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Whole blood lactic acid/ blood sugar test strip and integral blood taking needle

A technology of test strips and blood lactic acid, applied in biological testing, diagnostic recording/measurement, measuring devices, etc., can solve the problems of difficult large-scale mass production, poor detection stability, and difficult to use, etc., to achieve easy mass production, convenient production, low cost effect

Active Publication Date: 2008-11-19
江苏英特神斯科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The test strip of the present invention can overcome the shortcomings of existing whole blood lactic acid electrochemical detection sensors, such as poor detection stability, difficulty in use, high cost, and difficulty in large-scale mass production, and has simple design, low cost, easy processing and production, and can be simultaneously measured Lactic acid concentration, blood glucose concentration; the integrated blood collection needle used with the test strip, in addition to the function of blood collection, also has the function of concealed packaging test strips

Method used

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  • Whole blood lactic acid/ blood sugar test strip and integral blood taking needle
  • Whole blood lactic acid/ blood sugar test strip and integral blood taking needle
  • Whole blood lactic acid/ blood sugar test strip and integral blood taking needle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] This embodiment is an electrochemical biosensor, specifically a whole blood lactate / glucose multifunctional test strip.

[0035] figure 1 It is a schematic diagram of the structural decomposition of the test strip. Such as figure 1 , figure 2 and image 3 , the whole blood lactate / glucose multifunctional test strip of the present invention includes test electrode sheets, cover sheets 7a, 7b and reaction reagent layers 8a, 8b.

[0036]The test electrode sheet includes an insulating substrate 4, on which a pair of thin film conductive strips 5a, 5b and 5c, 5d are respectively formed on the front and back sides of the insulating substrate 4 along the length direction by a method of shielding and a metal thin film deposition process; The conductive strips are parallel to each other. One end of the conductive strip is the input end. (Conductive strips can also use screen printing method to print electrodes with silver paste or stone black carbon paste.) There is an in...

Embodiment 2

[0041] This embodiment provides a mass-produced whole blood lactate / glucose multifunctional test strip.

[0042] The multifunctional test strip of the present embodiment has the same structure as that of embodiment 1, including insulating substrate 4, film conductive strips 5a, 5b, 5c and 5d, insulating gaskets 6a, 6b, 6c and 6d and cover sheets 7a, 7b, They respectively form capillary cavities 9 a and 9 b with both ends opened on both sides of the insulating substrate 4 . One end of the film conductive strip is the input end.

[0043] In mass production, use three equal-length and equal-width sheets of insulating organic material, or three rolls of equal-width organic insulating sheets (films). The size of each sheet (roll) is convenient for processing and as much as possible. A single test strip unit is suitable. Among them, at least two pieces (rolls) are transparent materials, which are used as the production material of the cover sheet. Among them, it is necessary to m...

Embodiment 3

[0047] This example is an integrated blood collection needle packaged with a whole blood lactate / glucose test strip.

[0048] Integrated blood collection needles, such as Figure 4 , Figure 5 As shown, it includes a whole blood lactate / glucose test strip 1 , a needle stick 2 and a blood collection needle tip 3 .

[0049] Such as Figure 6 , Figure 7 As shown, the needle bar 2 is formed by injection molding or compression molding of organic materials, and its diameter is equal to the width of the whole blood lactate / glucose test strip 1. One end of the needle bar 2 has a mounting hole 11, and the blood collection needle point 3 is installed in the hole. 3 is an ordinary spear-shaped blood collection needle point, and the spear-shaped blood collection needle point 3 is inserted into the installation hole 11 and then fixed. The other end of the needle bar 2 is a U-shaped slot 10 open on three sides, the depth of the U-shaped slot 10 is the same as the length of the whole bl...

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Abstract

The invention provides a whole blood lactate / blood sugar test strip and an integrated blood taking needle packaging the test strip. The test strip is an electrochemical biosensor comprising a testing electrode plate, a cover plate and a reaction reagent layer, a capillary tube cavity body with two open ends is formed between the testing electrode plate and the cover plate, and the reaction reagent layer is formed on the inner wall of the capillary tube cavity body. The integrated blood taking needle for packaging the test strip has a blood taking needle point arranged on one end of a needle bar, and the other end thereof is provided with a U-shaped slot, and the test strip is mounted in the U-shaped slot. The test strip of the invention can automatically soak up trace amount of blood sample and complete the test process of blood lactate / blood sugar in a short time; and the test strip is packaged in the blood taking needle, so the test strip can be taken out for test after collecting the blood sample. The test strip and the blood taking needle of the invention have advantages of providing two detection indexes of blood lactate and blood sugar by one sampling; simple design, low cost, easy processing and making, easy batch production, and convenient carrying and usage.

Description

technical field [0001] The invention belongs to the technical field of biological detection and relates to an electrochemical biosensor, in particular to a test strip and an integrated blood collection needle for quantitative detection of whole blood lactate / glucose. Background technique [0002] The routine detection of lactic acid and glucose in blood is carried out on a large blood gas analyzer, which requires a large amount of blood, takes a long time, and costs a lot, so it is suitable for large-scale hospitals. In recent years, various types of biosensors utilizing the specific catalytic action possessed by enzymes have been developed. This type of biosensor does not require any pretreatment before detection, and can accurately measure the contents of lactic acid and blood glucose in whole blood samples in a short time. The designed biosensor is easy to manufacture in batches, low in cost, suitable for large-scale industrial production, and can be applied to hospitals...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/50G01N27/416A61B5/157
Inventor 张盛友曹辉宇何野徐波
Owner 江苏英特神斯科技有限公司
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