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Device and method of spacer and trial design during joint arthroplasty

  • US 9,248,030 B2
  • Filed: 02/21/2014
  • Issued: 02/02/2016
  • Est. Priority Date: 03/29/2006
  • Status: Expired due to Fees
First Claim
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1. A system that gathers information to select a trial insert between a femur and tibia of a knee of a patient, comprising:

  • a first body piece and a second body piece of a spacer, the first body piece being separate from the second body piece, where the first body piece and the second body piece can be assembled together to form the spacer, the first body piece comprising a plurality of poles integrally formed with the first body piece and extending relative to an inside surface of the first body piece;

    a plurality of sensors disposed on each respective pole;

    a processor positioned between the first body piece and the second body piece when the first and the second body pieces are assembled, the processor coupled with the plurality of sensors; and

    a chim removably mountable to an outside surface of the second body piece, the plurality of poles disposed about and aligned with the chim, and where the chim is configured to be mountable to the outside surface of the second body piece through projections on an underside of the chim and corresponding recesses formed in the top surface of the second body piece that align with the plurality of poles.

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