Patents by Inventor James R. Keogh

James R. Keogh 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: 20030195384
    Abstract: A device for monitoring temperature generated by an ablation apparatus on organic tissue is provided. The device comprises a temperature sensing pad; and an output device to receive and display a representation of a lesion found on the ablated organic tissue. Ablation systems incorporating the device and methods of using the device are also provided.
    Type: Application
    Filed: April 9, 2003
    Publication date: October 16, 2003
    Inventors: David E. Francischelli, Scott E. Jahns, James R. Keogh
  • Patent number: 6628987
    Abstract: A system of performing a medical procedure, such as surgery, is provided. The system comprises a sensor to sense a state of cardiac tissue, such as an impending contraction and an indicator to indicate the state of the cardiac tissue. Methods and devices for performing the medical procedure are also provided.
    Type: Grant
    Filed: September 26, 2000
    Date of Patent: September 30, 2003
    Assignee: Medtronic, Inc.
    Inventors: Michael R. S. Hill, Scott E. Jahns, James R. Keogh
  • Patent number: 6617142
    Abstract: Methods are provided for forming a coating of an immobilized biomolecule on a surface of a medical device to impart improved biocompatibility for contacting tissue and bodily fluids. A biomolecule such as a glycoprotein having an unsubstituted amide moiety is combined with an amine forming agent to form an amine-functional biomolecule. The amine-functional biomolecule is combined with a medical device surface having a chemical moiety such as aldehyde, epoxide, isocyanate, 1,2-dicarbonyl, phosphate, sulphate or carboxylate to form a chemical bond immobilizing the biomolecule on the surface. The chemical bond may be combined with a reducing agent or a stabilizing agent. The aldehyde moiety may be formed by combining a periodate with a 2-aminoalcohol moiety or a 1,2-dihydroxy moiety. Alternatively, an amine-functional medical device surface is combined with a biomolecule having a chemical moiety that reacts with an amine moiety.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: September 9, 2003
    Assignee: Medtronic, Inc.
    Inventors: James R. Keogh, Paul V. Trescony
  • Publication number: 20030167056
    Abstract: A suction assisted ablation device having a support surface, suction elements disposed adjacent the support surface, at least one electrode and at least one suction conduit is provided. The device may further include fluid openings, which allow fluid to irrigate target tissue and aid in ablation. A method for ablating tissue using suction is also provided.
    Type: Application
    Filed: February 27, 2003
    Publication date: September 4, 2003
    Inventors: Scott E. Jahns, Greg P. Werness, Jon M. Ocel, David Lipson, Donald N. Jensen, David E. Francischelli, James R. Keogh
  • Publication number: 20030144656
    Abstract: An electrosurgical instrument including an elongated shaft and a non-conductive handle. The shaft defines a proximal section, a distal section, and an internal lumen extending from the proximal section. The distal section forms an electrically conductive tip and defines at least one passage for distributing fluid. Further, the shaft is adapted to be transitionable from a straight state to a first bent state. The shaft is capable of independently maintaining the distinct shapes associated with the straight state and the first bent state. The handle is rigidly coupled to the proximal section of the shaft. With this in mind, an exterior surface of the shaft distal the handle and proximal the distal section is electrically non-conductive. In one preferred embodiment, the shaft is comprised of an elongated electrode body surrounded by an electrical insulator.
    Type: Application
    Filed: January 25, 2002
    Publication date: July 31, 2003
    Applicant: Medtronic, Inc
    Inventors: Jon Ocel, Roderich Briscoe, David Francischelli, Scott Jahns, James R. Keogh
  • Patent number: 6584360
    Abstract: A device for monitoring temperature generated by an ablation apparatus on organic tissue is provided. The device comprises a temperature sensing pad; and an output device to receive and display a representation of a lesion found on the ablated organic tissue. Ablation systems incorporating the device and methods of using the device are also provided.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: June 24, 2003
    Assignee: Medtronic Inc.
    Inventors: David E. Francischelli, Scott E. Jahns, James R. Keogh
  • Patent number: 6558382
    Abstract: A suction assisted ablation device having a support surface, suction elements disposed adjacent the support surface, at least one electrode and at least one suction conduit is provided. The device may further include fluid openings, which allow fluid to irrigate target tissue and aid in ablation. A method for ablating tissue using suction is also provided.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: May 6, 2003
    Assignee: Medtronic, Inc.
    Inventors: Scott E. Jahns, Greg P. Werness, Jon M. Ocel, David Lipson, Donald N. Jensen, David E. Francischelli, James R. Keogh
  • Patent number: 6532388
    Abstract: A method of performing a medical procedure, such as surgery, is provided. A nerve is stimulated to adjust the beating of the heart to a first condition, such as a stopped or slowed condition. The medical procedure is performed on the heart or another organ. The stimulation of the nerve is stopped to adjust the beating of the heart to a second condition, such as a beating condition. The heart itself may also be stimulated to a beating condition, such as by pacing. The stimulation of the nerve may be continued to allow the medical procedure to be continued. Systems and devices for performing the medical procedure are also provided.
    Type: Grant
    Filed: September 26, 2000
    Date of Patent: March 11, 2003
    Assignee: Medtronic, Inc.
    Inventors: Michael R. S. Hill, Scott E. Jahns, James R. Keogh, David E. Euler, Michael R. Ujhelyi, Nancy J. Rakow
  • Publication number: 20030009127
    Abstract: The present invention generally relates to medical devices. Specifically, the invention pertains to implantable medical devices that produces gaseous agents from precursors and releases them into the body. More specifically, the invention provides for the controlled release of the gaseous agent to the body to produce a local or systemic therapeutic effect.
    Type: Application
    Filed: May 23, 2002
    Publication date: January 9, 2003
    Inventors: Paul V. Trescony, Kenneth E. Rohly, James R. Keogh, Darrell F. Untereker, Naim S. Istephanous
  • Publication number: 20020193843
    Abstract: A method of performing a medical procedure, such as surgery, is provided. The spinal cord is stimulated in order to control at least one physiological function. The medical procedure is performed and stimulation of the spinal cord is stopped.
    Type: Application
    Filed: August 9, 2002
    Publication date: December 19, 2002
    Inventors: Michael R.S. Hill, Scott E. Jahns, James R. Keogh
  • Publication number: 20020188325
    Abstract: A method of performing a medical procedure, such as surgery, is provided. A nerve is stimulated in order to adjust the beating of the heart to a first condition, such as a stopped or slowed condition. The medical procedure is performed on the heart or another organ. The stimulation of the nerve is stopped in order to adjust the beating of the heart to a second condition, such as a beating condition. The heart itself may also be stimulated to a beating condition, such as by pacing. The stimulation of the nerve may be continued in order to allow the medical procedure to be continued. Systems and devices for performing the medical procedure are also provided.
    Type: Application
    Filed: July 29, 2002
    Publication date: December 12, 2002
    Inventors: Michael R.S. Hill, Scott E. Jahns, James R. Keogh
  • Patent number: 6487446
    Abstract: A method of performing a medical procedure, such as surgery, is provided. The spinal cord is stimulated in order to control at least one physiological function. The medical procedure is performed and stimulation of the spinal cord is stopped.
    Type: Grant
    Filed: September 26, 2000
    Date of Patent: November 26, 2002
    Assignee: Medtronic, Inc.
    Inventors: Michael R.S. Hill, Scott E. Jahns, James R. Keogh
  • Publication number: 20020138109
    Abstract: This invention provides a system and method for positioning, manipulating, holding, grasping, immobilizing and/or stabilizing a heart including one or more tissue-engaging devices, one or more suction sources, one or more fluid sources, one or more energy sources, one or more sensors and one or more processors. The system and method may include an indifferent electrode, a drug delivery device and an illumination device. The system's tissue-engaging device may comprise a tissue-engaging head, a support apparatus and a clamping mechanism for attaching the tissue-engaging device to a stable object. The system may be used during various medical procedures including the deployment of an anastomotic device, intermittently stopping and starting of the heart, ablation of cardiac tissues and the placement of cardiac leads.
    Type: Application
    Filed: May 28, 2002
    Publication date: September 26, 2002
    Applicant: Medtronic, Inc.
    Inventors: James R. Keogh, Scott E. Jahns, Michael A. Colson, Gary W. Guenst, Christopher Olig, Paul A. Pignato, Karen Montpetit, Thomas Daigle, Douglas H. Gubbin, William G. O'Neill, Katherine Jolly
  • Patent number: 6449507
    Abstract: A method of performing a medical procedure, such as surgery, is provided. A nerve is stimulated in order to adjust the beating of the heart to a first condition, such as a stopped or slowed condition. The medical procedure is performed on the heart or another organ. The stimulation of the nerve is stopped in order to adjust the beating of the heart to a second condition, such as a beating condition. The heart itself may also be stimulated to a beating condition, such as by pacing. The stimulation of the nerve may be continued in order to allow the medical procedure to be continued. Systems and devices for performing the medical procedure are also provided.
    Type: Grant
    Filed: September 26, 2000
    Date of Patent: September 10, 2002
    Assignee: Medtronic, Inc.
    Inventors: Michael R. S. Hill, Scott E. Jahns, James R. Keogh
  • Patent number: 6447443
    Abstract: This invention provides a system and method for positioning, manipulating, holding, grasping, immobilizing and/or stabilizing a heart including one or more tissue-engaging devices, one or more suction sources, one or more fluid sources, one or more energy sources, one or more sensors and one or more processors. The system and method may include an indifferent electrode, a drug delivery device and an illumination device. The system's tissue-engaging device may comprise a tissue-engaging head, a support apparatus and a clamping mechanism for attaching the tissue-engaging device to a stable object. The system may be used during various medical procedures including the deployment of an anastomotic device, intermittently stopping and starting of the heart, ablation of cardiac tissues and the placement of cardiac leads.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: September 10, 2002
    Assignee: Medtronic, Inc.
    Inventors: James R. Keogh, Scott E. Jahns, Michael A. Colson, Gary W. Guenst, Christopher Olig, Paul A. Pignato, Karen Montpetit, Thomas Daigle, Douglas H. Gubbin, William G. O'Neill, Katherine Jolly
  • Publication number: 20020120333
    Abstract: A method for coating a medical device with a hydrophilic polymer is provided. One method of the present invention includes chemically binding under appropriate reaction conditions a hydrophilic polymer to a biomaterial surface. Another method of the present invention includes chemically binding under appropriate reaction conditions a hydrophilic polymer to a primer located on a biomaterial surface. Another method of the present invention includes chemically binding under appropriate reaction conditions a biomolecule to a hydrophilic polymer located on a biomaterial surface.
    Type: Application
    Filed: January 22, 2002
    Publication date: August 29, 2002
    Inventors: James R. Keogh, Paul V. Trescony, Michel Verhoeven, Edouard Koullick
  • Publication number: 20020095139
    Abstract: This invention provides a system and method for positioning, manipulating, holding, grasping, immobilizing and/or stabilizing a heart including one or more tissue-engaging devices, one or more suction sources, one or more fluid sources, one or more energy sources, one or more sensors and one or more processors. The system and method may include an indifferent electrode, a drug delivery device and an illumination device. The system's tissue-engaging device may comprise a tissue-engaging head, a support apparatus and a clamping mechanism for attaching the tissue-engaging device to a stable object. The system may be used during various medical procedures including the deployment of an anastomotic device, intermittently stopping and starting of the heart, ablation of cardiac tissues and the placement of cardiac leads.
    Type: Application
    Filed: June 12, 2001
    Publication date: July 18, 2002
    Inventors: James R. Keogh, Scott E. Jahns, Michael A. Colson, Gary W. Guenst, Christopher Olig, Paul A. Pignato, Karen Montpetit, Thomas Daigle, Douglas H. Gubbin, William G. O'Neill, Katherine Jolly
  • Publication number: 20020032468
    Abstract: A method of performing a medical procedure, such as surgery, is provided. A nerve is stimulated in order to adjust the beating of the heart to a first condition, such as a stopped or slowed condition. The medical procedure is performed on the heart or another organ. The stimulation of the nerve is stopped in order to adjust the beating of the heart to a second condition, such as a beating condition. The heart itself may also be stimulated to a beating condition, such as by pacing. The stimulation of the nerve may be continued in order to allow the medical procedure to be continued. Systems and devices for performing the medical procedure are also provided.
    Type: Application
    Filed: September 26, 2001
    Publication date: March 14, 2002
    Inventors: Michael R.S. Hill, Scott E. Jahns, James R. Keogh, David E. Euler, Michael R. Ujhelyi, Nancy J. Rakow, Michael A. Colson
  • Publication number: 20020001834
    Abstract: A method for making a medical device having at least one biomolecule immobilized on a substrate surface is provided. One method of the present invention includes immobilizing a biomolecule comprising an unsubstituted amide moiety on a biomaterial surface. Another method of the present invention includes immobilizing a biomolecule on a biomaterial surface comprising an unsubstituted amide moiety. Still another method of the present invention may be employed to crosslink biomolecules comprising unsubstituted amide moieties immobilized on medical device surfaces. Additionally, one method of the present invention may be employed to crosslink biomolecules comprising unsubstituted amide moieties in solution, thereby forming a crosslinked biomaterial or a crosslinked medical device coating.
    Type: Application
    Filed: February 24, 1999
    Publication date: January 3, 2002
    Inventors: JAMES R. KEOGH, PAUL V. TRESCONY
  • Publication number: 20020002372
    Abstract: A suction assisted ablation device having a support surface, suction elements disposed adjacent the support surface, at least one electrode and at least one suction conduit is provided. The device may further include fluid openings, which allow fluid to irrigate target tissue and aid in ablation. A method for ablating tissue using suction is also provided.
    Type: Application
    Filed: April 26, 2001
    Publication date: January 3, 2002
    Applicant: Medtronic, Inc.
    Inventors: Scott E. Jahns, Greg P. Werness, Jon M. Ocel, David Lipson, Donald N. Jensen, David E. Francischelli, James R. Keogh