The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 21, 2012
Filed:
Dec. 13, 2006
Applicants:
Eric V. Duhamel, Nashua, NH (US);
Tuan Ha, Randolph, MA (US);
Inventors:
Eric V. Duhamel, Nashua, NH (US);
Tuan Ha, Randolph, MA (US);
Assignee:
Cytyc Corporation, Marlborough, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12N 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for determining when sufficient cells of a biological specimen have been collected by a filter is based on measuring an air flow rate between a filter and a vacuum source. The air flow rate can be measured by a mass air flow sensor. The air flow rate dropping below a threshold, such as a certain percentage of an initial or baseline flow rate, indicates that sufficient cells have been collected to provide sufficient filter coverage.