Abstract: An imaging system, such as a surgical microscope, laparoscope, or endoscope or integrated with these devices, includes an illuminator providing patterned white light and/or fluorescent stimulus light. The system receives and images light hyperspectrally, in embodiments using a hyperspectral imaging array, and/or using narrowband tunable filters for passing filtered received light to an imager. Embodiments may construct a 3-D surface model from stereo images, and will estimate optical properties of the target using images taken in patterned light or using other approximations obtained from white light exposures. Hyperspectral images taken under stimulus light are displayed as fluorescent images, and corrected for optical properties of tissue to provide quantitative maps of fluorophore concentration. Spectral information from hyperspectral images is processed to provide depth of fluorophore below the tissue surface. Quantitative images of fluorescence at depth are also prepared.

Abstract: A method and device for determining the depth and fluorophore concentration of a fluorophore concentration below the surface of an optically absorbing and scattering medium suitable for use in fluorescence-based surgical guidance such as in tumor resection is described. Long-wavelength stimulus light us used to obtain deep tissue penetration. Recovery of depth is performed by fitting measured modulation amplitudes for each spatial frequency to precomputed modulation amplitudes in a table of modulation amplitudes indexed by optical parameters and depth.

Abstract: The invention relates to the production of naphthalene-depleted heavy aromatics, the naphthalene-depleted heavy aromatic product made thereby, and to an apparatus adapted for said production.

Abstract: Improved apparatus for attachment of a U-shaped metal clip around gathered material in a first tie operation along with means for attachment of a string loop includes a tape feed which feeds loops mounted on the tape one at a time into position for engagement with a loop feed mechanism that directs the loop into the throat of a clipper. There the clip is attached about gathered casing or netting material by means of a clipper. Once the clip is attached, the entire first tie assembly is removed by take out wheels.

Abstract: Apparatus for application of a first tie to a hollow casing material includes a mechanism for cutting incremental units of casing from a reel and for simultaneously punching openings through the casing. Incremental units are then transferred from the cutting apparatus into a clipper for application of a clip about the incremental unit of the casing material.

Abstract: An improved method for attaching a bungee cord to a fastener comprises folding over the end of the bungee cord and attaching a U-shaped metal clip thereto.