Abstract: The present invention relates to fluorescent, radio-opaque and magnetic quantum nanoparticles, useful as multifunctional contrast agents or probes for in vivo bioimaging, and methods of their use. The invention provides for multifaceted bioimaging (e.g., intra-arterial pre-operative brain mapping and broad based in vivo diagnostic imaging), including imaging of various cell types, such as stem cells.

Abstract: An applicator device for applying a substance to an area of the body that is difficult to reach includes a collapsible handle and a head portion rotatably mounted on one end. The head portion includes an attachment means, which can comprise either a field of hooks or a field of loops. The attachment means receives a two-sided pad engagement member that preferably has fields of loops or hooks on one side to engage the respective hooks or loops of the attachment member, and a field of hooks on its opposite side. The hooks of the pad engagement member can securely retain a pad that carries the substance to be applied to the body.

Abstract: Multimodal nanoparticles are nanoparticles containing contrast agents for PAT and one or more of luminescence imaging, x-ray imaging, and/or MRI. The multimodal nanoparticles can have a dielectric core comprising an oxide with a metal coating on the core. The particles can be metal speckled. The multimodal nanoparticles can be used for therapeutic purposes such as ablation of tumors or by neutron capture in addition to use as contrast agents for imaging.

Abstract: The present invention relates to fluorescent, radio-opaque and magnetic quantum nanoparticles, useful as multifunctional contrast agents or probes for in vivo bioimaging, and methods of their use. The invention provides for multifaceted bioimaging (e.g., intra-arterial pre-operative brain mapping and broad based in vivo diagnostic imaging), including imaging of various cell types, such as stem cells.

Abstract: An applicator device for applying a substance to an area of the body that is difficult to reach includes a collapsible handle and a head portion rotatably mounted on one end. The head portion includes an attachment means, which can comprise either a field of hooks or a field of loops. The attachment means receives a two-sided pad engagement member that preferably has fields of loops or hooks on one side to engage the respective hooks or loops of the attachment member, and a field of hooks on its opposite side. The hooks of the pad engagement member can securely retain a pad that carries the substance to be applied to the body.

Abstract: A power injector 10 that includes a solenoid 23 that moves a piston to cause a liquid to be injected via the needle 13. A shroud 27 engages a switch 28 to cause electric energy to be delivered to the solenoid 24 to cause actuation thereof.

Abstract: A power injector 10 that includes a solenoid 23 that moves a piston to cause a liquid to be injected via the needle 13. A shroud 27 engages a switch 28 to cause electric energy to be delivered to the solenoid 24 to cause actuation thereof.

Abstract: An applicator (33) to deliver viscous liquids such as cream, mayonnaise or mustard. The applicator (33) includes a cylinder assembly (25) which receives a piston (4). The cylinder assembly (25) separates a pair of chambers (26, 27). The piston (4) includes a one-way valve (3) which is resiliently deflectable from apertures (28) in the piston to provide for the flow of liquid from the chamber (26) to the chamber (25). An inlet extends to the chamber (26) while an outlet valve (1) communicates with the chamber (24). This arrangement minimizes hand pressure required by an operator to manipulate the applicator (30) in delivering the viscous liquid.

Abstract: An applicator (10) to deliver a liquid via a needle (20). The applicator (10) includes a shroud (44) which cooperates with a trigger (41) and trigger lock (52) so that the needle (20) is only exposed upon actuation of the trigger (41) and liquid is only injected when the shroud (44) is retracted to a position at which a desired length of the needle (20) has penetrated.

Abstract: Coherent, frequency multiplexed radar is a new generic type of continuous wave radar architecture wherein contiguous pulses of discrete frequency segmented signals are serially transmitted from an antenna, and after reflection from radar targets, signals from the same antenna are coherently processed in a parallel manner to provide correlated measurements of target's pulse compressed range and radial velocity. Simultaneously transmitted and received signals are separated by frequency multiplexing.

Abstract: An array of five, ridge waveguide horns provides monopulse operation over a wo octave range. A unique coax-to-ridge waveguide input coupler and an extended ridge matching section at the radiating apertures provide the extended frequency range. The horn assembly is lightweight, compact and suitable for array applications. A five horn monopulse primary feed array is exemplified.

Abstract: Existing ultra-sonic echogram systems have limited resolution and contrast capabilities. The described system utilizes a pseudo-random frequency waveform and coherent signal processor to resolve image geometry simultaneously and non-ambiguously in radial distance (time) and velocity (frequency) domains. The high resolution and spectral detail provides a definitive data base for further data processing wherein vascular anomalies can be vividly displayed. Hazards associated with anesthesia, toxic injections, surgical entry and exposure to X-rays are avoided.