Reagent bottle loading device

Abstract

The utility model provides a reagent bottle loading device, which belongs to the technical field of medical equipment and comprises a base provided with a mounting cavity and a puncture hole communicated with the mounting cavity; the mounting seat is fixed relative to the base; the puncture seat is detachably connected with the mounting seat, the puncture seat is provided with a puncture needle, a gas channel and a liquid channel, and the puncture needle penetrates through the puncture hole and extends into the mounting cavity; the reagent bottle body comprises a bottle body and a bottle plug, the bottle plug is detachably connected with the bottle body, the bottle plug is provided with a puncture film, and the bottle body can be inserted into the mounting cavity so that the puncture film can be punctured by the puncture needle. The infusion bottle has the advantages that the puncture needle, the gas channel and the liquid channel are integrated on the puncture seat, the puncture needle can puncture the puncture film when the bottle body is inserted into the mounting cavity, smooth infusion of the liquid channel is guaranteed under the action of the gas channel, and liquid cannot drip when the puncture needle is pulled out.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment and relates to a reagent bottle loading device. Background Art

[0002] Currently, in the field of automated analysis such as biochemical analysis and immunoassay, certain reagents are used. These reagents need to be dispensed using an independent liquid path system, that is, the inlet end of the liquid path is connected to the reagent bottle, the reagent is aspirated from the reagent bottle, and the outlet end of the liquid path is connected to devices such as reaction vessels or measurement chambers to achieve reagent dispensing. These reagents are generally common for multiple test items. For example, the cleaning solution in biochemical analysis is used to clean the instrument fluid pipeline, sampling needle, and reaction cup; the cleaning buffer solution in immunoassay is used to clean the unbound substances in the heterogeneous chemiluminescence immunoassay B / F (Bound-Free, cleaning and separation); the pre-excitation solution, excitation solution, or luminescent substrate solution in immunoassay is used for the luminescence reaction after the heterogeneous chemiluminescence immunoassay B / F; reagents such as diluent and hemolytic agent in blood cell analysis are used for blood cell detection. Such reagents are generally filled in common reagent bottles (or reagent barrels, hereinafter collectively referred to as reagent bottles). When the old reagent bottles on the instrument are used up, they need to be unloaded first and then new reagent bottles need to be loaded.

[0003] In the prior art, the reagent bottle has a common structure, such as square or cylindrical. When loading it onto the loading position on the instrument, the cap on the new reagent bottle needs to be unscrewed and discarded first, then the old reagent bottle on the loading position needs to be unloaded, and then the new reagent bottle is replaced. During the process of unloading the old reagent bottle, it is necessary to manually unscrew the cap connected to the liquid suction tube (some caps are also connected with liquid level sensors such as liquid level floats). One hand holds the cap and lifts it upward until the liquid suction tube is separated from the bottle mouth, and the other hand takes away the old reagent bottle, and then the liquid suction tube is placed into the new reagent bottle and the cap is screwed on. The cap connected to the liquid suction tube has a different structure from the new cap on the new reagent bottle and adopts a special design. In order to maintain the pressure inside the bottle, there is generally a vent part on the cap or the bottom of the bottle, or a ventilation pipeline is connected.

[0004] The structure of this common reagent bottle is complex, and it is necessary to specially design the reagent bottle cap used on the instrument and special liquid level sensors such as liquid level floats, resulting in high usage costs; the reagent loading operation requires the user to cooperate with both hands. During the loading process, the reagent adsorbed on the liquid suction tube and the float is likely to drip, and the dripping reagent has potential biological risks and is likely to cause harm to people.

[0005] For example, a utility model patent with an application number of CN104107733B provides a reagent bottle, its reagent loading device and method. The reagent bottle includes a bottle body, a bottle cap and a bottle stopper. The bottle cap covers the top of the bottle body. The bottom of the bottle body has a through hole, and the bottle stopper is plugged at the through hole. The reagent loading device includes a bracket and a puncture needle. The bracket is used to support and guide the reagent bottle. The puncture needle includes a needle tip, a needle seat and a threaded needle tail that are fixedly connected in sequence.

[0006] In summary, although some existing technical solutions solve the problem of easy dripping of reagents, since the bottle cap needs to be unscrewed and the puncture needle needs to pass through the bottom bottle stopper during reagent loading to complete the loading of the reagent bottle, there is still the problem of inconvenient use and there is a large room for improvement. Summary of the Invention

[0007] The purpose of the present utility model is to propose a reagent bottle loading device for the above problems existing in the prior art.

[0008] The purpose of the present utility model can be achieved by the following technical solutions: A reagent bottle loading device includes: a base provided with an installation cavity and a puncture hole, the puncture hole communicating with the installation cavity; a mounting seat fixed relative to the base; a puncture seat detachably connected to the mounting seat, the puncture seat being provided with a puncture needle, a gas passage and a liquid passage, the puncture needle passing through the puncture hole and extending into the installation cavity, the two ends of the gas passage opening respectively at the puncture seat and the puncture needle, and the two ends of the liquid passage opening respectively at the puncture seat and the puncture needle; a reagent bottle body including a bottle body and a bottle stopper, the bottle stopper being detachably connected to the bottle body, the bottle stopper being provided with a puncture membrane, and the bottle body being insertable into the installation cavity so that the puncture needle pierces the puncture membrane.

[0009] In the above-mentioned reagent bottle loading device, it further includes a bottle cap. The bottle stopper is connected to the bottle body through the bottle cap. The bottle body is provided with a first connecting portion, and the bottle cap is provided with a second connecting portion and a mounting hole. The bottle cap is detachably connected to the first connecting portion of the bottle body through the second connecting portion, and the bottle stopper is detachably connected to the mounting hole.

[0010] In the above-mentioned reagent bottle loading device, the mounting hole is provided with a limiting portion, the limiting portion being located at one end of the mounting hole close to the inside of the cap body when the bottle cap is connected to the bottle body, and the bottle stopper can contact the limiting portion.

[0011] In the reagent bottle loading device described above, the bottle stopper is provided with an extension portion, the outer diameter of the extension portion is less than or equal to the inner diameter of the limiting portion, a clamping ring is provided at one end of the extension portion away from the bottle stopper, the outer diameter of the clamping ring is greater than the inner diameter of the limiting portion, and the limiting portion can be located between the bottle stopper and the clamping ring so that the bottle stopper is clamped with the bottle cap.

[0012] In the reagent bottle loading device described above, the thickness of the bottle stopper is less than or equal to the distance from the opening at one end of the mounting hole away from the limiting portion to the limiting portion.

[0013] In the reagent bottle loading device described above, the first connecting portion is provided with an external thread, the second connecting portion is provided with an internal thread, and the bottle cap and the bottle body are threadedly connected through the first connecting portion and the second connecting portion.

[0014] In the reagent bottle loading device described above, it further includes a fastening screw. The mounting seat is provided with a first connecting hole, and the puncture seat is further provided with a second connecting hole. The fastening screw can pass through the second connecting hole and be threadedly connected with the first connecting hole.

[0015] In the reagent bottle loading device described above, the mounting seat is provided with a positioning hole, and the puncture needle sequentially passes through the positioning hole and the puncture hole and extends into the mounting cavity.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. The puncture needle, the gas channel and the liquid channel are integrated in the puncture seat. When the bottle body is inserted into the mounting cavity, the puncture needle can pierce the puncture membrane. Under the action of the gas channel, the liquid channel can ensure smooth infusion, and when the puncture needle is pulled out, the liquid will not drip due to the action of atmospheric pressure.

[0018] 2. The bottle stopper can rest against the limiting portion to prevent the bottle stopper from sliding up and down.

[0019] 3. The bottle stopper is clamped with the bottle cap through the clamping ring, which can conveniently complete the connection between the bottle stopper and the bottle cap, ensure that the bottle stopper will not slide into the bottle body, and at the same time can increase the sealing performance of the reagent bottle.

[0020] 4. The thickness of the bottle stopper is less than or equal to the distance from the opening at one end of the mounting hole away from the limiting portion to the limiting portion, preventing the bottle stopper from protruding from the bottle cap and ensuring that the bottle stopper can be completely inserted into the mounting hole of the bottle cap without being exposed.

[0021] 5. The puncture seat is detachably mounted on the mounting seat to facilitate the replacement of the puncture needle. Description of the Drawings

[0022] Figure 1An oblique axonometric view of a reagent bottle loading device of the present utility model.

[0023] Figure 2 Another oblique axonometric view of a reagent bottle loading device of the present utility model from a different perspective.

[0024] Figure 3 An exploded view of a reagent bottle loading device of the present utility model.

[0025] Figure 4 The front view of a reagent bottle loading device of the present utility model.

[0026] Figure 5 For Figure 4 A cross-sectional view from the A-A perspective.

[0027] Figure 6 For Figure 5 An enlarged view of part B.

[0028] In the figure, 100, base; 110, installation cavity; 120, puncture hole; 200, mounting seat; 210, first connection hole; 220, positioning hole; 300, puncture seat; 310, puncture needle; 320, gas channel; 330, liquid channel; 340, second connection hole; 400, reagent bottle body; 410, bottle body; 411, first connection part; 420, bottle stopper; 421, puncture membrane; 422, extension part; 423, clamping ring; 500, bottle cap; 510, installation hole; 511, limiting part; 520, second connection part; 600, fastening screw. Detailed implementation manners

[0029] The following are specific embodiments of the present utility model in combination with the accompanying drawings to further describe the technical solutions of the present utility model, but the present utility model is not limited to these embodiments.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If this specific posture changes, the directional indications will also change accordingly.

[0031] In addition, in the present utility model, descriptions such as "first", "second", "one" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0032] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] In addition, the technical solutions between various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0034] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the technical field to which the present utility model belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

[0035] As Figures 1 - 6 shown, a reagent bottle loading device includes: a base 100, which is provided with an installation cavity 110 and a puncture hole 120, and the puncture hole 120 communicates with the installation cavity 110;

[0036] Wherein, the mounting seat 200 is fixed relative to the base 100;

[0037] Wherein, the puncture seat 300 is detachably connected to the mounting seat 200. The puncture seat 300 is provided with a puncture needle 310, a gas channel 320 and a liquid channel 330. The puncture needle 310 passes through the puncture hole 120 and extends into the installation cavity 110. The two ends of the gas channel 320 are respectively opened at the puncture seat 300 and the puncture needle 310, and the two ends of the liquid channel 330 are respectively opened at the puncture seat 300 and the puncture needle 310;

[0038] Wherein, the reagent bottle body 400 includes a bottle body 410 and a bottle stopper 420. The bottle stopper 420 is detachably connected to the bottle body 410. The bottle stopper 420 is provided with a puncture membrane 421, and the bottle body 410 can be inserted into the installation cavity 110 so that the puncture needle 310 pierces the puncture membrane 421.

[0039] In this embodiment, the puncture needle 310, the gas channel 320, and the liquid channel 330 are integrated into the puncture base 300. When the bottle body 410 is inserted into the installation cavity 110, the puncture needle 310 can pierce through the puncture membrane 421. Under the action of the gas channel 320, the liquid channel 330 can ensure smooth infusion, and when the puncture needle 310 is pulled out, liquid dripping will not occur due to the action of atmospheric pressure.

[0040] In addition, the reagent bottle can be installed in the installation cavity 110 of the base 100 so that the bottle stopper 420 and the puncture hole 120 are on the same vertical line. Furthermore, the puncture needle 310 can accurately pass through the puncture membrane 421 and enter the reagent bottle. At the same time, a gas channel 320 is provided on the puncture needle 310 to keep the air pressure in the reagent bottle stable.

[0041] As Figures 1 - 6 shown, on the basis of the above embodiment, a bottle cap 500 is further included. The bottle stopper 420 is connected to the bottle body 410 through the bottle cap 500. The bottle body 410 is provided with a first connection portion 411, the bottle cap 500 is provided with a second connection portion 520 and an installation hole 510. The bottle cap 500 is detachably connected to the first connection portion 411 of the bottle body 410 through the second connection portion 520, and the bottle stopper 420 is detachably connected to the installation hole 510.

[0042] In this embodiment, both the bottle cap 500 and the bottle stopper 420 are detachable to facilitate reloading reagents into the empty bottle.

[0043] As Figures 1 - 6 shown, on the basis of the above embodiment, the installation hole 510 is provided with a limiting portion 511. The limiting portion 511 is located at one end of the installation hole 510 close to the inside of the cap body when the bottle cap 500 is connected to the bottle body 410, and the bottle stopper 420 can contact the limiting portion 511.

[0044] In this embodiment, the bottle stopper 420 can rest on the limiting portion 511 to prevent the bottle stopper 420 from sliding up and down.

[0045] As Figures 1 - 6 shown, on the basis of the above embodiment, the bottle stopper 420 is provided with an extension portion 422. The outer diameter of the extension portion 422 is less than or equal to the inner diameter of the limiting portion 511. A clamping ring 423 is provided at one end of the extension portion 422 away from the bottle stopper 420. The outer diameter of the clamping ring 423 is greater than the inner diameter of the limiting portion 511. The limiting portion 511 can be located between the bottle stopper 420 and the clamping ring 423 so that the bottle stopper 420 is clamped to the bottle cap 500.

[0046] In this embodiment, the bottle stopper 420 is snap-connected to the bottle cap 500 through the snap ring 423, which can facilitate the connection between the bottle stopper 420 and the bottle cap 500, ensure that the bottle stopper 420 does not slip into the bottle body 410, and at the same time increase the sealing performance of the reagent bottle.

[0047] As Figures 1 - 6 shown, on the basis of the above embodiment, the thickness of the bottle stopper 420 is less than or equal to the distance from the opening of the mounting hole 510 away from the limiting portion 511 to the limiting portion 511.

[0048] In this embodiment, the thickness of the bottle stopper 420 is less than or equal to the distance from the opening of the mounting hole 510 away from the limiting portion 511 to the limiting portion 511, which prevents the bottle stopper 420 from protruding from the bottle cap 500 and ensures that the bottle stopper 420 can be completely inserted into the mounting hole 510 of the bottle cap 500 without being exposed.

[0049] As Figures 1 - 6 shown, on the basis of the above embodiment, the first connecting portion 411 is provided with an external thread, the second connecting portion 520 is provided with an internal thread, and the bottle cap 500 and the bottle body 410 are threadedly connected through the first connecting portion 411 and the second connecting portion 520.

[0050] In this embodiment, the bottle cap 500 and the bottle body 410 are threadedly connected through the first connecting portion 411 and the second connecting portion 520, which can increase the overall stability.

[0051] As Figures 1 - 6 shown, on the basis of the above embodiment, a fastening screw 600 is further included. The mounting base 200 is provided with a first connection hole 210, and the puncture base 300 is further provided with a second connection hole 340. The fastening screw can pass through the second connection hole 340 and be threadedly connected to the first connection hole 210.

[0052] In this embodiment, the puncture base 300 is detachably mounted on the mounting base 200 to facilitate the replacement of the puncture needle 310.

[0053] As Figures 1 - 6 shown, on the basis of the above embodiment, the mounting base 200 is provided with a positioning hole 220, and the puncture needle 310 sequentially passes through the positioning hole 220 and the puncture hole 120 and extends into the mounting cavity 110.

[0054] In this embodiment, the positioning hole 220 and the puncture hole 120 provided on the mounting base 200 can guide the puncture needle 310 to accurately pass through the puncture membrane 421 and enter the reagent bottle.

Claims

1. A reagent bottle loading device, characterized in that: include: A base, which is provided with a mounting cavity and a puncture hole, wherein the puncture hole is communicated with the mounting cavity; A mounting base fixed relative to the base; A puncture seat, which is detachably connected to the mounting seat, the puncture seat is provided with a puncture needle, a gas channel and a liquid channel, the puncture needle passes through the puncture hole and extends into the mounting cavity, the two end openings of the gas channel are respectively located on the puncture seat and the puncture needle, and the two end openings of the liquid channel are respectively located on the puncture seat and the puncture needle; The reagent bottle body comprises a bottle body and a bottle stopper, wherein the bottle stopper is detachably connected to the bottle body, the bottle stopper is provided with a puncture membrane, and the bottle body can be inserted into the installation cavity so that the puncture needle punctures the puncture membrane.

2. A reagent bottle loading device as claimed in claim 1, characterized in that: It also includes a bottle cap, the bottle plug is connected to the bottle body through the bottle cap, the bottle body is provided with a first connecting part, the bottle cap is provided with a second connecting part and a mounting hole, the bottle cap is detachably connected to the first connecting part of the bottle body through the second connecting part, and the bottle plug is detachably connected to the mounting hole.

3. A reagent bottle loading device as claimed in claim 2, characterized in that: The mounting hole is provided with a limiting portion, and the limiting portion is located at an end of the mounting hole close to the inside of the bottle body when the bottle cap is connected to the bottle body, and the bottle plug can contact the limiting portion.

4. A reagent bottle loading device as claimed in claim 3, characterized in that: The bottle stopper is provided with an extension portion, the outer diameter of the extension portion is less than or equal to the inner diameter of the limiting portion, and a clamping ring is provided at one end of the extension portion away from the bottle stopper, the outer diameter of the clamping ring is greater than the inner diameter of the limiting portion, and the limiting portion can be located between the bottle stopper and the clamping ring so that the bottle stopper is clamped with the bottle cap.

5. A reagent bottle loading device as claimed in claim 4, characterized in that: The thickness of the bottle stopper is less than or equal to the distance from the opening of the mounting hole at one end away from the limiting portion to the limiting portion.

6. A reagent bottle loading device as claimed in claim 2, characterized in that: The first connection portion is configured as an external thread, the second connection portion is configured as an internal thread, and the bottle cap and the bottle body are threadedly connected via the first connection portion and the second connection portion.

7. A reagent bottle loading device as claimed in claim 1, characterized in that: It also includes a fastening screw. The mounting seat is provided with a first connecting hole, and the puncture seat is also provided with a second connecting hole. The fastening screw can pass through the second connecting hole and be threadedly connected to the first connecting hole.

8. A reagent bottle loading device as claimed in claim 1, characterized in that: The mounting seat is provided with a positioning hole, and the puncture needle passes through the positioning hole and the puncture hole in sequence and extends into the mounting cavity.

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