System and method for assisting with attachment of a stock implant to a patient tissue

  • US 9,877,735 B2
  • Filed: 10/27/2011
  • Issued: 01/30/2018
  • Est. Priority Date: 10/29/2010
  • Status: Active Grant
First Claim
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1. A system including a guide and a stock prosthetic implant, the guide adapted to with attachment of the stock prosthetic implant to a patient tissue, the guide comprising:

  • a lower guide surface configured to contacting an upper implant surface of the stock prosthetic implant when a lower implant surface of the stock prosthetic implant is in contact with the patient tissue, at least a portion of the lower guide surface being contoured to substantially mate with at least a portion of the upper implant surface, andwherein both the lower guide surface and the upper implant surface are concave in profile;

    an upper guide surface spaced longitudinally apart from the lower guide surface by a guide body, the upper guide surface being accessible to a user when the lower guide surface is in contact with the upper implant surface;

    wherein both the upper guide surface and the lower implant surface are convex in profile;

    at least one guiding aperture extending through the guide body between the upper and lower guide surfaces at a predetermined aperture location with respect to the guide body, the at least one guiding aperture defining a predetermined target trajectory through the guide body, and the at least one guiding aperture configured to be being collinear with a corresponding one of a plurality of fastener apertures in the stock prosthetic implant when the lower guide surface is mated with the upper implant surface; and

    two or more locating protrusions integrally formed with the guide body, the two or more locating protrusions extending from the lower guide surface of the guide body toward the upper implant surface for engaging the upper implant surface, the two or more locating protrusions being spaced apart from the at least one guiding aperture, the two or more locating protrusions being configured to nest into preselected ones of the fastener apertures of the stock prosthetic implant, wherein the guide is configured to be engaged engages in a fixed rotational orientation relationship with the stock prosthetic implant when the two or more locating protrusions are nested with the preselected ones of the fastener apertures, and wherein relative rotation between the guide and the stock prosthetic implant is prevented in said fixed rotational orientation relationship;

    wherein at least one of the target trajectory and the aperture location of each guiding aperture is preselected responsive to preoperative imaging of the patient tissue.

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