Patents by Inventor Barry T Jamison

Barry T Jamison 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: 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
  • Publication number: 20200205808
    Abstract: A surgical instrument and method of manipulating tissue of a patient includes a body having a firing mechanism configured to be selectively manipulated by an operator, a shaft assembly extending distally from the body, and an end effector extending distally from the shaft assembly and configured to receive a cartridge for manipulating tissue of a patient. The end effector includes a distal end portion, a proximal end portion, a gap between the distal and proximal end portions, and a guide pin. The guide pin extends from the distal end portion to the proximal end portion and is connected thereto. Thereby, the guide pin is configured to secure the distal end portion relative to the proximal end portion and inhibit deflection of the distal end portion relative to the proximal end portion.
    Type: Application
    Filed: January 21, 2020
    Publication date: July 2, 2020
    Inventors: Thomas Adams, Anil K. Nalagatla, Barry T. Jamison
  • Patent number: 10631867
    Abstract: A surgical instrument includes an anvil selectively coupleable to a stapling head assembly and a trigger operable to fire staples into tissue compressed between the anvil and the stapling head assembly. In some versions, a lockout member may engage a securing feature to prevent actuation of the anvil relative to the stapling head assembly. For instance, a tab may engage a slot on an actuator, a screen door lock may provide frictional resistance or engage teeth on the actuator, a door may actuate into engagement with one or more recesses, geared teeth may mesh with teeth on the actuator, the lockout member may include a ratcheting assembly to engage actuator, and/or a push button may actuate into a recess while disengaging the lockout member. Alternatively, in some versions, the trigger actuation assembly may be disengaged prior to firing. An anvil position indicator may restrict engagement of the trigger actuation assembly.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: April 28, 2020
    Assignee: Ethicon LLC
    Inventors: Christopher C. Miller, Edward G. Chekan, Johnny H. Alexander, III, John F. Cummings, Carl J. Shurtleff, Adam R. Dunki-Jacobs, Barry T. Jamison, Joseph E. Young, Cortney E. Henderson
  • Patent number: 10610219
    Abstract: A surgical instrument and method of manipulating colon tissue of a patient includes a body having a firing mechanism, a shaft assembly, and an end effector operatively connected to the firing mechanism via the shaft assembly. The end effector is configured to receive a cartridge selectively actuated by the selective manipulation of the firing mechanism. A distal end portion of the end effector includes a first end, a second end laterally opposite the first end, and a distal crest laterally positioned between the first and second ends that projects distally beyond the first and second ends. The distal end portion also includes an arcuate distal surface extending along the distal with a radius of curvature configured to be received against the pelvic bowl of the patient to position the end effector relative to colon tissue for manipulating the colon tissue with the cartridge.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: April 7, 2020
    Assignee: Ethicon LLC
    Inventors: Thomas Adams, Anil K. Nalagatla, Barry T. Jamison
  • Patent number: 10575848
    Abstract: A surgical instrument and method of manipulating tissue of a patient includes a body having a firing mechanism configured to be selectively manipulated by an operator, a shaft assembly extending distally from the body, and an end effector extending distally from the shaft assembly and configured to receive a cartridge for manipulating tissue of a patient. The end effector includes a distal end portion, a proximal end portion, a gap between the distal and proximal end portions, and a guide pin. The guide pin extends from the distal end portion to the proximal end portion and is connected thereto. Thereby, the guide pin is configured to secure the distal end portion relative to the proximal end portion and inhibit deflection of the distal end portion relative to the proximal end portion.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: March 3, 2020
    Assignee: Ethicon LLC
    Inventors: Thomas Adams, Anil K. Nalagatla, Barry T. Jamison
  • Patent number: 10561474
    Abstract: A surgical instrument and method for indicating that a cartridge has been fired includes an end effector receiving a cartridge having at least one of a knife and a plurality of staples, a shaft assembly connected to the end effector, and a handle assembly. The handle assembly has a handle housing, a firing member configured to selectively actuate from a first position to a second position as a firing stroke, and a feedback generator operatively connected to the firing member. The firing member is configured to actuate the cartridge from an unfired cartridge position to a fired cartridge position when the firing member is actuated. The feedback generator is configured to communicate an audible sound and a visual indicia to an operator indicative of the firing member completing the firing stroke for actuating the cartridge to the fired cartridge position.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: February 18, 2020
    Assignee: Ethicon LLC
    Inventors: Thomas Adams, Barry T. Jamison, Steven Dickinson, Anil K. Nalagatla
  • Publication number: 20190261985
    Abstract: A surgical instrument and method for forming a plurality of staples in tissue of a patient includes a body having a firing mechanism, a shaft assembly, an end effector with an anvil, and a cartridge received within the end effector that is operatively connected to the firing mechanism. The cartridge includes a cartridge housing having a plurality of staple slots, a plurality of staples respectively positioned within the plurality of staple slots, and a driver assembly. The driver assembly has a plurality of drivers respectively supporting the plurality of staples within the plurality of staple slots. The firing mechanism is configured to selectively move the plurality of drivers distally toward the anvil for forming the plurality of staples therebetween. At least one driver of the plurality of drivers has a variable distal height relative to at least another driver of the plurality of drivers in a predetermined variable height pattern.
    Type: Application
    Filed: March 5, 2019
    Publication date: August 29, 2019
    Inventors: Thomas E. Adams, Anil K. Nalagatla, Disha V. Labhasetwar, Barry T. Jamison, Mary R. Towers
  • Patent number: 10258334
    Abstract: A surgical instrument and method for forming a plurality of staples in tissue of a patient includes a body having a firing mechanism, a shaft assembly, an end effector with an anvil, and a cartridge received within the end effector that is operatively connected to the firing mechanism. The cartridge includes a cartridge housing having a plurality of staple slots, a plurality of staples respectively positioned within the plurality of staple slots, and a driver assembly. The driver assembly has a plurality of drivers respectively supporting the plurality of staples within the plurality of staple slots. The firing mechanism is configured to selectively move the plurality of drivers distally toward the anvil for forming the plurality of staples therebetween. At least one driver of the plurality of drivers has a variable distal height relative to at least another driver of the plurality of drivers in a predetermined variable height pattern.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: April 16, 2019
    Assignee: Ethicon LLC
    Inventors: Thomas Adams, Anil K. Nalagatla, Disha V. Labhasetwar, Barry T. Jamison, Mary R. Towers
  • Patent number: 10226246
    Abstract: A surgical instrument includes a handle assembly having a trigger operable to fire a staple driver to staple tissue. The instrument includes a pointed rod to which an anvil may be coupled. An anvil detection feature is included to determine when the anvil is coupled to the rod. In some versions, the anvil detection feature comprises a translatable rod that inhibits a lockout feature from disengaging. In other versions, an anvil sensing tube is disposed about the pointed rod and interferes with actuation of the trigger in a first position. A recess in the tube permits trigger to actuate when the anvil sensing tube is in the second position. Alternatively, a resilient tab is coupled to the pointed rod and resists actuation of the staple driver. A trigger lockout assembly may include a spring-loaded button that “pops” out when a push rod is actuated, thereby freeing a pivotable lockout feature.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: March 12, 2019
    Assignee: Ethicon LLC
    Inventors: Kevin D. Felder, John F. Cummings, Joseph P. Schowalter, Patrick J. Swindon, Johnny H. Alexander, III, Patrick A. Weizman, Cory G. Kimball, Edward G. Chekan, Joseph E. Young, Christopher C. Miller, Barry T. Jamison, John V. Hunt, Kent P. Baker, Cortney E. Henderson, Chester O. Baxter, III, Jerome R. Morgan, Adam R. Dunki-Jacobs, Venkataramanan Mandakolathur Vasudevan, Carl J. Shurtleff, Julia F. Serber
  • 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
  • Publication number: 20190000455
    Abstract: A method for manipulating tissue of a patient includes a surgical instrument having a handle assembly, a shaft assembly, and an end effector. The method includes positioning a tissue within a gap between a cartridge and an anvil and against a guide pin to laterally position the tissue relative to the cartridge and the anvil. The method also includes moving a retaining pin from an open position to a closed position to capture the tissue and moving the cartridge toward the anvil in a closed configuration. Furthermore, the method includes inhibiting deflection of a distal end portion of the end effector wherein at least at least one of the guide pin or the retaining pin connects to the distal end portion. The method further includes forming a plurality of staples within the tissue and cutting the tissue with a knife.
    Type: Application
    Filed: July 9, 2018
    Publication date: January 3, 2019
    Inventors: Thomas Adams, Hector Chow, Steven Dickinson, Douglas B. Hoffman, Barry T. Jamison, John S. Kimsey, Disha V. Labhasetwar, Anil K. Nalagatla, Sudhir Patel, Mary R. Towers
  • 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
  • Patent number: 10045780
    Abstract: A method for manipulating tissue of a patient includes a surgical instrument having a handle assembly, a shaft assembly, and an end effector. The method includes positioning a tissue within a gap between a cartridge and an anvil and against a guide pin to laterally position the tissue relative to the cartridge and the anvil. The method also includes moving a retaining pin from an open position to a closed position to capture the tissue and moving the cartridge toward the anvil in a closed configuration. Furthermore, the method includes inhibiting deflection of a distal end portion of the end effector wherein at least at least one of the guide pin or the retaining pin connects to the distal end portion. The method further includes forming a plurality of staples within the tissue and cutting the tissue with a knife.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: August 14, 2018
    Assignee: Ethicon LLC
    Inventors: Thomas Adams, Hector Chow, Steven Dickinson, Douglas B. Hoffman, Barry T. Jamison, John S. Kimsey, Disha V. Labhasetwar, Anil K. Nalagatla, Sudhir Patel, Mary R. Towers
  • Publication number: 20170215883
    Abstract: A surgical instrument includes an anvil selectively coupleable to a stapling head assembly and a trigger operable to fire staples into tissue compressed between the anvil and the stapling head assembly. In some versions, a lockout member may engage a securing feature to prevent actuation of the anvil relative to the stapling head assembly. For instance, a tab may engage a slot on an actuator, a screen door lock may provide frictional resistance or engage teeth on the actuator, a door may actuate into engagement with one or more recesses, geared teeth may mesh with teeth on the actuator, the lockout member may include a ratcheting assembly to engage actuator, and/or a push button may actuate into a recess while disengaging the lockout member. Alternatively, in some versions, the trigger actuation assembly may be disengaged prior to firing. An anvil position indicator may restrict engagement of the trigger actuation assembly.
    Type: Application
    Filed: February 15, 2017
    Publication date: August 3, 2017
    Inventors: Christopher C. Miller, Edward G. Chekan, Johnny H. Alexander, III, John F. Cummings, Carl J. Shurtleff, Adam R. Dunki-Jacobs, Barry T. Jamison, Joseph E. Young, Cortney E. Henderson
  • Publication number: 20170189012
    Abstract: A surgical instrument and method of manipulating colon tissue of a patient includes a body having a firing mechanism, a shaft assembly, and an end effector operatively connected to the firing mechanism via the shaft assembly. The end effector is configured to receive a cartridge selectively actuated by the selective manipulation of the firing mechanism. A distal end portion of the end effector includes a first end, a second end laterally opposite the first end, and a distal crest laterally positioned between the first and second ends that projects distally beyond the first and second ends. The distal end portion also includes an arcuate distal surface extending along the distal with a radius of curvature configured to be received against the pelvic bowl of the patient to position the end effector relative to colon tissue for manipulating the colon tissue with the cartridge.
    Type: Application
    Filed: December 31, 2015
    Publication date: July 6, 2017
    Inventors: Thomas Adams, Anil K. Nalagatla, Barry T. Jamison
  • Publication number: 20170189022
    Abstract: A method for manipulating tissue of a patient includes a surgical instrument having a handle assembly, a shaft assembly, and an end effector. The method includes positioning a tissue within a gap between a cartridge and an anvil and against a guide pin to laterally position the tissue relative to the cartridge and the anvil. The method also includes moving a retaining pin from an open position to a closed position to capture the tissue and moving the cartridge toward the anvil in a closed configuration. Furthermore, the method includes inhibiting deflection of a distal end portion of the end effector wherein at least at least one of the guide pin or the retaining pin connects to the distal end portion. The method further includes forming a plurality of staples within the tissue and cutting the tissue with a knife.
    Type: Application
    Filed: December 31, 2015
    Publication date: July 6, 2017
    Inventors: Thomas Adams, Hector Chow, Steven Dickinson, Douglas B. Hoffman, Barry T. Jamison, John S. Kimsey, Disha V. Labhasetwar, Anil K. Nalagatla, Sudhir Patel, Mary R. Towers
  • Publication number: 20170189132
    Abstract: A surgical instrument and method for indicating that a cartridge has been fired includes an end effector receiving a cartridge having at least one of a knife and a plurality of staples, a shaft assembly connected to the end effector, and a handle assembly. The handle assembly has a handle housing, a firing member configured to selectively actuate from a first position to a second position as a firing stroke, and a feedback generator operatively connected to the firing member. The firing member is configured to actuate the cartridge from an unfired cartridge position to a fired cartridge position when the firing member is actuated. The feedback generator is configured to communicate an audible sound and a visual indicia to an operator indicative of the firing member completing the firing stroke for actuating the cartridge to the fired cartridge position.
    Type: Application
    Filed: December 31, 2015
    Publication date: July 6, 2017
    Inventors: Thomas Adams, Barry T. Jamison, Steven Dickinson, Anil K. Nalagatla
  • Publication number: 20170189015
    Abstract: A surgical instrument and method of manipulating tissue of a patient includes a body having a firing mechanism configured to be selectively manipulated by an operator, a shaft assembly extending distally from the body, and an end effector extending distally from the shaft assembly and configured to receive a cartridge for manipulating tissue of a patient. The end effector includes a distal end portion, a proximal end portion, a gap between the distal and proximal end portions, and a guide pin. The guide pin extends from the distal end portion to the proximal end portion and is connected thereto. Thereby, the guide pin is configured to secure the distal end portion relative to the proximal end portion and inhibit deflection of the distal end portion relative to the proximal end portion.
    Type: Application
    Filed: December 31, 2015
    Publication date: July 6, 2017
    Inventors: Thomas Adams, Anil K. Nalagatla, Barry T. Jamison
  • Publication number: 20170189024
    Abstract: A surgical instrument and method for forming a plurality of staples in tissue of a patient includes a body having a firing mechanism, a shaft assembly, an end effector with an anvil, and a cartridge received within the end effector that is operatively connected to the firing mechanism. The cartridge includes a cartridge housing having a plurality of staple slots, a plurality of staples respectively positioned within the plurality of staple slots, and a driver assembly. The driver assembly has a plurality of drivers respectively supporting the plurality of staples within the plurality of staple slots. The firing mechanism is configured to selectively move the plurality of drivers distally toward the anvil for forming the plurality of staples therebetween. At least one driver of the plurality of drivers has a variable distal height relative to at least another driver of the plurality of drivers in a predetermined variable height pattern.
    Type: Application
    Filed: December 31, 2015
    Publication date: July 6, 2017
    Inventors: Thomas Adams, Anil K. Nalagatla, Disha V. Labhasetwar, Barry T. Jamison, Mary R. Towers
  • Patent number: 9603599
    Abstract: A surgical instrument includes an anvil selectively coupleable to a stapling head assembly and a trigger operable to fire staples into tissue compressed between the anvil and the stapling head assembly. In some versions, a lockout member may engage a securing feature to prevent actuation of the anvil relative to the stapling head assembly. For instance, a tab may engage a slot on an actuator, a screen door lock may provide frictional resistance or engage teeth on the actuator, a door may actuate into engagement with one or more recesses, geared teeth may mesh with teeth on the actuator, the lockout member may include a ratcheting assembly to engage actuator, and/or a push button may actuate into a recess while disengaging the lockout member. Alternatively, in some versions, the trigger actuation assembly may be disengaged prior to firing. An anvil position indicator may restrict engagement of the trigger actuation assembly.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: March 28, 2017
    Assignee: Ethicon Endo-Surgery, LLC
    Inventors: Christopher C. Miller, Edward G. Chekan, Johnny H. Alexander, III, John F. Cummings, Carl J. Shurtleff, Adam R. Dunki-Jacobs, Barry T. Jamison, Joseph E. Young, Cortney E. Henderson