Patent application number | Description | Published |
20080269594 | APPARATUS AND METHOD FOR IMAGE ALIGNMENT FOR COMBINED POSITRON EMISSION TOMOGRAPHY (PET) AND MAGNETIC RESONANCE IMAGING (MRI) SCANNER - A phantom and method are provided for co-registering a magnetic resonance image and a nuclear medical image. The phantom includes a first housing defining a first chamber configured to receive a magnetic resonance material upon which magnetic resonance imaging can be performed in order to produce the magnetic resonance image. The phantom also includes three or more second housings configured to be attached to the first housing, where the second housings each define a second chamber configured to receive a radioactive material upon which nuclear imaging can be performed in order to produce the nuclear medical image and upon which the magnetic imaging can be performed in order to produce the magnetic resonance image. The first chamber has a volumetric capacity that is larger than a volumetric capacity of each second chamber. | 10-30-2008 |
20090108206 | MR-Compatible Blood Sampling System For PET Imaging Applications in Combined PET/MR Imaging System - An automated blood sampling system for PET imaging applications that can be operated in or very near to the field of view (FOV) of an MR scanner, such as in a combined MR/PET imaging system. A radiation detector uses APDs (avalanche photo-diodes) to collect scintillation light from crystals in which the positron-electron annihilation photons are absorbed. The necessary gamma shielding is made from a suitable shielding material, preferably tungsten polymer composite. Because the APDs are quite small and are magnetically insensitive, they can be operated in the strong magnetic field of an MR apparatus without disturbance. | 04-30-2009 |
20090114827 | Method for stabilizing the gain of a pet detection system - A method is disclosed for stabilizing the gain of a PET detection system with a cooling unit. The method includes determining the temperature of at least one component of the PET detection system, comparing the actual gain with a reference value, and actuating the cooling unit to influence the temperature such that the gain tends to the reference value. In at least one embodiment, the reference value is determined by determining the temperature of the at least one component during a test measurement, determining the gain during the test measurement, determining a functional dependence of the gain on the temperature, and selecting the reference value based on the gain to be stabilized. Advantageously, in at least one embodiment the gain can be kept constant using the described method in a simple manner, with the influence of the temperature of the components being taken into account. | 05-07-2009 |
20090221903 | Magnetic resonance device having a pet unit - In a magnetic resonance device having a PET unit for acquiring positron emission tomography data and a gradient coil, the PET unit includes a carrier tube on which at least one PET detector is arranged. In at least one embodiment, the carrier tube is arranged inside the gradient coil and is displaceably mounted in such a way that access to the PET detector is made possible by its displacement. This allows easy access to the PET detector during maintenance activities. | 09-03-2009 |
20090272517 | Facility for cooling a detection device and detection device - A facility is disclosed for cooling a detection device. In at least one embodiment, the facility includes at least one first cooling unit, through which a thermal contact to the detection device is able to be established and through which heat arising during operation of the detection device is able to be removed; and at least one second cooling unit, which is arranged so that heat from the environment of the detection device can be discharged through it. In at least one embodiment, this has the advantage of largely shielding the first cooling unit from incident heat which allows the detection device to be efficiently cooled. | 11-05-2009 |
20140021953 | METHOD FOR ELECTROMAGNETIC SHIELDING FOR A MAGNETIC RESONANCE SYSTEM AND CORRESPONDINGLY SHIELDED DEVICE - In one embodiment, an electromagnetic shielding of a device is disclosed for a magnetic resonance system. The device is shielded via a conductive layer which surrounds an inner part of the device in such a manner that an electrical current path completely around the inner part can be formed in the layer. The layer is arranged between a housing of the device, surrounding the inner part, and the inner part. In another embodiment, an electromagnetic shielding of a device is disclosed for a magnetic resonance system, wherein the device is shielded via a conductive layer which surrounds the device in such a manner that an electrical current path completely around the device is formed. In this situation, the device having the layer is mounted by way of projections on the magnetic resonance system. Each projection has a contact surface with the layer, at which the respective projection contacts the layer. | 01-23-2014 |
Patent application number | Description | Published |
20100067001 | OPTICAL MASK FOR DETECTOR OPTIMIZATION - An optical mask positioned on a scintillator array. The optical mask includes a reflective layer. One or more windows can be positioned on the surface of optical mask. | 03-18-2010 |
20110167857 | MEDICAL IMAGE RECORDING DEVICE FOR MAGNETIC RESONANCE AND PET IMAGING - A medical image recording device includes a device for magnetic resonance imaging including a cylindrical gradient coil with coil conductors arranged on multiple radial levels; and a device for PET imaging including multiple PET detectors arranged in a cylindrical arrangement in the interior of the gradient coil. In at least one embodiment, at least one cooling device is provided between the coil conductor lying on the innermost radial level and the PET detectors arranged in annular form on at least one radial level. | 07-14-2011 |
20120060748 | Method and apparatus for continuous crystal growth - A Czochralski (“CZ”) single-crystal growth process system continuously grows crystal boules in a chamber furnace during a single thermal cycle. Finished boules are transferred from the furnace chamber, without need to cool the furnace, to an adjoining cooling chamber for controlled cooling. Controlled cooling is preferably accomplished by transporting boules along a path having an incrementally decreasing temperature. In order to maximize crystal boule yield in a single furnace thermal cycle, the crucible assembly may be recharged with crystal growth aggregate and/or slag may be discharged during the crystal boule growth process without opening the furnace. | 03-15-2012 |
20120091341 | Cooling Unit for Cooling a Detection Device in an Imaging System and Detection Devices and Imaging Systems Therefrom - A cooling unit operating in a magnetic field is provided. The cooling unit includes an encasement body having a non-electrically conductive composition and defining a first and second opposing planar surface. The cooling unit also includes a metal conduit disposed in the encasement body substantially parallel to the first surface. Additionally, the cooling unit also includes a series of metal fins disposed in the encasement body and extending from the conduit. In some configurations the fins can be substantially parallel to the first surface. Further, in some configurations, non-electrically conductive inserts having a thermal conductivity greater than a thermal conductivity of the encasement body can be disposed in a portion of the encasement body between one of the first and second surfaces and one or more of the metals fins. | 04-19-2012 |
20130184559 | Magnetic Resonance Imaging Compatible Positron Emission Tomography Detector - A compact magnetic resonance imaging compatible positron emission tomography detector. The detector has integrated mechanical and electrical subcomponents. The detector uses a cooling channel which does not interfere with magnetic resonance imaging. The layout and selection of electrical subcomponents of the detector, along with a magnetic resonance compatible cooling strategy, enables the detector to function in a magnetic resonance imaging environment. | 07-18-2013 |
20150073272 | In-Line PET Detector Configuration for a Combined PET and CT Imaging System - A positron emission tomography (PET) detector configuration for a combined PET and computed tomography (CT) imaging system, wherein the CT system includes an annular cavity. The configuration includes a backplane having a neutral axis and an aperture. In addition, the configuration includes at least one PET detector located about the aperture, wherein a center of mass of the at least one PET detector is in-line with the neutral axis and wherein a portion of the at least one PET detector is located in the annular cavity thereby reducing a footprint of the combined PET and CT imaging system. Further, the location of the at least one PET detector reduces the strength needed for maintaining structural integrity of the backplane. | 03-12-2015 |
Patent application number | Description | Published |
20090011116 | REDUCING TEMPLATE WITH COATING RECEPTACLE CONTAINING A MEDICAL DEVICE TO BE COATED - An apparatus and a method for applying a coating to a medical device such as a stent, balloon, or catheter, shortly before insertion or implantation are described. The apparatus and method produce uniform consistent coverage of the medical device in a predictable, repeatable and controllable manner and reduce the need for preservative components in the coating or for excessive curing or hardening of the coating. | 01-08-2009 |
20090047414 | METHOD AND APPARATUS FOR APPLICATION OF A FRESH COATING ON A MEDICAL DEVICE - A method, a kit, and an apparatus provide a coating on an implantable medical device. The apparatus includes housing, a sealed reservoir chamber disposed in the housing, a reducing template, and a reservoir access port. The sealed reservoir contains the coating material. The reducing template is sized to receive a medical device therethrough for application of the coating material. A seal breaching mechanism can be provided and adapted to breach the sealed reservoir upon activation of the apparatus. The reservoir access port, which is disposed in the housing, is adapted to fluidly couple the reducing template with the reservoir chamber upon activation of the apparatus for coating the medical device. | 02-19-2009 |
20090208552 | CROSS-LINKED FATTY ACID-BASED BIOMATERIALS - Fatty acid-based, pre-cure-derived biomaterials, methods of making the biomaterials, and methods of using them as drug delivery carriers are described. The fatty acid-derived biomaterials can be utilized alone or in combination with a medical device for the release and local delivery of one or more therapeutic agents. Methods of forming and tailoring the properties of said biomaterials and methods of using said biomaterials for treating injury in a mammal are also provided. | 08-20-2009 |
20100233231 | USE OF CRYOGENIC PROCESSING TO OBTAIN A SUBSTANTIALLY-THICKENED FORMULATION - The present invention related to substantially-thickened therapeutic formulation comprising an oil-based composition and a therapeutic agent, wherein the therapeutic agent is of a reduced particle size. | 09-16-2010 |
20130331868 | ROLLED FLEXIBLE IMPLANTS AND DEVICE FOR DEPLOYMENT THEREOF - A deployment device for a flexible implant includes a housing and one or two chambers formed therein. When two chambers are included, the housing can have two elongate openings formed in its outer sides, each providing side access to one of the chambers, and the flexible implant can be rolled into a double-rolled configuration and placed in the chambers of the deployment device in such a way that a middle portion of the flexible implant is external to the housing. When the flexible implant is rolled and loaded in the deployment device, the flexible implant can extend out through open end(s) of the chamber(s) or can be encapsulated within the chamber(s). The flexible implant can be provided separate from the deployment device. The flexible implant can include a flexible base sheet including a body portion and a tab. A flexible separable layer can be removably disposed on the body portion. | 12-12-2013 |