Abstract: The invention is directed to Apparatus for measuring a physical parameter, such as the saturation percentage of oxygen in blood. The pulse oximeter is built into the finger clip, and therefore the device is small, lightweight and very portable, as well as more reliable.

Abstract: A process is disclosed for preparation of telechelic difunctional unsaturated oligomers and polymers having at least one internal carbon-to-carbon double bond wherein the functional groups are terminal reactive groups. The reactants are acyclic polyenes with terminal carbon-to-carbon double bonds and olefins with at least one functional group. The polymerization process is substantially free of side reactions comprising double bond migration and cyclization. The telechelic difunctional unsaturated oligomers and polymers have a functionality of about 2 and are suitable for preparation of block copolymers, ion exchange resins, adhesives, and flocculants and for further functionalization.

Abstract: A medical device for invasive positioning in the body comprises a liquid flow passage extending between an entry orifice (24) for admitting liquid into the device and an exit orifice from which liquid may pass from the device into the body, and means for establishing a positive electric field at a point (28) within the device. Negatively-charged bacteria are attracted by the positive field towards that point and away from the operative end of the device.

Abstract: A multiple configuration toy vehicle includes an elongated chassis supported by a plurality of wheels. A rear support is pivotally secured to the rear of the chassis. A creature includes a center body, a rear body and head. The head and rear body are pivotally secured to the center body. The rear body is removably securable to the rear support and includes foldable wings which open as the rear body pivots with respect to the center body.

Abstract: A compact laser construction instrument intended for use by the average construction contractor. The instrument is capable of generating a rotating plane of laser light and a beam of light that is perpendicular to the rotating plane. It includes a beam generator adapted to generate a beam of collimated light along a given axis. A rotating platform is provided for supporting the beam generator for rotation in a plane parallel the axis of the collimated light and about a rotation axis that is perpendicular to the axis of the collimated light in order to generate a plane of light. A means is provided that is positioned for rotation with the platform for generating a second beam of collimated light along the rotation axis to generate a rotating narrow beam of light that is perpendicular to the plane.

Abstract: A laser system generates a beam consisting of light of two wavelengths, one of which is in the visible spectrum. The light of the other wavelength is ultraviolet and is generated from the visible light as a harmonic of it. The ultraviolet light is focussed, by reflection only, onto a target. Most of the visible light is separated out of the beam by dichroic mirrors but a very small residue is allowed to illuminate the target so that the exact position at which the ultraviolet light impacts the target can be monitored by means of a microscope.

Abstract: An apparatus and method for guiding and centering a catheter to a treatment site within a passageway in the human body includes a flexible tube having a distal end dimension to pass freely along the passageway, and a proximal end adapted to extend outside the body. The flexible tube is provided with a peripherally expandable zone at the distal end of the tube and a longitudinal lumen through the flexible tube dimension for passing a catheter therethrough. The distal end of the flexible tube is guided to a desired location within the passageway. The peripheral zone at the distal end of the tube is then expanded so that the expandable zone pushes against the inner wall of the passageway to center the distal end of the tube within the passageway. With the tube positioned within the passageway, a catheter is passed through the longitudinal lumen of the flexible tube.

Abstract: The present invention concerns a femoral hip prosthetic implant, and a process, that incorporates an interior channel in the implant, which channel permits the implant, after it is properly positioned in a canal at the proximal end of a prepared femur, to be left in that position. Cement is then injected through that channel and discharged through medial ports in the implant to flood and up-well in the space between the implant and the femoral canal, thereby bonding and sealing the implant to the proximal portion of the femur while the implant remains seated in the desired position within the femur. Preferably a collar is provided at the distal portion of the stem to firmly seat and center the stem within the femoral canal. Also, preferably a spacer is provided at the mid-portion of the stem to center the stem within the femoral canal and to prevent cement from passing down the femoral canal beyond the proximal end of the stem.

Abstract: The present invention provides a vaccine for stimulating or enhancing in a subject to whom the vaccine is administered, production of antibodies directed against 9-O-acetyl GD3 ganglioside comprising an amount of purified 9-O-acetyl GD3 ganglioside effective to stimulate or enhance antibody productionThis invention was made with government support under Grant Numbers CA-40532 and CA-43971, National Cancer Institute, Department of Health and Human Services. Accordingly, the U.S. Government has certain rights in the invention.

Abstract: A process for the halogen-assisted conversion of lower alkanes to higher molecular weight hydrocarbons is provided. A first reaction mixture including lower alkanes, a hydrogen halide and an oxygen-containing gas are contacted with a catalytic composition of crystalline copper aluminum borate at appropriate reaction conditions to form an intermediate composition including halogenated alkanes. The halogenated alkanes are subsequently contacted with a catalytic composition of a pentasil molecular sieve material under appropriate reaction conditions to form a product mixture including hydrocarbons having molecular weights greater than the lower alkanes.

Abstract: A method for halogenating hydrocarbons wherein a reaction mixture including a hydrocarbon-containing feed, a hydrogen halide and an oxygen-containing gas is contacted at appropriate reaction conditions with a catalyst of copper aluminum borate to form halogenated hydrocarbons.

Abstract: An apparatus and method for guiding and centering a catheter to a treatment site within a passageway in the human body includes a flexible tube having a distal end dimension to pass freely along the passageway, and a proximal end adapted to extend outside the body. The flexible tube is provided with a peripherally expandable zone at the distal end of the tube and a longitudinal lumen through the flexible tube dimension for passing a catheter therethrough. The distal end of the flexible tube is guided to a desired location within the passageway. The peripheral zone at the distal end of the tube is then expanded so that the expandable zone pushes against the inner wall of the passageway to center the distal end of the tube within the passageway. With the tube positioned within the passageway, a catheter is passed through the longitudinal lumen of the flexible tube.

Abstract: This invention provides a monoclonal antibody, produced by the hybridoma cell line designated GXM1, which specifically binds to a human class 1tumor antigen. This invention also provides a human monoclonal antibody, produced by a hybridoma cell line designated HJM1, which specifically binds to each of the ganglioside antigens GD2, GD3, GM3 and GD1b. This invention further provides a human monoclonal antibody, produced by a hybridoma cell line designated FCM1, which specifically binds to the ganglioside antigens GM3 and GD1a. Finally, this invention provides a human monoclonal antibody, produced by a hybridoma cell line designated DSM1, which specifically binds to a human class 2 tumor protein antigen.

Abstract: A method for converting halocarbons, especially lower halocarbons like chloromethane, especially methyl chloride, to hydrocarbons, especially higher molecular weight hydrocarbons, wherein a reaction mixture including the halocarbons is contacted with a borosilicate-containing catalytic composition having a specified composition in terms of mole ratios of oxides and a specified X-ray diffraction pattern to form a product mixture of the desired hydrocarbon(s).

Abstract: A process for producing coated magnesium granules or powder having a protective surface layer selected from the group consisting essentially of magnesium fluoride, magnesium oxyfluoride and magnesium hydroxyfluoride by contacting magnesium particles with a fluoride-containing compound to form the layer of magnesium fluoride on the magnesium particles.

Abstract: The invention is an improvement in a lightweight carbon-carbon composite piston, the improvement comprehending the use of near-net shape knitted or warp-interlock pre-forms to improve the structural qualitites of the piston. In its preferred embodiment, a one piece, tubular, closed-ended, knitted pre-form (a sock) of carbon fibers (11) embedded within the matrix of the piston structure forms the crown (12), side wall (15), skirt (16) and inner surface (18) of the piston, and wrap-interlock pre-forms strengthen the piston crown and wrist pin bosses.

Abstract: A reusable, durable heat pipe which is capable of operating at temperatures up to about 3000.degree. F. in an oxidizing environment and at temperatures above 3000.degree. F. in an inert or vacuum environment is produced by embedding a refractory metal pipe within a carbon-carbon composite structure. A reusable, durable heat pipe panel is made from an array of refractory-metal pipes spaced from each other, each refractory-metal pipe being embedded within a carbon-carbon composite structure. The reusable, durable, heat-pipe panel is employed to fabricate a hypersonic vehicle leading edge and nose cap.

Abstract: An electronic apparatus for sensing the percentage of different blood constituents in arterial blood. Light of a plurality of separate wave lengths is sequentially made to pass through a portion of the body, either by direct transmission or scattering so that the pulsatile blood flow modulates the intensity of the light. A signal processing circuit functioning in accordance with the Lambert-Beer Law is used to determine the percentage of different blood constituents from the fluctuations component of the logarithm of the light absorption. The sampling of the separate wave lengths is time-multiplexed through a common channel, thus obviating the need for a separate channel of similar electronics for each constituent to be monitored. The signal processing circuitry is also effective to compensate for noise due to ambient light or other stray sources, thus improving the overall accuracy.