Patents by Inventor Chester O. Baxter
Chester O. Baxter 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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Publication number: 20240130754Abstract: A powered stapling device includes a circular stapling head assembly, an anvil, a trocar coupled to the anvil, and a motor also coupled to the trocar. The motor is configured to advance and retract the trocar. The device further includes a control circuit coupled to the motor, in which the control circuit is configured to determine a position of the trocar in one of a plurality of zones, and set an anvil closure rate based on the determined position of the trocar.Type: ApplicationFiled: January 3, 2024Publication date: April 25, 2024Inventors: Frederick E. Shelton, IV, Gregory J. Bakos, Jason L. Harris, Chester O. Baxter, III
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Patent number: 11963682Abstract: A surgical staple cartridge is disclosed comprising a plurality of staples removably stored within the surgical staple cartridge. The staples comprise staple legs which extend from a staple base portion. The staple legs comprise staple tips configured to pierce tissue and contact a corresponding forming pocket of an anvil of surgical stapling instrument. The staples further comprise zones having different hardnesses.Type: GrantFiled: May 17, 2022Date of Patent: April 23, 2024Assignee: Cilag GmbH InternationalInventors: Frederick E. Shelton, IV, Jeffrey S. Swayze, Chester O. Baxter, III, Chad E. Eckert, Jason L. Harris, Jerome R. Morgan
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Patent number: 11957339Abstract: 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: GrantFiled: November 9, 2021Date of Patent: April 16, 2024Assignee: Cilag GmbH InternationalInventors: Jason L. Harris, Frederick E. Shelton, IV, Chester O. Baxter, III, Gregory J. Bakos, Taylor W. Aronhalt, Christopher J. Hess, Jerome R. Morgan
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Patent number: 11957337Abstract: A surgical stapling assembly is disclosed. The assembly can include a cartridge body having cavities defined therein forming a pattern of openings in the deck of the cartridge body. The pattern can include longitudinally-repeating clusters of cavity ends. The assembly can also include fasteners removably positioned in the cavities. The pattern of openings can comprise openings on a first side of the cartridge body comprising inner openings each defining an inner proximal-to-distal axis oriented parallel to the longitudinal axis, outer openings each defining an outer proximal-to-distal axis obliquely-oriented relative to the longitudinal axis at an outer angle, and intermediate openings each defining an intermediate proximal-to-distal axis obliquely-oriented relative to the longitudinal axis at an intermediate angle, wherein the intermediate angle is different than the outer angle.Type: GrantFiled: October 18, 2021Date of Patent: April 16, 2024Assignee: Cilag GmbH InternationalInventors: Michael J. Stokes, Mark S. Zeiner, Chester O. Baxter, III, Jason L. Harris, Anil K. Nalagatla
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Patent number: 11950776Abstract: A surgical instrument equipped with a coupler arrangement for coupling end effectors to an elongated shaft assembly of the surgical instrument. The end effectors may include a pair of jaws in the form of a carrier supporting a surgical staple cartridge and an anvil. The anvil is movable relative to the carrier in opening and closing directions. The end effector may include an articulation joint that facilitates pivotal travel of the carrier and anvil as a unit relative to the elongated shaft assembly in the same directions in which the anvil is opened and closed relative to the carrier.Type: GrantFiled: March 4, 2022Date of Patent: April 9, 2024Assignee: Cilag GmbH InternationalInventors: Chester O. Baxter, III, Frederick E. Shelton, IV
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Patent number: 11944306Abstract: A surgical stapling instrument including a staple sled which can be advanced and/or retracted relative to first and second jaw members, wherein the staple sled can be configured to deploy staples from a staple cartridge in one of the first and second jaw members. In at least one embodiment, the other of the first and second jaw members can include an anvil having at least one forming surface which can be configured to deform the staples as they are deployed from the staple cartridge. In at least one form of the invention, the anvil can be movably adjustable relative to the staple cartridge in order to adjust the distance in which the staples are deformed. In various embodiments, the anvil can be adjusted by a slidable adjusting plate and/or a rotatable cam.Type: GrantFiled: September 13, 2021Date of Patent: April 2, 2024Assignee: Cilag GmbH InternationalInventors: Chester O. Baxter, III, James J. Bedi
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Publication number: 20240099716Abstract: In various embodiments, a tissue thickness compensator can comprise one or more capsules and/or pockets comprising at least one medicament therein. In at least one embodiment, staples can be fired through the tissue thickness compensator to rupture the capsules. In certain embodiments, a firing member, or knife, can be advanced through the tissue thickness compensator to rupture the capsules.Type: ApplicationFiled: December 7, 2023Publication date: March 28, 2024Inventors: Frederick E. Shelton, IV, Katherine J. Schmid, Charles J. Scheib, Taylor W. Aronhalt, Matthew M. Lang, Steven G. Hall, Chester O. Baxter, III
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Patent number: 11937820Abstract: Jaws of a surgical clip applier with housings formed thereon and methods for manufacturing and use during a procedure to apply surgical clips to a vessel, duct, shunt, etc. are provided. In one exemplary embodiment, a surgical clip applier is provided having jaws on a distal end thereof with a rigid internal frame and an outer housing formed around the internal frame. The jaws of the surgical clip applier can include a variety of features to facilitate placement of surgical clips, including features to align a clip with the jaws and to prevent clip fallout during formation.Type: GrantFiled: February 22, 2021Date of Patent: March 26, 2024Assignee: CILAG GMBH INTERNATIONALInventors: Michael J. Stokes, Chester O. Baxter, III, Carol J. Wynn
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Patent number: 11931025Abstract: A surgical instrument comprising an end effector and a closure drive configured to close the end effector is disclosed. The surgical instrument further comprises a lock configured to hold a closure actuator of the closure drive in a partially-closed position. The surgical instrument further comprises an articulation drive operable to rotate the end effector about an articulation joint when the closure drive is in its partially-closed position.Type: GrantFiled: October 29, 2020Date of Patent: March 19, 2024Assignee: CILAG GMBH INTERNATIONALInventor: Chester O. Baxter, III
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Publication number: 20240074752Abstract: A tissue thickness compensator may generally comprise a first layer comprising a first biocompatible material sealingly enclosed in a water impermeable material and a second layer comprising a second biocompatible material comprising at least one encapsulation, wherein the first biocompatible material expands when contacted with a fluid. The tissue thickness compensator may comprise a haemostatic agent, an anti-inflammatory agent, an antibiotic agent, anti-microbial agent, an anti-adhesion agent, an anti-coagulant agent, a medicament, and/or pharmaceutically active agent. The encapsulation may comprise a biodegradable material to degrade in vivo and/or in situ. The tissue thickness compensator may comprise a hydrogel. The reaction product may comprise a fluid-swellable composition. Articles of manufacture comprising the tissue thickness compensator and methods of making and using the tissue thickness compensator are also described.Type: ApplicationFiled: November 8, 2023Publication date: March 7, 2024Inventors: Chester O. Baxter, III, Frederick E. Shelton, IV, Charles J. Scheib, Christopher W. Widenhouse, William B. Weisenburgh, II
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Patent number: 11918213Abstract: Surgical end effectors and fastener cartridges having firing lockout arrangements for preventing or limit a firing stroke when a cartridge has not been operably installed in the end effector or a spent cartridge has not been replaced.Type: GrantFiled: August 20, 2019Date of Patent: March 5, 2024Assignee: Cilag GmbH InternationalInventors: Frederick E. Shelton, IV, Jeffrey S. Swayze, Jerome R. Morgan, Chester O. Baxter, III
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Patent number: 11918210Abstract: A staple cartridge is disclosed. The staple cartridge can comprise a cartridge body comprising a deck and a bottom surface opposite the deck. The staple cartridge can comprise a plurality of staple cavities, wherein each staple cavity extends into the cartridge body from the deck to the bottom surface. Additionally, a plurality of wells can be defined into the staple cartridge from the deck to a lowermost surface of the well. A plurality of staples can be removably positioned in the staple cavities. The staple cartridge can comprise a tissue thickness compensator releasably secured to the cartridge body, wherein the tissue thickness compensator comprises a compensator body and a plurality of extensions extending from the compensator body into the wells, wherein at least one extension is compressed within one of the wells. Each well can surround at least one staple cavity and/or can extend between at least two staple cavities.Type: GrantFiled: June 13, 2022Date of Patent: March 5, 2024Assignee: Cilag GmbH InternationalInventors: Frederick E. Shelton, IV, Lauren S. Weaner, Jerome R. Morgan, Michael J. Vendely, Taylor W. Aronhalt, Chester O. Baxter, III, Mark S. Zeiner
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Patent number: 11918212Abstract: A surgical instrument including a surgical end effector and a threaded rotary input shaft. An actuator member is in operable engagement with the surgical end effector and is in selective threaded engagement with the threaded rotary input shaft such that when the actuator member is in an engaged configuration, rotation of said threaded rotary input shaft causes the actuator member to move axially to impart an actuation motion to the surgical end effector and when the actuator member is in a disengaged configuration, rotation of the threaded rotary input shaft will not be imparted to the actuator member. A switch may be employed for selectively moving the actuator between the engaged and disengaged configurations. A locking system may be employed for preventing axial movement of the actuator member when the actuator member is in the disengaged configuration.Type: GrantFiled: August 12, 2019Date of Patent: March 5, 2024Assignee: Cilag GmbH InternationalInventors: Frederick E. Shelton, IV, Chester O. Baxter, III, Jerome R. Morgan, David C. Yates, Jason L. Harris
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Patent number: 11911032Abstract: A replaceable staple cartridge is disclosed which is seatable in a jaw of a surgical stapling instrument. If the staple cartridge is not fully seated in the jaw, the closure of the surgical stapling instrument will fully seat the staple cartridge.Type: GrantFiled: December 19, 2019Date of Patent: February 27, 2024Assignee: Cilag GmbH InternationalInventors: Frederick E. Shelton, IV, Jason L. Harris, Chester O. Baxter, III, Michael J. Stokes
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Patent number: 11911045Abstract: A method for adjusting control parameters of a clip applier using a surgical hub is disclosed. The method comprises gathering data during a first surgical procedure, evaluating the gathered data to determine the appropriate operation of a clip applier in a subsequent surgical procedure, gathering data during the operation of the clip applier in the subsequent surgical procedure, determining if the operation of the clip applier needs to be adjusted based on the data gathered during the subsequent surgical procedure, and adjusting the operation of the clip applier based on the data gathered during the subsequent surgical procedure.Type: GrantFiled: October 26, 2018Date of Patent: February 27, 2024Assignee: Cllag GmbH InternationalInventors: Frederick E. Shelton, IV, Michael J. Stokes, Gregory G. Scott, Nicholas M. Morgan, Disha V. Estera, Jason L. Harris, Chester O. Baxter, III, Daniel J. Mumaw
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Patent number: 11903587Abstract: A method of adjusting a staple parameter of a surgical stapling instrument is disclosed. The method includes determining, by a control circuit of the surgical stapling instrument, a first stroke length for a first staple driver of the surgical stapling instrument to drive a first row of staples of a circular stapling head assembly of the surgical stapling instrument; detecting, by the control circuit, a malformed staple in the first row of staples; adjusting, by the control circuit, the staple parameter, based on the detection of the malformed staple; and determining, by the control circuit, a second stroke length for a second staple driver of the surgical stapling instrument to drive a second row of staples of the circular stapling head assembly.Type: GrantFiled: July 12, 2021Date of Patent: February 20, 2024Assignee: Cilag GmbH InternationalInventors: Frederick E Shelton, IV, Gregory J. Bakos, Jason L. Harris, Chester O. Baxter, III
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Patent number: 11903582Abstract: A surgical device having at least one rotary input screw in the end effector is provided. A rotary input screw can extend through a central longitudinal portion of the end effector. The end effector can include an improved closure system, firing systems, leveraging and alignment features between the staple cartridge and the surgical device, staple cartridges having multi-staple drivers, single-firing knifes and lockout/safety features for the same, and/or modified staple patterns, for example. Certain components can be 3D-printed components.Type: GrantFiled: March 24, 2021Date of Patent: February 20, 2024Assignee: Cilag GmbH InternationalInventors: Chester O. Baxter, III, Frederick E. Shelton, IV, Adam D. Hensel
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Patent number: 11896218Abstract: A surgical stapling assembly is disclosed. The surgical stapling assembly can include a first jaw, a second jaw, an articulation joint, a closure drive comprising a first flexible rotary drive extending through the articulation joint, and a firing drive comprising a second flexible rotary drive extending through the articulation joint and rotatable independent of the first flexible rotary drive. The surgical stapling assembly can further include a 3D-printed component.Type: GrantFiled: March 24, 2021Date of Patent: February 13, 2024Assignee: Cilag GmbH InternationalInventors: Gregory J. Bakos, Devanathan Raghavan, Geoffrey C. Hueil, Anil K. Nalagatla, Frederick E. Shelton, IV, Jason L. Harris, Adam D. Hensel, Seth D. Holdmeyer, Kevin M. Fiebig, Tylor C. Muhlenkamp, Chester O. Baxter, III
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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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Publication number: 20240041488Abstract: A surgical instrument comprising an end effector is disclosed. The end effector comprises a surgical dissector. The surgical dissector can apply mechanical and/or electrosurgical energy to treated tissue.Type: ApplicationFiled: June 23, 2023Publication date: February 8, 2024Inventors: Frederick E. Shelton, IV, Jason L. Harris, Chester O. Baxter, III