Spermicidally lubricated prophylactics and method for making same

Claim 1

A method for manufacturing a lubricated spermicidal male contraceptive which comprises: (a) dipping a phallic shaped mandrel of predetermined size into a warm bath consisting of latex rubber; (b) withdrawing said mandrel bearing a coating consisting essentially of latex rubber from the latex bath; (c) allowing the latex rubber coating on said mandrel to harden to form a sheath conforming to the shape of said mandrel; (d) unrolling the sheath from said mandrel to form a cup; (e) dispensing an effective contraceptive amount of a migratory pharmaceutical formulation comprising a liquid nonionic surfactant spermicidal agent having an approximately neutral pH, and a polyethylene glycol lubricant composition into the latex cup whereby the pharmaceutical formulation migrates by capillary action substantially throughout the inner and outer surfaces of the latex sheath; and (f) sealing the latex sheath containing said spermicide and said lubricant in an airtight container.

Claim 2

A method for manufacturing a lubricated spermicidal male contraceptive which comprises: (a) dipping a phallic shaped mandrel of predetermined size into a warm bath consisting of latex rubber; (b) withdrawing said mandrel bearing a coating consisting essentially of latex rubber from the latex bath; (c) allowing the latex rubber coating on said mandrel to harden to form a sheath conforming to the shape of said mandrel; (d) unrolling the sheath from said mandrel to form a cup; (e) dispensing an effective contraceptive amount of a migratory pharmaceutical formulation comprising a liquid nonionic surfactant spermicidal agent having an approximately neutral pH, and a polyethylene glycol lubricant composition into the latex cup whereby the pharmaceutical formulation migrates by capillary action substantially throughout the inner and outer surfaces of the latex sheath; and (f) sealing the latex sheath containing said spermicide and said lubricant in an airtight container.

Claim 6

The method of manufacturing latex sheaths coated substantially throughout with a spermicidal agent which comprises: forming a blunt-shaped sheath consisting essentially of latex rubber having a closed forward end and a generally circular rearward opening, rolling said sheath up toward the front end along the longitudinal axis of the sheath to form a generally circular cup shaped container having a bowl shaped recess corresponding to the closed forward end of said sheath, dispensing a predetermined quantity of a pharmaceutical formulation into the bowl of said cup, said formulation comprising an effecting contraceptive amount of a nonionic spermicidal agent and a polyethylene glycol lubricant composition, and thereafter sealing said sheath in an airtight enclosure.

Claim 7

The method of manufacturing latex sheaths coated substantially throughout with a spermicidal agent which comprises: forming a blunt-shaped sheath consisting essentially of latex rubber having a closed forward end and a generally circular rearward opening, rolling said sheath up toward the front end along the longitudinal axis of the sheath to form a generally circular cup shaped container having a bowl shaped recess corresponding to the closed forward end of said sheath, dispensing a predetermined quantity of a pharmaceutical formulation into the bowl of said cup, said formulation comprising an effecting contraceptive amount of a nonionic spermicidal agent and a polyethylene glycol lubricant composition, and thereafter sealing said sheath in an airtight enclosure.