Patent ID: 9095355
Filing Date: 2015-08-04
Classification: A61B

Abstract:
1. A customized patient-specific orthopaedic surgical instrument, comprising: a customized patient-specific femoral pin guide comprising (i) a body having a bone-facing surface that has a customized patient-specific negative contour configured to receive a portion of an anterior side of a patient's femur that has a corresponding positive contour, the body having (a) a first hole formed therein with a first locking slot extending in a direction parallel to the axis of the first hole, the first locking slot opening into the first hole, and (b) a second hole formed therein with a second locking slot extending in a direction parallel to the axis of the second hole, the second locking slot opening into the second hole, (ii) a first tab extending posteriorly from the body, the first tab having a bone-facing surface that has a customized patient-specific negative contour configured to receive a first portion of the distal side of the patient's femur that has a corresponding positive contour, the first tab having a third hole formed therein with a third locking slot extending in a direction parallel to the axis of the third hole, the third locking slot opening into the third hole, and (iii) a second tab extending posteriorly from the body, the second tab having a bone-facing surface that has a customized patient-specific negative contour configured to receive a second portion of the distal side of the patient's femur that has a corresponding positive contour, the second tab having a fourth hole formed therein with a fourth locking slot extending in a direction parallel to the axis of the fourth hole, the fourth locking slot opening into the fourth hole, a first removable drill bushing having a post with a locking flange extending therefrom, the post of the first removable drill bushing being positioned in the first hole the customized patient-specific femoral pin guide such that the locking flange of the first removable drill bushing is positioned in the first locking slot of the customized patient-specific femoral pin guide, a second removable drill bushing having a post with a locking flange extending therefrom, the post of the second removable drill bushing being positioned in the second hole of the customized patient-specific femoral pin guide such that the locking flange of the second removable drill bushing is positioned in the second locking slot of the customized patient-specific femoral pin guide, a third removable drill bushing having a post with a locking flange extending therefrom, the post of the third removable drill bushing being positioned in the third hole of the customized patient-specific femoral pin guide such that the locking flange of the first removable drill bushing is positioned in the first locking slot of the customized patient-specific femoral pin guide, and a fourth removable drill bushing having a post with a locking flange extending therefrom, the post of the fourth removable drill bushing being positioned in the fourth hole of the customized patient-specific femoral pin guide such that the locking flange of the fourth removable drill bushing is positioned in the fourth locking slot of the customized patient-specific femoral pin guide.