Reagent card and detection system

Abstract

The reagent card comprises a shell and detection test paper, a test paper cavity is formed in the shell, a sample adding hole and an observation window are formed in the shell, the observation window is located on one side of the sample adding hole, the sample adding hole and the observation window are both communicated with the test paper cavity, and the detection test paper is contained in the test paper cavity; wherein a light absorption part and a bearing part used for bearing an information carrier are formed on the shell, the color of the bearing part is different from that of the light absorption part, and the light absorption part is annularly arranged on the outer side of the observation window and used for absorbing detection light spots irradiated to the outer side of the observation window.

Description

Technical Field

[0001] The utility model relates to the technical field of medical detection equipment, in particular to a reagent card and a detection system. Background Art

[0002] The immunochromatographic rapid detection technology is based on the chromatography technology, which is characterized by applying antigen-antibody immunological reaction and chromatography reaction. It has the advantages of simple detection method, fast detection speed, and small sample volume required, and can be widely used in on-site quantitative detection.

[0003] Among them, when detecting with an optical detector, if the detection light spot irradiated on the reagent card is small and cannot completely cover the control line and / or the detection line on the observation window, it is easy to cause a weak optical signal after reflection of the reagent card and low utilization rate; if the detection light spot irradiated on the reagent card is large, while covering the entire control line and / or detection line, it will cover too much background signal area, increasing the interference of the background signal, thereby affecting the detection accuracy. Summary of the Utility Model

[0004] The utility model provides a reagent card and a detection system, which can make the control line and / or the detection line on the observation window be completely covered by the detection light spot, and when the control line and / or the detection line are completely covered by the detection light spot, use an absorbent structure to absorb the detection light spot irradiated outside the observation window, reduce the interference of the background signal, improve the detection sensitivity, have a simple structure, a scientific and reasonable design, and are convenient to use.

[0005] According to the first aspect of the utility model, the utility model provides a reagent card, which comprises a shell and a test strip. A test strip cavity is arranged in the shell. A sample adding hole and an observation window are arranged on the shell. The observation window is located on one side of the sample adding hole. Both the sample adding hole and the observation window are communicated with the test strip cavity. The test strip is accommodated in the test strip cavity;

[0006] Wherein, an absorbent part and a carrying part for carrying an information carrier are formed on the shell. The color of the carrying part is different from that of the absorbent part. The absorbent part is arranged in a ring outside the observation window for absorbing the detection light spot irradiated outside the observation window.

[0007] In the reagent card of an embodiment of the utility model, the shell comprises a first shell made of a light-colored hard rubber material. The carrying part is formed on the first shell or is a partial structure of the first shell. The color of the absorbent part is different from that of the first shell and is arranged on the first shell.

[0008] In the reagent card of an embodiment of the utility model, the absorbent part is an absorbent part made of a black hard rubber material; or the absorbent part is a black absorbent layer arranged on the shell.

[0009] In the reagent card according to an embodiment of the present invention, the light absorption part is arranged on the outer side of the housing through a secondary injection molding process; alternatively, the light absorption part is arranged on the outer side of the housing through a two-color injection molding process.

[0010] In the reagent card according to an embodiment of the present invention, the housing forms an installation groove on the periphery of the observation window, and the light absorption part is installed in the installation groove.

[0011] In the reagent card according to an embodiment of the present invention, the test strip is provided with a control line and a test line, and the control line and the test line are correspondingly arranged in the observation window;

[0012] Wherein, the lengths of the control line and the test line are not greater than the length of the detection light spot irradiated on the observation window, and one end or both ends of the detection light spot at least partially fall on the light absorption part.

[0013] In the reagent card according to an embodiment of the present invention, an identification code is formed on the bearing part for obtaining the information carried by the reagent card;

[0014] Wherein, the identification code includes at least one of a bar code and a two-dimensional code.

[0015] In the reagent card according to an embodiment of the present invention, the identification code is formed on the bearing part through a laser engraving process or an inkjet process.

[0016] According to the second aspect of the present invention, the present invention provides a detection system, including an optical detector and the above-mentioned reagent card. The optical detector includes a light source generating unit, a light spot shaping unit and a light collection unit. The light source generating unit is used to generate incident light. After passing through the light spot shaping unit, the incident light is focused to form a linear detection light spot and irradiate on the reagent card. The light collection unit is used to collect the light signal reflected by the reagent card and convert it into an electrical signal.

[0017] In the detection system according to an embodiment of the present invention, the length of the detection light spot is greater than the length of the control line and / or the test line on the observation window, and one end or both ends of the detection light spot at least partially fall on the light absorption part.

[0018] The technical solutions provided by the embodiments of the present application may include the following beneficial effects: The present application designs a reagent card and a detection system. The reagent card includes a housing and a test strip. A sample addition hole and an observation window are provided on the housing, and the test strip is accommodated in the housing. Among them, an absorbent structure for information recognition is provided on the housing, and an identification code carrying reagent information such as reagent item types and batch numbers can be printed on the carrying part by processing methods such as laser engraving or inkjet printing. The absorbent structure is arranged around the outside of the observation window, so that the detection light spot can completely cover the observation window, and when the detection light spot completely covers the control line and / or the detection line on the observation window, the absorbent structure can be used to absorb the detection light spot irradiated outside the observation window, reduce background signal interference, improve detection sensitivity, with a simple structure, scientific and reasonable design, and convenient use.

[0019] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is a schematic structural diagram of a reagent card provided by an embodiment of the present application;

[0022] Figure 2 is Figure 1 a sectional view of the reagent card in the reagent card at one angle;

[0023] Figure 3 is Figure 1 a partial sectional view of the reagent card in the reagent card at another angle;

[0024] Figure 4 is Figure 1 a schematic diagram of the reagent card in the reagent card at one angle;

[0025] Figure 5 is Figure 1 an exploded view of the housing in the reagent card;

[0026] Figure 6 is Figure 1 a schematic optical path diagram of the detection system in the reagent card;

[0027] Figure 7 is Figure 1 a schematic diagram of the detection light spot irradiating on the reagent card in the reagent card.

[0028] Description of the reference numerals in the drawings:

[0029] 100, reagent card;

[0030] 10, housing; 10a, first housing; 10b, second housing; 10c, light absorbing part; 11, observation window; 111, mounting groove; 12, sample adding hole; 131, accommodating groove; 132, overflow tank; 133, flow guiding plate; 134, anti-overflow plate; 14, identification code;

[0031] 20, test strip; 21, test line; 22, control line;

[0032] 200, optical detector; 200a, detection light spot; 201, light source generating unit; 202, dichroic mirror; 203, first convex lens; 204, light collection unit. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] It should also be understood that the terms used in the specification of the present invention are only for the purpose of describing specific embodiments. In the description of this application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of this application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of this application, "a plurality" means two or more, unless otherwise specifically defined.

[0035] Next, some implementation manners of this application will be described in detail in conjunction with the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0036] As Figures 1 to 4As shown in the figure, according to the first aspect of the present application, the present application provides a reagent card 100, which includes a housing 10 and a test strip 20, and the test strip 20 is arranged inside the housing 10. Among them, a sample adding hole 12 and an observation window 11 are provided on the housing 10, the observation window 11 is located on one side of the sample adding hole 12, the sample adding hole 12 is used to drop the liquid to be tested onto the test strip 20, and the observation window 11 is used to observe the flow condition and chromatographic result of the liquid to be tested.

[0037] Exemplarily, a test strip cavity is arranged inside the housing 10, both the sample adding hole 12 and the observation window 11 are communicated with the test strip cavity, and the test strip 20 is accommodated in the test strip cavity. In this embodiment, the observation window 11 and the sample adding hole 12 are in a notch shape, and the size of the sample adding hole 12 gradually decreases from the outside to the inside, so as to ensure that when the liquid to be tested contacts the test strip 20, the maximum amount of liquid can be accommodated, and at the same time, the viewing angle of the sample adding hole 12 can also be increased.

[0038] It should be noted that the shape of the sample adding hole 12 can be circular, oval or square, etc., as long as the liquid to be tested can pass through the sample adding hole 12, and the present application does not impose any restrictions on the shape of the sample adding hole 12.

[0039] In an alternative embodiment, the sample adding hole 12 and the observation window 11 are arranged in sequence along the length direction of the housing 10, and the central axes of the sample adding hole 12 and the observation window 11 are on the same straight line.

[0040] In an alternative embodiment, a light absorbing part 10c and a carrying part for carrying an information carrier are formed on the housing 10, the color of the carrying part is different from that of the light absorbing part 10c, so that an identification code 14 carrying reagent information such as reagent item type and batch number can be printed by processing methods such as laser engraving process or inkjet process; the light absorbing part 10c is arranged around the outside of the observation window 11, and is used to absorb the detection light spot 200a irradiated outside the observation window 11, so that the detection light spot 200a can completely cover the observation window 11, and when the detection light spot 200a completely covers the control line 22 and / or the detection line 21 on the observation window 11, the detection light spot 200a irradiated outside the observation window 11 can be absorbed by the light absorbing structure, reducing background signal interference, improving detection sensitivity, with a simple structure, scientific and reasonable design, and convenient use.

[0041] Exemplarily, the color of the bearing part can be white or other light colors, which is convenient for printing identification codes 14 such as reagent item types and batch numbers of the bearing reagent through processing methods such as laser engraving process or inkjet process; the color of the light-absorbing part 10c can be black or other dark colors, so that the detection light spot 200a irradiated on the light-absorbing part 10c can be absorbed by the light-absorbing part 10c to the greatest extent, effectively avoiding the scattering of the detection light spot 200a on the light-absorbing part 10c, reducing the interference of stray light and background signals, improving the detection sensitivity, with a simple structure, scientific and reasonable design, and convenient to use. Among them, black has a good light absorption effect. When the detection light spot 200a is irradiated on the light-absorbing part 10c, no reflected stray light will be generated; or the reflected stray light is very weak and can be ignored.

[0042] In an optional embodiment, the housing 10 includes a first housing 10a made of a light-colored hard rubber material. The bearing part is formed on the first housing 10a or is a partial structure of the first housing 10a. The color of the light-absorbing part 10c is different from that of the first housing 10a and is arranged on the first housing 10a, so that two different color areas can be formed on the housing 10. One area can be used to print reagent information such as reagent item types and batch numbers of the bearing reagent card 100 through laser engraving or inkjet methods, and even the name of the detection item, the position identification of the control line 22 and the detection line 21 can be printed; the other area can form a background area outside the observation window 11 for absorbing the detection light spot 200a irradiated outside the observation window 11, that is, the detection light spot 200a irradiated on the light-absorbing part 10c can be absorbed by the light-absorbing part 10c to the greatest extent, effectively avoiding the scattering of the detection light spot 200a on the light-absorbing part 10c, reducing the interference of stray light and background signals, improving the detection sensitivity, with a simple structure and scientific and reasonable design.

[0043] Exemplarily, if the entire housing 10 is made of black or other dark hard plastic materials, it will be difficult to print reagent information such as the reagent item type and batch number of the reagent card 100 on the housing 10 through laser engraving or inkjet printing processes, thus making it impossible to achieve large-scale and automated production of the reagent card 100; or even if it is possible to print relevant reagent information on the housing 10, the production cost will increase and the efficiency will decrease. In addition, a white housing 10 is more acceptable to customers. If the entire housing 10 is made of white or light hard plastic materials, it is necessary to control the detection light spot 200a irradiated on the observation window 11, which will result in the detection light spot 200a being too small to completely cover the control line 22 and / or the detection line 21, the reflected optical signal being weak, and the utilization rate being low; if the detection light spot 200a is too large, it will increase the interference of background signals and affect the detection accuracy. Therefore, in the present application, a light-absorbing portion 10c is provided on the periphery of the observation window 11, and the color of the light-absorbing portion 10c is black or other dark colors, which can absorb the detection light spot 200a irradiated on the periphery of the observation window 11, effectively avoiding the scattering of the detection light spot 200a on the light-absorbing portion 10c, thereby reducing the interference of stray light and background signals, and further improving the detection sensitivity; at the same time, the entire housing 10 is made of white or light hard plastic materials, which is convenient for laser engraving machines to perform laser engraving, making the recognition performance of the bearing portion better and more stable; or the information of the reagent card 100 is formed on the bearing portion by means of inkjet or the like, which can also improve the appearance value of the housing 10, has a simple structure, is scientifically and reasonably designed, can achieve large-scale production, and has high production efficiency.

[0044] In an alternative embodiment, the housing 10 includes a second housing 10b. The sample addition hole 12 and the observation window 11 are sequentially arranged on the first housing 10a. A placement groove for placing the test strip 20 is formed on the second housing 10b, and the placement groove is located in the test strip cavity formed by the connection of the second housing 10b and the first housing 10a.

[0045] In an alternative embodiment, the light-absorbing portion 10c is a light-absorbing portion 10c made of black hard plastic material, and the light-absorbing portion 10c is arranged on the first housing 10a or is detachably connected to the first housing 10a, with a simple structure, scientific and reasonable design, and can be mass-produced automatically.

[0046] In an alternative embodiment, the light-absorbing portion 10c is a black light-absorbing layer arranged on the housing 10. The black light-absorbing layer is fixed on the housing 10 by pasting, or the black light-absorbing layer is formed by coating on the surface of the housing 10, and mainly functions to absorb light, which is not limited in the present application.

[0047] In an alternative embodiment, as Figure 4 and Figure 5As shown, the light absorption part 10c is arranged on the outer side of the housing 10 through a secondary injection molding process. That is, the first housing 10a is injection molded for the first time, and then the light absorption part 10c is injection molded for the second time on the basis of the first housing 10a injection molded for the first time, and the light absorption part 10c can be located on the periphery of the observation window 11 and fixed together with the first housing 10a. This can not only ensure the stability of the connection between the light absorption part 10c and the first housing 10a, but also improve the production efficiency of the first housing 10a, facilitate assembly, and improve the assembly efficiency.

[0048] In an alternative embodiment, the light absorption part 10c is arranged on the outer side of the housing 10 through a two-color injection molding process, so that the injection molded housing 10 can be formed by two materials. This not only ensures the stability of the connection between the light absorption part 10c and the housing 10, but also improves the production efficiency of the housing 10, facilitates assembly, and improves the assembly efficiency. Among them, both the light absorption part 10c and the housing 10 can be made of plastic materials such as ABS or PC, and the present application does not limit this.

[0049] In an alternative embodiment, as Figure 4 and Figure 5 shown, the housing 10 is formed with an installation groove 111 on the periphery of the observation window 11. The structure and size of the installation groove 111 are adapted to the structure and size of the light absorption part 10c, so that the light absorption part 10c can be firmly installed in the installation groove 111, and the outer end face of the light absorption part 10c is flush with the outer end face of the housing 10.

[0050] Exemplarily, the housing 10 is provided with a first fitting, and the light absorption part 10c is provided with a second fitting. The second fitting is detachably connected to the first fitting, so that the light absorption part 10c can be detachably installed on the housing 10 through the cooperation of the second fitting and the first fitting.

[0051] It should be noted that the first fitting can be the inner edge surrounding the installation groove 111, and the second fitting can be the outer periphery of the light absorption part 10c. The outer periphery of the light absorption part 10c is in interference fit or bonded to the inner edge of the installation groove 111; or the first fitting can be a buckle on the housing 10, and the second fitting can be a slot on the light absorption part 10c. The light absorption part 10c is detachably installed in the installation groove 111 through the connection of the buckle and the slot; or even the first fitting can be a first adsorption part arranged on the housing 10, and the second fitting can be a second adsorption part of the light absorption part 10c. The light absorption part 10c is installed on the housing 10 through the cooperation of the first adsorption part and the second adsorption part. The present application does not limit this.

[0052] In an alternative embodiment, the test strip 20 is provided with a control line 22 and a test line 21, and the control line 22 and the test line 21 are correspondingly arranged in the observation window 11. Among them, the lengths of the control line 22 and the test line 21 are not greater than the length of the test light spot 200a irradiated on the observation window 11, and one end or both ends of the test light spot 200a at least partially fall on the light-absorbing part 10c, so that the control line 22 and the test line 21 can be completely covered by the test light spot 200a, while the test light spot 200a on the outer peripheral side of the observation window 11 can be absorbed by the light-absorbing part 10c, effectively avoiding the scattering of the test light spot 200a on the light-absorbing part 10c, reducing the interference of stray light and background signals, and improving the detection sensitivity.

[0053] Exemplarily, the control line 22 and the test line 21 are parallel to each other and correspond to the position of the observation window 11. Among them, the lengths of the control line 22 and the test line 21 are both the same as the width of the observation window 11, or the lengths of the control line 22 and the test line 21 exposed on the observation window 11 are the same as the width of the observation window 11.

[0054] In an alternative embodiment, as Figure 2 and Figure 3 shown, the placement groove includes a receiving groove 131 and overflow grooves 132 located on both sides of the installation groove 111. The groove walls of the receiving groove 131 are inclined with flow guide plates 133 towards the inner bottom wall of the overflow grooves 132. The lower ends of the flow guide plates 133 extend into the overflow grooves 132, and the higher ends of the flow guide plates 133 are fixed on the side walls of the receiving groove 131, so that the excess liquid on the test strip 20 can be guided into the overflow grooves 132 through the flow guide plates 133, thereby avoiding the backflow of the liquid from the sample addition hole 12, and improving the detection accuracy and detection efficiency.

[0055] In an alternative embodiment, an anti-overflow plate 134 is further provided on the receiving groove 131. The lower end of the anti-overflow plate 134 is in contact with the side surface of the test strip 20, and the higher end of the anti-overflow plate 134 extends obliquely to the inner top wall of the first housing 10a. Among them, an anti-overflow assembly is provided on the side wall of the anti-overflow plate 134. When the measured liquid enters the interior of the test strip 20 through the sample addition hole 12, the obliquely arranged anti-overflow plate 134 has a guiding effect on the measured liquid, so that the measured liquid can flow towards the test strip 20 more quickly; when the flow rate of the measured liquid is relatively large, the measured liquid flows from the test strip 20 into the overflow grooves 132 through the flow guide plates 133, avoiding excessive measured liquid and preventing the measured liquid from backflowing out of the sample addition hole 12.

[0056] In an alternative embodiment, as Figure 4As shown, an identification code 14 is formed on the carrying part for obtaining the information carried by the reagent card 100. Among them, the identification code 14 includes at least one of a bar code and a two-dimensional code, which can facilitate the identification and reading of the information of the reagent card 100 and is conducive to realizing information-based recording and management.

[0057] In an alternative embodiment, the identification code 14 is formed on the carrying part by a laser engraving process or an inkjet process, so that the identifiability of the identification code 14 is better, and the identification code 14 formed by the laser engraving process or the inkjet process is more stable, which can avoid the problem of damage to the identification code 14 in the form of a sticker.

[0058] As Figures 1 to 7 shown, according to the second aspect of the present application, the present application provides a detection system, including an optical detector 200 and the above-mentioned reagent card 100. Among them, the optical detector 200 includes a light source generating unit 201, a spot shaping unit, and a light collection unit 204. The light source generating unit 201 is used to generate incident light, which is focused into a linear detection spot 200a after passing through the spot shaping unit and irradiates on the reagent card 100. The light collection unit 204 is used to collect the light signal reflected by the reagent card and convert it into an electrical signal. Among them, the linear detection spot 200a can improve the excitation efficiency of the incident light for the control line 22 and the detection line 21 of the reagent card 100, enhance the excitation light intensity, and thus improve the accuracy of optical detection.

[0059] Exemplarily, the spot shaping unit includes a dichroic mirror 202 and a first convex lens 203. The dichroic mirror 202 is inclined above the first convex lens 203. The dichroic mirror 202 is used to reflect the incident light generated by the light source generating unit 201 to the first convex lens 203, and the first convex lens 203 is used to converge the incident light into a linear detection spot 200a and then irradiate on the reagent card 100.

[0060] Exemplarily, the light source generating unit 201 includes a light-emitting light source, a first filter, and a first convex lens 203. The first filter is used to eliminate the interference light of the incident light generated by the light-emitting light source, the first convex lens 203 is used to converge the light beam passing through the first filter, and the dichroic mirror 202 is used to deflect and reflect the light beam converged by the first convex lens 203 and then enter the observation window 11 of the reagent card 100 through a second convex lens.

[0061] Exemplarily, the light collection unit 204 includes a second filter, a third convex lens, and a photodiode. The emitted light is converged by the third convex lens and reaches the photodiode through the second filter, and the photodiode converts the converged light signal into an electrical signal.

[0062] In an optional embodiment, the length of the detection light spot 200a is greater than the length of the control line and / or the detection line on the observation window 11, and one end or both ends of the detection light spot 200a at least partially fall on the light absorption part 10c, so that the detection light spot 200a can completely cover the control line 22 and the detection line 21, and at the same time, the light signals other than the control line 22 and the detection line 21 can be blocked by the light absorption part 10c, reducing the background signal interference, thereby improving the detection sensitivity.

[0063] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0064] In the present application, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0065] The above disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and settings of specific examples are described above. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0066] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

Claims

1. A reagent card, characterized in that, It includes a housing and a test strip. A test strip chamber is provided inside the housing. The housing is provided with a sample addition hole and an observation window. The observation window is located on one side of the sample addition hole. Both the sample addition hole and the observation window communicate with the test strip chamber, and the test strip is accommodated in the test strip chamber; Wherein, an absorbent part and a carrying part for carrying an information carrier are formed on the housing. The color of the carrying part is different from that of the absorbent part. The absorbent part is annularly arranged outside the observation window and is used to absorb the detection light spot irradiated outside the observation window.

2. The reagent card according to claim 1, characterized in that, The housing includes a first housing made of a light-colored hard rubber material. The carrying part is formed on the first housing or is a partial structure of the first housing. The color of the absorbent part is different from that of the first housing and is arranged on the first housing.

3. The reagent card according to claim 1 or 2, characterized in that, The absorbent part is an absorbent part made of a black hard rubber material; or, the absorbent part is a black absorbent layer provided on the housing.

4. The reagent card according to claim 3, wherein The absorbent part is provided on the outside of the housing through a secondary injection molding process; or, the absorbent part is provided on the outside of the housing through a two-color injection molding process.

5. The reagent card according to claim 3, wherein The housing forms an installation groove on the periphery of the observation window, and the absorbent part is installed in the installation groove.

6. The reagent card according to claim 1, characterized in that, The test strip is provided with a control line and a detection line, and the control line and the detection line are correspondingly arranged in the observation window; Wherein, the lengths of the control line and the detection line are not greater than the length of the detection light spot irradiated on the observation window, and one end or both ends of the detection light spot at least partially fall on the absorbent part.

7. The reagent card according to claim 2, wherein An identification code is formed on the carrying part for obtaining the information carried by the reagent card; Wherein, the identification code includes at least one of a barcode and a two-dimensional code.

8. The reagent card according to claim 7, wherein The identification code is formed on the carrying part through a laser engraving process or an inkjet process.

9. A detection system, characterized in that, It includes an optical detector and a reagent card according to any one of claims 1 to 8. The optical detector includes a light source generating unit, a light spot shaping unit, and a light collection unit. The light source generating unit is used to generate incident light. The incident light is focused by the light spot shaping unit to form a linear detection light spot and irradiate on the reagent card. The light collection unit is used to collect the reflected optical signal of the reagent card and convert it into an electrical signal.

10. The detection system according to claim 9, characterized in that, The length of the detection light spot is greater than the length of the control line and / or the detection line on the observation window, and one end or both ends of the detection light spot at least partially fall on the absorbent part.

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