Patents by Inventor Anil K. Nalagatla
Anil K. Nalagatla 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: 11832816Abstract: 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. The surgical stapling assembly can be configured to form different staple shapes, such as non-planar staples and planar staples, can include an eccentrically-driven firing assembly, and/or can include a floatable component. The surgical stapling assembly can include a staple cartridge including a longitudinal support beam.Type: GrantFiled: March 24, 2021Date of Patent: December 5, 2023Assignee: Cilag GmbH InternationalInventors: Gregory J. Bakos, Devanathan Raghavan, Geoffrey C. Hueil, Anil K. Nalagatla, Frederick E. Shelton, IV, Jason L. Harris
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Patent number: 11832814Abstract: A staple driver actuator for a surgical stapler includes a base having at least one bottom surface. The bottom surface defines a plane and is configured to slide longitudinally relative to a jaw of the surgical stapler. The base also has at least one top surface parallel to the plane, a distal lower cam surface inclined relative to the plane, and at least one distal upper cam surface inclined relative to the plane. The at least one distal upper cam surface is opposed from the distal lower cam surface. The staple driver actuator further includes at least one rail extending upwardly from the base. The rail includes at least one rail cam surface longitudinally spaced apart from the distal upper cam surface, and the rail cam surface is inclined relative to the plane.Type: GrantFiled: November 4, 2020Date of Patent: December 5, 2023Assignee: Cilag GmbH InternationalInventors: Anil K. Nalagatla, Frederick E. Shelton, IV
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Publication number: 20230346373Abstract: 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: ApplicationFiled: June 29, 2023Publication date: November 2, 2023Inventors: 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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Publication number: 20230338027Abstract: A staple cartridge configured for use with a surgical stapler includes a cartridge body, a deck defined configured to compress tissue against an anvil of the surgical stapler, and a plurality of staple openings formed in the deck. A plurality of staples is disposed within the staple openings, with each staple having a pair of legs. A plurality of staple drivers is also disposed within the staple openings, with the staple drivers being actuatable to drive the staples through tissue and against the anvil to form the legs. Each of the staple drivers includes a driver body, a first pocket disposed on a first lateral side of the driver body, and a second pocket disposed on a second lateral side of the driver body. The first and second pockets are configured to receive the legs of the respective staple when the legs are formed against the anvil.Type: ApplicationFiled: July 6, 2023Publication date: October 26, 2023Inventors: Brian D. Schings, William J. White, Jason D. Jones, Carol J. Wynn, Anil K. Nalagatla, Andrew C. Deck
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Patent number: 11766258Abstract: A surgical stapling anvil is disclosed comprising an anvil body including a tissue-facing surface, a plurality of staple forming pockets, and a longitudinal slot. The longitudinal slot comprises a first portion configured to receive a cutting edge of a firing member therethrough and a second portion configured to receive an anvil-camming portion of the firing member therethrough. The anvil further comprises an anvil cap welded to the anvil body, wherein the anvil cap comprises a welded portion and a non-welded portion, wherein the non-welded portion comprises a non-welded width, and wherein the non-welded width is less than or equal to about 105% of the width of the second portion.Type: GrantFiled: April 21, 2021Date of Patent: September 26, 2023Assignee: Cilag GmbH InternationalInventors: Frederick E. Shelton, IV, Anil K. Nalagatla, Jerome R. Morgan, Gregory J. Bakos, Jason L. Harris
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Patent number: 11744585Abstract: A method is used to manufacture a lower jaw of an end effector of a surgical instrument. The method includes providing a lower jaw that includes a U-shaped body portion. The U-shaped body portion includes a bottom wall interposed between first and second opposing side walls. The method also includes forming at least one feature into at least one of the first and second side walls, wherein the at least one feature has a near net shape. The method also includes subsequently machining the at least one feature to have a machined shape.Type: GrantFiled: May 27, 2021Date of Patent: September 5, 2023Assignee: Cilag GmbH InternationalInventors: Anil K. Nalagatla, Frederick E. Shelton, IV, Chester O. Baxter, III, Jason L. Harris
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Patent number: 11737752Abstract: A staple cartridge configured for use with a surgical stapler includes a cartridge body, a deck defined configured to compress tissue against an anvil of the surgical stapler, and a plurality of staple openings formed in the deck. A plurality of staples is disposed within the staple openings, with each staple having a pair of legs. A plurality of staple drivers is also disposed within the staple openings, with the staple drivers being actuatable to drive the staples through tissue and against the anvil to form the legs. Each of the staple drivers includes a driver body, a first pocket disposed on a first lateral side of the driver body, and a second pocket disposed on a second lateral side of the driver body. The first and second pockets are configured to receive the legs of the respective staple when the legs are formed against the anvil.Type: GrantFiled: December 20, 2021Date of Patent: August 29, 2023Assignee: Cilag GmbH InternationalInventors: Brian D. Schings, William J. White, Jason D. Jones, Carol J. Wynn, Anil K. Nalagatla, Andrew C. Deck
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Patent number: 11737755Abstract: A surgical instrument is disclosed which comprises a staple firing system and a tissue cutting system. In various instances, the instrument is configured to prevent the tissue cutting system from being operated before the staple firing system has been fully actuated. In certain instances, the instrument is configured to prevent the tissue cutting system from being operated before the staple firing system has been actuated to sufficiently deform the staples.Type: GrantFiled: June 29, 2021Date of Patent: August 29, 2023Assignee: Cilag GmbH InternationalInventors: Anil K. Nalagatla, Sudhir B. Patel, Frederick E. Shelton, IV
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Patent number: 11730478Abstract: A surgical instrument is disclosed which comprises a staple firing system and a tissue cutting system. In various instances, the instrument is configured to prevent the tissue cutting system from being operated before the staple firing system has been fully actuated. In certain instances, the instrument is configured to prevent the tissue cutting system from being operated before the staple firing system has been actuated to sufficiently deform the staples.Type: GrantFiled: September 27, 2021Date of Patent: August 22, 2023Assignee: Cilag GmbH InternationalInventors: Anil K. Nalagatla, Sudhir B. Patel, Frederick E. Shelton, IV
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Patent number: 11701112Abstract: A staple driver actuator for a surgical stapler includes a base having at least one bottom surface. The bottom surface defines a plane and is configured to slide longitudinally relative to a jaw of the surgical stapler. The base also has at least one top surface parallel to the plane. The staple driver actuator further includes at least one rail extending upwardly from the base. The rail includes at least one first cam surface. The first cam surface is inclined relative to the plane, and the first cam surface is longitudinally aligned with at least a portion of the at least one top surface.Type: GrantFiled: November 4, 2020Date of Patent: July 18, 2023Assignee: Cilag GmbH InternationalInventors: Anil K. Nalagatla, Frederick E. Shelton, IV, Nicholas Fanelli
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Publication number: 20230132138Abstract: 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: ApplicationFiled: October 18, 2021Publication date: April 27, 2023Inventors: Michael J. Stokes, Mark S. Zeiner, Chester O. Baxter, III, Jason L. Harris, Anil K. Nalagatla
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Publication number: 20230117309Abstract: A method is used to manufacture an anvil of a circular surgical stapler. The anvil includes a head and a coupling feature that extends proximally from the head. The method includes forming each of the head and the coupling feature using at least one metal injection molding process. The method also includes after forming the coupling feature, machining a through bore into the coupling feature that extends completely through the coupling feature along a longitudinal axis of the coupling feature.Type: ApplicationFiled: October 18, 2021Publication date: April 20, 2023Inventor: Anil K. Nalagatla
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Publication number: 20230121658Abstract: 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: ApplicationFiled: October 18, 2021Publication date: April 20, 2023Inventors: Michael J. Stokes, Anil K. Nalagatla, Mark S. Zeiner, Chester O. Baxter, III, Disha V. Estera, Jason L. Harris, Laura S. Downing, Shannon L. Jones
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Publication number: 20230120983Abstract: 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: ApplicationFiled: October 18, 2021Publication date: April 20, 2023Inventors: Michael J. Stokes, Anil K. Nalagatla, Mark S. Zeiner, Chester O. Baxter, III, Disha V. Estera, Jason L. Harris, Laura S. Downing, Shannon L. Jones
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Publication number: 20230113273Abstract: A staple driver actuator for a surgical stapler includes a base having at least one bottom surface. The bottom surface defines a plane and is configured to slide longitudinally relative to a jaw of the surgical stapler. The staple driver actuator also includes a plurality of rails extending upwardly from the base. Each of the plurality of rails includes at least one cam surface, and each of the cam surfaces is inclined relative to the plane. The plurality of rails includes a laterally-opposed pair of outer rails and a laterally-opposed pair of inner rails. The staple driver actuator further includes a distal nose extending distally from at least a portion of the base and having at least one ledge surface. The ledge surface faces upwardly, is parallel to the plane, and is at least partially positioned distally relative to each of the outer and inner rails.Type: ApplicationFiled: September 30, 2022Publication date: April 13, 2023Inventors: Anil K. Nalagatla, Frederick E. Shelton, IV, Michael E. Setser, Geoffrey C. Hueil
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Publication number: 20230086789Abstract: A staple driver actuator for a surgical stapler includes a base having at least one bottom surface. The bottom surface defines a plane and is configured to slide longitudinally relative to a jaw of the surgical stapler. The base also has at least one top surface parallel to the plane. The staple driver actuator further includes at least one rail extending upwardly from the base. The rail includes at least one first cam surface. The first cam surface is inclined relative to the plane, and the first cam surface is longitudinally aligned with at least a portion of the at least one top surface.Type: ApplicationFiled: August 25, 2022Publication date: March 23, 2023Inventors: Anil K. Nalagatla, Frederick E. Shelton, IV, Nicholas Fanelli
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Publication number: 20230060075Abstract: A staple driver actuator for a surgical stapler includes a base having at least one bottom surface. The bottom surface defines a plane and is configured to slide longitudinally relative to a jaw of the surgical stapler. The base also has at least one top surface parallel to the plane. The staple driver actuator further includes at least one rail extending upwardly from the base. The rail includes at least one first cam surface. The first cam surface is inclined relative to the plane, and the first cam surface is longitudinally aligned with at least a portion of the at least one top surface.Type: ApplicationFiled: August 25, 2022Publication date: February 23, 2023Inventors: Anil K. Nalagatla, Frederick E. Shelton, IV, Nicholas Fanelli
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Publication number: 20230018950Abstract: A method for manufacturing a surgical stapling anvil is disclosed. The method comprises the steps of manufacturing a first anvil member and a second anvil member. The first anvil member comprises a tissue-facing surface comprising a plurality of staple forming pockets defined therein and a longitudinal cavity comprising anvil ledges configured to be engaged by anvil-camming portions of a firing member of a surgical stapling instrument. The method further comprises the steps of polishing the ledges of the first anvil member and welding the first anvil member and the second anvil member together.Type: ApplicationFiled: February 28, 2022Publication date: January 19, 2023Inventors: Frederick E. Shelton, IV, Jerome R. Morgan, Jason L. Harris, Gregory J. Bakos, Anil K. Nalagatla
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Patent number: 11553912Abstract: A staple driver actuator for a surgical stapler includes a base having at least one bottom surface. The bottom surface defines a plane and is configured to slide longitudinally relative to a stapling assembly of the surgical stapler. The staple driver actuator also includes at least one rail extending upwardly from the base. The at least one rail includes at least one rail cam surface, and the rail cam surface is inclined relative to the plane. The staple driver actuator further includes a first surface texture on a first portion of the staple driver actuator, and a second surface texture on a second portion of the staple driver actuator. The second surface texture is smoother than the first surface texture.Type: GrantFiled: November 4, 2020Date of Patent: January 17, 2023Assignee: Cilag GmbH InternationalInventors: Anil K. Nalagatla, Frederick E. Shelton, IV
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Patent number: 11540826Abstract: A staple driver actuator for a surgical stapler includes a base having at least one bottom surface. The bottom surface defines a plane and is configured to slide longitudinally relative to a jaw of the surgical stapler. The staple driver actuator also includes a plurality of rails extending upwardly from the base. Each of the plurality of rails includes at least one cam surface, and each of the cam surfaces is inclined relative to the plane. The plurality of rails includes a laterally-opposed pair of outer rails and a laterally-opposed pair of inner rails. The staple driver actuator further includes a distal nose extending distally from at least a portion of the base and having at least one ledge surface. The ledge surface faces upwardly, is parallel to the plane, and is at least partially positioned distally relative to each of the outer and inner rails.Type: GrantFiled: November 4, 2020Date of Patent: January 3, 2023Assignee: Cilag GmbH InternationalInventors: Anil K. Nalagatla, Frederick E. Shelton, IV, Michael E. Setser, Geoffrey C. Hueil