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:
Dec. 27, 2005
Filed:
Jan. 07, 2002
Jeffrey H. Burbank, Boxford, MA (US);
James M. Brugger, Newburyport, MA (US);
Dennis M. Treu, Bedford, MA (US);
C. David Finch, Jr., Clinton, MS (US);
Barry N. Fulkerson, Longmont, CO (US);
Steven A. White, Marlboro, MA (US);
Jeffrey H. Burbank, Boxford, MA (US);
James M. Brugger, Newburyport, MA (US);
Dennis M. Treu, Bedford, MA (US);
C. David Finch, Jr., Clinton, MS (US);
Barry N. Fulkerson, Longmont, CO (US);
Steven A. White, Marlboro, MA (US);
NxStage Medical Inc., Lawrence, MA (US);
Abstract
A flow management system for extracorporeal blood treatment application helps to ensure proper balance of incoming and outgoing fluids by precise balancing of relatively small balance chambers. The invention employs combinations of features that help to ensure accuracy including underfilling of the waste flow side of a fixed volume chamber and mechanical connections to synchronize valves and pumps.