tester

Abstract

The utility model discloses a tester, including the tester body, be equipped with the test strip socket on the tester body, its characterized in that, the tester body is equipped with the passageway still at the test strip socket, and the both ends of passageway are first opening and second opening respectively, and the bottom surface of first opening is at the test strip socket, and the second opening is on the tester body, and the height of first opening is lower. Through the passageway set up at the test strip socket, it is convenient to discharge the disinfectant liquid left when disinfecting the test strip socket and other liquid, such as detection liquid, avoid the influence inside electronic component.

Description

Technical Field

[0001] This utility model belongs to the field of biomedical detection technology, specifically relating to a testing instrument. Background Technology

[0002] Portable testing instruments are generally small in size, consisting of an upper and lower casing, as well as electronic equipment installed inside the upper and lower casings. The casing is equipped with operation buttons, a display screen, and data ports. Some testing instruments also include a strip ejection button, and a test strip insertion port is located at the front of the casing.

[0003] Test strips can be divided into electrochemical test strips and photochemical test strips. Electrochemical test strips include electrodes and electrode leads. The front end of the electrode lead connects to the electrode, and the rear end of the electrode lead has contacts that connect to a connector inside the tester. During testing, the contacts of the electrochemical test strip are inserted into the insertion port of the tester. The electrode terminals of the electrochemical test strip contact the sample and react. The tester obtains the electrical signal of the reaction and converts it into a test result, which is displayed on the screen. Photochemical test strips include a reagent sheet containing reaction reagents. During testing, the sample is added to the reagent sheet, and the photochemical test strip is inserted into the insertion port of the tester. The optical system of the tester captures the optical signal of the reaction and converts it into a test result, which is displayed on the screen. After the test is completed, the inserted test strip is removed using the eject button or manually pulled out.

[0004] Operators need to disinfect the insertion port with alcohol periodically or immediately after testing to remove any blood or other samples that may have come into contact with it. Excessive alcohol may accumulate at the insertion port and flow into the testing instrument, potentially damaging its electronic components.

[0005] For example, the utility model with authorization announcement number CN200920124245 discloses a portable adaptive blood glucose meter, which has a test strip slot on the main body of the blood glucose meter.

[0006] On the other hand, some channels on the tester are directly connected to the electronic components inside the housing, allowing external static electricity to pass through these channels and damage the internal electronic components. Summary of the Invention

[0007] This invention addresses the problem of liquid accumulating at the insertion port of the test strip and being difficult to drain, by providing a testing instrument. The specific technical solution adopted is as follows:

[0008] The tester includes a housing and electronic components inside the housing. One side of the housing is provided with a display screen. The housing is provided with a test strip socket. The housing is provided with a channel at the test strip socket. The two ends of the channel are a first opening and a second opening, respectively. The first opening is located on the bottom surface of the test strip socket, and the second opening is located on the bottom of the housing. When the tester is placed with the display screen facing upwards, the height of the second opening in the vertical direction is lower than the height of the first opening.

[0009] The channel can be used to drain the disinfectant left when the test strip socket is disinfected, and it can also be used to drain the test liquid that falls out from the test paper inserted into the test strip socket. The test liquid includes samples, reaction reagents, etc.

[0010] The test strip slot is used to insert test strips during testing. Depending on the testing method, a corresponding test strip can be inserted. For example, electrochemical testing uses an electrochemical test strip, while photochemical testing uses a photochemical test strip. The tests can include, but are not limited to, blood glucose, uric acid, creatinine, urea, glycated hemoglobin, hemoglobin, and blood lipids.

[0011] Preferably, the number of channels at each test strip socket is one or more. When the number of channels at the test strip socket is multiple, each channel is arranged along the axial direction of the test strip socket and / or perpendicular to the axial direction of the test strip socket. The axial direction of the test strip socket refers to the direction in which the test strip socket extends, i.e., the length direction; the direction perpendicular to the axial direction of the test strip socket is the width direction of the test strip socket.

[0012] Preferably, the channel is arranged vertically downwards or diagonally downwards to facilitate the flow of liquid along the channel.

[0013] Preferably, the test strip socket includes an opening leading to the outside of the tester, and the channel is located near the opening. The opening is also the inlet. Disinfectant or test liquid tends to accumulate at the opening of the test strip socket; this design facilitates liquid outflow and minimizes the risk of negatively impacting internal electronic components.

[0014] Preferably, the test strip insertion port is located on the side of the housing. By placing the test strip insertion port on the side, the channel can be designed to be shorter, and the impact of the channel design on the internal structure is minimized.

[0015] Preferably, the testing instrument body is provided with one or more test strip slots. When there is one test strip slot, the inserted test strip is one of the following: blood glucose, uric acid, creatinine, urea, glycated hemoglobin, hemoglobin, blood lipids, etc.; when there are two test strip slots, one slot may be used for blood glucose testing and the other for blood lipid testing, or both slots may use the same type of test strip. The number of test strip slots and the corresponding test items can be adjusted according to actual needs.

[0016] Preferably, the housing includes an upper shell and a lower shell that overlap each other. One side of the housing is provided with an end cover. The test strip insertion port includes an opening leading to the outside of the tester, and this opening is located on the end cover. The end cover can be installed to the corresponding position on the housing via a snap-fit ​​connection or other connection method. The end cover design allows the opening structure of the test strip insertion port to be designed as a complete structure, rather than a structure formed by splicing the upper and lower shells together, thus simplifying the structure of the remaining upper and lower shells. The end cover can also be disassembled for cleaning, replacement, etc., when needed.

[0017] More preferably, the end cover is provided with a channel at the assembly surface where it mates with the upper and lower shells. This channel is directly formed on the assembly surface where the end cover mates with the shell, making the manufacturing process relatively simple.

[0018] The second aspect of this invention addresses the problem that some channels on a tester can easily allow external static electricity to enter the interior and damage electronic components. It provides a portable tester that reduces this effect by providing static electricity baffles inside the channels.

[0019] A portable tester includes a housing and electronic components located inside the housing. The housing has a channel that allows the electronic components inside the housing to communicate with the outside. One end of the channel is open near the electronic components, and the other end is open on the outer surface of the housing. An electrostatic baffle is provided inside the channel.

[0020] Preferably, the electrostatic baffle is located between the two openings at both ends of the channel.

[0021] Preferably, the electrostatic baffle blocks a portion of the cross-section of the channel, leaving a gap. More preferably, the electrostatic baffle extends from one side wall of the channel toward the opposite side, with the gap between them.

[0022] To prevent static electricity from entering the interior of the tester along the channel, the static baffle can be positioned at different points within the channel. The position of the openings at both ends may vary depending on the function of the channel. For channels used for liquid outflow, the end located on the outer surface of the housing needs to be lower than the other end. In this case, it is preferable to place the static baffle closer to the end on the outer surface of the housing, so that there is sufficient space above the channel to accommodate liquid that accumulates in a short time, allowing the liquid to slowly flow out through the gap.

[0023] Preferably, the housing is provided with a test strip insertion port, and the housing is provided with a channel at the test strip insertion port. The two ends of the channel are a first opening and a second opening, respectively. The first opening is located on the bottom surface of the test strip insertion port, and the second opening is located on the bottom of the housing. One side of the housing is provided with a display screen. When the tester is placed with the display screen facing upwards, the height of the second opening in the vertical direction is lower than the height of the first opening.

[0024] More preferably, the electrostatic baffle is positioned close to the second opening.

[0025] More preferably, the housing includes an upper shell and a lower shell that overlap each other, and an end cover is provided on one side of the housing. The test strip insertion port includes an opening leading to the outside of the tester, and the opening is provided on the end cover.

[0026] More preferably, a channel is provided at the assembly surface where the end cover mates with the upper and lower shells, and the electrostatic baffle is provided in the channel, which makes the fabrication of this structure more convenient.

[0027] More preferably, when there are multiple channels at the test strip socket, each channel is arranged along the axial direction of the test strip socket and / or perpendicular to the axial direction of the test strip socket.

[0028] Preferably, the channel is arranged vertically downwards or diagonally downwards.

[0029] The first aspect of this utility model has the following advantages: by providing a channel at the test strip insertion port, it is convenient to drain the disinfectant solution left when disinfecting the test strip insertion port, as well as other liquids, such as detection liquids, thus avoiding interference with internal electronic components.

[0030] The beneficial effect of the second aspect of this utility model is that by setting an electrostatic baffle in the channel, external static electricity is prevented from entering the interior along the channel and damaging the internal electronic components. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the three-dimensional structure of the testing instrument.

[0032] Figure 2 This is a three-dimensional structural diagram of the testing instrument from another perspective.

[0033] Figure 3 A three-dimensional structural diagram of the tester inserting the test strip.

[0034] Figure 4 This is a schematic diagram of the three-dimensional structure of the end cap.

[0035] Figure 5 This is a three-dimensional structural diagram of the end cap from another perspective.

[0036] Figure 6 This is a cross-sectional view of the test instrument without the electrostatic shield.

[0037] Figure 7 for Figure 6 Enlarged view of part A in the middle.

[0038] Figure 8 This is a cross-sectional view of a test instrument containing an electrostatic shield.

[0039] Figure 9 for Figure 8 Enlarged view of part B in the middle.

[0040] Figure 10 A cross-sectional view of a tester with an electrostatic baffle inserted into a test paper.

[0041] Figure 11 for Figure 10 A magnified view of part C in the image.

[0042] Figure label:

[0043] Top shell 1, display screen 101, button 102,

[0044] Lower casing 2, power button 201, battery cover 202,

[0045] End cover 3, test strip insertion port 301, channel 302, first opening 303, second opening 304, channel 305, first opening 306, second opening 307, electrostatic baffle 308.

[0046] Test strip 4. Detailed Implementation

[0047] Utility Model 1:

[0048] This invention provides a testing instrument for inserting test strips for detection. The testing instrument includes a housing and electronic components located within the housing. Figures 1-3 As shown, the shell includes an upper shell 1 and a lower shell 2, which are assembled together to form the shell.

[0049] The upper casing 1 is embedded with a display screen 101 and operation buttons 102. The display screen 101 is used to display some status parameters of the tester and data after testing. The buttons 102 include one or more, corresponding to different control functions, for operating and controlling the tester during use.

[0050] In this example, the testing system (tester and test strips) is calibration-free; such testers do not have a calibration chip slot. In other embodiments, the lower casing 2 of the tester has a calibration chip (code card) slot on one side. This slot is used to insert the calibration chip (code card) before formal testing, and then perform calibration testing to ensure the tester is in good working condition. Some testing systems (testers and test strips) are calibration-free; these testers do not need a calibration chip slot. A power button 201 is also located on one side of the lower casing 2. The power button 201 is used to control the power-on and power-off operations of the entire tester. The inner side of the lower casing 2 has a battery mounting location, and a battery cover 202 is fitted externally to the battery mounting location.

[0051] An end cap 3 is provided on one side of the housing. (In such cases...) Figures 1-11 In the preferred embodiment shown, the end cover 3 is a separately manufactured component, which is then assembled with the upper shell 1 and the lower shell 2 to form a housing via snap-fit ​​connections or other connection methods. In another alternative embodiment, the end cover 3 may also be integrally molded with the upper shell 1 or the lower shell 2, and then assembled with the lower shell 2 or the upper shell 1 to form a housing (not shown). In yet another alternative embodiment, the end cover 3 may also consist of two parts, upper and lower, which are integrally molded with the upper shell 1 and the lower shell 2 respectively (i.e., the upper and lower parts of the end cover 3 are respectively a part of the upper shell 1 and the lower shell 2). After the upper shell 1 and the lower shell 2 are assembled into a housing, the end cover 3 (not shown) is formed on one side of the housing. In the above three embodiments, the housing includes the end cover 3; in other words, the end cover 3 is a part of the housing. Except for the above differences in the end cover 3, all other designs in this application are the same. Therefore, this application only applies to... Figures 1-11 The preferred embodiments shown will be described in detail.

[0052] The housing has a test strip insertion port 301 on the side where the end cover 3 is located, and the opening of the test strip insertion port 301 is located on the end cover 3 and extends inward into the housing. The test strip insertion port 301 is used to insert the test strip to be tested. There can be one or more test strip insertion ports. In the structure shown in the figure, there are two test strip insertion ports 301.

[0053] like Figure 4 and Figure 5The diagram shows the front and back structures of the independently manufactured end cover 3. The independently manufactured end cover 3 allows the opening structure of the test strip insertion port 301 to be designed on the end cover 3, creating a complete structure rather than a top-to-bottom spliced ​​structure. This also simplifies the structure of the upper shell 1 and lower shell 2. The end cover 3 can also be disassembled for cleaning, replacement, or other operations when needed.

[0054] Test strips can be categorized into electrochemical and photochemical test strips based on their detection methods, and into different types based on the specific test being performed, such as blood glucose testing and blood lipid testing. Different test strips are inserted according to the detection method; for example, an electrochemical test strip is inserted into the test strip slot for electrochemical detection, while a photochemical test strip is inserted into the test strip slot for photochemical detection. Of course, the electronic components differ for different detection methods, requiring corresponding settings.

[0055] When a test strip has multiple slots, test strips for different detection items can be used. For example, in the structure shown in the figure, two test strip slots 301 can be used to detect one of the following: blood glucose, uric acid, creatinine, urea, glycated hemoglobin, hemoglobin, or blood lipids. The other can be used to detect another of the following: blood glucose, uric acid, creatinine, urea, glycated hemoglobin, hemoglobin, or blood lipids. Of course, multiple test strip slots can also be used to detect the same item, allowing multiple samples to be tested simultaneously.

[0056] When the test strip is inserted into the test strip socket for testing, some test liquid (sample, reaction reagent, etc.) may fall from the test strip into the test strip socket. Additionally, disinfectant or cleaning solution (collectively referred to as disinfectant in this application) may remain in the test strip socket after disinfection or cleaning before or after use. If the amount of this test liquid or disinfectant is large, it may flow into the housing, affecting the normal function of the electronic components inside. To solve this problem, the housing of this application also has a channel at the test strip socket to promptly drain the test liquid or disinfectant out of the housing instead of flowing into the housing. The two ends of the channel are a first opening and a second opening, respectively. The first opening is located on the bottom surface of the test strip socket, and the second opening is located at the bottom of the housing. When the tester is placed with the display screen facing upwards, the height of the second opening in the vertical direction is lower than the height of the first opening. The channel is designed to promptly drain the liquid from the test strip socket, preventing the liquid from flowing into the housing and thus affecting the function of the electronic components.

[0057] The number of channels at each test strip socket is one or more (in this application, "more than" means at least two, including two or more). When the number of channels at each test strip socket is more than one, each channel is arranged along the test strip socket axis and / or perpendicular to the test strip socket axis. The test strip socket axis refers to the direction in which the test strip socket extends, i.e., the length direction; the direction perpendicular to the test strip socket axis is the width direction of the test strip socket.

[0058] The channel needs to allow liquid to flow out; therefore, it is preferable that the channel is vertically downward or diagonally downward, facilitating the liquid's vertical or diagonal flow out. Because disinfectant or test liquid tends to accumulate at the opening of the test strip connector, it is preferable to design the channel near the opening of the test strip connector, i.e., the inlet. This design facilitates liquid outflow and minimizes the risk of negatively impacting internal electronic components.

[0059] The test strip port is located on the side of the overall structure, which is end cap 3 in the structure shown in the figure. This allows the channel to be designed to be relatively short, and minimizes the impact of the channel design on the internal structure.

[0060] like Figure 6 and Figure 7 As shown in the figure, in the structure shown, there are two channels at each test strip insertion point, namely channel 302 and channel 305. Channel 302 is located near the outer side, and channel 305 is located near the inner side. Channel 302 has a first opening 303 at the test strip insertion point 301 and a second opening 304 on the bottom surface of the end cover 3. Channel 305 is formed on the assembly surface where the end cover 3 is assembled with the housing.

[0061] Utility Model 2:

[0062] The second aspect of this invention provides a tester with an electrostatic discharge (ESD) baffle. The tester includes a housing and electronic components located within the housing. A channel is provided on the housing to connect the electronic components to the outside. One end of the channel opens near the electronic components, and the other end opens on the outer surface of the housing. An ESD baffle is installed within the channel to reduce the risk of external static electricity entering the housing via the channel. The ESD baffle is made of insulating plastic and physically isolates the static electricity from the housing. The channel in this design can be any structure directly connected to the interior of the housing, provided there is a possibility of external static electricity entering the housing and affecting the electronic components. Of course, the ESD baffle should not impair the normal functioning of the channel.

[0063] To prevent static electricity from entering the interior of the tester along the channel, the static baffle can be positioned at different points within the channel. The position of the openings at both ends may vary depending on the function of the channel. For channels used for liquid outflow, the end located on the outer surface of the housing needs to be lower than the other end. In this case, it is preferable to place the static baffle closer to the end on the outer surface of the housing, so that there is sufficient space above the channel to accommodate liquid that accumulates in a short time, allowing the liquid to slowly flow out through the gap.

[0064] In one embodiment, the rest of the tester's structure is the same as in Utility Model 1, except that an electrostatic baffle is added to the channel closest to the electronic components inside the housing, because static electricity entering the housing through this channel is most likely to affect the electronic components inside the housing. Figure 8 and Figure 9 The diagram shown is a structural schematic when the test strip is not inserted. Figure 10 and Figure 11 The diagram shows the structure after the test strip is inserted. In each test strip insertion port 301, an electrostatic baffle 308 is provided in the inner channel 305. The electrostatic baffle 308 is located between the two openings of the channel 305. The electrostatic baffle 308 extends from one side wall of the channel 305, i.e., the end cover 3, and extends towards the opposite side. The electrostatic baffle 308 blocks part of the cross-section of the channel 305, leaving a gap between it and the opposite side to ensure that liquid can still flow out of the channel 305. The top surface of the channel 305 is the first opening 306, and the bottom surface is the second opening 307. The electrostatic baffle 308 is close to the second opening 307, ensuring sufficient space above the electrostatic baffle 308 to accommodate liquid. Of course, in other embodiments, an electrostatic baffle can be provided in each channel, as long as the electrostatic baffle does not obstruct the flow of liquid through the channel.

Claims

1. A testing instrument, comprising a housing and electronic components within the housing, wherein a display screen is provided on one side of the housing, and the housing is provided with a test strip insertion port, characterized in that, The housing has a channel at the test strip insertion port, with a first opening and a second opening at each end of the channel. The first opening is located on the bottom surface of the test strip insertion port, and the second opening is located at the bottom of the housing. When the tester is placed with the display screen facing upwards, the height of the second opening in the vertical direction is lower than the height of the first opening.

2. The testing instrument according to claim 1, characterized in that, The number of channels at each test strip socket is one or more.

3. The testing instrument according to claim 2, characterized in that, When there are multiple channels at the test strip socket, each channel is arranged along the axial direction of the test strip socket and / or perpendicular to the axial direction of the test strip socket.

4. The testing instrument according to claim 1, characterized in that, The channel is set vertically downwards or diagonally downwards.

5. The testing instrument according to claim 1, characterized in that, The test strip socket includes an opening leading to the outside of the tester, and the channel is located near the opening.

6. The testing instrument according to claim 1, characterized in that, The test strip insertion port is located on the side of the housing.

7. The testing instrument according to claim 1, characterized in that, The housing is provided with one or more test strip ports.

8. The testing instrument according to claim 1, characterized in that, The housing includes an upper shell and a lower shell that overlap each other, and an end cover is provided on one side of the housing. The test strip insertion port includes an opening leading to the outside of the tester, and the opening is provided on the end cover.

9. The testing instrument according to claim 8, characterized in that, The end cover has a channel at the assembly surface where it mates with the upper and lower shells.

10. The testing instrument according to claim 1, characterized in that, The number of channels is at least one, and an electrostatic baffle is provided in at least the channel closest to the electronic components inside the housing.

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