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US 4,785,804 AGranted
Disposable cervical cap
AssigneePage Hanes, Inc.
InventorsJanet M. Tlapek, Margaret D. Tlapek
Life of this patent
Estimating the term…
Abstract
A disposable cervical cap has a thin, form-assuming pliable dome with an integrally-molded resilient retaining rim. The rim has a bevelled outer shoulder and contains an annular groove on its inner surface. The inner groove and rim define two ascending lips on the inner surface of the rim which prevent dislodgement of the cap from the cervix. The cervical cap includes a set of tabs on its outer surface to assist in positioning and placement of the cap and further includes a loop for removing the cap after use.
Claims9
An improved disposable cervical cap comprising:
- a form-assuming non-resilient pliable dome having an interior and exterior surface, said dome comprising an apex portion and a base portion, and
- a flexible rim integrally-molded to said base portion said rim including an inner and outer surface and a bottom surface, said inner surface having an annular groove descending acutely from said inner wall toward said bottom surface of said rim, whereby said annular groove defines an ascending lip on said inner surface of said rim.
Dependencies are inferred from the claim text.