Patents by Inventor Johnny H. Alexander, III

Johnny H. Alexander, III 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: 10709452
    Abstract: An apparatus includes a body, a shaft, a stapling head assembly, and an anvil. The body includes a motor, a first user input feature, and a second user input feature. The first user input feature is operable to activate the motor. The shaft extends distally from the body. The stapling head assembly is positioned at a distal end of the shaft. The stapling head assembly includes an anvil coupling feature, at least one annular array of staples, and a staple driver. The second user input feature is operable to drive the anvil coupling feature longitudinally. The staple driver is operable to drive the at least one annular array of staples. The motor is operable to drive the staple driver. The anvil is configured to couple with the anvil coupling feature. The anvil is further configured to deform the staples driven by the staple driver.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: July 14, 2020
    Assignee: Ethicon LLC
    Inventors: Brian F. DiNardo, Brian W. Bear, Charles J. Scheib, Christopher C. Miller, Craig S. Smith, Emily A. Schellin, Frederick E. Shelton, IV, Jason E. Zerkle, Jeffrey C. Gagel, John P. Measamer, Johnny H. Alexander, III, Joseph T. Kluener, Kevin D. Sackett, Kevin L. Houser, Mark D. Overmyer, Matthew H. Bolton, Omar J. Vakharia, Richard F. Schwemberger, Richard L. Leimbach, Rodney V. Clingaman, Timothy E. Goode, William D. Fox, William R. Stager
  • 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: 10363031
    Abstract: Tissue thickness compensators for use with circular surgical staplers. Various tissue thickness compensators are disclosed for deployment between a stapler head of a surgical circular stapler and an anvil attached thereto to accommodate variances in tissue thickness during stapling. Some tissue thickness compensator arrangements include means and configurations for deploying healing agents for enhancing the healing process.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: July 30, 2019
    Assignee: Ethicon LLC
    Inventors: Johnny H. Alexander, III, Cortney E. Henderson, Christopher C. Miller, John P. Measamer, Katherine J. Schmid, Frederick E. Shelton, IV, Stephanie A. Mutchler, Bret W. Smith, Michael S. Cropper
  • 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: 20190053796
    Abstract: A surgical circular stapler has a body, shaft, a stapling assembly, a motor, a cam assembly, and a firing assembly. The shaft extends distally from the body. The stapling assembly is secured to a distal end of the shaft. Longitudinal translation of the firing assembly causes the stapling assembly to drive a plurality of staples in a circular array to secure two lumens of tissue together. The stapling assembly may further drive a blade to sever any excess tissue interior of the circular array of staples. The motor is operable to rotate the cam assembly. Rotation of the cam assembly causes longitudinal translation of the firing assembly. A single rotation of the cam assembly is operable to drive the firing assembly from a proximal position to a distal position and back to a proximal position.
    Type: Application
    Filed: August 22, 2018
    Publication date: February 21, 2019
    Inventors: Christopher C. Miller, John P. Measamer, Brian F. DiNardo, Richard F. Schwemberger, Johnny H. Alexander, III
  • Patent number: 9936949
    Abstract: An apparatus includes an end effector, a shaft assembly including a translating drive member, and a drive assembly. The end effector includes a distally advancing cutting member and staple driver. The translating drive member is operable to actuate the end effector. The drive assembly is in communication with the translating drive member and includes a motor, a rotary drive member, a first link, and at least one toggle link. The rotary drive member is in communication with the motor. The first link is in communication with the rotary drive member. The at least one toggle link is in communication with the first link and the translating drive member. The rotary drive member is operable to convey linear motion to the first link. The first link is able to convey linear motion to the translating drive member.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: April 10, 2018
    Assignee: Ethicon LLC
    Inventors: John P. Measamer, Christopher C. Miller, Brian F. DiNardo, Richard F. Schwemberger, Johnny H. Alexander, III
  • Publication number: 20170354409
    Abstract: A surgical circular stapler has a handle assembly, a shaft, a stapling assembly, a motor, a drive assembly, and a firing assembly. The shaft extends distally from the handle assembly. The stapling assembly is secured to a distal end of the shaft. Longitudinal translation of the firing assembly causes the stapling assembly to drive a plurality of staples in a circular array to secure two lumens of tissue together. The stapling assembly may further drive a blade to sever any excess tissue interior of the circular array of staples. The motor is operable to rotate the drive assembly to thereby translate the firing assembly. A resilient member biases the firing assembly proximally. Through cooperation between the firing assembly and the resilient member, the firing assembly is driven distally and proximally to complete a firing stroke in response to rotation of the drive assembly through a single revolution.
    Type: Application
    Filed: June 26, 2017
    Publication date: December 14, 2017
    Inventors: Richard L. Leimbach, Richard F. Schwemberger, John P. Measamer, Johnny H. Alexander, III, Christopher C. Miller, Brian F. DiNardo, Jason M. Rector
  • Publication number: 20170258471
    Abstract: An apparatus includes a body, a shaft, a stapling head assembly, and an anvil. The body includes a motor, a first user input feature, and a second user input feature. The first user input feature is operable to activate the motor. The shaft extends distally from the body. The stapling head assembly is positioned at a distal end of the shaft. The stapling head assembly includes an anvil coupling feature, at least one annular array of staples, and a staple driver. The second user input feature is operable to drive the anvil coupling feature longitudinally. The staple driver is operable to drive the at least one annular array of staples. The motor is operable to drive the staple driver. The anvil is configured to couple with the anvil coupling feature. The anvil is further configured to deform the staples driven by the staple driver.
    Type: Application
    Filed: May 25, 2017
    Publication date: September 14, 2017
    Inventors: Brian F. DiNardo, Brian W. Bear, Charles J. Scheib, Christopher C. Miller, Craig S. Smith, Emily A. Schellin, Frederick E. Shelton, IV, Jason E. Zerkle, Jeffrey C. Gagel, John P. Measamer, Johnny H. Alexander, III, Joseph T. Kluener, Kevin D. Sackett, Kevin L. Houser, Mark D. Overmyer, Matthew H. Bolton, Omar J. Vakharia, Richard F. Schwemberger, Richard L. Leimbach, Rodney V. Clingaman, Timothy E. Goode, William D. Fox, William R. Stager
  • 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
  • Patent number: 9717496
    Abstract: A surgical stapling instrument for performing a circular anastomosis comprises a stapling head assembly, an actuator handle assembly, a shaft assembly, a safety latch, and a locking member. The stapling head assembly includes an anvil that moves relative to a staple holder and a staple driver to drive staples from the staple holder into tissue and against the anvil. The actuator handle assembly has a first actuator that controls motion of the anvil and a second actuator that controls motion of the staple driver. The shaft assembly couples the stapling head assembly to the actuator handle assembly. The safety latch prevents operation of the second actuator when the gap between the anvil and staple holder is outside a predetermined range. The locking member is configured to prevent adjustment of the anvil gap after the desired staple height has been set inside the predetermined range.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: August 1, 2017
    Assignee: Ethicon LLC
    Inventors: Venkataramanan Mandakolathur Vasudevan, Edward G. Chekan, Kevin D. Felder, Jerome R. Morgan, Carl J. Shurtleff, IV, Johnny H. Alexander, III, John F. Cummings, Christopher C. Miller
  • Patent number: 9713469
    Abstract: A surgical circular stapler has a handle assembly, a shaft, a stapling assembly, a motor, a drive assembly, and a firing assembly. The shaft extends distally from the handle assembly. The stapling assembly is secured to a distal end of the shaft. Longitudinal translation of the firing assembly causes the stapling assembly to drive a plurality of staples in a circular array to secure two lumens of tissue together. The stapling assembly may further drive a blade to sever any excess tissue interior of the circular array of staples. The motor is operable to rotate the drive assembly to thereby translate the firing assembly. A resilient member biases the firing assembly proximally. Through cooperation between the firing assembly and the resilient member, the firing assembly is driven distally and proximally to complete a firing stroke in response to rotation of the drive assembly through a single revolution.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: July 25, 2017
    Assignee: Ethicon LLC
    Inventors: Richard L. Leimbach, Richard F. Schwemberger, John P. Measamer, Johnny H. Alexander, III, Christopher C. Miller, Brian F. DiNardo, Jason M. Rector
  • 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
  • Patent number: 9549738
    Abstract: A surgical instrument includes a body, a pivotable trigger, and a ratcheting assembly. The ratcheting assembly may include a rotary ratchet coupled to the trigger and a pawl coupled to the body. The rotary ratchet may further include a ramp that disengages the ratchet from the pawl. A release feature may be included to selectively disengage a second member of the ratcheting assembly from a first member. In some versions, the release feature may include a rotation knob or a slidable handle. In another configuration, the ratcheting assembly may have a first member coupled to an actuator and a second member coupled to the body. The assembly may include a lock member coupled to the body that selectively engages a plurality of teeth disposed on the actuator. Alternatively, the assembly may include a pivotable pawl coupled to the actuator that engages one or more notches formed in the body.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: January 24, 2017
    Assignee: Ethicon Endo-Surgery, LLC
    Inventors: Venkataramanan Mandakolathur Vasudevan, Adam R. Dunki-Jacobs, Chester O. Baxter, III, Jerome R. Morgan, Cortney E. Henderson, Christopher C. Miller, Kent P. Baker, John V. Hunt, Barry T. Jamison, Patrick A. Weizman, Joseph E. Young, Cory G. Kimball, Carl J. Shurtleff, Edward G. Chekan, Kevin D. Felder, Johnny H. Alexander, III, Patrick J. Swindon, Joseph P. Schowalter, John F. Cummings
  • Publication number: 20160287249
    Abstract: Tissue thickness compensators for use with circular surgical staplers. Various tissue thickness compensators are disclosed for deployment between a stapler head of a surgical circular stapler and an anvil attached thereto to accommodate variances in tissue thickness during stapling. Some tissue thickness compensator arrangements include means and configurations for deploying healing agents for enhancing the healing process.
    Type: Application
    Filed: June 13, 2016
    Publication date: October 6, 2016
    Inventors: Johnny H. Alexander, III, Cortney E. Henderson, Christopher C. Miller, John P. Measamer, Katherine J. Schmid, Frederick E. Shelton, IV, Stephanie A. Mutchler, Bret W. Smith, Michael S. Cropper
  • Patent number: 9364233
    Abstract: Tissue thickness compensators for use with circular surgical staplers. Various tissue thickness compensators are disclosed for deployment between a stapler head of a surgical circular stapler and an anvil attached thereto to accommodate variances in tissue thickness during stapling. Some tissue thickness compensator arrangements include means and configurations for deploying healing agents for enhancing the healing process.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: June 14, 2016
    Assignee: Ethicon Endo-Surgery, LLC
    Inventors: Johnny H. Alexander, III, Cortney E. Henderson, Christopher C. Miller, John P. Measamer, Katherine J. Schmid, Frederick E. Shelton, IV, Stephanie A. Mutchler, Bret W. Smith, Michael S. Cropper
  • Publication number: 20160066906
    Abstract: A surgical stapling instrument for performing a circular anastomosis comprises a stapling head assembly, an actuator handle assembly, a shaft assembly, a safety latch, and a locking member. The stapling head assembly includes an anvil that moves relative to a staple holder and a staple driver to drive staples from the staple holder into tissue and against the anvil. The actuator handle assembly has a first actuator that controls motion of the anvil and a second actuator that controls motion of the staple driver. The shaft assembly couples the stapling head assembly to the actuator handle assembly. The safety latch prevents operation of the second actuator when the gap between the anvil and staple holder is outside a predetermined range. The locking member is configured to prevent adjustment of the anvil gap after the desired staple height has been set inside the predetermined range.
    Type: Application
    Filed: November 18, 2015
    Publication date: March 10, 2016
    Inventors: Venkataramanan Mandakolathur Vasudevan, Edward G. Chekan, Kevin D. Felder, Jerome R. Morgan, Carl J. Shurtleff, IV, Johnny H. Alexander, III, John F. Cummings, Christopher C. Miller
  • Patent number: 9220505
    Abstract: A surgical stapling instrument for performing a circular anastomosis comprises a stapling head assembly, an actuator handle assembly, a shaft assembly, a safety latch, and a locking member. The stapling head assembly includes an anvil that moves relative to a staple holder and a staple driver to drive staples from the staple holder into tissue and against the anvil. The actuator handle assembly has a first actuator that controls motion of the anvil and a second actuator that controls motion of the staple driver. The shaft assembly couples the stapling head assembly to the actuator handle assembly. The safety latch prevents operation of the second actuator when the gap between the anvil and staple holder is outside a predetermined range. The locking member is configured to prevent adjustment of the anvil gap after the desired staple height has been set inside the predetermined range.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: December 29, 2015
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Venkataramanan Mandakolathur Vasudevan, Edward G. Chekan, Kevin D. Felder, Jerome R. Morgan, Carl J. Shurtleff, Johnny H. Alexander, III, John F. Cummings, Christopher C. Miller
  • Patent number: 9186148
    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: January 5, 2012
    Date of Patent: November 17, 2015
    Assignee: Ethicon Endo-Surgery, Inc.
    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
  • Patent number: 9095340
    Abstract: A surgical stapler comprises an anvil assembly, an anvil shaft, a driver, an actuating arm, a safety switch, and a safety feature. The anvil assembly couples with the anvil shaft. The driver drives a plurality of staples into tissue. The actuating arm is in communication with the surgical stapler and is configured to actuate the driver to drive the plurality of staples into tissue. The safety switch is moveable between a locked and an unlocked position. The safety switch prevents operation of the actuating arm when the safety switch is in the locked position. The safety switch enables operation of the actuating arm when the safety switch is in the unlocked position. The safety feature may prevent operation of the driver even when the safety switch is in the unlocked position or prevent operation of the safety switch.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: August 4, 2015
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Kevin D. Felder, John F. Cummings, Joseph P. Schowalter, Patrick J. Swindon, Johnny H. Alexander, III, Christopher C. Miller, Barry T. Jamison, John V. Hunt, Kent P. Baker, Julia F. Serber
  • Publication number: 20150083775
    Abstract: A surgical circular stapler has a handle assembly, a shaft, a stapling assembly, a motor, a drive assembly, and a firing assembly. The shaft extends distally from the handle assembly. The stapling assembly is secured to a distal end of the shaft. Longitudinal translation of the firing assembly causes the stapling assembly to drive a plurality of staples in a circular array to secure two lumens of tissue together. The stapling assembly may further drive a blade to sever any excess tissue interior of the circular array of staples. The motor is operable to rotate the drive assembly to thereby translate the firing assembly. A resilient member biases the firing assembly proximally. Through cooperation between the firing assembly and the resilient member, the firing assembly is driven distally and proximally to complete a firing stroke in response to rotation of the drive assembly through a single revolution.
    Type: Application
    Filed: September 23, 2013
    Publication date: March 26, 2015
    Inventors: Richard L. Leimbach, Richard F. Schwemberger, John P. Measamer, Johnny H. Alexander, III, Christopher C. Miller, Brian F. DiNardo, Jason M. Rector