Test card for an optical or electrical determination of the concentration of a substance in a liquid
First Claim
1. A strip-shaped test card for an optical or electrical determination of the concentration of a substance in a liquid, especially a body liquid, with a plurality of identical test sections (12) connected to one another and arranged so as to follow one another in the longitudinal direction of the test card (10), characterized in that the test card (10) has one reaction layer (16) extending along the length of the test card and one cover layer (20) extending along the length of the test card, said reaction layer and cover layer being joined to one another along the length of the test card in overlying relationship and being configured to define the identical test sections, the cover layer having for each of said test sections (12) a drop application opening (22) for the reception of a drop of the liquid to be investigated.
1 Assignment
0 Petitions
Accused Products
Abstract
A test card for use with a measuring device for evaluating the concentration of a substance in a liquid, such as a substance in a body liquid, is made up of a number of layers of material preferably capable of being united with one another in a continuous process as the layers are unrolled from associated supply rolls. Each test card includes a plurality of individually usable test sections connected with one another and arranged in succession along the longitudinal direction of the card. The layers of material making up the card include at least a reaction layer and an overlying cover layer with the cover layer having a drop application opening in each test section for receiving a drop of the liquid to be accommodated. A distribution layer and a carrier layer of material may also be included in the card with the carrier layer in each test section having a measuring opening registering with the drop application opening, and lines of weakening are provided between neighboring test sections to allow easy removal of a used test section from the remaining ones.
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Citations
37 Claims
- 1. A strip-shaped test card for an optical or electrical determination of the concentration of a substance in a liquid, especially a body liquid, with a plurality of identical test sections (12) connected to one another and arranged so as to follow one another in the longitudinal direction of the test card (10), characterized in that the test card (10) has one reaction layer (16) extending along the length of the test card and one cover layer (20) extending along the length of the test card, said reaction layer and cover layer being joined to one another along the length of the test card in overlying relationship and being configured to define the identical test sections, the cover layer having for each of said test sections (12) a drop application opening (22) for the reception of a drop of the liquid to be investigated.
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25. A strip-shaped test card for an optical or electrical determination of the concentration of a substance in a liquid, especially a body liquid, with a plurality of test sections (12) connected to one another and arranged so as to follow one another in the longitudinal direction of the test card (10), characterized in that the test card (10) has a reaction layer (16) and a cover layer (20) with the cover layer having for each of said test sections (12) a drop application opening (22) for the reception of a drop of the liquid to be investigated, and
in that information is provided on the card identifying the card and/or concerning the carrying out of the tests to be made.
Specification