Diluter
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 16, 1999
Grant Date -
N/A
app pub date -
Mar 24, 1997
filing date -
Mar 15, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A fluid diluter has a hydrodynamic focusing device with a circular mixing chamber opening into a receiving chamber via a sensing aperture. Diluent is supplied from a source and mixed with a sample of blood, for example, and the sensing aperture counts the presence of particles such as hemoglobin in the sample using the impedance method. The receiving chamber is subsequently emptied and the cycle repeated. In one embodiment, through-flow is achieved via a pair of pumps having different pumping capacities, connected together with a common actuator rod between the two pistons. In a second embodiment, four pumps are employed, three of which are ganged together. The system is substantially less bulky than known diluters yet permits accurate attainment of high dilution ratios. Particles may be analyzed in the aperture one at a time without coincidence. Altering relative capacities of the pumps permits adjustment of the dilution ratio.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully