TWM493051U - Improved testing sheet - Google Patents

Description

Test strip improvement

This creation is about the improvement of a test strip, especially a test strip that can have better detection accuracy and stability.

With the advancement of medical technology, the average life expectancy of Chinese people has been prolonged, making chronic diseases gradually replace acute infectious diseases and become one of the main causes of death among Chinese people. Among them, diabetes is the chronic disease with the highest prevalence rate among Chinese people.

If diabetes is not diagnosed early and treated early, diabetes will cause many complications, such as retinopathy, neurological and vascular disease and kidney disease, and even cause blinking, amputation, high blood pressure, stroke and even death. Therefore, how to track and manage the patient's blood sugar and blood pressure for a long time and regularly, control the condition of diabetes, and prevent or delay the occurrence of other complications has become an important issue.

In order to improve the patient's convenience in monitoring blood glucose, many simple blood glucose detecting devices have been developed for patients to regularly check blood glucose levels. However, the blood glucose detecting device needs to be used together with the bioassay sheet to measure the blood glucose concentration. Therefore, the cost, wear and tear, detection accuracy, and measurement time of the bioassay sheet become quite important product indicators.

The currently used carbon ink bioassay sheet is sequentially stacked with a substrate, a conductive silver paste layer, a conductive carbon ink layer, a protective layer and a biomaterial layer from bottom to top. However, the presence of the conductive carbon ink layer compresses the thickness of the conductive silver paste layer, The carbon ink bioassay sheet is liable to cause problems such as uneven or low conductivity, and it is difficult to control the detection error value within ±15%. Moreover, the carbon ink bioassay sheet is susceptible to moisture after opening, which causes the detection error value to become large, which affects the detection accuracy.

Therefore, in order to overcome the defects of the carbon ink bioassay sheet, it is urgent to develop a novel bioassay sheet.

In view of this, the present invention provides a self-testing test piece, especially a test piece which can have better detection accuracy and stability, and is its main purpose.

In order to achieve the above, the test strip of the present invention comprises at least a substrate and a circuit metal pattern assembly formed on the substrate, which has a first metal stacked sequentially from bottom to top. a pattern layer, a second metal pattern layer, a third metal pattern layer and a fourth metal pattern layer, the second metal pattern layer covering the upper surface of the first metal pattern layer, and the third metal pattern layer Covering the upper surface of the second metal pattern layer and covering the side surfaces of the first and second metal pattern layers, the second metal pattern layer is further disposed to further protect the second metal pattern layer under the second metal pattern layer to increase Corrosion resistance and drug resistance, and it has the advantages of better detection accuracy, stability, yield and short measurement time, thus improving the application value of the bioassay sheet, and the test strip of the creation is not An additional conductive carbon ink layer is required to simplify the structure of the bioassay sheet.

According to the above technical feature, the substrate is polyethylene terephthalate (PET).

According to the above technical feature, the first metal pattern layer is palladium Ion or Group 8 metal.

According to the above technical feature, the fourth metal pattern layer is made of at least one of gold, silver, copper, nickel, titanium, and palladium.

According to the above technical feature, the substrate forms a modified surface, and the line metal pattern assembly is disposed on the modified surface.

According to the above technical feature, the second metal pattern layer is made of at least one of a phosphorus-containing nickel alloy or copper, and the third metal pattern layer is a phosphorus-containing nickel alloy.

The phosphorus content of the third metal pattern layer is greater than the phosphorus content of the second metal pattern layer.

The third metal pattern layer has a phosphorus content of 6 to 12% by weight, and the second metal pattern layer has a phosphorus content of 0 to 5% by weight.

10‧‧‧Test strips

11‧‧‧Substrate

111‧‧‧Modified surface

12‧‧‧Line metal pattern assembly

121‧‧‧First metal pattern layer

122‧‧‧Second metal pattern layer

123‧‧‧ Third metal pattern layer

124‧‧‧fourth metal pattern layer

The first picture is the first schematic diagram of the test piece in this creation.

The second picture is the second schematic diagram of the test strip in this creation.

The third picture is the third schematic diagram of the test piece in this creation.

The fourth picture is the fourth schematic diagram of the test strip in the creation.

The fifth picture is the fifth schematic diagram of the test piece in this creation.

The characteristics of this creation can be clearly understood by referring to the detailed description of the drawings and the examples.

As shown in the first to fourth schematic views of the creative test strips, the test strip 10 of the present invention includes at least: a substrate 11 And the line metal pattern assembly 12.

The substrate 11 is made of an insulating material, and may be, for example, polyethylene terephthalate (PET).

The circuit metal pattern assembly 12 is formed on the substrate 11 and includes at least: first, second, third, and fourth metal pattern layers 121, 122, 123, and 124; wherein the first metal pattern layer 121 is Located on the substrate 11, the first metal pattern layer 121 may have a plurality of metal bodies disposed at intervals.

The second metal pattern layer 122 is stacked on the first metal pattern layer 121; the third metal pattern layer 123 is stacked on the second metal pattern layer 122, and the third metal pattern layer 123 is Covering the upper surface of the second metal pattern layer 122 and covering the side surfaces of the first and second metal pattern layers 121 and 122 can provide a protective effect on the second metal pattern layer 122 below.

The fourth metal pattern layer 124 is overlaid on the third metal pattern layer 123, and the fourth metal pattern layer 124 covers the upper surface of the third metal pattern layer 123 and covers the third metal. The side surface of the pattern layer 123.

The first metal pattern layer 121 is made of palladium ions or a Group 8 metal; the second metal pattern layer 122 is made of at least one of a phosphorus-containing nickel alloy or copper, and the third metal pattern layer 123 is formed. The phosphorus-containing nickel alloy is used, and the phosphorus content of the third metal pattern layer 123 is greater than the phosphorus content of the second metal pattern layer 122. For example, the phosphorus content of the second metal pattern layer 122 is 0 to 5 wt%, the third metal pattern layer 123 has a phosphorus content of 6 to 12% by weight; the fourth metal pattern layer 124 is at least one of gold, silver, copper, nickel, titanium, and palladium. Made.

Here, the line metal pattern assembly 12 is used to provide The material detecting material reacts with the object to be detected in the region, and the current change is detected by the line metal pattern assembly 12, and can be further connected to a biological detecting device to transmit current changes and background noise to A biological detection device (not shown) is used to obtain a biological test result.

The fourth metal pattern layer 124 of the outermost layer of the line metal pattern assembly 12 is used as the working surface for detecting the current. Preferably, the fourth metal pattern layer 124 is suitable for fixing the biological detection material or the object to be detected. The material (for example, gold) is stable in the measurement by the electrochemical analysis method, and the third metal pattern layer 123 and the fourth metal pattern layer 124 of the present invention are completely coated on the first and second metal pattern layers 121, 122, that is, the first and second metal pattern layers 121, 122 are not exposed to the bio-detecting material or the object to be detected, so that the bio-detecting material or the object to be detected can be firmly fixed to the fourth metal pattern layer. 124, which can increase the overall sensing effect, and has better detection accuracy and stability; and the third metal pattern layer can be used to protect the second metal pattern layer underneath to increase corrosion resistance and resistance, further Increase the accuracy and stability of the test strips.

In addition, the test strips of this creation are basically a carrier, so any liquid can be tested, which may include: blood sugar, cholesterol, uric acid, influenza, bird flu, enterovirus, pesticide residues, beverage plasticizer or Some fast screening of heavy metal residues depends on the choice of enzyme or detection fluid and the design of the wafer line.

Furthermore, the substrate 11 forms a modified surface 111, as shown in the fourth figure, and the line metal pattern assembly 12 is disposed on the modified surface 111, and the modified surface 111 can be chemically etched from the surface of the substrate. Or physically, the modified surface 111 can increase the adhesion of the substrate to the line metal pattern assembly 12; of course, in the embodiment shown, the modified surface 111 can have a plurality of concave surfaces. Convex structure.

In summary, the author provides a better and feasible test strip, and submits a new patent application according to law; the technical content and technical features of the present invention are disclosed above, but those skilled in the art may still be based on the present creation. The disclosure reveals various substitutions and modifications that do not depart from the spirit of the creation of the case. Therefore, the scope of the present invention is not limited to the embodiments disclosed, but includes various alternatives and modifications that do not depart from the present invention and are covered by the following claims.

10‧‧‧Test strips

11‧‧‧Substrate

12‧‧‧Line metal pattern assembly

121‧‧‧First metal pattern layer

122‧‧‧Second metal pattern layer

123‧‧‧ Third metal pattern layer

124‧‧‧fourth metal pattern layer

Claims (10)

A test strip improvement comprises at least one substrate and a line metal pattern assembly on the substrate, and the line metal pattern assembly comprises at least: a first metal pattern layer on the substrate; a second a metal pattern layer is stacked on the first metal pattern layer; a third metal pattern layer is stacked on the second metal pattern layer, and the third metal pattern layer covers the second metal pattern a surface above the layer, and a side surface covering the first and second metal pattern layers; and a fourth metal pattern layer stacked on the third metal pattern layer, and the fourth metal pattern layer is covered And a surface of the third metal pattern layer and a side surface of the third metal pattern layer. The test strip according to claim 1 is improved, wherein the substrate is polyethylene terephthalate (PET). The test strip improvement according to claim 1, wherein the first metal pattern layer is a palladium ion or a Group 8 metal. The test strip improvement according to any one of claims 1 to 3, wherein the fourth metal pattern layer is made of at least one of gold, silver, copper, nickel, titanium, and palladium. The test strip improvement according to any one of claims 1 to 3, wherein the substrate forms a modified surface, and the line metal pattern assembly is disposed on the modified surface. The test strip improvement according to any one of claims 1 to 3, wherein the second metal pattern layer is made of at least one of a phosphorus-containing nickel alloy or copper, and the third metal pattern layer is It is a phosphorus-containing nickel alloy. The test strip improvement according to claim 6, wherein the phosphorus content of the third metal pattern layer is greater than the phosphorus content of the second metal pattern layer. The test strip improvement according to claim 7, wherein the third metal pattern layer has a phosphorus content of 6 to 12% by weight. The test strip improvement according to claim 7, wherein the second metal pattern layer has a phosphorus content of 0 to 5 weight percent. A test strip improvement comprises at least one substrate and a line metal pattern assembly on the substrate, and the line metal pattern assembly comprises at least: a first metal pattern layer on the substrate; a second a metal pattern layer is stacked on the first metal pattern layer, the second metal pattern layer is made of at least one of a phosphorus-containing nickel alloy or copper, and the phosphorus content is 0-5 weight. a third metal pattern layer is stacked on the second metal pattern layer, and the third metal pattern layer covers the upper surface of the second metal pattern layer, and covers the first and second a side surface of the metal pattern layer, the third metal pattern layer is a phosphorus-containing nickel alloy, and the phosphorus content thereof is 6 to 12% by weight; and a fourth metal pattern layer is stacked on the third metal pattern And a fourth metal pattern layer covering the upper surface of the third metal pattern layer and covering the side surface of the third metal pattern layer.