Patents by Inventor Andrew C. Yoo

Andrew C. Yoo 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: 9597082
    Abstract: A cuff is used to provide a form for curing fluid about the exterior of an end-to-end anastomosis site. The cuff includes a port through which fluid may be injected to reach an interior space defined between the exterior of tissue at the anastomosis site and the inner surface of the cuff. A circular stapler may be used as a mandrel for the cuff and fluid. Alternatively, inflatable balloons may be used as a mandrel. The curing fluid may comprise a mixture of fibrin and thrombin.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 21, 2017
    Assignee: Ethicon Endo-Surgery, LLC
    Inventors: Michael J. Stokes, Edward G. Chekan, Charles J. Scheib, Andrew C. Yoo
  • Patent number: 9445808
    Abstract: An apparatus is provided for operating on tissue. The apparatus includes an end effector having an upper jaw and lower jaw. The upper and lower jaws each include an electrode surface. The apparatus also includes a tissue tacking cartridge coupled to one of either the upper jaw or the lower jaw. The tissue tacking cartridge includes at least one fastener positioned outside of the electrode surfaces. The fastener is operable to be deployed from the tissue tacking cartridge. A tack loading cartridge may also be operable to load the end effector with at least one fastener.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: September 20, 2016
    Assignee: Ethicon Endo-Surgery, LLC
    Inventors: James A. Woodard, Jr., Kreena B. Modi, Gary W. Knight, Andrew C. Yoo, Taylor W. Aronhalt, Joseph E. Young, Chester O. Baxter, III, Frederick E. Shelton, IV
  • Patent number: 9320518
    Abstract: A staple cartridge assembly for use with a surgical stapler. The assembly has a cartridge body having a support portion with a plurality of staple cavities with openings. There is also a plurality of staples, wherein at least a portion of each the staple is removably stored within a the staple cavity. Each the staple is movable between an unfired position and a fired position, and is deformable between an unfired configuration and a fired configuration. The assembly also includes a compressible tissue thickness compensator configured to be captured within the staples. The compressible tissue thickness compensator at least partially covers the staple cavity openings. The compressed tissue thickness compensator is configured to assume different compressed heights within different the staples. The compressible tissue thickness compensator comprising a lyophilized foam having an oxygen generating agent embedded therein.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: April 26, 2016
    Assignee: Ethicon Endo-Surgery, LLC
    Inventors: Cortney E. Henderson, Taylor W. Aronhalt, Chunlin Yang, Charles J. Scheib, Venkataramanan Mandakolathur Vasudevan, Andrew C. Yoo, Frederick E. Shelton, IV
  • Patent number: 9314246
    Abstract: A staple cartridge assembly for use with a surgical stapler. The assembly has a cartridge body having a support portion with a plurality of staple cavities with openings. There is also a plurality of staples, wherein at least a portion of each the staple is removably stored within a the staple cavity. Each the staple is movable between an unfired position and a fired position, and is deformable between an unfired configuration and a fired configuration. The assembly also includes a compressible tissue thickness compensator configured to be captured within the staples. The compressible tissue thickness compensator at least partially covers the staple cavity openings. The compressed tissue thickness compensator is configured to assume different compressed heights within different the staples. The compressible tissue thickness compensator comprising a lyophilized foam having a anti-inflammatory agent embedded therein.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: April 19, 2016
    Assignee: Ethicon Endo-Surgery, LLC
    Inventors: Frederick E. Shelton, IV, Tamara S. Vetro-Widenhouse, Andrew C. Yoo
  • Patent number: 9113861
    Abstract: A needle holder includes a shaft and a needle driver located at the distal end of the shaft. The needle driver is operable to rotate a needle such that the needle forms a non-perpendicular angle with a longitudinal axis of the shaft. In some versions, the needle driver includes a first arm and a rotatable assembly that is configured to longitudinally clamp about a portion of a needle. The rotatable assembly may include self-righting features to right the needle perpendicular to the first arm. The needle driver may further include a second arm that is pivotable relative to the first arm. The rotatable assembly may include a top member associated with the second arm and a bottom member associated with the first arm. In some versions, spring-loaded collets may secure the needle to a rotatable assembly. Alternatively, a pair of actuating arms may pivot the needle about a curved surface.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: August 25, 2015
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: David T. Martin, James A. Woodard, Jr., Carl J. Shurtleff, Andrew C. Yoo
  • Publication number: 20140263563
    Abstract: A cuff is used to provide a form for curing fluid about the exterior of an end-to-end anastomosis site. The cuff includes a port through which fluid may be injected to reach an interior space defined between the exterior of tissue at the anastomosis site and the inner surface of the cuff. A circular stapler may be used as a mandrel for the cuff and fluid. Alternatively, inflatable balloons may be used as a mandrel. The curing fluid may comprise a mixture of fibrin and thrombin.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Inventors: Michael J. Stokes, Edward G. Chekan, Charles J. Scheib, Andrew C. Yoo
  • Publication number: 20140158741
    Abstract: An apparatus is provided for operating on tissue. The apparatus includes an end effector having an upper jaw and lower jaw. The upper and lower jaws each include an electrode surface. The apparatus also includes a tissue tacking cartridge coupled to one of either the upper jaw or the lower jaw. The tissue tacking cartridge includes at least one fastener positioned outside of the electrode surfaces. The fastener is operable to be deployed from the tissue tacking cartridge. A tack loading cartridge may also be operable to load the end effector with at least one fastener.
    Type: Application
    Filed: December 11, 2012
    Publication date: June 12, 2014
    Applicant: ETHICON ENDO-SURGERY, INC.
    Inventors: James A. Woodard, Jr., Kreena R. Modi, Gary W. Knight, Andrew C. Yoo, Taylor W. Aronhalt, Joseph E. Young, Chester O. Baxter, III, Frederick E. Shelton, IV
  • Publication number: 20120318844
    Abstract: A staple cartridge assembly for use with a surgical stapler. The assembly has a cartridge body having a support portion with a plurality of staple cavities with openings. There is also a plurality of staples, wherein at least a portion of each the staple is removably stored within a the staple cavity. Each the staple is movable between an unfired position and a fired position, and is deformable between an unfired configuration and a fired configuration. The assembly also includes a compressible tissue thickness compensator configured to be captured within the staples. The compressible tissue thickness compensator at least partially covers the staple cavity openings. The compressed tissue thickness compensator is configured to assume different compressed heights within different the staples. The compressible tissue thickness compensator comprising a lyophilized foam having a anti-inflammatory agent embedded therein.
    Type: Application
    Filed: June 25, 2012
    Publication date: December 20, 2012
    Inventors: Frederick E. Shelton, IV, Tamara S. Vetro-Widenhouse, Andrew C. Yoo
  • Publication number: 20120318843
    Abstract: A staple cartridge assembly for use with a surgical stapler. The assembly has a cartridge body having a support portion with a plurality of staple cavities with openings. There is also a plurality of staples, wherein at least a portion of each the staple is removably stored within a the staple cavity. Each the staple is movable between an unfired position and a fired position, and is deformable between an unfired configuration and a fired configuration. The assembly also includes a compressible tissue thickness compensator configured to be captured within the staples. The compressible tissue thickness compensator at least partially covers the staple cavity openings. The compressed tissue thickness compensator is configured to assume different compressed heights within different the staples. The compressible tissue thickness compensator comprising a lyophilized foam having an oxygen generating agent embedded therein.
    Type: Application
    Filed: June 25, 2012
    Publication date: December 20, 2012
    Inventors: CORTNEY E. HENDERSON, Taylor W. Aronhalt, Chunlin Yang, Charles J. Scheib, Venkataramanan Mandakolathur Vasudevan, Andrew C. Yoo, Frederick E. Shelton, IV
  • Publication number: 20120289975
    Abstract: A needle holder includes a shaft and a needle driver located at the distal end of the shaft. The needle driver is operable to rotate a needle such that the needle forms a non-perpendicular angle with a longitudinal axis of the shaft. In some versions, the needle driver includes a first arm and a rotatable assembly that is configured to longitudinally clamp about a portion of a needle. The rotatable assembly may include self-righting features to right the needle perpendicular to the first arm. The needle driver may further include a second arm that is pivotable relative to the first arm. The rotatable assembly may include a top member associated with the second arm and a bottom member associated with the first arm. In some versions, spring-loaded collets may secure the needle to a rotatable assembly. Alternatively, a pair of actuating arms may pivot the needle about a curved surface.
    Type: Application
    Filed: May 8, 2012
    Publication date: November 15, 2012
    Inventors: David T. Martin, James A. Woodard, JR., Carl J. Shurtleff, Andrew C. Yoo