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).
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Patent number: 11896223Abstract: 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: GrantFiled: August 30, 2021Date of Patent: February 13, 2024Assignee: Cilag GmbH InternationalInventors: Chester O. Baxter, III, Frederick E. Shelton, IV, John R. Dugan
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Patent number: 11832841Abstract: 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: GrantFiled: July 7, 2021Date of Patent: December 5, 2023Assignee: Cilag GmbH InternationalInventors: Frederick E. Shelton, IV, Chester O. Baxter, III, Charles J. Scheib, Gregory W. Johnson, John R. Dugan
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Publication number: 20230190271Abstract: 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: ApplicationFiled: December 14, 2022Publication date: June 22, 2023Inventors: Michael S. Cropper, Michael E. Setser, Barry T. Jamison, Paul H. Kistler, John R. Dugan, Sudhir B. Patel
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Patent number: 11547410Abstract: 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: GrantFiled: July 23, 2020Date of Patent: January 10, 2023Assignee: Cilag GmbH InternationalInventors: Michael S. Cropper, Michael E. Setser, Barry T. Jamison, Paul H. Kistler, John R. Dugan, Sudhir B. Patel
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Publication number: 20220054129Abstract: 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: ApplicationFiled: August 30, 2021Publication date: February 24, 2022Inventors: Chester O. Baxter, III, Frederick E. Shelton, IV, John R. Dugan
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Publication number: 20210330340Abstract: 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: ApplicationFiled: July 7, 2021Publication date: October 28, 2021Inventors: Frederick E. Shelton, IV, Chester O. Baxter, III, Charles J. Scheib, Gregory W. Johnson, John R. Dugan
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Patent number: 11123065Abstract: 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: GrantFiled: October 27, 2017Date of Patent: September 21, 2021Assignee: Cilag GmbH InternationalInventors: Chester O. Baxter, III, Frederick E. Shelton, IV, John R. Dugan
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Patent number: 11076877Abstract: 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: GrantFiled: December 6, 2018Date of Patent: August 3, 2021Assignee: Cilag GmbH InternationalInventors: Frederick E. Shelton, IV, Chester O. Baxter, III, Charles J. Scheib, Gregory W. Johnson, John R. Dugan
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Publication number: 20210007743Abstract: 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: ApplicationFiled: July 23, 2020Publication date: January 14, 2021Inventors: Michael S. Cropper, Michael E. Setser, Barry T. Jamison, Paul H. Kistler, John R. Dugan, Sudhir B. Patel
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Patent number: 10729441Abstract: 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: GrantFiled: August 8, 2018Date of Patent: August 4, 2020Assignee: Ethicon LLCInventors: Michael S. Cropper, Michael E. Setser, Barry T. Jamison, Paul H. Kistler, John R. Dugan, Sudhir B. Patel
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Patent number: 10265065Abstract: 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: GrantFiled: December 23, 2013Date of Patent: April 23, 2019Assignee: Ethicon LLCInventors: Frederick E. Shelton, IV, Chester O. Baxter, III, Adam R. Dunki-Jacobs, Charles J. Scheib, William D. Fox, Michael J. Stokes, John R. Dugan
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Publication number: 20190105069Abstract: 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: ApplicationFiled: December 6, 2018Publication date: April 11, 2019Inventors: Frederick E. Shelton, IV, Chester O. Baxter, III, Charles J. Scheib, Gregory W. Johnson, John R. Dugan
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Publication number: 20190038287Abstract: 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: ApplicationFiled: August 8, 2018Publication date: February 7, 2019Inventors: Michael S. Cropper, Michael E. Setser, Barry T. Jamison, Paul H. Kistler, John R. Dugan, Sudhir B. Patel
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Patent number: 10172635Abstract: 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: GrantFiled: December 27, 2016Date of Patent: January 8, 2019Assignee: Ethicon LLCInventors: Frederick E. Shelton, IV, Chester O. Baxter, III, Charles J. Scheib, Gregory W. Johnson, John R. Dugan
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Patent number: 10045781Abstract: 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: GrantFiled: June 13, 2014Date of Patent: August 14, 2018Assignee: Ethicon LLCInventors: Michael S. Cropper, Michael E. Setser, Barry T. Jamison, Paul H. Kistler, John R. Dugan, Sudhir B. Patel
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Publication number: 20180110517Abstract: 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: ApplicationFiled: October 27, 2017Publication date: April 26, 2018Inventors: Chester O. Baxter, III, Frederick E. Shelton, IV, John R. Dugan
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Patent number: 9839428Abstract: 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: GrantFiled: December 23, 2013Date of Patent: December 12, 2017Assignee: Ethicon LLCInventors: Chester O. Baxter, III, Frederick E. Shelton, IV, John R. Dugan
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Publication number: 20170172596Abstract: 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: ApplicationFiled: December 27, 2016Publication date: June 22, 2017Inventors: Frederick E. Shelton, IV, Chester O. Baxter, III, Charles J. Scheib, Gregory W. Johnson, John R. Dugan
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Patent number: 9642620Abstract: 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: GrantFiled: December 23, 2013Date of Patent: May 9, 2017Assignee: Ethicon Endo-Surgery, LLCInventors: Chester O. Baxter, III, Frederick E. Shelton, IV, John R. Dugan
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Patent number: 9549750Abstract: 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: GrantFiled: March 31, 2014Date of Patent: January 24, 2017Assignee: Ethicon Endo-Surgery, LLCInventors: Frederick E. Shelton, IV, Chester O. Baxter, III, Charles J. Scheib, Gregory W. Johnson, John R. Dugan