Optics: measuring and testing – Blood analysis
Reexamination Certificate
2006-02-21
2006-02-21
Lauchman, Layla G. (Department: 2877)
Optics: measuring and testing
Blood analysis
C356S432000, C356S436000
Reexamination Certificate
active
07002670
ABSTRACT:
An improved optical sensor and method for measuring concentration of a chemical constituent where measurement interference from other chemical compounds is present in the solution is provided. More specifically, the invention relates to a system for measuring the amount of creatinine in effluent dialysate during, before, or following a kidney dialysis procedure and a method for using the same. Alternatively, the method may be used with blood and other body fluids or solutions that contact the patient. The system may use an enzyme or other chemical process to specifically remove or convert an analyte with an intrinsic optical absorbance. By measuring the absorbance before and after the chemical process the analyte can be measured with high accuracy and specificity. The method may be extended to multiple analyte measurements using cascaded chemical processes.
REFERENCES:
patent: 3881992 (1975-05-01), Ralston
patent: 4816393 (1989-03-01), Siedel et al.
patent: 4954435 (1990-09-01), Krauth
patent: 5252488 (1993-10-01), Purdie
patent: 5331958 (1994-07-01), Oppenheimer
patent: 5348003 (1994-09-01), Caro
patent: 5527708 (1996-06-01), Blass
patent: 5602038 (1997-02-01), Kell
patent: 5602647 (1997-02-01), Xu et al.
patent: 5733787 (1998-03-01), Messenger et al.
patent: 5772606 (1998-06-01), Ashibe et al.
patent: 5815260 (1998-09-01), Dou et al.
patent: 5822071 (1998-10-01), Dosmann et al.
patent: 5858644 (1999-01-01), Chen
patent: 5958786 (1999-09-01), Munkholm
patent: 6028311 (2000-02-01), Sodickson et al.
patent: 6044285 (2000-03-01), Chaiken et al.
patent: 6087182 (2000-07-01), Jeng et al.
patent: 6107083 (2000-08-01), Collins et al.
patent: 6151522 (2000-11-01), Alfano et al.
patent: 6241863 (2001-06-01), Monbouquette
patent: 6262798 (2001-07-01), Shepherd et al.
patent: 6268910 (2001-07-01), Samsoondar et al.
patent: 6306660 (2001-10-01), Messenger et al.
patent: 6788414 (2004-09-01), Yeung et al.
patent: WO 96/18096 (1996-06-01), None
patent: WO 01/53806 (2001-07-01), None
patent: WO 02/01195 (2002-01-01), None
Patent Abstracts of Japan Publication No. 62228145 dated Jul. 10, 1987 entitled “Ultraviolet Type Organic Substance Measuring Apparatus”.
Li et al. article entitled “Sol-gel encapsulation of lactate dehydrogenase for optical sensing of L-lactate”Biosensors&Bioelectronics17 (2002) pp. 323-330.
Rosa et al. article entitled “Optical biosensor based on nitrite reductase immobilized in controlled pore glass”Biosensors&Bioelectronics17 (2002) pp. 45-52.
Pan Li
Wariar Ramesh
Baxter Healthcare S.A.
Baxter International Inc.
Bell Boyd & Lloyd LLC
Lauchman Layla G.
Reagen Joseph P.
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