Patents by Inventor John L. Patrick
John L. Patrick 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: 20210096198Abstract: Gradient coil assemblies for horizontal magnetic resonance imaging systems (MRIs) and methods of their manufacture. Some embodiments may be used with open MRIs and can be used with an instrument placed in the gap of the MRI. In general, concentrations of conductors or radially oriented conductors may be moved away from the gap of the MRI so as to reduce eddy currents that may be induced in any instrument placed within the gap. Systems for directly cooling primary gradient and shield coils may be utilized and various coil supporting structures may be used to assist in coil alignment or to facilitate use of an instrument in the MRI gap.Type: ApplicationFiled: October 30, 2020Publication date: April 1, 2021Applicant: ViewRay Technologies, Inc.Inventors: Shmaryu M. SHVARTSMAN, Gordon D. DEMEESTER, John L. PATRICK, James F. DEMPSEY
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Patent number: 10823794Abstract: Gradient coil assemblies for horizontal magnetic resonance imaging systems (MRIs) and methods of their manufacture. Some embodiments may be used with open MRIs and can be used with an instrument placed in the gap of the MRI. In general, concentrations of conductors or radially oriented conductors may be moved away from the gap of the MRI so as to reduce eddy currents that may be induced in any instrument placed within the gap. Systems for directly cooling primary gradient and shield coils may be utilized and various coil supporting structures may be used to assist in coil alignment or to facilitate use of an instrument in the MRI gap.Type: GrantFiled: November 19, 2018Date of Patent: November 3, 2020Assignee: VIEWRAY TECHNOLOGIES, INC.Inventors: Shmaryu M. Shvartsman, Gordon D. Demeester, John L. Patrick, James F. Dempsey
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Patent number: 10571536Abstract: A magnetic resonance imaging (MRI) system includes a split magnet system having a pair of MRI magnet housings separated by gap. A pair of main MRI magnets are disposed within respective MRI magnet housings. A plurality of buttress assemblies are attached to the MRI magnet housings. Some or all of the buttress assemblies are provided with removable connections to the MRI magnet housings. This allows for partial disassembly of the MRI system for improved transport and maneuverability for relocating the MRI system. The MRI system can include a gantry in the gap for supporting a radiation therapy system. Also, the removably buttress assemblies can be used for housing conduits, such as electrical and fluid conduits, between the pair of MRI magnet housings.Type: GrantFiled: August 19, 2016Date of Patent: February 25, 2020Assignee: ViewRay Technologies, Inc.Inventors: James F. Dempsey, John L. Patrick, Shmaryu M. Shvartsman, Gordon D. Demeester
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Publication number: 20190219650Abstract: Gradient coil assemblies for horizontal magnetic resonance imaging systems (MRIs) and methods of their manufacture. Some embodiments may be used with open MRIs and can be used with an instrument placed in the gap of the MRI. In general, concentrations of conductors or radially oriented conductors may be moved away from the gap of the MRI so as to reduce eddy currents that may be induced in any instrument placed within the gap. Systems for directly cooling primary gradient and shield coils may be utilized and various coil supporting structures may be used to assist in coil alignment or to facilitate use of an instrument in the MRI gap.Type: ApplicationFiled: November 19, 2018Publication date: July 18, 2019Applicant: ViewRay Technologies, Inc.Inventors: Shmaryu M. SHVARTSMAN, Gordon D. DEMEESTER, John L. PATRICK, James F. DEMPSEY
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Patent number: 10132888Abstract: Gradient coil assemblies for horizontal magnetic resonance imaging systems (MRIs) and methods of their manufacture. Some embodiments may be used with open MRIs and can be used with an instrument placed in the gap of the MRI. In general, concentrations of conductors or radially oriented conductors may be moved away from the gap of the MRI so as to reduce eddy currents that may be induced in any instrument placed within the gap. Systems for directly cooling primary gradient and shield coils may be utilized and various coil supporting structures may be used to assist in coil alignment or to facilitate use of an instrument in the MRI gap.Type: GrantFiled: November 21, 2014Date of Patent: November 20, 2018Assignee: ViewRay Technologies, Inc.Inventors: Shmaryu M. Shvartsman, Gordon D. Demeester, John L. Patrick, James F. Dempsey
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Publication number: 20160356869Abstract: A magnetic resonance imaging (MRI) system includes a split magnet system having a pair of MRI magnet housings separated by gap. A pair of main MRI magnets are disposed within respective MRI magnet housings. A plurality of buttress assemblies are attached to the MRI magnet housings. Some or all of the buttress assemblies are provided with removable connections to the MRI magnet housings. This allows for partial disassembly of the MRI system for improved transport and maneuverability for relocating the MRI system. The MRI system can include a gantry in the gap for supporting a radiation therapy system. Also, the removably buttress assemblies can be used for housing conduits, such as electrical and fluid conduits, between the pair of MRI magnet housings.Type: ApplicationFiled: August 19, 2016Publication date: December 8, 2016Inventors: James F. Dempsey, John L. Patrick, Shmaryu M. Shvartsman, Gordon D. Demeester
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Patent number: 9472000Abstract: Systems and methods for tomographic reconstruction of an image include systems and methods for producing images from k-space data. A k-space data set of an imaged object is acquired using know k-space data acquisition systems and methods. A portion of the k-space data set is sampled so as to collect some portion of the k-space data. An image is then reconstructed from the collected portion of the k-space data set according to a convex optimization model.Type: GrantFiled: June 17, 2010Date of Patent: October 18, 2016Assignee: ViewRay Technologies, Inc.Inventors: James F. Dempsey, Qingguo Zeng, Roger Nana, John L. Patrick, Timothy P. Eagan, Shmaryu M. Shvartsman
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Patent number: 9423477Abstract: A magnetic resonance imaging (MRI) system includes a split magnet system having a pair of MRI magnet housings separated by gap. A pair of main MRI magnets are disposed within respective MRI magnet housings. A plurality of buttress assemblies are attached to the MRI magnet housings. Some or all of the buttress assemblies are provided with removable connections to the MRI magnet housings. This allows for partial disassembly of the MRI system for improved transport and maneuverability for relocating the MRI system. The MRI system can include a gantry in the gap for supporting a radiation therapy system. Also, the removably buttress assemblies can be used for housing conduits, such as electrical and fluid conduits, between the pair of MRI magnet housings.Type: GrantFiled: August 5, 2014Date of Patent: August 23, 2016Assignee: ViewRay Technologies, Inc.Inventors: James F. Dempsey, John L. Patrick, Shmaryu M. Shvartsman, Gordon D. DeMeester
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Patent number: 9071191Abstract: In one embodiment, a solar array system is described. The example solar array system is prefabricated as a single unit. The solar array system includes a plurality of solar panels. The solar panels of the plurality of solar panels are configured to be electrically connected to one another. At least one solar panel of the plurality of solar panels is electrically connected to a mini-inverter. The mini-inverter is configured to perform maximum power point tracking (MPPT) and apply a load to at least one solar panel of the plurality of solar panels. The mini-inverter is also configured to convert direct current (DC) power generated by the plurality of solar panels to alternating current (AC) power. The solar array system further includes a plurality of locking hinges. The locking hinges are configured to allow the plurality of solar panels to be folded on top of one another.Type: GrantFiled: December 28, 2011Date of Patent: June 30, 2015Inventor: John L Patrick
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Publication number: 20150077118Abstract: Gradient coil assemblies for horizontal magnetic resonance imaging systems (MRIs) and methods of their manufacture. Some embodiments may be used with open MRIs and can be used with an instrument placed in the gap of the MRI. In general, concentrations of conductors or radially oriented conductors may be moved away from the gap of the MRI so as to reduce eddy currents that may be induced in any instrument placed within the gap. Systems for directly cooling primary gradient and shield coils may be utilized and various coil supporting structures may be used to assist in coil alignment or to facilitate use of an instrument in the MRI gap.Type: ApplicationFiled: November 21, 2014Publication date: March 19, 2015Inventors: Shmaryu M. Shvartsman, Gordon D. Demeester, John L. Patrick, James F. Dempsey
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Publication number: 20140347053Abstract: A magnetic resonance imaging (MRI) system includes a split magnet system having a pair of MRI magnet housings separated by gap. A pair of main MRI magnets are disposed within respective MRI magnet housings. A plurality of buttress assemblies are attached to the MRI magnet housings. Some or all of the buttress assemblies are provided with removable connections to the MRI magnet housings. This allows for partial disassembly of the MRI system for improved transport and maneuverability for relocating the MRI system. The MRI system can include a gantry in the gap for supporting a radiation therapy system. Also, the removably buttress assemblies can be used for housing conduits, such as electrical and fluid conduits, between the pair of MRI magnet housings.Type: ApplicationFiled: August 5, 2014Publication date: November 27, 2014Inventors: James F. Dempsey, John L. Patrick, Shmaryu M. Shvartsman, Gordon D. DeMeester
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Patent number: 8896308Abstract: Gradient coil assemblies for horizontal magnetic resonance imaging systems (MRIs) and methods of their manufacture. Some embodiments may be used with open MRIs and can be used with an instrument placed in the gap of the MRI. In general, concentrations of conductors or radially oriented conductors may be moved away from the gap of the MRI so as to reduce eddy currents that may be induced in any instrument placed within the gap. Systems for directly cooling primary gradient and shield coils may be utilized and various coil supporting structures may be used to assist in coil alignment or to facilitate use of an instrument in the MRI gap.Type: GrantFiled: November 22, 2010Date of Patent: November 25, 2014Assignee: ViewRay IncorporatedInventors: Shmaryu M. Shvartsman, Gordon D. DeMeester, John L. Patrick, James F. Dempsey
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Patent number: 8803524Abstract: A magnetic resonance imaging (MRI) system includes a split magnet system having a pair of MRI magnet housings separated by gap. A pair of main MRI magnets are disposed within respective MRI magnet housings. A plurality of buttress assemblies are attached to the MRI magnet housings. Some or all of the buttress assemblies are provided with removable connections to the MRI magnet housings. This allows for partial disassembly of the MRI system for improved transport and maneuverability for relocating the MRI system. The MRI system can include a gantry in the gap for supporting a radiation therapy system. Also, the removably buttress assemblies can be used for housing conduits, such as electrical and fluid conduits, between the pair of MRI magnet housings.Type: GrantFiled: February 24, 2011Date of Patent: August 12, 2014Assignee: ViewRay IncorporatedInventors: James F. Dempsey, John L. Patrick, Shmaryu M. Shvartsman, Gordon D. DeMeester
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Patent number: 8717027Abstract: Apparatuses, methods, and other embodiments associated with determining organ viability are described. According to one embodiment, an apparatus includes logic configured to apply nuclear magnetic resonance (NMR) energy to a kidney positioned in a hypothermic pulsative perfusion (HPP) apparatus. The NMR energy is produced according to an MRS 31P specific pulse sequence. The HPP apparatus has an integrated RF coil. The HPP may also have an integrated magnet. The RF coil is positioned and oriented to facilitate optimizing 31P MRS of the kidney. The apparatus also includes logic configured to receive spectrum data from the kidney. The spectrum data is produced in response to applying the NMR energy to the kidney. The apparatus also includes logic configured to provide objective, quantitative kidney viability data (e.g., PME/Pi, ATP/ADP) from the spectrum data. More generally, MRI/MRS compatible HPP apparatuses are configured to interact with dedicated NMR spectroscopy apparatuses.Type: GrantFiled: December 27, 2010Date of Patent: May 6, 2014Inventors: Hiroyuki Fujita, John L. Patrick, Ronald B. Richard
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Publication number: 20130169054Abstract: In one embodiment, a solar array system is described. The example solar array system is prefabricated as a single unit. The solar array system includes a plurality of solar panels. The solar panels of the plurality of solar panels are configured to be electrically connected to one another. At least one solar panel of the plurality of solar panels is electrically connected to a mini-inverter. The mini-inverter is configured to perform maximum power point tracking (MPPT) and apply a load to at least one solar panel of the plurality of solar panels. The mini-inverter is also configured to convert direct current (DC) power generated by the plurality of solar panels to alternating current (AC) power. The solar array system further includes a plurality of locking hinges. The locking hinges are configured to allow the plurality of solar panels to be folded on top of one another.Type: ApplicationFiled: December 28, 2011Publication date: July 4, 2013Applicant: eQED, LLCInventor: John L. PATRICK
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Publication number: 20120178076Abstract: In one embodiment, a hypothermic pulsatile perfusion (HPP) apparatus is described. The example HPP includes a chamber configured to house an object (e.g., kidney, liver, heart, skin graft) to be transplanted. The example HPP may include a nuclear magnetic resonance (NMR) element(s) (e.g., coil) configured to facilitate performing a first (e.g., magnetic resonance (MR) based) analysis of the object using a first set of frequencies. The example HPP may also include a spectrum element (e.g., optical probe) configured to facilitate performing a second (e.g., non-MR based) analysis of the object using a second, different set of frequencies. The HPP apparatus is constructed from MR compatible, non-ferromagnetic materials. In one embodiment, a combination MR/non-MR apparatus may apply MR and non-MR electromagnetic energy to an object housed in the HPP apparatus.Type: ApplicationFiled: January 7, 2011Publication date: July 12, 2012Inventors: Hiroyuki FUJITA, John L. Patrick
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Publication number: 20120161770Abstract: Apparatuses, methods, and other embodiments associated with determining organ viability are described. According to one embodiment, an apparatus includes logic configured to apply nuclear magnetic resonance (NMR) energy to a kidney positioned in a hypothermic pulsative perfusion (HPP) apparatus. The NMR energy is produced according to an MRS 31P specific pulse sequence. The HPP apparatus has an integrated RF coil. The HPP may also have an integrated magnet. The RF coil is positioned and oriented to facilitate optimizing 31P MRS of the kidney. The apparatus also includes logic configured to receive spectrum data from the kidney. The spectrum data is produced in response to applying the NMR energy to the kidney. The apparatus also includes logic configured to provide objective, quantitative kidney viability data (e.g., PME/Pi, ATP/ADP) from the spectrum data. More generally, MRI/MRS compatible HPP apparatuses are configured to interact with dedicated NMR spectroscopy apparatuses.Type: ApplicationFiled: December 27, 2010Publication date: June 28, 2012Inventors: Hiroyuki FUJITA, John L. Patrick, Ronald B. Richard
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Publication number: 20110241684Abstract: A magnetic resonance imaging (MRI) system includes a split magnet system having a pair of MRI magnet housings separated by gap. A pair of main MRI magnets are disposed within respective MRI magnet housings. A plurality of buttress assemblies are attached to the MRI magnet housings. Some or all of the buttress assemblies are provided with removable connections to the MRI magnet housings. This allows for partial disassembly of the MRI system for improved transport and maneuverability for relocating the MRI system. The MRI system can include a gantry in the gap for supporting a radiation therapy system. Also, the removably buttress assemblies can be used for housing conduits, such as electrical and fluid conduits, between the pair of MRI magnet housings.Type: ApplicationFiled: February 24, 2011Publication date: October 6, 2011Applicant: VIEWRAY INCORPORATEDInventors: James F. Dempsey, John L. Patrick, Shmaryu M. Shvartsman, Gordon D. DeMeester
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Publication number: 20110121832Abstract: Gradient coil assemblies for horizontal magnetic resonance imaging systems (MRIs) and methods of their manufacture. Some embodiments may be used with open MRIs and can be used with an instrument placed in the gap of the MRI. In general, concentrations of conductors or radially oriented conductors may be moved away from the gap of the MRI so as to reduce eddy currents that may be induced in any instrument placed within the gap. Systems for directly cooling primary gradient and shield coils may be utilized and various coil supporting structures may be used to assist in coil alignment or to facilitate use of an instrument in the MRI gap.Type: ApplicationFiled: November 22, 2010Publication date: May 26, 2011Applicant: VIEWRAY INCORPORATEDInventors: Shmaryu M. Shvartsman, Gordon D. DeMeester, John L. Patrick, James F. Dempsey
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Publication number: 20100322497Abstract: Systems and methods for tomographic reconstruction of an image include systems and methods for producing images from k-space data. A k-space data set of an imaged object is acquired using know k-space data acquisition systems and methods. A portion of the k-space data set is sampled so as to collect some portion of the k-space data. An image is then reconstructed from the collected portion of the k-space data set according to a convex optimization model.Type: ApplicationFiled: June 17, 2010Publication date: December 23, 2010Applicant: VIEWRAY, INCORPORATEDInventors: James F. Dempsey, Qingguo Zeng, Roger Nana, John L. Patrick, Timothy P. Eagan, Shmaryu M. Shvartsman