Abstract: System for imaging the distribution of photon emitting material from a distributed radiation source including a scintillator, photodetectors viewing the scintillator, signal processor, data processing, storage and display. Method of locating a plurality of radiation sources and providing an improved image of their distribution by comparison of radiation responses from known locations with radiation responses from unknown locations. Calibration method for recording characteristic response data from known locations using uniformly irradiating source. Sorting and ordering process of data processing simplification. Structures enhancing position signals at the expense of response uniformity.

Abstract: Tomographic imaging system employs rotating body support for rotating body before imaging radiation detector. Rotating body support moves toward and away from detector to follow body contours and maintain minimal body/detector distance for optimal image quality.

Abstract: Tomographic imaging system employs radiation detector rotated around radiation emitting patient. Body contour following action causes detector to approximate patient surface during rotation, thereby reducing detector/patient distance to improve image resolution. Another embodiment applies the same body contour following action to a system employing rotating patient support and fixed detector. Includes control of detector orientation relative to axis of rotation.

Abstract: Tomographic imaging system employs large area, collimated scintillation detector rotated around radiation emitting subject. Detector support rotates with an inner ring inside a stationary outer ring. Counterbalanced detector support arm is forced by spring action to cause collimator face to follow body contour as detector rotates around the body, thereby reducing collimator to subject distance to improve system resolution. Includes adjustable subject support system.

Abstract: A system for utilizing solar radiation impinging upon exterior building surfaces for heating and lighting the interior while controlling energy loss and gain from the building comprising large area, thin radiation collecting means concentrating radiation onto narrow light guide means; light guide means for transmitting the radiation through exterior surfaces, insulation and the like to useful locations within the building and means at the terminus of the light guide for distributing the radiation. One embodiment forms a complete roofing system. Another embodiment forms an exterior wall treatment. Another embodiment provides improved solar heated greenhouses.

Abstract: Automatic analyzer including controlled dispensing and mixing of sample and reagents. Novel electroseparation process for separating certain molecules from other molecules in flowing streams. Apparatus for adding substrate, mixing and temperature control of separated isoenzyme streams. Apparatus for directly measuring change of optical properties of the streams with direct readout of results.

Abstract: There is herein disclosed a rack for test tubes and the like comprising means for maintaining said tubes in one of two alternating stable operating positions to record operations performed. A third optional grasping position holds tubes for such purposes as shipping, inverting or water bath incubation.

Abstract: Method and apparatus for characterizing a population of cells or particles such as blood cells or viruses by automatic means in a flowing stream which comprises: Novel suspending and dispensing means; controlled dispensing of a plurality of portions of the sample population; modification of the suspending milieu, mixing each portion with a different test reagent to elucidate a particular character of the sample; novel electrical separation means; separation of components of said mixture into different streams by said separation means; means for serially measuring properties of at least one of said separated streams to provide a series of measurements relating the reaction of the population to a plurality of different reagents for detailed characterization of said population.

Abstract: Hypodermic needle protection means comprising in an embodiment for vacuum tube sampling: a first needle slidably contained within a second needle, and firmly fastened therein by fastening means. Said fastening means can be overcome by forcing the point of the first needle against a hard surface to move said outer needle over said inner needle thereby covering its point. In an embodiment for a hypodermic needle comprising: a needle slidably contained within a housing and firmly fastened therein by fastening means. Said fastening means can be overcome by forcing the point of said needle against a hard surface to move said housing over said needle, thereby covering its point.

Abstract: Automatic continuous competitive binding analyzer comprising: controlled combination and incubation of ligand, labeled ligand, and ligand specific binding agent; isolation of serial samples by spacer fluid; light absorbing agent for identifying portions of stream; light activated fluid control directing fluid flow and processing; separation of bound ligand from unbound ligand; novel electroextraction for separating certain molecules in flowing stream; serially introducing separated portions of stream into label measuring device. Use of a plurality of static detectors to reduce average processing time below radioactivity measurement time when label is radioactive.

Abstract: Method and apparatus for analysis of certain molecules in the presence of other molecules in a flowing stream which comprises:Controlled dispensing of sample and reagents into a flowing stream; novel electrical separation apparatus; separation of certain molecules in said sample stream into other streams by said separation means; and means for serially measuring properties of said separated molecules for quantitation of the original sample.

Abstract: Continuous enzyme analyzer including dispensing of samples, reagents, and wash liquid, and separation of certain molecules into multiple individual streams, and optical flow cell for serial measurements of those multiple streams at progressively greater time intervals. Serial temperature adjustment of the streams to conserve reagents. Improved optical cell structure intergrating mixing, temperature control, and multiple optical flow paths each providing sensing of a portion of the stream at progressively greater time intervals in a single laminated apparatus.

Abstract: A micro-hemostat especially useful for microsurgery includes a T-shaped member having a highly flexible, double walled tubular bar. The tubular stem of the T-shaped member is connected at one end to the outer wall of the bar and it communicates with an annular space between the walls of the bar. The other end of the stem is connected and communicates with a pressure bulb containing a pressurizing fluid to form a completely closed fluid system. The outer wall of the bar includes cuff portions of highly elastic material adjacent each end of the bar and the inner wall of the bar is a tube of relatively inelastic material. In use, the highly flexible, unpressurized bar is introduced into a blood vessel through an incision using the stem and the pressure bulb as a handle. The bar is then pressurized by squeezing the pressure bulb to inflate the cuff portions to form seals with the inner wall of the blood vessel and to rigidize the normally highly flexible portions of the bar intermediate the cuff portions.

Abstract: Improved apparatus for combined collection of an exact fraction of each of a plurality of urine voidings in a common storage container. Provision is made for dividing each voiding into a small aliquot portion and a balance portion further provision is made for storing a plurality of said aliquots in common storage; and for discarding said balance portion in a convenient fashion.

Abstract: A system for identifying items is provided comprising: an indicia bearing support, supporting a plurality of corresponding indicia bearing, pressure sensitive adhesive labels. Means are provided for exposing the adhesive surface of said labels while labels remain detachably connected to the support. Means are provided for affixing said labels to items to be identified while labels remain detachably connected to the support.

Abstract: The present invention relates to a new and improved tomographic visualization apparatus and method. The apparatus includes a camera with a stationary collimator of a radiation dense material with channels therein for collecting radiation from a body which passes through the channels in the collimator. The radiation is thereafter detected and the signal information is processed so as to provide images of selected depths within the body. The stationary collimator includes a plurality of matching sections wherein, the center lines of the holes or channels in each sector are parallel to each other and the angular position of their center lines are at a sloping angle in relation to the surface plane of the scintillation crystal of the camera. The center lines of the channels in one sector are not parallel to the center lines of those of any other sector but slope toward the common plane of intersection along the camera axis to provide matching tomographic collimator sections.

Abstract: The present invention relates to a new and improved tomographic visualization apparatus and method. The apparatus includes a camera with a stationary collimator of a radiation dense material with channels therein for collecting radiation from a body which passes through the channels in the collimator. The radiation is thereafter detected and the signal information is processed so as to provide images of selected depths within the body. The stationary collimator includes a plurality of matching sections wherein, the center lines of the holes or channels in each sector are parallel to each other and the angular position of their center lines are at a sloping angle in relation to the surface plane of the scintillation crystal of the camera. The center lines of the channels in one sector are not parallel to the center lines of those of any other sector but slope toward the common plane of intersection along the camera axis to provide matching tomographic collimator sections.