Patents by Inventor Sambit Kumar Acharya

Sambit Kumar Acharya 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).

  • Anvil for circular surgical stapler and associated method of manufacture with MIM
    Patent number: 11291450
    Abstract: A method is used to manufacture an anvil of a surgical circular stapler. The anvil includes a head and a shank extending proximally from the head. The method includes forming the head of a surgical circular stapler using a metal injection molding process. The method also includes forming an annular array of staple forming pockets in the head. The method also includes machining the shank of the surgical circular stapler. The method also includes coupling together the head and the shank of the surgical circular stapler that were separately manufactured.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: April 5, 2022
    Assignee: Cilag GmbH International
    Inventors: Anil K. Nalagatla, Frederick E. Shelton, IV, Chester O. Baxter, III, Amit Gupta, Sambit Kumar Acharya
  • Frame for surgical stapler and associated method of manufacture with stamping
    Patent number: 11259804
    Abstract: A method is used to manufacture a frame of a curved surgical stapler. The method includes manufacturing a first portion of the frame of the curved surgical stapler separate from the first portion. The first portion includes a first curvilinear portion of an end effector and a first alignment feature. The method also includes manufacturing a second portion of the frame of the curved surgical stapler. The second portion includes a second alignment feature. The method also includes manufacturing a third portion of the frame of the curved surgical stapler separate from either of the first or second portions. The third portion includes a C-shaped track. The method also includes aligning the first and second portions portion with the second portion by aligning the first and second alignment features. The method also includes coupling the first and second portions of the frame of the curved surgical stapler together.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: March 1, 2022
    Assignee: Cilag GmbH International
    Inventors: Anil K. Nalagatla, Frederick E. Shelton, IV, Chester O. Baxter, III, Sohom Bairagi, Yogesh Deshpande, Sambit Kumar Acharya, Chinmaya Ranjan Dash
  • FRAME FOR SURGICAL STAPLER AND ASSOCIATED METHOD OF MANUFACTURE WITH STAMPING
    Publication number: 20220039796
    Abstract: A method is used to manufacture a frame of a curved surgical stapler. The method includes manufacturing a first portion of the frame of the curved surgical stapler separate from the first portion. The first portion includes a first curvilinear portion of an end effector and a first alignment feature. The method also includes manufacturing a second portion of the frame of the curved surgical stapler. The second portion includes a second alignment feature. The method also includes manufacturing a third portion of the frame of the curved surgical stapler separate from either of the first or second portions. The third portion includes a C-shaped track. The method also includes aligning the first and second portions portion with the second portion by aligning the first and second alignment features. The method also includes coupling the first and second portions of the frame of the curved surgical stapler together.
    Type: Application
    Filed: August 27, 2021
    Publication date: February 10, 2022
    Inventors: Anil K. Nalagatla, Frederick E. Shelton, IV, Chester O. Baxter, III, Sohom Bairagi, Yogesh Deshpande, Sambit Kumar Acharya, Chinmaya Ranjan Dash
  • ANVIL FOR CIRCULAR SURGICAL STAPLER AND ASSOCIATED METHOD OF MANUFACTURE WITH MIM
    Publication number: 20210196278
    Abstract: A method is used to manufacture an anvil of a surgical circular stapler. The anvil includes a head and a shank extending proximally from the head. The method includes forming the head of a surgical circular stapler using a metal injection molding process. The method also includes forming an annular array of staple forming pockets in the head. The method also includes machining the shank of the surgical circular stapler. The method also includes coupling together the head and the shank of the surgical circular stapler that were separately manufactured.
    Type: Application
    Filed: January 22, 2021
    Publication date: July 1, 2021
    Inventors: Anil K. Nalagatla, Frederick E. Shelton, IV, Chester O. Baxter, III, Amit Gupta, Sambit Kumar Acharya
  • Frame for Surgical Stapler and Associated Method of Manufacture with Stamping
    Publication number: 20200205815
    Abstract: A method is used to manufacture a frame of a curved surgical stapler. The method includes manufacturing a first portion of the frame of the curved surgical stapler separate from the first portion. The first portion includes a first curvilinear portion of an end effector and a first alignment feature. The method also includes manufacturing a second portion of the frame of the curved surgical stapler. The second portion includes a second alignment feature. The method also includes manufacturing a third portion of the frame of the curved surgical stapler separate from either of the first or second portions. The third portion includes a C-shaped track. The method also includes aligning the first and second portions portion with the second portion by aligning the first and second alignment features. The method also includes coupling the first and second portions of the frame of the curved surgical stapler together.
    Type: Application
    Filed: December 31, 2018
    Publication date: July 2, 2020
    Inventors: Anil K. Nalagatla, Frederick E. Shelton, IV, Chester O. Baxter, III, Sohom Bairagi, Yogesh Deshpande, Sambit Kumar Acharya, Chinmaya Ranjan Dash
  • Anvil for Circular Surgical Stapler and Associated Method of Manufacture with MIM
    Publication number: 20200205835
    Abstract: A method is used to manufacture an anvil of a surgical circular stapler. The anvil includes a head and a shank extending proximally from the head. The method includes forming the head of a surgical circular stapler using a metal injection molding process. The method also includes forming an annular array of staple forming pockets in the head. The method also includes machining the shank of the surgical circular stapler. The method also includes coupling together the head and the shank of the surgical circular stapler that were separately manufactured.
    Type: Application
    Filed: December 31, 2018
    Publication date: July 2, 2020
    Inventors: Anil K. Nalagatla, Frederick E. Shelton, IV, Chester O. Baxter, III, Amit Gupta, Sambit Kumar Acharya