Patents by Inventor Wilfried Schnell

Wilfried Schnell 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).

  • Patent number: 7538648
    Abstract: The invention relates to an MRT device with a superconducting magnet whose coils are located in a helium tank and with electronic control components whereby a section of control components is located inside the helium tank or the helium tank has a hollow depression in its outer surface in which a section of the control components is located. The invention also relates to an MRT device with a superconducting magnet whose coils are located in a helium tank which is located in a vacuum vessel and with electronic control components whereby the helium tank has a hollow depression in its outer surface and whereby the vacuum vessel has a further hollow depression in its outer surface which is located in the area of the hollow depression in the helium tank whereby a section of the control components is located in the further hollow depression in the vacuum vessel.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: May 26, 2009
    Assignee: Siemens Aktiengesellschaft
    Inventor: Wilfried Schnell
  • Publication number: 20090091326
    Abstract: A radio-frequency transmission device for a magnetic resonance system to generate magnetic resonance exposures of an examination region of an examination subject, has: a first radio-frequency transmission antenna that emits radio-frequency signals in the examination region, a radio-frequency amplifier that supplies the first radio-frequency transmission antenna, with radio-frequency signals with a predetermined radio-frequency transmission power, and a second radio-frequency transmission antenna fashioned to label a medium flowing in the examination region and/or examination regions via emission of labeling radio-frequency signals, such that the medium can be identified in the generated magnetic resonance exposures of the examination region.
    Type: Application
    Filed: September 26, 2008
    Publication date: April 9, 2009
    Inventors: Hubertus Fischer, Helmut Kess, Georg Rauh, Wilfried Schnell
  • Publication number: 20090051363
    Abstract: A circulator has a ferrite, and the circulator is arranged in the vicinity of a device that produces a static magnetic field in the environment surrounding the device, this static magnetic field giving the circulator a non-reciprocal behavior, with respect to circulation of energy among the gates of the circulator, as a result of interaction of the ferrite with the static magnetic field. A magnetic resonance apparatus embodies such a circulator, and the basic field magnet of this magnetic resonance apparatus generates the static magnetic field.
    Type: Application
    Filed: January 22, 2007
    Publication date: February 26, 2009
    Inventors: Peter Feld, Georg Rauh, Wilfried Schnell, Markus Vester
  • Publication number: 20090027053
    Abstract: An examination platform for a magnetic resonance apparatus has a patient bed for supporting a patient, a local antenna device for acquisition of magnetic resonance signals, and a drive device arranged at the patient bed. The drive device is coupled with the local antenna device. The local antenna device thus can be moved parallel to the longitudinal axis of the patient bed independently of a movement of the patient bed. A magnetic resonance apparatus and a method for acquisition of image data of a patient employ such an examination platform.
    Type: Application
    Filed: July 2, 2008
    Publication date: January 29, 2009
    Inventors: Guenther Decke, Hubertus Fischer, Wilfried Schnell
  • Publication number: 20090010510
    Abstract: In an MR-compatible video system, MR-compatible video eyeglasses are connected to a graphics unit. A position sensor arrangement is connected to the graphics unit to detect the position and/or orientation of the MR-compatible video eyeglasses and/or the position of the pupils of a user. The graphics unit comprises means for producing image signals for MR-compatible video eyeglasses depending on the position and/or orientation of the MR-compatible video eyeglasses and/or the position of the pupils of the user.
    Type: Application
    Filed: July 1, 2008
    Publication date: January 8, 2009
    Inventors: Wilfried Schnell, Stefan Thesen
  • Publication number: 20090009172
    Abstract: An arrangement for supporting a patient in a magnetic resonance apparatus includes a platform that accommodates the patient for a magnetic resonance examination to be conducted, local coils for the magnetic resonance examination and fastening belts, with the fastening belts being fashioned to affix the local coils on the patient and the local coils are at least partially integrated into the respective fastening belts.
    Type: Application
    Filed: July 2, 2008
    Publication date: January 8, 2009
    Inventors: Peter Feld, Hubertus Fischer, Ludwig Kreischer, Wilfried Schnell
  • Patent number: 7446531
    Abstract: A magnetic resonance system has a cylindrical patient support unit in the form of a chamber delimited by a wall with a patient bed, as well as at least one flexible flat local coil element with at least one local coil. The local coil element is attached on two opposite sides to mountings accommodated in the chamber. At least one of the mountings at one side is guided to allow movement along the chamber wall, during which manual or automatic movement the local coil element is moved from a storage position adjacent to the wall of the chamber into a position on the patient, or the local coil element attached to the patient bed is able to be moved manually from a storage position to the side or below the patient bed against a return force, into a position on the patient.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: November 4, 2008
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wilfried Schnell, Markus Vester
  • Publication number: 20080197922
    Abstract: An amplifier device for a mode antenna has a number of amplifiers and a number of outputs. An input signal is fed to each amplifier, which is amplified by the respective amplifier into an amplified input signal. The amplified input signals are fed to an output matrix arranged after the amplifiers. Respective output signals are emitted by the output matrix at the outputs. The output matrix causes each amplified input signal to supply an output signal contribution for each output signal. Each output signal contribution of each output signal has an output-side contribution offset in relation to the corresponding amplified input signal, which depends on the amplified input signal that supplied the output signal contribution, and the output signal to which the output signal contribution contributes. The amplifier device is especially able to be used in a transmit arrangement for radio-frequency signals.
    Type: Application
    Filed: June 22, 2007
    Publication date: August 21, 2008
    Inventors: Wilfried Schnell, Markus Vester
  • Publication number: 20080164960
    Abstract: A resonator for magnetic resonance applications has a conductor element proceeding in an extension direction, that operates with a resonance current at a resonance frequency oscillating therein in the extension direction. The conductor element is tuned to the resonance frequency and has an overall length in the extension direction that is smaller than half of the wavelength of the resonance frequency. The conductor element is a multi-layer conductor with layers that are electrically insulated from each other that, in said extension direction, have layer ends that are capacitively coupled with each other. During operation of the conductor element at the resonance frequency, respective layer currents flow in the layers in the extension direction that are substantially equal in magnitude.
    Type: Application
    Filed: January 30, 2007
    Publication date: July 10, 2008
    Inventors: Wilfried Schnell, Markus Vester
  • Publication number: 20080155361
    Abstract: In a transmission error logging device, method and computer-readable medium for logging transmission errors that occur on a high speed transmission route of a medical technology diagnostic apparatus, the in-feed port for a signal is provided on the high speed transmission route and an error signal is generated upon detection of an error. The transmission volume is detected by a transmission volume counter and the number of errors is detected by a transmission error counter. The transmission volume counter makes a transmission volume count, representing the transmission volume, available as an output from the transmission volume counter, and the transmission error counter makes a count of the number of errors detected by the error detection device available at an output of the transmission error counter.
    Type: Application
    Filed: December 21, 2007
    Publication date: June 26, 2008
    Inventors: Nikolaus Demharter, Philipp Hoecht, Georg Pirkl, Wilfried Schnell
  • Publication number: 20080141461
    Abstract: A patient bed, in particular for a magnetic resonance apparatus, has at least one socket for accommodation of a plug of a device (in particular a local coil) to be arranged at the patient bed. A generation of a force generator that automatically assists or effects the insertion or the unplugging of the plug is built into the socket or is associated with the socket.
    Type: Application
    Filed: December 5, 2007
    Publication date: June 19, 2008
    Inventors: Peter Feld, Hubertus Fischer, Wilfried Schnell
  • Publication number: 20080129293
    Abstract: A magnetic resonance system has a cylindrical patient support unit in the form of a chamber delimited by a wall with a patient bed, as well as at least one flexible flat local coil element with at least one local coil. The local coil element is attached on two opposite sides to mountings accommodated in the chamber. At least one of the mountings at one side is guided to allow movement along the chamber wall, during which manual or automatic movement the local coil element is moved from a storage position adjacent to the wall of the chamber into a position on the patient, or the local coil element attached to the patient bed is able to be moved manually from a storage position to the side or below the patient bed against a return force, into a position on the patient.
    Type: Application
    Filed: March 16, 2007
    Publication date: June 5, 2008
    Inventors: Wilfried Schnell, Markus Vester
  • Publication number: 20080079430
    Abstract: A radio-frequency transmission arrangement for an MR system for generation of a total B1 field which has a first antenna device that generates a first portion of the total B1 field and at least one antenna insert that generates a second portion of the total B1 field, such that the resulting B1 field is generated by the first antenna device and the at least one antenna insert.
    Type: Application
    Filed: September 28, 2007
    Publication date: April 3, 2008
    Inventors: Juergen Nistler, Wilfried Schnell
  • Publication number: 20070240949
    Abstract: In a brake shoe (1) comprising a carrier plate (2) having arranged thereon first a dampening and noise-reducing intermediate layer (4) and then a friction lining (6), it is provided that the intermediate layer (4), on the side thereof facing towards the friction lining (6), comprises a three-dimensional surface structure, and that the friction lining (6) on the carrier-plate side is adapted to the surface contour (5) of the intermediate layer (4).
    Type: Application
    Filed: June 12, 2007
    Publication date: October 18, 2007
    Inventors: Gerhard Kurz, Wilfried Schnell, Georg Eichner, Wolfgang Hoffrichter
  • Publication number: 20070210863
    Abstract: A multi-channel amplifier has inputs via which input signals can be fed to the multi-channel amplifier. The input signals are amplified into output signals by amplifier channels of an amplification stage of the multi-channel amplifier and then are emitted via outputs of the multi-channel amplifier. An adjustment device is associated with the amplification device that allows dynamic adjustment of a limit power, up to which the respective output signal can be amplified, for each output. The limit power can be set to a maximum value for each output. The multi-channel amplifier is fashioned such that the sum of the limit powers of all outputs can always be simultaneously emitted independent of the current setting of the limit powers, but such that the sum of the limit powers is always smaller than the sum of the maximum values of all outputs. Such a multi-channel amplifier is particularly suitable for use in a transmission arrangement for radio-frequency signals.
    Type: Application
    Filed: February 23, 2007
    Publication date: September 13, 2007
    Inventor: Wilfried Schnell
  • Patent number: 7234573
    Abstract: In a brake shoe (1) comprising a carrier plate (2) having arranged thereon first a dampening and noise-reducing intermediate layer (4) and then a friction lining (6), it is provided that the intermediate layer (4), on the side thereof facing towards the friction lining (6), comprises a three-dimensional surface structure, and that the friction lining (6) on the carrier-plate side is adapted to the surface contour (5) of the intermediate layer (4).
    Type: Grant
    Filed: April 21, 2001
    Date of Patent: June 26, 2007
    Assignee: TMD Friction GmbH
    Inventors: Gerhard Kurz, Wilfried Schnell, Georg Eichner, Wolfgang Hoffrichter
  • Publication number: 20070120629
    Abstract: A resonator for magnetic resonance applications has a conductor element that extends from a first conductor end to a second conductor end. During operation of the conductor element at a resonance frequency, a resonance current oscillates from the first conductor end to the second conductor end and back. The conductor ends are coupled with one another via a circuit that tunes the conductor element to the resonance frequency. The conductor element is fashioned as a multi-layer conductor with a number of layers that exhibit layer ends at the conductor ends. The circuit causes layer currents that are of different magnitudes among one another to flow in the layers during operation of the conductor element at the resonance frequency.
    Type: Application
    Filed: November 28, 2006
    Publication date: May 31, 2007
    Inventors: Wilfried Schnell, Markus Vester
  • Publication number: 20070069842
    Abstract: The invention relates to an MRT device with a superconducting magnet whose coils are located in a helium tank and with electronic control components whereby a section of control components is located inside the helium tank or the helium tank has a hollow depression in its outer surface in which a section of the control components is located. The invention also relates to an MRT device with a superconducting magnet whose coils are located in a helium tank which is located in a vacuum vessel and with electronic control components whereby the helium tank has a hollow depression in its outer surface and whereby the vacuum vessel has a further hollow depression in its outer surface which is located in the area of the hollow depression in the helium tank whereby a section of the control components is located in the further hollow depression in the vacuum vessel.
    Type: Application
    Filed: September 28, 2006
    Publication date: March 29, 2007
    Inventor: Wilfried Schnell
  • Patent number: 7119543
    Abstract: A generator device for a magnetic resonance excitation signal has a signal divider that divides an input signal supplied to it via an input element into at least two sub-signals and supplies them to amplification stages. The amplification stages amplify the respective sub-signals to produce amplified signals and supply the amplified signals to a signal combiner that combines them to form an aggregate signal, which is made externally available via an output element. Sensor devices that precede the signal divider and the signal combiner, acquire a reference signal that corresponds to the input signal and actual signals that correspond to the amplified signals and supply them to a control device. The control device acts on at least one of the amplification stages to cause the amplified signals to exhibit a predetermined amplitude ratio and a predetermined phase relation relative to one another.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: October 10, 2006
    Assignee: Siemens Aktiengesellschaft
    Inventors: Adam Albrecht, Horst Kröckel, Wilfried Schnell, Markus Vester
  • Publication number: 20060012377
    Abstract: The turbo engine comprises rotor blades made of an electrically conductive material with an electrically insulating surface, said rotor blades being rotatably mounted on a rotor shaft arranged in a housing. The electrically conductive material of the rotor blades is electrically connected to a reference potential. At least one measuring element is arranged in the area of the rotor blades, said measuring element being intended for measuring an electrical and/or magnetic field strength caused by charge distribution on the surface of the rotor blades.
    Type: Application
    Filed: October 14, 2003
    Publication date: January 19, 2006
    Inventors: Thomas Bosselmann, Franz Eiermann, Hans-Peter Heindel, Wilfried Schnell