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Method and device for producing temporary knee joint spacers with stems of various sizes

  • US 10,071,511 B2
  • Filed: 12/12/2013
  • Issued: 09/11/2018
  • Est. Priority Date: 12/12/2012
  • Status: Active Grant
First Claim
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1. A cement mold assembly configured to form a temporary tibial knee implant for use in delivering antibiotics to an infected site, the cement mold assembly comprising:

  • a first mold having a closed end and an inner wall extending from the closed end with the inner wall defining an open end of the first mold;

    a second mold receivable by the inner wall though the open end, and the second mold having a footprint complementary to and slidable along the inner wall;

    cooperatively engaging teeth operating to selectively and progressively index the first mold relative to the second mold while the second mold is being received by the first mold to permit any one of a plurality of tibial platform thicknesses to be selected;

    wherein the first mold cooperates with the second mold to form a cavity defining the temporary tibial knee implant including a stem portion formed by a stem forming cavity and a platform portion formed by a platform tray forming cavity having a selected thickness that corresponds to any one of the plurality of platform thicknesses that is selected.

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