Glenoid implant surgery using patient specific instrumentation

  • US 10,543,100 B2
  • Filed: 03/28/2013
  • Issued: 01/28/2020
  • Est. Priority Date: 03/28/2012
  • Status: Active Grant
First Claim
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1. A pin placement instrument for placing at least one pin in a scapula comprising:

  • an anatomical interface with a hook-like portion being opened laterally relative to the instrument to receive a bone therein in a predetermined position, the hook-like portion having a first surface modeled specifically to match an upper surface of the scapula of a patient, and a second surface modeled specifically to match an under surface of the scapula opposite the upper surface in a longitudinal direction of drilling whereby the hook-like portion is configured to hook onto both sides of a portion of the scapula;

    a drill guide connected to the anatomical interface and defining at least one guide slot in the instrument and configured to be positioned on the upper surface of the scapula, the at least one guide slot having a lateral opening over its full length in the drill guide to allow lateral withdrawal of the instrument in a lateral direction from hooking engagement with the scapula when the at least one pin is placed in the scapula and is passing through the lateral opening; and

    at least one bushing removably placed in said at least one guide slot, the at least one bushing defining a throughbore aligned with the at least one guide slot and adapted to receive the at least one pin extending longitudinally in the instrument when the at least one bushing is in the at least one guide slot for pin placement, the at least one bushing having an axis of the throughbore defining the longitudinal direction of drilling.

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