apertures in the cover are moved out of alignment with the switches, preventing access thereto. The OFF switch and its corresponding aperture in the cover are larger than the other switches, so that it remains accessible in both positions of the cover.