Detection cup holder, detection device and detection method of liquid in cup

Abstract

The invention discloses a detection cup holder, a detection device and a detection method for liquid in a cup. The detection cup holder comprises a frame body, and at least a micro-cup slot for placing a micro-cup and a test tube slot for placing a test tube are provided on the frame body. The opening direction of the micro-cup slot and the opening direction of the test tube slot are in the same direction. The height difference between the bottom wall of the micro-cup slot and the bottom wall of the test tube slot in the vertical direction is a preset distance. In the direction from the bottom wall of the micro-cup slot to the opening of the micro-cup slot, the bottom wall of the micro-cup slot is located above the bottom wall of the test tube slot, so that when the sample is in the micro-cup, it is easier to detect the change of capacitance, thereby improving the detection accuracy of the micro sample. When the stroke of the sampling needle is a fixed value, the detection and extraction of the sample liquid in the micro-cup and the test tube are completed, which simplifies the detection and sampling process of the sample liquid. Moreover, the sampling needle will not contact the bottom wall of the micro-cup slot and the test tube slot, and will not cause damage to the sampling needle.

Description

Technical Field

[0001] The present invention relates to the technical field of sample detection, and in particular to a detection cup holder, a detection device and a method for detecting liquid in a cup. Background Art

[0002] Testing equipment for analyzing blood is widely used in medical activities, such as blood glucose meters and coagulation meters. Testing equipment in related technologies usually has a test tube rack on which test tubes can be placed. The test tubes contain sample liquid to be tested, and then the liquid in the test tubes is sampled and tested. However, test tubes usually have certain standards, and the sample liquid contained in each type of test tube is basically fixed. Therefore, when the demand for sample liquid is small, using a test tube to hold a small amount of sample liquid will result in a small change in the liquid level in the test tube, which is not only not conducive to detecting whether there is sample liquid in the test tube, but also makes it inconvenient for the sampling needle to take samples for testing. It is often necessary to change the stroke of the sampling needle, which in turn causes a poor user experience. Summary of the invention

[0003] In view of the above problems, the present invention provides a detection cup holder, a detection device and a method for detecting liquid in a cup, which are convenient to detect, have high accuracy and high safety.

[0004] According to a first aspect of the present invention, there is provided a detection cup rack, wherein the rack body is provided with at least a microcup slot for placing a microcup and a test tube slot for placing a test tube, the opening direction of the microcup slot and the opening direction of the test tube slot are in the same direction, the height difference between the bottom wall of the microcup slot and the bottom wall of the test tube slot in the vertical direction is a preset distance, and in the direction from the bottom wall of the microcup slot toward the opening of the microcup slot, the bottom wall of the microcup slot is located above the bottom wall of the test tube slot.

[0005] As an embodiment of the present invention, the test tube in the test tube slot is used to hold blood after centrifugation, and the blood in the test tube forms a lower layer of liquid and an upper layer of liquid after centrifugation. The preset distance is the thickness of the lower layer of liquid, and the microcup is used to place the upper layer of liquid formed after the blood is centrifuged.

[0006] As an embodiment of the present invention, the rack body includes a test tube rack and a micro-cup rack, the test tube slot is provided on the test tube rack, and the micro-cup slot is provided on the micro-cup rack.

[0007] As an embodiment of the present invention, the micro-cup rack includes a support plate and a handle connected to one end of the support plate, and a plurality of micro-cup grooves are provided on the support plate at intervals.

[0008] As an embodiment of the present invention, a slide groove is provided on the support plate for installation on a slide rail of a rack.

[0009] As an embodiment of the present invention, a long groove is formed on the support plate, and the long groove is located below the plurality of micro-cup grooves and is connected with the plurality of micro-cup grooves.

[0010] As an embodiment of the present invention, the micro-cup rack is a metal rack.

[0011] As an embodiment of the present invention, an adjustment threaded hole is opened on the bottom wall of the microcup groove along the axial direction of the microcup, and the detection cup holder also includes an adjustment stud, and the adjustment stud includes a rod portion provided with a thread and a head connected to one end of the rod portion, and an avoidance hole is opened in the middle portion of the head portion along the axial direction of the microcup, and rotating the head can make the rod portion move relative to the adjustment threaded hole along the axial direction of the microcup to adjust the preset distance.

[0012] According to a second aspect of the present invention, a detection device is provided, which includes a frame, a sampling needle and a detection cup rack as described in any of the above embodiments, the sampling needle is arranged on the frame and can move up and down relative to the frame in a vertical direction, the frame body is arranged on the frame and is located below the sampling needle, the sampling needle can detect whether there is liquid in a microcup and a test tube and can extract liquid from the microcup and the test tube, and the stroke of the sampling needle is within a preset range so that the sampling needle can at least move into the microcup slot and the test tube slot, and can avoid contact with the bottom wall of the microcup in the microcup slot.

[0013] As an embodiment of the present invention, the stroke of the sampling needle is set to a constant value.

[0014] As an embodiment of the present invention, the frame is made of metal at least at a position corresponding to the micro-cup groove, so that the micro-cup groove wall is a metal groove wall.

[0015] According to a third aspect of the present invention, a method for detecting liquid in a cup is provided. The method is based on the detection device described in any of the above embodiments, and the method comprises:

[0016] Receive detection command;

[0017] Controlling the sampling needle to move to the micro-cup slot and / or the test tube slot to collect liquid samples;

[0018] The liquid sample collected by the sampling needle is moved to a preset position.

[0019] As an embodiment of the present invention, the following steps are also included:

[0020] It is determined whether the capacitance change detected when the sampling needle moves within the stroke range exceeds a threshold value to determine whether there is liquid in the microcup and / or the test tube. When the capacitance change exceeds the threshold value, it indicates that there is a liquid sample in the microcup and / or the test tube. When the capacitance change does not exceed the threshold value, it indicates that there is no liquid sample in the microcup and / or the test tube.

[0021] Implementing the embodiments of the present invention will have at least the following beneficial effects:

[0022] The detection cup holder in this embodiment has a micro cup slot and a test tube slot on its frame. The micro cup slot can be used to place a micro cup to meet the demand for holding a small amount of sample liquid, and the test tube slot can be used to place test tubes for daily use to meet the daily demand for holding normal sample liquid. When the amount of the sample is very small, the sample is placed in the micro cup. Since the diameter of the micro cup is smaller than that of the test tube, the depth of the liquid sample in the micro cup will be higher. The sampling needle can more easily detect the change in capacitance during detection, thereby improving the detection accuracy of trace samples. In addition, since the opening direction of the micro-cup slot and the opening direction of the test tube slot are in the same direction, the height difference between the bottom wall of the micro-cup slot and the bottom wall of the test tube slot in the vertical direction is a preset distance, and in the direction from the bottom wall of the micro-cup slot to the opening of the micro-cup slot, the bottom wall of the micro-cup slot is located above the bottom wall of the test tube slot, so that the stroke of the sampling needle of the detection device using the detection cup holder can be a fixed value. When the stroke of the sampling needle is at the fixed value, the sampling needle can move into the micro-cup slot and the test tube slot, and can avoid contact with the bottom wall of the micro-cup in the micro-cup slot. At this time, the sampling needle can complete the detection and extraction of the sample liquid in the micro-cup and the test tube when the stroke is a fixed value, which simplifies the detection and sampling process of the sample liquid, and the sampling needle will not contact the bottom wall of the micro-cup slot and the test tube slot, and will not cause damage to the sampling needle, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] in:

[0025] Figure 1 is a schematic diagram of the structure of a detection device in an embodiment;

[0026] Figure 2 is a schematic structural diagram of a micro-cup holder in an embodiment;

[0027] Figure 3 for Figure 2 Another view of the micro-cup holder in;

[0028] In the figure: 1, micro cup; 2, test tube; 3, lower layer liquid; 4, upper layer liquid; 100, frame; 110, micro cup frame; 111, micro cup slot; 112, support plate; 1121, slide slot; 1122, long slot; 1123, first plane; 1124, second plane; 113, handle; 114, magnetic suction piece; 121, test tube slot. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] Please refer to Figure 1-Figure 3 The present invention discloses a detection device, which can be applied to various analyzers in the medical field, such as sample analyzers, coagulation meters, blood glucose meters, etc., and of course can also be other devices.

[0033] The detection device in this embodiment includes a frame (not shown in the figure), a sampling needle (not shown in the figure) and a detection cup holder. The sampling needle is arranged on the frame and can move up and down relative to the frame in the vertical direction. The detection cup holder is used to place a cup of a sample to be detected. The detection cup holder is arranged on the frame and is located below the sampling needle to facilitate the sampling needle to extract and detect the sample from the cup placed on the detection cup holder. The sample is preferably a liquid sample.

[0034] The sampling needle can sense the sample and detect whether there is a sample in the cup. The specific principle is to judge whether the sampling needle contacts the liquid by the change in capacitance. Specifically, the detection cup holder is placed on the rack, and the cup is placed on the detection cup holder. Then, a capacitor is formed between the sampling needle and the rack. When the sampling needle does not touch the liquid surface in the cup, the capacitance formed by the side of the sampling needle and the rack is the largest when the sampling needle descends to the closest to the liquid surface. When the sampling needle touches the liquid surface, the capacitance at this time changes suddenly compared to when it does not touch the liquid surface. If the mutation amount of the capacitance exceeds the threshold, it means that there is a liquid sample in the cup. If the change in capacitance does not exceed the threshold, it means that there is no liquid sample in the cup.

[0035] Since the capacitance formed between the sampling needle and the rack is affected by many factors, such as the conductivity of the rack, and since the detection cup holder is also mounted on the rack, the material of the detection cup holder also affects the capacitance, in order to improve the detection accuracy, the detection cup holder in this embodiment is at least partially made of metal material, such as aluminum, copper, silver and other materials with good conductivity, and preferably the part where the cup is placed is made of metal material. By setting the detection cup holder to be a metal material, capacitance can be generated between the sampling needle and the detection cup holder, and the distance between the detection cup holder and the sampling needle is smaller, so that the generated capacitance will be larger, and the capacitance between the sampling needle and the rack is added, so that the total capacitance is larger, so that it is easier to accurately detect the change in capacitance.

[0036] The detection equipment in the related art, such as the coagulation analyzer in the related art, usually only has a slot for placing the test tube 2, and all samples that need to be tested are also placed in the test tube 2. When the amount of the sample is very small, when the sampling needle is inserted into the test tube 2 to detect whether there is a liquid sample, the change in capacitance cannot reach the threshold due to the small amount of the sample, resulting in detection errors.

[0037] To solve the above problems, please refer to Figure 1The embodiment of the present invention provides a detection cup rack, which includes a frame body 100, and the frame body 100 is provided with at least a microcup slot 111 for placing a microcup 1 and a test tube slot 121 for placing a test tube 2. The opening direction of the microcup slot 111 and the opening direction of the test tube slot 121 are in the same direction, and the height difference between the bottom wall of the microcup slot 111 and the bottom wall of the test tube slot 121 in the vertical direction is a preset distance, and in the direction from the bottom wall of the microcup slot 111 to the opening of the microcup slot 111, that is, in the vertically upward direction, the bottom wall of the microcup slot 111 is located above the bottom wall of the test tube slot 121. It should be noted that the opening of the microcup slot 111 and the opening of the test tube slot 121 are preferably on the same plane, and of course, they may not be on the same plane.

[0038] Since the frame 100 is provided with a microcup slot 111 and a test tube slot 121, a microcup 1 can be placed in the microcup slot 111 to meet the demand for holding a small amount of sample liquid, and a test tube 2 for daily use can be placed in the test tube slot 121 to meet the demand for daily holding of normal sample liquid. Since the microcup slot 111 can hold the microcup 1, when the amount of the sample is very small, the sample is placed in the microcup 1. Since the diameter of the microcup 1 is smaller than that of the test tube 2, the depth of the liquid sample in the microcup 1 will be higher, and the sampling needle can more easily detect the change in capacitance during detection, thereby improving the detection accuracy of trace samples.

[0039] In addition, since the opening direction of the micro-cup slot 111 and the opening direction of the test tube slot 121 are in the same direction, the height difference between the bottom wall of the micro-cup slot 111 and the bottom wall of the test tube slot 121 in the vertical direction is a preset distance, and in the direction from the bottom wall of the micro-cup slot 111 toward the opening of the micro-cup slot 111, that is, in the vertical upward direction, the bottom wall of the micro-cup slot 111 is located above the bottom wall of the test tube slot 121, thereby making the stroke of the sampling needle of the detection device using the detection cup holder a fixed value. At this fixed value, the sampling needle can move into the microcup slot 111 and the test tube slot 121, and can avoid contacting the bottom wall of the microcup 1 in the microcup slot 111. At this time, the sampling needle can complete the detection and extraction of the sample liquid in the microcup 1 and the test tube 2 when the stroke is a fixed value, which simplifies the detection and sampling process of the sample liquid. Moreover, the sampling needle will not contact the bottom walls of the microcup slot 111 and the test tube slot 121, and will not cause damage or contamination to the sampling needle, thereby improving the user experience.

[0040] It should be noted that in some other embodiments, the stroke of the sampling needle can be set within a preset range, within which the sampling needle can be moved at least into the micro-cup slot 111 and the test tube slot 121, and can avoid contact with the bottom wall of the micro-cup 1 in the micro-cup slot 111. The sampling needle can adjust its stroke within the range, making it more intelligent.

[0041] In order to further improve the detection accuracy of trace samples, the bottom wall of the microcup groove 111 is a conical surface (not shown in the figure), that is, the lower part of the microcup groove 111 is a conical groove, and accordingly, the lower part of the microcup 1 placed in the microcup groove 111 is also conical to match the conical groove. When the lower part of the microcup 1 is conical, the same amount of liquid is placed in the conical groove, which can make the depth of the liquid deeper and more conducive to the detection of the liquid in the microcup 1. Of course, the microcup groove 111 can also be a cylindrical groove or a groove of other shapes, and the microcup 1 can also be other shapes.

[0042] Please refer to Figure 1 In one embodiment, the test tube 2 in the test tube slot 121 is used to hold the centrifuged blood, and the blood in the test tube 2 forms a lower layer of liquid 3 and an upper layer of liquid 4 after centrifugation. The preset distance is the thickness of the lower layer of liquid 3. The microcup 1 is used to hold the upper layer of liquid 4 formed after the centrifugation of the blood. The detection device in this embodiment can be applied to coagulation analyzers and blood glucose meters. Since the microcup 1 is used to hold trace liquid samples, the upper layer of liquid 4 separated in the test tube 2 can be directly transferred to the microcup 1 for detection, so that the lower layer of liquid 3 does not exist in the microcup 1, and the lower layer of liquid 3 generally does not need to be extracted and detected by a sampling needle during detection. When the microcup slot 111 is opened, the height difference between the bottom wall of the microcup slot 111 and the bottom wall of the test tube slot 121 in the vertical direction is the thickness of the lower layer of liquid 3. Under normal circumstances, after the blood in the test tube 2 is separated, the thickness of the lower layer of liquid 3 is certain, so that the depth of the microcup groove 111 can be accurately set, which is conducive to the setting of the sampling needle stroke, that is, the maximum stroke of the sampling needle is set to move as far as the bottom wall of the microcup 1 in the microcup groove 111, thereby preventing the sampling needle from being damaged during the detection process, and the liquid in the microcup 1 can be detected and extracted, which greatly improves the detection capability of the detection equipment and enables it to have the function of detecting trace samples, with more diverse functions.

[0043] It should be noted that the frame 100 in the embodiment of the present invention can be a part in which the micro-cup slot 111 and the test tube slot 121 are opened at the same time, and the frame 100 can also be two separate parts, and the micro-cup slot 111 and the test tube slot 121 are respectively opened at two different parts of the frame 100, that is, the micro-cup slot 111 and the test tube slot 121 can be set separately or together.

[0044] It should also be noted that other slots may be provided on the frame 100 , such as a culture dish placement slot or a reagent tube placement slot, etc., and are not limited to the above-mentioned test tube slot 121 and microcup slot 111 .

[0045] Please refer to Figure 2 as well as Figure 3 In a specific embodiment, the rack 100 includes a test tube rack (not shown) and a micro-cup rack 110, the test tube slot 121 is provided on the test tube rack, and the micro-cup slot 111 is provided on the micro-cup rack 110. The test tube rack and the micro-cup rack 110 are provided separately, which can facilitate the subsequent assembly and the design of the positions of the test tube rack and the micro-cup rack 110.

[0046] Please refer to Figure 2 as well as Figure 3 In a more specific embodiment, the micro-cup holder 110 includes a support plate 112 and a handle 113 connected to one end of the support plate 112, and a plurality of micro-cup slots 111 are provided on the support plate 112 at intervals. In this embodiment, the support plate 112 can be conveniently pulled out of the frame or pushed into the installation position on the frame by the handle 113, which is convenient for the user to operate.

[0047] Furthermore, a slide groove 1121 is provided on the support plate 112 , and a slideway (not shown in the figure) adapted to the slide groove 1121 is provided on the frame, and the support plate 112 is movably arranged on the slide groove 1121 through the slide groove 1121 .

[0048] Furthermore, the support plate 112 and the handle 113 are integrally formed. Of course, the support plate 112 and the handle 113 may be connected together by bolts or the like.

[0049] Furthermore, a long groove 1122 is provided on the support plate 112, and the long groove 1122 is located below the plurality of microcup grooves 111 and is connected to the plurality of microcup grooves 111. Since the microcup 1 usually needs to be refrigerated, after the microcup groove 111 is cooled, the air is cooled and liquefied, and water droplets will appear on the inner wall of the microcup groove 111. Since the long groove 1122 is connected to each microcup groove 111, the water droplets in the microcup groove 111 can be drained away in time, and will not affect the placement of the microcup 1.

[0050] Furthermore, the support plate 112 is a rectangular plate, the width of which is only slightly larger than the diameter of the microcup 1, and the height and length of which are much larger than the width, and a plurality of microcup slots 111 are provided on a first plane 1123 of the support plate 112 along the length direction of the support plate 112, and the first plane 1123 is perpendicular to the height direction of the support plate 112. The long slots 1122 are provided on a second plane 1124 of the support plate 112, and the second plane 1124 is perpendicular to the width direction of the support plate 112, and the long slots 1122 are located below the microcup slots 111.

[0051] In addition, a magnetic component 114 is provided on one end of the support plate 112 away from the handle 113, and another magnetic component 114 adapted to the magnetic component 114 is provided on the frame. Therefore, when the support plate 112 cannot be completely inferred to the preset position, the support plate 112 can be adsorbed at the preset position due to the suction effect of the two magnetic components 114, thereby preventing the sampling needle from being unable to accurately penetrate into the microcup 1.

[0052] It should be noted that the shape of the support plate 112 is not limited to the above embodiment.

[0053] In a specific embodiment, the micro-cup holder 110 is a metal holder. By setting the micro-cup holder 110 as a metal holder, when the sample is detected for the liquid placed in the micro-cup 1, a capacitor is generated between the micro-cup holder 110 and the sampling needle, so that the total capacitance between the sampling needle and the micro-cup holder 110 and the rack is larger, and the change of capacitance is larger, so that it is more conducive to accurate detection of the liquid in the micro-cup 1.

[0054] It should be noted that only the position where the micro-cup groove 111 is provided on the micro-cup holder 110 may be made of metal material, for example, only the inner wall of the micro-cup groove 111 may be made of metal material.

[0055] It should also be noted that the test tube rack can also be made of metal material.

[0056] In order to adjust the preset distance for different detection items, in one embodiment, an adjustment threaded hole (not shown in the figure) is provided on the bottom wall of the microcup slot 111 along the axial direction of the microcup 1, and the detection cup holder also includes an adjustment stud (not shown in the figure), the adjustment stud includes a rod with a thread and a head connected to one end of the rod, and a avoidance hole is provided in the middle of the head along the axial direction of the microcup 1. Rotating the head can make the rod move relative to the adjustment threaded hole along the axial direction of the microcup 1 to adjust the preset distance. In this embodiment, the height of the bottom wall of the microcup slot 111 can be changed by rotating the adjustment stud, thereby adjusting the preset distance. The adjustment method is simple. Since the adjustment stud is threadedly connected to the microcup slot 111, the adjustment accuracy is high. In addition, since the avoidance hole is provided in the middle of the head, the sampling needle can be prevented from being inserted into the head and damaged in the event of loss of control.

[0057] Based on the detection device in the above embodiment, the embodiment of the present invention further provides a method for detecting liquid in a cup, the method comprising the following steps:

[0058] First, the stroke of the sampling needle is set to a fixed value, at which the sampling needle can at least move into the micro-cup groove 111 and can avoid contact with the bottom wall of the micro-cup 1 in the micro-cup groove 111;

[0059] Receive detection command;

[0060] Control the sampling needle to move into the micro-cup slot 111 to collect the liquid sample;

[0061] It is determined whether the capacitance change detected when the sampling needle moves within the stroke range exceeds a threshold value to determine whether there is liquid in the microcup 1. When the capacitance change exceeds the threshold value, it indicates that there is a liquid sample in the microcup 1. When the capacitance change does not exceed the threshold value, it indicates that there is no liquid sample in the microcup 1.

[0062] Move the liquid sample collected by the sampling needle to a preset position.

[0063] Through the method for detecting liquid in the cup, it is possible to conveniently detect whether there is a liquid sample in the microcup 1. Since the stroke of the sampling needle is set to a fixed value, the detection steps are simple, and the sampling needle can be prevented from being contaminated and damaged due to being inserted into the bottom of the microcup 1.

[0064] Of course, the above method can also detect whether there is liquid in the test tube 2. In one embodiment, the method for detecting liquid in the cup includes the following steps:

[0065] First, the stroke of the sampling needle is set to a fixed value, at which the sampling needle can at least move into the micro-cup groove 111 and can avoid contact with the bottom wall of the micro-cup 1 in the micro-cup groove 111;

[0066] Receive detection command;

[0067] Control the sampling needle to move into the test tube slot 121 to collect liquid samples;

[0068] It is determined whether the capacitance change detected when the sampling needle moves within the stroke range exceeds a threshold value to determine whether there is liquid in the test tube 2. When the capacitance change exceeds the threshold value, it indicates that there is a liquid sample in the test tube 2. When the capacitance change does not exceed the threshold value, it indicates that there is no liquid sample in the test tube 2.

[0069] Move the liquid sample collected by the sampling needle to a preset position.

[0070] Similarly, through the method of detecting liquid in the cup, it is possible to conveniently detect whether there is a liquid sample in the test tube 2. Since the stroke of the sampling needle is set to a fixed value, the detection steps are simple, and the sampling needle can be prevented from being contaminated and damaged due to being inserted into the test tube 2.

[0071] It should be noted that the method for detecting liquid in the cup can detect whether there is liquid in the test tube 2 alone, whether there is liquid in the micro cup 1 alone, or whether there is liquid in both the micro cup 1 and the test tube 2.

[0072] According to the method for detecting the liquid in the cup, since the stroke of the sampling needle is set to a fixed value, and when the fixed value is set, the sampling needle can detect the upper liquid 4 in the test tube 2, and can also detect the liquid in the micro cup 1, and the sampling needle will not be inserted into the bottom wall of the micro cup 1, let alone the bottom wall of the test tube 2, so that the same sampling needle can be used to detect whether there is liquid in the test tube 2 and the micro cup 1, thereby simplifying the structure of the detection equipment and reducing its manufacturing cost.

[0073] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A cup holder detection device, characterized in that: The detection cup rack comprises a frame body, the frame body is provided with at least a microcup slot for placing a microcup and a test tube slot for placing a test tube, the opening direction of the microcup slot and the opening direction of the test tube slot are in the same direction, the height difference between the bottom wall of the microcup slot and the bottom wall of the test tube slot in the vertical direction is a preset distance, and in the direction from the bottom wall of the microcup slot to the opening of the microcup slot, the bottom wall of the microcup slot is located above the bottom wall of the test tube slot; An adjustment threaded hole is provided on the bottom wall of the microcup groove along the axial direction of the microcup. The detection cup holder also includes an adjustment stud, which includes a rod portion provided with threads and a head portion connected to one end of the rod portion. An avoidance hole is provided in the middle portion of the head portion along the axial direction of the microcup. Rotating the head portion can move the rod portion relative to the adjustment threaded hole along the axial direction of the microcup to adjust the preset distance.

2. The detection cup holder according to claim 1, characterized in that: The test tube in the test tube slot is used to hold the blood after centrifugation, and the blood in the test tube forms a lower layer of liquid and an upper layer of liquid after centrifugation. The preset distance is the thickness of the lower layer of liquid, and the microcup is used to hold the upper layer of liquid formed after the blood is centrifuged.

3. The detection cup holder according to claim 1, characterized in that: The frame body comprises a test tube rack and a micro-cup rack, the test tube slot is arranged on the test tube rack, and the micro-cup slot is arranged on the micro-cup rack.

4. The detection cup holder according to claim 3, characterized in that: The micro-cup rack comprises a support plate and a handle connected to one end of the support plate, and a plurality of micro-cup grooves are arranged at intervals on the support plate.

5. The detection cup holder according to claim 4, characterized in that: The support plate is provided with a slide groove for being installed on the slide rail of the rack.

6. The detection cup holder according to claim 4, characterized in that: The support plate is provided with a long groove, which is located below the micro-cup grooves and communicated with the micro-cup grooves.

7. The detection cup holder according to claim 3, characterized in that: The micro-cup rack is a metal rack.

8. A detection device, characterized in that: The detection device includes a frame, a sampling needle and a detection cup rack according to any one of claims 1 to 7, wherein the sampling needle is arranged on the frame and can move up and down relative to the frame in a vertical direction, the frame body is arranged on the frame and is located below the sampling needle, the sampling needle can detect whether there is liquid in the microcup and the test tube and can extract liquid from the microcup and the test tube, and the stroke of the sampling needle is within a preset range so that the sampling needle can at least move into the microcup slot and the test tube slot and can avoid contact with the bottom wall of the microcup in the microcup slot.

9. A detection device according to claim 8, characterized in that: The stroke of the sampling needle is set to a fixed value.

10. A detection device according to claim 8, characterized in that: The frame is made of metal at least at a position corresponding to the micro-cup groove, so that the micro-cup groove wall is a metal groove wall.

11. A method for detecting liquid in a cup, characterized in that: The method is based on the detection device described in any one of claims 8 to 10, and the method comprises: Receive detection command; Controlling the sampling needle to move to the micro-cup slot and / or the test tube slot to collect liquid samples; The liquid sample collected by the sampling needle is moved to a preset position.

12. A method for detecting liquid in a cup according to claim 11, characterized in that: The following steps are also included: It is determined whether the capacitance change detected when the sampling needle moves within the stroke range exceeds a threshold value to determine whether there is liquid in the microcup and / or the test tube. When the capacitance change exceeds the threshold value, it indicates that there is a liquid sample in the microcup and / or the test tube. When the capacitance change does not exceed the threshold value, it indicates that there is no liquid sample in the microcup and / or the test tube.

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