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US007349735B2
(12) United States Patent
Rubin et al.
(io) Patent No.: (45) Date of Patent:
US 7,349,735 B2 *Mar. 25, 2008
(54) METHODS AND APPARATUS FOR
TREATING FIBRILLATION AND CREATING
DEFIBRILLATION WAVEFORMS
(75) Inventors: Leo Rubin, Suffern, NY (US);
Christopher A. Bonnerup, Alvin, TX
(US); Edward A. Schroeppel, Lake
Jackson, TX (US)
(73) Assignee: Intermedics Inc., Angleton, TX (US)
( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 572 days.
This patent is subject to a terminal disclaimer.
(21) Appl. No.: 10/811,178
(22) Filed: Mar. 26, 2004
(65) Prior Publication Data
US 2004/0186521 Al Sep. 23, 2004
Related U.S. Application Data
(62) Division of application No. 09/966,233, filed on Sep. 28, 2001, now Pat. No. 6,757,561, which is a division of application No. 09/371,279, filed on Aug. 10, 1999, now Pat. No. 6,298,266.
(51) Int. CI.
A61N1/39 (2006.01)
(52) U.S. CI 607/5
(58) Field of Classification Search 607/4 8
See application file for complete search history.
(56) References Cited
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(Continued)
FOREIGN PATENT DOCUMENTS
EP 0280526 8/1988
OTHER PUBLICATIONS
Cleland, B. G., "A Conceptual Basis for Defibrillation Waveforms", PACE, 19, (Aug. 1996),pp. 1186-1195.
(Continued)
Primary Examiner—Scott M. Getzow
(74) Attorney, Agent, or Firm—Schwegman, Lundberg &
Woessner, PA.
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OTHER PUBLICATIONS
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Jones, J. L., et al., "Cellular Excitation With High-Frequency Chopped Defibrillator Waveforms", IEEE, (1994),pp. 17-18. Natale, A., et al., "Relative Efficacy of Different Tilts With Biphasic Defibrillation in Humans", PACE, 19, (Feb. 1996),pp. 197-206. Sweeney, R. J., et al., "Defibrillation Using a High-Frequency Series of Monophasic Rectangular Pulses: Observation and Model Predictions", Journal of Cardiovascular Electrophysiology, 7, (Feb. 1996), 134-143.
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