Tubular pessary as a contraceptive means
US4579110A · kind A · utility
Inventor
Key dates
| Filing date | Nov 18, 1983 |
| Grant date | Apr 1, 1986 |
| Priority date | — |
| Expiry date | Nov 18, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F6/225
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a tubular pessary having a contraceptive action through the obturation of the proximal uterine tube in non-surgical manner by hysteroscopy and which can easily be worn on either side. The tubular pessary has a cylindrical, sensitive central part permitting the obturation of the uterine tube. It has a distal elastic loop, which prevents sliding back into the uterus of the device. It has a proximal elastic loop, which prevents migration of the device into the abdominal cavity and which can easily be removed through a hysteroscope. The object of the invention is to overcome the inadequacies of the known contraceptive means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.