Item ID #
Polyethylene with barium; nylon thread
John L. Marco
Manufacturer and Distributor
Marco & Son, Inc., Oakhurst, New Jersey, USA; Distributed by Graham-Field Surgical Co.
51mm x 28mm
3-dimensional device. Polyethylene with barium sulfate for radio-opaqueness. Sold on a limited scale. FDA pulled approval due to the problems with closed devices. Nylon threads attached to central axis.
Physical rights to the device and to the photograph are retained by Loma Linda University. Copyrights and patents are observed in accordance with U. S. copyright and patent laws.
Intrauterine Contraception; Intrauterine Devices; Closed Loop IUD; Butterfly