Item ID #
Ota Ring - Nylon L
Tenrei Takeo Ota, Tokyo, Japan
Manufacturer and Distributor
The Ota Ring Kenkyusho, Tokyo, Japan
Polyethylene ring with three curving inner spokes radiating off a central disk. Cogs around outer ring-edge with smaller spurs around inner ring-edge.
Physical rights to the device and the photograph of such are retained by Loma Linda University. Copyrights are observed in accordance with U. S. copyright and patent laws.
Intrauterine Contraception; Intrauterine Devices; Ota Ring