Patents by Inventor Chad M. Greenlaw

Chad M. Greenlaw 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: 10154878
    Abstract: An electrosurgical balloon includes an inflatable balloon body formed of a non-conductive substrate material. One or more electrodes are disposed on an exterior surface of the balloon body. The electrodes can include a pair of bipolar electrodes, and the balloon body can have at least one fluid outlet hole configured to provide fluid to the pair of bipolar electrodes. A second inflatable balloon body can be disposed inside the first inflatable balloon body. The electrosurgical balloon can be incorporated into a catheter assembly, in which the electrosurgical balloon is a balloon electrode tip at a distal end of a catheter.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: December 18, 2018
    Assignee: Medtronic Advanced Energy LLC
    Inventors: Eliot F. Bloom, Vaclav O. Podany, Chad M. Greenlaw, Brian M. Conley
  • Publication number: 20180250062
    Abstract: A cartridge assembly to couple an electrosurgical device to treat tissue with an electro surgical unit includes a cartridge member to operate with a power delivery apparatus of the electro surgical unit and a fluid delivery apparatus of the electro surgical unit. An electrosurgical unit includes a power delivery apparatus and a fluid delivery apparatus arranged to operate with a cartridge member to be located in a cartridge receptacle of the electrosurgical unit. An electrosurgical device includes a first electrode spaced alongside the second electrode, with each electrode having a blade shaped member. Each blade shaped member has opposing sides bounded by edges, with the edges having a medial edge and a lateral edge. At least one fluid outlet is adjacent each blade shaped member, and each fluid outlet is in fluid communication with a fluid passage.
    Type: Application
    Filed: March 15, 2018
    Publication date: September 6, 2018
    Inventors: Eliot F. BLOOM, Brian M. CONLEY, Jonathan J. BARRY, Roger D. GREELEY, Steven G. MILLER, Chad M. GREENLAW
  • Patent number: 9943356
    Abstract: An electrosurgical device includes a first electrode spaced alongside a second electrode. The device can be operated as either a bipolar device or a monopolar device and includes a switch to inhibit capacitive coupling to one of the electrodes when the other electrode is used in monopolar fashion.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: April 17, 2018
    Assignee: MEDTRONIC ADVANCED ENERGY LLC
    Inventors: Eliot F. Bloom, Brian M. Conley, Jonathan J. Barry, Roger D. Greeley, Steven G. Miller, Chad M. Greenlaw
  • Publication number: 20170340383
    Abstract: An electrosurgical balloon includes an inflatable balloon body formed of a non-conductive substrate material. One or more electrodes are disposed on an exterior surface of the balloon body. The electrodes can include a pair of bipolar electrodes, and the balloon body can have at least one fluid outlet hole configured to provide fluid to the pair of bipolar electrodes. A second inflatable balloon body can be disposed inside the first inflatable balloon body. The electrosurgical balloon can be incorporated into a catheter assembly, in which the electrosurgical balloon is a balloon electrode tip at a distal end of a catheter.
    Type: Application
    Filed: August 1, 2017
    Publication date: November 30, 2017
    Inventors: Eliot F. BLOOM, Vaclav O. PODANY, Chad M. GREENLAW, Brian M. CONLEY
  • Patent number: 9750565
    Abstract: An electrosurgical balloon includes an inflatable balloon body formed of a non-conductive substrate material. One or more electrodes are disposed on an exterior surface of the balloon body. The electrodes can include a pair of bipolar electrodes, and the balloon body can have at least one fluid outlet hole configured to provide fluid to the pair of bipolar electrodes. A second inflatable balloon body can be disposed inside the first inflatable balloon body. The electrosurgical balloon can be incorporated into a catheter assembly, in which the electrosurgical balloon is a balloon electrode tip at a distal end of a catheter.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: September 5, 2017
    Assignee: Medtronic Advanced Energy LLC
    Inventors: Eliot F. Bloom, Vaclav O. Podany, Chad M. Greenlaw, Brian M. Conley
  • Patent number: 9445858
    Abstract: A bipolar electrosurgical device is disclosed. The bipolar electrosurgical device includes a handle having a shaft and a distal end. The handle can be coupled to a source of electrical energy and a fluid source. A U-shaped first electrode extends distally in a plane from a pair of openings on the distal end of the shaft. The first electrode is in electrical communication with one of an active pole or a return pole of the source of electrical energy. A longitudinal second electrode extends distally from a middle opening on the distal end of the shaft. The second electrode is coplanar to the first electrode and electrically isolated from the first electrode. The second electrode is in electrical communication with the other of the active pole or the return pole of the source of electrical energy. The second electrode forms a lumen configured to be in fluid communication with the fluid source and a fluid opening for dispersing fluid.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: September 20, 2016
    Assignee: MEDTRONIC ADVANCED ENERGY LLC
    Inventors: Brian M. Conley, Jonathan J. Barry, Roger D. Greeley, Chad M. Greenlaw, Lorenzo C. Vaccarella, Joseph Sylvester
  • Patent number: 9333027
    Abstract: A method of producing an electrosurgical device is disclosed. Opposing longitudinal clamshells are formed, and each clamshell includes a face having a generally planar major portion. Longitudinal grooves are formed in a clamshell, and an electrical conductor in a disposed in a groove. The faces are aligned to form an electrical passage including the electrical conductor in the groove and a spaced-apart fluid passage with another groove. The clamshells are welded together to form a shaft member such that the electrical passage and the fluid passage are fluid tight along a major longitudinal portion of the shaft. Electrodes are attached to the distal end of the shaft and are in electrical communication with the electrical conductor.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: May 10, 2016
    Assignee: MEDTRONIC ADVANCED ENERGY LLC
    Inventors: Eliot F. Bloom, Lorenzo C. Vaccarella, Chad M. Greenlaw, Roger D. Greeley, Steven G. Miller
  • Publication number: 20150157386
    Abstract: A cartridge assembly to couple an electrosurgical device to treat tissue with an electro surgical unit includes a cartridge member to operate with a power delivery apparatus of the electro surgical unit and a fluid delivery apparatus of the electro surgical unit. An electrosurgical unit includes a power delivery apparatus and a fluid delivery apparatus arranged to operate with a cartridge member to be located in a cartridge receptacle of the electrosurgical unit. An electrosurgical device includes a first electrode spaced alongside the second electrode, with each electrode having a blade shaped member. Each blade shaped member has opposing sides bounded by edges, with the edges having a medial edge and a lateral edge. At least one fluid outlet is adjacent each blade shaped member, and each fluid outlet is in fluid communication with a fluid passage.
    Type: Application
    Filed: January 9, 2015
    Publication date: June 11, 2015
    Inventors: Eliot F. BLOOM, Brian M. CONLEY, Jonathan J. BARRY, Roger D. GREELEY, Steven G. MILLER, Chad M. GREENLAW
  • Patent number: 9050113
    Abstract: A cartridge assembly to couple an electrosurgical device to treat tissue with an electrosurgical unit includes a cartridge member to operate with a power delivery apparatus of the electrosurgical unit and a fluid delivery apparatus of the electrosurgical unit. An electrosurgical unit includes a power delivery apparatus and a fluid delivery apparatus arranged to operate with a cartridge member to be located in a cartridge receptacle of the electrosurgical unit. An electrosurgical device includes a first electrode spaced alongside the second electrode, with each electrode having a blade shaped member. Each blade shaped member has opposing sides bounded by edges, with the edges having a medial edge and a lateral edge. At least one fluid outlet is adjacent each blade shaped member, and each fluid outlet is in fluid communication with a fluid passage.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: June 9, 2015
    Assignee: MEDTRONIC ADVANCED ENERGY LLC
    Inventors: Eliot F. Bloom, Brian M. Conley, Jonathan J. Barry, Roger D. Greeley, Steven G. Miller, Chad M. Greenlaw
  • Patent number: 8920417
    Abstract: In some embodiments, an electrosurgical device includes a shaft, a first U-shaped electrode at a distal end of the shaft, and a second blade shaped electrode at the distal end of the shaft. The second electrode includes a spherical distal end. And the second electrode is substantially coplanar with the first electrode such that the first electrode surrounds a perimeter of the second electrode. The second electrode is spaced from the first electrode by an aperture. In some embodiments, an electrosurgical device includes a shaft, a first electrode at a distal end of the shaft defining an aperture and comprising a pointed tip, and a second electrode disposed at the distal end of the shaft that is substantially coplanar with the first electrode such that the first electrode surrounds a perimeter of the second electrode. The second electrode is spaced from the first electrode by the aperture.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: December 30, 2014
    Assignee: Medtronic Advanced Energy LLC
    Inventors: Brian M. Conley, Jonathan J. Barry, Roger D. Greeley, Chad M. Greenlaw, Lorenzo C. Vaccarella, Joseph Sylvester
  • Patent number: 8906012
    Abstract: The invention provides an electrosurgical device and methods of use thereof. In one embodiment, the device may comprise a handle, a shaft distal to the handle, a first electrode tip and a second electrode tip adjacent a distal end of the shaft, with the first electrode tip spaced from the second electrode tip and wherein the first electrode tip comprises a first U-shaped electrode and the second electrode tip comprises a second U-shaped electrode, and at least one fluid outlet. In another embodiment, the device may comprise a handle, a shaft distal to the handle, and a first electrode and a second electrode adjacent a distal end of the shaft with the first electrode coplanar with the second electrode and comprising a wire electrode having a U-shape which surrounds a perimeter of the second electrode and is spaced from the second electrode by an aperture.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: December 9, 2014
    Assignee: Medtronic Advanced Energy LLC
    Inventors: Brian M. Conley, Jonathan J. Barry, Roger D. Greeley, Chad M. Greenlaw
  • Patent number: 8882756
    Abstract: The invention provides a bipolar electrosurgical device to treat tissue in a presence of radio frequency energy and a fluid provided from the device. In one embodiment, the device comprises a first electrode and a second electrode at the end of a malleable shaft assembly to be hand shapeable by a user of the device, and at least one fluid outlet. The malleable shaft assembly comprises a first shaft and a second shaft, a length of the first shaft and a length of the second shaft in an outer member comprising a polymer, and at least a portion of the first shaft and at least a portion of the second shaft being malleable.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: November 11, 2014
    Assignee: Medtronic Advanced Energy LLC
    Inventors: Roger D. Greeley, Steven G. Miller, Vaclav O. Podany, Brian M. Conley, Chad M. Greenlaw
  • Publication number: 20140188105
    Abstract: A bipolar electrosurgical device is disclosed. The bipolar electrosurgical device includes a handle having a shaft and a distal end. The handle can be coupled to a source of electrical energy and a fluid source. A U-shaped first electrode extends distally in a plane from a pair of openings on the distal end of the shaft. The first electrode is in electrical communication with one of an active pole or a return pole of the source of electrical energy. A longitudinal second electrode extends distally from a middle opening on the distal end of the shaft. The second electrode is coplanar to the first electrode and electrically isolated from the first electrode. The second electrode is in electrical communication with the other of the active pole or the return pole of the source of electrical energy. The second electrode forms a lumen configured to be in fluid communication with the fluid source and a fluid opening for dispersing fluid.
    Type: Application
    Filed: March 5, 2014
    Publication date: July 3, 2014
    Applicant: Medtronic Advanced Energy LLC
    Inventors: Brian M. Conley, Jonathan J. Barry, Roger D. Greeley, Chad M. Greenlaw, Lorenzo C. Vaccarella, Joseph Sylvester
  • Publication number: 20140039493
    Abstract: In some embodiments, an electrosurgical device includes a shaft, a first U-shaped electrode at a distal end of the shaft, and a second blade shaped electrode at the distal end of the shaft. The second electrode includes a spherical distal end. And the second electrode is substantially coplanar with the first electrode such that the first electrode surrounds a perimeter of the second electrode. The second electrode is spaced from the first electrode by an aperture. In some embodiments, an electrosurgical device includes a shaft, a first electrode at a distal end of the shaft defining an aperture and comprising a pointed tip, and a second electrode disposed at the distal end of the shaft that is substantially coplanar with the first electrode such that the first electrode surrounds a perimeter of the second electrode. The second electrode is spaced from the first electrode by the aperture.
    Type: Application
    Filed: December 28, 2012
    Publication date: February 6, 2014
    Inventors: Brian M. CONLEY, Jonathan J. BARRY, Roger D. GREELEY, Chad M. GREENLAW, Lorenzo C. VACCARELLA, Joseph SYLVESTER
  • Publication number: 20140026395
    Abstract: A method of producing an electrosurgical device is disclosed. Opposing longitudinal clamshells are formed, and each clamshell includes a face having a generally planar major portion. Longitudinal grooves are formed in a clamshell, and an electrical conductor in a disposed in a groove. The faces are aligned to form an electrical passage including the electrical conductor in the groove and a spaced-apart fluid passage with another groove. The clamshells are welded together to form a shaft member such that the electrical passage and the fluid passage are fluid tight along a major longitudinal portion of the shaft. Electrodes are attached to the distal end of the shaft and are in electrical communication with the electrical conductor.
    Type: Application
    Filed: October 3, 2013
    Publication date: January 30, 2014
    Applicant: MEDTRONIC ADVANCED ENERGY LLC
    Inventors: Eliot F. Bloom, Lorenzo C. Vaccarella, Chad M. Greenlaw, Roger D. Greeley, Steven G. Miller
  • Publication number: 20130085493
    Abstract: An electrosurgical balloon includes an inflatable balloon body formed of a non-conductive substrate material. One or more electrodes are disposed on an exterior surface of the balloon body. The electrodes can include a pair of bipolar electrodes, and the balloon body can have at least one fluid outlet hole configured to provide fluid to the pair of bipolar electrodes. A second inflatable balloon body can be disposed inside the first inflatable balloon body. The electrosurgical balloon can be incorporated into a catheter assembly, in which the electrosurgical balloon is a balloon electrode tip at a distal end of a catheter.
    Type: Application
    Filed: September 30, 2011
    Publication date: April 4, 2013
    Applicant: Salient Surgical Technologies, Inc.
    Inventors: Eliot F. Bloom, Vaclav O. Podany, Chad M. Greenlaw, Brian M. Conley
  • Publication number: 20120150165
    Abstract: A bipolar electrosurgical device includes a shaft and an electrode tip coupled to a distal end of the shaft. At least a portion of the electrode tip extends distally beyond the distal end of the shaft and includes an insulator extending between a first electrode and a second electrode. The first electrode is configured to he an active electrode and the second electrode is configured to be a return electrode. The electrode tip can include a substantially conically-shaped portion, or can include a spherical portion and a cylindrical portion protruding from the spherical portion at a non-zero angle with respect to a longitudinal axis of the shaft. The substantially conically-shaped portion can include at least a portion of one of the first electrode and the second electrode. The distal end of the shaft can include a fluid outlet opening to provide fluid from a fluid source onto the first electrode and the second electrode.
    Type: Application
    Filed: December 10, 2010
    Publication date: June 14, 2012
    Applicant: Salient Surgical Technologies, Inc.
    Inventors: Brian M. Conley, Chad M. Greenlaw, John W. Berry, Joseph F. Army
  • Publication number: 20120004657
    Abstract: The invention provides an electrosurgical device and methods of use thereof. In one embodiment, the device may comprise a handle, a shaft distal to the handle, a first electrode tip and a second electrode tip adjacent a distal end of the shaft, with the first electrode tip spaced from the second electrode tip and wherein the first electrode tip comprises a first U-shaped electrode and the second electrode tip comprises a second U-shaped electrode, and at least one fluid outlet. In another embodiment, the device may comprise a handle, a shaft distal to the handle, and a first electrode and a second electrode adjacent a distal end of the shaft with the first electrode coplanar with the second electrode and comprising a wire electrode having a U-shape which surrounds a perimeter of the second electrode and is spaced from the second electrode by an aperture.
    Type: Application
    Filed: June 30, 2010
    Publication date: January 5, 2012
    Applicant: SALIENT SURGICAL TECHNOLOGIES, INC.
    Inventors: Brian M. CONLEY, Jonathan J. BARRY, Roger D. GREELEY, Chad M. GREENLAW
  • Publication number: 20110295249
    Abstract: This invention provides a fluid-assisted electrosurgical device to treat tissue in a presence of radio frequency energy and a fluid provided from the device. The device comprises a handle, a rigid shaft member distal to the handle, and at least one electrode distal to the shaft member. The shaft member comprises a shaft member first body and a shaft member second body joined together along a length of the shaft member. The shaft member further comprises a plurality of longitudinally oriented shaft member passages, with each of the passages having a length defined by the shaft member first body and the shaft member second body.
    Type: Application
    Filed: May 28, 2010
    Publication date: December 1, 2011
    Applicant: SALIENT SURGICAL TECHNOLOGIES, INC.
    Inventors: Eliot F. BLOOM, Lorenzo C. VACCARELLA, Chad M. GREENLAW, Roger D. GREELEY, Steven G. MILLER
  • Publication number: 20110178515
    Abstract: A cartridge assembly to couple an electrosurgical device to treat tissue with an electrosurgical unit includes a cartridge member to operate with a power delivery apparatus of the electrosurgical unit and a fluid delivery apparatus of the electrosurgical unit. An electrosurgical unit includes a power delivery apparatus and a fluid delivery apparatus arranged to operate with a cartridge member to be located in a cartridge receptacle of the electrosurgical unit. An electrosurgical device includes a first electrode spaced alongside the second electrode, with each electrode having a blade shaped member. Each blade shaped member has opposing sides bounded by edges, with the edges having a medial edge and a lateral edge. At least one fluid outlet is adjacent each blade shaped member, and each fluid outlet is in fluid communication with a fluid passage.
    Type: Application
    Filed: January 14, 2011
    Publication date: July 21, 2011
    Inventors: Eliot F. BLOOM, Brian M. CONLEY, Jonathan J. BARRY, Roger D. GREELEY, Steven G. MILLER, Chad M. GREENLAW