Patents by Inventor Robert J. McKenney
Robert J. McKenney 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: 10197645Abstract: An intracavity probe for use with a magnetic resonance system includes: a pair of coil loops arranged in a phased array configuration; a pair of decoupling circuits; a pair of output cables; and a spacer material positioned adjacent to an anterior surface of the coil loops. Each coil loop has a drive capacitor and a tuning capacitor. Each decoupling circuit is connected across the tuning capacitor of one of the coil loops. Each output cable is connected at a first end thereof across the drive capacitor of one of the coil loops such that each of the drive capacitors is provided with a separate ground. The spacer material assures a predetermined distance between the pair of coil loops and the region of interest, which thereby reduces intensity of the magnetic resonance signals in proximity to the coil loops, maintains SNR at depth within the region of interest and reduces artifacts.Type: GrantFiled: October 5, 2015Date of Patent: February 5, 2019Assignee: Bayer HealthCare LLCInventors: Sriram Sambandamurthy, Maged R. Kamel, Robert J. McKenney
-
Patent number: 9817090Abstract: An intracavity probe for use with a magnetic resonance system includes: a pair of coil loops arranged in a phased array configuration; a pair of decoupling circuits; a pair of output cables; and a spacer material positioned adjacent to an anterior surface of the coil loops. Each coil loop has a drive capacitor and a tuning capacitor. Each decoupling circuit is connected across the tuning capacitor of one of the coil loops. Each output cable is connected at a first end thereof across the drive capacitor of one of the coil loops such that each of the drive capacitors is provided with a separate ground. The spacer material assures a predetermined distance between the pair of coil loops and the region of interest, which thereby reduces intensity of the magnetic resonance signals in proximity to the coil loops, maintains SNR at depth within the region of interest and reduces artifacts.Type: GrantFiled: June 29, 2011Date of Patent: November 14, 2017Assignee: Bayer HealthCare LLCInventors: Sriram Sambandamurthy, Maged R. Kamel, Robert J. McKenney
-
Publication number: 20160131725Abstract: An intracavity probe for use with a magnetic resonance system includes: a pair of coil loops arranged in a phased array configuration; a pair of decoupling circuits; a pair of output cables; and a spacer material positioned adjacent to an anterior surface of the coil loops. Each coil loop has a drive capacitor and a tuning capacitor. Each decoupling circuit is connected across the tuning capacitor of one of the coil loops. Each output cable is connected at a first end thereof across the drive capacitor of one of the coil loops such that each of the drive capacitors is provided with a separate ground. The spacer material assures a predetermined distance between the pair of coil loops and the region of interest, which thereby reduces intensity of the magnetic resonance signals in proximity to the coil loops, maintains SNR at depth within the region of interest and reduces artifacts.Type: ApplicationFiled: October 5, 2015Publication date: May 12, 2016Inventors: SRIRAM SAMBANDAMURTHY, MAGED R. KAMEL, ROBERT J. MCKENNEY
-
Publication number: 20140167758Abstract: An intracavity probe for use with a magnetic resonance system includes: a pair of coil loops arranged in a phased array configuration; a pair of decoupling circuits; a pair of output cables; and a spacer material positioned adjacent to an anterior surface of the coil loops. Each coil loop has a drive capacitor and a tuning capacitor. Each decoupling circuit is connected across the tuning capacitor of one of the coil loops. Each output cable is connected at a first end thereof across the drive capacitor of one of the coil loops such that each of the drive capacitors is provided with a separate ground. The spacer material assures a predetermined distance between the pair of coil loops and the region of interest, which thereby reduces intensity of the magnetic resonance signals in proximity to the coil loops, maintains SNR at depth within the region of interest and reduces artifacts.Type: ApplicationFiled: June 29, 2011Publication date: June 19, 2014Applicant: MEDRAD, INC.Inventors: Sriram Sambandamurthy, Maged R. Kamel, Robert J. McKenney
-
Patent number: 8610435Abstract: A coil for use with a magnetic resonance (MR) system includes an outer loop having a first end and a second end formed from a conductive material for detecting MR signals oriented vertical to a plane of the coil. The outer loop has a plurality of capacitors therein including: (i) a first drive capacitor and a second drive capacitor of approximately equal value serially deployed within the outer loop at the first end of the outer loop with a junction node therebetween; and (ii) a third drive capacitor and a fourth drive capacitor serially deployed within the outer loop at the second end of the outer loop with a junction node therebetween. The coil also includes a first center conductor extending between and evenly bisecting the junction nodes of the outer loop and a second center conductor extending perpendicular to the first center conductor and evenly bisecting the outer loop.Type: GrantFiled: November 23, 2010Date of Patent: December 17, 2013Assignee: MEDRAD, Inc.Inventors: Sriram Sambandamurthy, Robert J. McKenney
-
Patent number: 8581590Abstract: An intracavity probe for use with an MR system allows images and spectra of internal anatomical structures to be obtained. The intracavity probe houses within its balloon-type enclosure a single-element quadrature coil sensitive to both the vertical and horizontal components of the MR signal. The quadrature coil by means of its output line is designed to plug into a dedicated interface device with which to interface the quadrature coil with the MR system. Drive capacitors within the coil in conjunction with the electrical length of the output line and phase shifting networks within the interface device enable complete decoupling of the quadrature coil from the transmit fields generated by the MR system. Preamplifier, power splitting and combining networks within the interface device process voltage signals representative of the horizontal and vertical components of the MR signal and enable them to be conveyed to the input port(s) of the MR system.Type: GrantFiled: November 12, 2009Date of Patent: November 12, 2013Assignee: MEDRAD, Inc.Inventors: George J. Misic, Robert J. McKenney
-
Publication number: 20110121833Abstract: A coil for use with a magnetic resonance (MR) system includes an outer loop having a first end and a second end formed from a conductive material for detecting MR signals oriented vertical to a plane of the coil. The outer loop has a plurality of capacitors therein including: (i) a first drive capacitor and a second drive capacitor of approximately equal value serially deployed within the outer loop at the first end of the outer loop with a junction node therebetween; and (ii) a third drive capacitor and a fourth drive capacitor serially deployed within the outer loop at the second end of the outer loop with a junction node therebetween. The coil also includes a first center conductor extending between and evenly bisecting the junction nodes of the outer loop and a second center conductor extending perpendicular to the first center conductor and evenly bisecting the outer loop.Type: ApplicationFiled: November 23, 2010Publication date: May 26, 2011Inventors: Sriram Sambandamurthy, Robert J. McKenney
-
Patent number: 7911209Abstract: A head coil for use with a parallel-imaging compatible MR system is disclosed, as is a method of making, and a neurovascular array (NVA) equipped with, same. The head coil includes conductive rings and rods configured to produce a plurality of electrically-adjacent primary resonant substructures about a birdcage-like structure, with each such primary resonant substructure including two rods neighboring each other and the short segment of each of the first and second rings interconnecting them. The primary resonant substructures are isolated from each other via a preamplifier decoupling scheme and an offset tuning scheme thereby enabling each primary resonant substructure (i) to receive an MR signal from tissue within its field of view and (ii) to be operatively couplable to one processing channel of the MR system for conveyance of the MR signal received thereby (iii) while being simultaneously decoupled from the other primary resonant substructures.Type: GrantFiled: February 22, 2005Date of Patent: March 22, 2011Assignee: Medrad, Inc.Inventors: Fahad Alradady, William J. Monski, George J. Misic, Robert J. McKenney, Jr., Timothy S. Zibrat, Jaroslaw Wlodarczyk
-
Publication number: 20080275332Abstract: A head coil for use with a parallel-imaging compatible MR system is disclosed, as is a method of making, and a neurovascular array (NVA) equipped with, same. The head coil includes conductive rings and rods configured to produce a plurality of electrically-adjacent primary resonant substructures about a birdcage-like structure, with each such primary resonant substructure including two rods neighboring each other and the short segment of each of the first and second rings interconnecting them. The primary resonant substructures are isolated from each other via a preamplifier decoupling scheme and an offset tuning scheme thereby enabling each primary resonant substructure (i) to receive an MR signal from tissue within its field of view and (ii) to be operatively couplable to one processing channel of the MR system for conveyance of the MR signal received thereby (iii) while being simultaneously decoupled from the other primary resonant substructures.Type: ApplicationFiled: February 22, 2005Publication date: November 6, 2008Applicant: MEDRAD INC.Inventors: Fahad Alradady, William J. Monski, George J. Misic, Robert J. McKenney, Timothy S. Zibrat, Jaroslaw Wlodarczyk