초록 ▼

This invention relates to condoms, prophylactics and contraceptive devices made of silicone rubber having a body with an open end and a closed end, a first collar proximate to the open end, a second collar adjacent to the first collar, and a series of accordion pleats on the body, wherein the accord

This invention relates to condoms, prophylactics and contraceptive devices made of silicone rubber having a body with an open end and a closed end, a first collar proximate to the open end, a second collar adjacent to the first collar, and a series of accordion pleats on the body, wherein the accordion pleats can independently expand or contract.

대표청구항 ▼

1. A condom comprising: a body with an open end and a closed end, said body extending along a longitudinal axis;a first collar proximate to said open end, said first collar having a first flange;a second collar adjacent to said first collar, said second collar having a second flange;wherein said fir

1. A condom comprising: a body with an open end and a closed end, said body extending along a longitudinal axis;a first collar proximate to said open end, said first collar having a first flange;a second collar adjacent to said first collar, said second collar having a second flange;wherein said first flange and said second flange define a neck portion therebetween; and,a series of accordion pleats on said body between said second collar and said closed end, each said accordion pleat defined by a first surface that extends away from said longitudinal axis of said body and a second surface that slopes toward said longitudinal axis of said body, such that a crease is formed at each intersection of said first and second surfaces;wherein said condom is made of silicone rubber such as to enable each of said accordion pleats to have sufficient structural rigidity to independently expand or contract. 2. The condom of claim 1, wherein said second collar is adapted to engage an internal side of a body orifice during sex to prevent said condom from slipping out of said body orifice, said collar having a diameter smaller than that of said first collar. 3. The condom of claim 1, further comprising: a plurality of ribs arranged in parallel on said neck portion. 4. The condom of claim 1, wherein said accordion pleats are capable of nestling inside one another when the condom is collapsed. 5. The condom of claim 1, wherein said plurality of creased folds form a series of peaks and valleys of different diameters.