Patents by Inventor Craig Keller

Craig Keller 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: 20190389435
    Abstract: A device and method for dispensing air and/or sealant to a tire of a vehicle. Power supply for the air compressor is obtained via powered USB instead of the typical 12 V cigarette lighter connector. The position of the tire which is being inflated can also be determined via the data interface of the USB port. By communication between compressor and the vehicle systems interface, the compressor can automatically switch off when the recommended tire pressure has been reached.
    Type: Application
    Filed: June 5, 2019
    Publication date: December 26, 2019
    Applicant: Illinois Tool Works Inc.
    Inventors: Martin Patrick Spindler, William Craig Keller
  • Publication number: 20190269206
    Abstract: A locking slide clip includes a C-shaped body and a door. The C-shaped body defines an opening in communication with a slot. The door is pivotably engaged with the C-shaped body opposite the slot and includes a protrusion.
    Type: Application
    Filed: January 24, 2019
    Publication date: September 5, 2019
    Inventors: Scott David Kolasa, Steven Craig Keller, Michael Wesley Havran, Eric William Millward
  • Patent number: 10342601
    Abstract: An end effector assembly for an electrosurgical device includes first and second jaw members movable between spaced-apart and approximated positions for grasping tissue therebetween. The jaw members cooperate to define a tissue grasping area. One or both of the jaw members includes an inner electrode. One or both of the jaw members includes first and second outer electrodes disposed on either side of the inner electrode. The inner and outer electrodes are configured to conduct energy through tissue grasped within the tissue grasping area to seal tissue. The inner and outer electrodes define different configurations such that, upon conduction of energy through tissue grasped within the tissue grasping area, tissue disposed adjacent the outer electrodes is boiled before boiling of tissue disposed adjacent the inner electrodes.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: July 9, 2019
    Assignee: COVIDIEN LP
    Inventors: Craig A. Keller, Guillaume Lessard, Richard M. Ferrell
  • Patent number: 10278768
    Abstract: An end effector assembly for an electrosurgical device includes first and second jaw members movable between spaced-apart and approximated positions. The jaw members define opposed tissue-contacting surfaces that cooperate to define a tissue grasping area within which tissue is grasped when the jaw members are moved to the approximated position. At least one of the jaw members includes an interior electrode and at least one of the jaw members includes first and second exterior electrodes. The interior and exterior electrodes are configured to conduct energy through tissue grasped within the tissue grasping area to seal tissue. The interior electrodes are disposed interiorly of outer bounds of the tissue grasping area, while the exterior electrodes are disposed exteriorly. As a result, upon conduction of energy through tissue grasped within the tissue grasping area, tissue disposed adjacent the exterior electrodes is boiled before boiling of tissue disposed adjacent the interior electrodes.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: May 7, 2019
    Assignee: COVIDIEN LP
    Inventors: Craig A. Keller, Guillaume Lessard, Richard M. Ferrell
  • Publication number: 20190076182
    Abstract: A method of sealing tissue includes providing an end effector assembly including first and second jaw members. One or both of the jaw members includes an interior electrode and one or both of the jaw members includes first and second exterior electrodes disposed on either side of the interior electrode. The method further includes grasping tissue between the first and second jaw members and conducting energy between the interior and exterior electrodes to seal tissue grasped between the first and second jaw members. During tissue sealing, tissue disposed adjacent the exterior electrodes boils faster than tissue disposed adjacent the interior electrodes.
    Type: Application
    Filed: November 8, 2018
    Publication date: March 14, 2019
    Inventors: CRAIG A. KELLER, GUILLAUME LESSARD, RICHARD M. FERRELL
  • Patent number: 10154872
    Abstract: A medical device for treating tissue includes a tissue-contacting surface and a solid state heating element that is thermally coupled to the tissue-contacting surface. The solid state heating element is configured to generate heat to thermally treat tissue.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: December 18, 2018
    Assignee: COVIDIEN LP
    Inventors: Craig A. Keller, Robert B. Smith
  • Patent number: 10123835
    Abstract: A method of sealing tissue includes providing an end effector assembly including first and second jaw members. One or both of the jaw members includes an interior electrode and one or both of the jaw members includes first and second exterior electrodes disposed on either side of the interior electrode. The method further includes grasping tissue between the first and second jaw members and conducting energy between the interior and exterior electrodes to seal tissue grasped between the first and second jaw members. During tissue sealing, tissue disposed adjacent the exterior electrodes boils faster than tissue disposed adjacent the interior electrodes.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: November 13, 2018
    Assignee: COVIDIEN LP
    Inventors: Craig A. Keller, Guillaume Lessard, Richard M. Ferrell
  • Publication number: 20180296272
    Abstract: The present disclosure is directed towards a medical instrument. The medical instrument includes a housing and an end effector assembly operably connected to the housing. The end effector assembly includes first and second jaw members each having a tissue contacting surface, at least one of the first and second jaw members movable between a first, spaced-apart position and a second proximate position, wherein in the second position, the jaw members cooperate to define a cavity configured to receive tissue between the jaw members. The end effector also includes at least one light-emitting element coupled to at least one of the first and second jaw members, the at least one light-emitting element adapted to deliver light energy to tissue grasped between the first and second jaw members to treat the tissue.
    Type: Application
    Filed: June 19, 2018
    Publication date: October 18, 2018
    Inventors: WILLIAM H. NAU, JR., CRAIG A. KELLER, DUANE E. KERR
  • Publication number: 20180250067
    Abstract: An end effector assembly for an electrosurgical device includes first and second jaw members movable between spaced-apart and approximated positions. The jaw members include tissue-contacting surfaces that define a tissue grasping area. One of the jaw members includes an electrically-insulating body, an interior electrode, and an exterior electrode. The interior electrode is positioned interiorly of outer bounds of the tissue grasping area. A portion of the interior electrode forms part of the tissue-contacting surface. The exterior electrode is positioned exteriorly of the outer bounds of the tissue grasping area. At least one portion of the exterior electrode: extends along the outer back surface of the body, is disposed within the body, and is positioned adjacent the outer bounds of the tissue grasping area. The interior and exterior electrodes are configured to conduct energy through tissue grasped within the tissue grasping area to seal tissue.
    Type: Application
    Filed: May 4, 2018
    Publication date: September 6, 2018
    Inventors: CRAIG A. KELLER, GUILLAUME LESSARD, RICHARD M. FERRELL
  • Patent number: 10058377
    Abstract: An end effector assembly for an electrosurgical device includes first and second jaw members movable between spaced-apart and approximated positions. The jaw members include tissue-contacting surfaces that define a tissue grasping area. One of the jaw members includes an electrically-insulating body, an interior electrode, and an exterior electrode. The interior electrode is positioned interiorly of outer bounds of the tissue grasping area. A portion of the interior electrode forms part of the tissue-contacting surface. The exterior electrode is positioned exteriorly of the outer bounds of the tissue grasping area. At least one portion of the exterior electrode: extends along the outer back surface of the body, is disposed within the body, and is positioned adjacent the outer bounds of the tissue grasping area. The interior and exterior electrodes are configured to conduct energy through tissue grasped within the tissue grasping area to seal tissue.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: August 28, 2018
    Assignee: COVIDIEN LP
    Inventors: Craig A. Keller, Guillaume Lessard, Richard M. Ferrell
  • Publication number: 20180193096
    Abstract: The present disclosure is directed towards a medical instrument. The medical instrument includes a housing and an end effector assembly operably connected to the housing. The end effector assembly includes first and second jaw members each having a tissue contacting surface, at least one of the first and second jaw members movable between a first, spaced-apart position and a second proximate position, wherein in the second position, the jaw members cooperate to define a cavity configured to receive tissue between the jaw members. The end effector also includes at least one light-emitting element coupled to at least one of the first and second jaw members, the at least one light-emitting element adapted to deliver light energy to tissue grasped between the first and second jaw members to treat the tissue.
    Type: Application
    Filed: March 6, 2018
    Publication date: July 12, 2018
    Inventors: WILLIAM H. NAU, JR., CRAIG A. KELLER, DUANE E. KERR
  • Patent number: 9925008
    Abstract: The present disclosure is directed towards a medical instrument. The medical instrument includes a housing and an end effector assembly operably connected to the housing. The end effector assembly includes first and second jaw members each having a tissue contacting surface, at least one of the first and second jaw members movable between a first, spaced-apart position and a second proximate position, wherein in the second position, the jaw members cooperate to define a cavity configured to receive tissue between the jaw members. The end effector also includes at least one light-emitting element coupled to at least one of the first and second jaw members, the at least one light-emitting element adapted to deliver light energy to tissue grasped between the first and second jaw members to treat the tissue.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: March 27, 2018
    Assignee: COVIDIEN LP
    Inventors: William H. Nau, Jr., Craig A. Keller, Duane E. Kerr
  • Publication number: 20170281257
    Abstract: A medical device includes an energy-generating unit configured to produce energy for conduction through tissue to treat tissue. Waste heat produced by the energy-generating unit during energy production is conducted to tissue to facilitate treating tissue.
    Type: Application
    Filed: June 15, 2017
    Publication date: October 5, 2017
    Inventor: CRAIG A. KELLER
  • Patent number: 9724157
    Abstract: A system for monitoring the target tissue during a tissue sealing procedure is disclosed. The system includes a forceps having opposing jaw members movable from a first position in spaced relation relative to one another to at least one subsequent position wherein the jaw members cooperate to grasp the tissue therebetween. Each of the jaw members includes a sealing member. The system also includes a generator coupled to the sealing members so that therapeutic energy is delivered to the target tissue. The generator includes an output stage configured to generate therapeutic energy and a microwave detector configured to measure reflected and/or absorbed microwave signals. The monitored microwave signals may be either the therapeutic energy signal or a separate non-therapeutic microwave monitoring signal. The generator also includes a controller operatively coupled to the microwave detector.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: August 8, 2017
    Assignee: COVIDIEN LP
    Inventor: Craig A. Keller
  • Publication number: 20170181797
    Abstract: The present disclosure is directed towards a medical instrument. The medical instrument includes a housing and an end effector assembly operably connected to the housing. The end effector assembly includes first and second jaw members each having a tissue contacting surface, at least one of the first and second jaw members movable between a first, spaced-apart position and a second proximate position, wherein in the second position, the jaw members cooperate to define a cavity configured to receive tissue between the jaw members. The end effector also includes at least one light-emitting element coupled to at least one of the first and second jaw members, the at least one light-emitting element adapted to deliver light energy to tissue grasped between the first and second jaw members to treat the tissue.
    Type: Application
    Filed: March 14, 2017
    Publication date: June 29, 2017
    Inventors: WILLIAM H. NAU, JR., CRAIG A. KELLER, DUANE E. KERR
  • Patent number: 9687290
    Abstract: A medical device includes an energy-generating unit configured to produce energy for conduction through tissue to treat tissue. Waste heat produced by the energy-generating unit during energy production is conducted to tissue to facilitate treating tissue.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: June 27, 2017
    Assignee: COVIDIEN LP
    Inventor: Craig A. Keller
  • Patent number: 9610121
    Abstract: The present disclosure is directed towards a medical instrument. The medical instrument includes a housing and an end effector assembly operably connected to the housing. The end effector assembly includes first and second jaw members each having a tissue contacting surface, at least one of the first and second jaw members movable between a first, spaced-apart position and a second proximate position, wherein in the second position, the jaw members cooperate to define a cavity configured to receive tissue between the jaw members. The end effector also includes at least one light-emitting element coupled to at least one of the first and second jaw members, the at least one light-emitting element adapted to deliver light energy to tissue grasped between the first and second jaw members to treat the tissue.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: April 4, 2017
    Assignee: COVIDIEN LP
    Inventors: William H. Nau, Jr., Craig A. Keller, Duane E. Kerr
  • Publication number: 20170065328
    Abstract: Controlling a level of electrosurgical energy provided to tissue based on detected arcing patterns or impedance changes. The drag force imposed on an electrode or blade of an electrosurgical instrument may be controlled by adjusting the level of electrosurgical energy based on the arcing patterns or impedance changes. The arcing patterns or impedance changes may be detected by sensing and analyzing voltage and/or current waveforms of the electrosurgical energy. The current and/or voltage waveform analysis may involve calculating impedance based on the voltage and current waveforms and calculating changes in impedance over time. The waveform analysis may involve detecting harmonic distortion using FFTs, DFTs, Goertzel filters, polyphase demodulation techniques, and/or bandpass filters. The waveform analysis may involve determining a normalized difference or the average phase difference between the voltage and current waveforms.
    Type: Application
    Filed: November 17, 2016
    Publication date: March 9, 2017
    Inventors: ROBERT H. WHAM, JAMES A. GILBERT, CRAIG A. KELLER, BRIAN L. ROBERTS
  • Publication number: 20160338756
    Abstract: A medical device for treating tissue includes a tissue-contacting surface and a solid state heating element that is thermally coupled to the tissue-contacting surface. The solid state heating element is configured to generate heat to thermally treat tissue.
    Type: Application
    Filed: August 4, 2016
    Publication date: November 24, 2016
    Inventors: CRAIG A. KELLER, ROBERT B. SMITH
  • Patent number: 9498275
    Abstract: Controlling a level of electrosurgical energy provided to tissue based on detected arcing patterns or impedance changes. The drag force imposed on an electrode or blade of an electrosurgical instrument may be controlled by adjusting the level of electrosurgical energy based on the arcing patterns or impedance changes. The arcing patterns or impedance changes may be detected by sensing and analyzing voltage and/or current waveforms of the electrosurgical energy The current and/or voltage waveform analysis may involve calculating impedance based on the voltage and current waveforms and calculating changes in impedance over time. The waveform analysis may involve detecting harmonic distortion using FFTs, DFTs, Goertzel filters, polyphase demodulation techniques, and/or bandpass filters. The waveform analysis may involve determining a normalized difference or the average phase difference between the voltage and current waveforms.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: November 22, 2016
    Assignee: COVIDIEN LP
    Inventors: Robert H. Wham, James A. Gilbert, Craig A. Keller, Brian L. Roberts