Straw for storing a biological liquid, and a method of filling it
US5868178A · kind A · utility
14Cited by
2References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 19, 1997 |
| Grant date | Feb 9, 1999 |
| Priority date | — |
| Expiry date | Sep 19, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S604/905
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A straw for storing a biological liquid such as animal semen, the straw comprising a fine tube open at both ends and closed by a plug engaged in one of said ends, said plug being formed by a powder suitable for transforming, on contact with the liquid, into a paste that is impermeable and leakproof, which powder is interposed between an external wad and an internal wad of a fiber material that is permeable to air and to liquids. The length of the external wad is at least twice as long as the length of the internal wad.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.