Patent · US Active

Methods, systems, and apparatus to determine a clot carryout condition upon probe retraction during sample aspiration and dispensing

US9052300B2 · kind B2 · utility

1Cited by

4References

17Claims

0Family size

Inventors

Alexander Evers · Wilmington, US
Bridgett Angela Harris · Elkton, US
Alexander Openstone · Wilmington, US
Jeffrey Kenneth Parmer · Newark, US

Key dates

Filing date	Jan 21, 2011
Grant date	Jun 9, 2015
Priority date	—
Expiry date	Dec 17, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG01N2035/1018
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method of determining a condition of clot carryout from a sample container containing a sample fluid is disclosed. During aspiration of a fluid sample (e.g., blood), a level sensor, such as a capacitance sensor, is used to measure ascending and descending liquid level readings. A difference between the ascending and descending liquid level readings may be compared to a predetermined threshold. Non-ideal conditions, such as a clot carryout condition wherein a clot is carried out of the sample container on the exterior surface of the probe may be detected thereby. Systems and apparatus for carrying out the method are provided, as are other aspects.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.