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:
Jun. 02, 2009
Filed:
Apr. 22, 2004
Timothy J. Claude, Coon Rapids, MN (US);
Edward A. Barlow, Bloomington, MN (US);
David W. Hunter, Minneapolis, MN (US);
Michael S. Rosenberg, Eagan, MN (US);
Timothy J. Claude, Coon Rapids, MN (US);
Edward A. Barlow, Bloomington, MN (US);
David W. Hunter, Minneapolis, MN (US);
Michael S. Rosenberg, Eagan, MN (US);
INTERRAD Medical, Inc., Plymouth, MN (US);
Abstract
A dialysis valve includes a tube attached between an artery and a vein which, when elongated, simultaneously narrows in diameter at at least one location. The narrowed portion of the tube decreases the volume and velocity between the arterial and venous side of the patient to prevent damage or intimal hyperplasia on the venous side between dialysis treatments. When the valve is opened for dialysis, an unrestricted blood flow exists between the arterial and venous side, permitting a controlled, open blood flow during dialysis.