A reagent strip detection device and detection method that utilizes manual insertion to complete detection

Abstract

The present invention relates to the field of medical equipment and instruments, in particular to a reagent strip detection device and detection method that uses manual insertion to complete detection, including a reagent strip, a capacitive sensor, a detection mechanism base, a light source module, a detection module, and a capacitive sensor signal processing circuit and control circuit, the capacitive grid sensor includes a moving grid, a fixed grid and a signal receiving plate; the reagent strip is provided with a sample drop port and a detection window, and the movable grid is arranged on the outer side of the reagent strip parallel to the sample drop port and the detection window The fixed grid and the signal receiving board are arranged on the inner side of the base of the detection mechanism and connected with the signal processing circuit of the capacitance grid sensor. During the process of manually inserting the reagent strip, the control circuit synchronously collects the position signal output by the capacitive sensor signal processing circuit and the light intensity signal output by the photodetector preamplifier circuit, thereby establishing a position-signal corresponding curve. The device does not require a precision motor scanning mechanism, which simplifies the structure of the matching reagent strip detection equipment, reduces costs, and expands the use scene.

Description

technical field [0001] The invention relates to the field of medical equipment and instruments, in particular to a reagent strip detection device and a detection method which can be detected by manual insertion. Background technique [0002] Paper-based detection reagent strips are common in vitro diagnostic (IVD) carriers, especially used in POCT (Point-of-care Testing) devices. The common types are colored nano-microspheres (such as colloidal gold, latex microspheres, etc.) reagent strips and fluorescent materials (such as rhodamine, lanthanides, etc.) reagent strips. Ordinary paper-based reagent strips are sprayed with C-line and T-line (Control line, Test line), and the properties of the sample can be determined through the reaction of C-line and T-line (color development or fluorescence) as a reference for further diagnosis. With the increasing requirements for accurate quantification in the field of in vitro diagnostics, it is no longer enough to rely solely on the de...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the above-mentioned problems in the prior art that paper-based detection requires a precision motor scanning mechanism, which increases costs and limits usage scenarios, and provides a reagent strip detection device and detection method suitable for manual insertion to complete detection

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