Patents by Inventor Arnulf Oppelt
Arnulf Oppelt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7411398Abstract: A magnetic resonance apparatus has a transmission and reception coil system and a gradient coil system that is designed to generate a gradient field that is periodic in one spatial direction. The gradient field and/or the examination subject can be displaced in the spatial direction of the periodicity to generate a relative position change between the periodic gradient field and an examination subject, and the transmission and reception coil system comprises individually-activatable coil arrays to allow data to be acquired to fill in gaps or resolve ambiguous data entries that occur due to the gradient field being periodic.Type: GrantFiled: May 17, 2006Date of Patent: August 12, 2008Assignee: Siemens AktiengesellschaftInventors: Rainer Kuth, Arnulf Oppelt
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Patent number: 7265546Abstract: In a method and for MR apparatus PPA imaging with radial data acquisition in magnetic resonance tomography, k-space is under-scanned by acquiring a number of projections ? with a coil array of M component coils, a shift operator C(±n?k) is determined for a projection ?i on the basis of measured magnetizations along a projection ?i±?0 that encompasses with ?i an angle ?0, with n=1, 2, . . . , M?1, the shift operator C(±n?k) is applied to individual points of projection ?i in order to obtain calculated projection points, the determination and the application of the shift operator C(±n?k) are repeated for all projections ?, and an image is reconstructed in the spatial domain on the basis of the projections, which have been completed purely computationally.Type: GrantFiled: April 29, 2005Date of Patent: September 4, 2007Assignee: Siemens AktiengesellschaftInventors: Stephan Kannengiesser, Thomas Mertelmeier, Arnulf Oppelt
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Patent number: 7216383Abstract: A patient support device which can be connected to patient placement devices of medical examination or treatment equipment, for example an MRI device, an X-ray machine, or of ambulances. The patient support device supports a patient during medical examination and treatment. The patient support device has a structural rigidity that is less than a minimal rigidity that enables the patient support device to be self-supporting while the patient is resting thereon. Such a patient support device can be designed in a simple manner in such a way that it can be used in MRI devices, as well as in devices of other types, and can be transferred between the devices without repositioning of the patient on different support devices.Type: GrantFiled: August 27, 2004Date of Patent: May 15, 2007Assignee: Siemens AktiengesellschaftInventors: Dieter Heinl, Arnulf Oppelt, Markus Petsch, Johann Seissl, Kerstin Waldbach
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Publication number: 20060273796Abstract: A magnetic resonance apparatus has a transmission and reception coil system and a gradient coil system that is designed to generate a gradient field that is periodic in one spatial direction. The gradient field and/or the examination subject can be displaced in the spatial direction of the periodicity to generate a relative position change between the periodic gradient field and an examination subject, and the transmission and reception coil system comprises individually-activatable coil arrays to allow data to be acquired to fill in gaps or resolve ambiguous data entries that occur due to the gradient field being periodic.Type: ApplicationFiled: May 17, 2006Publication date: December 7, 2006Inventors: Rainer Kuth, Arnulf Oppelt
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Publication number: 20050251023Abstract: In a method and for MR apparatus PPA imaging with radial data acquisition in magnetic resonance tomography, k-space is under-scanned by acquiring a number of projections ? with a coil array of M component coils, a shift operator C(±n?k) is determined for a projection ?i on the basis of measured magnetizations along a projection ?i±?0 that encompasses with ?i an angle ?0, with n=1, 2, . . . , M?1, the shift operator C(±n?k) is applied to individual points of projection ?i in order to obtain calculated projection points, the determination and the application of the shift operator C(±n?k) are repeated for all projections ?, and an image is reconstructed in the spatial domain on the basis of the projections, which have been completed purely computationally.Type: ApplicationFiled: April 29, 2005Publication date: November 10, 2005Inventors: Stephan Kannengiesser, Thomas Mertelmeier, Arnulf Oppelt
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Publication number: 20050060804Abstract: A patient support device which can be connected to patient placement devices of medical examination or treatment equipment, for example an MRI device, an X-ray machine, or of ambulances. The patient support device supports a patient during medical examination and treatment. The patient support device has a structural rigidity that is less than a minimal rigidity that enables the patient support device to be self-supporting while the patient is resting thereon. Such a patient support device can be designed in a simple manner in such a way that it can be used in MRI devices, as well as in devices of other types, and can be transferred between the devices without repositioning of the patient on different support devices.Type: ApplicationFiled: August 27, 2004Publication date: March 24, 2005Inventors: Dieter Heinl, Arnulf Oppelt, Markus Petsch, Johann Seissl, Kerstin Waldbach
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Patent number: 6710686Abstract: In a method for the fast acquisition of a magnetic resonance image, magnetic resonance signals from an imaging region are conditioned with magnetic gradient fields that define a spatial frequency space so that the spatial frequency domain is occupied with magnetic resonance signals having trajectories that are radially directed and proceed through a projection center, and the imaging region is divided into sub-regions with an antenna of an antenna array respectively allocated to each sub-region. The antennas have respective positions relative to the projection center such that the antennas simultaneously receive the magnetic resonance signals and form reception signals from the magnetic resonance signals according to their sensitivity. The number of radially directed trajectories is of only such a size so that the sub-zones regardless of their spatial position in the imaging zone from the respective reception signals can be unambiguously reconstructed.Type: GrantFiled: April 19, 2002Date of Patent: March 23, 2004Assignee: Siemens AktiengesellschaftInventors: Thomas Mertelmeier, Arnulf Oppelt
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Publication number: 20020175683Abstract: In a method for the fast acquisition of a magnetic resonance image, magnetic resonance signals from an imaging region are conditioned with magnetic gradient fields that define a spatial frequency space so that the spatial frequency domain is occupied with magnetic resonance signals having trajectories that are radially directed and proceed through a projection center, and the imaging region is divided into subregions with an antenna of an antenna array respectively allocated to each sub-region. The antennas have respective positions relative to the projection center such that the antennas simultaneously receive the magnetic resonance signals and form reception signals from the magnetic resonance signals according to their sensitivity. The number of radially directed trajectories is of only such a size so that the sub-zones regardless of their spatial position in the imaging zone from the respective reception signals can be unambiguously reconstructed.Type: ApplicationFiled: April 19, 2002Publication date: November 28, 2002Inventors: Thomas Mertelmeier, Arnulf Oppelt
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Patent number: 6421551Abstract: In a system and method for the registration of images of a subject using magnetic resonance, the positions of one or more markings arranged at the subject and movable together therewith are detected with an acquisition system operated independently of and in parallel with the diagnostic image generating and registration operation of the magnetic resonance system. These positions serve as a criterion for identifying the orientation of the subject relative to the diagnostic imaging system, and the tomogram plane of interest is re-adjusted dependent on the positions of the markings.Type: GrantFiled: August 20, 1999Date of Patent: July 16, 2002Assignee: Siemens AktiengesellschaftInventors: Rainer Kuth, Arnulf Oppelt, Theodor Vetter
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Patent number: 6317091Abstract: An apparatus for inductively coupling a nuclear magnetic resonance signal into a reception antenna has three resonant coil arrangements that are decoupled from one another and which have respective imaging areas oriented perpendicularly to one another and at least partially overlapping. A medical intervention instrument carries such an apparatus for inductive coupling arranged at its invasive section.Type: GrantFiled: September 28, 1999Date of Patent: November 13, 2001Assignee: Siemens AktiengesellschaftInventor: Arnulf Oppelt
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Patent number: 6285894Abstract: The body part under examination has its thickness modulated by mechanical influence with at least two pressure modulation frequencies. At least four measured signals that are dependent both on the influence of the light as well as on the mechanical thickness change are acquired by irradiating the body part with light.Type: GrantFiled: September 27, 1999Date of Patent: September 4, 2001Assignee: Siemens AktiengesellschaftInventors: Arnulf Oppelt, Joachim Kestler
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Patent number: 6195578Abstract: A magnetic resonance system with a patient bearing table with an interchangeable-panel receiving mechanism, which table can be used as an operating table. The patient bearing table is mounted at an operating column, which is arranged in front of an insertion end of the magnetic resonance apparatus, such that this table can be swivelled about a vertical axis of rotation.Type: GrantFiled: May 3, 1999Date of Patent: February 27, 2001Assignee: Siemens AktiengesellschaftInventors: Peter Distler, Rainer Kuth, Arnulf Oppelt, Theodor Vetter, Herbert Weiler
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Patent number: 6005908Abstract: An X-ray computed tomography apparatus has a radiation detector composed of X-ray converters so that the scattering of light in a scintillator or the inductive disturbance in a directly converting semiconductor is minimized or eliminated. Each X-ray converter, e.g. a scintillator is in fixed contact with a number of signal converters, e.g. photodiodes. From the output signals of the signal converters, the unsharpness can be calculated and then compensated.Type: GrantFiled: March 24, 1998Date of Patent: December 21, 1999Assignee: Siemens AktiengesellschaftInventors: Arnulf Oppelt, Karl Stierstorfer
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Patent number: 5917414Abstract: A body-worn monitoring system for obtaining and evaluating data from a person includes at least one sensor carried by the person to be monitored, and an evaluation unit worn by the person to be monitored which is supplied from a signal from the sensor. The evaluation unit either independently, or in communication with a remote computer, evaluates the data and initiates the generation of a message which is communicated to the monitored person by the evaluation unit. If data which is typical of the daily behavior pattern of the person fails to arrive, the person can be reminded of the necessity of undertaking a particular activity.Type: GrantFiled: August 14, 1997Date of Patent: June 29, 1999Assignee: Siemens AktiengesellschaftInventors: Arnulf Oppelt, Manfred Pfeiler
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Patent number: 5759162Abstract: In therapy apparatus for the treatment of tissue in the body of a life form, at least one therapeutic ultrasound transducer emits ultrasound having an effective therapeutic region is provided. The ultrasound intensity in the region of the tissue to be treated is measured. Displacement of the effective therapeutic region and the body of the life form relative to one another ensues on the basis of the measured ultrasound intensity such that at least a part of the tissue to be treated is located in the effective therapeutic region.Type: GrantFiled: December 20, 1996Date of Patent: June 2, 1998Assignee: Siemens AktiengesellschaftInventors: Arnulf Oppelt, Helmut Reichenberger
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Patent number: 5722407Abstract: In an apparatus and method for examining tissue by transillumination of the tissue, light having different, defined wavelengths is emitted from a plurality of monochromatic light sources into tissue under examination, the light emerging from the tissue is detected by a detector arrangement for detecting the parts of the emitted light transmitted by the tissue, and signals from the detector arrangement are supplied to an evaluation unit. The evaluation unit calculates data with respect to the concentration of the different tissue components in the tissue under examination from the different signals on the basis of stored data that correspond to the light absorption of different tissue components.Type: GrantFiled: June 17, 1996Date of Patent: March 3, 1998Assignee: Siemens AktiengesellschaftInventors: Klaus Klingenbeck-Regn, Arnulf Oppelt
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Patent number: 5624382Abstract: In therapy apparatus for the treatment of tissue in the body of a life form, at least one therapeutic ultrasound transducer emits ultrasound having an effective therapeutic region is provided. The ultrasound intensity in the region of the tissue to be treated is measured. Displacement of the effective therapeutic region and the body of the life form relative to one another ensues on the basis of the measured ultrasound intensity such that at least a part of the tissue to be treated is located in the effective therapeutic region.Type: GrantFiled: September 9, 1994Date of Patent: April 29, 1997Assignee: Siemens AktiengesellschaftInventors: Arnulf Oppelt, Helmut Reichenberger
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Patent number: 5349178Abstract: An x-ray image intensifier has an evacuated housing, an input luminescent screen, electron optics, and an image sensor disposed inside the housing at a side of the housing opposite the input luminescent screen. The image sensor is covered by a protective layer which effects a deceleration of the incident electrons, the protective layer being applied on that side of the image sensor facing the input luminescent screen.Type: GrantFiled: June 22, 1993Date of Patent: September 20, 1994Assignee: Siemens AktiengesellschaftInventors: Detlef Mattern, Arnulf Oppelt, Hartmut Sklebitz
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Patent number: 4914681Abstract: A computer tomography apparatus has an annular anode surrounding a volume in which an examination subject is disposed, a source for generating an electron beam, and a coil through which the electron beam passes which deflects the electron beam so as to be incident on a face of the anode and to orbit the examination subject, thereby causing the examination subject to be irradiated in a measuring field from various directions. A control unit is provided for the coil causing the electron beam to be deflected so as to sweep the anode in both the azimuthal and radial directions. The focus of the electron beam on the anode surface thus describes a wave-shaped path, so that the focus path on the anode is lengthened and the thermal load is reduced.Type: GrantFiled: November 16, 1987Date of Patent: April 3, 1990Assignee: Siemens AktiengesellschaftInventors: Klaus Klingenbeck, Arnulf Oppelt
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Patent number: 4825159Abstract: An examination subject is irradiated with a sequence of RF pulses. Negative gradient pulses G.sub.z3 and G.sub.y4, as well as a phase-coding gradient G.sub.x2 are generated preceding each RF pulse. Negative gradient pulses G.sub.z2 and G.sub.y1, as well as a phase-coding gradient G.sub.x1, are generated following each RF pulse. The phase-coding gradient G.sub.x1 is inverted relative to the phase-coding gradient G.sub.x2. The negative gradient pulse G.sub.y1 is followed by a positive gradient pulse G.sub.y2 which serves as a read-out gradient during which a first signal S.sub.1 is received. A positive gradient pulse G.sub.y3 is generated preceding the negative gradient pulse G.sub.y4, the positive gradient pulse G.sub.y3 serving as a read-out gradient during which a second signal S.sub.2 is received. Two signals having different T.sub.2 weighting are thus obtained in each measuring sequence, without extending the measuring time. Two images having different T.sub.Type: GrantFiled: April 19, 1988Date of Patent: April 25, 1989Assignee: Siemens AktiengesellschaftInventors: Arnulf Oppelt, Hubertus Fischer, Helmut Barfuss