Patient-specific acetabular alignment guides

  • US 9,913,734 B2
  • Filed: 09/16/2016
  • Issued: 03/13/2018
  • Est. Priority Date: 02/27/2006
  • Status: Active Grant
First Claim
Patent Images

1. An acetabular device comprising:

  • a patient-specific acetabular alignment guide including;

    a bone engagement surface having first and second portions, the first portion configured and shaped to be conforming and complementary to an acetabular rim surface of a specific patient and the second portion configured and shaped to be conforming and complementary to a periacetabular area of an acetabulum of the specific patient in accordance with a three-dimensional periacetabular area of a three-dimensional model of the acetabulum of the specific patient reconstructed pre-operatively from an image scan of the patient, wherein the first portion completely extends around the entire inner rim surface to define an opening such that the entire acetabulum is accessible through the first portion, and the second portion completely extends around the entire periacetabular area; and

    a plurality of guiding formations extending through the second portion for guiding a plurality of alignment pins therethrough, wherein the plurality of guiding formations are arranged and configured relative to the periacetabular area based on a pre-operative plan for the patient; and

    a patient-specific alignment adapter couplable to an acetabular instrument, the patient-specific alignment adapter having a plurality of openings located at patient-specific locations, each of the plurality of openings configured to align with a respective one of the plurality of guiding formations;

    wherein the patient-specific alignment adapter comprises first and second arms, each of the first and second arms including at least one of the plurality of openings; and

    wherein the first arm and the second arm are parallel to each other.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×