Chronic testing of a pacemaker that needs recharging only once every four years.
Publication/Presentation Date
11-1-1976
Abstract
Since 1967, three series of rechargeable single-cell silver-mercuric oxide-zinc pacemakers have been implanted in dogs with complete heart block. The five nonhermetic units in series 1 failed after less than or equal to 18 months, primarily due to prototype cell deficiencies, although one cell functioned for eight years. The six units in series II contained improved cells, but failed due to gradual transepoxy fluid absorption after less than or equal to 31 months. All rechargeable cells were salvaged and dried, and, seven years after their manufacture, they continue to power pacing circuits. Series III now totals 20 doubly hermetically sealed units, tested for up to three years (total more than 300 months or 26 years), with no pacemaker failures. Accelerated tests indicate a minimum life of more than 50 years. A clinical trial is in progress.
Volume
111
Issue
11
First Page
1231
Last Page
1234
ISSN
0004-0010
Published In/Presented At
Tyers, G. F., Brownlee, R. R., Hughes, H. C., Jr, Manley, N. J., Gorman, I. N., & Waldhausen, J. A. (1976). Chronic testing of a pacemaker that needs recharging only once every four years. Archives of surgery (Chicago, Ill. : 1960), 111(11), 1231–1234. https://doi.org/10.1001/archsurg.1976.01360290065009
Disciplines
Medicine and Health Sciences
PubMedID
985070
Department(s)
Department of Surgery
Document Type
Article