Abstract: A conforming valved cervical cap assembly is provided with an elastomeric inner layer molded and cured in situ adjacent the exocervical surface of a cervix uteri. The inner layer is wettable, non-porous and matingly fits and resiliently complements the exocervical surface. In order to prevent the molding material from clogging or otherwise impairing operation of the valve, a valve cover is detachably connected to the valve during molding and curing.
Type:
Grant
Filed:
July 1, 1983
Date of Patent:
May 21, 1985
Assignees:
University Patents, Inc., Contracap, Inc.
Inventors:
Robert A. Goepp, Uwe E. Freese, Marvin P. Loeb
Abstract: A non-invasive birth control device in the form of a custom-formed, valved cervical cap is disclosed. The cervical cap comprises a cup-shaped elastomeric shell substantially complementary with contiguous surface of portio vaginalis cervicis when in contact therewith, having an aperture at the apex of the shell, and a depending skirt that is thinner than said shell and is provided with a plurality of spaced slits. The aperture is covered by an elastomeric web secured to the shell and defines, together with the shell, a one-way valve means having a discharge port offset from the aperture. The cervical cap can be fabricated from a specially designed blank of a thermoplastic elastomeric material using a replica of cervix uteri as a mold.
Type:
Grant
Filed:
September 27, 1982
Date of Patent:
May 29, 1984
Assignees:
University Patents, Inc., Contracap, Inc.
Inventors:
Robert A. Goepp, Uwe E. Freese, Marvin P. Loeb
Abstract: A conforming valved cervical cap assembly is provided with an elastomeric inner layer molded and cured in situ adjacent the exocervical surface of a cervix uteri. The inner layer is wettable, nonporous and matingly fits and resiliently complements the exocervical surface. In order to prevent the molding material from clogging or otherwise impairing operation of the valve, a valve cover is detachably connected to the valve during molding and curing.
Type:
Grant
Filed:
November 18, 1980
Date of Patent:
August 30, 1983
Assignees:
University Patents, Inc., Contracap, Inc.
Inventors:
Robert A. Goepp, Uwe E. Freese, Marvin P. Loeb
Abstract: A non-invasive birth control device in the form of a custom-formed, valved cervical cap is disclosed. The cervical cap comprises a cup-shaped elastomeric shell substantially complementary with contiguous surface of portio vaginalis cervicis when in contact therewith, having an aperture at the apex of the shell, and a depending skirt that is thinner than said shell and is provided with a plurality of spaced slits. The aperture is covered by an elastomeric web secured to the shell and defines, together with the shell, a one-way valve means having a discharge port offset from the aperture. The cervical cap can be fabricated from a specially designed blank of a thermoplastic elastomeric material using a replica of cervix uteri as a mold.
Type:
Grant
Filed:
June 26, 1980
Date of Patent:
January 18, 1983
Assignees:
University Patents, Inc., Contracap, Inc.
Inventors:
Robert A. Goepp, Uwe E. Freese, Marvin P. Loeb
Abstract: A prefabricated cervical cap includes a generally dome-like flexible shell of a depth sufficient to receive therein a major portion but not all of cervix uteri and a resilient, form-assuming internal liner for the shell. The liner is integral with the shell and is deformable upon contact with cervix uteri without substantial deformation of a contiguous portion of the cervix uteri. The liner may extend beyond the shell. In a preferred embodiment the cervical cap includes a one-way valve means that accomodates the flow of a uterine discharge without need to remove the cap.