Patents by Inventor Keith M. McGrath

Keith M. McGrath 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: 9113954
    Abstract: Surgical instruments for use in mapping tissue defects include telescoping rulers and tubes. One of the instruments has a pointed anchoring tip for piercing tissue near the site of the defect. Another instrument has a hook for catching an anatomical landmark. Measuring portions of the rulers of both instruments include distance indicia so that a coordinate system can be established for mapping the location of the defect or of an implant at the defect site. The coordinate system can be re-established at a later time using the same fixation point for the anchoring tip and the same landmark for the hook to evaluate the clinical effects of the treatment selected. The method of using the instrument set is also described.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: August 25, 2015
    Inventors: Anthony D. Zannis, Herbert E. Schwartz, Prasanna Malaviya, Keith M. McGrath, Danny E. McAdams, Andrew M. Jacobs, Jack Farr, II, Randall L. Holcomb
  • Patent number: 8574238
    Abstract: A cannula has a flange and a body with slots extending through the entire flange and into the body. The cannula may also have a longitudinal slot extending its entire length. An obturator used with the cannula may also have a longitudinal slot extending along its length. A surgical method using these instruments includes separating lengths of suture and managing the suture by placing lengths of suture in the slots in the cannula. The cannula and obturator may be used after suture is already in place by placing the suture in the longitudinal slots and then introducing the cannula and obturator to the tissue defect site. The cannula may also be used to deliver a therapeutic implant to the tissue defect site. The instruments and method may be used in mensical surgery.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: November 5, 2013
    Assignee: DePuy Mitek, LLC
    Inventors: Anthony D. Zannis, Prasanna Malaviya, Keith M. McGrath, Herbert E. Schwartz
  • Publication number: 20120191015
    Abstract: Surgical instruments for use in mapping tissue defects include telescoping rulers and tubes. One of the instruments has a pointed anchoring tip for piercing tissue near the site of the defect. Another instrument has a hook for catching an anatomical landmark. Measuring portions of the rulers of both instruments include distance indicia so that a coordinate system can be established for mapping the location of the defect or of an implant at the defect site. The coordinate system can be re-established at a later time using the same fixation point for the anchoring tip and the same landmark for the hook to evaluate the clinical effects of the treatment selected. The method of using the instrument set is also described.
    Type: Application
    Filed: March 23, 2012
    Publication date: July 26, 2012
    Applicant: DEPUY PRODUCTS, INC.
    Inventors: Anthony D. Zannis, Herbert E. Schwartz, Prasanna Malaviya, Keith M. McGrath, Danny E. McAdams, Andrew M. Jacobs, Jack Farr, II, Randall L. Holcomb
  • Patent number: 7785332
    Abstract: A cannula has a flange and a body with slots extending through the entire flange and into the body. The cannula may also have a longitudinal slot extending its entire length. An obturator used with the cannula may also have a longitudinal slot extending along its length. A surgical method using these instruments includes separating lengths of suture and managing the suture by placing lengths of suture in the slots in the cannula. The cannula and obturator may be used after suture is already in place by placing the suture in the longitudinal slots and then introducing the cannula and obturator to the tissue defect site. The cannula may also be used to deliver a therapeutic implant to the tissue defect site. The instruments and method may be used in mensical surgery.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: August 31, 2010
    Assignee: Depuy Products, Inc.
    Inventors: Anthony D. Zannis, Prasanna Malaviya, Keith M. McGrath, Herbert E. Schwartz
  • Publication number: 20080065120
    Abstract: A surgical kit includes an applicator instrument and a needle assembly. The needle assembly provides two spaced pathways and carries a surgical fastener. One anchor of the surgical fastener is carried by one of the pathways and another anchor of the fastener is carried by the other pathway. A filament connects the two anchors of the fasteners and extends between the pathways. The applicator allows for simultaneous insertion of both anchors of the fastener at spaced locations with the filament extending from both anchors in the tissue and over the surface of the tissue or of a therapeutic implant fixated to the tissue. The needle assemblies may be removed from the applicator. The kit may include several needle assemblies that may be attached to the applicator in series to create a plurality of mattress-type stitches.
    Type: Application
    Filed: October 30, 2006
    Publication date: March 13, 2008
    Inventors: Anthony D. Zannis, Andrew M. Jacobs, Jerry L. Flax, Eric D. Nygaard, Tyler J. Haskins, Keith M. McGrath, Greg M. Penland