Patents by Inventor Oliver Lips
Oliver Lips 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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Publication number: 20240063924Abstract: For a radio frequency (RF) receiver system (1) for use in a magnetic resonance (MR) imaging system, a solution for compensating residual coupling of RF receive coil elements (2) in the radio frequency (RF) receiver (1) system shall be created. This is achieved by a radio frequency (RF) receiver system for use in a magnetic resonance (MR) imaging system, the RF receiver system (1) comprising at least two simultaneously used RF receive coil elements (2), wherein the RF receive coil element (2) comprises a signal generator (3) for providing a compensation signal and an excitation path (4), wherein the excitation path (4) is configured to couple the compensation signal into the RF receive coil element (2), for reducing residual coupling in the RF receiver system (1) by means of the compensation signal coupled into the RF receive coil element (2).Type: ApplicationFiled: December 22, 2021Publication date: February 22, 2024Inventors: Christian Findeklee, Christoph Günther Leussler, Ingo Schmale, Oliver Lips, Peter Vernickel, Peter Caesar Mazurkewitz
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Publication number: 20230408608Abstract: For a radio frequency (RF) receiver system a solution for a safe operation of the radio frequency (RF) receiver system in magnetic resonance imaging shall be ensured. This is achieved by a radio frequency (RF) receiver system for use in a magnetic resonance (MR) imaging system the RF receiver system, wherein the RF receiver system comprises at least one RF receive coil with at least one detune circuit (1). The detune circuit (1) comprises at least a pair of crossed diodes (D1, D2) with an interface, wherein the interface is configured to measure an electrical current in the detune circuit (1) to determine the proper function of the PIN diodes (D1, D2) by measuring the detune direct current for a first detune voltage polarity and for a second reversed detune voltage polarity.Type: ApplicationFiled: November 12, 2021Publication date: December 21, 2023Inventors: Christian Findeklee, Christopher Günther Leussler, Peter Caesar Mazurkewitz, Peter Vernickel, Ingo Schmale, Oliver Lips
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Patent number: 11796614Abstract: A radio frequency (RF) antenna arrangement comprising an RF antenna element and an optical back-end. The RF antenna element comprises an electrically conductive loop, an electronic pre-amplifier and a photo-electrical conversion element. The optical back-end comprising an optical power source and a photodetector. The RF antenna element and the optical back-end being optically coupled, and wherein the optical power source is optically coupled to the photo-electrical conversion element. The photo-electrical conversion element generates upon incidence of optical power from the optical power source an electrical power signal to the pre-amplifier. The photo-electrical conversion element generates optical data signals from electrical data signals picked-up by the electrically conductive loop. The photo-electrical conversion element applies the optical data signals to the photodetector.Type: GrantFiled: March 25, 2019Date of Patent: October 24, 2023Assignee: Koninklijke Philips N.V.Inventors: Oliver Lips, Martinus Bernardus Van Der Mark
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Publication number: 20230258749Abstract: The invention relates to a magnetic resonance coil array (30) of a magnetic resonance system having a distributed cable routing realized by a self-compensated radiofrequency choke (10). The magnetic resonance coil array (30) comprises multiple magnetic resonance receive coils (32), an input-output unit (34), and multiple coaxial cables (14) interconnecting the magnetic resonance receive coils (32) with the input-output unit (34). The coaxial cable (14) comprises the self-compensated radiofrequency choke (10). The self-compensated radiofrequency choke (10) allows to replace conventional bulky resonant radiofrequency traps used in conventional magnetic resonance coil arrays and allows implementing the distributed cable routing. The self-compensated radiofrequency choke (10) comprises a choke housing (12) having a toroidal form and the coaxial cable (14), wherein the coaxial cable (14) is wound around the choke housing (12) in a self-compensated winding pattern.Type: ApplicationFiled: June 18, 2021Publication date: August 17, 2023Inventors: Christoph Günther Leussler, Oliver Lips, Peter Venickel, Peter Caesar Mazurkewitz, Christian Findeklee, Ingo Schmale
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Publication number: 20230258750Abstract: A method of setting an RF operating frequency of an MRI system (1) uses a first reference frequency signal, obtained from a geo-satellite positioning system, as a stable long term frequency reference. A second frequency source (24) is calibrated using the first frequency reference signal and the second frequency reference source (24) is then used as the master clock for the MRI system (1), for setting the RF operating frequency.Type: ApplicationFiled: June 22, 2021Publication date: August 17, 2023Inventors: Tim Nielsen, Christoph Günther Leussler, Peter Vernickel, Oliver Lips
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Publication number: 20230128603Abstract: The invention also refers to a flexible coil element for a flexible coil array, for a magnetic resonance imaging apparatus. The invention also refers to a flexible coil array, for a magnetic resonance imaging apparatus, for indicating a loading state of a flexible coil element being positioned on at least one inductive element. The invention also refers to a method for indicating a loading state of a flexible coil element being positioned on at least one inductive element. The flexible coil element is comprised by a flexible coil array, wherein the flexible coil array comprises at least one flexible coil element. Furthermore, the invention refers to a software package comprising instructions for carrying out the method steps.Type: ApplicationFiled: March 24, 2021Publication date: April 27, 2023Inventors: Peter Vernickel, Christian Findeklee, Christoph Günther Leussler, Oliver Lips, Ingo Schmale, Peter Caesar Mazurkewitz
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Patent number: 11519982Abstract: A radio frequency (RF) system comprises an RF-array of antenna elements, a regulating arrangement to tune the antenna elements' impedances and a camera system to acquire image information of the RF-array. An analysis module is provided to derive operational settings such as resonant tuning settings, decoupling and impedance matchings of the antenna elements' impedances from the image information. The image information also represents the actual impedances and resonant properties of the RF-array. From the image information appropriate impedance settings can be derived that are the tuning parameters to render the RF-array resonant.Type: GrantFiled: December 9, 2019Date of Patent: December 6, 2022Assignee: Koninklijke Philips N.V.Inventors: George Randall Duensing, Sascha Krueger, Christian Findeklee, Oliver Lips
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Patent number: 11454684Abstract: When predicting required component service in an imaging device such as a magnetic resonance (MR) imaging device (12), component parameters such as coil voltage, phase lock lost (PLL) events, etc. are sampled to monitor system components. Voltage samples are filtered according to their temporal proximity to coil plug-in and unplug events to generate a filtered data set that is analyzed by a processor (46) to determine whether to transmit a fault report. A service recommendation is received based on the transmitted report and includes a root cause diagnosis and service recommendation that is output to a user interface (50).Type: GrantFiled: March 5, 2018Date of Patent: September 27, 2022Assignee: Koninklijke Philips N.V.Inventors: Falk Uhlemann, Graham Michael Place, Ingmar Graesslin, Christian Findeklee, Oliver Lips, Cornelis Jacobus Hendrikus Blom
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Patent number: 11402450Abstract: The present invention provides a radio frequency (RF) shield device (124) for a magnetic resonance (MR) examination system (110), whereby the RF shield device (124) comprises a first shield (250) and a second shield (252), the first shield (250) and the second shield (252) are arranged with a common center axis (118), the first shield (250) has a shield structure (254) different from a shield structure (254) of the second shield (252), and the first shield (250) and the second shield (252) are designed in accordance with different modes of operation of a RF coil device (140).Type: GrantFiled: December 21, 2017Date of Patent: August 2, 2022Assignee: Koninklijke Philips N.V.Inventors: Christoph Leussler, Christian Findeklee, Oliver Lips
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Publication number: 20220206054Abstract: The invention relates to the field of magnetic resonance, and in particular to determining a location of an error in a supply or signal line (12). Due to the rugged environment for MR systems (10) in hospitals supply or signal lines (12) of MR systems (10) are error prone. For serviceability and part replacement it is important to locate the error in the supply or signal line (12) or to identify the subunit (14, 16, 18, 20) of the supply or signal line (12) in which the error occurred. The basic idea of the invention is to use an additional impedance (24), that is coupled to the supply or signal line (12) of the MR system (10) in the region of interconnection (22) for locating the error in the supply or signal line (12). The additional impedance provides a reference impedance value. By measuring the impedance and comparing the measured impedance to the reference impedance value, the error in the supply or signal line (12) can be located.Type: ApplicationFiled: April 24, 2020Publication date: June 30, 2022Inventors: PETER VERNICKEL, OLIVER LIPS
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Patent number: 11372064Abstract: The invention relates to a magnetic resonance receive coil including a resonator for use in a magnetic resonance imaging system. The radio frequency receive coil according to the invention comprises a first conducting element of the resonator having a conductive loop wherein the received signal is induced in that loop, configured to form a primary resonant circuit tunable to at least one first resonance frequency and a second conducting element of the resonator configured to form an electric circuit electrically insulated from and reactively coupled to the primary resonant circuit, the electric circuit being adapted to detune the primary resonant circuit to at least one second resonance frequency. The second conducting element of the resonator has a conductive loop with a pair of ends connected to a preamplifier.Type: GrantFiled: September 9, 2019Date of Patent: June 28, 2022Assignee: Koninklijke Philips N.V.Inventors: Christian Findeklee, Oliver Lips
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Patent number: 11318280Abstract: The present invention relates to a catheter (2) for applying energy to an object (6) and a magnetic resonance imaging system (1) for localizing the catheter (2). The catheter (2) comprises an energy application element for applying energy to the object (6), and a cavity for providing a magnetic resonance fluid from which magnetic resonance signals generated by the magnetic resonance imaging system (1) are receivable, wherein the cavity is adapted for providing a cooling fluid as the magnetic resonance fluid for cooling the energy application element. The catheter (2) comprises further a tracking coil (15) for tracking the catheter (2), wherein the tracking coil (15) is adapted to receive the magnetic resonance signals from the magnetic resonance fluid. Thus, the magnetic resonance fluid fulfils at least two functions, providing magnetic resonance signals for tracking the catheter (2) and cooling the energy application element.Type: GrantFiled: January 11, 2010Date of Patent: May 3, 2022Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Steffen Weiss, Oliver Lips, Sascha Krueger, David Bernd
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Publication number: 20220091202Abstract: The invention provides for a magnetic resonance imaging system (100, 300). The magnetic resonance imaging system comprises: a subject support (120) configured for moving a subject between a loading position (121) and an imaging position (200); a receive magnetic resonance imaging coil (114) configured for being placed on the subject; and a light detection system (115) comprising at least one ambient light sensor for measuring light data (144). The light detection system is any one of the following: mounted to the main magnet such that the light data is measured from the imaging zone and mounted to the receive magnetic resonance imaging coil.Type: ApplicationFiled: January 10, 2016Publication date: March 24, 2022Inventors: PETER VERNICKEL, CHRISTOPH GUNTHER LEUSSLER, OLIVER LIPS, INGO SCHMALE, CHRISTIAN FINDEKLEE
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Patent number: 11269033Abstract: The invention relates to a shim iron (130) for use with an magnetic resonance (MR) apparatus (10), wherein the shim iron (130) is comprised of a stack of shim plates (131, 132, 133, 134, 135), wherein at least two of the shim plates (131, 132, 133, 134, 135) comprise slits, the slits forming a respective slit pattern of the slit shim plates (131, 132, 133, 134, 135), and wherein the slit patterns, when viewed from the same viewing direction, are comprised of at least two different slit patterns which may not be brought into congruent coverage with each other. In this way, a shim iron (130) is provided which does not heat up to high temperatures due to eddy currents.Type: GrantFiled: April 2, 2019Date of Patent: March 8, 2022Assignee: Koninklijke Philips N.V.Inventors: Peter Vernickel, Ingo Schmale, Oliver Lips
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Publication number: 20220050156Abstract: A radio frequency (RF) system comprises an RF-array of antenna elements, a regulating arrangement to tune the antenna elements' impedances and a camera system to acquire image information of the RF-array. An analysis module is provided to derive operational settings such as resonant tuning settings, decoupling and impedance matchings of the antenna elements' impedances from the image information. The image information also represents the actual impedances and resonant properties of the RF-array. From the image information appropriate impedance settings can be derived that are the tuning parameters to render the RF-array resonant.Type: ApplicationFiled: December 9, 2019Publication date: February 17, 2022Inventors: George Randall Duensing, Sascha Krueger, Christian Findeklee, Oliver Lips
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Patent number: 11243279Abstract: A radio frequency (RF) antenna element with a (de)tuning system, with the RF antenna element having a resonant electrically conductive loop and a (de)tuning system including a photosensitive switching element to (de)tune the resonant electrically conductive loop. The (de)tuning system comprises an injection optical source optically coupled to the photosensitive switching element.Type: GrantFiled: March 26, 2019Date of Patent: February 8, 2022Assignee: Koninklijke Philips N.V.Inventors: Oliver Lips, Martinus Bernardus Van Der Mark
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Patent number: 11194000Abstract: The invention provides for a magnetic resonance imaging system (100) comprising a radio frequency system (116, 114, 118) configured for acquiring magnetic resonance data (144) from an imaging zone (108). The radio frequency system is configured for sending and receiving radio frequency signals to acquire the magnetic resonance data, wherein the radio frequency system comprises: an elliptical transmission coil (114) configured for generating a B1+ excitation field within the imaging zone; and an active B1 shim coil (118) configured for being placed within the imaging zone, wherein the radio frequency system is configured for suppling radio frequency power to the active B1 shim coil during the generation of the B1+ excitation field by the elliptical transmission coil, wherein the B1 shim coil is configured for shimming the B1+ excitation field within the imaging zone.Type: GrantFiled: January 10, 2019Date of Patent: December 7, 2021Assignee: Koninklijke Philips N.V.Inventors: Christoph Leussler, Peter Vernickel, Oliver Lips, Ingo Schmale, Daniel Wirtz
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Patent number: 11163026Abstract: A magnetic resonance imaging system (100) comprising a main magnet (104) for generating a main magnetic field within an imaging zone (108); a radio frequency, RF, antenna (114), comprising an RF input terminal (300) and an RF output terminal (302); an RF system for supplying radio-frequency power to the RF input terminal (300) to energize the antenna (114), the antenna (114) being further adapted for picking up magnetic resonance signals (144) from the imaging zone (108); a data acquisition system (126) for receiving the magnetic resonance signals (144) from the RF output terminal (302); wherein the RF input terminal (300) is in galvanic connection to the antenna (114) and the RF output terminal (302) is inductively coupled to the antenna (114).Type: GrantFiled: March 26, 2018Date of Patent: November 2, 2021Assignee: Koninklijke Philips N.V.Inventors: Christoph Leussler, Oliver Lips, Ingo Schmale
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Patent number: 11137459Abstract: An RF antenna element with a detuning system in which the RF antenna element comprises a resonant electrically conductive loop. The (de)tuning system comprising a switching element to (de)tune the resonant electrically conductive loop. The (de)tuning system element includes an electroluminescent element coupled to the resonant electrically conductive loop. The (de)tuning system includes a photo-electrical conversion element to detect an electro-luminescent signal from the electroluminescent element.Type: GrantFiled: March 26, 2019Date of Patent: October 5, 2021Assignee: Koninklijke Philips N.V.Inventors: Oliver Lips, Martinus Bernardus Van Der Mark
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Patent number: 11112471Abstract: The present invention is directed to inductively feeding a RF coil (9) for magnetic resonance imaging (MRI), and in particular to a system comprising a RF coil (9) for magnetic resonance imaging and at least one feeding coil (14) for inductively feeding the RF coil (9) with an RF signal, and further to a method for inductively feeding a RF coil (9) for magnetic resonance imaging with at least one RF signal. According to the invention, in this system, the at least one feeding coil (14) is configured and arranged for feeding the RF signal into a conductive coil element (10) of the RF coil (9) at a first position and at a second position, the first position being different from the second position, wherein the direction of the magnetic field of the RF signal at the first position is different from the magnetic field of the RF signal at the second position. In this way, the invention provides for an inductive RF feeding of a resonator which can be achieved in a compensated way, i.e.Type: GrantFiled: January 30, 2018Date of Patent: September 7, 2021Assignee: Koninklijke Philips N.V.Inventors: Christoph Leussler, Oliver Lips