US Patent No: 4,824,639

Number of patents in Portfolio can not be more than 2000

Test device and a method for the detection of a component of a liquid sample

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Abstract

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In a test strip for the detection of a component in a liquid sample, the strip comprising a support layer, a microporous polymer layer and a reagent for the detection of the component to be determined, the improvement wherein the microporous polymer layer is a membrane which has an asymmetric pore structure with the narrower pores being on the side to which the sample is applied, and the support layer is macroscopically smooth. The porous membrane is produced by coagulation from solution.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
BAYER AKTIENGESELLSCHAFTLEVERKUSEN1002

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dhein, Rolf Krefeld, DE 131 1218
Frank, Georg Elkhart, IN 51 802
Hildenbrand, Karlheinz Krefeld, DE 32 579
Perrey, Hermann Krefeld, DE 24 379
von, Dohren Hans-Hagen Bochum-Langendreer, DE 2 187

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
9,089,678 Method and apparatus for penetrating tissue 0 2012
 
CHEMTRAK, INC. (1)
* 5,423,989 Plasma forming device 40 1993
 
3M INNOVATIVE PROPERTIES COMPANY (1)
7,378,451 Surfactant composition having stable hydrophilic character 2 2003
 
X-Flor B.V. (1)
* 5,240,862 Process and device for the separation of a body fluid from particulate materials 54 1989
 
ROCHE DIAGNOSTICS OPERATIONS, INC. (2)
7,955,563 Methods for applying reactive films containing solids to microporous membranes and membranes produced therefrom 0 2007
8,202,490 Membranes and methods for coating membranes 3 2011
 
Pelikon Technologies, Inc. (1)
7,648,468 Method and apparatus for penetrating tissue 93 2002
 
PELIKAN TECHNOLOGIES, INC. (1)
8,197,423 Method and apparatus for penetrating tissue 0 2010
 
Peliken Technologies, Inc. (1)
7,666,149 Cassette of lancet cartridges for sampling blood 17 2002
 
PALL CORPORATION (1)
6,440,306 Large pore synthetic polymer membranes 17 2000
 
ROCHE DIAGNOSTICS GMBH (1)
* 6,287,867 Asymmetric porous membranes 4 1994
 
HYPOGUARD LIMITED (1)
* 5,494,638 Support membrane 56 1994
 
ROCHE DIABETES CARE, INC. (12)
* 4,994,238 Constant volume chemical analysis test device 59 1988
* 5,962,215 Methods for testing the concentration of an analyte in a body fluid 89 1996
* 5,824,491 Dry reagent test strip comprising benzidine dye precursor and antipyrine compound 155 1996
* 5,948,695 Device for determination of an analyte in a body fluid 48 1997
* 5,872,713 Synchronized analyte testing system 316 1997
* 6,106,780 Synchronized analyte testing system 162 1999
6,271,045 Device for determination of an analyte in a body fluid 48 1999
6,544,475 Synchronized analyte testing system 37 2000
6,780,651 Device for determination of an analyte in a body fluid 25 2001
6,818,180 Devices for testing for the presence and/or concentration of an analyte in a body fluid 170 2001
8,690,798 Methods and apparatus for sampling and analyzing body fluid 0 2012
8,740,813 Methods and apparatus for expressing body fluid from an incision 0 2012
 
MILES INC. (2)
* 5,124,128 Process for the production of porous membranes, the membranes produced thereby and their use as supporting matrices in test strips 26 1989
* 5,160,436 Asymmetric sandwich membrane system having reduced ascorbate interference 7 1991
 
SANOFI (2)
8,828,203 Printable hydrogels for biosensors 0 2005
8,808,201 Methods and apparatus for penetrating tissue 0 2008
 
NIPRO DIAGNOSTICS, INC. (6)
6,458,326 Protective test strip platform 10 1999
6,562,625 Distinguishing test types through spectral analysis 69 2001
6,541,266 Method for determining concentration of an analyte in a test strip 215 2001
6,525,330 Method of strip insertion detection 80 2001
6,979,571 Method of using a protective test strip platform for optical meter apparatus 98 2002
7,390,665 Distinguishing test types through spectral analysis 11 2003
 
SANOFI-AVENTIS DEUTSCHLAND GMBH (107)
7,780,631 Apparatus and method for penetration with shaft having a sensor for sensing penetration depth 1 2001
7,041,068 Sampling module device and method 266 2002
7,025,774 Tissue penetration device 157 2002
7,749,174 Method and apparatus for lancet launching device intergrated onto a blood-sampling cartridge 7 2002
7,699,791 Method and apparatus for improving success rate of blood yield from a fingerstick 0 2002
7,682,318 Blood sampling apparatus and method 91 2002
7,537,571 Integrated blood sampling analysis system with multi-use sampling module 91 2002
7,713,214 Method and apparatus for a multi-use body fluid sampling device with optical analyte sensing 83 2002
7,708,701 Method and apparatus for a multi-use body fluid sampling device 2 2002
7,226,461 Method and apparatus for a multi-use body fluid sampling device with sterility barrier release 107 2002
7,198,606 Method and apparatus for a multi-use body fluid sampling device with analyte sensing 302 2002
7,901,362 Method and apparatus for penetrating tissue 3 2002
7,717,863 Method and apparatus for penetrating tissue 2 2002
7,674,232 Method and apparatus for penetrating tissue 85 2002
7,582,099 Method and apparatus for penetrating tissue 92 2002
7,563,232 Method and apparatus for penetrating tissue 95 2002
7,547,287 Method and apparatus for penetrating tissue 94 2002
7,524,293 Method and apparatus for penetrating tissue 93 2002
7,491,178 Method and apparatus for penetrating tissue 101 2002
7,485,128 Method and apparatus for penetrating tissue 85 2002
7,374,544 Method and apparatus for penetrating tissue 150 2002
7,371,247 Method and apparatus for penetrating tissue 101 2002
7,331,931 Method and apparatus for penetrating tissue 92 2002
7,297,122 Method and apparatus for penetrating tissue 93 2002
7,291,117 Method and apparatus for penetrating tissue 91 2002
7,244,265 Method and apparatus for penetrating tissue 93 2002
7,232,451 Method and apparatus for penetrating tissue 87 2002
7,229,458 Method and apparatus for penetrating tissue 138 2002
7,258,693 Device and method for variable speed lancet 91 2003
8,267,870 Method and apparatus for body fluid sampling with hybrid actuation 1 2003
7,892,183 Method and apparatus for body fluid sampling and analyte sensing 8 2003
8,574,895 Method and apparatus using optical techniques to measure analyte levels 0 2003
8,262,614 Method and apparatus for fluid injection 1 2004
7,850,621 Method and apparatus for body fluid sampling and analyte sensing 15 2004
7,604,592 Method and apparatus for a point of care device 100 2004
8,282,576 Method and apparatus for an improved sample capture device 6 2004
8,668,656 Method and apparatus for improving fluidic flow and sample capture 0 2004
7,822,454 Fluid sampling device with improved analyte detecting member configuration 15 2005
8,721,671 Electric lancet actuator 0 2005
8,211,037 Tissue penetration device 0 2005
8,206,317 Tissue penetration device 0 2005
8,016,774 Tissue penetration device 3 2005
7,981,055 Tissue penetration device 2 2005
7,850,622 Tissue penetration device 3 2005
8,360,991 Tissue penetration device 0 2005
8,216,154 Tissue penetration device 0 2005
8,641,643 Sampling module device and method 0 2006
8,403,864 Method and apparatus for penetrating tissue 0 2006
8,690,796 Method and apparatus for penetrating tissue 0 2006
7,938,787 Method and apparatus for penetrating tissue 1 2006
7,909,777 Method and apparatus for penetrating tissue 1 2006
8,579,831 Method and apparatus for penetrating tissue 0 2006
8,079,960 Methods and apparatus for lancet actuation 29 2006
8,062,231 Method and apparatus for penetrating tissue 0 2006
7,874,994 Method and apparatus for penetrating tissue 0 2006
8,007,446 Method and apparatus for penetrating tissue 0 2006
8,435,190 Method and apparatus for penetrating tissue 0 2007
7,875,047 Method and apparatus for a multi-use body fluid sampling device with sterility barrier release 2 2007
8,430,828 Method and apparatus for a multi-use body fluid sampling device with sterility barrier release 0 2007
8,382,682 Method and apparatus for penetrating tissue 0 2007
7,914,465 Method and apparatus for penetrating tissue 0 2007
7,833,171 Method and apparatus for penetrating tissue 1 2007
7,731,729 Method and apparatus for penetrating tissue 0 2007
8,414,503 Methods and apparatus for lancet actuation 0 2007
7,976,476 Device and method for variable speed lancet 0 2007
7,988,644 Method and apparatus for a multi-use body fluid sampling device with sterility barrier release 1 2007
7,901,365 Method and apparatus for penetrating tissue 36 2007
8,496,601 Methods and apparatus for lancet actuation 0 2007
8,491,500 Methods and apparatus for lancet actuation 9 2007
7,909,778 Method and apparatus for penetrating tissue 0 2007
8,202,231 Method and apparatus for penetrating tissue 0 2007
7,988,645 Self optimizing lancing device with adaptation means to temporal variations in cutaneous properties 1 2007
8,282,577 Method and apparatus for lancet launching device integrated onto a blood-sampling cartridge 0 2007
7,981,056 Methods and apparatus for lancet actuation 2 2007
8,123,700 Method and apparatus for lancet launching device integrated onto a blood-sampling cartridge 3 2007
7,909,775 Method and apparatus for lancet launching device integrated onto a blood-sampling cartridge 0 2007
8,197,421 Method and apparatus for penetrating tissue 9 2007
8,157,748 Methods and apparatus for lancet actuation 1 2008
8,652,831 Method and apparatus for analyte measurement test time 0 2008
8,641,644 Blood testing apparatus having a rotatable cartridge with multiple lancing elements and testing means 0 2008
8,388,551 Method and apparatus for multi-use body fluid sampling device with sterility barrier release 0 2008
7,862,520 Body fluid sampling module with a continuous compression tissue interface surface 0 2008
8,784,335 Body fluid sampling device with a capacitive sensor 0 2008
8,372,016 Method and apparatus for body fluid sampling and analyte sensing 0 2008
7,892,185 Method and apparatus for body fluid sampling and analyte sensing 6 2008
8,360,992 Method and apparatus for penetrating tissue 0 2008
8,636,673 Tissue penetration device 0 2008
8,845,549 Method for penetrating tissue 0 2008
8,366,637 Method and apparatus for penetrating tissue 0 2008
8,562,545 Tissue penetration device 0 2008
8,337,421 Tissue penetration device 0 2008
8,235,915 Method and apparatus for penetrating tissue 0 2008
8,556,829 Method and apparatus for penetrating tissue 0 2009
8,702,624 Analyte measurement device with a single shot actuator 1 2010
8,439,872 Apparatus and method for penetration with shaft having a sensor for sensing penetration depth 0 2010
8,251,921 Method and apparatus for body fluid sampling and analyte sensing 0 2010
8,296,918 Method of manufacturing a fluid sampling device with improved analyte detecting member configuration 0 2010
8,206,319 Tissue penetration device 31 2010
8,221,334 Method and apparatus for penetrating tissue 0 2010
8,965,476 Tissue penetration device 0 2011
8,679,033 Tissue penetration device 0 2011
8,622,930 Tissue penetration device 0 2011
8,382,683 Tissue penetration device 1 2012
8,905,945 Method and apparatus for penetrating tissue 0 2012
8,945,910 Method and apparatus for an improved sample capture device 0 2012
9,034,639 Method and apparatus using optical techniques to measure analyte levels 0 2012
8,845,550 Tissue penetration device 0 2012
 
Saint Louis University (1)
* 5,891,054 Method for determining feeding the tube location 1 1997
 
Boehringer Mannheim GmbH (1)
* 5,536,470 Test carrier for determining an analyte in whole blood 12 1993
 
PERKINELMER INSTRUMENTS LLC (2)
* 6,629,039 Method and apparatus for impurity detection 1 2000
6,865,493 Method and apparatus for impurity detection 0 2003
 
LifeScan, Inc. (8)
* 5,306,623 Visual blood glucose concentration test strip 242 1991
* 5,418,142 Glucose test strip for whole blood 216 1992
5,563,042 Whole blood glucose test strip 240 1995
* 5,968,836 Fluid conducting test strip with transport medium 104 1995
5,843,692 Automatic initiation of a time interval for measuring glucose concentration in a sample of whole blood 195 1997
6,268,162 Reflectance measurement of analyte concentration with automatic initiation of timing 193 1999
6,986,869 Test strip for measuring analyte concentration over a broad range of sample volume 98 2002
6,949,221 Method of making a test strip for determining analyte concentration over a broad range of sample volumes 96 2002
* Cited By Examiner