Surgery – Male reproductory tract shields or birth control devices – Condoms
Patent
1985-12-02
1989-01-03
Rosenbaum, C. Fred
Surgery
Male reproductory tract shields or birth control devices
Condoms
604349, A61F 544
Patent
active
047954256
ABSTRACT:
A spermicidal contraceptive sheath and method of manufacture are disclosed. The sheath has a first spermicide-containing semi-solid inside the sheath at the closed end thereof. A spermicide-containing lubricant is provided at least on the outside surface of the sheath. A dose of spermicide is automatically provided both on the outside of the sheath and on the inside. If the sheath ruptures, a double dosage of spermicide is available to provide an extra measure of contraceptive effectiveness.
REFERENCES:
patent: Re29102 (1977-01-01), Scherm
patent: D246119 (1977-10-01), Okamoto
patent: 2904041 (1959-09-01), Brown
patent: 3282414 (1966-11-01), Penska
patent: 3363624 (1968-01-01), Fishman
patent: 3826828 (1974-07-01), Morel
patent: 4004591 (1977-01-01), Freimark
patent: 4187286 (1980-02-01), Marcus
patent: 4332243 (1982-06-01), Gutnick
patent: 4415548 (1983-11-01), Reddy
Ansell Incorporated
Costantino Mario
Rosenbaum C. Fred
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