Contraceptive

Details Contraceptive Contraceptive

1974-08-28

1976-04-27

Trapp, Lawrence W.

Surgery

Truss

Pad

A61F 546

Patent

active

039527379

ABSTRACT:
A contraceptive device in the form of a pessary or cervical cap for attachment to the cervix, comprising a valve mechanism to permit outflow of material from the cervix and prevent inflow of material into the cervix.

REFERENCES:
patent: 1083721 (1914-01-01), Asch
patent: 2145057 (1939-01-01), Schmid
patent: 2818856 (1958-01-01), Kohl
patent: 2836177 (1958-05-01), Sells

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