Journal
IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING
Volume 49, Issue 12, Pages 1639-1641Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TBME.2002.805483
Keywords
plunge needle; unipolar mapping; ventricular fibrillation
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Funding
- NHLBI NIH HHS [HL-64184] Funding Source: Medline
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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.
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