Biological specimen heating device and quality control method for immunohistochemistry heat retrieval procedures
US6580056B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 21, 2001 |
| Grant date | Jun 17, 2003 |
| Priority date | — |
| Expiry date | Jan 22, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2474/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A heating device for heating biological specimens is comprised of an electric pressure cooker with a pressure gauge, and a temperature sensor connected to a controller with a temperature display and a temperature alert. The controller is arranged to heat the specimen at a selectable temperature for a selectable time period. The quality control process is comprised of placing in the cooker a heat sensitive pH indicating retrieval solution, and a heat and pressure sensitive steam strip. When the set temperature has been reached, the actual temperature and pressure are recorded. When the cooker is opened after heating, the pH indicating solution is checked for color change that indicates a pH change, and the steam strip is checked for color change that indicates predetermined temperature and pressure levels have been reached.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.