Determining conditions in centrifuged blood using measured pressure
US9719906B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2012 |
| Grant date | Aug 1, 2017 |
| Priority date | — |
| Expiry date | Jul 2, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2015/055
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for determining a condition in a blood sample includes: providing a sample of blood; providing a metering probe having a pump for aspirating and dispensing; inserting the metering probe a selected distance into the blood sample; measuring the pressure between the sample and pump during sample aspiration or sample dispense; comparing the measured pressure with a reference value; and signaling the presence or absence of the condition. A method for confirming or detecting the presence of a selected layer of blood component in a centrifuged blood sample includes: measuring a pressure of a suspected selected layer in a metering probe during aspiration or dispense; comparing the measured pressure with a reference value, wherein if the measured pressure and the reference value are substantially identical then the selected layer of the blood component is confirmed. In a preferred embodiment the reference value is a pre-selected pressure range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.