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Patient-specific computed tomography guides

  • US 9,579,112 B2
  • Filed: 06/29/2015
  • Issued: 02/28/2017
  • Est. Priority Date: 03/04/2010
  • Status: Active Grant
First Claim
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1. A patient-specific tibial pin guide for placement on a tibia during a joint arthroplasty procedure on a patient, comprising:

  • a patient-specific inner surface having a first offset portion and a second offset portion, wherein the first offset portion is configured to be offset from and mimic a first bone surface, wherein the first offset portion of the patient-specific inner surface is shaped to form a gap to accommodate soft tissue overlying a proximal surface of the tibia of the patient, and wherein the second offset portion of the patient-specific inner surface is shaped to provide clearance for a patella tendon of the patient;

    a first patient-specific contact area formed on the patient-specific inner surface, wherein the first patient-specific contact area is configured for direct bone registration without intervening soft tissue;

    a second patient-specific contact area formed on the patient-specific inner surface, wherein the second patient-specific contact area is configured for direct bone registration without intervening soft tissue, wherein the second patient-specific contact area is non-contiguous with the first patient-specific contact area.

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