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 in Berkeley, California.
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