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Modular drug delivery system for minimizing trauma during and after insertion of a cochlear lead

  • US 8,271,101 B2
  • Filed: 07/31/2009
  • Issued: 09/18/2012
  • Est. Priority Date: 08/29/2007
  • Status: Active Grant
First Claim
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1. A system for delivering a therapeutic agent to biological tissue comprising:

  • a surgically implantable lead configured to be inserted into said biological tissue, said surgically implantable lead comprising a coating containing said therapeutic agent, said therapeutic agent comprising mixed DXMb and DEX salt;

    said coating releasing said therapeutic agent into said biological tissue, wherein said therapeutic agent comprises DXMb coupled to said surgically implantable lead, DEX salt deposited over said DXMb, wherein said DEX salt is configured to rapidly elute into said biological tissue when said surgically implantable lead is implanted and said DXMb is configured to more slowly elute into said biological tissue at a lower concentration than said DEX salt.

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