Patents by Inventor Rao S. Bezwada

Rao S. Bezwada 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: 11877746
    Abstract: A buttress assembly is configured to temporarily adhere to a wet surgical stapler end effector. The buttress assembly includes a buttress body and a humidity tolerant adhesive material. The humidity tolerant adhesive material is applied to at least one side of the buttress body. The humidity tolerant adhesive material is configured to hold the buttress body to an underside of an anvil or a deck of a staple cartridge for at least five minutes in an environment of 100% relative humidity at approximately 37° C.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: January 23, 2024
    Assignee: Cilag GmbH International
    Inventors: Frederick E. Shelton, IV, Michael J. Vendely, Prudence A. Turner, Jackie J. Donners, Mark D. Timmer, Rao S. Bezwada, Aidan Craigwood, Caroline Hagerman, Ashley Easter, Kathrin Holtzmann
  • Patent number: 11849940
    Abstract: A buttress is applied to an end effector of a surgical stapler. The buttress is loaded on a platform of a buttress applier cartridge. The end effector is closed upon the platform. An adhesive layer of the buttress secures the buttress to the end effector. The buttress is thus adhered to the end effector when the end effector is opened. The end effector is then actuated on tissue of a patient, thereby stapling the buttress to the tissue.
    Type: Grant
    Filed: May 14, 2021
    Date of Patent: December 26, 2023
    Assignee: Cilag GmbH International
    Inventors: Michael J. Vendely, Trevor J. Barton, Jason L Harris, Charles J. Scheib, Emily A. Schellin, Prudence A. Vulhop, Steven G. Hall, Victoria Dalessandro, Jackie Donners, Mark Timmer, Rao S. Bezwada, Aidan Craigwood, Caroline Hagerman, Ashley Easter, Kathrin Holtzmann, Frederick E. Shelton, IV, Mark S. Zeiner
  • Patent number: 11832819
    Abstract: A method of applying a buttress to a surgical stapler end effector comprises positioning a buttress assembly between an anvil and a staple cartridge of the end effector. The buttress assembly comprises a buttress body and an adhesive material. The adhesive material faces either an underside of the anvil or a deck of the staple cartridge. The anvil is in an open position relative to the staple cartridge during the act of positioning the buttress assembly between the anvil and the staple cartridge. The method further comprises moving the anvil toward the staple cartridge then moving the anvil back to the open position. The buttress assembly is adhered to the underside of the anvil or the deck of the staple cartridge via the adhesive material with the anvil moved back to the open position. The adhesive material comprises a bioabsorbable polymer.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: December 5, 2023
    Assignee: Cilag GmbH International
    Inventors: Frederick E. Shelton, IV, Rao S. Bezwada, Jason L Harris, Prudence A. Vulhop, Mark S. Zeiner, Charles J. Scheib
  • Patent number: 11801048
    Abstract: A buttress is applied to an end effector of a surgical stapler. The buttress is loaded on a platform of a buttress applier cartridge. The end effector is closed upon the platform. An adhesive layer of the buttress secures the buttress to the end effector. The buttress is thus adhered to the end effector when the end effector is opened. The end effector is then actuated on tissue of a patient, thereby stapling the buttress to the tissue.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: October 31, 2023
    Assignee: Cilag GmbH International
    Inventors: Michael J. Vendely, Trevor J. Barton, Jason L. Harris, Charles J. Scheib, Emily A. Schellin, Prudence A. Vulhop, Steven G. Hall, Victoria Dalessandro, Jackie Donners, Mark Timmer, Rao S. Bezwada, Aidan Craigwood, Caroline Hagerman, Ashley Easter, Kathrin Holtzmann, Frederick E. Shelton, IV, Mark S. Zeiner
  • Patent number: 11779341
    Abstract: A method of applying a buttress to a surgical stapler end effector comprises positioning a buttress assembly between an anvil and a staple cartridge of the end effector. The buttress assembly comprises a buttress body and an adhesive material. The adhesive material faces either an underside of the anvil or a deck of the staple cartridge. The anvil is in an open position relative to the staple cartridge during the act of positioning the buttress assembly between the anvil and the staple cartridge. The method further comprises moving the anvil toward the staple cartridge then moving the anvil back to the open position. The buttress assembly is adhered to the underside of the anvil or the deck of the staple cartridge via the adhesive material with the anvil moved back to the open position. The adhesive material comprises a bioabsorbable polymer.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: October 10, 2023
    Assignee: Cilag GmbH International
    Inventors: Frederick E. Shelton, V, Rao S. Bezwada, Jason Harris, Prudence A. Vulhop, Mark Zeiner, Charles Scheib
  • Patent number: 11759205
    Abstract: A surgical stapler end effector comprises a staple cartridge, an anvil, and a buttress assembly. The staple cartridge comprises a plurality of staples and a deck. The staple cartridge is operable to drive the staples through the deck. The anvil is movable from an open position toward the staple cartridge to reach a closed position. The anvil includes an underside having staple forming surface configured to receive staples driven through the deck. The buttress assembly comprises a buttress body and an adhesive material. The adhesive material comprises a polymer. The polymer is bioabsorbable. The polymer has an inherent viscosity at or below 3.0 dL/g.
    Type: Grant
    Filed: November 3, 2020
    Date of Patent: September 19, 2023
    Assignee: Cilag GmbH International
    Inventors: Frederick E. Shelton, IV, Rao S. Bezwada, Christopher W. Widenhouse
  • Publication number: 20230113152
    Abstract: A method of applying a buttress to a surgical stapler end effector comprises positioning a buttress assembly between an anvil and a staple cartridge of the end effector. The buttress assembly comprises a buttress body and an adhesive material. The adhesive material faces either an underside of the anvil or a deck of the staple cartridge. The anvil is in an open position relative to the staple cartridge during the act of positioning the buttress assembly between the anvil and the staple cartridge. The method further comprises moving the anvil toward the staple cartridge then moving the anvil back to the open position. The buttress assembly is adhered to the underside of the anvil or the deck of the staple cartridge via the adhesive material with the anvil moved back to the open position. The adhesive material comprises a bioabsorbable polymer.
    Type: Application
    Filed: September 22, 2022
    Publication date: April 13, 2023
    Inventors: Frederick E. Shelton, IV, Rao S. Bezwada, Jason L. Harris, Prudence A. Vulhop, Mark S. Zeiner, Charles J. Scheib
  • Publication number: 20230072574
    Abstract: A buttress is applied to an end effector of a surgical stapler. The buttress is loaded on a platform of a buttress applier cartridge. The end effector is closed upon the platform. An adhesive layer of the buttress secures the buttress to the end effector. The buttress is thus adhered to the end effector when the end effector is opened. The end effector is then actuated on tissue of a patient, thereby stapling the buttress to the tissue.
    Type: Application
    Filed: September 22, 2022
    Publication date: March 9, 2023
    Inventors: Michael J. Vendely, Trevor J. Barton, Jason L. Harris, Charles J. Scheib, Emily A. Schellin, Prudence A. Vulhop, Steven G. Hall, Victoria Dalessandro, Jackie Donners, Mark D. Timmer, Rao S. Bezwada, Aidan Craigwood, Caroline Hagerman, Ashley Easter, Kathrin Holtzmann, Frederick E. Shelton, IV, Mark S. Zeiner
  • Patent number: 11369380
    Abstract: A method of applying a buttress to a surgical stapler end effector comprises positioning a buttress assembly between an anvil and a staple cartridge of the end effector. The buttress assembly comprises a buttress body and an adhesive material. The adhesive material faces either an underside of the anvil or a deck of the staple cartridge. The anvil is in an open position relative to the staple cartridge during the act of positioning the buttress assembly between the anvil and the staple cartridge. The method further comprises moving the anvil toward the staple cartridge then moving the anvil back to the open position. The buttress assembly is adhered to the underside of the anvil or the deck of the staple cartridge via the adhesive material with the anvil moved back to the open position. The adhesive material comprises a bioabsorbable polymer.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: June 28, 2022
    Assignee: Cilag GmbH International
    Inventors: Frederick E. Shelton, IV, Rao S. Bezwada, Jason L. Harris, Prudence A. Turner, Mark S. Zeiner, Charles J. Scheib
  • Publication number: 20220183678
    Abstract: A buttress is applied to an end effector of a surgical stapler. The buttress is loaded on a platform of a buttress applier cartridge. The end effector is closed upon the platform. An adhesive layer of the buttress secures the buttress to the end effector. The buttress is thus adhered to the end effector when the end effector is opened. The end effector is then actuated on tissue of a patient, thereby stapling the buttress to the tissue.
    Type: Application
    Filed: December 20, 2021
    Publication date: June 16, 2022
    Inventors: Michael J. Vendely, Trevor J. Barton, Jason L. Harris, Charles J. Scheib, Emily A. Schellin, Prudence A. Turner, Steven G. Hall, Victoria Dalessandro, Jackie J. Donners, Mark D. Timmer, Rao S. Bezwada, Aidan Craigwood, Caroline Hagerman, Ashley Easter, Kathrin Holtzmann, Frederick E. Shelton, IV, Mark S. Zeiner
  • Publication number: 20220175382
    Abstract: A method of applying a buttress to a surgical stapler end effector comprises positioning a buttress assembly between an anvil and a staple cartridge of the end effector. The buttress assembly comprises a buttress body and an adhesive material. The adhesive material faces either an underside of the anvil or a deck of the staple cartridge. The anvil is in an open position relative to the staple cartridge during the act of positioning the buttress assembly between the anvil and the staple cartridge. The method further comprises moving the anvil toward the staple cartridge then moving the anvil back to the open position. The buttress assembly is adhered to the underside of the anvil or the deck of the staple cartridge via the adhesive material with the anvil moved back to the open position. The adhesive material comprises a bioabsorbable polymer.
    Type: Application
    Filed: December 20, 2021
    Publication date: June 9, 2022
    Inventors: Frederick E. Shelton, IV, Rao S. Bezwada, Jason L. Harris, Prudence A. Turner, Mark S. Zeiner, Charles J. Scheib
  • Publication number: 20220167978
    Abstract: A buttress assembly is configured to temporarily adhere to a wet surgical stapler end effector. The buttress assembly includes a buttress body and a humidity tolerant adhesive material. The humidity tolerant adhesive material is applied to at least one side of the buttress body. The humidity tolerant adhesive material is configured to hold the buttress body to an underside of an anvil or a deck of a staple cartridge for at least five minutes in an environment of 100% relative humidity at approximately 37° C.
    Type: Application
    Filed: December 9, 2021
    Publication date: June 2, 2022
    Inventors: Frederick E. Shelton, IV, Michael J. Vendely, Prudence A. Turner, Jackie J. Donners, Mark D. Timmer, Rao S. Bezwada, Aidan Craigwood, Caroline Hagerman, Ashley Easter, Kathrin Holtzmann
  • Patent number: 11253253
    Abstract: A buttress is applied to an end effector of a surgical stapler. The buttress is loaded on a platform of a buttress applier cartridge. The end effector is closed upon the platform. An adhesive layer of the buttress secures the buttress to the end effector. The buttress is thus adhered to the end effector when the end effector is opened. The end effector is then actuated on tissue of a patient, thereby stapling the buttress to the tissue.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: February 22, 2022
    Assignee: Cilag GmbH International
    Inventors: Michael J. Vendely, Trevor J. Barton, Jason L. Harris, Charles J. Scheib, Emily A. Schellin, Prudence A. Turner, Steven G. Hall, Victoria Dalessandro, Jackie Donners, Mark Timmer, Rao S. Bezwada, Aidan Craigwood, Caroline Hagerman, Ashley Easter, Kathrin Holtzmann, Frederick E. Shelton, IV, Mark S. Zeiner
  • Patent number: 11234699
    Abstract: A buttress assembly is configured to temporarily adhere to a wet surgical stapler end effector. The buttress assembly includes a buttress body and a humidity tolerant adhesive material. The humidity tolerant adhesive material is applied to at least one side of the buttress body. The humidity tolerant adhesive material is configured to hold the buttress body to an underside of an anvil or a deck of a staple cartridge for at least five minutes in an environment of 100% relative humidity at approximately 37° C.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: February 1, 2022
    Assignee: Cilag GmbH International
    Inventors: Frederick E. Shelton, IV, Michael J. Vendely, Prudence A. Turner, Jackie Donners, Mark Timmer, Rao S. Bezwada, Aidan Craigwood, Caroline Hagerman, Ashley Easter, Kathrin Holtzmann
  • Publication number: 20210330323
    Abstract: A buttress is applied to an end effector of a surgical stapler. The buttress is loaded on a platform of a buttress applier cartridge. The end effector is closed upon the platform. An adhesive layer of the buttress secures the buttress to the end effector. The buttress is thus adhered to the end effector when the end effector is opened. The end effector is then actuated on tissue of a patient, thereby stapling the buttress to the tissue.
    Type: Application
    Filed: May 14, 2021
    Publication date: October 28, 2021
    Inventors: Michael J. Vendely, Trevor J. Barton, Jason L. Harris, Charles J. Scheib, Emily A. Schellin, Prudence A. Vulhop, Steven G. Hall, Victoria Dalessandro, Jackie Donners, Mark Timmer, Rao S. Bezwada, Aidan Craigwood, Caroline Hagerman, Ashley Easter, Kathrin Holtzmann, Frederick E. Shelton, IV, Mark S. Zeiner
  • Patent number: 11058419
    Abstract: A buttress is applied to an end effector of a surgical stapler. The buttress is loaded on a platform of a buttress applier cartridge. The end effector is closed upon the platform. An adhesive layer of the buttress secures the buttress to the end effector. The buttress is thus adhered to the end effector when the end effector is opened. The end effector is then actuated on tissue of a patient, thereby stapling the buttress to the tissue.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: July 13, 2021
    Assignee: Cilag GmbH International
    Inventors: Michael J. Vendely, Trevor J. Barton, Jason L. Harris, Charles J. Scheib, Emily A. Schellin, Prudence A. Turner, Steven G. Hall, Victoria Dalessandro, Jackie Donners, Mark Timmer, Rao S. Bezwada, Aidan Craigwood, Caroline Hagerman, Ashley Easter, Kathrin Holtzmann, Frederick E. Shelton, IV, Mark S. Zeiner
  • Publication number: 20210204947
    Abstract: A method of applying a buttress to a surgical stapler end effector comprises positioning a buttress assembly between an anvil and a staple cartridge of the end effector. The buttress assembly comprises a buttress body and an adhesive material. The adhesive material faces either an underside of the anvil or a deck of the staple cartridge. The anvil is in an open position relative to the staple cartridge during the act of positioning the buttress assembly between the anvil and the staple cartridge. The method further comprises moving the anvil toward the staple cartridge then moving the anvil back to the open position. The buttress assembly is adhered to the underside of the anvil or the deck of the staple cartridge via the adhesive material with the anvil moved back to the open position. The adhesive material comprises a bioabsorbable polymer.
    Type: Application
    Filed: December 22, 2020
    Publication date: July 8, 2021
    Inventors: Frederick E. Shelton, IV, Rao S. Bezwada, Jason L. Harris, Prudence A. Vulhop, Mark S. Zeiner, Charles J. Scheib
  • Patent number: 11051806
    Abstract: A buttress is applied to an end effector of a surgical stapler. The buttress is loaded on a platform of a buttress applier cartridge. The end effector is closed upon the platform. An adhesive layer of the buttress secures the buttress to the end effector. The buttress is thus adhered to the end effector when the end effector is opened. The end effector is then actuated on tissue of a patient, thereby stapling the buttress to the tissue.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: July 6, 2021
    Assignee: Cilag GmbH International
    Inventors: Michael J. Vendely, Trevor J. Barton, Jason L. Harris, Charles J. Scheib, Emily A. Schellin, Prudence A. Turner, Steven G. Hall, Victoria Dalessandro, Jackie Donners, Mark Timmer, Rao S. Bezwada, Aidan Craigwood, Caroline Hagerman, Ashley Easter, Kathrin Holtzmann, Frederick E. Shelton, IV, Mark S. Zeiner
  • Publication number: 20210196277
    Abstract: A method of applying a buttress to a surgical stapler end effector comprises positioning a buttress assembly between an anvil and a staple cartridge of the end effector. The buttress assembly comprises a buttress body and an adhesive material. The adhesive material faces either an underside of the anvil or a deck of the staple cartridge. The anvil is in an open position relative to the staple cartridge during the act of positioning the buttress assembly between the anvil and the staple cartridge. The method further comprises moving the anvil toward the staple cartridge then moving the anvil back to the open position. The buttress assembly is adhered to the underside of the anvil or the deck of the staple cartridge via the adhesive material with the anvil moved back to the open position. The adhesive material comprises a bioabsorbable polymer.
    Type: Application
    Filed: December 22, 2020
    Publication date: July 1, 2021
    Inventors: Frederick E. Shelton, IV, Rao S. Bezwada, Jason L. Harris, Prudence A. Vulhop, Mark S. Zeiner, Charles J. Scheib
  • Patent number: 11045188
    Abstract: A buttress is applied to an end effector of a surgical stapler. The buttress is loaded on a platform of a buttress applier cartridge. The end effector is closed upon the platform. An adhesive layer of the buttress secures the buttress to the end effector. The buttress is thus adhered to the end effector when the end effector is opened. The end effector is then actuated on tissue of a patient, thereby stapling the buttress to the tissue.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: June 29, 2021
    Assignee: Cilag GmbH International
    Inventors: Michael J. Vendely, Trevor J. Barton, Jason L. Harris, Charles J. Scheib, Emily A. Schellin, Prudence A. Turner, Steven G. Hall, Victoria Dalessandro, Jackie Donners, Mark Timmer, Rao S. Bezwada, Aidan Craigwood, Caroline Hagerman, Ashley Easter, Kathrin Holtzmann, Frederick E. Shelton, IV, Mark S. Zeiner