Sample adding device for blood coagulation detection instrument

Abstract

The utility model discloses a sample adding device for a blood coagulation detection instrument, which comprises a cross beam component, a first sliding rail, a second sliding rail and a sample adding component, and is characterized in that the cross beam component is provided with the first sliding rail which extends along the transverse direction; the sample adding arm body is movably connected with the first sliding rail so that the sample adding arm body can transversely move in the length direction of the first sliding rail, and a second sliding rail extending in the vertical direction is arranged on the sample adding arm body; the first driving mechanism is connected with the sample adding arm body, and the first driving mechanism is used for driving the sample adding arm body to transversely move in the length direction of the first sliding rail; the sample adding connecting plate is movably connected with the second sliding rail, so that the sample adding connecting plate can move along the second sliding rail in the vertical direction; the second driving mechanism is connected with the sample adding connecting plate, and the second driving mechanism is used for driving the sample adding connecting plate to move along the second sliding rail in the vertical direction; the sample adding needle head is mounted on the sample adding connecting plate and is connected with the suction device, and the sample adding efficiency and precision can be improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a sample application device for a coagulation testing instrument. Background Technology

[0002] In automated coagulation testing, various reagents need to be added to blood sample tubes. Current technologies commonly use methods such as siphon droppers and pipettes, which require professional operation, are technically challenging, and have significant potential for error. With advancements in automation technology, there is a need to add and dilute minute amounts of blood samples, thus requiring more precise automated micro-volume sampling devices for sample aspiration. Utility Model Content

[0003] This invention provides a sample application device for a coagulation testing instrument, which can improve the efficiency and accuracy of sample application.

[0004] To solve the above-mentioned technical problems, this utility model provides a sample application device for a coagulation testing instrument, comprising:

[0005] A crossbeam component, wherein a first slide rail is provided on the crossbeam component, and the first slide rail extends laterally;

[0006] The sample dispensing arm is movably connected to the first slide rail so that the sample dispensing arm can move laterally along the length direction of the first slide rail, and the sample dispensing arm is provided with a second slide rail extending along the vertical direction;

[0007] A first driving mechanism is connected to the sample dispensing arm body, and the first driving mechanism is used to drive the sample dispensing arm body to move laterally along the length direction of the first slide rail;

[0008] A sample feeding connecting plate is movably connected to the second slide rail so that the sample feeding connecting plate can move vertically along the second slide rail;

[0009] The second driving mechanism is connected to the sample feeding connecting plate, and the second driving mechanism is used to drive the sample feeding connecting plate to move vertically along the second slide rail;

[0010] A sample dispensing needle is mounted on the sample dispensing connection plate and is connected to the aspiration device.

[0011] As a preferred embodiment of the above technical solution, the first driving mechanism includes a first motor, a first synchronous belt, a first synchronous pulley, and a second synchronous pulley. The first synchronous pulley and the second synchronous pulley are rotatably mounted on the crossbeam component and there is a set distance between the first synchronous pulley and the second synchronous pulley. The first synchronous belt is tensioned on the first synchronous pulley and the second synchronous pulley. The first motor is connected to the first synchronous pulley and is used to drive the first synchronous pulley to rotate. The first synchronous belt is parallel to the first slide rail, and the sample feeding arm is connected to the first synchronous belt.

[0012] As a preferred embodiment of the above technical solution, the sample application device for the coagulation testing instrument further includes a first slider, which is movably engaged with the first slide rail, fixedly connected to the sample application arm, and fixedly connected to the first synchronous belt.

[0013] As a preferred embodiment of the above technical solution, the second driving mechanism includes a second motor, a second synchronous belt, a third synchronous pulley, and a fourth synchronous pulley. The third and fourth synchronous pulleys are rotatably mounted on the sample feeding arm and are spaced at a preset distance. The second synchronous belt is tensioned on the third and fourth synchronous pulleys. The second motor is connected to the third synchronous pulley and is used to drive the third synchronous pulley to rotate. The second synchronous belt is arranged parallel to the second slide rail, and the sample feeding connecting plate is connected to the second synchronous belt.

[0014] As a preferred embodiment of the above technical solution, the sample application device for the coagulation testing instrument further includes a second slider, which is movably coupled with the second slide rail, fixedly connected to the sample application connecting plate, and also fixedly connected to the second synchronous belt.

[0015] As a preferred embodiment of the above technical solution, the sample dispensing connecting plate is provided with a guide block, and a guide hole is provided at the center of the guide block. The size of the guide hole is consistent with the diameter of the sample dispensing needle so that the sample dispensing needle fits tightly with the guide hole, and the sample dispensing needle passes through the guide hole.

[0016] As a preferred embodiment of the above technical solution, the lower end of the sample-adding connecting plate is formed with a bending plate, the bending plate is located in the horizontal direction, the bending plate is formed with a mounting hole, and the lower part of the guide block is formed with a mounting post, the mounting post cooperating with the mounting hole.

[0017] As a preferred embodiment of the above technical solution, the mounting post is threaded, the mounting post is threadedly connected to the locking nut, and the bending plate is sandwiched between the guide block and the locking nut.

[0018] As a preferred embodiment of the above technical solution, the first motor is a stepper motor, and the second motor is a stepper motor.

[0019] As a preferred embodiment of the above technical solution, the sample application device for the coagulation testing instrument further includes a liquid level detection device.

[0020] This utility model provides a sample application device for a coagulation testing instrument, comprising a crossbeam component, a sample application arm, a first drive mechanism, a sample application connecting plate, a second drive mechanism, and a sample application needle. During operation, the first drive mechanism first moves the sample application arm laterally above the reagent. Then, the second drive mechanism lowers the sample application connecting plate, immersing the tip of the sample application needle into the reagent. A suction device is then activated to draw a quantitative amount of reagent into the sample application needle. Next, the second drive mechanism drives the sample application connecting plate upwards, and the sample application needle with the drawn-in quantitative reagent rises along with the connecting plate. The first drive mechanism then moves the sample application arm to above the sample. The second drive mechanism then lowers the sample application needle again, and the suction device discharges the quantitative amount of reagent from the sample application needle into the sample. This not only improves the efficiency of sample application but also enhances the accuracy of sample application.

[0021] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0022] Figure 1 A three-dimensional structural schematic diagram of a sample application device for a coagulation testing instrument in this embodiment is shown from a first angle.

[0023] Figure 2 A three-dimensional structural diagram of a sample application device for a coagulation testing instrument in this embodiment is shown from a second angle.

[0024] Figure 3 A three-dimensional structural diagram of a sample application device for a coagulation testing instrument in this embodiment is shown from a third angle.

[0025] Figure 4 A schematic diagram of the installation structure of the sample dispensing needle and the sample dispensing connecting plate in this embodiment is shown;

[0026] Figure 5 This diagram illustrates the connection structure between the sample dispensing needle and the sample dispensing connecting plate in this embodiment.

[0027] In the diagram: 10, crossbeam component; 20, first drive mechanism; 40, second drive mechanism; 50, sample dispensing needle; 60, first slider; 70, first slide rail; 80, second slide rail; 90, second slider; 100, guide block; 110, locking nut; 201, first motor; 202, first synchronous belt; 203, second synchronous pulley; 204, first synchronous pulley; 301, sample dispensing arm body; 302, sample dispensing connecting plate; 401, second motor; 402, second synchronous belt; 403, fourth synchronous pulley; 404, third synchronous pulley; 1001, mounting column; 1002, guide hole; 3021, bending plate; 3022, mounting hole. Detailed Implementation

[0028] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] See Figures 1 to 5 This utility model provides a sample application device for a coagulation testing instrument, comprising:

[0030] A crossbeam component 10 is provided with a first slide rail 70, which extends laterally.

[0031] The sample feeding arm 301 is movably connected to the first slide rail 70 so that the sample feeding arm 301 can move laterally along the length direction of the first slide rail 70. The sample feeding arm 301 is provided with a second slide rail 80 extending in the vertical direction.

[0032] The first drive mechanism 20 is connected to the sample dispensing arm 301. The first drive mechanism 20 is used to drive the sample dispensing arm 301 to move laterally along the length direction of the first slide rail 70.

[0033] The sample feeding connecting plate 302 is movably connected to the second slide rail 80 so that the sample feeding connecting plate 302 can move vertically along the second slide rail 80;

[0034] The second drive mechanism 40 is connected to the sample feeding connecting plate 302. The second drive mechanism 40 is used to drive the sample feeding connecting plate 302 to move vertically along the second slide rail 80.

[0035] The sample dispensing needle 50 is mounted on the sample dispensing connection plate 302 and is connected to the suction device (not shown in the figure).

[0036] This embodiment provides a sample application device for a coagulation testing instrument, comprising a crossbeam component 10, a sample application arm 301, a first drive mechanism 20, a sample application connecting plate 302, a second drive mechanism 40, and a sample application needle 50. During operation, the first drive mechanism 20 first moves the sample application arm 301 laterally above the reagent. Then, the second drive mechanism 40 lowers the sample application connecting plate 302, immersing the tip of the sample application needle 50 into the reagent. Finally, the aspiration device is activated to draw a quantitative amount of reagent into the reagent. In the sample dispensing needle 50, the second drive mechanism 40 drives the sample dispensing connecting plate 302 to rise, and the sample dispensing needle 50, which has been injected with a quantitative reagent, rises together with the sample dispensing connecting plate 302. Then, the first drive mechanism 20 drives the sample dispensing arm 301 to move so that the sample dispensing needle 50 is above the sample. Then, the second drive mechanism 40 drives the sample dispensing needle 50 to descend again, and then the quantitative reagent is discharged from the sample dispensing needle 50 into the sample through the suction device. This not only improves the efficiency of sample dispensing, but also improves the accuracy of sample dispensing.

[0037] In a further embodiment of this invention, the first drive mechanism 20 includes a first motor 201, a first synchronous belt 202, a first synchronous pulley 204, and a second synchronous pulley 203. The first synchronous pulley 204 and the second synchronous pulley 203 are rotatably mounted on the crossbeam component 10 and are spaced apart by a set distance. The first synchronous belt 202 is tensioned on the first synchronous pulley 204 and the second synchronous pulley 203. The first motor 201 is connected to the first synchronous pulley 204 and is used to drive the first synchronous pulley 204 to rotate. The first synchronous belt 202 is parallel to the first slide rail 70, and the sample loading arm 301 is connected to the first synchronous belt 202.

[0038] In a further embodiment of this invention, the sample application device for the coagulation testing instrument further includes a first slider 60, which is movably engaged with a first slide rail 70, fixedly connected to the sample application arm 301, and fixedly connected to a first synchronous belt 202.

[0039] In a further embodiment of this invention, the second drive mechanism 40 includes a second motor 401, a second synchronous belt 402, a third synchronous pulley 404, and a fourth synchronous pulley 403. The third synchronous pulley 404 and the fourth synchronous pulley 403 are rotatably mounted on the sample feeding arm 301 and are spaced at a preset distance. The second synchronous belt 402 is tensioned on the third synchronous pulley 404 and the fourth synchronous pulley 403. The second motor 401 is connected to the third synchronous pulley 404 and is used to drive the third synchronous pulley 404 to rotate. The second synchronous belt 402 is arranged parallel to the second slide rail 80, and the sample feeding connecting plate 302 is connected to the second synchronous belt 402.

[0040] In this embodiment, a synchronous belt drive is used, which not only makes the drive more stable but also provides higher precision.

[0041] In a further embodiment of this invention, the sample application device for the coagulation testing instrument further includes a second slider 90, which is movably engaged with the second slide rail 80, fixedly connected to the sample application connecting plate 302, and also fixedly connected to the second synchronous belt 402.

[0042] In a further embodiment of this embodiment, a guide block 100 is provided on the sample connection plate 302, and a guide hole 1002 is provided at the center of the guide block 100. The size of the guide hole 1002 is consistent with the diameter of the sample dispensing needle 50 so that the sample dispensing needle 50 is tightly fitted with the guide hole 1002, and the sample dispensing needle 50 passes through the guide hole 1002.

[0043] In a further embodiment of this invention, a bending plate 3021 is formed at the lower end of the sample connecting plate 302. The bending plate 3021 is located in the horizontal direction and a mounting hole 3022 is formed on the bending plate 3021. A mounting post 1001 is formed at the lower part of the guide block 100 and the mounting post 1001 cooperates with the mounting hole 3022.

[0044] In a further embodiment of this invention, the mounting post 1001 is threaded, and the mounting post 1001 is threadedly connected to the locking nut 110. The bending plate 3021 is sandwiched between the guide block 100 and the locking nut 110.

[0045] In a further possible implementation of this embodiment, the first motor 201 is a stepper motor, and the second motor 401 is a stepper motor.

[0046] In a further embodiment of this invention, the sample application device for the coagulation testing instrument also includes a liquid level detection device (not shown in the figure).

[0047] The liquid level detection device in this embodiment can detect the liquid level and can automatically add samples according to the specific location of the liquid level. The liquid level detection device in this embodiment can be any device or mechanism in the prior art that can realize liquid level detection.

[0048] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. Furthermore, the described specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0050] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A sample dispensing device for a coagulation testing instrument, characterized in that, include: A crossbeam component, wherein a first slide rail is provided on the crossbeam component, and the first slide rail extends laterally; The sample dispensing arm is movably connected to the first slide rail so that the sample dispensing arm can move laterally along the length direction of the first slide rail, and the sample dispensing arm is provided with a second slide rail extending along the vertical direction; A first driving mechanism is connected to the sample dispensing arm body, and the first driving mechanism is used to drive the sample dispensing arm body to move laterally along the length direction of the first slide rail; A sample feeding connecting plate is movably connected to the second slide rail so that the sample feeding connecting plate can move vertically along the second slide rail; The second driving mechanism is connected to the sample feeding connecting plate, and the second driving mechanism is used to drive the sample feeding connecting plate to move vertically along the second slide rail; A sample dispensing needle is mounted on the sample dispensing connection plate and is connected to the aspiration device.

2. The sample application device for a coagulation testing instrument according to claim 1, characterized in that, The first drive mechanism includes a first motor, a first synchronous belt, a first synchronous pulley, and a second synchronous pulley. The first synchronous pulley and the second synchronous pulley are rotatably mounted on the crossbeam component and are spaced apart by a set distance. The first synchronous belt is tensioned on the first synchronous pulley and the second synchronous pulley. The first motor is connected to the first synchronous pulley and is used to drive the first synchronous pulley to rotate. The first synchronous belt is parallel to the first slide rail, and the sample feeding arm is connected to the first synchronous belt.

3. The sample application device for a coagulation testing instrument according to claim 2, characterized in that, The sample application device for the coagulation testing instrument further includes a first slider, which is movably engaged with the first slide rail, is fixedly connected to the sample application arm, and is fixedly connected to the first synchronous belt.

4. The sample application device for a coagulation testing instrument according to claim 2, characterized in that, The second drive mechanism includes a second motor, a second synchronous belt, a third synchronous pulley, and a fourth synchronous pulley. The third and fourth synchronous pulleys are rotatably mounted on the sample feeding arm and are spaced at a preset distance. The second synchronous belt is tensioned on the third and fourth synchronous pulleys. The second motor is connected to the third synchronous pulley and is used to drive the third synchronous pulley to rotate. The second synchronous belt is parallel to the second slide rail, and the sample feeding connecting plate is connected to the second synchronous belt.

5. The sample application device for a coagulation testing instrument according to claim 4, characterized in that, The sample application device for the coagulation testing instrument further includes a second slider, which is movably engaged with the second slide rail, is fixedly connected to the sample application connecting plate, and is also fixedly connected to the second synchronous belt.

6. The sample application device for a coagulation testing instrument according to claim 1, characterized in that, The sample dispensing connection plate is provided with a guide block, and a guide hole is provided at the center of the guide block. The size of the guide hole is the same as the diameter of the sample dispensing needle so that the sample dispensing needle fits tightly with the guide hole, and the sample dispensing needle passes through the guide hole.

7. The sample application device for a coagulation testing instrument according to claim 6, characterized in that, The lower end of the sample-adding connecting plate is formed with a bent plate, which is located in the horizontal direction and has mounting holes. The lower part of the guide block has a mounting post, which mates with the mounting holes.

8. The sample dispensing device for a coagulation testing instrument according to claim 7, characterized in that, The mounting post has threads, and the mounting post is threadedly connected to the locking nut. The bent plate is sandwiched between the guide block and the locking nut.

9. The sample application device for a coagulation testing instrument according to claim 4, characterized in that, The first motor is a stepper motor, and the second motor is a stepper motor.

10. The sample dispensing device for a coagulation testing instrument according to any one of claims 1 to 9, characterized in that, The sample application device for the coagulation testing instrument also includes a liquid level detection device.

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