Liquid injection tube fixing assembly and chemiluminescence immunoassay analyzer

Abstract

The utility model discloses a liquid injection tube fixing assembly and a chemiluminescence immunity analyzer, and relates to the technical field of medical instruments. The liquid injection pipe fixing assembly comprises a mounting block, a first shading piece and a guide pipe fixing connector. A fixing hole suitable for fixing the liquid injection pipe is formed in the mounting block; the first shading piece is arranged on the fixing hole, a pipe passing hole is formed in the position, corresponding to the fixing hole, of the first shading piece, and the first shading piece is used for shading ambient light above the liquid injection end of the liquid injection pipe; the guide pipe fixing joint is arranged at the fixing hole of the mounting block and is provided with a pipe fixing hole; and the fixing hole, the pipe fixing hole and the pipe passing hole are concentrically arranged. According to the utility model, the liquid injection tube fixing structure of the chemiluminescence immunity analyzer is improved, the shading effect is effectively improved, and the accuracy of a test result is improved; meanwhile, a good rapid uniform mixing effect is achieved, and it is ensured that a test result has repeatability.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially, and it is a kind of liquid injection pipe fixing assembly and chemiluminescence immunoassay analyzer. BACKGROUND

[0002] In full-automatic chemiluminescence immunoassay analyzer, excitation solution (main component is NaOH solution) is used for the excitation and photometric process of luminescent label (acridine fat). Since acridine fat is flash-type luminescent object, the luminescent time is extremely short, and if good and fast mixing effect cannot be guaranteed when injecting liquid, the repeatability of test result will not be guaranteed.

[0003] In prior art, liquid injection pipe is installed on photodisk through fixing block, and the perpendicularity of liquid injection pipe is difficult to effectively guarantee, excitation solution is often injected to reaction cup along trajectory with certain angle, which leads to poor mixing efficiency of reaction liquid, and reaction substance is not mixed sufficiently, which affects the accuracy of test result to some extent. UTILITY MODEL CONTENT

[0004] The utility model mainly aims at providing a kind of liquid injection pipe fixing assembly and chemiluminescence immunoassay analyzer, to guarantee that excitation solution is vertically injected to reaction cup, realize that reaction liquid is mixed quickly, ensure that reaction substance can be mixed sufficiently, to improve the accuracy of test result.

[0005] To realize the above-mentioned purpose, the utility model provides a kind of liquid injection pipe fixing assembly, comprising:

[0006] Fixing hole suitable for fixing the liquid injection pipe is arranged in the installation block;

[0007] First light shielding piece is arranged on the fixing hole, and the first light shielding piece is provided with tube passing hole corresponding to the position of the fixing hole, and is used to shield ambient light above the liquid injection end of the liquid injection pipe;And

[0008] Catheter fixing connector is arranged at the fixing hole of the installation block, and the catheter fixing connector has tube fixing hole;The fixing hole, the tube fixing hole and the tube passing hole are concentrically arranged.

[0009] Optionally, the liquid injection pipe fixing assembly further comprises photodisk, and the installation block is arranged on the photodisk, and the photodisk is provided with through hole corresponding to the position of the fixing hole.

[0010] Optionally, the fixing hole, the tube fixing hole and the tube passing hole are arranged along the height direction of the photodisk.

[0011] Optionally, the liquid injection pipe fixing assembly further comprises second light shielding piece, and the second light shielding piece is arranged at the contact between the installation block and the photodisk, and is used to block assembly gap, to prevent ambient light from penetrating.

[0012] Optionally, the second light shielding member is a sealing ring, and the bottom of the mounting block is provided with an annular groove, and the sealing ring is mounted in the annular groove and abuts against the light measuring disc.

[0013] Optionally, the light measuring disc is concavely provided with a sink, and the mounting block is embedded in the sink, and the through hole is arranged on the bottom of the sink.

[0014] Optionally, the first light shielding member is a light shielding cover, a light shielding block or a plate.

[0015] Optionally, the liquid injection tube fixing assembly further comprises a light shielding sleeve, and the light shielding sleeve is adapted to be sleeved on the outer periphery of at least one segment of the liquid injection tube.

[0016] Optionally, the catheter fixing joint is a clamp joint, and the clamp joint is adapted to fix the liquid injection tube with a torque of 0.10-0.20 N·m.

[0017] To achieve the above object, the utility model further provides a chemiluminescence immunoassay analyzer, including above-mentioned liquid injection tube fixing assembly, the liquid injection tube fixing assembly includes:

[0018] a mounting block provided with a fixing hole adapted to fix the liquid injection tube;

[0019] a first light shielding member arranged on the fixing hole, the first light shielding member being provided with a tube passing hole corresponding to the position of the fixing hole and being used for shielding ambient light above the liquid injection end of the liquid injection tube; and

[0020] a catheter fixing joint arranged at the fixing hole of the mounting block, the catheter fixing joint being provided with a tube fixing hole; and the fixing hole, the tube fixing hole and the tube passing hole are concentrically arranged.

[0021] In the technical scheme of the utility model, the liquid injection tube fixing assembly comprises a mounting block, a first light shielding member and a catheter fixing joint; the mounting block is provided with a fixing hole adapted to fix the liquid injection tube; the first light shielding member is arranged on the fixing hole, and the first light shielding member is provided with a tube passing hole corresponding to the position of the fixing hole and is used for shielding ambient light above the liquid injection end of the liquid injection tube; the catheter fixing joint is arranged at the fixing hole of the mounting block, and the catheter fixing joint is provided with a tube fixing hole; and the fixing hole, the tube fixing hole and the tube passing hole are concentrically arranged.

[0022] In addition, the liquid injection pipe fixing structure of the chemiluminescence immunoassay analyzer is improved, the light shielding effect is effectively improved, external light can be avoided from being injected from the top of the liquid injection pipe fixing position, external light can be avoided from penetrating through the assembly gap, and the accuracy of test results is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from the structures shown in the drawings without creative labor.

[0024] Figure 1 It is an explosion view of the liquid injection pipe fixing assembly of the present application;

[0025] Figure 2 It is another explosion view of the liquid injection pipe fixing assembly of the present application;

[0026] Figure 3 It is a back structure schematic view of the liquid injection pipe fixing assembly of the present application;

[0027] Figure 4 It is an explosion view of the liquid injection pipe fixing assembly of the present application (without light measuring disc);

[0028] Figure 5 It is another angle explosion view of the liquid injection pipe fixing assembly of the present application (without light measuring disc).

[0029] Explanation of reference numerals:

[0030] 10, light measuring disc; 20, mounting block; 30, first light shielding piece; 40, second light shielding piece; 50, guide pipe fixing joint; 100, liquid injection pipe; 10a, through hole; 10b, sink groove; 20a, fixing hole; 30a, pipe passing hole.

[0031] The realization, functional characteristics and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] It should be noted that if the embodiment of the utility model has directionality indication (such as up, down, left, right, front, back), the directionality indication is only used to explain the relative position relationship, movement condition and the like between components in a certain specific posture (as shown in the drawing), if the specific posture changes, the directionality indication also changes accordingly.

[0034] In the description of the utility model, it should be noted that unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0035] In addition, if the embodiment of the utility model has the description of "first", "second" and the like, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one feature. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0036] When injecting, the reaction cup is in the light measuring disc, and needs to be completely isolated from external light, including direct penetration of external light and light reflected in the pipeline into the light measuring disc.

[0037] In the prior art, the injection tube is fixed on the light measuring disc through a fixing structure, and the fixed part of the injection tube is generally shaded by setting a light shield, however, a small amount of light still penetrates through the assembly gap between the fixing structure and the light measuring disc, which affects the accuracy of the test results to some extent.

[0038] For this purpose, the utility model provides a kind of injection tube fixing assembly, which can be applied to chemiluminescence immunoassay analyzer or other devices needing to fix injection tube and carry out shading treatment, which is not limited here.

[0039] Reference Figures 1 to 5In one embodiment of this utility model, the liquid injection tube fixing assembly includes a measuring disc 10, a mounting block 20, a first light-shielding member 30, and a second light-shielding member 40. The measuring disc 10 is provided with a through hole 10a. The mounting block 20 is disposed on the measuring disc 10, and a fixing hole 20a is provided on the mounting block 20 at a position corresponding to the through hole 10a, which is suitable for fixing the liquid injection tube 100 such as an FEP tube. The first light-shielding member 30 is disposed on the fixing hole 20a, and a through hole 30a is provided on the first light-shielding member 30 at a position corresponding to the fixing hole 20a, and is used to block the ambient light above the liquid injection end of the liquid injection tube 100. The second light-shielding member 40 is disposed at the contact point between the mounting block 20 and the measuring disc 10, and is used to block the assembly gap to prevent ambient light from penetrating.

[0040] In this embodiment, the first light-shielding component 30 may be a light-shielding cover, light-shielding plate or block, or it may be assembled from two or more components, or two or more components may be disposed in different positions for light shielding, which is not limited here.

[0041] The second light-shielding component 40 can be a sealing ring, sealing plate, or block, etc. Similarly, the second light-shielding component 40 can also be assembled from two or more components, or the two or more components can be disposed in different positions for light shielding, which is not limited here.

[0042] More preferably, such as Figure 1 As shown, when the second light-shielding component 40 is a sealing ring, an annular groove adapted to it can be opened at the bottom of the mounting block 20. The sealing ring is installed in the annular groove and abuts against the measuring disc 10. This can effectively block the assembly gap and further enhance the light-shielding effect.

[0043] It is understood that this utility model improves the fixing structure of the injection tube 100 of the chemiluminescence immunoassay analyzer, effectively enhancing the light-shielding effect. It not only prevents external light from entering from above the fixing point of the injection tube 100, but also prevents external light from seeping in through the assembly gap, greatly improving the accuracy of the test results.

[0044] Reference Figure 1 and Figure 2 In one embodiment, the measuring optical disc 10 may have a recessed groove 10b, the mounting block 20 is embedded in the groove 10b, and the through hole 10a is formed on the bottom of the groove 10b. This arrangement facilitates assembly while further preventing external light from penetrating. In addition, this structural design also helps to reduce the overall size.

[0045] To further enhance the light-shielding effect of the fixing component, in one embodiment, the injection tube fixing component may further include a light-shielding sleeve, which is adapted to be fitted onto the outer periphery of at least a section of the injection tube 100. The light-shielding sleeve is preferably a black sleeve, but is not limited here.

[0046] In this embodiment, the whole injection tube 100 is sleeved with a light shielding sleeve, so that the ambient light can not be totally reflected in the pipeline and enter the light meter disc 10.

[0047] It is worth noting that the size of the through-hole 30a is designed to ensure that the hole wall is tightly matched with the light shielding sleeve, so that the ambient light cannot enter the first light shielding member 30 from the gap of the hole.

[0048] It should be noted that the acridine fat is a flash type light emitting object, and the light emitting time is very short. If good and fast mixing effect cannot be ensured during injection, the repeatability of the test result will not be guaranteed. However, this point is often ignored in the prior art.

[0049] For this, the utility model also makes related improvements to the injection tube fixing assembly:

[0050] Based on the above embodiment, the injection tube fixing assembly can further include a catheter fixing connector 50 provided at the fixing hole 20a of the mounting block 20, and the catheter fixing connector 50 has a pipe fixing hole. In order to improve the stability of the fixing assembly for fixing the injection tube, so that the excitation liquid can be more stably and uniformly injected into the reaction cup.

[0051] In this embodiment, the catheter fixing connector 50 can adopt a clamp and a clamp connector or other connectors, which are not limited here.

[0052] When installing, the clamp connector can be fixed to the injection tube with a torque of 0.10-0.20 N·m. Especially when a torque of 0.15 N·m is used, the inner diameter of the injection tube can be ensured not to change under the premise that the clamp connector is not loose, the kinetic energy loss of the excitation liquid flow can be minimized, and it is ensured that the excitation liquid injected by the injection tube can be quickly mixed.

[0053] Further, with reference to Figure 1 In this embodiment, the fixing hole 20a, the pipe fixing hole and the through-hole 30a are concentrically arranged. In this way, the rapid mixing effect of the excitation liquid can be further improved.

[0054] When fixing the injection tube 100, the injection tube 100 can pass through the first light shielding member 30, the catheter fixing connector 50 and the mounting block 20 in sequence from top to bottom, and the hole positions on the three components are concentrically arranged to ensure that the injection tube cannot be deviated in space and is completely perpendicular to the reaction cup.

[0055] Further, the fixing hole 20a, the pipe fixing hole and the through-hole 30a are all arranged along the height direction of the light meter disc 10. In this way, the excitation liquid can be vertically injected into the reaction cup, the perpendicularity of the injection tube is ensured, and the rapid mixing effect of the excitation liquid is further improved.

[0056] In summary, the liquid injection pipe fixing structure adopts the first light shielding piece 30 and the second light shielding piece 40 to avoid light in double, and meanwhile, the light penetrating directly and the light in the pipeline totally reflected and introduced into the light measuring disc 10 are avoided from entering into the light measuring disc 10. The liquid injection pipe fixing assembly adopts the three-hole vertical concentric design of the mounting block 20, the pipe fixing joint 50 and the first light shielding piece 30, so that the excitation liquid can be vertically injected into the reaction cup, and the liquid injection is greatly ensured to be quickly mixed. The liquid injection pipe fixing assembly uses the clamp joint and the torsion control mode in the fixing of the pipeline, under the premise of ensuring that the clamp joint is not loose, the inner diameter of the liquid injection pipe is ensured not to change, the kinetic energy loss of the excitation liquid flow is minimized, and the excitation liquid can be quickly mixed.

[0057] The utility model discloses further a kind of chemiluminescence immunoassay analyzer, and the chemiluminescence immunoassay analyzer includes liquid injection pipe fixing assembly, and the specific structure of the liquid injection pipe fixing assembly refers to above embodiment, since the chemiluminescence immunoassay analyzer proposed in the utility model includes all the schemes of all the embodiments of above liquid injection pipe fixing assembly, therefore, at least have the same technical effect with the liquid injection pipe fixing assembly, not one by one expounded here.

[0058] The above is only optional embodiment of the utility model, and not therefore limit the patent range of the utility model, all equivalent structural transformations made in the utility model specification and attached drawing contents under the utility model inventive concept, or direct / indirect application in other related technical fields are included in the patent protection range of the utility model.

Claims

1. A liquid injection pipe fixing assembly characterized by comprising: The application relates to a liquid injection tube fixing assembly. The application relates to a liquid injection tube fixing assembly. The application relates to a liquid injection tube fixing assembly. The application relates to a liquid injection tube fixing assembly.

2. The liquid injection tube fixing assembly according to claim 1, wherein The application relates to a liquid injection tube fixing assembly.

3. The liquid injection tube fixing assembly according to claim 2, wherein The application relates to a liquid injection tube fixing assembly.

4. The liquid injection tube fixing assembly according to claim 2, wherein The application relates to a liquid injection tube fixing assembly.

5. The liquid injection tube fixing assembly according to claim 4, wherein The application relates to a liquid injection tube fixing assembly.

6. The liquid injection tube fixing assembly according to claim 2, wherein The application relates to a liquid injection tube fixing assembly.

7. The liquid injection tube fixing assembly according to claim 1, wherein The application relates to a liquid injection tube fixing assembly.

8. The liquid injection tube fixing assembly according to claim 1, wherein The application relates to a liquid injection tube fixing assembly.

9. The liquid injection tube fixing assembly according to claim 1, wherein The application relates to a liquid injection tube fixing assembly.

10. A chemiluminescent immunoassay instrument, characterized by comprising: The application relates to a liquid injection tube fixing assembly. The application relates to a liquid injection tube fixing assembly. The application relates to a liquid injection tube fixing assembly. The application relates to a liquid injection tube fixing assembly. The application relates to a liquid injection tube fixing assembly. The application relates to a liquid injection tube fixing assembly. The application relates to a liquid injection tube fixing assembly. The application relates to a liquid injection tube fixing assembly. The application relates to a liquid injection tube fixing assembly. The application relates to a liquid injection tube fixing assembly. The application relates to a liquid injection tube fixing assembly. The application relates to a liquid injection tube fixing assembly. The application relates to a liquid injection tube fixing assembly. 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