Schimert-Cutter Heart Valve

The Schimert-Cutter valve also known as the "Toilet Seat" valve dates to 1967/1968. It is 29 mm in diameter with serial number 656R. According to donor Manuel “Manny” Villafaña, this valve was never implanted and never went into production because it does not always close properly, a significant structural issue.
Dr. George Schimert (1918-2000) was born in Switzerland, grew up in Budapest, Hungary, and received his medical degrees from Pazmany Peter University in Hungary, and Freidrich Wilhelm University in Germany. Cutter Laboratories founded by Edward Ahern Cutter in 1897 was a family-owned pharmaceutical company located in Berkeley, California.
Currently not on view
Object Name
artificial heart valve
date made
ca 1967
Cutter Laboratories, Inc.
Physical Description
plastic (valve material)
cloth (valve material)
metal (valve material)
overall: 1.1 cm x 3.6 cm; 7/16 in x 1 13/32 in
place made
United States: California, Berkeley
ID Number
catalog number
accession number
serial number
Artificial Heart Valves
Artificial Organs
Health & Medicine
See more items in
Medicine and Science: Medicine
Artificial Heart Valves
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Gift of Manuel Villafaña
Additional Media

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