Fiberglass needle electrodes for transmural cardiac mapping

Academic Article


  • We developed a new method for fabricating plunge needle electrodes for use in cardiac mapping. The needles have 12 electrodes with 1-mm spacing, are 0.5 mm in diameter, and are fabricated from fiberglass reinforced epoxy. They are stiff enough to be easily inserted into beating hearts and durable enough to be reused many times. We found that these new needles elicit smaller, more quickly resolving injury potentials, and when inserted in a row with 2-mm spacing, disrupt ventricular fibrillation activation patterns less than traditional steel needles.
  • Authors

    Digital Object Identifier (doi)

    Author List

  • Rogers JM; Melnick SB; Huang J
  • Start Page

  • 1639
  • End Page

  • 1641
  • Volume

  • 49
  • Issue

  • 12 I