Device for carrying out a heterogeneous reaction
First Claim
1. Device for determining a component of a sample liquid, said device comprising:
- a measurement chamber containing a first capillary action carrier and a first reagent, which is non-soluble in said sample liquid, adhering to said first capillary action carrier,a first pre-chamber containing a second capillary action carrier and a second reagent, which is soluble in said sample liquid, adhering to said second carrier, said second carrier being in bodily capillary contact with said first carrier, said first pre-chamber lying above said measurement chamber in a first working position of said device,a first application chamber having a first filling opening for introduction of said sample liquid and which, in said first working position of said device, lies above said first pre-chamber,a first capillary means connecting said first application chamber to said first pre-chamber,a waste chamber which lies below said measurement chamber in a second working position of said device,gravitational capillary means between said measurement chamber and said waste chamber and permitting flow of liquid from said measurement chamber to said waste chamber only under a predetermined gravitational force, anda second application chamber having a second filling opening for introduction of liquid, said second application chamber being connected via a second capillary means with a second pre-chamber, said second pre-chamber containing at least one indicator reagent on a third capillary action carrier, said second pre-chamber being connected via a third capillary means with a mixing chamber, said mixing chamber being connected via a fourth capillary means with said measurement chamber.
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Accused Products
Abstract
The present invention provides a device for carrying out a heterogeneous reaction for the determination of a component of a sample liquid on a first capillary action carrier present in a measurement chamber, to which carrier adheres at least one non-soluble reagent, wherein at least one soluble reagent is present on a second capillary action carrier in a first pre-chamber, which carrier is in capillary contact with the capillary action carrier in the measurement chamber, which first pre-chamber is connected via a first capillary with a first application chamber to be filled from outside through a filling opening and the measurement chamber is also connected with a waste chamber by a capillary arrangement through which can only flow a liquid under a predetermined gravitational force into the measurement chamber.
16 Citations
49 Claims
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1. Device for determining a component of a sample liquid, said device comprising:
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a measurement chamber containing a first capillary action carrier and a first reagent, which is non-soluble in said sample liquid, adhering to said first capillary action carrier, a first pre-chamber containing a second capillary action carrier and a second reagent, which is soluble in said sample liquid, adhering to said second carrier, said second carrier being in bodily capillary contact with said first carrier, said first pre-chamber lying above said measurement chamber in a first working position of said device, a first application chamber having a first filling opening for introduction of said sample liquid and which, in said first working position of said device, lies above said first pre-chamber, a first capillary means connecting said first application chamber to said first pre-chamber, a waste chamber which lies below said measurement chamber in a second working position of said device, gravitational capillary means between said measurement chamber and said waste chamber and permitting flow of liquid from said measurement chamber to said waste chamber only under a predetermined gravitational force, and a second application chamber having a second filling opening for introduction of liquid, said second application chamber being connected via a second capillary means with a second pre-chamber, said second pre-chamber containing at least one indicator reagent on a third capillary action carrier, said second pre-chamber being connected via a third capillary means with a mixing chamber, said mixing chamber being connected via a fourth capillary means with said measurement chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. Device for determining a component of a sample liquid, said device comprising:
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a measurement chamber containing a first capillary action carrier and a first reagent, which is non-soluble in said sample liquid, adhering to said first capillary action carrier, a first pre-chamber containing a second capillary action carrier and a second reagent, which is soluble in said sample liquid, adhering to said second carrier, said second carrier being in bodily capillary contact with said first carrier, said first pre-chamber lying above said measurement chamber in a first working of said device, a first application chamber having a first filling opening for introduction of said sample liquid and which, in said first working position of said device, lies above said first pre-chamber, a first capillary means connecting said first application chamber to said first pre-chamber, a waste chamber which lies below said measurement chamber in a second working position of said device, and gravitational capillary means between said measurement chamber and said waste chamber and permitting flow of liquid from said measurement chamber to said waste chamber only under a predetermined gravitational force, wherein said second working position is different from said first working position, said gravitational capillary means directly connecting said first pre-chamber with said waste chamber, whereby in said second working position, said liquid flows from said measurement chamber through said first capillary means and said gravitational capillary means. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
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Specification