Test strip card

Abstract

The invention belongs to external diagnosis field, and more specifically relates to a test strip card capable of filtering a sample and having a store medium (15) for storing detection information such as standard curve or coefficient parameter of a detected object. The test strip card comprises a card box (3) and a test strip (2). One end of the card box (3) is opened to form a test strip slot opening (12). The test strip (2) is a separated type plug structure of the card box (3). The store medium (15) is arranged on the card box (3). When the sample is detected, one end of a sample suction pad (4) of the test strip (2) inserted in the card box (3) stretches out of an opening end of the card box (3) for dipping and absorbing the sample, an apparatus having signal detection function collects characteristic signal of a detection strip (7) and a quality control strip (8) of the test strip (2), and combines the standard curve or coefficient parameter of the detected object read through the store medium (15) by the apparatus to obtain the concentration of a sample monocomponent or multiple components. The test strip card for detecting the sample has the characteristics of simple and rapid process, high sensitivity, objective result and flexible usage.

Description

technical field [0001] The invention belongs to the field of in vitro diagnosis, and specifically relates to an instrument that can filter samples by itself, has its own storage medium 15 to store the standard curve or coefficient parameters of the tested object, and can quickly detect a single sample in combination with an instrument with a signal detection function. Component or multi-component test strip cards. Background technique [0002] The immunochromatographic test strip technology mainly represented by colloidal gold test strips has been widely used in various aspects of immunoassay. The technique is simple and fast, with results within minutes. However, this technology has the following disadvantages: [0003] (1) Blood samples need to be separated from serum by equipment, and whole blood samples cannot be tested. Because: ① red blood cells in the whole blood sample will prevent the smooth migration of the reactant on the test strip. ②The color of red blood ce...

AI Technical Summary

Problems solved by technology

②The color of red blood cells (red) is similar or the same as the color displayed by colloidal gold (light red or purple), which will interfere with the judgment of test results

③Red blood cells interfere with many diagnostic assays, such as: in the detection of analytes, red blood cells may inhibit the binding between paired components of specific structures; red blood cells have enzyme activity, which may interfere with the generation of detection signals

Utility model patent No. ZL03217482.9 discloses a technical scheme of adding a red blood cell filter membrane between the colloidal gold conjugate of the colloidal gold test strip and the nitrocellulose membrane in an attempt to overcome the above-mentioned interference of red blood cells. The disadvantage is that : This technical measure does not begin to overcome from the "source" component (sample pad 4) of the test strip, but introduces the red blood cell filter membrane between the marking pad 6 and the analysis membrane 9 of the colloidal gold test strip (i.e. "between the colloidal gold conjugate and the nitrocellulose membrane" of the test strip described in the patent), this "improved" scheme of filtering red blood cells from the "downstream" component of the test strip is not effective in overcoming the red blood cells on the marker pad. 6 Interference in the binding reaction between the coating (gold standard-antigen / antibody) and the target analyte from the suction pad 4!

[0004] (2) It can only detect samples qualitatively, but cannot perform quantitative detection on samples, let alone realize multi-component quantitative detection of samples

RFID tags are small in size, large in information storage capacity, and require no manual intervention for identification. They are also an ideal means of information access and identification, but few people use them in the field of biomedical testing.

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