Patents by Inventor John R. Dugan

John R. Dugan 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: 11896223
    Abstract: Surgical instruments and end effectors therefor are disclosed. In various implementations, the surgical instrument includes a surgical end effector that comprises a lower jaw and an upper jaw that are supported for movable travel toward and away from each other. The instrument may further include a firing member that is operably supported for selective operable travel within the surgical end effector. The instrument may also include a first jaw closure system that operably interfaces with the lower jaw and is configured to selectively move the lower jaw relative to the upper jaw. A second jaw closure system operably interfaces with the upper jaw and is configured to selectively move the upper jaw relative to the lower jaw. A firing system operably interfaces with the firing member and is configured to apply firing motions to the firing member to move the firing member within the end effector.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: February 13, 2024
    Assignee: Cilag GmbH International
    Inventors: Chester O. Baxter, III, Frederick E. Shelton, IV, John R. Dugan
  • Patent number: 11832841
    Abstract: Methods and devices for using surgical devices with articulating end effectors are provided. Surgical devices with articulating end effectors can provide rotary driven pivoting of the end effector. In some embodiments, the device can include a handle, a first and a second tube extending from the handle, the second tube disposed within the first tube, and an end effector that includes a pair of distal jaws configured to move in response to rotation of the first tube about a longitudinal axis thereof and rotation of the second tube about a longitudinal axis thereof. The jaws can move in two different ways depending on whether the first and second tubes are rotating in a same direction as one another or in different ways than each other. The jaws can open/close and articulate using the same mechanical mechanism. The device can be powered, or the device can be non-powered.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: December 5, 2023
    Assignee: Cilag GmbH International
    Inventors: Frederick E. Shelton, IV, Chester O. Baxter, III, Charles J. Scheib, Gregory W. Johnson, John R. Dugan
  • Publication number: 20230190271
    Abstract: A surgical instrument is disclosed. The surgical instrument can include a first jaw, a second jaw, and a jaw closure lockout system. The first jaw can comprise a pivot pin slot and a slide pin slot. The second jaw can comprise an anvil and, in addition, a mounting portion comprising a pivot pin, which can be movably positioned in the pivot pin slot. A shiftable guide can be movably positioned in the first jaw and can comprise a body and a barrier wall. The body can comprise a slide pin movably positioned in the slide pin slot. The barrier wall can be aligned with a portion of the pivot pin slot when the slide pin is positioned within a range of positions in the slide pin slot, and the barrier wall can be offset from the pivot pin slot when the slide pin is positioned outside the range of positions.
    Type: Application
    Filed: December 14, 2022
    Publication date: June 22, 2023
    Inventors: Michael S. Cropper, Michael E. Setser, Barry T. Jamison, Paul H. Kistler, John R. Dugan, Sudhir B. Patel
  • Patent number: 11547410
    Abstract: A surgical instrument is disclosed. The surgical instrument can include a first jaw, a second jaw, and a jaw closure lockout system. The first jaw can comprise a pivot pin slot and a slide pin slot. The second jaw can comprise an anvil and, in addition, a mounting portion comprising a pivot pin, which can be movably positioned in the pivot pin slot. A shiftable guide can be movably positioned in the first jaw and can comprise a body and a barrier wall. The body can comprise a slide pin movably positioned in the slide pin slot. The barrier wall can be aligned with a portion of the pivot pin slot when the slide pin is positioned within a range of positions in the slide pin slot, and the barrier wall can be offset from the pivot pin slot when the slide pin is positioned outside the range of positions.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: January 10, 2023
    Assignee: Cilag GmbH International
    Inventors: Michael S. Cropper, Michael E. Setser, Barry T. Jamison, Paul H. Kistler, John R. Dugan, Sudhir B. Patel
  • Publication number: 20220054129
    Abstract: Surgical instruments and end effectors therefor are disclosed. In various implementations, the surgical instrument includes a surgical end effector that comprises a lower jaw and an upper jaw that are supported for movable travel toward and away from each other. The instrument may further include a firing member that is operably supported for selective operable travel within the surgical end effector. The instrument may also include a first jaw closure system that operably interfaces with the lower jaw and is configured to selectively move the lower jaw relative to the upper jaw. A second jaw closure system operably interfaces with the upper jaw and is configured to selectively move the upper jaw relative to the lower jaw. A firing system operably interfaces with the firing member and is configured to apply firing motions to the firing member to move the firing member within the end effector.
    Type: Application
    Filed: August 30, 2021
    Publication date: February 24, 2022
    Inventors: Chester O. Baxter, III, Frederick E. Shelton, IV, John R. Dugan
  • Publication number: 20210330340
    Abstract: Methods and devices for using surgical devices with articulating end effectors are provided. Surgical devices with articulating end effectors can provide rotary driven pivoting of the end effector. In some embodiments, the device can include a handle, a first and a second tube extending from the handle, the second tube disposed within the first tube, and an end effector that includes a pair of distal jaws configured to move in response to rotation of the first tube about a longitudinal axis thereof and rotation of the second tube about a longitudinal axis thereof. The jaws can move in two different ways depending on whether the first and second tubes are rotating in a same direction as one another or in different ways than each other. The jaws can open/close and articulate using the same mechanical mechanism. The device can be powered, or the device can be non-powered.
    Type: Application
    Filed: July 7, 2021
    Publication date: October 28, 2021
    Inventors: Frederick E. Shelton, IV, Chester O. Baxter, III, Charles J. Scheib, Gregory W. Johnson, John R. Dugan
  • Patent number: 11123065
    Abstract: Surgical instruments and end effectors therefor are disclosed. In various implementations, the surgical instrument includes a surgical end effector that comprises a lower jaw and an upper jaw that are supported for movable travel toward and away from each other. The instrument may further include a firing member that is operably supported for selective operable travel within the surgical end effector. The instrument may also include a first jaw closure system that operably interfaces with the lower jaw and is configured to selectively move the lower jaw relative to the upper jaw. A second jaw closure system operably interfaces with the upper jaw and is configured to selectively move the upper jaw relative to the lower jaw. A firing system operably interfaces with the firing member and is configured to apply firing motions to the firing member to move the firing member within the end effector.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: September 21, 2021
    Assignee: Cilag GmbH International
    Inventors: Chester O. Baxter, III, Frederick E. Shelton, IV, John R. Dugan
  • Patent number: 11076877
    Abstract: Methods and devices for using surgical devices with articulating end effectors are provided. Surgical devices with articulating end effectors can provide rotary driven pivoting of the end effector. In some embodiments, the device can include a handle, a first and a second tube extending from the handle, the second tube disposed within the first tube, and an end effector that includes a pair of distal jaws configured to move in response to rotation of the first tube about a longitudinal axis thereof and rotation of the second tube about a longitudinal axis thereof. The jaws can move in two different ways depending on whether the first and second tubes are rotating in a same direction as one another or in different ways than each other. The jaws can open/close and articulate using the same mechanical mechanism. The device can be powered, or the device can be non-powered.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: August 3, 2021
    Assignee: Cilag GmbH International
    Inventors: Frederick E. Shelton, IV, Chester O. Baxter, III, Charles J. Scheib, Gregory W. Johnson, John R. Dugan
  • Publication number: 20210007743
    Abstract: A surgical instrument is disclosed. The surgical instrument can include a first jaw, a second jaw, and a jaw closure lockout system. The first jaw can comprise a pivot pin slot and a slide pin slot. The second jaw can comprise an anvil and, in addition, a mounting portion comprising a pivot pin, which can be movably positioned in the pivot pin slot. A shiftable guide can be movably positioned in the first jaw and can comprise a body and a barrier wall. The body can comprise a slide pin movably positioned in the slide pin slot. The barrier wall can be aligned with a portion of the pivot pin slot when the slide pin is positioned within a range of positions in the slide pin slot, and the barrier wall can be offset from the pivot pin slot when the slide pin is positioned outside the range of positions.
    Type: Application
    Filed: July 23, 2020
    Publication date: January 14, 2021
    Inventors: Michael S. Cropper, Michael E. Setser, Barry T. Jamison, Paul H. Kistler, John R. Dugan, Sudhir B. Patel
  • Patent number: 10729441
    Abstract: A surgical instrument is disclosed. The surgical instrument can include a first jaw, a second jaw, and a jaw closure lockout system. The first jaw can comprise a pivot pin slot and a slide pin slot. The second jaw can comprise an anvil and, in addition, a mounting portion comprising a pivot pin, which can be movably positioned in the pivot pin slot. A shiftable guide can be movably positioned in the first jaw and can comprise a body and a barrier wall. The body can comprise a slide pin movably positioned in the slide pin slot. The barrier wall can be aligned with a portion of the pivot pin slot when the slide pin is positioned within a range of positions in the slide pin slot, and the barrier wall can be offset from the pivot pin slot when the slide pin is positioned outside the range of positions.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: August 4, 2020
    Assignee: Ethicon LLC
    Inventors: Michael S. Cropper, Michael E. Setser, Barry T. Jamison, Paul H. Kistler, John R. Dugan, Sudhir B. Patel
  • Patent number: 10265065
    Abstract: A surgical staple and staple cartridge for removably storing the surgical staple. The surgical staple can comprise a plurality of separate and discrete staple drive surfaces. The staple drive surfaces can be configured to move along parallel paths in the staple cartridge. Additionally, the staple cartridge can comprise a staple cavity, and a plurality of lift planes can extend through the staple cavity.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: April 23, 2019
    Assignee: Ethicon LLC
    Inventors: Frederick E. Shelton, IV, Chester O. Baxter, III, Adam R. Dunki-Jacobs, Charles J. Scheib, William D. Fox, Michael J. Stokes, John R. Dugan
  • Publication number: 20190105069
    Abstract: Methods and devices for using surgical devices with articulating end effectors are provided. Surgical devices with articulating end effectors can provide rotary driven pivoting of the end effector. In some embodiments, the device can include a handle, a first and a second tube extending from the handle, the second tube disposed within the first tube, and an end effector that includes a pair of distal jaws configured to move in response to rotation of the first tube about a longitudinal axis thereof and rotation of the second tube about a longitudinal axis thereof. The jaws can move in two different ways depending on whether the first and second tubes are rotating in a same direction as one another or in different ways than each other. The jaws can open/close and articulate using the same mechanical mechanism. The device can be powered, or the device can be non-powered.
    Type: Application
    Filed: December 6, 2018
    Publication date: April 11, 2019
    Inventors: Frederick E. Shelton, IV, Chester O. Baxter, III, Charles J. Scheib, Gregory W. Johnson, John R. Dugan
  • Publication number: 20190038287
    Abstract: A surgical instrument is disclosed. The surgical instrument can include a first jaw, a second jaw, and a jaw closure lockout system. The first jaw can comprise a pivot pin slot and a slide pin slot. The second jaw can comprise an anvil and, in addition, a mounting portion comprising a pivot pin, which can be movably positioned in the pivot pin slot. A shiftable guide can be movably positioned in the first jaw and can comprise a body and a barrier wall. The body can comprise a slide pin movably positioned in the slide pin slot. The barrier wall can be aligned with a portion of the pivot pin slot when the slide pin is positioned within a range of positions in the slide pin slot, and the barrier wall can be offset from the pivot pin slot when the slide pin is positioned outside the range of positions.
    Type: Application
    Filed: August 8, 2018
    Publication date: February 7, 2019
    Inventors: Michael S. Cropper, Michael E. Setser, Barry T. Jamison, Paul H. Kistler, John R. Dugan, Sudhir B. Patel
  • Patent number: 10172635
    Abstract: Methods and devices for using surgical devices with articulating end effectors are provided. Surgical devices with articulating end effectors can provide rotary driven pivoting of the end effector. In some embodiments, the device can include a handle, a first and a second tube extending from the handle, the second tube disposed within the first tube, and an end effector that includes a pair of distal jaws configured to move in response to rotation of the first tube about a longitudinal axis thereof and rotation of the second tube about a longitudinal axis thereof. The jaws can move in two different ways depending on whether the first and second tubes are rotating in a same direction as one another or in different ways than each other. The jaws can open/close and articulate using the same mechanical mechanism. The device can be powered, or the device can be non-powered.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: January 8, 2019
    Assignee: Ethicon LLC
    Inventors: Frederick E. Shelton, IV, Chester O. Baxter, III, Charles J. Scheib, Gregory W. Johnson, John R. Dugan
  • Patent number: 10045781
    Abstract: A surgical instrument is disclosed. The surgical instrument can include a first jaw, a second jaw, and a jaw closure lockout system. The first jaw can comprise a pivot pin slot and a slide pin slot. The second jaw can comprise an anvil and, in addition, a mounting portion comprising a pivot pin, which can be movably positioned in the pivot pin slot. A shiftable guide can be movably positioned in the first jaw and can comprise a body and a barrier wall. The body can comprise a slide pin movably positioned in the slide pin slot. The barrier wall can be aligned with a portion of the pivot pin slot when the slide pin is positioned within a range of positions in the slide pin slot, and the barrier wall can be offset from the pivot pin slot when the slide pin is positioned outside the range of positions.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: August 14, 2018
    Assignee: Ethicon LLC
    Inventors: Michael S. Cropper, Michael E. Setser, Barry T. Jamison, Paul H. Kistler, John R. Dugan, Sudhir B. Patel
  • Publication number: 20180110517
    Abstract: Surgical instruments and end effectors therefor are disclosed. In various implementations, the surgical instrument includes a surgical end effector that comprises a lower jaw and an upper jaw that are supported for movable travel toward and away from each other. The instrument may further include a firing member that is operably supported for selective operable travel within the surgical end effector. The instrument may also include a first jaw closure system that operably interfaces with the lower jaw and is configured to selectively move the lower jaw relative to the upper jaw. A second jaw closure system operably interfaces with the upper jaw and is configured to selectively move the upper jaw relative to the lower jaw. A firing system operably interfaces with the firing member and is configured to apply firing motions to the firing member to move the firing member within the end effector.
    Type: Application
    Filed: October 27, 2017
    Publication date: April 26, 2018
    Inventors: Chester O. Baxter, III, Frederick E. Shelton, IV, John R. Dugan
  • Patent number: 9839428
    Abstract: Surgical instruments and end effectors therefor are disclosed. In various implementations, the surgical instrument includes a surgical end effector that comprises a lower jaw and an upper jaw that are supported for movable travel toward and away from each other. The instrument may further include a firing member that is operably supported for selective operable travel within the surgical end effector. The instrument may also include a first jaw closure system that operably interfaces with the lower jaw and is configured to selectively move the lower jaw relative to the upper jaw. A second jaw closure system operably interfaces with the upper jaw and is configured to selectively move the upper jaw relative to the lower jaw. A firing system operably interfaces with the firing member and is configured to apply firing motions to the firing member to move the firing member within the end effector.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: December 12, 2017
    Assignee: Ethicon LLC
    Inventors: Chester O. Baxter, III, Frederick E. Shelton, IV, John R. Dugan
  • Publication number: 20170172596
    Abstract: Methods and devices for using surgical devices with articulating end effectors are provided. Surgical devices with articulating end effectors can provide rotary driven pivoting of the end effector. In some embodiments, the device can include a handle, a first and a second tube extending from the handle, the second tube disposed within the first tube, and an end effector that includes a pair of distal jaws configured to move in response to rotation of the first tube about a longitudinal axis thereof and rotation of the second tube about a longitudinal axis thereof. The jaws can move in two different ways depending on whether the first and second tubes are rotating in a same direction as one another or in different ways than each other. The jaws can open/close and articulate using the same mechanical mechanism. The device can be powered, or the device can be non-powered.
    Type: Application
    Filed: December 27, 2016
    Publication date: June 22, 2017
    Inventors: Frederick E. Shelton, IV, Chester O. Baxter, III, Charles J. Scheib, Gregory W. Johnson, John R. Dugan
  • Patent number: 9642620
    Abstract: Surgical instruments and end effectors therefor are disclosed. In various implementations, the surgical instrument includes an elongated shaft assembly that defines a longitudinal tool axis. An elongated channel of an end effector is movably coupled to the elongated shaft assembly for selective pivotal travel about a pivot axis that is transverse to the longitudinal tool axis upon application of articulation motions thereto. The elongated channel may be configured to operably support a surgical staple cartridge. An anvil assembly is pivotally coupled to the elongated channel for selective pivotal travel relative thereto between open and closed positions about the pivot axis upon application of closing and opening motions thereto. In some implementations, the anvil assembly comprises a two part assembly.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: May 9, 2017
    Assignee: Ethicon Endo-Surgery, LLC
    Inventors: Chester O. Baxter, III, Frederick E. Shelton, IV, John R. Dugan
  • Patent number: 9549750
    Abstract: Methods and devices for using surgical devices with articulating end effectors are provided. Surgical devices with articulating end effectors can provide rotary driven pivoting of the end effector. In some embodiments, the device can include a handle, a first and a second tube extending from the handle, the second tube disposed within the first tube, and an end effector that includes a pair of distal jaws configured to move in response to rotation of the first tube about a longitudinal axis thereof and rotation of the second tube about a longitudinal axis thereof. The jaws can move in two different ways depending on whether the first and second tubes are rotating in a same direction as one another or in different ways than each other. The jaws can open/close and articulate using the same mechanical mechanism. The device can be powered, or the device can be non-powered.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: January 24, 2017
    Assignee: Ethicon Endo-Surgery, LLC
    Inventors: Frederick E. Shelton, IV, Chester O. Baxter, III, Charles J. Scheib, Gregory W. Johnson, John R. Dugan