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| Number | Title | Issue Date |
| 5388580 | Head holder for magnetic resonance imaging/spectroscopy system A head holder with the following characteristics: it is compatible with MR (no metallic parts); it is adjustable for use with adults and children; it does not produce any degradation of imaging or spectroscopy raw data; it does not induce claustrophobia; ... | 02/14/1995 |
| 5375597 | Digital magnetic resonance shock-monitoring method A method for monitoring the pH of a patient includes the step of providing a magnetic resonance system having a magnet with a bore configured to receive a portion of a finger of a patient without receiving a substantially larger portion of the body of the... | 12/27/1994 |
| 5348012 | Magnetic resonance imaging apparatus and method for forming an image of an artery A gradient field is applied in a coronal scheme such that a slice region along the flowing direction of a blood vessel, i.e., along the body axis is set as an imaging area. Of regions adjacent to the imaging region in the body axis direction, a region inc... | 09/20/1994 |
| 5348010 | Intracavity probe and interface device for MRI imaging and spectroscopy An insertable pickup probe and interface network for magnetic resonance imaging and spectroscopy. The pickup probe in the preferred embodiment is for use in imaging the male prostate and comprises an elongated shaft supporting a patient interface balloon ... | 09/20/1994 |
| 5329924 | Sequential imaging apparatus For use in medical imaging, an indexing assembly provides repeatable indexing movement of a joint in predetermined angular increments between sequential index positions. Means are provided for limiting movement of the joint to the next selected index posi... | 07/19/1994 |
| 5320103 | Permanent magnet arrangement A permanent magnet assembly used for creating a uniform magnetic field across a portion of an air gap has a permanent magnet grouping, including a first, principal magnet, a pole piece contacting said principal magnet, and a set of auxiliary magnets exten... | 06/14/1994 |
| 5307039 | Frustoconical magnet for magnetic resonance imaging An open magnet having a frustoconical shaped inner bore is provided for MR imaging. The magnet has a plurality of axisymmetric superconducting coils of differing diameters which are disposed along an axis in order of successively increasing diameters so a... | 04/26/1994 |
| 5305749 | Side-loading of patient into MRI C-magnet while maintaining adjacent open accessibility to patient Special patient handling apparatus and method retains increased accessibility advantages for open C-magnet MRI system architecture. The required volume for an accompanying RF shielded gantry room may also be minimized. The special patient transport mechan... | 04/26/1994 |
| 5277184 | MRI sound system transducer and headset A MRI sound system transducer and headset provides music and operator communication for the Magnetic Resonance Imaging (MRI) patient. The inventive system includes a pneumatic, non-magnetic transducer which converts electrical output from a music source o... | 01/11/1994 |
| 5218964 | Method for providing accurate reference markers in magnetic resonance images A method for providing reference markers in magnetic resonance (MR) images which are highly discernible and accurately defined in the MR image. The method may be carried out with short imaging times. The reference markers have a volume containing NMR acti... | 06/15/1993 |
| 5211166 | Operative instrument providing enhanced visibility area in MR image An operative instrument for the examination of an object, for example a biopsy tube or a capsule of a radioactive substance intended for radiation therapy. A part of the operative instrument, the active part, is adapted to be detected by NMR methods, such... | 05/18/1993 |
| 5207224 | Magnetic resonance apparatus A magnetic resonance imaging apparatus using a transverse magnet system (29) and having a patient handling arrangement (31, 33) which allows transport of a patient into the magnet system by first moving the patient in a direction (A) at right angles to th... | 05/04/1993 |
| 5112294 | Method and system for facilitating chamber-type medical procedures Medical patients who suffer from claustrophobia or other forms of fear or anxiety which make it difficult or impossible for them to undergo chamber-type analyses such as magnetic resonance imaging and CAT scanning, are prepared for such procedures by plac... | 05/12/1992 |
| 5072732 | NMR instrument for testing for fluid constituents There is disclosed herein a nuclear magnetic resonance apparatus for testing body fluids for a constituent, for example, blood for glucose. The apparatus includes a principal magnet, a magnetizable coil, and a circuit for energizing the coil for energizin... | 12/17/1991 |
| 5065760 | Cable guide for a nuclear magnetic resonance tomography apparatus A cable guide for use in a nuclear magnetic resonance tomography apparatus is provided for cable for making electrical connections between devices secured to a patient bed and devices disposed outside of the examination space. The cable guide is a grounde... | 11/19/1991 |
| 5016638 | Vibration control in NMR magnet structures A medical NMR scanner adapted to be supported on the floor of a building or other structure by vibration limiting supports is disclosed. The scanner includes a frame defining a patient-receiving space adapted to receive a human body. It also includes a pa... | 05/21/1991 |
| 5005578 | Three-dimensional magnetic resonance image distortion correction method and system A method and system in Nuclear Magnetic Resonance (NMR) medical imaging systems corrects for three-dimensional distortions arising from the apparatus and patient specific distortions using a phantom and a helmet, both of which have fiducial markers in a t... | 04/09/1991 |
| 4998976 | Permanent magnet arrangement A permanent magnet assembly used for creating a uniform magnetic field across a portion of an air gap has a permanent magnet grouping, including a first, principal magnet, a pole piece contacting said principal magnet,and a set of auxiliary magnets extend... | 03/12/1991 |
| 4985678 | Horizontal field iron core magnetic resonance scanner A patient is disposed on a patient couch (A) and positioned longitudinally and vertically to bring a region of interest within the patient into a gap between a pair of magnetic pole pieces (20, 22). Magnetic field driver(s) (50', 50, 52) generates a magne... | 01/15/1991 |
| 4953555 | Permanent magnet structure for a nuclear magnetic resonance imager for medical diagnostics A nuclear magnetic resonance device for use in diagnostic procedures on the uman body is provided and comprises longitudinally extending cylindrical or rectangular crossectioned rare earths permanent magnets provided with cladding magnets extending longitu... | 09/04/1990 |
| 4951672 | Controlled impedance monitoring lead wires An electrode assembly, particularly useful in nuclear magnetic resonance apparatus, for sensing a physical characteristic of a live study subject includes an electrode positioned in electrical contact with the subject for sensing the physical characterist... | 08/28/1990 |
| 4875486 | Instrument and method for non-invasive in vivo testing for body fluid constituents There is disclosed herein a nuclear magnetic resonance apparatus for testing body fluids for a constituent, for example, blood for glucose. The apparatus includes a principal magnet, a magnetizable coil, and a circuit for energizing the coil for energizin... | 10/24/1989 |
| 4771785 | Magnetic resonance imaging apparatus and three-axis patient positioning assembly for use therewith Magnetic resonance imaging apparatus having a structure with an opening adapted to receive an object to be imaged. An object platform is provided which is sized so that it can be moved into the opening in the magnet structure. Structure is provided for su... | 09/20/1988 |
| 4534358 | Nuclear magnetic resonance imaging apparatus A nuclear magnetic resonance imaging apparatus for medical use wherein a patient to be examined is positioned on support means (1) in a sitting posture and the required magnets (7, 11) and RF coils (13, 15) are arranged so as to allow easy movement of the... | 08/13/1985 |
