Patents by Inventor Roanit A. Fernandes

Roanit A. Fernandes 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).

  • Publication number: 20220117600
    Abstract: An anvil buttress loading system includes an anvil assembly, an anvil buttress loading tool, and an anvil buttress. The anvil buttress is retainable on each of the anvil buttress loading tool and the anvil buttress, and is transferrable from the anvil buttress loading tool to the anvil assembly.
    Type: Application
    Filed: October 19, 2020
    Publication date: April 21, 2022
    Inventors: Pawel Abramek, Kenneth M. Cappola, Matthew J. Chowaniec, Roanit Fernandes
  • Publication number: 20220104816
    Abstract: A surgical stapling device includes a body portion that defines a longitudinal axis and a tool assembly that articulates about an axis transverse to the longitudinal axis. An articulation link assembly is supported in the body portion and is movable between retracted and advanced positions to pivot the tool assembly between a non-articulated position and articulated positions. The articulation assembly supports an articulation lock assembly that is movable from a locked position to an unlocked position in response to longitudinal movement of the articulation assembly to facilitate articulation of the tool assembly. The articulation lock assembly stabilize the articulation link assembly within the body portion when the surgical stapling device is fired to minimize occurrence of tremors in the tool assembly.
    Type: Application
    Filed: October 6, 2020
    Publication date: April 7, 2022
    Inventors: Roanit A. Fernandes, K V S Manoj Kumar Vadali
  • Patent number: 11272937
    Abstract: An end effector for use with a surgical stapler includes a staple cartridge assembly movable relative to an anvil assembly. The staple cartridge assembly defines a plurality of retention slots and a cavity. The staple cartridge assembly includes a plurality of staples, a plurality of pushers, an actuation sled, a surgical buttress material, a suture, and an anchoring button. The actuation sled is configured for movement along a length of the staple cartridge assembly to sequentially engage the plurality of pushers to eject the plurality of staples through the respective plurality of retention slots. The anchoring button is configured to be received in the cavity of the staple cartridge assembly such that a portion of the suture is supported in the cavity to be severed by a knife blade of the actuation sled when the actuation sled is advanced distally.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: March 15, 2022
    Assignee: Covidien LP
    Inventors: Roanit Fernandes, Suresh Kumar Prema Mohanasundaram, Jitendra Bhargava Srinivas, Matthew J. Chowaniec
  • Publication number: 20220071628
    Abstract: A surgical stapling device includes a tool assembly having an anvil, a cartridge assembly movable in relation to the anvil between open and clamped positions, a drive member, and a biasing mechanism or member. The biasing mechanism or member is configured to urge the cartridge assembly in relation to the anvil assembly to its fully open position to provide access to tissue during a surgical procedure.
    Type: Application
    Filed: November 17, 2021
    Publication date: March 10, 2022
    Inventors: Rajanikanth Mandula, Roanit Fernandes
  • Publication number: 20220061838
    Abstract: A tool assembly includes a cartridge assembly or a heating assembly along with an anvil assembly, and a drive assembly. The drive assembly includes a working member and a laser probe that is pivotally supported on the working member and emits a laser beam. The laser probe is positioned between the cartridge and anvil assemblies such that the laser beam extends across a tissue gap of the tool assembly when the tool assembly is in the clamped position.
    Type: Application
    Filed: June 30, 2021
    Publication date: March 3, 2022
    Inventors: AVVLN Srinivasa Murthy Aravalli, Jitendra Bhargava Srinivas, Suresh Kumar Prema Mohanasundaram, Roanit A. Fernandes, N V Siva Raju Sabbineni
  • Publication number: 20220039795
    Abstract: A surgical stapling device includes a body portion that defines a longitudinal axis and a tool assembly that articulates about an axis transverse to the longitudinal axis. The surgical stapling device includes an articulation member that is supported in the body portion and is movable between retracted and advanced positions to pivot the tool assembly between a non-articulated position and articulated positions. The body portion supports a braking assembly that moves into engagement with the articulation member to stabilize the articulation member when the surgical stapling device is fired.
    Type: Application
    Filed: August 7, 2020
    Publication date: February 10, 2022
    Inventors: Roanit Fernandes, Lavanya Krishna Kumar
  • Publication number: 20210401429
    Abstract: A tool assembly for a surgical stapling device includes a first jaw supporting an anvil. A second jaw supports a staple cartridge. A drive member is movable from a retracted position towards an advanced position to move the second jaw in relation to the first jaw from an open position to a clamped position. At least two first pivoting links are operably coupled to a first side of the first and second jaws. At least two second pivoting links are operably coupled to a second side of the first and second jaws. The pivoting links each pivot in response to longitudinal advancement of the I-beam to move the second jaw between the open position and the clamped position. The second surface of the cartridge assembly is maintained in substantially parallel alignment with the first surface of the anvil as the second jaw is moved between the open position and the clamped position.
    Type: Application
    Filed: June 25, 2020
    Publication date: December 30, 2021
    Inventors: K V S Manoj Kumar Vadali, Roanit A. Fernandes
  • Publication number: 20210386424
    Abstract: A surgical stapling apparatus includes a housing assembly and an elongated shaft assembly. The elongated shaft assembly is selectively attachable to the housing assembly. The elongated shaft assembly includes an adapter assembly and a loading unit. The adapter assembly extends distally to a distal tip housing. The distal tip housing supports an adapter electrical connector assembly therein. The loading unit is selectively attachable to the adapter assembly and extends distally to an end effector supporting one or more sensors therein. The loading unit supports a loading unit electrical connector assembly therein. The loading unit electrical connector assembly is positioned to contact the adapter electrical connector assembly when the adapter assembly and the loading unit are coupled together to electrically couple the one or more sensors to the housing assembly.
    Type: Application
    Filed: May 17, 2021
    Publication date: December 16, 2021
    Inventors: Pawel Abramek, Kenneth H. Whitfield, Roanit A. Fernandes, Kenneth M. Cappola
  • Publication number: 20210378666
    Abstract: A surgical stapling device includes a tool assembly having an anvil, a cartridge assembly movable in relation to the anvil between open and clamped positions, a drive member, and a biasing mechanism or member. The biasing mechanism or member is configured to urge the cartridge assembly in relation to the anvil assembly to its fully open position to provide access to tissue during a surgical procedure.
    Type: Application
    Filed: June 8, 2020
    Publication date: December 9, 2021
    Inventors: Rajanikanth Mandula, Roanit Fernandes
  • Patent number: 11191538
    Abstract: A surgical stapling device includes a tool assembly having an anvil, a cartridge assembly movable in relation to the anvil between open and clamped positions, a drive member, and a biasing mechanism or member. The biasing mechanism or member is configured to urge the cartridge assembly in relation to the anvil assembly to its fully open position to provide access to tissue during a surgical procedure.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: December 7, 2021
    Assignee: Covidien LP
    Inventors: Rajanikanth Mandula, Roanit Fernandes
  • Publication number: 20210353290
    Abstract: A surgical stapler is described herein which includes a drive assembly. The drive assembly includes: a rotatable drive member defining a transverse axis; a linkage operably coupled to the rotatable drive member defining a longitudinal axis; and an I-beam operably coupled to the linkage, configured to be advanced along the longitudinal axis in response to a rotational motion of the rotatable drive member.
    Type: Application
    Filed: May 3, 2021
    Publication date: November 18, 2021
    Inventors: Roanit A. Fernandes, Varad V. Chavan
  • Publication number: 20210290227
    Abstract: A loading unit includes a staple cartridge assembly, an anvil assembly, and an anvil buttress. The anvil assembly includes an anvil plate including a tissue facing surface having apertures defined therethrough and an anvil cover disposed over an outwardly facing surface of the anvil plate. The anvil buttress includes a body portion positioned against the tissue facing surface of the anvil plate and arms extending into the apertures of the anvil plate. The arms releasably secure the anvil buttress to the anvil plate.
    Type: Application
    Filed: February 17, 2021
    Publication date: September 23, 2021
    Inventors: Rajanikanth Mandula, Ravi Sekhar Gutti, Roanit Fernandes
  • Publication number: 20210290230
    Abstract: A loading unit includes a staple cartridge assembly, an anvil assembly, and an anvil hook assembly. The anvil assembly has an opening defined therethrough, and the anvil hook assembly includes an anvil hook disposed within the opening of the anvil assembly and a pivot pin extending through the anvil hook and the anvil assembly. The anvil hook is pivotable with respect to the anvil assembly about the pivot pin between a loading position and a loaded position. The loading unit may further include a surgical buttress assembly including a cartridge buttress releasably attached to the staple cartridge assembly, an anvil buttress releasably attachable to the anvil assembly by the anvil hook, and a connecting member interconnecting the cartridge and anvil buttresses.
    Type: Application
    Filed: February 17, 2021
    Publication date: September 23, 2021
    Inventors: Roanit Fernandes, Kenneth H. Whitfield
  • Publication number: 20210282770
    Abstract: A surgical stapling device is provided which includes a first jaw supporting an anvil assembly and a second jaw supporting a cartridge assembly. The cartridge assembly supports a firing lockout assembly which includes a latch member having a blocking portion. The latch member is movable between a first position and a second position. In the first position, the blocking portion of the latch member is aligned with the stop surface of the drive member to prevent advancement of the drive assembly beyond an initial advanced position within the tool assembly and in the second position, the blocking member is misaligned with the stop surface of the drive member to permit subsequent advancement of the drive assembly within the tool assembly. In the retracted position of the drive assembly subsequent to firing of the surgical stapling device, the latch member is in the first position.
    Type: Application
    Filed: March 10, 2020
    Publication date: September 16, 2021
    Inventors: Roanit Fernandes, Jitendra Bhargava Srinivas
  • Publication number: 20210236119
    Abstract: A surgical stapling device includes a tool assembly having an anvil assembly, a cartridge assembly, and a lockout member supported on the anvil assembly. The lockout member is supported on the tool assembly to prevent firing of the stapling device when an actuation sled is not present in the cartridge assembly.
    Type: Application
    Filed: November 17, 2020
    Publication date: August 5, 2021
    Inventors: Varad V. Chavan, Roanit A. Fernandes
  • Publication number: 20210219977
    Abstract: An end effector for use with a surgical stapler includes a staple cartridge assembly movable relative to an anvil assembly. The staple cartridge assembly defines a plurality of retention slots and a cavity. The staple cartridge assembly includes a plurality of staples, a plurality of pushers, an actuation sled, a surgical buttress material, a suture, and an anchoring button. The actuation sled is configured for movement along a length of the staple cartridge assembly to sequentially engage the plurality of pushers to eject the plurality of staples through the respective plurality of retention slots. The anchoring button is configured to be received in the cavity of the staple cartridge assembly such that a portion of the suture is supported in the cavity to be severed by a knife blade of the actuation sled when the actuation sled is advanced distally.
    Type: Application
    Filed: January 22, 2020
    Publication date: July 22, 2021
    Inventors: Roanit Fernandes, Suresh Kumar Prema Mohanasundaram, Jitendra Bhargava Srinivas, Matthew J. Chowaniec
  • Publication number: 20210153867
    Abstract: A cartridge assembly of a surgical stapling instrument includes a housing having an arcuate configuration, a knife disposed within the housing, and a staple actuator configured to eject staples. A longitudinally-extending cutting edge of the knife is configured to advance through tissue after the staple actuator ejects all of the staples from the cartridge assembly.
    Type: Application
    Filed: November 21, 2019
    Publication date: May 27, 2021
    Inventors: Roanit A. FERNANDES, Mohan T. CHIRUVOLU, Jitendra Bhargava SRINIVAS
  • Publication number: 20210106331
    Abstract: A tool assembly includes an anvil and a cartridge assembly pivotally coupled to one another. A locking member is rotatably supported on a distal portion of the cartridge assembly and positioned for receipt in a bore defined in a distal portion of the anvil. The locking member is operably coupled to a sled for advancing staples from the cartridge assembly. Advancement of the sled rotates the locking member relative to the bore to approximate the distal portions of the anvil and cartridge assembly.
    Type: Application
    Filed: July 31, 2020
    Publication date: April 15, 2021
    Inventors: Roanit FERNANDES, Jeevan Shankar Setty MADDUR
  • Publication number: 20210007738
    Abstract: A loading unit for use with a surgical instrument includes a body configured for coupling to a surgical instrument and defining a longitudinal axis and having proximal and distal ends, and an end effector coupled to the distal end of the body. The end effector includes a staple cartridge assembly having a staple cartridge and an anvil assembly having an anvil plate. A drive assembly is at least partially disposed within the body. The drive assembly includes an actuator member having a roller engageable with at least one of the staple cartridge assembly or the anvil assembly. The roller is configured to rotate upon longitudinal movement of the drive assembly to facilitate movement of the drive assembly and relative movement of the staple cartridge assembly and the anvil assembly between open and approximated conditions.
    Type: Application
    Filed: September 30, 2020
    Publication date: January 14, 2021
    Inventors: Jitendra Bhargava Srinivas, Roanit Fernandes
  • Patent number: 10806452
    Abstract: A loading unit for use with a surgical instrument includes a body configured for coupling to a surgical instrument and defining a longitudinal axis and having proximal and distal ends, and an end effector coupled to the distal end of the body. The end effector includes a staple cartridge assembly having a staple cartridge and an anvil assembly having an anvil plate. A drive assembly is at least partially disposed within the body. The drive assembly includes an actuator member having a roller engageable with at least one of the staple cartridge assembly or the anvil assembly. The roller is configured to rotate upon longitudinal movement of the drive assembly to facilitate movement of the drive assembly and relative movement of the staple cartridge assembly and the anvil assembly between open and approximated conditions.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: October 20, 2020
    Assignee: Covidien LP
    Inventors: Jitendra Bhargava Srinivas, Roanit Fernandes