Microvalve controlled precision fluid dispensing apparatus with a self-purging feature and method for use
US8597592B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 13, 2006 |
| Grant date | Dec 3, 2013 |
| Priority date | — |
| Expiry date | Nov 10, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/2575
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus and methods for the precise, repeatable dispensing of small, sample fluid volumes, especially as related to the printing of microarrays for biological and/or chemical testing. A pressure tuning module meters fluid volumes for aspiration and dispensation and builds pressure for fluid dispensation, in conjunction with a microvalve that precisely controls the volume of the fluid dispensed under the built pressure. A pressure source can be switched in line to efficiently purge the apparatus of residual sample fluid. A working fluid can be optionally aspirated into the system, prior to aspirating the sample fluid, in order to maximize sample fluid recovery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.