Patent application number | Description | Published |
20090305223 | METHOD AND APPARATUS FOR EVALUATIING INTERACTIONS IN ISOLATED TISSUE - An apparatus for evaluating the effects of stimuli on tissue includes an environment for holding at least a sample of the tissue from a living person. The apparatus also has a first source connected to the environment for delivering nutrients to the tissue to maintain the tissue in a viable condition for more than one week. A second source is connected to the environment for delivering a biologically active agent to the tissue. The biologically active agent is capable of inducing carcinogenesis in the tissue when metabolized. An effluent outlet is connected to the environment to remove effluent from the environment. | 12-10-2009 |
20100036261 | METHOD AND DEVICE FOR IMAGE GUIDED SURGERY - A fluorometer includes a light source to generate excitatory light toward a tissue, the tissue generating fluorescent light in response to the excitatory light. The fluorometer also includes a light sensor to receive the fluorescent light and generate a digital signal. A processor is connected to the light sensor to receive the digital signal and generate a digital image, and a display displays the digital image. The tissue generates fluorescent light as a result of excitation of at least one intrinsic tissue metabolic product. A method for distinguishing between viable and non-viable tissue using the fluorometer also is described. | 02-11-2010 |
20110070157 | RADIOMETAL-LABELED AMINO ACID ANALOGS, IMAGING AND THERAPEUTIC AGENTS INCORPORATING THE SAME, AND METHODS USING THE SAME - An amino acid analog is provided, in syn-stereoisomeric form, anti-stereoisomeric form, or a combination thereof. The amino acid analog includes a cyclobutane ring with at least one of an amine group and a carboxyl group attached to one carbon node of the cyclobutane ring. A chain of moieties X, Y, and Z attached to one of remaining three carbon nodes of the cyclobutane ring. X is a chelating agent selected from a group comprising DCTA, DOTA, DTPA, EDTA, NOTA, PCTA, and TETA. Y is a linking moiety selected from a group comprising —NH—CO— and —NH-p-CHSN-Bn- where the linking moiety facilitates incorporation of the chelating agent into the amino acid analog. Z is a metal radioisotope selected from a group comprising Cu-60, Cu-61, Cu-62, Cu-64, Cu-67, Ga-67, Ga-68, Y-86, Y-88, Y-90, Sr-85, Sr-89, Gd-153, Gd-157, Sm-153, Lu-177, W-185, Re-186, Re-188, and Ir-192. | 03-24-2011 |
20110089947 | APPARATUS AND METHOD FOR DECREASING BIO-EFFECTS OF MAGNETIC GRADIENT FIELD GRADIENTS - A magnetic field generator includes a power source and a segmented or un-segmented coil connected to the power source to generate a time-varying magnetic field. Energy is applied to the coil so that the coil generates a time-varying magnetic field gradient with a magnitude of at least 1 milliTesla per meter and a rise-time of less than 10 microseconds. The coil may be comprised of overlapping, non-overlapping or partially overlapping coil segments that may individually energized to further improve the operating characteristics of the coil to further decrease bio-effects in magnetic resonance imaging through the use of reduced pulse lengths and multi-phasic magnetic gradient pulses. | 04-21-2011 |
20110096966 | METHOD AND APPARATUS FOR DETECTING BONE VARIABILITY WITH ULTRAVIOLET LIGHT - A method and apparatus for assessing the time since demise of one or more tissue components, comprising a source of radiation to generate excitatory radiation toward a tissue component, the tissue component generating responsive radiation in response to the excitatory radiation, a sensor to receive the responsive radiation from the tissue component and create a signal indicating the rate of change (over time) of the responsive radiation, a processor connected to the sensor to receive the signal from the sensor, and wherein the processor evaluates the received signal and provides information whereby a user can assess the time since demise of the tissue component based on responsive radiation generated by the tissue component as a result of excitation of at least one intrinsic tissue component metabolic product. | 04-28-2011 |
20110182401 | RECONSTRUCTION OF LINEARLY MOVING OBJECTS WITH INTERMITTEN X-RAY SOURCES - A method and apparatus for performing computed tomography in medical imaging through reconstruction of a data set containing projections obtained during relative motions a container or body of interest with respect to an x-ray source and/or x-ray detector panel. Strobing of the data is implemented through one or more methods to include pulsing of the x-ray source, intermittent blanking of the x-ray detector panel, or intermittent processing of data collected from the detector panel to simulate blanking. The invention is utilized to significantly improve contrast by taking advantage of the pulsed nature of the source to implement three-dimensional reconstruction. | 07-28-2011 |
20110192984 | METHOD AND EQUIPMENT FOR PRODUCING DRIFT DETECTORS - Silicon drift detectors are produced for location and energy measurement as well as spectroscopic applications by depositing a single high quality dielectric film followed by deposition of at least one low quality dielectric film. | 08-11-2011 |
20120132814 | RADIATION DETECTION DEVICE, SYSTEM AND RELATED METHODS - An omni-directional sensor device is provided for detecting radiation emission sources, such as nuclear and atomic weapons and dirty bombs. The omni-directional sensor device is constructed as a three-dimensional structure formed of a plurality of walls of gamma ray detector arrays. The walls face in multiple directions to establish omni-directional sensing of incident gamma rays from substantially all directions. As constructed, a first wall of the device intercepts an incident gamma ray at a first location. The gamma ray experiences a Compton scattering effect whereby a deflected gamma ray is emitted into the inner chamber of the device before intercepting a second wall of the device at a second location. The first and second locations can be used to trace the location of the emission source. Also provided are radiation detection systems including the omni-directional sensor devices, and methods of locating a radiation emission source. | 05-31-2012 |
20120223711 | APPARATUS AND METHOD FOR DECREASING BIO-EFFECTS OF MAGNETIC GRADIENT FIELD GRADIENTS - An apparatus and a method for increasing the magnitude of the magnetic gradient for MRI without causing nerve stimulation. As an example, the short ramp time of magnetic gradients, for example less than 150 microseconds is contemplated. These short ramp-time magnetic gradients are used for the imaging of structures with short relaxations times, such as teeth, without causing nerve stimulation. The apparatus comprises a generator of magnetic gradients of at least 1 milliTeslas in magnitude with at least one gradient ramp time shorter than 150 microseconds and which induces no peripheral nerve stimulation. | 09-06-2012 |