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:
Oct. 07, 1997
Filed:
Apr. 30, 1996
Rodney S Kenley, Libertyville, IL (US);
Dawn Matthews, Grayslake, IL (US);
Douglas L Wilkerson, Gurnee, IL (US);
Dennis M Treu, Gurnee, IL (US);
Frederick H Peter, Jr, Barrington, IL (US);
Tom L Brose, Gurnee, IL (US);
Thomas M Feldsein, Palatine, IL (US);
AKSYS, Ltd., Lincolnshire, IL (US);
Abstract
A method is described for automatically testing the integrity of a dialyzer filter within a dialysis machine. The method consists of substantially removing fluids which may be present from the blood side of the dialyzer filter, pumping air into the blood side of the dialyzer filter with a blood pump to pressurize the dialyzer filter, and measuring the pressurization of the dialyzer filter. If the dialyzer filter pressurizes, the rate of decay of pressurization is measured. The pressurization and rate of decay are indicative of the integrity of the membrane of the dialyzer filter.