Clamp for dredging test card

Abstract

The utility model provides a clamp for dredging a test card. The clamp comprises a first clamping arm, a second clamping arm and a conducting pipeline. Wherein the second clamping arm is movably connected with the first clamping arm, and when the second clamping arm and the first clamping arm are configured to be in a first relative posture and form a clamping space, the test card can be clamped. The first end of the conduction pipeline is configured to be capable of being in butt joint with the driving part, and the second end of the conduction pipeline is configured to be exposed to the clamping space at least in the first relative posture and can be in butt joint with the liquid inlet or the liquid outlet of the test card. Therefore, normal use of the test card can be recovered by adopting the clamp, so that the repeated utilization rate of the test card is increased, and the service life of the test card is prolonged.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a clamp for unblocking test cards. Background Technology

[0002] Blood gas analyzers are commonly used medical devices widely applied in clinical environments such as emergency rooms, intensive care units, and operating rooms. They utilize electrodes to measure relevant indicators in arteries, such as pH, partial pressure of carbon dioxide (PCO2), and partial pressure of oxygen (PCO2), within a short time. They offer advantages such as rapid and convenient testing and a wide range of applications. A blood gas analyzer mainly consists of the analyzer unit, reagent kit, and test cards. The test cards are primarily used for calibration and sample signal acquisition, and they come into direct contact with the sample during testing. However, sometimes blood clots may be present in the sample, causing blockages in the test card's fluid channels or leaving blood clots inside, rendering the test card unusable. Utility Model Content

[0003] The main technical problem addressed by this application is to provide a fixture for unclogging test cards to restore their normal use, thereby improving the reusability and lifespan of the test cards and reducing the replacement cost of the test cards and the cost of using the instrument.

[0004] To solve the above-mentioned technical problems, the technical solution adopted in this application is: to provide a clamp for unblocking test cards. The clamp includes: a first clamping arm; and a second clamping arm movably connected to the first clamping arm, wherein the second clamping arm and the first clamping arm are configured in a first relative posture and form a clamping space, enabling the clamping of the test card; and a conductive conduit, wherein a first end of the conductive conduit is configured to dock with a driving member, and a second end of the conductive conduit is configured to be exposed in the clamping space at least in the first relative posture, enabling docking with the inlet or outlet of the test card.

[0005] In some embodiments, the clamp further includes an operating element disposed between the first clamping arm and the second clamping arm, the operating element being used to connect the liquid path of the test card to the inlet, the sample detection channel, and the outlet.

[0006] In some embodiments, the conductive conduit includes: a main body section, a first end of which is configured to dock with the drive member; and a bent section extending through the first clamping arm, wherein a first end of the bent section is connected to a second end of the main body section, and the second end of the bent section is configured to dock with the inlet or the outlet to connect the conductive conduit to the liquid path of the test card.

[0007] In some embodiments, the drive is a fluid transfer device and is configured to inject fluid into or extract fluid from the fluid path of the test card; the first end of the main body segment is located outside the first clamping arm and is configured to dock with the drive.

[0008] In some embodiments, the surface of the first clamping arm facing the second clamping arm has a positioning area, which is configured to fix the positioning part of the test card so as to achieve positioning docking of the second end of the bent section with the liquid inlet or the liquid outlet.

[0009] In some embodiments, the first clamping arm is provided with a positioning post, the positioning post is located in the positioning area and is spaced apart from the bending section; the positioning part is provided with a first receiving groove, and the positioning post is configured to be embedded in the first receiving groove so that the test card is fixed to the first clamping arm.

[0010] In some embodiments, the operating member includes a pressing member disposed on the surface of the second clamping arm facing the first clamping arm, the pressing member being configured to squeeze a valve of the test card in the first relative posture to connect the inlet, the sample detection channel, and the outlet.

[0011] In some embodiments, the surface of the second clamping arm facing the first clamping arm is provided with a second receiving groove, the pressing member is at least partially received in the second receiving groove, and the pressing end of the pressing member protrudes from the clamping surface of the second clamping arm.

[0012] In some embodiments, the operating element includes two or more of the pressing elements, wherein two of the pressing elements respectively press the first valve and the second valve of the test card to connect the liquid inlet, the sample detection channel, and the liquid outlet; the clamp further includes a sealing element sleeved on the pressing elements, the sealing element being configured to be located between one of the pressing elements and the first valve and between the other pressing element and the second valve in the first relative posture.

[0013] In some embodiments, the pressing member includes a pressing portion and an elastic portion, the elastic portion being sleeved on the pressing portion and received in the second receiving groove, the pressing portion having a pressing end for pressing the valve.

[0014] In some embodiments, the first clamping arm has a first fixed shaft and a second fixed shaft at its opposite ends, and the first end of the second clamping arm is sleeved on the first fixed shaft to be movably connected to one end of the first clamping arm; the clamp further includes: a fastener movably connected to the second fixed shaft, the fastener being configured to engage the other end of the first clamping arm with the second end of the second clamping arm; or the second end of the first clamping arm is magnetically connected to the second end of the second clamping arm.

[0015] In some embodiments, the fastener includes: a torsion spring movably connected to the second fixed shaft; and a latch movably connected to the second fixed shaft; wherein, in the first relative posture, a first force-bearing end of the torsion spring is configured to abut against one side of the test card or against the first clamping arm, and a second force-bearing end of the torsion spring is configured to abut against a first end of the latch to provide an elastic force to drive the latch to the second clamping arm.

[0016] In some embodiments, the second end of the conductive pipe is configured to be directly connected to the inlet or the outlet in the first relative posture; or, the clamp further includes a connecting pipe, and the second end of the conductive pipe is configured to be connected to the inlet or the outlet through the connecting pipe in the first relative posture to connect the conductive pipe to the liquid path of the test card; or, the first clamping arm is further provided with a connecting structure, and the second end of the conductive pipe is configured to be connected to the inlet or the outlet through the connecting structure in the first relative posture.

[0017] In some embodiments, the first clamping arm is provided with a mounting hole, and the conductive pipe is inserted into the mounting hole.

[0018] In some embodiments, one end of the first clamping arm is connected to a first end of the second clamping arm, and the other end of the first clamping arm is connected to a second end of the second clamping arm, so that the first clamping arm and the second clamping arm maintain the first relative posture to form a clamping space, the clamping space being configured to clamp the test card.

[0019] In some embodiments, the first clamping arm is provided with a mounting hole, and the conductive pipe includes a conductive element, which is tubular and inserted into the mounting hole. A first end and a second end of the conductive element are respectively exposed in the mounting hole. The first end of the conductive element is used to engage with the driving element, and the second end of the conductive element is used to engage with the liquid inlet or the liquid outlet. The surface of the first clamping arm facing the second clamping arm has a positioning area, which is configured to fix the positioning part of the test card to achieve positioning and engagement of the conductive element with the liquid inlet or the liquid outlet. The first clamping arm is provided with a positioning post, which is located in the positioning area. The operating element includes a pressing element located on the surface of the second clamping arm facing the first clamping arm. The operating element includes two or more pressing elements, wherein two pressing elements respectively squeeze the first valve and the second valve of the test card to connect the liquid inlet, the sample detection channel, and the liquid outlet. The clamp further includes a seal sleeved on the pressing member, the seal being configured to be located between one of the pressing members and the first valve and between the other pressing member and the second valve in the first relative posture.

[0020] Unlike existing technologies, the advantages of this application are as follows: A first clamping arm is movably connected to a second clamping arm to form a clamping space when they are in a first relative posture, thus clamping the test card to be cleared. The coordinated operation of the operating component, the guiding pipe, and the driving component allows fluid, such as cleaning fluid or gas, to be injected into the second liquid path of the test card in a connected state, or fluid to be drawn from the second liquid path of the test card in a connected state, under the action of the driving component. In this way, the fluid can flow through the first end of the guiding pipe, the inlet, the sample detection channel, and the outlet, clearing blockages in the second liquid path of the test card or blood clots remaining in the second liquid path, until the blood clots are expelled from the second liquid path of the test card, thereby restoring the test card to usability. This improves the reusability and lifespan of the test card, while reducing the replacement cost of the test card and the cost of using the instrument. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0022] Figure 1 This is a schematic diagram of the structure of one embodiment of the test card of this application;

[0023] Figure 2This is a schematic diagram of the structure of one embodiment of the fixture of this application;

[0024] Figure 3 yes Figure 1 An exploded perspective view of the fixture in the illustrated embodiment;

[0025] Figure 4 yes Figure 2 When the clamp in the illustrated embodiment is in the first relative posture, it is with Figure 1 The diagram shows the structure of the test card in the embodiment shown.

[0026] Figure 5 yes Figure 2 When the clamp in the illustrated embodiment is in the second relative posture, it is with Figure 1 The diagram shows the structure of the test card in the embodiment shown.

[0027] Figure 6 yes Figure 4 A schematic cross-sectional view of the fixture and test card along the AA direction;

[0028] Figure 7 yes Figure 4 A schematic cross-sectional view of the fixture and test card along the BB direction;

[0029] Figure 8 This is a schematic diagram of the structure of one embodiment of the fixture of this application;

[0030] Figure 9 This is a schematic diagram of the structure of one embodiment of the fixture of this application.

[0031] Explanation of reference numerals in the attached figures

[0032] 100. Clamp; 10. First clamping arm; 11. First fixed shaft; 12. Second fixed shaft; 101. Positioning area; 13. Positioning post; 102. Mounting hole; 14. Adapter structure; 20. Second clamping arm; 201. Second receiving groove; 30. Conducting pipe; 31. First conducting part / main body section; 32. Second conducting part / bending section; 40. Pressing element; 41. Pressing part; 42. Elastic part; 50. Sealing element; 60. Fastener; 61. Torsion spring; 62. Lock; 70. Adapter fitting; 300. Test card; 301. Sample detection channel; 303. Liquid inlet; 304. Liquid outlet; 305. First receiving groove; 33. Positioning part; 34. First valve; 35. Second valve. Detailed Implementation

[0033] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not the entire structure. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0034] The terms "first," "second," etc., used in this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "featured," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0035] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0036] A blood gas analyzer, also known as a "blood gas analysis device" or "blood gas biochemistry analyzer," can measure H in a sample. + Blood gas analysis is a technique used to understand human respiratory function and acid-base balance by analyzing the concentration of gases dissolved in the sample (mainly CO2, O2, etc.) and other parameters. It directly reflects lung gas exchange function and acid-base balance by observing changes in the content of gases such as oxygen and carbon dioxide in the blood, as well as blood pH and related indicators. The sample used is typically a blood sample.

[0037] With the development of instrumental analysis technology, test cards are commonly used in blood gas analyzers to test samples. This improves testing efficiency while ensuring sample integrity and accuracy. Test cards can measure electrochemical parameters to detect samples. For example, test cards used in blood gas analyzers can employ a three-electrode system (reference electrode, ion electrode, and counter electrode) to form a circuit for sample testing.

[0038] The test card, also known as a "blood gas and biochemistry test card," "blood gas test card," or "blood gas and biochemistry electrolyte test card," is primarily used for receiving and testing samples. During the use of a blood gas analyzer, the test card can be used to measure the pH value, hematocrit, and ion concentration (K+) in the sample. + Na + Cl - Ca 2+ Electrochemical parameters such as glucose, lactic acid, or partial pressures of O2 and CO2 can be measured. These parameters can generally be measured using electrochemical methods or AC impedance methods.

[0039] In some embodiments, the blood gas analyzer may include a device body and a reagent kit. The reagent kit is connected to the device body of the blood gas analyzer. The reagent kit is used to hold a liquid bag containing the sample to be tested. The device body can be connected to the reagent kit to extract the sample from the liquid bag for testing.

[0040] Please see Figures 1 to 3 , Figure 1 This is a schematic diagram of the structure of an embodiment of the test card of this application. Figure 2 This is a schematic diagram of the structure of one embodiment of the fixture of this application. Figure 3 yes Figure 1 An exploded perspective view of the fixture in the illustrated embodiment.

[0041] In some embodiments, such as Figure 1 As shown, the test card 300 includes a sample detection channel 301 and a reference chamber. The sample detection channel 301, also known as the "main liquid channel of the test card 300," is used for sample measurement. Specifically, a first electrode is provided in the sample detection channel 301, used to acquire the electrochemical parameters of the sample in the sample detection channel 301. A second electrode is provided in the reference chamber, used to acquire the electrochemical parameters of the reference solution in the reference chamber. Further, the test card 300 may also include several third electrodes, which are respectively connected to the first and second electrodes to acquire the electrochemical parameters measured by the first and second electrodes, and output them to a blood gas analyzer equipped with the test card 300. The blood gas analyzer can use the output electrochemical parameters to analyze the composition and other properties of the sample to obtain the measurement results of the sample.

[0042] It will be understood by those skilled in the art that this application Figure 1 The test card structure shown and Figure 2The fixture structure shown is only for illustrating the usage of both, and is intended to help better understand the test card and fixture in this application embodiment, rather than to limit the specific type and application scope of the test card in this application embodiment. In other words, the fixture provided in this application embodiment can also be applied to other types of test cards.

[0043] In some embodiments, the test card 300 further includes a sample detection channel 301, a liquid inlet 303, a liquid outlet 304, and a valve assembly. The valve assembly can be used to control the connection and disconnection of the liquid path between the sample detection channel 301 and the liquid inlet 303 and the liquid outlet 304. For ease of explanation, the "liquid path between the liquid inlet 303, the sample detection channel 301, and the liquid outlet 304" will be referred to as the "liquid path of the test card 300" or the "main liquid path of the test card 300" below.

[0044] It is understandable that during the above sample measurement operation, the following phenomenon may occur: Since the sample to be tested may contain solid substances, such as blood clots, these blood clots may block the main liquid path of the test card 300 or remain within the main liquid path of the test card 300 as the sample flows through at least one of the inlet 303, sample detection channel 301, and outlet 304, thus preventing the test card 300 from functioning properly. Those skilled in the art will understand that the blockage point in the main liquid path of the test card 300 can be at least one of the inlet 303, sample detection channel 301, and outlet 304, for example, it can be near the inlet 303 and / or outlet 304, and / or any point in the sample detection channel 301.

[0045] In practical use, to resolve issues such as clogged test card 300 channels or blood clots remaining within them, the most common solution is to replace the test card 300 with a new one. However, due to the fact that most test cards 300 require refrigerated storage or are subject to time and cost constraints, spare test cards 300 are generally not stockpiled. This necessitates after-sales service or card replacement in such situations. During after-sales service or card replacement, the instrument cannot be used normally, causing unnecessary inconvenience to users and increasing the cost of using the instrument.

[0046] To restore the normal use of the test card 300, this application embodiment provides a clamp 100 for unclogging the test card 300, thereby improving the reusability and service life of the test card 300. Figure 2 and Figure 3As shown, in some embodiments, the clamp 100 includes a first clamping arm 10, a second clamping arm 20, an operating member, and a connecting pipe 30. The second clamping arm 20 is movably connected to the first clamping arm 10, and when the second clamping arm 20 and the first clamping arm 10 are configured in a first relative posture, they are capable of clamping the test card 300. The operating member is disposed between the first clamping arm 10 and the second clamping arm 20, and is used to connect the liquid path of the test card 300 to the inlet 303, the sample detection channel 301, and the outlet 304. The first end of the connecting pipe 30 is configured to dock with a driving member, and the second end of the connecting pipe 30 is configured to dock with either the inlet 303 or the outlet 304 of the test card 300 in the first relative posture.

[0047] In the structural design of the clamp 100 provided in this application embodiment, the first clamping arm 10 is movably connected to the second clamping arm 20 so that the test card 300 to be cleared can be clamped when the two are in a first relative posture. Through the joint cooperation of the operating component, the guiding pipe 30, and the driving component, fluid, such as cleaning fluid or gas, can be injected into the main liquid path of the test card 300 in the connected state under the action of the driving component, or fluid can be drawn from the main liquid path of the test card 300 in the connected state through the driving component. In this way, as the fluid flows through the inlet 303, the sample detection channel 301, and the outlet 304, the main liquid path of the test card 300 blocked or blood clots remaining in the main liquid path of the test card 300 can be cleared until the blood clots are discharged from the main liquid path of the test card 300, thereby restoring the use of the test card 300. As a result, the reusability and service life of the test card 300 can be improved, while the replacement cost of the test card 300 and the instrument usage cost can be reduced.

[0048] Those skilled in the art will understand that when clearing the main liquid path of the test card 300, fluid can also flow through the first end of the connecting pipe 30, the outlet 304, the sample detection channel 301, and the inlet 303, thus also discharging blood clots from the main liquid path of the test card 300. In other words, by using the clamp 100 provided in this embodiment, fluid can be injected or extracted through either the outlet 304 or the inlet 303, both of which can discharge blood clots from the main liquid path of the test card 300. The specific method of use can be selected according to actual needs. Please refer to... Figures 4 to 6 , Figure 4 yes Figure 2 When the clamp in the illustrated embodiment is in the first relative posture, it is with Figure 1 A schematic diagram of the test card structure in the embodiment shown. Figure 5 yes Figure 2 When the clamp in the illustrated embodiment is in the second relative posture, it is with Figure 1 A schematic diagram of the test card structure in the embodiment shown. Figure 6 yes Figure 4 The diagram shows a cross-sectional view of the fixture and test card along the AA direction.

[0049] In some embodiments, such as Figure 2 , Figure 4 and Figure 6 As shown, the second clamping arm 20 and the first clamping arm 10 are configured in a first relative posture, meaning that the test card 300 to be cleared is clamped between the first clamping arm 10 and the second clamping arm 20, and the first clamping arm 10 and the second clamping arm 20 are in a snap-fit ​​connection. Those skilled in the art will understand that this first relative posture can also be referred to as a locked state or a snap-fit ​​state.

[0050] In some embodiments, when the second clamping arm 20 and the first clamping arm 10 are in a first relative posture, they can form a clamping space. The test card 300 can be accommodated in this clamping space so that the test card 300 can be clamped by the second clamping arm 20 and the first clamping arm 10. That is, when the second clamping arm 20 and the first clamping arm 10 are in the first relative posture, a clamping space can be formed for the test card 300.

[0051] In some embodiments, in the first relative posture, the second end of the conductive conduit 30 can be exposed in the clamping space and dock with the liquid inlet 303 or liquid outlet 304 of the test card 300. Specifically, the second end of the conductive conduit 30 can penetrate the first clamping arm 10 to be exposed in the clamping space, thereby docking with the liquid inlet 303 or liquid outlet 304 of the test card 300.

[0052] In some embodiments, such as Figure 5 As shown, after the unblocking operation is completed and the test card 300 is restored to normal use, the test card 300 can be removed from the clamp 100. Since the first clamping arm 10 is movably connected to the second clamping arm 20, the test card 300 can be removed by opening the first clamping arm 10 and the second clamping arm 20. At this time, the second clamping arm 20 and the first clamping arm 10 are configured in a second relative posture. This second relative posture can also be referred to as the released state. It should be noted that before clamping the test card 300 to be unblocked into the clamp 100, the state of the second clamping arm 20 and the first clamping arm 10 can also be the second relative state or the first relative state; this application does not impose specific limitations on this.

[0053] In some embodiments, the driving element can be a fluid transfer device and is configured to inject fluid into or extract fluid from the main liquid path of the test card 300. Specifically, the driving element can be one of a syringe, metering pump, injection pump, positive pressure source, or negative pressure source. The driving element can be used to apply pressure to the fluid within it, or to the fluid in the main liquid path of the test card 300, to inject fluid into the main liquid path of the test card 300 through the inlet 303 or outlet 304, or to extract fluid from the main liquid path of the test card 300.

[0054] In some embodiments, when using the clamp 100 provided in this application embodiment to perform a dredging operation on the test card 300 to be dredged, the first clamping arm 10 and the second clamping arm 20 are used to clamp the test card 300 to be dredged, and there are a variety of dredging methods. The dredging methods of the test card 300 are described in detail below.

[0055] Method 1: By controlling the operating components, the liquid path of the test card 300 is configured to connect the inlet 303, the sample detection channel 301, and the outlet 304. Further, a syringe is selected as the driving component, i.e., the pressure source, and positive pressure is applied to the main liquid path of the test card 300. The first end of the connecting pipe 30 is connected to the syringe, and the second end of the connecting pipe 30 is connected to the inlet 303. Under the action of positive pressure, the syringe injects the cleaning solution into the main liquid path of the test card 300 through the inlet 303, and then the cleaning solution flows through the inlet 303, the sample detection channel 301, and the outlet 304.

[0056] Specifically, by pressing the valve assembly to close it, the main liquid path of the test card 300 is configured to connect the inlet 303, sample detection channel 301, and outlet 304. The pressing method can be manual or automated. In other words, the main liquid path of the test card 300 is connected by controlling the operating component. Further, through manual or automated control, the syringe is activated and positive pressure is generated. Under the action of positive pressure, the syringe injects cleaning fluid into the main liquid path of the test card 300 through the inlet 303. The cleaning fluid then flows through the first end of the connecting pipe 30, the inlet 303, the sample detection channel 301, and the outlet 304, clearing any blood clots blocking or remaining in the main liquid path of the test card 300 until the blood clots are expelled, thus restoring the test card 300 to its usability. Thus, under the positive pressure of the syringe, the cleaning solution is injected into the main liquid path of the test card 300, causing blood clots in the main liquid path of the test card 300 to be discharged through the outlet 304. At the same time, the main liquid path of the test card 300 is also cleaned. In this way, the blockage in the main liquid path of the test card 300 is cleared and cleaned by the cleaning solution, thereby restoring the normal use of the test card 300.

[0057] Method 2: Unlike Method 1, cleaning fluid is injected into the main fluid path of the test card 300, and the syringe is controlled to generate negative pressure. Under this negative pressure, blood clots in the main fluid path of the test card 300 are drawn out along with the cleaning fluid and discharged through the outlet 304. Further, under negative pressure, cleaning fluid can continue to be drawn into the main fluid path of the test card 300 through the inlet 303 to clean it. Thus, the blockage in the main fluid path of the test card 300 is cleared and cleaned by the cleaning fluid, restoring the normal use of the test card 300. It is understood in the art that during this cleaning process, the syringe can also be switched to generate positive pressure. Under positive pressure, cleaning fluid can be injected into the cleared main fluid path of the test card 300 through the inlet 303 to clean it. The specific operation method can be selected according to actual needs. It should be noted that in method 2, it is not necessary to inject cleaning fluid first. Instead, the syringe can be directly controlled to generate negative pressure to draw out the liquid already present in the main fluid path of the test card 300 to aspirate the blood clot.

[0058] In some embodiments, the specific process of unblocking method 2 can be understood as follows: Cleaning fluid is injected into the main liquid path of the test card 300. After a portion of the cleaning fluid has been injected into the liquid path of the test card 300, the injection can be stopped. At this time, the syringe can be connected to the outlet 304, and negative pressure can be generated by the syringe. Thus, under the action of negative pressure, while the cleaning fluid is being drawn out, the blood clots in the main liquid path of the test card 300 can also be drawn out and discharged from the main liquid path of the test card 300 through the outlet 304.

[0059] In some embodiments, the specific process of unblocking method 2 can be understood as follows: Cleaning fluid is injected into the main liquid path of the test card 300. After a portion of the cleaning fluid has been injected into the liquid path of the test card 300, the injection can be stopped. At this time, the syringe can continue to be connected to the inlet 303, and the syringe can be controlled to generate negative pressure. Thus, under the action of negative pressure, while the cleaning fluid is being drawn out, the blood clots in the main liquid path of the test card 300 can also be drawn out and discharged from the main liquid path of the test card 300 through the inlet 303.

[0060] Method 3: Unlike method 1, gas, such as air, is injected into the main liquid path of the test card 300 through a syringe. This increases the pressure between the blockage point in the main liquid path of the test card 300 and the syringe, thereby driving the blood clot to be discharged from the main liquid path of the test card 300 through the outlet 304.

[0061] Method 4: Unlike Method 1, this method generates negative pressure in the syringe, creating a negative pressure between the blockage point in the main fluid path of the test card 300 and the syringe. Under this negative pressure, the blood clot in the main fluid path of the test card 300 is drawn out and discharged through the outlet 304.

[0062] In some embodiments, the specific process of unblocking method 4 can be understood as follows: after injecting the cleaning fluid into the main liquid path of the test card 300, the syringe can be connected to the outlet 304, and the syringe can be controlled to generate negative pressure. In this way, under the action of negative pressure, while the cleaning fluid is being drawn out, the blood clots in the main liquid path of the test card 300 can also be drawn out and discharged from the main liquid path of the test card 300 through the outlet 304.

[0063] In some embodiments, the specific process of unblocking method 4 can be understood as follows: after injecting the cleaning fluid into the main liquid path of the test card 300, the syringe can continue to be connected to the inlet 303, and the syringe can be controlled to generate negative pressure. In this way, under the action of negative pressure, while the cleaning fluid is being drawn out, the blood clots in the main liquid path of the test card 300 can also be drawn out and discharged from the main liquid path of the test card 300 through the inlet 303.

[0064] In some embodiments, the cleaning process in unblocking method 4 is similar to the cleaning process in unblocking method 2. After the blood clot is discharged, cleaning fluid can be injected or drawn in to clean the main fluid path of the test card 300. For details, please refer to the relevant content in unblocking method 2.

[0065] Method 5: Unlike Method 1, this method uses a positive pressure source as the driving element, i.e., a pressure source. The specific unblocking process is basically the same as in Method 1, and details can be found in the relevant content of Method 1. In some embodiments, similar to Method 3, gas can also be injected into the main liquid path of the test card 300 through a positive pressure source to expel blood clots. The specific unblocking process can be found in the relevant content of Method 3.

[0066] Method 6: Unlike Method 4, this method uses a negative pressure source as the driving element, i.e., a pressure source. The specific unblocking process is basically the same as in Method 4. In some embodiments, similar to Method 2, the cleaning fluid can also be drawn into the main fluid path of the test card 300 through a negative pressure source to unblock and clean the test card 300. For details, please refer to the relevant content in Method 2.

[0067] Those skilled in the art will understand that during any of the unblocking methods 1 to 6, the success of unblocking the test card 300 can be determined by detecting pressure changes in the main fluid path of the test card 300. If unblocking fails the first time, the pressure generated by the pressure source can be increased to attempt unblocking again, or the unblocking operation can be repeated multiple times until the blood clot is discharged from the main fluid path of the test card 300 through the outlet 304.

[0068] In some embodiments, in the above-described unblocking method 1, the second end of the connecting pipe 30 can be connected to the outlet 304, and the first end of the connecting pipe 30 can be connected to the syringe. The cleaning solution is then injected into the main liquid path of the test card 300 through the outlet 304 via the syringe. The cleaning solution flows through the outlet 304, the sample detection channel 301, and the inlet 303, so that the blood clots in the main liquid path of the test card 300 are discharged through the inlet 303. The specific unblocking method is basically similar to the above-described unblocking method 1. For details, please refer to the relevant content in unblocking method 1.

[0069] In other words, when the second end of the connecting pipe 30 is connected to the outlet 304, fluid, such as cleaning fluid or air, can flow in reverse to expel blood clots from the main fluid path of the test card 300. Furthermore, cleaning fluid can also be injected through the outlet 304 for reverse flow cleaning, which can also complete the unblocking and cleaning of the test card 300. Similarly, in any of the unblocking methods 2 to 6 described above, the second end of the connecting pipe 30 can be connected to the outlet 304, and blood clots in the main fluid path of the test card 300 can be discharged through the inlet 303. For details, please refer to the relevant content in the above unblocking methods.

[0070] In some embodiments, a metering pump or a syringe pump can also be selected as the driving component. In this case, any one of the above-mentioned unblocking methods 1 to 6 is applicable to a metering pump or a syringe pump. For details, please refer to the relevant content of unblocking methods 1 to 6, which will not be elaborated here.

[0071] In some embodiments, the first clamping arm 10 can be made of a rigid material, such as plastic, resin, or polymer. Specifically, the first clamping arm 10 can be made of acrylonitrile-butadiene-styrene plastic, polydimethylsiloxane, polycarbonate, polymethyl methacrylate, polystyrene, polypropylene, cyclic olefin copolymers, etc., and can be manufactured by injection molding, CNC machine tool processing, or 3D printing. Similarly, the second clamping arm 20 can also be made of a similar material.

[0072] In some embodiments, the shape of the first clamping arm 10 or the shape of the second clamping arm 20 may be U-shaped or L-shaped. The clamp 100 formed by the two can be in a closed loop or a non-closed shape in the first relative posture.

[0073] It should be noted that, unless otherwise described in the text, the connection relationship between the liquid inlet 303, the sample detection channel 301, the liquid outlet 304 and the guiding pipe 30 will be described in the following embodiments using the unblocking method 1 as an example. For other unblocking methods, those skilled in the art can make an analogy based on the unblocking method 1, and this application will not describe them in detail.

[0074] Please see Figure 7 and combined Figures 2 to 6 , Figure 7 yes Figure 4 The diagram shows a cross-sectional view of the fixture and test card along the BB direction.

[0075] In some embodiments, the conduit 30 can be a conduit disposed inside the first clamping arm 10, that is, the conduit 30 passes through the first clamping arm 10. Specifically, the first end of the conduit 30 can be located outside the first clamping arm 10, for example, protruding from a surface of the first clamping arm 10 that is different from the clamping surface. In some specific embodiments, this other surface is a side surface adjacent to the clamping surface of the first clamping arm 10. The second end of the conduit 30 can also protrude from the clamping surface of the first clamping arm 10. The clamping surface of the first clamping arm 10 can be the surface of the first clamping arm 10 facing the second clamping arm 20. In other words, both ends of the conduit 30 protrude from the first clamping arm 10. Of course, in some embodiments, the second end of the conduit 30 can also be flush with the clamping surface of the first clamping arm 10.

[0076] In some embodiments, the first end of the conductive pipe 30 is sealed to the driving component. This sealing connection can include threaded connections, sealing ring connections, etc. Specifically, the outer thread of the first end of the conductive pipe 30 can mate with the inner thread of the connecting structure of the driving component, and the first end of the conductive pipe 30 is inserted into the connecting structure of the driving component and sealed by the thread. Alternatively, a sealing ring can be provided between the outer wall of the first end of the conductive pipe 30 and the inner wall of the connecting structure of the driving component, and the first end of the conductive pipe 30 forms a sealed connection with the connecting structure of the driving component through the sealing ring. Similarly, the second end of the conductive pipe 30 is also sealed to the inlet 303 or the outlet 304, and the specific sealing connection method is basically the same as that between the first end of the conductive pipe 30 and the driving component; for details, please refer to the relevant content regarding the sealing connection between the two in this document.

[0077] In some embodiments, when clearing the test card 300, a connecting pipe or adapter fitting 70 (such as...) can also be used. Figure 8(as shown) or adapter structure 14 (as shown) Figure 8 The second end of the conductive pipe 30 is connected to the inlet 303 or the outlet 304 in a manner shown in the figure. For details, please refer to the specific description of the following embodiments.

[0078] In some embodiments, the connecting pipe 30 can be a connecting pipe capable of docking with the inlet 303 or outlet 304 of the drive unit and the test card 300 respectively in a first relative posture. Specifically, the connecting pipe 30 includes a main body section 31 and a bent section 32. The first end of the main body section 31, that is, the first end of the connecting pipe 30, is configured to dock with the drive unit. The bent section 32 passes through the first clamping arm 10, and the first end of the bent section 32 is connected to the second end of the main body section 31. The second end of the bent section 32, that is, the second end of the connecting pipe 30, is configured to dock with the inlet 303 or outlet 304 to connect the connecting pipe 30 with the liquid path of the test card 300.

[0079] Specifically, the main body section 31 and the bend section 32 of the connecting pipe 30 can form an L-shaped connecting pipe. That is to say, the overall shape of the connecting pipe 30 can be designed in an L-shape. Of course, the overall shape of the connecting pipe 30 is not limited to an L-shape. For example, the structure of the connecting pipe 30 can also be one of a straight pipe, a curved pipe, an arc pipe, etc., as long as it can achieve the function of "the connecting pipe 30 connecting to the main liquid circuit of the drive component and the test card 300 respectively".

[0080] In some embodiments, the first end of the connecting pipe can dock with the drive component. The second end of the connecting pipe passes through the first clamping arm 10 and, in the first relative posture, is configured to dock with the inlet 303 or the outlet 304, thereby connecting the conductive pipe 30 with the main liquid path of the test card 300. Optionally, the main body section 31 and the bend section 32 of the conductive pipe 30 can be integrally formed to ensure the overall sealing of the conductive pipe 30.

[0081] Specifically, taking unblocking method 1 as an example, in the first relative posture, the test card 300 is clamped between the first clamping arm 10 and the second clamping arm 20. The second end of the bent section 32 is connected to the inlet 303, and the first end of the main body section 31 is connected to the driving component. In this embodiment, a syringe is used as the driving component. Further, the syringe is activated and positive pressure is generated. Under the action of positive pressure, the syringe injects fluid, such as cleaning fluid, into the inlet 303 through the main body section 31 and the bent section 32. In this way, the cleaning fluid can flow through the main body section 31, the bent section 32, the inlet 303, the sample detection channel 301, and the outlet 304 to unblock the main liquid path of the test card 300 or to clear blood clots remaining in the main liquid path of the test card 300 until the blood clots are discharged from the main liquid path of the test card 300, thereby restoring the use of the test card 300. Thus, under the positive pressure of the syringe, the cleaning solution is injected into the main liquid path of the test card 300, causing blood clots in the main liquid path of the test card 300 to be discharged through the outlet 304. At this point, the blockage in the main liquid path of the test card 300 is cleared and cleaned by the cleaning solution, thereby restoring the normal operation of the test card 300.

[0082] In some embodiments, the second end of the bent section 32 may protrude from the clamping surface of the first clamping arm 10, or may be flush with the clamping surface of the first clamping arm 10.

[0083] In some embodiments, the outer diameter of the bent section 32 is adapted to the inner diameter of the inlet 303 or the inner diameter of the outlet 304; for example, the former is less than or equal to the latter. Specifically, when the former is less than the latter, the difference between the former and the latter is within 10%. Thus, when the second end of the bent section 32 is mated with the inlet 303 or the outlet 304, the second end of the bent section 32 can be tightly embedded in the inlet 303 or the outlet 304, thereby ensuring a tight seal when the two are connected.

[0084] In some embodiments, the first end of the main body segment 31 extends beyond the first clamping arm 10 and is configured to dock with a drive element, for example, the first end of the main body segment 31 can dock with a syringe. That is, the first end of the main body segment 31 extends beyond the first clamping arm 10 to facilitate docking with the drive element, thereby facilitating fluid injection or extraction operations and improving the reliability of the connection between the connecting pipe 30 and the drive element. Specifically, the length of the first end of the main body segment 31 extending beyond the first clamping arm 10 can be set according to actual needs, for example, such as... Figure 7 As shown, with the test card 300 clamped in the fixture 100 as a reference, the length exceeds the distance between the side of the test card 300 and the inlet 303 or the distance between the side of the test card 300 and the outlet 304.

[0085] In some embodiments, the second end of the connecting pipe 30 is configured to directly connect with the inlet 303 or the outlet 304 in a first relative posture. That is, one end of the connecting pipe 30 is located outside the first clamping arm 10, and the other end protrudes from the clamping surface of the first clamping arm 10 so that it can directly connect with the inlet 303 or the outlet 304 in the first relative posture, thereby connecting the connecting pipe 30 with the main liquid path of the test card 300. It should be noted that in the first relative posture, the second end of the connecting pipe 30 directly connects with the inlet 303 or the outlet 304, and its clearing process is basically the same as the clearing process of the connecting pipe 30 including the main body section 31 and the bend section 32, as described above.

[0086] In some embodiments, the conduit 30 may be made of a rigid material similar to or the same as that of the first clamping arm 10. The conduit 30 may be manufactured together with the first clamping arm 10 by injection molding, CNC machine tool processing or 3D printing.

[0087] Please see Figure 8 , Figure 8 This is a schematic diagram of the structure of one embodiment of the fixture of this application. In some embodiments, such as Figure 8 As shown, the fixture 100 also includes a connecting pipe 70. The second end of the conductive pipe 30 is configured to connect with the inlet 303 or outlet 304 via the connecting pipe 70 in a first relative posture, thereby connecting the conductive pipe 30 to the liquid path of the test card 300. In other words, by connecting the connecting pipe 70 to the second end of the conductive pipe 30, the conductive pipe 30 and the connecting pipe 70 together form a connecting pipe, which, in the first relative posture, can respectively connect to the inlet 303 or outlet 304 of the drive unit or the test card 300. Specifically, the first end of the connecting pipe 70 can be inserted into or fitted onto the second end of the conductive pipe 30, for example, the first end of the connecting pipe 70 can be inserted into or fitted onto the second end of the bend 32. The second end of the connecting pipe 70 then connects to the inlet 303 or outlet 304 in the first relative posture. Thus, by setting the adapter pipe 70, the main liquid path of the conductive pipe 30 and the test card 300 are connected, and fluid is injected into the inlet 303 or the outlet 304 through the conductive pipe 30 and the adapter pipe 70. In this way, by setting the adapter pipe 70, the conductive pipe 30 can also be connected to the inlet 303 or the outlet 304 of the drive unit and the test card 300 respectively in the first relative posture.

[0088] In some embodiments, the second end of the connecting pipe 30 and the adapter 70 are sealed together, and the specific sealing connection method is basically the same as the sealing connection method between the first end of the connecting pipe 30 and the driving component. For example, the outer wall thread of the second end of the connecting pipe 30 can mate with the inner wall thread of the first end of the adapter 70, and the second end of the connecting pipe 30 is inserted into the first end of the adapter 70 and sealed by the thread. Alternatively, a sealing ring is provided between the outer wall of the second end of the connecting pipe 30 and the inner wall of the first end of the adapter 70, so that the second end of the connecting pipe 30 and the first end of the adapter 70 form a sealed connection through the sealing ring.

[0089] In some embodiments, the adapter 70 and the connecting pipe 30 can be detachably connected. That is, when it is necessary to unclog the test card 300, the adapter 70 can be directly inserted into the second end of the connecting pipe 30 for use. This facilitates the user's cleaning, storage, maintenance, or replacement of the adapter 70. Of course, in some embodiments, the adapter 70 and the connecting pipe 30 can also be fixedly connected to further improve the sealing and stability of the connection between the two.

[0090] In some embodiments, the adapter 70 can be made of flexible or elastic materials such as metal alloys, plastics, or rubber. Specifically, the adapter 70 can be a flexible or elastic tube such as a stainless steel hose, a PVC hose, or a polyethylene hose. This allows the adapter 70 to easily connect to the inlet 303 / outlet 304 of the drive unit and the test card 300, respectively, and improves the sealing of the connection to a certain extent.

[0091] In some embodiments, the material of the adapter 70 can be a hard metal alloy, plastic, or rubber. For example, the adapter 70 can be a rigid pipe such as a galvanized pipe, a steel-plastic composite pipe, or an aluminum-plastic composite pipe.

[0092] Please see Figure 9 , Figure 9 This is a schematic diagram of the structure of one embodiment of the fixture of this application. In some embodiments, such as Figure 9As shown, a connecting structure 14 is also provided on the first clamping arm. The second end of the conductive pipe 30 is configured to connect with the inlet 303 or the outlet 304 via the connecting structure 14 in a first relative posture. Specifically, the connecting structure 14 can be provided on the clamping surface of the first clamping arm 10, for example, it can be a protrusion provided on the clamping surface of the first clamping arm 10. The first end of the connecting structure 14 can be inserted into the second end of the conductive pipe 30, for example, the first end of the connecting structure 14 can be inserted into the second end of the bent section 32. The second end of the connecting structure 14 then connects with the inlet 303 or the outlet 304 in the first relative posture. In this way, by providing the connecting structure 14, the conductive pipe 30 is connected to the main liquid path of the test card 300, and fluid is injected into the inlet 303 or the outlet 304 through the conductive pipe 30 and the connecting structure 14.

[0093] Similarly, the second end of the connecting pipe 30 is also sealed to the transition structure 14. The specific sealing connection method is basically the same as the sealing connection method between the second end of the connecting pipe 30 and the transition pipe fitting 70. For details, please refer to the relevant content in the text regarding the sealing connection between the two.

[0094] In some embodiments, the first clamping arm 10 is provided with a mounting hole 102, and the conductive pipe 30 is inserted into the mounting hole 102. The mounting hole 102 can be a through hole penetrating the clamping surface of the first clamping arm 10. Specifically, the conductive pipe 30 can include a conductive element, which is tubular and made of metal. A first end of the conductive element is configured to dock with a driving element, and a second end of the conductive element is configured to dock with the inlet 303 or outlet 304 of the test card 300 in a first relative posture. Specifically, the conductive element can be inserted into the mounting hole 102, with the first and second ends of the conductive element exposed in the mounting hole 102. The first end of the conductive element is used to dock with the driving element, and the second end of the conductive element is used for the inlet 303 or outlet 304. Thus, the conductive element can be provided to inject fluid into the inlet 303 or outlet 304.

[0095] The first end of the conductive element can serve as the first end of the conductive pipe 30. Similarly, the first end of the conductive element and the driving element are sealed together. The second end of the conductive element can serve as the second end of the conductive pipe 30. The second end of the conductive element and the inlet 303 or outlet 304 are sealed together. The specific sealing connection method is basically the same as the sealing connection method between the first end of the conductive pipe 30 and the driving element mentioned above. For details, please refer to the relevant content in the text regarding the sealing connection between the two.

[0096] In some embodiments, the surface of the first clamping arm 10 facing the second clamping arm 20 has a positioning area 101, which is configured to fix the positioning part 33 of the test card 300 so as to realize the positioning docking of the conductive part with the liquid inlet 303 or the liquid outlet 304. The first clamping arm 10 is provided with a positioning post 13, which is located in the positioning area 101.

[0097] In some embodiments, the conductive element can be made of rigid materials such as plastic, resin, polymer, or metal alloy to ensure connection stability when the two ends of the conductive element are connected to the inlet 303 / outlet 304 and the driving element, respectively. Specifically, the conductive element can be made of acrylonitrile-butadiene-styrene plastic, polydimethylsiloxane, polycarbonate, polymethyl methacrylate, polystyrene, polypropylene, cyclic olefin copolymer, stainless steel, etc. Optionally, the conductive element can be a steel needle.

[0098] In some embodiments, the conductive element can be a hollow structure. The conductive element includes a first conductive portion and a second conductive portion. The first conductive portion serves as the main body segment 31 of the conductive pipe 30, and the second conductive portion serves as the bent segment 32 of the conductive pipe 30. A first end of the first conductive portion is configured to dock with a driving member. The second conductive portion extends through the first clamping arm 10, and its first end is connected to the second end of the first conductive portion. The second end of the second conductive portion is configured to dock with an inlet 303 or an outlet 304 to connect the conductive element to the liquid path of the test card 300.

[0099] In some embodiments, the first end of the first conductive portion is located outside the first clamping arm 10 and is configured to dock with a syringe.

[0100] In some embodiments, the conduit may further include a rubber tube, which is sleeved on the first end of the conductor, and the conductor is connected to the drive member through the rubber tube.

[0101] In some embodiments, the second end of the second conductive part is configured to connect with the inlet 303 or the outlet 304 via the adapter 70 in a first relative posture, thereby connecting the conductive part with the liquid path of the test card 300. That is, by providing the conductive part, the driving member can inject fluid into the main liquid path of the test card 300, or extract fluid from the main liquid path of the test card 300.

[0102] In some embodiments, the conductor may be L-shaped. Alternatively, the conductor may be linear, such as a straight line. Specifically, the first conductor 31 and the second conductor 32 may also form an L-shaped connecting pipe, or a linear connecting pipe. Optionally, the first conductor 31 and the second conductor 32 may be integrally formed, that is, the conductor may be a one-piece structure to ensure the overall sealing of the pipe within the conductor.

[0103] Please refer to it again. Figure 2-3 as well as Figure 5-6 In some embodiments, the clamping surface of the first clamping arm 10 has a positioning area 101, which is configured to fix the positioning part 33 of the test card 300 so as to achieve positioning and docking of the second end of the conductive pipe 30 with the liquid inlet 303 or the liquid outlet 304. Specifically, the positioning part 33 may be spaced apart from the liquid inlet 303 or the liquid outlet 304.

[0104] In some embodiments, the positioning area 101 may be a recessed groove on the clamping surface of the first clamping arm 10, or the positioning area 101 may be formed by a protruding structure on the clamping surface of the first clamping arm 10. In other words, the positioning area 101 may be recessed into the clamping surface of the first clamping arm 10 or protrude from the clamping surface of the first clamping arm 10, as long as it can achieve the function of limiting the position of the test card 300.

[0105] In some embodiments, the first clamping arm 10 is provided with a positioning post 13, which is located in the positioning area 101 and spaced apart from the bending section 32. The positioning part 33 is provided with a first receiving groove 305, and the positioning post 13 is configured to be embedded in the first receiving groove 305 to fix the test card 300 to the first clamping arm 10. In this way, by setting the positioning post 13 of the first clamping arm 10 and the positioning part 33 of the test card 300, the positioning post 13 of the first clamping arm 10 can be embedded in the positioning part 33 of the test card 300. On the one hand, this can make the test card 300 stably located on the clamping surface of the first clamping arm 10, and on the other hand, it can also achieve the positioning docking of the second end of the conductive pipe 30 with the liquid inlet 303 or the liquid outlet 304.

[0106] In some embodiments, "the operating element is positioned between the first clamping arm 10 and the second clamping arm 20" can be understood as meaning that, in a first relative posture, the operating element can be positioned between the first clamping arm 10 and the second clamping arm 20 through manual or automated control. Optionally, in a second relative posture, the operating element can be positioned on the second clamping arm 20. When it is necessary to clear the blockage in the test card 300, the operating element can be controlled, for example, by pressing the operating element, to position it between the first clamping arm 10 and the second clamping arm 20, thereby squeezing the valve assembly of the test card 300 until the valve assembly is closed. That is, in the first relative posture, the operating element can be positioned between the first clamping arm 10 and the second clamping arm 20.

[0107] In some embodiments, the operating element includes a pressing member 40 disposed on the clamping surface of the second clamping arm 20. The pressing member 40 is configured at a position on the surface of the first clamping arm 10 to squeeze the valve of the test card 300 in a first relative posture to connect the liquid inlet 303, the sample detection channel 301, and the liquid outlet 304. The clamping surface of the second clamping arm 20 can be the surface of the second clamping arm 20 facing the first clamping arm 10. Specifically, in the first relative posture, the pressing member 40 can be manually or automatically controlled to squeeze the valve assembly of the test card 300 until the valve assembly is closed, thereby connecting the main liquid path of the test card 300. Of course, in some embodiments, the pressing member 40 can also penetrate the second clamping arm 20, and in the first relative posture, by external force, such as manual or automated control, the pressing member 40 can be pressed towards the first clamping arm 10 so that the pressing member 40 can squeeze the valve assembly until the valve assembly is closed.

[0108] In some embodiments, the operating element can be a push rod control structure, such as a spring, push rod, or other elastic mechanism.

[0109] In some embodiments, the clamping surface of the second clamping arm 20 is provided with a second receiving groove 201, and the pressing member 40 is at least partially received in the second receiving groove 201, with the pressing end of the pressing member 40 protruding from the clamping surface of the second clamping arm 20. Specifically, the pressing member 40 may partially expose the second receiving groove 201, with the pressing end protruding from the clamping surface of the second clamping arm 20. Thus, in the first relative posture, the valve assembly is directly squeezed by the pressing end to close the valve assembly. Alternatively, the pressing member 40 may also be fully received in the second receiving groove 201, that is, the pressing end may be flush with the clamping surface of the second clamping arm 20, or the pressing end may not be exposed on the clamping surface of the second clamping arm 20. Thus, in the first relative posture, the pressing member 40 is pressed towards the first clamping arm 10 by external force, so that the pressing end can squeeze the valve assembly until the valve assembly is closed.

[0110] In some embodiments, the pressing member 40 includes at least two pressing members 40. The two pressing members 40 respectively squeeze the first valve 34 and the second valve 35 of the test card 300 to connect the liquid inlet 303, the sample detection channel 301, and the liquid outlet 304.

[0111] In some embodiments, the pressing member 40 includes a pressing portion 41 and an elastic portion 42. The elastic portion 42 is sleeved on the pressing portion 41 and received in a second receiving groove 201. The pressing portion 41 has a pressing end for pressing the valve assembly. Specifically, the elastic portion 42 is sleeved on the end of the pressing portion 41 opposite to the pressing end. In a first relative posture, the elastic portion 42 is configured to provide elastic force to the pressing portion 41 to achieve pressing of the valve assembly by the pressing end. The elastic portion 42 may be a pressure spring.

[0112] In some embodiments, the clamp 100 further includes a sealing member 50 sleeved on the pressing member 40. In a first relative posture, the sealing member 50 is configured to be located between one pressing member 40 and the first valve 34, and between the other pressing member 40 and the second valve 35. Specifically, the sealing member 50 may cover the second receiving groove 201 to receive the elastic portion 42 in the second receiving groove 201. Further, the sealing member 50 has a through hole, one end of the pressing portion 41 sleeved with the elastic portion 42 is received in the second receiving groove 201, and the other end of the pressing portion 41 passes through the through hole of the sealing member 50 so that the pressing end protrudes from the sealing member 50. Thus, in the first relative posture, the elastic portions 42 of the two pressing members 40 respectively provide elastic force to the pressing portion 41, the pressing ends of the two pressing members 40 respectively press the first valve 34 and the second valve 35, and the sealing member 50 is located between one pressing member 40 and the first valve 34, and between the other pressing member 40 and the second valve 35.

[0113] In some embodiments, the seal 50 may be made of a flexible or elastic material. Specifically, the seal 50 may be silicone.

[0114] In some embodiments, the seal 50 is in the form of a sheet or plate.

[0115] In some embodiments, the first clamping arm 10 has a first fixed shaft 11 and a second fixed shaft 12 at its opposite ends, and the first end of the second clamping arm 20 is sleeved on the first fixed shaft 11 to be movably connected to one end of the first clamping arm 10. The first clamping arm 10 and the second clamping arm 20 can be rotatably connected around the first fixed shaft 11, in which case the first fixed shaft 11 acts as a pivot. That is, the first clamping arm 10 and the second clamping arm 20 can be rotatably connected through the pivot to achieve switching between different relative postures, such as switching between the first relative posture and the second relative posture, that is, to achieve switching between the open and closed states of the two.

[0116] In some other embodiments, the first clamping arm 10 and the second clamping arm 20 can also switch between their open and closed states through mechanical connection methods such as snap-fit ​​or threaded connection.

[0117] In some embodiments, the clamp 100 further includes a fastener 60 movably connected to the second fixed shaft 12. The fastener 60 is configured to engage the other end of the first clamping arm 10 with the second end of the second clamping arm 20. That is, the first clamping arm 10 and the second clamping arm 20 can be locked and released through the fastener 60, i.e., by setting the fastener 60, different relative postures can be switched between the two.

[0118] In some embodiments, the fastener 60 includes a torsion spring 61 and a latch 62. The torsion spring 61 and the latch 62 are movably connected to the second fixed shaft 12. In a first relative posture, the first force-bearing end of the torsion spring 61 is configured to abut against one side of the test card 300 or against the first clamping arm 10, and the second force-bearing end of the torsion spring 61 is configured to abut against the first end of the latch 62, providing a spring force to drive the latch 62 to rotate towards the second clamping arm 20. That is, the spring force provided by the torsion spring 61 can drive the latch 62 to rotate towards the second clamping arm 20, thereby allowing the second end of the second clamping arm 20 to lock onto the other end of the first clamping arm 10, or allowing the second end of the second clamping arm 20 to be released from the other end of the first clamping arm 10. Thus, by movably connecting the torsion spring 61 and the latch 62 to the second fixed shaft 12, different relative postures can be flexibly switched, improving the user experience.

[0119] In some embodiments, the clamp 100 may not have fasteners 60; instead, the first clamping arm 10 and the second clamping arm 20 may be connected by magnetic components. Specifically, the second end of the first clamping arm 10 is provided with a first magnetic attraction element, and the second end of the second clamping arm 20 is provided with a second magnetic attraction element. Thus, the first magnetic attraction element at the second end of the first clamping arm 10 and the second magnetic attraction element at the second end of the second clamping arm 20 attract each other, achieving a connection between the second ends of the first clamping arm 10 and the second clamping arm 20, thereby maintaining a first relative posture between the first clamping arm 10 and the second clamping arm 20.

[0120] In some embodiments, both the first magnetic attractor and the second magnetic attractor are magnets. Alternatively, one of the first magnetic attractor and the second magnetic attractor is a magnet, and the other is a metal that can be attracted by a magnet, such as iron, nickel, cobalt, dysprosium, carbon steel, etc.

[0121] In some embodiments, one end of the first clamping arm 10 is connected to the first end of the second clamping arm 20, and the other end of the first clamping arm 10 is connected to the second end of the second clamping arm 20, so that the first clamping arm 10 and the second clamping arm 20 maintain a first relative posture and form a clamping space. This clamping space is configured to clamp the test card 300. That is, by adjusting the connection method between the first clamping arm 10 and the second clamping arm 20, the first clamping arm 10 and the second clamping arm 20 can always maintain the first relative posture to form a fixture 100 with an integral structure.

[0122] Specifically, the connection between one end of the first clamping arm 10 and the first end of the second clamping arm 20 is a detachable connection, such as a snap-fit, plug-in, or threaded mechanical connection. For example, one end of the first clamping arm 10 is snapped into the first end of the second clamping arm 20, and the other end of the first clamping arm 10 is snapped into the second end of the second clamping arm 20, so that the first clamping arm 10 and the second clamping arm 20 maintain a first relative posture and form a clamping space. Further, by adjusting the snap-fit ​​method between the first clamping arm 10 and the second clamping arm 20, a clamping space with an adjustable size can be formed to clamp or release the test card 300. Specifically, before the first relative posture, the second clamping arm 20 can be pulled away from the clamping surface of the first clamping arm 10 to form a larger clamping space, so that the test card 300 to be cleared can be embedded into the clamping space, and the test card 300 can be fixed to the first clamping arm 10 by the positioning post 13 of the first clamping arm 10 and the positioning part 33 of the test card 300. Then, the second clamping arm 20 can be pressed towards the clamping surface of the first clamping arm 10 to reduce the size of the clamping space, thereby firmly clamping the test card 300 between the first clamping arm 10 and the second clamping arm 20. When the unclogging and cleaning operation of the test card 300 is completed, the second clamping arm 20 can be pulled away from the clamping surface of the first clamping arm 10 to release and remove the test card 300, thereby improving the convenience of use.

[0123] Similarly, when the connection between one end of the first clamping arm 10 and the first end of the second clamping arm 20 is a plug-in connection or a threaded connection, it can not only keep the first clamping arm 10 and the second clamping arm 20 in a first relative posture and form a clamping space, but also form a clamping space whose size can be changed, so as to clamp or release the test card 300.

[0124] In some embodiments, the clamping surface of the first clamping arm 10 is provided with an opening of a first through hole, the first through hole penetrating the first clamping arm 10, and the second end of the conductive member passing through the first through hole. The conductive member can be driven to pass through the first through hole and move toward the clamping surface of the second clamping arm 20 until the second end of the conductive member aligns with the inlet 303 or the outlet 304. That is, the conductive member can be designed as a press-type component on the first clamping arm 10. In the first relative posture, the conductive member can be pressed manually or automatically to align with the inlet 303 or the outlet 304.

[0125] In some embodiments, the clamping surface of the second clamping arm 20 is provided with a second through hole, which extends through the second clamping arm 20. The first end of the operating member passes through the second through hole, and the operating member can be driven to pass through the second through hole and move toward the clamping surface of the first clamping arm 10 until the operating member can squeeze the valve assembly to connect the inlet 303, the sample detection channel 301, and the outlet 304. That is, the operating member can also be designed as a press-type component on the second clamping arm 20. In the first relative posture, the operating member can be pressed manually or automatically to squeeze the valve assembly.

[0126] In some embodiments, the clamping space is either a closed ring or a non-closed shape. That is, the two ends of the first clamping arm 10 and the two ends of the second clamping arm 20 are respectively engaged in a one-to-one manner, thus forming a closed ring clamping space. Alternatively, one end of the first clamping arm 10 is engaged with one end of the second clamping arm 20, thus forming a non-closed clamping space, such as a U-shaped clamping space.

[0127] In summary, in the structural design of the clamp 100 provided in this application embodiment, the first clamping arm 10 is movably connected to the second clamping arm 20 to clamp the test card 300 to be cleared when the two are in a first relative posture. Through the joint cooperation of the operating component, the guiding pipe 30, and the driving component, fluid, such as cleaning fluid and / or gas, can be injected into the main liquid path of the test card 300 in the connected state under the action of the driving component, or fluid can be drawn from the main liquid path of the test card 300 in the connected state through the driving component. In this way, as the fluid flows through the inlet 303, the sample detection channel 301, and the outlet 304, the main liquid path of the test card 300 that is blocked or the blood clots remaining in the main liquid path of the test card 300 can be cleared until the blood clots are discharged from the main liquid path of the test card 300, thereby restoring the use of the test card 300. As a result, the reusability and service life of the test card 300 can be improved, while the replacement cost of the test card 300 and the instrument usage cost can be reduced.

[0128] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A clamp for unblocking test cards, characterized in that, The clamp includes: First clamping arm; and A second clamping arm, movably connected to the first clamping arm, is configured to hold the test card when the second and first clamping arms are in a first relative posture; and... A conductive conduit, wherein a first end of the conductive conduit is configured to dock with a drive component, and a second end of the conductive conduit is configured to dock with the inlet or outlet of the test card in the first relative posture.

2. The clamp according to claim 1, characterized in that, Also includes: An operating component, located between the first clamping arm and the second clamping arm, is used to connect the liquid path of the test card to the inlet, sample detection channel, and outlet.

3. The clamp according to claim 2, characterized in that, The conductive conduit includes: The main body segment, the first end of which is configured to interface with the drive element; and A bent section extends through the first clamping arm, and the first end of the bent section is connected to the second end of the main body section. The second end of the bent section is configured to connect with the liquid inlet or the liquid outlet to connect the conductive pipe with the liquid path of the test card.

4. The clamp according to claim 3, characterized in that, The driving component is a fluid transfer device and is configured to inject fluid into the liquid path of the test card or extract fluid from the liquid path of the test card. The first end of the main body segment is located outside the first clamping arm and is configured to dock with the drive unit.

5. The clamp according to claim 4, characterized in that, The surface of the first clamping arm facing the second clamping arm has a positioning area, which is configured to fix the positioning part of the test card so as to achieve positioning docking of the second end of the bent section with the liquid inlet or the liquid outlet.

6. The clamp according to claim 5, characterized in that, The first clamping arm is provided with a positioning post, which is located in the positioning area and is spaced apart from the bending section; The positioning part is provided with a first receiving groove, and the positioning post is configured to be embedded in the first receiving groove so that the test card is fixed to the first clamping arm.

7. The clamp according to any one of claims 2 to 6, characterized in that, The operating element includes a pressing member disposed on the surface of the second clamping arm facing the first clamping arm. The pressing member is positioned on the surface of the first clamping arm to squeeze the valve of the test card in the first relative posture to connect the liquid inlet, the sample detection channel, and the liquid outlet.

8. The clamp according to claim 7, characterized in that, The second clamping arm has a second receiving groove on its surface facing the first clamping arm. The pressing member is at least partially received in the second receiving groove, and the pressing end of the pressing member protrudes from the clamping surface of the second clamping arm.

9. The clamp according to claim 7, characterized in that, The operating component includes two or more of the pressing components, wherein the two pressing components respectively squeeze the first valve and the second valve of the test card to connect the liquid inlet, the sample detection channel, and the liquid outlet; The clamp further includes a seal sleeved on the pressing member, the seal being configured to be located between one of the pressing members and the first valve and between the other pressing member and the second valve in the first relative posture.

10. The clamp according to claim 8, characterized in that, The pressing component includes a pressing part and an elastic part. The elastic part is sleeved on the pressing part and accommodated in the second receiving groove. The pressing part has a pressing end for pressing the valve.

11. The clamp according to claim 7, characterized in that, The first clamping arm has a first fixed shaft and a second fixed shaft at its opposite ends, and the first end of the second clamping arm is sleeved on the first fixed shaft to be movably connected to one end of the first clamping arm. The clamp further includes a fastener movably connected to the second fixed shaft, the fastener being configured to engage the other end of the first clamping arm with the second end of the second clamping arm; or The second end of the first clamping arm is magnetically connected to the second end of the second clamping arm.

12. The clamp according to claim 11, characterized in that, The fasteners include: A torsion spring, movably connected to the second fixed shaft; and The latch is movably connected to the second fixed shaft; In the first relative posture, the first force-bearing end of the torsion spring is configured to abut against one side of the test card or against the first clamping arm, and the second force-bearing end of the torsion spring is configured to abut against the first end of the latch, so as to provide an elastic force to drive the latch to turn towards the second clamping arm.

13. The clamp according to any one of claims 1-6 and 8-12, characterized in that, The second end of the conductive pipe is configured to be able to directly connect with the inlet or the outlet in the first relative posture. or, The clamp further includes an adapter pipe, wherein the second end of the conductive pipe is configured to connect with the inlet or the outlet via the adapter pipe in the first relative posture, thereby connecting the conductive pipe to the liquid path of the test card; or, The first clamping arm is also provided with a connecting structure, and the second end of the conductive pipe is configured to be able to connect with the liquid inlet or the liquid outlet through the connecting structure in the first relative posture.

14. The clamp according to any one of claims 1-6 and 8-12, characterized in that, The first clamping arm is provided with a mounting hole, and the conductive pipe is inserted into the mounting hole.

15. The clamp according to any one of claims 1-6 and 8-12, characterized in that, One end of the first clamping arm is connected to the first end of the second clamping arm, and the other end of the first clamping arm is connected to the second end of the second clamping arm, so that the first clamping arm and the second clamping arm maintain the first relative posture to form a clamping space, which is configured to clamp the test card.

16. The clamp according to claim 2, characterized in that, The first clamping arm is provided with a mounting hole, and the conductive pipe includes a conductive element. The conductive element is tubular and is inserted into the mounting hole. The first end and the second end of the conductive element are respectively exposed in the mounting hole. The first end of the conductive element is used to connect with the driving element, and the second end of the conductive element is used to connect with the liquid inlet or the liquid outlet. The first clamping arm has a positioning area on its surface facing the second clamping arm. The positioning area is configured to fix the positioning part of the test card so as to realize the positioning docking of the conductive member with the liquid inlet or the liquid outlet. The first clamping arm is provided with a positioning post, which is located in the positioning area. The operating component includes a pressing element disposed on the surface of the second clamping arm facing the first clamping arm. The operating component includes two or more pressing elements, wherein the two pressing elements respectively squeeze the first valve and the second valve of the test card to connect the liquid inlet, the sample detection channel, and the liquid outlet. The clamp further includes a seal sleeved on the pressing member, the seal being configured to be located between one of the pressing members and the first valve and between the other pressing member and the second valve in the first relative posture.

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