Patents by Inventor Thomas F. Kordis

Thomas F. Kordis 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).

  • Publication number: 20120271139
    Abstract: A system a system for sensing multiple local electric voltages from endocardial surface of a heart, includes: a first elongate tubular member; a basket assembly including: a plurality of flexible splines for guiding a plurality of exposed electrodes, the splines having proximal portions, distal portions and medial portions therein between; a proximal anchor for securably affixing the proximal portions of the splines; the proximal anchor being secured at the distal end of the first elongate tubular member; a distal tip for securably affixing the distal portions of the splines wherein at least some of the splines in the radially expanded non-spherical shape contain a distal excurvate outward bend disposed at the distal portion of the spline at a location near to the distal tip of the basket assembly to bend the splines back towards the proximal anchor.
    Type: Application
    Filed: March 1, 2012
    Publication date: October 25, 2012
    Applicant: TOPERA, INC.
    Inventors: Thomas F. Kordis, Ruchir Sehra, Eric T. Johnson, Darrin J. Kent, Robert Ryan Ragland
  • Publication number: 20120271140
    Abstract: A system for sensing multiple local electric voltages from endocardial surface of a heart, includes: a first elongate tubular member having a lumen, a proximal end and a distal end; and a basket assembly including: a plurality of flexible splines for guiding a plurality of exposed electrodes, the splines having proximal portions and distal portions; an anchor for securably affixing the proximal portions of the splines; the anchor being secured at the distal end of the first elongate tubular member; an encapsulated and filament-wrapped distal tip including an encapsulant and a filament for securably affixing the distal portions of the splines in a predetermined angular relationship at the distal tip; wherein the splines comprise a superelastic material; and wherein the basket assembly has a radially expanded non-cylindrical shape.
    Type: Application
    Filed: March 1, 2012
    Publication date: October 25, 2012
    Applicant: TOPERA, INC.
    Inventors: Thomas F. Kordis, Eric T. Johnson, Phillip C. Burke, Darrin J. Kent, Robert Ryan Ragland
  • Patent number: 8285393
    Abstract: A device and method for treating an infarct scar on a heart comprising an electric cable with proximal and distal ends; a handle with proximal and distal ends with the proximal end connected to the distal end of the cable; a stem with proximal and distal ends with the proximal end of the stem connected to the distal end of the handle; a heating element with a first surface for contacting infarct scar tissue connected to the distal end of the stem wherein the heating element comprises at least two electrodes and at least one temperature sensor positioned on the first surface for sensing a temperature of infarct scar tissue adjacent to the sensor; an energy source connected to the electrodes via the electric cable; and a regulator connected to the energy source and the temperature sensor of the infarct scar tissue, for controlling the temperature of the infarct scar tissue from about 60 degrees C. to about 99 degrees C.
    Type: Grant
    Filed: October 3, 2005
    Date of Patent: October 9, 2012
    Inventors: Michael D. Laufer, Suresh K. Wadhwani, Edward J. Nance, Payam Adlparvar, Thomas F. Kordis
  • Patent number: 7837684
    Abstract: A method of ablating tissue in the heart to treat atrial fibrillation introduces into a selected atrium an energy emitting element. The method exposes the element to a region of the atrial wall and applies ablating energy to the element to thermally destroy tissue. The method forms a convoluted lesion pattern comprising elongated straight lesions and elongated curvilinear lesions. The lesion pattern directs electrical impulses within the atrial myocardium along a path that activates the atrial myocardium while interrupting reentry circuits that, if not interrupted, would cause fibrillation. The method emulates the surgical maze procedure, but lends itself to catheter-based procedures that do not require open heart surgical techniques. A composite structure for performing the method is formed using a template that displays in planar view a desired lesion pattern for the tissue. An array of spaced apart element is laid on the template.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: November 23, 2010
    Assignee: EP Technologies, Inc.
    Inventors: David K. Swanson, Sidney D. Fleischman, Thomas F. Kordis, David L. McGee
  • Publication number: 20100226210
    Abstract: A system and method for detecting the exact location of an acoustic event, the system comprising a plurality of variably spaced sensors, wherein each sensor comprises an omnidirectional microphone for detecting the acoustic event; a global positioning system (GPS); and a transmitter receiver for transmitting (i) the time that the acoustic event arrived at a particular sensor and (ii) the location of the particular sensor at the time the acoustic event arrived at the particular sensor; and a central processor radio-linked to the plurality of variably spaced sensors comprising a software program comprising at least one algorithm for determining the location of the acoustic event.
    Type: Application
    Filed: December 13, 2006
    Publication date: September 9, 2010
    Inventors: Thomas F. Kordis, Fred McClain
  • Patent number: 7413568
    Abstract: A method of ablating tissue in the heart to treat atrial fibrillation introduces into a selected atrium an energy emitting element. The method exposes the element to a region of the atrial wall and applies ablating energy to the element to thermally destroy tissue. The method forms a convoluted lesion pattern comprising elongated straight lesions and elongated curvilinear lesions. The lesion pattern directs electrical impulses within the atrial myocardium along a path that activates the atrial myocardium while interrupting reentry circuits that, if not interrupted, would cause fibrillation. The method emulates the surgical maze procedure, but lends itself to catheter-based procedures that do not require open heart surgical techniques. A composite structure for performing the method is formed using a template that displays in planar view a desired lesion pattern for the tissue. An array of spaced apart element is laid on the template.
    Type: Grant
    Filed: May 29, 2001
    Date of Patent: August 19, 2008
    Assignee: EP Technologies, Inc.
    Inventors: David K. Swanson, Sidney D. Fleischman, Thomas F. Kordis, David L. McGee
  • Publication number: 20080161802
    Abstract: A method of ablating tissue in the heart to treat atrial fibrillation introduces into a selected atrium an energy emitting element. The method exposes the element to a region of the atrial wall and applies ablating energy to the element to thermally destroy tissue. The method forms a convoluted lesion pattern comprising elongated straight lesions and elongated curvilinear lesions. The lesion pattern directs electrical impulses within the atrial myocardium along a path that activates the atrial myocardium while interrupting reentry circuits that, if not interrupted, would cause fibrillation. The method emulates the surgical maze procedure, but lends itself to catheter-based procedures that do not require open heart surgical techniques. A composite structure for performing the method is formed using a template that displays in planar view a desired lesion pattern for the tissue. An array of spaced apart element is laid on the template.
    Type: Application
    Filed: October 24, 2007
    Publication date: July 3, 2008
    Inventors: David K. Swanson, Sidney D. Fleischman, Thomas F. Kordis, David L. McGee
  • Patent number: 7241310
    Abstract: A method and device for reducing mitral regurgitation. An elongated body is positioned in a coronary sinus of a patient in a vicinity of a heart mitral valve posterior leaflet. The body is adapted to straighten a natural curvature of at least a portion of the coronary sinus in the vicinity of the posterior leaflet to move a posterior annulus anteriorly, which in turn moves the posterior leaflet anteriorly, thereby to improve leaflet coaptation.
    Type: Grant
    Filed: January 14, 2003
    Date of Patent: July 10, 2007
    Inventors: Daniel C. Taylor, William E. Cohn, John R. Liddicoat, Steven B. Woolfson, Todd F. Davenport, Richard B. Streeter, Thomas F. Kordis, Jonathan Rourke
  • Patent number: 7115122
    Abstract: A method of ablating tissue in the heart to treat atrial fibrillation introduces into a selected atrium an energy emitting element. The method exposes the element to a region of the atrial wall and applies ablating energy to the element to thermally destroy tissue. The method forms a convoluted lesion pattern comprising elongated straight lesions and elongated curvilinear lesions. The lesion pattern directs electrical impulses within the atrial myocardium along a path that activates the atrial myocardium while interrupting reentry circuits that, if not interrupted, would cause fibrillation. The method emulates the surgical maze procedure, but lends itself to catheter-based procedures that do not require open heart surgical techniques. A composite structure for performing the method is formed using a template that displays in planar view a desired lesion pattern for the tissue. An array of spaced apart element is laid on the template.
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: October 3, 2006
    Assignee: EP Technologies, Inc.
    Inventors: David K. Swanson, Sidney D. Fleischman, Thomas F. Kordis, David L. McGee
  • Patent number: 7039469
    Abstract: A device and method for treating an infarct scar on a heart comprising an electric cable with proximal and distal ends; a handle with proximal and distal ends with the proximal end connected to the distal end of the cable; a stem with proximal and distal ends with the proximal end of the stem connected to the distal end of the handle; a heating element with a first surface for contacting infarct scar tissue connected to the distal end of the stem wherein the heating element comprises at least two electrodes and at least one temperature sensor positioned on the first surface for sensing a temperature of infarct scar tissue adjacent to the sensor; an energy source connected to the electrodes via the electric cable; and a regulator connected to the energy source and the temperature sensor of the infarct scar tissue, for controlling the temperature of the infarct scar tissue from about 60 degrees C. to about 99 degrees C.
    Type: Grant
    Filed: April 9, 2003
    Date of Patent: May 2, 2006
    Inventors: Michael D. Laufer, Suresh K. Wadhwani, Edward J. Nance, Payam Adlparvar, Thomas F. Kordis
  • Patent number: 6805131
    Abstract: An electrode support structure has a slotted hub and an integral body with a mid-section and opposed pair of spline elements that extend from the mid-section. The mid-section is captured within the slot, securing the integral body to the hub with the opposed spline elements radiating free of the slot for carrying one or more electrodes.
    Type: Grant
    Filed: August 29, 2002
    Date of Patent: October 19, 2004
    Assignee: EP Technologies, Inc.
    Inventor: Thomas F. Kordis
  • Patent number: 6736811
    Abstract: Electrode assemblies and associated systems employ a nonporous wall having an exterior for contacting tissue. The exterior peripherally surrounds an interior area. The wall is essentially free of electrically conductive material. The wall is adapted to assume an expanded geometry having a first maximum diameter and a collapsed geometry having a second maximum diameter less than the first maximum diameter. The assemblies and systems include a lumen that conveys a medium containing ions into the interior area. An element free of physical contact with the wall couples the medium within the interior area to a source of electrical energy to enable ionic transport of electrical energy from the source through the medium to the wall for capacitive coupling to tissue contacting the exterior of the wall.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: May 18, 2004
    Assignee: EP Technologies, Inc.
    Inventors: Dorin Panescu, David K. Swanson, James G. Whayne, Thomas F. Kordis
  • Patent number: 6716196
    Abstract: This is a method and an apparatus for the introduction of therapeutic compounds into tissue, particularly cardiac tissue. The apparatus includes a catheter having an elongated flexible body and a tissue infusion apparatus including a hollow infusion needle configured to secure the needle into the tissue when the needle is at least partially inserted into the tissue to help prevent inadvertent removal of the needle from the tissue. This permits the selected therapeutic compound to be delivered to a specific site. The catheter may also include a visualization assembly including a transducer at the distal end of the body.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: April 6, 2004
    Assignee: The Regents of the University of California
    Inventors: Michael D. Lesh, Thomas F. Kordis, Stuart D. Edwards
  • Publication number: 20040054335
    Abstract: This is a method and an apparatus for the treatment or introduction of contrast fluids into tissue, particularly cardiac tissue. The apparatus includes a catheter having an elongated flexible body and a tissue infusion apparatus including a hollow infusion needle configured to secure the needle into the tissue when the needle is at least partially inserted into the tissue to help prevent inadvertent removal of the needle from the tissue. This permits the selected treatment or contrast fluid to be confined to a specific site. The catheter may also include a visualization assembly including a transducer at the distal end of the body.
    Type: Application
    Filed: August 12, 2003
    Publication date: March 18, 2004
    Inventors: Michael D. Lesh, Thomas F. Kordis, Stuart D. Edwards
  • Patent number: 6699268
    Abstract: The system of the present invention includes a heat exchange catheter for warming flowing blood within a blood vessel. The heat exchange catheter includes a catheter body having a proximal end and a distal end with electrodes. The electrodes generate an electric field that radiates heat to the flowing blood. The electrodes comprise discrete bands that serially align and are spaced apart from each other. Each electrode has a polarity, and for each electrode there is an adjacent electrode having an opposite polarity. A support centrally aligns the catheter body within the blood vessel.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: March 2, 2004
    Assignee: Alsius Corporation
    Inventors: Thomas F. Kordis, Mark E. Whitebook, Scott M. Evans
  • Publication number: 20040019377
    Abstract: A method and device for reducing mitral regurgitation. An elongated body is positioned in a coronary sinus of a patient in a vicinity of a heart mitral valve posterior leaflet. The body is adapted to straighten a natural curvature of at least a portion of the coronary sinus in the vicinity of the posterior leaflet to move a posterior annulus anteriorly, which in turn moves the posterior leaflet anteriorly, thereby to improve leaflet coaptation.
    Type: Application
    Filed: January 14, 2003
    Publication date: January 29, 2004
    Inventors: Daniel C. Taylor, William E. Cohn, John R. Liddicoat, Steven B. Woolfson, Todd F. Davenport, Richard B. Streeter, Thomas F. Kordis, Jonathan Rourke
  • Patent number: 6656221
    Abstract: A method and apparatus for reducing mitral regurgitation. The apparatus is inserted into the coronary sinus of a patient in the vicinity of the posterior leaflet of the mitral valve, the apparatus being adapted to straighten the natural curvature of at least a portion of the coronary sinus in the vicinity of the posterior leaflet of the mitral valve, whereby to move the posterior annulus anteriorly and thereby improve leaflet coaptation and reduce mitral regurgitation.
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: December 2, 2003
    Assignee: Viacor, Inc.
    Inventors: Daniel C. Taylor, John R. Liddicoat, Richard B. Streeter, Steven B. Woolfson, William E. Cohn, Todd F. Davenport, Thomas F. Kordis
  • Publication number: 20030191511
    Abstract: A device and method for treating an infarct scar on a heart comprising an electric cable with proximal and distal ends; a handle with proximal and distal ends with the proximal end connected to the distal end of the cable; a stem with proximal and distal ends with the proximal end of the stem connected to the distal end of the handle; a heating element with a first surface for contacting infarct scar tissue connected to the distal end of the stem wherein the heating element comprises at least two electrodes and at least one temperature sensor positioned on the first surface for sensing a temperature of infarct scar tissue adjacent to the sensor; an energy source connected to the electrodes via the electric cable; and a regulator connected to the energy source and the temperature sensor of the infarct scar tissue, for controlling the temperature of the infarct scar tissue from about 60 degrees C. to about 99 degrees C.
    Type: Application
    Filed: April 9, 2003
    Publication date: October 9, 2003
    Applicants: Tony R. Brown, Michael D. Laufer
    Inventors: Michael D. Laufer, Suresh K. Wadhwani, Edward J. Nance, Payam Adlparvar, Thomas F. Kordis
  • Patent number: 6577902
    Abstract: A device and method for treating an infarct scar on a heart comprising an electric cable with proximal and distal ends; a handle with proximal and distal ends with the proximal end connected to the distal end of the cable; a stem with proximal and distal ends with the proximal end of the stem connected to the distal end of the handle; a heating element with a first surface for contacting infarct scar tissue connected to the distal end of the stem wherein the heating element comprises at least two electrodes and at least one temperature sensor positioned on the first surface for sensing a temperature of infarct scar tissue adjacent to the sensor; an energy source connected to the electrodes via the electric cable; and a regulator connected to the energy source and the temperature sensor of the infarct scar tissue, for controlling the temperature of the infarct scar tissue from about 60 degrees C. to about 99 degrees C.
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: June 10, 2003
    Inventors: Michael D. Laufer, Suresh K. Wadhwani, Edward J. Nance, Payam Adlparvar, Thomas F. Kordis
  • Publication number: 20030093069
    Abstract: Electrode assemblies and associated systems employ a nonporous wall having an exterior for contacting tissue. The exterior peripherally surrounds an interior area. The wall is essentially free of electrically conductive material. The wall is adapted to assume an expanded geometry having a first maximum diameter and a collapsed geometry having a second maximum diameter less than the first maximum diameter. The assemblies and systems include a lumen that conveys a medium containing ions into the interior area. An element free of physical contact with the wall couples the medium within the interior area to a source of electrical energy to enable ionic transport of electrical energy from the source through the medium to the wall for capacitive coupling to tissue contacting the exterior of the wall.
    Type: Application
    Filed: June 11, 2002
    Publication date: May 15, 2003
    Applicant: EP Technologies, Inc.
    Inventors: Dorin Panescu, David K. Swanson, James G. Whayne, Thomas F. Kordis