Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving glucose or galactose
Reexamination Certificate
2005-04-19
2005-04-19
Gitomer, Ralph (Department: 1651)
Chemistry: molecular biology and microbiology
Measuring or testing process involving enzymes or...
Involving glucose or galactose
C435S028000, C422S051000
Reexamination Certificate
active
06881550
ABSTRACT:
A method for determining the presence of an analyte in a fluid is described along with various components of an apparatus specifically designed to carry out the method. The method involves taking a reflectance reading from one surface of an inert porous matrix impregnated with a reagent that will interact with the analyte to produce a light-absorbing reaction product when the fluid being analyzed is applied to another surface and migrates through the matrix to the surface being read. Reflectance measurements are made at two separate wavelengths in order to eliminate interferences, and a timing circuit is triggered by an initial decrease in reflectance by the wetting of the surface whose reflectance is being measured by the fluid which passes through the inert matrix. Repeatability is insured by a normalization technique performed on the light source before each reading, and an alignment method operated on the reagent strip prior to emplacement on the apparatus. The method and apparatus are particularly suitable for the measurement of flucose levels in blood without requiring separation of red blood cells from serum or plasma.
REFERENCES:
patent: 2297248 (1942-09-01), Rudolph
patent: 2369499 (1945-02-01), Treufalt
patent: 2893843 (1959-07-01), Adams
patent: 2893844 (1959-07-01), Cook
patent: 3061523 (1962-10-01), Free
patent: 3092465 (1963-06-01), Adams et al.
patent: 3099605 (1963-07-01), Free
patent: 3127281 (1964-03-01), Meyer
patent: 3232710 (1966-02-01), Rieckmann et al.
patent: 3989789 (1967-11-01), Mast
patent: 3413198 (1968-11-01), Deutsch
patent: 3443903 (1969-05-01), Haack
patent: 3483031 (1969-12-01), Lauer et al.
patent: 3501009 (1970-03-01), Jaworek
patent: 3506126 (1970-04-01), Serfass
patent: 3509025 (1970-04-01), Bergmeyer et al.
patent: 3511608 (1970-05-01), Anderson
patent: 3552925 (1971-01-01), Fetter
patent: 3552928 (1971-01-01), Fetter
patent: 3560161 (1971-02-01), Webb
patent: 3577162 (1971-05-01), Gaehwiler et al.
patent: 3591480 (1971-07-01), Neff et al.
patent: 3593568 (1971-07-01), Schmitz et al.
patent: 3604815 (1971-09-01), Clemens
patent: 3607093 (1971-09-01), Stone
patent: 3620677 (1971-11-01), Morison
patent: 3630957 (1971-12-01), Rey et al.
patent: 3650698 (1972-03-01), Adler
patent: 3653836 (1972-04-01), Gruber et al.
patent: 3658480 (1972-04-01), Kane et al.
patent: 3660638 (1972-05-01), Oberli
patent: 3663175 (1972-05-01), Depositar et al.
patent: 3672838 (1972-06-01), Trcka et al.
patent: 3677901 (1972-07-01), Bergmeyer et al.
patent: 3690833 (1972-09-01), Ferrari
patent: 3703336 (1972-11-01), Rosse et al.
patent: 3709612 (1973-01-01), Clemens
patent: 3713986 (1973-01-01), Bergmeyer et al.
patent: 3715192 (1973-02-01), Wenz et al.
patent: 3718439 (1973-02-01), Rosse et al.
patent: 3723064 (1973-03-01), Liotta
patent: 3748044 (1973-07-01), Liston
patent: 3762609 (1973-10-01), Hagen et al.
patent: 3765841 (1973-10-01), Paulson et al.
patent: 3769178 (1973-10-01), Rothermel, Jr.
patent: 3775058 (1973-11-01), Bush
patent: 3775595 (1973-11-01), Rosse et al.
patent: 3778350 (1973-12-01), Bergmeyer et al.
patent: 3785772 (1974-01-01), Coggeshall
patent: 3791933 (1974-02-01), Moyer et al.
patent: 3795149 (1974-03-01), Gilette et al.
patent: 3795484 (1974-03-01), Daly et al.
patent: 3798004 (1974-03-01), Zerachia et al.
patent: 3802843 (1974-04-01), Kim
patent: 3804593 (1974-04-01), Smythe et al.
patent: 3811840 (1974-05-01), Bauer et al.
patent: 3814582 (1974-06-01), Rohrbaugh et al.
patent: 3822285 (1974-07-01), Werner et al.
patent: 3847553 (1974-11-01), Verbeck
patent: 3853472 (1974-12-01), Rittersdorf et al.
patent: 3864166 (1975-02-01), Barker et al.
patent: 3876374 (1975-04-01), Burns
patent: 3881992 (1975-05-01), Ralston
patent: 3897214 (1975-07-01), Lange et al.
patent: 3901657 (1975-08-01), Lightfoot
patent: 3902052 (1975-08-01), Amar et al.
patent: 3907503 (1975-09-01), Betts et al.
patent: 3915647 (1975-10-01), Wright
patent: 3917452 (1975-11-01), Rittersdorf et al.
patent: 3917453 (1975-11-01), Milligan et al.
patent: 3919051 (1975-11-01), Koch et al.
patent: 3926736 (1975-12-01), Bucolo
patent: 3929581 (1975-12-01), de Fonseca-Wollheim
patent: 3933593 (1976-01-01), Sternberg
patent: 3936357 (1976-02-01), Milligan et al.
patent: 3942995 (1976-03-01), Ichikawa et al.
patent: 3950133 (1976-04-01), Monte et al.
patent: 3954342 (1976-05-01), Boeke
patent: 3957436 (1976-05-01), Murray
patent: 3958560 (1976-05-01), March
patent: 3960497 (1976-06-01), Acord
patent: 3964870 (1976-06-01), Tiedemann et al.
patent: 3971630 (1976-07-01), Sandrock et al.
patent: 3973129 (1976-08-01), Blumberg et al.
patent: 3973189 (1976-08-01), Angel et al.
patent: 3975398 (1976-08-01), Werner et al.
patent: 3979274 (1976-09-01), Newman
patent: 3980437 (1976-09-01), Kishimoto et al.
patent: 3983005 (1976-09-01), Goodhue et al.
patent: 3985508 (1976-10-01), Williams
patent: 3986833 (1976-10-01), Mast et al.
patent: 3988208 (1976-10-01), Werner et al.
patent: 3990849 (1976-11-01), Lee et al.
patent: 3992158 (1976-11-01), Przybylowicz
patent: 4009615 (1977-03-01), Ruhl
patent: 4011046 (1977-03-01), Labes
patent: 4015121 (1977-03-01), Gagnon et al.
patent: 4022577 (1977-05-01), Brooker et al.
patent: 4038485 (1977-07-01), Johnston et al.
patent: 4040786 (1977-08-01), Trivedi et al.
patent: 4042335 (1977-08-01), Clement
patent: 4043756 (1977-08-01), Sommervold
patent: 4050898 (1977-09-01), Goffe et al.
patent: 4056468 (1977-11-01), Breiter et al.
patent: 4057394 (1977-11-01), Genshaw
patent: 4059405 (1977-11-01), Sodickson et al.
patent: 4061468 (1977-12-01), Lange et al.
patent: 4061469 (1977-12-01), DuBose
patent: 4066403 (1978-01-01), Bruschi
patent: 4068169 (1978-01-01), Angel et al.
patent: 4069017 (1978-01-01), Wu et al.
patent: 4076502 (1978-02-01), Dugle et al.
patent: 4095272 (1978-06-01), Janzen
patent: 4098574 (1978-07-01), Dappen
patent: 4101276 (1978-07-01), Anderson
patent: 4109159 (1978-08-01), Onillon et al.
patent: 4110079 (1978-08-01), Schaeffer et al.
patent: 4125372 (1978-11-01), Kawai et al.
patent: 4128628 (1978-12-01), Brooker et al.
patent: 4135883 (1979-01-01), McNeil et al.
patent: 4144306 (1979-03-01), Figueras
patent: 4152390 (1979-05-01), Nosco et al.
patent: 4153668 (1979-05-01), Hill et al.
patent: 4160464 (1979-07-01), Furutani et al.
patent: 4165508 (1979-08-01), Barter
patent: 4176008 (1979-11-01), Figueras et al.
patent: 4178153 (1979-12-01), Sodickson
patent: 4180060 (1979-12-01), Kutter
patent: 4194191 (1980-03-01), Salem
patent: 4199260 (1980-04-01), Kusnetz et al.
patent: 4199261 (1980-04-01), Tidd et al.
patent: 4211845 (1980-07-01), Genshaw
patent: 4217107 (1980-08-01), Saito et al.
patent: 4218144 (1980-08-01), Whitehouse et al.
patent: 4219529 (1980-08-01), Tersteeg et al.
patent: 4224032 (1980-09-01), Glover et al.
patent: 4226537 (1980-10-01), Colley
patent: 4230456 (1980-10-01), Wu
patent: 4233029 (1980-11-01), Columbus
patent: 4238196 (1980-12-01), Acuff et al.
patent: 4240912 (1980-12-01), Stumpf et al.
patent: 4253846 (1981-03-01), Smythe et al.
patent: 4254083 (1981-03-01), Columbus
patent: 4255384 (1981-03-01), Kitajima et al.
patent: 4255788 (1981-03-01), Schwartz et al.
patent: 4256693 (1981-03-01), Kondo et al.
patent: 4257862 (1981-03-01), Schnipelsky et al.
patent: 4258001 (1981-03-01), Pierce et al.
patent: 4261041 (1981-04-01), Starr
patent: 4269938 (1981-05-01), Frank
patent: 4272482 (1981-06-01), Jessop et al.
patent: 4273868 (1981-06-01), Walter
patent: 4274832 (1981-06-01), Wu et al.
patent: 4276051 (1981-06-01), Ginsberg et al.
patent: 4277561 (1981-07-01), Monget et al.
patent: 4278439 (1981-07-01), White
patent: 4281062 (1981-07-01), Kallis
patent: 4283383 (1981-08-01), Masson et al.
patent: 4283491 (1981-08-01), Dappen
patent: 4288228 (1981-09-01), Oberhardt
patent: 4292272 (1981-09-01), Kitajima et al.
patent: 4297238 (1981-10-01), Vormbrock et al.
patent: 4298345 (1981-11-01), Sodickson et al.
patent: 4298688 (1981-11-01), Kallies
patent: 4299916 (1981-11-01), Litman et al.
patent: 4300906 (1981-11-01), Negersmith
patent: 4302420 (1981-11-01), Jakubowicz et al.
patent: 4303406 (1981-12-01), Ross
patent:
Jurik Franklin A.
McGarraugh Geoffery
Phillips Roger
Underwood Raymond D.
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