Method for fabricating intra-uterine contraceptives
US5417223A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1992 |
| Grant date | May 23, 1995 |
| Priority date | — |
| Expiry date | Sep 16, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F6/144
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a method of fabricating intra-uterine contraceptives, the said contraceptives comprising an elongated component (2), a copper wire spiral (3) placed around the elongated component (2) and a crosswise component (1) attached essentially by its middle point to one end of the elongated component (2). The elongated component (2) essentially of equal diameter throughout its length and the crosswise component (1) lateral to the elongated component (2) and attached to it by its midpoint are formed into a single contiguous piece. A separate copper wire spiral (3) is placed over the elongated component (2) via its unobstructed end, whereafter a sleeve (4) is then attached to support the copper wire spiral (3).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.