Intrauterine contraceptive device

Details Intrauterine contraceptive device Intrauterine contraceptive device

1977-03-14

1978-10-03

Trapp, Lawrence W.

Surgery

Truss

Pad

A61F 546

Patent

active

041178386

ABSTRACT:
An intrauterine contraceptive device (IUD) is provided for placement in the frontal plane of the upper uterine segment. The IUD comprises a member formed of flexible material and having a central portion, with a pair of upper arms extending outwardly and around from the central portion to form non-spiral loops in which the distal end of each of the arms does not return toward and overlap the central portion. This construction prevents the formation of a spiral under normal compression which may cause the distal ends to extend out of the main plane of the member. This construction also allows the IUD to be retained in a stable state in the frontal plane, adapts the IUD to uterine shape variations and contains a compliance property that combines transverse bend resilience with axial stiffness.

REFERENCES:
patent: 3374788 (1968-03-01), Rosenthal
patent: 3516403 (1970-06-01), Cournut
patent: 3842826 (1974-10-01), Nolan
patent: 3881475 (1975-05-01), Gordon et al.
patent: 3913573 (1975-10-01), Gutnick

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