Patents by Inventor Christopher J. Hess

Christopher J. Hess 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: 11284881
    Abstract: Surgical access devices having wound closure features incorporated as part of the device are provided. The devices allow suture to be inserted directly into the device and operated to close an opening through which the device is disposed as or shortly after the device is removed from the surgical site. Further, the wound closure features allow for various orientations of wound closure to be achieved by adjusting an angle at which the suture enters tissue surrounding the opening to be closed. Some of the wound closure features provided for include openings formed in both the housing and cannula of the surgical access device, multiple openings formed in one or both the housing and cannula, locations of the openings being adjustable or otherwise movable, and various flexible seals. Other features, as well as methods of closing an opening through which the surgical access device was disposed, are also provided.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: March 29, 2022
    Assignee: Cilag GmbH International
    Inventors: Christopher J. Hess, Frederick E. Shelton, IV, Jerome R. Morgan, Ryan A. Bledsoe, Douglas E. Withers, Craig T. Gates
  • Patent number: 11284918
    Abstract: A cannula sleeve for a surgical trocar assembly. The cannula sleeve includes a hollow shaft, at least a portion of which is made of a rigid material, and a seal at the distal end of the hollow shaft, the seal being movable between a first open position and a second closed position. The shaft defines a proximal end, a distal end, a periphery, and a longitudinal axis. The shaft further includes a channel at the periphery substantially parallel to the longitudinal axis, the channel being in communication with the hollow shaft.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: March 29, 2022
    Assignee: Cilag GmbH Inlernational
    Inventors: David B. Griffith, Sean P. Conlon, William B. Weisenburgh, II, Christopher J. Hess, Kempton K. Carroll, II
  • Publication number: 20220071631
    Abstract: Methods for fabricating an anvil for a surgical stapling device. Various methods include forming an anvil body from a first material and a deformable anvil tip from a second material and attaching the deformable anvil tip to a distal end of the anvil body with a deformable second attachment member. Other methods include molding a deformable anvil tip to a distal end of an anvil body.
    Type: Application
    Filed: November 9, 2021
    Publication date: March 10, 2022
    Inventors: Jason L. Harris, Frederick E. Shelton, IV, Chester O. Baxter, III, Gregory J. Bakos, Taylor W. Aronhalt, Christopher J. Hess, Jerome R. Morgan
  • Patent number: 11207065
    Abstract: Methods for fabricating an anvil for a surgical stapling device. Various methods include forming an anvil body from a first material and a deformable anvil tip from a second material and attaching the deformable anvil tip to a distal end of the anvil body with a deformable second attachment member. Other methods include molding a deformable anvil tip to a distal end of an anvil body.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: December 28, 2021
    Assignee: Cilag GmbH International
    Inventors: Jason L. Harris, Frederick E. Shelton, IV, Chester O. Baxter, III, Gregory J. Bakos, Taylor W. Aronhalt, Christopher J. Hess, Jerome R. Morgan
  • Patent number: 11185327
    Abstract: A method of surgical stapling that uses a surgical instrument operable to compress, staple, and cut tissue. The instrument includes a body, a shaft, and an end effector with a pair of jaws. A placement tip extends distally from one of the jaws of the end effector. The method includes positioning the end effector at a desired site for surgical stapling. The method also includes controlling one or more of the jaws of the end effector to place the end effector in an open position. The method also includes positioning the end effector such that tissue is located between the jaws. The method also includes clamping the tissue between the jaws by moving at least one of the jaws toward the other jaw. The method also includes advancing a firing beam of the apparatus from a proximal position to a distal position.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: November 30, 2021
    Assignee: Cilag GmbH International
    Inventors: Jason L. Harris, Gregory J. Bakos, Chester O. Baxter, III, Frederick E. Shelton, IV, Hilary A. Reinhardt, Christopher J. Hess, Taylor W. Aronhalt, Daniel L. Baber
  • Publication number: 20210346022
    Abstract: A method of applying a buttress to a surgically cut and stapled site uses an end effector with a buttress applier cartridge assembly to load one or more buttress assemblies to the end effector. The buttress assemblies each include a buttress to support a staple formed therein as well an adhesive for adhering to the end effector. The adhesive of the buttress assemblies can include a pattern to assist in both attachment to the end effector and release from the end effector after cutting and stapling a tissue site. The buttress applier cartridge can include features that accommodate end effectors having various tip configurations, including straight tips and curved or bent tips.
    Type: Application
    Filed: May 11, 2021
    Publication date: November 11, 2021
    Inventors: Michael J. Vendely, Trevor J. Barton, Pamela M. Ridgley, Rebecca Spatholt, Christopher J. Hess, Heather Strang, Mark S. Zeiner, John V. Hunt, Emily A. Schellin, Frederick E. Shelton, IV, Jason L. Harris, David T. Krumanaker
  • Patent number: 11039834
    Abstract: An anvil for a surgical stapler. The anvil includes a staple-forming undersurface that has lines of staple-forming pockets that are configured to establish a flexible staple line. A plurality of anvil protrusions protrude from planar non-forming surface portions such that each anvil protrusion is adjacent to at least two staple-forming pockets to direct staples therein during a staple firing process and to engage the tissue that is being stapled.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: June 22, 2021
    Assignee: Cilag GmbH International
    Inventors: Jason L. Harris, Frederick E. Shelton, IV, Christopher J. Hess, Chester O. Baxter, III
  • Patent number: 11033269
    Abstract: A method of applying a buttress to a surgically cut and stapled site uses an end effector with a buttress applier cartridge assembly to load one or more buttress assemblies to the end effector. The buttress assemblies each include a buttress to support a staple formed therein as well an adhesive for adhering to the end effector. The adhesive of the buttress assemblies can include a pattern to assist in both attachment to the end effector and release from the end effector after cutting and stapling a tissue site. The buttress applier cartridge can include features that accommodate end effectors having various tip configurations, including straight tips and curved or bent tips.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: June 15, 2021
    Assignee: Cilag GmbH International
    Inventors: Michael J. Vendely, Trevor J. Barton, Pamela M. Ridgley, Rebecca Spatholt, Christopher J. Hess, Heather Strang, Mark S. Zeiner, John V. Hunt, Emily A. Schellin, Frederick E. Shelton, IV, Jason L. Harris, David T. Krumanaker
  • Publication number: 20210137512
    Abstract: Circular stapling instruments and anvil assemblies. The anvil assemblies may have collapsible anvil support members that may be inserted through an opening in a patient and then expanded to be attached to an anvil plate assembly that has a staple-forming surface thereon. The anvil support member is attachable to the anvil plate assembly in such a way that when the anvil assembly is coupled to the stapling head of a circular stapler, the staple-forming surface is in substantial registry with the staples supported in the stapling head. A variety of different anvil support members and anvil plate assemblies are disclosed.
    Type: Application
    Filed: August 20, 2020
    Publication date: May 13, 2021
    Inventors: Taylor W. Aronhalt, Frederick E. Shelton, IV, Christopher J. Schall, Joseph E. Young, Barry C. Worrell, Jerome R. Morgan, William B. Weisenburgh, II, Christopher J. Hess, Emily A. Schellin
  • Patent number: 10932806
    Abstract: A modular surgical instrument is disclosed. The modular surgical instrument comprises a control interface, a shaft extending from the control interface, an end effector extending from said shaft, and a control circuit. The control circuit is configured to sense the electrical potential applied to the modular surgical instrument, determine if the sensed electrical potential is above a predetermined threshold, and adjust the operation of the modular surgical instrument when the sensed electrical potential exceeds the predetermined threshold.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: March 2, 2021
    Assignee: Ethicon LLC
    Inventors: Frederick E. Shelton, IV, Jerome R. Morgan, Chester O. Baxter, III, Gregory J. Bakos, Jason L. Harris, Christopher J. Hess, David C. Yates
  • Patent number: 10912543
    Abstract: Devices and methods for delivering end effectors through surgical trocars are described herein. In one embodiment, a surgical end effector loading device is provided that includes a housing having a distal-facing first portion configured to couple with a proximal end of a surgical trocar, and an elongate second portion protruding distally from the first portion. The second portion can include a lumen formed therein and can be configured to extend into a working channel of the surgical trocar when the housing is coupled thereto. The device can also include at least one mating element coupled to the housing and configured to interface with a complementary mating element of the surgical trocar to restrict movement of the housing relative to the trocar, as well as an end effector retainer coupled to the housing and configured to selectively couple a surgical end effector to the housing.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: February 9, 2021
    Assignee: Ethicon LLC
    Inventors: Christopher J. Hess, Frederick E. Shelton, IV, Ryan A. Bledsoe, Jeffrey L. Savage, Craig T. Gates, Douglas E. Withers
  • Patent number: 10912561
    Abstract: An apparatus includes a housing a platform, and a first buttress assembly. The housing defines a gap configured to receive a portion of an end effector of a surgical stapler. The housing includes proximal and distal portions. A portion of the platform is exposed within the gap defined by the housing. The platform includes proximal and distal portions. The first buttress assembly is positioned on at least the proximal portion of the platform. The first buttress assembly is exposed in the gap defined by the housing. At least one of the distal portion of the platform or the distal portion of the housing includes a cavity configured to receive a curved distal tip of the end effector.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: February 9, 2021
    Assignee: Ethicon LLC
    Inventors: Jason L. Harris, Gregory J. Bakos, Christopher J. Hess
  • Patent number: 10898177
    Abstract: Circular stapling instruments and anvil assemblies. The anvil assemblies may have collapsible anvil support members that may be inserted through an opening in a patient and then expanded to be attached to an anvil plate assembly that has a staple-forming surface thereon. The anvil support member is attachable to the anvil plate assembly in such a way that when the anvil assembly is coupled to the stapling head of a circular stapler, the staple-forming surface is in substantial registry with the staples supported in the stapling head. A variety of different anvil support members and anvil plate assemblies are disclosed.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: January 26, 2021
    Assignee: Ethicon LLC
    Inventors: Taylor W. Aronhalt, Frederick E. Shelton, IV, Christopher J. Schall, Joseph E. Young, Barry C. Worrell, Jerome R. Morgan, William B. Weisenburgh, II, Christopher J. Hess, Emily A. Schellin
  • Publication number: 20200405341
    Abstract: A surgical stapling system including a driver and a staple where the driver is connected to the staple. In previous surgical stapling systems, the driver and the staple were not connected. A surgical stapling system in accordance with the present invention may have fewer components, less assembly and manufacturing time, and may accommodate larger staples which are at least partially embedded in the driver. In various embodiments, a surgical stapling system comprises a staple, the staple including a deformable member, and a stapler, the stapler including an anvil, a staple cartridge for removably storing the staple, and a cam movable between a first position and a second position. In these embodiments, the surgical stapling system further comprises a driver attached to the staple, the driver being operatively engaged with the cam to move the staple toward the anvil when the cam is moved between the first position and the second position.
    Type: Application
    Filed: July 9, 2020
    Publication date: December 31, 2020
    Inventors: Christopher J. Hess, Jerome R. Morgan, Frederick E. Shelton, IV, William B. Weisenburgh, II
  • Publication number: 20200405403
    Abstract: A method of using a surgical modular robotic assembly including an interchangeable motor pack, a hand-held surgical instrument, and a robotic surgical instrument is disclosed. The method includes releasably attaching an interface portion of the interchangeable motor pack to the hand-held surgical instrument, causing the interchangeable motor pack to drive a first surgical tool of the hand-held surgical instrument, stopping the interchangeable motor pack from driving the first surgical tool, disconnecting the interface portion from the hand-held surgical instrument, and releasably attaching the interface portion of the interchangeable motor pack to the robotic surgical instrument.
    Type: Application
    Filed: June 27, 2019
    Publication date: December 31, 2020
    Inventors: Frederick E. Shelton, IV, Jason L. Harris, Nicholas M. Morgan, Joshua P. Morgan, Christopher J. Hess, Chad E. Eckert, Daniel J. Mumaw, Kevin M. Fiebig
  • Publication number: 20200405415
    Abstract: Various cooling systems are disclosed for a robotic surgical system that comprises a robotic arm and an end effector movable by the robotic arm. A cooling assembly can comprise a first enclosure within a sterile environment and a second enclosure external to the sterile environment. The first enclosure can be fluidically isolated from the sterile environment. The first enclosure can comprises or house a motor configured to actuate the end effector in the sterile environment. The first enclosure and the second enclosure can be thermally and fluidically coupled to transfer thermal energy from the motor housed within the first enclosure.
    Type: Application
    Filed: June 27, 2019
    Publication date: December 31, 2020
    Inventors: Frederick E. Shelton, IV, Jason L. Harris, Nicholas M. Morgan, Joshua P. Morgan, Christopher J. Hess, Chad E. Eckert
  • Patent number: 10842517
    Abstract: A surgical instrument includes a body assembly, a shaft assembly that releasably attaches to the body assembly, and an end effector at a distal end of the shaft assembly. The body assembly includes a first support structure, a first electrical contact supported by the first support structure, and a first sealing surface. The shaft assembly includes a second support structure, a second electrical contact supported by the second support structure, and a second sealing surface. When the shaft assembly attaches to the body assembly, the first and second electrical contacts electrically couple to establish an electrical connection therebetween, and the first and second sealing surfaces sealingly engage to block fluid from reaching the electrical connection. At least one of the first or second sealing surfaces is movable relative to the respective support structure to facilitate the sealing engagement.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: November 24, 2020
    Assignee: Ethicon LLC
    Inventors: Ryan P. Posey, Taylor W. Aronhalt, Christopher J. Hess, Andrew Kolpitcke, Alexander R. Cuti, Gregory G. Scott, Frederick E. Shelton, IV, David C. Yates, Jason L. Harris, Gregory J. Bakos, Jeffery D. Bruns
  • Patent number: D901686
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: November 10, 2020
    Assignee: Ethicon LLC
    Inventors: Trevor J. Barton, Christopher J. Hess, John V. Hunt, Emily A. Schellin, Michael J. Vendely, Mark S. Zeiner
  • Patent number: D903115
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: November 24, 2020
    Assignee: Ethicon LLC
    Inventors: Mark S. Zeiner, Michael J. Vendely, Pamela M. Ridgley, Jason L. Harris, Christopher J. Hess, Gregory J. Bakos
  • Patent number: D938030
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: December 7, 2021
    Assignee: Cilag GmbH International
    Inventors: Mark S. Zeiner, Michael J. Vendely, Pamela M. Ridgley, Jason L. Harris, Christopher J. Hess, Gregory J. Bakos, John V. Hunt