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Drug delivery implants

  • US 9,616,205 B2
  • Filed: 08/28/2009
  • Issued: 04/11/2017
  • Est. Priority Date: 08/13/2008
  • Status: Active Grant
First Claim
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1. A method of using an orthopaedic implant system, said method comprising the steps of:

  • providing an orthopaedic implant defining a reservoir, said implant being an internal fixation device, said implant including a threaded section including said reservoir, said internal fixation device being a bone screw including an exterior surface, a head, and said threaded section, said head including a head channel fluidly communicating said reservoir with an exterior surface of said head, said threaded section including at least one threaded section channel, said at least one threaded section channel fluidly communicating said reservoir with said exterior surface of said bone screw, said implant including a continuously tapering inner surface between said head channel and said reservoir, each threaded section channel having an interior diameter and a length which is greater than said interior diameter, a channel diameter of said head channel being respectively larger than a largest interior diameter of each threaded section channel, said channel diameter of said head channel is the same as a large interior diameter of said reservoir;

    implanting said implant at a selected location within a corporeal body;

    receiving at least one therapeutic agent in said reservoir;

    conveying said at least one therapeutic agent from said reservoir to a treatment site relative to said corporeal body via said at least one threaded section channel; and

    delivering said at least one therapeutic agent to said corporeal body.

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