Sampling needle with three degrees of freedom

Abstract

The utility model discloses a sample adding needle with three degrees of freedom, which comprises an X-direction moving mechanism, a Y-direction moving mechanism and a Z-direction moving mechanism, the X-direction moving mechanism, the Y-direction moving mechanism and the Z-direction moving mechanism are identical in structure, the Y-direction moving mechanism is connected to the output end of the X-direction moving mechanism, and the Z-direction moving mechanism is connected to the output end of the Y-direction moving mechanism. The output end of the Z-direction moving mechanism is connected with a vertically downward sampling needle. According to the utility model, the sample adding needle can suck and add liquid freely in a three-dimensional space, and the layout of the whole machine is not limited.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and particularly relates to a sampling needle with three degrees of freedom. Background Art

[0002] Chemiluminescent labeled immunoassay, also known as chemiluminescent immunoassay (CLIA), is an immunoassay method that directly labels antigens or antibodies with chemiluminescent agents. A chemiluminescent immunoassay analyzer consists of two parts, namely an immune reaction system and a chemiluminescent analysis system. The chemiluminescent analysis system utilizes chemiluminescent substances catalyzed by a catalyst and oxidized by an oxidant to form an excited intermediate. When this excited intermediate returns to the stable ground state, photons (hM) are emitted simultaneously, and a luminescence signal measuring instrument is used to measure the quantum yield of the light. In the immune reaction system, the luminescent substance (generating an excited intermediate under the excitation of a reactant) is directly labeled on the antigen (chemiluminescent immunoassay) or antibody (immunochemiluminescent assay), or an enzyme acts on the luminescent substrate. Currently, chemiluminescent immunoassays generally use a fully automatic immunoassay analyzer for detection, and a sampling needle is used in the fully automatic immunoassay analyzer. However, the existing sampling needles have too low degrees of freedom and cannot aspirate and add liquid arbitrarily in three-dimensional space, which limits the layout of the whole machine. Summary of the Invention

[0003] Aiming at the problems raised in the above background art, the purpose of the present utility model is to provide a sampling needle with three degrees of freedom.

[0004] To achieve the above technical purpose, the technical solution adopted by the present utility model is as follows:

[0005] A sampling needle with three degrees of freedom includes an X-direction moving mechanism, a Y-direction moving mechanism, and a Z-direction moving mechanism with the same structure. The Y-direction moving mechanism is connected to the output end of the X-direction moving mechanism, the Z-direction moving mechanism is connected to the output end of the Y-direction moving mechanism, and a vertically downward sampling needle is connected to the output end of the Z-direction moving mechanism.

[0006] Further defined, it also includes a U-shaped base frame, and the X-direction moving mechanism is installed through the upper cross beam of the base frame. With such a structural design, the installation position is provided by the base frame.

[0007] Further defined, the X-direction moving mechanism includes an X-direction motor, an X-direction synchronous pulley, an X-direction synchronous belt, an X-direction slide rail, and an X-direction slide block. The X-direction synchronous belt is tightened by two X-direction synchronous pulleys. The output end of the X-direction motor is power-connected to one of the X-direction synchronous pulleys. The X-direction slide block is slidably connected to the X-direction slide rail and fixedly connected to the X-direction synchronous belt at the same time. With such a structural design, power is provided by the X-direction motor to drive the X-direction synchronous pulley to rotate, drive the X-direction synchronous belt to move, and thus enable the X-direction slide block to move under the guidance of the X-direction slide rail.

[0008] Further defined, the Y-direction moving mechanism includes a Y-direction motor, a Y-direction synchronous pulley, a Y-direction synchronous belt, a Y-direction slide rail and a Y-direction slide block. The Y-direction synchronous belt is tightened by two Y-direction synchronous pulleys. The output end of the Y-direction motor is power-connected to one of the Y-direction synchronous pulleys. The Y-direction slide block is slidably connected to the Y-direction slide rail and fixedly connected to the Y-direction synchronous belt at the same time. With such a structural design, power is provided by the Y-direction motor to drive the Y-direction synchronous pulley to rotate, driving the Y-direction synchronous belt to move, so that the Y-direction slide block moves under the guidance of the Y-direction slide rail.

[0009] Further defined, the Z-direction moving mechanism includes a Z-direction motor, a Z-direction synchronous pulley, a Z-direction synchronous belt, a Z-direction slide rail and a Z-direction slide block. The Z-direction synchronous belt is tightened by two Z-direction synchronous pulleys. The output end of the Z-direction motor is power-connected to one of the Z-direction synchronous pulleys. The Z-direction slide block is slidably connected to the Z-direction slide rail and fixedly connected to the Z-direction synchronous belt at the same time. With such a structural design, power is provided by the Z-direction motor to drive the Z-direction synchronous pulley to rotate, driving the Z-direction synchronous belt to move, so that the Z-direction slide block moves under the guidance of the Z-direction slide rail.

[0010] Advantages of the present utility model:

[0011] 1. The sampling needle can suck and add liquid arbitrarily in three-dimensional space, without any limitation on the layout of the whole machine;

[0012] 2. The sampling needle realizes the functional design of three degrees of freedom, and still maintains the advantage of simple structure, with high use stability. Brief description of the drawings

[0013] The present utility model can be further illustrated by the non-limiting embodiments given in the drawings;

[0014] Figure 1 It is a schematic structural diagram of an embodiment of a sampling needle with three degrees of freedom of the present utility model;

[0015] Figure 2 It is a front view of an embodiment of a sampling needle with three degrees of freedom of the present utility model;

[0016] Figure 3 It is a top view of an embodiment of a sampling needle with three degrees of freedom of the present utility model;

[0017] Figure 4 It is a right view of an embodiment of a sampling needle with three degrees of freedom of the present utility model;

[0018] The main component symbols are explained as follows:

[0019] Base frame 1;

[0020] X-axis motor 21, X-axis slide rail 22, X-axis slider 23, X-axis synchronous pulley 24, X-axis synchronous belt 25;

[0021] Y-axis motor 31, Y-axis slide rail 32, Y-axis slider 33, Y-axis synchronous pulley 34, Y-axis synchronous belt 35;

[0022] Z-axis motor 41, Z-axis slide rail 42, Z-axis slider 43, Z-axis synchronous pulley 44, Z-axis synchronous belt 45;

[0023] Sampling needle 5. Specific embodiments

[0024] In order to enable those skilled in the art to better understand the present utility model, the technical solutions of the present utility model will be further described below with reference to the accompanying drawings and embodiments.

[0025] As Figures 1-4 shown, a sampling needle with three degrees of freedom of the present utility model includes an X-axis moving mechanism, a Y-axis moving mechanism, and a Z-axis moving mechanism with the same structure. The Y-axis moving mechanism is connected to the output end of the X-axis moving mechanism, the Z-axis moving mechanism is connected to the output end of the Y-axis moving mechanism, and the output end of the Z-axis moving mechanism is connected with a vertically downward sampling needle 5.

[0026] Preferably, it further includes a U-shaped base frame 1. The X-axis moving mechanism is installed through the upper cross beam of the base frame 1. With such a structural design, the base frame 1 provides an installation position. In fact, other structures for providing the installation position can also be specifically considered according to the specific situation.

[0027] Preferably, the X-axis moving mechanism includes an X-axis motor 21, an X-axis synchronous pulley 24, an X-axis synchronous belt 25, an X-axis slide rail 22, and an X-axis slider 23. The X-axis synchronous belt 25 is tightened by two X-axis synchronous pulleys 24. The output end of the X-axis motor 21 is power-connected to one of the X-axis synchronous pulleys 24. The X-axis slider 23 is slidably connected to the X-axis slide rail 22 and fixedly connected to the X-axis synchronous belt 25 at the same time. With such a structural design, power is provided by the X-axis motor 21 to drive the X-axis synchronous pulley 24 to rotate, driving the X-axis synchronous belt 25 to move, so that the X-axis slider 23 moves under the guidance of the X-axis slide rail 22. In fact, other structural shapes of the X-axis moving mechanism can also be specifically considered according to the specific situation.

[0028] Preferably, the Y-direction moving mechanism includes a Y-direction motor 31, Y-direction synchronous pulleys 34, a Y-direction synchronous belt 35, a Y-direction slide rail 32 and a Y-direction slider 33. The Y-direction synchronous belt 35 is tensioned by two Y-direction synchronous pulleys 34. The output end of the Y-direction motor 31 is power-connected to one of the Y-direction synchronous pulleys 34. The Y-direction slider 33 is slidably connected to the Y-direction slide rail 32 and fixedly connected to the Y-direction synchronous belt 35 at the same time. With such a structural design, power is provided by the Y-direction motor 31 to drive the Y-direction synchronous pulley 34 to rotate, driving the Y-direction synchronous belt 35 to move, so that the Y-direction slider 33 moves under the guidance of the Y-direction slide rail 32. In fact, other structural shapes of the Y-direction moving mechanism can also be considered according to specific circumstances.

[0029] Preferably, the Z-direction moving mechanism includes a Z-direction motor 41, Z-direction synchronous pulleys 44, a Z-direction synchronous belt 45, a Z-direction slide rail 42 and a Z-direction slider 43. The Z-direction synchronous belt 45 is tensioned by two Z-direction synchronous pulleys 44. The output end of the Z-direction motor 41 is power-connected to one of the Z-direction synchronous pulleys 44. The Z-direction slider 43 is slidably connected to the Z-direction slide rail 42 and fixedly connected to the Z-direction synchronous belt 45 at the same time. With such a structural design, power is provided by the Z-direction motor 41 to drive the Z-direction synchronous pulley 44 to rotate, driving the Z-direction synchronous belt 45 to move, so that the Z-direction slider 43 moves under the guidance of the Z-direction slide rail 42. In fact, other structural shapes of the Z-direction moving mechanism can also be considered according to specific circumstances.

[0030] In the implementation of this case, the pipetting needle 5 located at the output end is driven by the X-direction moving mechanism, Y-direction moving mechanism and Z-direction moving mechanism to suck and add liquid arbitrarily in three-dimensional space, and there is no restriction on the layout of the whole machine;

[0031] The X-direction moving mechanism, Y-direction moving mechanism and Z-direction moving mechanism have the same motion form. Taking the motion process of the X-direction moving mechanism as an example, the X-direction motor 21 provides power to drive the X-direction synchronous pulley 24 to rotate, driving the X-direction synchronous belt 25 to move, so that the X-direction slider 23 moves under the guidance of the X-direction slide rail 22.

[0032] The above embodiments only exemplarily illustrate the principles and effects of the present invention, rather than limiting the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A sample injection needle with three degrees of freedom, characterized in that: It comprises an X-direction moving mechanism, a Y-direction moving mechanism and a Z-direction moving mechanism with the same structure, wherein the Y-direction moving mechanism is connected to the output end of the X-direction moving mechanism, the Z-direction moving mechanism is connected to the output end of the Y-direction moving mechanism, and the output end of the Z-direction moving mechanism is connected to a sample addition needle (5) pointing vertically downward.

2. A sample injection needle with three degrees of freedom according to claim 1, characterized in that: It also includes a base frame (1) in the shape of an “X”, and the X-direction moving mechanism is installed via an upper crossbeam of the base frame (1).

3. A three-degree-of-freedom sample needle according to claim 1, characterized in that: The X-direction moving mechanism comprises an X-direction motor (21), an X-direction synchronous wheel (24), an X-direction synchronous belt (25), an X-direction slide rail (22) and an X-direction slider (23); the X-direction synchronous belt (25) is tightened by two X-direction synchronous wheels (24); the output end of the X-direction motor (21) is dynamically connected to one of the X-direction synchronous wheels (24); the X-direction slider (23) is slidably connected to the X-direction slide rail (22) and fixedly connected to the X-direction synchronous belt (25).

4. A sample injection needle with three degrees of freedom according to claim 3, characterized in that: The Y-direction moving mechanism comprises a Y-direction motor (31), a Y-direction synchronous wheel (34), a Y-direction synchronous belt (35), a Y-direction slide rail (32) and a Y-direction slider (33); the Y-direction synchronous belt (35) is tightened by two Y-direction synchronous wheels (34); the output end of the Y-direction motor (31) is dynamically connected to one of the Y-direction synchronous wheels (34); the Y-direction slider (33) is slidably connected to the Y-direction slide rail (32) and fixedly connected to the Y-direction synchronous belt (35).

5. A three-degree-of-freedom sample needle according to claim 4, characterized in that: The Z-direction moving mechanism comprises a Z-direction motor (41), a Z-direction synchronous wheel (44), a Z-direction synchronous belt (45), a Z-direction slide rail (42) and a Z-direction slider (43); the Z-direction synchronous belt (45) is tightened by two Z-direction synchronous wheels (44); the output end of the Z-direction motor (41) is dynamically connected to one of the Z-direction synchronous wheels (44); the Z-direction slider (43) is slidably connected to the Z-direction slide rail (42) and fixedly connected to the Z-direction synchronous belt (45).

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