Atrial sensed signal amplifier-ventricular pacemaker, for the management of experimental complete heart block, circa 1959
Description:
Transistor amplifier and pacemaker with gain control and input and output connector. Amplifier works stored in black metal housing with removal top. Exterior to the housing via several case openings is a black plastic toggle switch and two rubber isolated leads with brass or copper connectors. Interior contains wiring, transistors, amplifier works and three batteries.
The Harvard Medical Library does not hold copyright on all the materials in the collection. For use information, contact the Warren Anatomical Museum Curator at chm@hms.harvard.edu
Contact host institution for more information.
Notes:
The pacemaker appears to be a manufacturer model of the Folkman prototype first published in Surgical Forum in 1958. The device was first designed by M. Judah Folkman in his canine cardiac experiments and engineered by Frederick Vanderschmidt of the Massachusetts Institute of Technology. The device was donated to the Harvard Medical Library as part of the M. Judah Folkman papers.
