Unveiling the Antigon Winged Contraceptive Coil: A Danish Medical Innovation from the 1960s

This entry details the Antigon Winged contraceptive coil, a Danish innovation from the 1960s. It was designed with features like magnets and 'wings' to improve its effectiveness and reduce the risk of expulsion, aiming to provide a reliable method of contraception.

The Antigon Winged contraceptive coil represents a significant development in third-generation IUD technology, originating from Denmark in the 1960s. Initially prototyped as 'Polygon,' its design evolved to incorporate small magnets within the polyethylene frame. This innovation allowed for external verification via X-ray to ensure the coil remained in place, addressing concerns about unnoticed ejections. Early evaluations of the Antigon-F model in the 1970s demonstrated a very low pregnancy rate, though ejection rates were initially a concern. The coil's original width of 26 millimeters presented insertion challenges, leading to modifications such as narrow slits in the frame to facilitate easier placement into the cervix. To further reduce failure rates, the design was enhanced with 'wings' to increase the surface area. Four distinct prototypes under the 'Antigon' name were developed, reflecting ongoing research and refinement in contraceptive device design. This specific object, Inventory Number 1817, is described as rectangular and ring-shaped with wings and a metallic, magnetic strip, measuring 2.6x3x0.3 cm and in a slightly soiled condition.