Device for cleaning a liquid sample taking needle
US4817443A · kind A · utility
30Cited by
13References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 1987 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | Nov 10, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B90/70
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device is provided for cleaning a liquid sample taking needle, mounted fixedly on the frame of a sample taking apparatus, which device includes a mobile mechanism formed of a rinsing case (14) sliding over the sample taking needle (3) between a top position which it occupies during sample taking and a low position which it occupies during cleaning in which it covers the whole of the lower part of the needle, the end of this latter remaining withdrawn inside a cylindrical cleaning chamber (18) provided in the case through which the needle passes and at the lower part of which a depression is applied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.