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:
Sep. 15, 1998
Filed:
Apr. 30, 1996
Applicant:
Inventors:
Assignee:
Medtronic, Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
204418 ; 204403 ; 4352871 ; 435817 ; 422 8203 ;
Abstract
A ion selective electrode is formed by an electrode having a first membrane with a diffusion rate selective to heparin or other polyions, and a selective polymeric coating thereon having a polyion diffusion rate lower than the polyion diffusion rate of the first membrane. The electrode is sensitive to solutions containing low polyion concentrations such as low heparin concentrations.