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:
Jan. 03, 1995
Filed:
Oct. 07, 1993
Applicant:
Inventors:
Charles S Bankert, Oceanside, CA (US);
Soonkap Hahn, Poway, CA (US);
Henry K Hui, Laguna Niguel, CA (US);
Assignee:
Puritan-Bennett Corporation, Carlsbad, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; C09B / ;
U.S. Cl.
CPC ...
422 8207 ; 422 8206 ; 385 12 ; 128634 ; 8647 ;
Abstract
The optical fiber pH microsensor includes an optical fiber having a portion of the surface of a light conducting core covered with a layer of a pH sensitive dye material. The dye material is covalently bonded to a polymeric matrix which is in turn covalently bonded to the optical fiber core to prevent leaching of the indicator dye material during extended use. The dye material is crosslinked in situ over the tip of the optical fiber to yield a hydrophilic, ion permeable pH sensor which can be used intravascularly to monitor blood