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Positive fixation cardiac electrode with drug elution capabilities Patent #: 4819661
ApplicationNo. 398199 filed on 08/23/1989
US Classes:607/120, With drug or medicament-dispensing600/375, Anchored607/127, Axially-mounted helical type607/128Retractable tines or hooks
ExaminersPrimary: Cohen, Lee S.
Assistant: Getzow, S.
Attorney, Agent or Firm
International ClassA61N 001/05
AbstractA cardiac pacing lead or other stimulation lead carrying a drug incorporated into a controlled release device. The lead is provided with an extendable fixation helix which is advanceable from the distal end of the lead in order to engage with the tissue to be stimulated and to maintain the distal end of the lead adjacent the tissue to be stimulated. The controlled release device is located within the fixation helix and is extended with the fixation helix when it is advanced out of the distal end of the lead. In its advanced position, the controlled release device is positioned adjacent the distal end of the lead, preferably in a position to contact the tissue to be stimulated.