Patents by Inventor Christopher Michael Williams

Christopher Michael Williams 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: 7966075
    Abstract: An energy management system that facilitates the transfer of high frequency energy induced on an implanted lead or a leadwire includes an energy dissipating surface associated with the implanted lead or the leadwire, a diversion or diverter circuit associated with the energy dissipating surface, and at least one switch for diverting energy in the implanted lead or the leadwire through the diversion circuit to the energy dissipating surface. In alternate configurations, the switch may be disposed between the implanted lead or the leadwire and the diversion circuit, or disposed so that it electrically opens the implanted lead or the leadwire when diverting energy through the diversion circuit to the energy dissipating surface. The switch may comprise a single or multi-pole double or single throw switch. The diversion circuit may be either a high pass filter or a low pass filter.
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: June 21, 2011
    Assignee: Greatbatch Ltd.
    Inventors: Robert Shawn Johnson, Warren S. Dabney, Robert A. Stevenson, Christopher Michael Williams, Holly Noelle Moschiano, Scott Brainard, Daniel Robert Kaiser, Henry R. Halperin, Albert C. Lardo
  • Patent number: 7957806
    Abstract: A shielded three-terminal flat-through EMI/energy dissipating filter includes an active electrode plate through which a circuit current passes between a first terminal and a second terminal, a first shield plate on a first side of the active electrode plate, and a second shield plate on a second side of the active electrode plate opposite the first shield plate. The first and second shield plates are conductively coupled to a grounded third terminal. In preferred embodiments, the active electrode plate and the shield plates are at least partially disposed with a hybrid flat-through substrate that may include a flex cable section, a rigid cable section, or both.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: June 7, 2011
    Assignee: Greatbatch Ltd.
    Inventors: Robert A. Stevenson, Buehl E. Truex, Richard L. Brendel, Christine A. Frysz, Warren S. Dabney, Haythem Hussein, Jose Luis Lorente-Adame, Robert Shawn Johnson, Scott Brainard, Christopher Michael Williams
  • Patent number: 7920916
    Abstract: One or more inductors and one or more capacitors are physically disposed relative to one another in series and are electrically connected to one another in parallel to form a bandstop filter. Chip inductors and chip capacitors having spaced apart conductive terminals are physically arranged in end-to-end abutting relation to minimize electrical potential between adjacent conductive terminals. The bandstop filter may be hermetically sealed within a biocompatible container for use with an implantable lead or electrode of a medical device. The values of the inductors and the capacitors are selected such that the bandstop filter is resonant at one or more selected frequencies, such as an MRI pulsed frequency.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: April 5, 2011
    Assignee: Greatbatch Ltd.
    Inventors: Robert Shawn Johnson, Kishore Kumar Kondabatni, Christopher Michael Williams, Ryan Thomas Bauer, Scott Brainard, Qingshan Ye, Warren S. Dabney, Robert A. Stevenson, Jeff Fleigle, Holly Noelle Moschiano
  • Publication number: 20110040343
    Abstract: An energy management system that facilitates the transfer of high frequency energy induced on an implanted lead or a leadwire includes an energy dissipating surface associated with the implanted lead or the leadwire, a diversion or diverter circuit associated with the energy dissipating surface, and at least one switch for diverting energy in the implanted lead or the leadwire through the diversion circuit to the energy dissipating surface. In alternate configurations, the switch may be disposed between the implanted lead or the leadwire and the diversion circuit, or disposed so that it electrically opens the implanted lead or the leadwire when diverting energy through the diversion circuit to the energy dissipating surface. The switch may comprise a single or multi-pole double or single throw switch. The diversion circuit may be either a high pass filter or a low pass filter.
    Type: Application
    Filed: November 3, 2010
    Publication date: February 17, 2011
    Applicant: GREATBATCH LTD.
    Inventors: Robert Shawn Johnson, Warren S. Dabney, Robert A. Stevenson, Christopher Michael Williams, Holly Noelle Moschiano, Scott Brainard, Daniel Robert Kaiser, Henry R. Halperin, Albert C. Lardo
  • Publication number: 20110022140
    Abstract: An energy management system facilitates the transfer of high frequency energy coupled into an implanted abandoned lead at a selected RF frequency or frequency band, to an energy dissipating surface. This is accomplished by conductively coupling the implanted abandoned lead to the energy dissipating surface of an abandoned lead cap through an energy diversion circuit including one or more passive electronic network components whose impedance characteristics are at least partially tuned to the implanted abandoned lead's impedance characteristics.
    Type: Application
    Filed: October 12, 2010
    Publication date: January 27, 2011
    Applicant: GREATBATCH LTD.
    Inventors: Robert A. Stevenson, Buehl E. Truex, Barry C. Muffoletto, Warren S. Dabney, Christine A. Frysz, Christopher Michael Williams, Holly Noelle Moschiano, Jeff Fleigle, Kishore Kumar Kondabatni, Richard L. Brendel, Robert Shawn Johnson, Scott Brainard, Henry R. Halperin, Albert C. Lardo
  • Publication number: 20110004283
    Abstract: A shielded three-terminal flat-through EMI/energy dissipating filter includes an active electrode plate through which a circuit current passes between a first terminal and a second terminal, a first shield plate on a first side of the active electrode plate, and a second shield plate on a second side of the active electrode plate opposite the first shield plate. The first and second shield plates are conductively coupled to a grounded third terminal. In preferred embodiments, the active electrode plate and the shield plates are at least partially disposed with a hybrid flat-through substrate that may include a flex cable section, a rigid cable section, or both.
    Type: Application
    Filed: September 27, 2010
    Publication date: January 6, 2011
    Applicant: GREATBATCH LTD.
    Inventors: Robert A. Stevenson, Buehl E. Truex, Richard L. Brendel, Christine A. Frysz, Warren S. Dabney, Haythem Hussein, Jose Luis Lorente-Adame, Robert Shawn Johnson, Scott Brainard, Christopher Michael Williams
  • Publication number: 20100324639
    Abstract: An energy management system facilitates the transfer of high frequency energy coupled into an implanted abandoned lead at a selected RF frequency or frequency band, to an energy dissipating surface. This is accomplished by conductively coupling the implanted abandoned lead to the energy dissipating surface of an abandoned lead cap through an energy diversion circuit including one or more passive electronic network components whose impedance characteristics are at least partially tuned to the implanted abandoned lead's impedance characteristics.
    Type: Application
    Filed: August 5, 2010
    Publication date: December 23, 2010
    Applicant: GREATBATCH LTD.
    Inventors: Robert A. Stevenson, Buehl E. Truex, Barry C. Muffoletto, Warren S. Dabney, Christine A. Frysz, Christopher Michael Williams, Holly Noelle Moschiano, Jeff Fleigle, Kishore Kumar Kondabatni, Richard L. Brendel, Robert Shawn Johnson, Scott Brainard, Henry R. Halperin, Albert C. Lardo
  • Publication number: 20100231327
    Abstract: One or more inductors and one or more capacitors are physically disposed relative to one another in series and are electrically connected to one another in parallel to form a bandstop filter. Chip inductors and chip capacitors having spaced apart conductive terminals are physically arranged in end-to-end abutting relation to minimize electrical potential between adjacent conductive terminals. The bandstop filter may be hermetically sealed within a biocompatible container for use with an implantable lead or electrode of a medical device. The values of the inductors and the capacitors are selected such that the bandstop filter is resonant at one or more selected frequencies, such as an MRI pulsed frequency.
    Type: Application
    Filed: June 7, 2010
    Publication date: September 16, 2010
    Applicant: GREATBATCH LTD.
    Inventors: Robert Shawn Johnson, Kishore Kumar Kondabatni, Christopher Michael Williams, Ryan Thomas Bauer, Scott Brainard, Qingshan Ye, Warren S. Dabney, Robert A. Stevenson, Jeff Fleigle, Holly Noelle Moschiano
  • Publication number: 20100208397
    Abstract: An energy management system that facilitates the transfer of high frequency energy induced on an implanted lead or a leadwire includes an energy dissipating surface associated with the implanted lead or the leadwire, a diversion or diverter circuit associated with the energy dissipating surface, and at least one switch disposed between the diversion circuit and the AIMD electronics for diverting energy in the implanted lead or the leadwire through the diversion circuit to the energy dissipating surface. The switch may comprise a single or multi-pole double or single throw switch. The diversion circuit may be either a high pass filter or a low pass filter.
    Type: Application
    Filed: March 25, 2010
    Publication date: August 19, 2010
    Applicant: GREATBATCH LTD.
    Inventors: Robert Shawn Johnson, Warren S. Dabney, Robert A. Stevenson, Christopher Michael Williams, Holly Noelle Moschiano, Scott Brainard
  • Publication number: 20100191236
    Abstract: An energy management system that facilitates the transfer of high frequency energy induced on an implanted lead or a leadwire includes an energy dissipating surface associated with the implanted lead or the leadwire, a diversion or diverter circuit associated with the energy dissipating surface, and at least one non-linear circuit element switch for diverting energy in the implanted lead or the leadwire through the diversion circuit to the energy dissipating surface. In alternate configurations, the switch may be disposed between the implanted lead or the leadwire and the diversion circuit, or disposed so that it electrically opens the implanted lead or the leadwire when diverting energy through the diversion circuit to the energy dissipating surface. The non-linear circuit element switch is typically a PIN diode. The diversion circuit may be either a high pass filter or a low pass filter.
    Type: Application
    Filed: February 17, 2010
    Publication date: July 29, 2010
    Applicant: GREATBATCH LTD.
    Inventors: Robert Shawn Johnson, Warren S. Dabney, Robert A. Stevenson, Christopher Michael Williams, Holly Noelle Moschiano, Scott Brainard, Daniel Robert Kaiser, Henry R. Halperin, Albert C. Lardo, Scott W. Kelley
  • Publication number: 20100174349
    Abstract: An energy management system facilitates the transfer of high frequency energy coupled into an implanted abandoned lead at a selected RF frequency or frequency band, to an energy dissipating surface. This is accomplished by conductively coupling the implanted abandoned lead to the energy dissipating surface of an abandoned lead cap through an energy diversion circuit including one or more passive electronic network components whose impedance characteristics are at least partially tuned to the implanted abandoned lead's impedance characteristics.
    Type: Application
    Filed: January 26, 2010
    Publication date: July 8, 2010
    Applicant: GREATBATCH LTD.
    Inventors: Robert A. Stevenson, Buehl E. Truex, Barry C. Muffoletto, Warren S. Dabney, Christine A. Frysz, Christopher Michael Williams, Holly Noelle Moschiano, Jeff Fleigle, Kishore Kumar Kondabatni, Richard L. Brendel, Robert Shawn Johnson, Scott Brainard, Henry R. Halperin, Albert C. Lardo
  • Publication number: 20100168821
    Abstract: An energy management system that facilitates the transfer of high frequency energy induced on an implanted lead or a leadwire includes an energy dissipating surface associated with the implanted lead or the leadwire, a diversion or diverter circuit associated with the energy dissipating surface, and at least one switch for diverting energy in the implanted lead or the leadwire through the diversion circuit to the energy dissipating surface. In alternate configurations, the switch may be disposed between the implanted lead or the leadwire and the diversion circuit, or disposed so that it electrically opens the implanted lead or the leadwire when diverting energy through the diversion circuit to the energy dissipating surface. The switch may comprise a single or multi-pole double or single throw switch. The diversion circuit may be either a high pass filter or a low pass filter.
    Type: Application
    Filed: January 12, 2010
    Publication date: July 1, 2010
    Applicant: GREATBATCH LTD.
    Inventors: Robert Shawn Johnson, Warren S. Dabney, Robert A. Stevenson, Christopher Michael Williams, Holly Noelle Moschiano, Scott Brainard, Daniel Robert Kaiser, Henry R. Halperin, Albert C. Lardo
  • Publication number: 20100160997
    Abstract: An energy management system facilitates the transfer of high frequency energy coupled into an implanted lead at a selected RF frequency or frequency band, to an energy dissipating surface. This is accomplished by conductively coupling the implanted lead to the energy dissipating surface through an energy diversion circuit including one or more passive electronic network components whose impedance characteristics are at least partially tuned to the implanted lead's impedance characteristics.
    Type: Application
    Filed: January 12, 2010
    Publication date: June 24, 2010
    Applicant: GREATBATCH LTD.
    Inventors: Robert Shawn Johnson, Warren S. Dabney, Robert A. Stevenson, Christopher Michael Williams, Holly Noelle Moschiano, Scott Brainard, Daniel Robert Kaiser, Henry R. Halperin, Albert C. Lardo
  • Publication number: 20100100164
    Abstract: One or more inductors and one or more capacitors are physically disposed relative to one another in series and are electrically connected to one another in parallel to form a bandstop filter. Chip inductors and chip capacitors having spaced apart conductive terminals are physically arranged in end-to-end abutting relation to minimize electrical potential between adjacent conductive terminals. The bandstop filter may be hermetically sealed within a biocompatible container for use with an implantable lead or electrode of a medical device. The values of the inductors and the capacitors are selected such that the bandstop filter is resonant at one or more selected frequencies, such as an MRI pulsed frequency.
    Type: Application
    Filed: October 28, 2009
    Publication date: April 22, 2010
    Applicant: GREATBATCH LTD.
    Inventors: Robert Shawn Johnson, Kishore Kumar Kondabatni, Christopher Michael Williams, Ryan Thomas Bauer, Scott Brainard, Qingshan Ye, Warren S. Dabney, Robert A. Stevenson, Jeff Fleigle, Holly Noelle Moschiano