Patents by Inventor Mengli Yang

Mengli Yang 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: 12685531
    Abstract: A surgical staple cartridge and/or a surgical end effector assembly include/includes bumps. The bumps are provided on the surgical staple cartridge and/or a staple anvil portion. The bumps are positioned and sized to limit rotation of the surgical staple cartridge and the staple anvil portion relative to each other in a closed configuration. The bumps define a gap between the surgical staple cartridge and the staple anvil. The gap limits a maximum pressure applied to tissue by the surgical staple cartridge and the staple anvil, and prevents the tissue from being excessively squeezed to flow to area with no staple line coverage or being unevenly squeezed within the area with staple line coverage and thus affecting a tissue sealing quality. A surgical instrument includes the surgical staple cartridge or the surgical end effector assembly.
    Type: Grant
    Filed: April 5, 2023
    Date of Patent: July 21, 2026
    Assignee: Cilag GmbH International
    Inventors: Mengli Yang, Xiangchun Hong, Anil K. Nalagatla
  • Patent number: 12678161
    Abstract: A surgical staple cartridge includes installation poka-yoke features. The surgical staple cartridge is configured to be installed between a pair of closure plates of a surgical instrument. The closure plates are configured to push the surgical staple cartridge towards a staple anvil portion of the surgical instrument to clamp tissue between the surgical staple cartridge and the staple anvil portion. The surgical staple cartridge includes two opposite side walls extending in a longitudinal direction parallel to an installation direction of the surgical staple cartridge. A protrusion and/or a slot are provided on an outer surface of at least one of the side walls. The protrusion as well as the slot are configured to cooperate with corresponding features on the closure plates, so as to prevent an inappropriate installation of the surgical staple cartridge.
    Type: Grant
    Filed: April 5, 2023
    Date of Patent: July 14, 2026
    Assignee: Cilag GmbH International
    Inventors: Sheng Ding, Jie Zhang, Mengli Yang, Junjie Wang
  • Patent number: 12599380
    Abstract: A cartridge body of a staple cartridge includes a tissue contact platform; a plurality of staple cavities; and a retaining pin assembly slidably arranged in an end of the cartridge body proximate to the outside. In the longitudinal direction of the staple cartridge, an outermost edge of an outermost staple cavity in at least one row of the staple cavities is aligned with or extends beyond a longitudinal axis of the pin rod. The A surgical stapler includes an anvil for causing staples in the staple cartridge formed and an anvil side retaining pin receiving hole for receiving a free end of a retaining pin assembly of the staple cartridge. An outermost edge of an outermost staple forming pocket in at least one row of the staple forming pockets is aligned with or extends beyond a center of the retaining pin receiving hole at the anvil side.
    Type: Grant
    Filed: April 5, 2023
    Date of Patent: April 14, 2026
    Assignee: Cilag GmbH International
    Inventors: Mengli Yang, Hong Xiangchun, Junjie Wang, Chunchun Liu, Sheng Ding
  • Publication number: 20250255605
    Abstract: The present disclosure provides a surgical staple cartridge and a surgical end effector assembly with bumps. The bumps are provided on the surgical staple cartridge and/or a staple anvil portion, the bumps are positioned and sized to limit rotation of the surgical staple cartridge and the staple anvil portion relative to each other in a closed configuration, and to define a gap between the surgical staple cartridge and the staple anvil, the gap limits a maximum pressure applied to tissue by the surgical staple cartridge and the staple anvil, and prevents the tissue from being excessively squeezed to flow to area with no staple line coverage or being unevenly squeezed within the area with staple line coverage and thus affecting a tissue sealing quality. The present disclosure also provides a surgical instrument comprising the surgical staple cartridge or the surgical end effector assembly.
    Type: Application
    Filed: April 5, 2023
    Publication date: August 14, 2025
    Inventors: Mengli Yang, Hong Xiangchun, Anil K. Nalagatla
  • Publication number: 20250213250
    Abstract: A surgical staple cartridge includes installation poka-yoke features. The surgical staple cartridge is configured to be installed between a pair of closure plates of a surgical instrument. The closure plates are configured to push the surgical staple cartridge towards a staple anvil portion of the surgical instrument to clamp tissue between the surgical staple cartridge and the staple anvil portion. The surgical staple cartridge includes two opposite side walls extending in a longitudinal direction parallel to an installation direction of the surgical staple cartridge. A protrusion and/or a slot are provided on an outer surface of at least one of the side walls. The protrusion as well as the slot are configured to cooperate with corresponding features on the closure plates, so as to prevent an inappropriate installation of the surgical staple cartridge.
    Type: Application
    Filed: April 5, 2023
    Publication date: July 3, 2025
    Inventors: Sheng Ding, Jie Zhang, Mengli Yang, Junjie Wang
  • Publication number: 20250204912
    Abstract: The present disclosure provides a surgical staple cartridge. The surgical staple cartridge comprises two opposite side walls extending along a longitudinal direction which is perpendicular to a staple driving direction, and at least one side wall is provided with one or more cantilever beams along the longitudinal direction, the cantilever beams extend parallel to the staple driving direction, wherein the cantilever beams are provided with protrusions or grooves which are configured to cooperate with grooves or protrusions formed on a staple driver so as to hold the staple driver in place, and the cantilever beams are configured to deflect outwards to allow the passing through of the staple driver.
    Type: Application
    Filed: April 5, 2023
    Publication date: June 26, 2025
    Inventors: Mengli Yang, Anil K. Nalagatla
  • Publication number: 20250195065
    Abstract: The present disclosure relates to a surgical stapler and a staple cartridge for use with the surgical stapler, where a cartridge body of the staple cartridge includes: a tissue contact platform; a plurality of staple cavities arranged in rows along a longitudinal direction of the staple cartridge; and a retaining pin assembly slidably arranged in an end of the cartridge body proximate to the outside and can extend distally out of a retaining pin hole opened on the tissue contact platform along a longitudinal direction of the surgical stapler when the closure drive mechanism is actuated, wherein a pin rod of the retaining pin assembly having a round cross section; wherein, in the longitudinal direction of the staple cartridge, an outermost edge of an outermost staple cavity in at least one row of the staple cavities is aligned with or extends beyond a longitudinal axis of the pin rod; and wherein the pin rod of the retaining pin assembly is offset relative to a longitudinal centerline of the staple cartridge;
    Type: Application
    Filed: April 5, 2023
    Publication date: June 19, 2025
    Inventors: Mengli Yang, Hong Xiangchun, Junjie Wang, Chunchun Liu, Sheng Ding
  • Patent number: D1029256
    Type: Grant
    Filed: October 6, 2022
    Date of Patent: May 28, 2024
    Assignee: Cilag GmbH International
    Inventors: Mengli Yang, Anil Nalagatla
  • Patent number: D1030056
    Type: Grant
    Filed: October 6, 2022
    Date of Patent: June 4, 2024
    Assignee: Cilag GmbH International
    Inventors: Mengli Yang, Sheng Ding, Junjie Wang
  • Patent number: D1034990
    Type: Grant
    Filed: October 6, 2022
    Date of Patent: July 9, 2024
    Assignee: Cilag GmbH International
    Inventors: Mengli Yang, Anil Nalagatla
  • Patent number: D1034991
    Type: Grant
    Filed: October 6, 2022
    Date of Patent: July 9, 2024
    Assignee: Cilag GmbH International
    Inventor: Mengli Yang
  • Patent number: D1070086
    Type: Grant
    Filed: October 6, 2022
    Date of Patent: April 8, 2025
    Assignee: Cilag GmbH International
    Inventors: Mengli Yang, Xiangchun Hong