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).

  • Patent number: 10159483
    Abstract: A surgical apparatus is disclosed which comprises a handle module and a detachable shaft module for collectively performing a surgical procedure. The handle module comprises a rotary drive system for driving the detachable shaft module, an electric motor coupled to the rotary drive system for powering the rotary drive system, one or more sensors, and a handle module processor circuit in communication with the one or more sensors and the electric motor. The handle module processor circuit is programmed to control the electric motor. The handle module processor circuit is also programmed to track and/or count an end-of-life parameter for the handle module based on input from the one or more sensors.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: December 25, 2018
    Assignee: Ethicon LLC
    Inventors: Andrew T. Beckman, Anil K. Nalagatla, Robert L. Koch, Jr., John A. Hibner, Frederick E. Shelton, IV
  • Patent number: 10149680
    Abstract: A surgical instrument comprising a gap setting system is disclosed.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: December 11, 2018
    Assignee: Ethicon LLC
    Inventors: Shailendra K. Parihar, John S. Kimsey, Robert L. Koch, Jr., Anil K. Nalagatla, Anthony T. Nguyen
  • Patent number: 10070867
    Abstract: A circular stapling instrument is provided. The circular stapling instrument includes a handle forming a cavity, a reciprocating drive shaft, a carrier cover, and a shaft assembly. The reciprocating drive shaft is detachably secured within the cavity of the handle. The carrier cover covers a portion of the reciprocating drive shaft within the cavity of the handle. The shaft assembly is detachably coupled with the handle.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: September 11, 2018
    Assignee: Ethicon LLC
    Inventors: Anil K. Nalagatla, Barry Thomas Jamison, Debasish Pradhan, David A. Deupree, Abdul Gani Sofi
  • 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
  • Patent number: 9814460
    Abstract: A surgical end effector for use in connection with a surgical instrument. In one form the end effector includes an end effector housing that is configured for operable attachment to the surgical instrument. A first end effector drive system is configured to linearly move a first end effector actuator between a first linear position and a second linear position in response to first rotary motions applied thereto by the surgical instrument. A second end effector drive system is configured to linearly move a second end effector actuator between a beginning and ending position in response to second rotary motions applied thereto by the surgical instrument. The instrument further includes a status assembly arrangement for provide an indication on the end effector housing of a linear location of at least one of the first and second end effector actuators.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: November 14, 2017
    Assignee: Ethicon LLC
    Inventors: John S. Kimsey, Anil K. Nalagatla, Frederick E. Shelton, IV, Kevin L. Houser
  • Patent number: 9788836
    Abstract: A surgical instrument includes an end effector with a first jaw and a second jaw. The instrument also includes a first drive assembly, a first motor coupled to the first drive assembly, a second drive assembly, a second motor coupled to the second drive assembly, a control module, and a closure trigger. The first motor is operable to motivate the first drive assembly, and the second motor is operable to motivate the second drive assembly. The control module is operably couplable to the first motor and the second motor. The closure trigger is movable during a closure stroke to transition the end effector to the approximated configuration, and to transition the control module from operable engagement with the first motor to operable engagement with the second motor.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: October 17, 2017
    Assignee: Ethicon LLC
    Inventors: Mark D. Overmyer, Jeffrey S. Swayze, Andrew T. Beckman, Darwin L. Schultz, Daniel L. Baber, David C. Yates, Anil K. Nalagatla
  • Publication number: 20170281173
    Abstract: A surgical stapling attachment configured to clamp, staple, and cut tissue is disclosed. The surgical stapling attachment comprises an attachment portion, a shaft assembly, an articulation joint, and an end effector assembly. The end effector assembly comprises a firing system configured to cut tissue only after the tissue has been stapled.
    Type: Application
    Filed: April 1, 2016
    Publication date: October 5, 2017
    Inventors: Frederick E. Shelton, IV, Anil K. Nalagatla, Sudhir B. Patel, Jason L. Harris
  • Publication number: 20170281164
    Abstract: A staple cartridge comprises an outer tissue-contacting surface comprising at least one first staple cavity. The at least one first staple cavity is configured to receive at least one first staple that includes a first staple leg with a first tip protruding beyond the outer tissue-contacting surface when the at least one first staple is in an unfired position. The staple cartridge includes an inner tissue-contacting surface comprising at least one second staple cavity. At least one pocket extender protrudes from the outer tissue-contacting surface, wherein the at least one pocket extender is configured to conceal the first tip when the at least one first staple is in the unfired position. The inner tissue-contacting surface cooperates with the outer tissue-contacting surface and the at least one pocket extender to define a contoured frame configured to reduce friction against tissue as the staple cartridge is moved relative to tissue.
    Type: Application
    Filed: April 1, 2016
    Publication date: October 5, 2017
    Inventors: Jason L. Harris, Frederick E. Shelton, IV, Anil K. Nalagatla
  • Publication number: 20170281170
    Abstract: A surgical stapling attachment is disclosed. The surgical stapling attachment comprises an attachment portion, a shaft assembly, an articulation joint, and an end effector assembly. The end effector assembly comprises a drive system comprising a closure drive and a firing drive configured to be selectively driven by a single input. The closure drive is configured to clamp tissue between an anvil and a staple cartridge assembly. The firing drive is configured to cut the tissue by deploying a knife and staple the tissue by ejecting a plurality of staples removably stored within the staple cartridge assembly.
    Type: Application
    Filed: April 1, 2016
    Publication date: October 5, 2017
    Inventors: Frederick E. Shelton, IV, Anil K. Nalagatla, Jason L. Harris, Adam D. Hensel
  • Publication number: 20170281155
    Abstract: A surgical stapling attachment is disclosed. The surgical stapling attachment comprises an attachment portion, a shaft assembly, an articulation joint, and an end effector assembly. The end effector assembly comprises a drive system comprising a main drive and a lockout drive driven by a single rotary input. The main drive is configured to capture, clamp, and staple tissue. The lockout drive is configured to prevent the main drive from being driven in the event a staple cartridge is not installed within the end effector assembly. Another lockout is provided to prevent the drive system from being actuated when a spent staple cartridge is installed within the end effector assembly.
    Type: Application
    Filed: April 1, 2016
    Publication date: October 5, 2017
    Inventors: Frederick E. Shelton, IV, Anil K. Nalagatla, Sudhir B. Patel, Jason L. Harris
  • Publication number: 20170281177
    Abstract: Circular and curved surgical stapling instruments are disclosed comprising circular and curved stapling configurations. A circular staple cartridge comprises a plurality of staples arranged in an inner row, an intermediate row, and an outer row. Staples in certain rows can have different unformed heights. Some arrangements include deck features that protrude from the staple cartridge deck. Various anvil arrangements are also disclosed to attain staples having different formed heights.
    Type: Application
    Filed: April 1, 2016
    Publication date: October 5, 2017
    Inventors: Jason L. Harris, Frederick E. Shelton, IV, Anil K. Nalagatla, Thomas E. Adams, Christopher C. Miller
  • Publication number: 20170281189
    Abstract: A surgical instrument comprising an end effector is disclosed. The end effector comprises a staple cartridge including a cartridge body comprising an annular array of staple cavities, staples removably stored in the staple cavities, a firing drive configured to eject the staples from the staple cavities, and a cutting member circumscribed by the staple cavities. The end effector further comprises an anvil including a tissue compression surface, forming surfaces configured to deform the staples and a tissue block. The anvil is movable toward the cartridge body to compress tissue between the cartridge body and the tissue block and the cutting member is configured to incise the tissue and the tissue block during a cutting stroke of the cutting member.
    Type: Application
    Filed: April 1, 2016
    Publication date: October 5, 2017
    Inventors: Anil K. Nalagatla, Jason L. Harris, Frederick E. Shelton, IV, Jerome R. Morgan
  • Patent number: 9750629
    Abstract: An apparatus for regulating the functioning of a patient's organ or duct includes an elongated member having a first end and a second end. A fastener is disposed on the first end of the elongated member. The fastener is configured to engage the second end of the elongated member so that the elongated member forms a loop around the organ or duct. A tension element is disposed for movement within the elongated member. A drive element is associated with and engages the tension element for causing the tension element to control the tension applied by the elongated member against a patient's body organ or duct. A tension release mechanism is associated with the tension element.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: September 5, 2017
    Assignee: ETHICON ENDO-SURGERY, INC.
    Inventors: Daniel F. Dlugos, Jr., Randal T. Byrum, Toralf Bork, Rocco Crivelli, Dean L. Garner, Alec J. Ginggen, Geoffrey C. Hueil, Donna L. Korvick, David T. Krumanaker, Amy L. Marcotte, Jeffrey D. Messerly, Kyle P. Moore, Daniel J. Mumaw, Anil K. Nalagatla, Mark S. Ortiz, Frederick E. Shelton, IV, Bret W. Smith, Jeffrey S. Swayze, Patrick J. Swindon, Richard W. Timm, Eric W. Thompson, Lauren S. Weaner
  • 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
  • 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: 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: 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: 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: 20170189021
    Abstract: A surgical instrument and method of manipulating tissue of a patient includes a body, a shaft assembly extending distally therefrom, and an end effector extending distally from the shaft assembly and configured to receive a cartridge for manipulating tissue. The end effector has a distal end portion, a proximal end portion, a gap between the distal and proximal end portions, and a retaining pin. The retaining pin includes a distal head and is selectively movable from an open position to a locked closed position. In the open position, the retaining pin is proximally positioned such that the gap is configured to receive tissue. In the locked closed position, the retaining pin extends across the gap and is configured to capture tissue within the gap. The distal head of the retaining pin is configured engage and secure the distal end portion relative to the proximal end portion via the retaining pin.
    Type: Application
    Filed: December 31, 2015
    Publication date: July 6, 2017
    Inventors: John S. Kimsey, Anil K. Nalagatla, Hector Chow, Sudhir Patel, Douglas B. Hoffman, Thomas Adams
  • Publication number: 20170056002
    Abstract: An end effector including an anvil and a staple cartridge assembly is disclosed. The staple cartridge assembly comprises a deck having steps defined thereon for compressing tissue positioned between the anvil and the staple cartridge assembly to different pressures. The staple cartridge assembly further comprises staples having different unformed heights removably stored therein. The staples are deformed against the anvil to different formed heights.
    Type: Application
    Filed: August 26, 2015
    Publication date: March 2, 2017
    Inventors: Anil K. Nalagatla, Brian DiNardo, Disha V. Labhasetwar, Chester O. Baxter, III, Jeffrey S. Swayze, Frederick E. Shelton, IV, Jerome R. Morgan, Jason L. Harris