Patents by Inventor Parag Karmarkar

Parag Karmarkar 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).

  • Magnetic resonance probes
    Publication number: 20040046557
    Abstract: A magnetic resonance probe may include a plurality of center conductors, at least some center conductors including a conductive core and an insulator disposed at least partially about the core along at least a portion of the core, a first dielectric layer disposed at least partially about the plurality of center conductors in a proximal portion of the probe, an outer conductive layer at least partially disposed about the first dielectric layer, and a plurality of electrodes, at least one electrode being coupled to one of the center conductors and disposed at least partly on a probe surface.
    Type: Application
    Filed: May 29, 2003
    Publication date: March 11, 2004
    Inventors: Parag Karmarkar, Ingmar Viohl
  • Magnetic resonance imaging guidewire probe
    Patent number: 6675033
    Abstract: The invention describes a system, method, and means for an MRI guidewire that can be visible on an MRI, can act as an antenna and receive MRI signals from surrounding subject matter, and can allow the use of multiple interventional tools without removal of the guidewire from a subject.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: January 6, 2004
    Assignees: Johns Hopkins University School of Medicine, Surgi-Vision, Inc.
    Inventors: Albert C. Lardo, Xiaoming Yang, Ergin Atalar, Parag Karmarkar, Elliott R. McVeigh, Henry R. Halperin, Christine Enger McNamara, Paul A. Bottomley
  • Apparatus, systems, and methods for in vivo magnetic resonance imaging
    Patent number: 6628980
    Abstract: The apparatus, systems and methods of the present invention provide for MRI sleeves, probes, and combinations thereof adapted for insertion into a subject, in order to internally image regions of the subject.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: September 30, 2003
    Assignee: Surgi-Vision, Inc.
    Inventors: Ergin Atalar, Paul A. Bottomley, Parag Karmarkar, Albert C. Lardo, Elias Zerhouni
  • Magnetic resonance imaging probe
    Publication number: 20030028095
    Abstract: Herein is disclosed a magnetic resonance imaging probe, having a probe shaft including a magnetic resonance antenna, and a spring tip attached to a distal end of the antenna.
    Type: Application
    Filed: April 11, 2002
    Publication date: February 6, 2003
    Inventors: Steve Tulley, Albert C. Lardo, Parag Karmarkar, Elliot McVeigh, Henry R. Halperin, Christine Enger McNamara, Paul A. Bottomley, Ergin Atalar, Xiaoming Yang
  • Apparatus, systems, and methods for in vivo magnetic resonance imaging
    Publication number: 20020045816
    Abstract: The apparatus, systems and methods of the present invention provide for MRI sleeves, probes, and combinations thereof adapted for insertion into a subject, in order to internally image regions of the subject.
    Type: Application
    Filed: March 26, 2001
    Publication date: April 18, 2002
    Inventors: Ergin Atalar, Paul A. Bottomley, Parag Karmarkar, Albert C. Lardo, Elias Zerhouni
  • Systems and methods for evaluating the urethra and the periurethral tissues
    Publication number: 20020040185
    Abstract: The present invention provides systems and methods for the evaluation of the urethra and periurethral tissues using an MRI coil adapted for insertion into the male, female or pediatric urethra. The MRI coil may be in electrical communication with an interface circuit made up of a tuning-matching circuit, a decoupling circuit and a balun circuit. The interface circuit may also be in electrical communication with a MRI machine. In certain practices, the present invention provides methods for the diagnosis and treatment of conditions involving the urethra and periurethral tissues, including disorders of the female pelvic floor, conditions of the prostate and anomalies of the pediatric pelvis.
    Type: Application
    Filed: April 2, 2001
    Publication date: April 4, 2002
    Inventors: Ergin Atalar, Harald Quick, Parag Karmarkar