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:
Nov. 13, 2001
Filed:
Aug. 19, 1998
Larry Joe Dumont, Arvada, CO (US);
Frank Corbin, III, Littleton, CO (US);
Gambro, Inc., Lakewood, CO (US);
Abstract
A cell storage maintenance and monitoring system includes a blood product storage container, such as a flexible bag, and a microporous membrane which may be attached to an inner wall of the blood storage container to form a contained space between the inner wall and the membrane. The membrane includes a plurality of pores, preferably filled with an erodible substance responsive to a characteristic of the blood product, such as pH. When the pH value drops to a predetermined level, the substance begins to erode, causing the pores to enlarge, and allowing a portion of the blood product to pass through the pores into the contained space, where it can be visibly detected. The contained space may contain a chemical indicator or buffers and nutrients, which are released into the blood product when the pores begin to open. In another embodiment, the microporous membrane may be in the form of a pod or capsule which may be attached to the wall or allowed to free-float within the contents of the storage container.