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:
Jul. 15, 1997
Filed:
Jun. 07, 1995
Roy S Hovland, Denver, CO (US);
Byron W Larson, Arvada, CO (US);
Jo-Ann B Maltais, Morrison, CO (US);
COBE Laboratories, Inc., Arvada, CO (US);
Abstract
An extracorporeal fluid treatment apparatus which is selectively operable in a disinfecting mode or a treatment mode includes an inlet line, a pre-treatment portion, an input pump, a heater, an input shunt, a filtration device, a post-treatment portion, a drain line and an output shunt. The apparatus also includes a combination of valves which are selectively positionable in disinfecting mode to create an input fluid circuit which includes the pre-treatment portion and the input shunt, and which is in fluid isolation from the post-treatment portion and from the filtration device. In disinfecting mode, the valves are also selectively positionable to create an output fluid circuit which includes the post-treatment portion and the output shunt, and which is in fluid isolation from the pre-treatment portion and from the filtration device. In disinfecting mode, a heated input fluid is circulated in the input fluid circuit and a heated output fluid is circulated in the output fluid circuit until disinfection of each of the input and output fluid circuits is achieved. The apparatus optionally includes a heat exchanger through which heat is transferred while in disinfecting mode from the input fluid in the pre-treatment portion to the output fluid in the post-treatment portion.