Photochemical analysis test strip

Abstract

The utility model provides a photochemical analysis test strip which comprises a test strip body, a liquid suction port, a test area and an air hole are arranged on the test strip body, the test area is respectively communicated with the liquid suction port and the air hole, the test area is arranged on a first side of the test strip body, and the liquid suction port is communicated with the air hole. The liquid suction port and the air hole are formed in a second side, far away from the first side, of the test strip body. When the photochemical analysis test strip is matched with an optical detection instrument, only the first side of the test strip body needs to be placed in the optical detection instrument, and the liquid suction port and the air hole formed in the second side of the test strip body cannot be placed in the optical detection instrument, so that the situation that the optical detection instrument is polluted by a blood sample and the accuracy of a detection result is influenced is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of body fluid analysis technology, and in particular to a photochemical analysis test strip. Background Technology

[0002] Photochemical analysis strips are rapid diagnostic tools based on optical detection principles. They work by reacting specific chemical reagents loaded on the strips with the target analyte to produce color changes, fluorescence, or chemiluminescence signals. These signals are then combined with optical detection instruments (such as spectrophotometers and fluorescence detectors) to achieve detection and analysis.

[0003] For example, Chinese patent application CN119574538A discloses a blood lipid test card based on photochemical principles, including a card body with a sample application port, a calibration area, and at least one test area. The sample application port is connected to both the calibration area and the test area, and both the calibration area and the test area have vents connecting to the outside. When this blood lipid test card is used with an optical detection instrument, the test area needs to be placed inside the optical detection instrument. Because the vents are adjacent to the test area, blood samples may overflow through the vents, contaminating the internal optical components of the instrument and thus affecting the accuracy of the test results.

[0004] Therefore, existing technologies still need to be improved and developed. Utility Model Content

[0005] The purpose of this invention is to provide a photochemical analysis test strip that addresses the shortcomings and deficiencies of existing technologies.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] This utility model provides a photochemical analysis test strip, including a test strip body, on which a liquid absorption port, a detection area and an air hole are provided. The detection area is connected to the liquid absorption port and the air hole respectively. The detection area is located on a first side of the test strip body, and the liquid absorption port and the air hole are located on a second side of the test strip body away from the first side.

[0008] With the above settings, when the photochemical analysis strip is used with the optical detection instrument, only the first side of the strip body needs to be placed inside the optical detection instrument, while the liquid absorption port and air hole on the second side of the strip body will not be placed inside the optical detection instrument. This effectively avoids blood sample contamination of the optical detection instrument and its impact on the accuracy of the test results.

[0009] According to the above scheme, the test strip body is also provided with a breathable zone, and the liquid absorption port, detection zone and breathable zone are connected in sequence; the air hole is located above the breathable zone and is connected to the breathable zone.

[0010] According to the above scheme, the liquid suction port is connected to the detection area through the liquid suction channel, and the detection area is connected to the air permeable area through the air permeable channel.

[0011] The suction channel creates a siphon effect between the suction port and the detection zone, causing the blood sample entering the suction port to flow rapidly into the detection zone due to the siphon effect; the air permeation channel creates a siphon effect between the detection zone and the air permeation zone, causing the blood sample entering the detection zone to flow rapidly into the air permeation zone due to the siphon effect.

[0012] According to the above scheme, the aspiration channel is connected to the first end of the detection zone, and the permeable channel is connected to the second end of the detection zone, with the first and second ends of the detection zone positioned opposite each other. This arrangement ensures that the blood sample flowing into the detection zone fills the zone before flowing out through the permeable channel.

[0013] According to the above scheme, the area of ​​the ventilated zone is smaller than the area of ​​the detection zone. The ventilated zone facilitates air venting, and the user can determine whether the detection zone is full of blood sample simply by observing the blood sample entering the ventilated zone.

[0014] According to the above scheme, the test strip body includes a bottom plate, a double-sided adhesive layer and a top plate arranged sequentially from bottom to top; the air hole is opened on the top plate, and a notch and a first through hole are opened on the double-sided adhesive layer. The notch, the bottom plate and the top plate form the liquid absorption port, and the first through hole, the bottom plate and the top plate form the detection area.

[0015] According to the above scheme, the double-sided adhesive layer is further provided with a first connecting groove, a second connecting groove, and a second through hole. The notch, the first connecting groove, the first through hole, the second connecting groove, and the second through hole are connected in sequence. The first connecting groove, the bottom plate, and the top plate form a liquid absorption channel. The second connecting groove, the bottom plate, and the top plate form a permeable air channel. The second through hole, the bottom plate, and the top plate form a permeable air zone.

[0016] By creating sequentially connected notches, a first connecting groove, a first through hole, a second connecting groove, and a second through hole on the double-sided adhesive layer, and creating air holes on the top plate, the bottom plate and the top plate are then bonded to both sides of the double-sided adhesive layer to form the test strip body, which simplifies the production process.

[0017] According to the above scheme, the bottom plate and top plate are set as transparent plates, and the double-sided adhesive layer is set as an opaque layer.

[0018] According to the above scheme, the suction port is located on the side wall of the second side of the test strip body. With this arrangement, the suction port on the side wall of the second side of the test strip body can be aligned with the suction position for suction, thus improving the convenience of suction.

[0019] According to the above scheme, a reactive enzyme layer is coated in the detection area. The reactive enzyme layer includes a reactive enzyme that reacts with the blood sample.

[0020] The beneficial effects of this utility model are as follows:

[0021] This invention places the detection area on the first side of the test strip body, and the liquid absorption port and air hole on the second side of the test strip body away from the first side. This allows the photochemical analysis test strip to be used with an optical detection instrument only by placing the first side of the test strip body into the optical detection instrument, while the liquid absorption port and air hole on the second side of the test strip body are not placed into the optical detection instrument. This effectively avoids blood sample contamination of the optical detection instrument and its impact on the accuracy of the detection results. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 ; Figure 1 The dashed line represents a line that is not visible within the test strip itself;

[0023] Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 ;

[0024] Figure 3 yes Figure 2 Enlarged structural diagram of section A in the middle;

[0025] Figure 4 This is an exploded view of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the double-sided adhesive layer described in this utility model;

[0027] Figure 6 This is a schematic diagram of the photochemical analysis test strip described in this utility model being used in conjunction with an optical detection instrument; Figure 6 The dashed lines represent lines that are not visible within the test strip itself or when placed inside an optical testing instrument.

[0028] In the diagram: 1. Test strip body; 11. Liquid suction port; 12. Liquid suction channel; 13. Detection area; 14. Air permeable channel; 15. Air permeable area; 2. Base plate; 3. Double-sided adhesive layer; 31. Notch; 32. First connecting groove; 33. First through hole; 34. Second connecting groove; 35. Second through hole; 4. Top plate; 41. Air hole; 5. Optical testing instrument. Detailed Implementation

[0029] The technical solution of this utility model will be described below with reference to the accompanying drawings and embodiments.

[0030] like Figure 1-6As shown, this utility model provides a photochemical analysis test strip, including a test strip body 1. The test strip body 1 is provided with a liquid absorption port 11, a detection area 13 and an air hole 41. The detection area 13 is connected to the liquid absorption port 11 and the air hole 41 respectively. The detection area 13 is located on the first side of the test strip body 1, and the liquid absorption port 11 and the air hole 41 are located on the second side of the test strip body 1 away from the first side.

[0031] With the above settings, when the photochemical analysis test strip is used with the optical detection instrument 5, only the first side of the test strip body 1 needs to be placed inside the optical detection instrument 5, while the liquid absorption port 11 and the air hole 41 located on the second side of the test strip body 1 will not be placed inside the optical detection instrument 5, thereby effectively avoiding blood sample contamination of the optical detection instrument 5 and affecting the accuracy of the detection results.

[0032] Furthermore, the test strip body 1 is also provided with an air-permeable zone 15, and the liquid absorption port 11, the detection zone 13 and the air-permeable zone 15 are connected in sequence; the air hole 41 is located above the air-permeable zone 15 and is connected to the air-permeable zone 15.

[0033] Furthermore, the suction port 11 is connected to the detection area 13 through the suction channel 12, and the detection area 13 is connected to the air-permeable area 15 through the air-permeable channel 14.

[0034] The suction channel 12 establishes a siphon effect between the suction port 11 and the detection zone 13, so that the blood sample entering the suction port 11 flows rapidly into the detection zone 13 due to the siphon effect; the air permeation channel 14 establishes a siphon effect between the detection zone 13 and the air permeation zone 15, so that the blood sample entering the detection zone 13 flows rapidly into the air permeation zone 15 due to the siphon effect.

[0035] Furthermore, the aspiration channel 12 is connected to the first end of the detection zone 13, and the permeable channel 14 is connected to the second end of the detection zone 13, with the first and second ends of the detection zone 13 positioned opposite each other. This arrangement ensures that the blood sample flowing into the detection zone 13 fills the zone before flowing out through the permeable channel 14.

[0036] Furthermore, the area of ​​the ventilated zone 15 is smaller than the area of ​​the detection zone 13. The ventilated zone 15 facilitates air venting, and the user can determine that the detection zone 13 is filled with blood sample simply by observing the blood sample entering the ventilated zone 15.

[0037] Furthermore, the test strip body 1 includes a base plate 2, a double-sided adhesive layer 3, and a top plate 4 arranged sequentially from bottom to top; the air hole 41 is formed on the top plate 4, and the double-sided adhesive layer 3 has a notch 31 and a first through hole 33. The notch 31, the base plate 2, and the top plate 4 form the liquid absorption port 11, and the first through hole 33, the base plate 2, and the top plate 4 form the detection area 13.

[0038] Furthermore, the double-sided adhesive layer 3 is also provided with a first connecting groove 32, a second connecting groove 34, and a second through hole 35. The notch 31, the first connecting groove 32, the first through hole 33, the second connecting groove 34, and the second through hole 35 are connected in sequence. The first connecting groove 32, together with the bottom plate 2 and the top plate 4, forms a liquid absorption channel 12. The second connecting groove 34, together with the bottom plate 2 and the top plate 4, forms a permeable air channel 14. The second through hole 35, together with the bottom plate 2 and the top plate 4, forms a permeable air zone 15.

[0039] A notch 31, a first connecting groove 32, a first through hole 33, a second connecting groove 34, and a second through hole 35 are sequentially connected on the double-sided adhesive layer 3. An air hole 41 is opened on the top plate 4. Then, the bottom plate 2 and the top plate 4 are respectively bonded to the two sides of the double-sided adhesive layer 3 to form the test strip body 1, which helps to simplify the production process.

[0040] Furthermore, the bottom plate 2 and the top plate 4 are made of transparent plates, and the double-sided adhesive layer 3 is made of opaque layer.

[0041] Furthermore, the suction port 11 is located on the side wall of the second side of the test strip body 1. With the above arrangement, the suction port 11 on the side wall of the second side of the test strip body 1 can be aligned with the suction position to perform suction, thus improving the convenience of suction.

[0042] Furthermore, the detection area 13 is coated with a reactive enzyme layer (not shown in the figure). The detection area 13 is coated with a reactive enzyme layer. The reactive enzyme layer 13 includes a reactive enzyme that reacts with the blood sample.

[0043] In use, the photochemical analysis test strip of this invention is positioned with the suction port 11 on the second side wall of the test strip body 1 aligned with the suction position. Blood sample enters the test strip body 1 through the suction port 11. Under the siphon effect, the blood sample and gas within the test strip body 1 flow along the suction channel 12, the detection zone 13, and the permeable channel 14 to the permeable zone 15. Gas is then discharged to the outside through the pore 41. At this point, the detection zone 13 is filled with blood sample. Figure 6 As shown, the first side of the test strip body 1 is then placed inside the optical detection instrument 5 for detection.

[0044] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A photochemical analysis strip, comprising a strip body (1), wherein the strip body (1) is provided with a liquid absorption port (11), a detection area (13), and pores (41), wherein the detection area (13) is respectively connected to the liquid absorption port (11) and the pores (41), characterized in that, The detection area (13) is located on the first side of the test strip body (1), and the liquid suction port (11) and the air hole (41) are located on the second side of the test strip body (1) away from the first side.

2. The photochemical analysis test strip according to claim 1, characterized in that, The test strip body (1) is also provided with a breathable zone (15), and the liquid suction port (11), the detection zone (13) and the breathable zone (15) are connected in sequence; the air hole (41) is located above the breathable zone (15) and is connected to the breathable zone (15).

3. The photochemical analysis test strip according to claim 2, characterized in that, The suction port (11) is connected to the detection area (13) through the suction channel (12), and the detection area (13) is connected to the air-permeable area (15) through the air-permeable channel (14).

4. The photochemical analysis test strip according to claim 3, characterized in that, The liquid suction channel (12) is connected to the first end of the detection area (13), and the air permeation channel (14) is connected to the second end of the detection area (13). The first end and the second end of the detection area (13) are arranged opposite to each other.

5. The photochemical analysis test strip according to claim 2, characterized in that, The area of ​​the breathable zone (15) is smaller than the area of ​​the detection zone (13).

6. The photochemical analysis test strip according to any one of claims 1-5, characterized in that, The test strip body (1) includes a bottom plate (2), a double-sided adhesive layer (3), and a top plate (4) arranged sequentially from bottom to top; The air hole (41) is opened on the top plate (4), and the double-sided adhesive layer (3) has a notch (31) and a first through hole (33). The notch (31), the bottom plate (2) and the top plate (4) form the liquid suction port (11), and the first through hole (33), the bottom plate (2) and the top plate (4) form the detection area (13).

7. The photochemical analysis test strip according to claim 6, characterized in that, The double-sided adhesive layer (3) is also provided with a first connecting groove (32), a second connecting groove (34) and a second through hole (35), and the notch (31), the first connecting groove (32), the first through hole (33), the second connecting groove (34) and the second through hole (35) are connected in sequence; The first connecting groove (32) forms a liquid suction channel (12) with the bottom plate (2) and the top plate (4), the second connecting groove (34) forms a permeable air channel (14) with the bottom plate (2) and the top plate (4), and the second through hole (35) forms a permeable air zone (15) with the bottom plate (2) and the top plate (4).

8. The photochemical analysis test strip according to claim 6, characterized in that, The bottom plate (2) and top plate (4) are made of transparent plates, and the double-sided adhesive layer (3) is made of opaque layer.

9. The photochemical analysis test strip according to claim 1, characterized in that, The suction port (11) is located on the side wall of the second side of the test strip body (1).

10. The photochemical analysis test strip according to claim 1, characterized in that, The detection area (13) is coated with a reactive enzyme layer.

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