Contraceptive diaphragm
US5771900A · kind A · utility
21Cited by
8References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 1997 |
| Grant date | Jun 30, 1998 |
| Priority date | — |
| Expiry date | Jul 22, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F6/08
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A contraceptive diaphragm having a rim surrounding a thin membrane, the membrane having a cervical dome extending downwardly from a posterior portion of the membrane. The rim has two curvilinear bands joined together at their respective ends and encased in a coil spring. The shape of the bands creates a rim which curves slightly upwardly at the anterior end of the diaphragm and slightly downwardly at its posterior end. The rim is formed with a curvilinear profile which provides an advantageous fit. A small dome projects upwardly from an anterior portion of the membrane which is grasped by the wearer to remove the diaphragm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.