Intrauterine device
US4117839A · kind A · utility
Inventor
Key dates
| Filing date | May 16, 1977 |
| Grant date | Oct 3, 1978 |
| Priority date | — |
| Expiry date | May 16, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F6/148
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An intrauterine device providing a membrane to cover substantially the entire surface of the uterine cavity, said device having a Y- and or V-shaped resilient member with two diverging arms, a membrane covering the entire area between the diverging arms and, in addition, extending above an imaginary line passing through the terminal ends of the arms, and a flexible tail or string connected to the intersection of the arms for aiding in the removal of the device from the uterus when desired. Optionally, the arms may having a plurality of flexible spurs extending therefrom for maintaining the intrauterine device in position within the uterus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.