Tissue specimen treatment apparatus
US4834019A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 1987 |
| Grant date | May 30, 1989 |
| Priority date | — |
| Expiry date | Nov 25, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N1/312
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Tissue specimen treatment apparatus of the multi-chamber type having a plurality of containers, for instance arranged in a circle, and means for transporting a specimen for treatment to selected such chambers in a prescribed sequence, is characterized by a containment vessel disposed about at least the open tops of the containers and by cover means movable with the transporting means and evelosing the interior of the containment vessel so as to separate the specimen from the ambient atmosphere. The cover means preferably closely overlies the open tops of the containers to minimize the volume of the containment vessel, and is formed with a small volume transfer enclosure to receive a specimen during transport. The cover may have a close fit to the containment vessel, sufficient to restrict exchange of gases etc. between the external atmosphere and the containment vessel, or more positive sealing arrangements may be provided--e.g. labyrinth, flexible or liquid seals--to prevent flows between the vessel and the environment. Additionally or alternatively, positive venting of the containment vessel by withdrawal of its atmosphere may ensure that all leakages are into the vessel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.