Intrauterine device having means for changing from uterine-reten

Details Intrauterine device having means for changing from uterine-reten Intrauterine device having means for changing from uterine-reten

1975-06-04

1976-07-27

Trapp, Lawrence W.

Surgery

Truss

Pad

128260, A61F 546

Patent

active

039713679

ABSTRACT:
An improved intrauterine device which delivers a predetermined therapeutically effective dosage of drug locally to the uterus over a defined period of time is disclosed. The device is initially of a uterine-retentive shape. The device is characterized by undergoing a structural biotransformation in the uterus such that at the completion of the defined period of drug delivery it has achieved a nonuterine-retentive configuration.

REFERENCES:
patent: 3143472 (1964-08-01), Lappes
patent: 3533406 (1970-10-01), Tatum
patent: 3625214 (1971-12-01), Higuchi
patent: 3636956 (1972-01-01), Schneider
patent: 3640741 (1972-02-01), Etes
patent: 3659596 (1972-05-01), Robinson
patent: 3699951 (1972-10-01), Zaffaroni
patent: 3710795 (1973-01-01), Higuchi

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