CN211978805U - Liquid storage tank and sample analyzer - Google Patents

Abstract

The application relates to the technical field of medical equipment, specifically discloses a liquid storage pot and sample analysis appearance, and the liquid storage pot includes: a tank body; the tank body comprises an upper tank body and a lower tank body, wherein the peripheral wall of the upper tank body is provided with a liquid inlet, and the peripheral wall of the lower tank body is provided with a liquid outlet; the internal portion of jar is equipped with a filter screen subassembly, and the filter screen subassembly intercommunication is gone up jar body and is gone up jar body down. In this way, it is internal that reagent accessible inlet gets into jar, and the filter screen subassembly can filter the bubble in the reagent at last jar body, and the liquid outlet setting is irritated the lower part at the stock solution simultaneously, because the bubble come-up, can effectively avoid the bubble to get into the low reaches of liquid storage pot.

Description

Liquid storage tank and sample analyzer

Technical Field

The application relates to the technical field of medical instruments, in particular to a liquid storage tank and a sample analyzer.

Background

Sample analyzers have found widespread use in the medical device technology field. A reservoir is typically provided within the sample analyzer to ensure that there is sufficient reagent. However, in the use process of the sample analyzer, bubbles are easily generated when the reagent is filled into the liquid storage tank, and in order to avoid the influence of the bubbles on the performance of the liquid path, in the prior art, a filter is usually added at the downstream of the liquid storage tank to remove the bubbles.

During the long-term development process, the inventor of the present application finds that the filter of the prior art has the following disadvantages when in use: 1) the filter increases the material cost; 2) the number of parts of the liquid path system is increased, so that the structure of the sample analyzer is huge; 3) the number of parts of the liquid path system is increased, so that the liquid leakage risk is increased; 4) in order to reduce the volume of the sample analyzer, a small filter is generally selected, but the small filter has a small flow section, so that impurities in the reagent easily block the filter, the flow resistance is increased, and bubbles are generated at the downstream of the filter.

SUMMERY OF THE UTILITY MODEL

The application provides a liquid storage pot and sample analysis appearance can filter the bubble in the reagent outside the liquid outlet, avoids the bubble to get into the low reaches part of liquid storage pot.

In one aspect, the present application provides a liquid storage tank comprising a tank body; the tank body comprises an upper tank body and a lower tank body, wherein the peripheral wall of the upper tank body is provided with a liquid inlet, and the peripheral wall of the lower tank body is provided with a liquid outlet; the internal portion of jar is equipped with a filter screen subassembly, and the filter screen subassembly intercommunication is gone up jar body and is gone up jar body down.

Wherein, the filter screen subassembly includes: the aperture range of the filter screen is 5-200 um; the filter screen support is installed between the upper tank body and the lower tank body, wherein the filter screen support is of a frame structure, the surface of at least one side of the filter screen support is a supporting plane, and the supporting plane is used for supporting the filter screen.

Wherein, the filter screen subassembly level or slope arrange in the internal portion of jar.

Wherein, the filter screen bonds or welds on filter screen support, and filter screen support's periphery wall bonds, spiro union or welds the inner wall at the jar body.

Wherein, the filter screen support includes support frame and the strengthening rib of being connected with the support frame.

Wherein, the liquid storage pot still includes: the tank cover is positioned at the upper part of the tank body and is connected with the upper tank body in a sealing way;

wherein, an air port is arranged on the tank cover and is used for connecting an external air pressure source.

The opening direction of the liquid outlet is parallel to the opening direction of the air port, so that the liquid outlet and the air port are arranged oppositely.

In another aspect, the present application provides a sample analyzer comprising: the liquid storage tank is the liquid storage tank; the reagent pool is connected with the liquid inlet of the liquid storage tank and is used for storing reagents participating in sample treatment; the liquid storage tank is selectively connected with the negative pressure source or the positive pressure source, the negative pressure source is used for establishing working negative pressure in the liquid storage tank, and the positive pressure source is used for establishing working positive pressure in the liquid storage tank; and the at least one reaction tank is connected with the liquid outlet of the liquid storage tank and is used for uniformly mixing the reagent and the sample added into the reaction tank to form corresponding liquid to be detected.

Wherein the sample analyzer further comprises: one end of the pipeline is connected with an air port of the liquid storage tank; and three ports of the three-way valve are respectively connected with the other end of the pipeline, the negative pressure source and the positive pressure source.

Wherein the sample analyzer further comprises: the quantitative pump is used for sucking quantitative reagents from the liquid storage tank and transferring the reagents to the corresponding reaction tank.

The beneficial effect of this application is: be different from prior art's condition, the liquid storage pot of this application includes a jar body, and a jar body is including last jar body and lower jar of body, and wherein the perisporium of last jar of body is equipped with a inlet, and the perisporium of lower jar of body is equipped with a liquid outlet. The internal portion of jar is equipped with a filter screen subassembly, and the filter screen subassembly intercommunication is gone up jar body and is gone up jar body down. In this way, it is internal that reagent accessible inlet gets into jar, and the filter screen subassembly can filter the bubble in the reagent at last jar body, and the liquid outlet setting is irritated the lower part at the stock solution simultaneously, because the bubble come-up, can effectively avoid the bubble to get into the low reaches of liquid storage pot.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:

FIG. 1 is a schematic diagram illustrating the construction of one embodiment of a fluid reservoir of the present application;

FIG. 2 is a schematic illustration of the construction of the screen assembly of FIG. 1;

FIG. 3 is a schematic view of the construction of the screen carrier of FIG. 2;

fig. 4 is a partial structural schematic view of the sample analyzer of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1, the present application provides a fluid reservoir tank 10, the fluid reservoir tank 10 comprising: a can 100. The tank 100 includes an upper tank 11 and a lower tank 12, and the upper tank 11 is communicated with the lower tank 12. Wherein, the upper tank 11 and the lower tank 12 can be an integral structure. In other embodiments, the tank 100 may be formed by detachably connecting the upper tank 11 and the lower tank 12, so as to facilitate the detachment and cleaning of the inside of the tank 100, and a sealing member (not shown) is disposed at the joint of the upper tank 11 and the lower tank 12, so that the sealing effect is good and liquid leakage is avoided.

A liquid inlet 111 is arranged on the peripheral wall of the upper tank body 11, a liquid outlet 121 is arranged on the peripheral wall of the lower tank body 12, a filter screen assembly 13 is arranged in the tank body 100, and the filter screen assembly 13 is communicated with the upper tank body 11 and the lower tank body 12.

Reagent can enter the tank 100 through the liquid inlet 111, and after bubbles in the reagent are filtered by the filter screen 131 assembly 13, the reagent flows out of the tank 100 through the liquid outlet 121. Preferably, the liquid outlet 121 is disposed at a lower portion of the bottom wall of the lower tank 12. More preferably, the liquid outlet 121 is disposed in the middle of the bottom wall of the lower tank 12, which is beneficial for feeding the reagent into the downstream of the liquid storage tank 10, improving the liquid outlet efficiency and reducing the generation of bubbles.

Different from the prior art, the liquid storage tank 10 of the present application includes a tank body 100, the tank body 100 includes an upper tank body 11 and a lower tank body 12, wherein a liquid inlet 111 is disposed on a peripheral wall of the upper tank body 11, and a liquid outlet 121 is disposed on a peripheral wall of the lower tank body 12. A filter screen assembly 13 is arranged in the tank 100, and the filter screen assembly 13 is communicated with the upper tank 11 and the lower tank 12. In this way, reagent can get into jar body 100 through inlet 111 in, filter screen subassembly 13 can filter the bubble in the reagent in last jar of body 11, and outlet 121 sets up in the stock solution and irritates the lower part simultaneously, because the bubble come-up, can effectively avoid the bubble to get into the low reaches of stock solution jar 10.

Referring to fig. 2, in one embodiment, the screen assembly 13 includes: a filter screen 131 and a filter screen bracket 132, wherein the filter screen bracket 132 is installed between the upper tank 11 and the lower tank 12.

The filter screen 131 has a pore size in the range of 5-200um, such as 5um, 50um, 100um, 150um or 200 um. Since the aperture of the filter screen 131 is smaller than the diameter of the bubbles, the bubbles will be isolated by the filter screen 131 in the upper tank 11, and can be prevented from entering the downstream of the liquid storage tank 10 along with the liquid outlet 121.

The screen support 132 is a frame structure, wherein the shape of the screen support 132 can be designed to be rectangular, circular or oval, wherein the outer circumferential wall of the screen support 132 can match with the shape and size of the inner wall of the tank 100, and further, the outer circumferential wall of the screen support 132 can be fixedly connected with the inner wall of the tank 100. Specifically, the outer circumferential wall of the screen bracket 132 may be bonded, screwed or welded to the inner wall of the tank 100.

Further, the surface of at least one side of the screen support 132 is a support plane for supporting the screen 131. The filter mesh 131 may be bonded or welded to the filter mesh holder 132.

Referring to fig. 3, in one embodiment, the filter frame 132 includes a frame 1321 and a reinforcement rib 1322 connected to the frame 1321.

Specifically, the filter screen bracket 132 is provided with a bracket frame 1321 and a reinforcing rib 1322 on the supporting plane, and the filter screen bracket 132 is provided with only the bracket frame 1321 on the rest surface. The screen carrier 132 may be designed as a one-piece structural carrier. The filter screen bracket 132 may also be designed to be formed by splicing a plurality of sheet-like bodies, or be formed by splicing more than two split brackets into a bracket with an integral structure. The screen support 132 will be made of a corrosion resistant material, for example, the screen support 132 may be made of a corrosion resistant plastic injection molded, a corrosion resistant plastic machined, a corrosion resistant metal machined.

Wherein the screen assembly 13 may be disposed horizontally or obliquely inside the tank 100.

With continued reference to FIG. 1, further, the fluid reservoir tank 10 further includes: the can lid 14 is positioned above the can body 100 and is hermetically connected to the upper can body 11. Wherein, the tank cover 14 is provided with an air port 141, and the air port 141 is used for connecting an external air pressure source.

The opening direction of the liquid outlet 121 and the opening direction of the air port 141 are parallel to each other, so that the liquid outlet 121 and the air port 141 are disposed opposite to each other.

Specifically, the air port 141 is designed above the liquid outlet port 121. The buoyancy calculation formula F is rho liquid gV row (wherein rho liquid is liquid density and unit kilogram/cubic meter; g is ratio of gravity to mass and unit Newton; and V row is volume of discharged liquid and unit cubic meter), so that upward buoyancy F of bubbles in liquid can be obtained, the bubbles are always in a floating state in the liquid storage tank, and the bubbles can be prevented from entering a liquid path system along with the liquid outlet 121. The air port 141 and the liquid inlet 111 are disposed at the upper portion of the tank 100, and the air port 141 is disposed at the tank cover 14, so that the air in the upper tank 11 can be discharged from the tank through the air port 141.

Referring to fig. 4, the present application also provides a sample analyzer 200, where the sample analyzer 200 may be used to perform analysis of a biological sample, which may be blood or a body fluid. The sample analyzer 200 may be a blood analyzer, a chemiluminescence analyzer, an immunofluorescence analyzer, or other in vitro diagnostic medical device. The sample analyzer 200 includes: a reservoir 10, a reagent reservoir 20, a negative pressure source 31, a positive pressure source 32, and at least one reaction reservoir 40.

The reservoir 10 is the reservoir 10 described above. The reagent reservoir 20 is connected to the liquid inlet 111 of the liquid storage tank 10, and the reagent reservoir 20 is used for storing reagents participating in sample processing. At least one reaction cell 40 is connected with the liquid outlet 121 of the liquid storage tank 10, and is used for uniformly mixing the reagent and the sample added to the reaction cell 40 to form a corresponding liquid to be detected.

The reservoir 10 may be selectively connected to either a negative pressure source 31 or a positive pressure source 32.

Specifically, the negative pressure source 31 is a device capable of providing negative pressure, such as a piston pump, a diaphragm pump, a peristaltic pump, a plunger pump, a syringe, and an air compressor, when in use, the negative pressure source 31 is used for establishing working negative pressure in the liquid storage tank 10, and the working negative pressure is used for driving the reagent in the reagent pool 20 to flow into the liquid storage tank 10.

Positive pressure source 32 refers to a device that can provide positive pressure, such as a piston pump, diaphragm pump, peristaltic pump, plunger pump, syringe, air compressor. Further, the positive pressure source 32 may be in direct communication with the ambient air. In use, the positive pressure source 32 is used to establish a positive working pressure within the reservoir 10, wherein the negative working pressure is used to drive the reagent within the reservoir 10 into the reaction cell 40.

Different from the prior art, the liquid storage tank 10 of the present application includes a tank body 100, the tank body 100 includes an upper tank body 11 and a lower tank body 12, wherein a liquid inlet 111 is disposed on a peripheral wall of the upper tank body 11, and a liquid outlet 121 is disposed on a peripheral wall of the lower tank body 12. A filter screen assembly 13 is arranged in the tank 100, and the filter screen assembly 13 is communicated with the upper tank 11 and the lower tank 12. In this way, reagent accessible inlet 111 gets into jar internal 100, and filter screen subassembly 13 can filter the bubble in the reagent in last jar of body 11, and liquid outlet 121 sets up in the stock solution and irritates the lower part simultaneously, because the bubble come-up, can effectively avoid the bubble to get into reaction tank 40.

The sample analyzer 200 further includes: a conduit 50, a three-way valve 60. One end of the pipe 50 is connected to the air port 141 of the reservoir tank 10, and three ports of the three-way valve 60 are connected to the other end of the pipe 50, the negative pressure source 31, and the positive pressure source 32, respectively. In other embodiments, the three-way valve 60 may be replaced by two-way valves, one connecting the line 50 to the negative pressure source 31, the other connecting the line 50 to the positive pressure source 32,

further, the sample analyzer 200 further includes: at least one quantitative pump 70 and a switch valve 80, wherein each quantitative pump 70 is arranged between the liquid storage tank 10 and the corresponding reaction tank 40, the switch valve 80 is connected between the quantitative pump 70 and the corresponding reaction tank 40, and the quantitative pump 70 is a liquid pump capable of quantitative determination, such as a diaphragm pump, a peristaltic pump, a syringe, and the like. The quantitative pump 70 is used to suck a quantitative amount of the reagent from the liquid storage tank 10 and transfer the reagent to the corresponding reaction well 40.

Optionally, the sample analyzer 200 further includes a switch valve 80 and a quantitative pump 70, the switch valve 80 is connected between the reaction cell 40 and the quantitative pump 70, and the switch valve 80 and the quantitative pump 70 are both disposed in the first space and located below the liquid level of the reaction cell 40. Since the on-off valve 80 and the fixed displacement pump 70 are located below the liquid level of the reaction cell 40, the interior of the pipe connecting the on-off valve 80 and the fixed displacement pump 70 for adding the reagent to the reaction cell 40 is always in a positive pressure state, and bubbles can be prevented from being generated due to ventilation of the pipe. Meanwhile, the on-off valve 80 and the fixed displacement pump 70 are disposed close to the reaction chamber 40, so that the length of the pipeline can be shortened, and the liquid in the pipeline can be completely refreshed after each measurement, thereby preventing bubbles from accumulating in the pipeline.

In this application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "connected" and "communicating" are used broadly and may be, for example, directly connected or indirectly connected through intervening media. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present application, it is to be understood that the terms "upper", "lower", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or unit must have a specific direction, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present application.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. A fluid reservoir, comprising: a tank body;

the tank body comprises an upper tank body and a lower tank body, wherein the peripheral wall of the upper tank body is provided with a liquid inlet, and the peripheral wall of the lower tank body is provided with a liquid outlet;

the internal portion of jar is equipped with a filter screen subassembly, the filter screen subassembly intercommunication go up the jar body with down the jar body.

2. The fluid reservoir of claim 1, wherein said screen assembly comprises:

the aperture range of the filter screen is 5-200 um;

the filter screen support is installed go up the jar body with between the lower jar of body, wherein the filter screen support is frame construction, the surface that the filter screen support has one side at least is the supporting plane, the supporting plane is used for supporting the filter screen.

3. The fluid reservoir of claim 2,

the filter screen assembly is horizontally or obliquely arranged inside the tank body.

4. The fluid reservoir of claim 2,

the filter screen is bonded or welded on the filter screen bracket;

the periphery wall of the filter screen support is bonded, screwed or welded on the inner wall of the tank body.

5. The fluid reservoir of claim 2, wherein said screen support includes a support frame and a reinforcing rib connected to said support frame.

6. The fluid reservoir of claim 1, further comprising: the tank cover is positioned at the upper part of the tank body and is connected with the upper tank body in a sealing way;

the tank cover is provided with an air port, and the air port is used for being connected with an external air pressure source.

7. The fluid reservoir of claim 6,

the opening direction of the liquid outlet is parallel to the opening direction of the air port, so that the liquid outlet is opposite to the air port.

8. A sample analyzer, comprising:

a fluid reservoir tank as defined in any one of claims 1 to 7;

the reagent pool is connected with the liquid inlet of the liquid storage tank and is used for storing reagents participating in sample treatment;

the liquid storage tank is selectively connected with the negative pressure source or the positive pressure source, the negative pressure source is used for establishing working negative pressure in the liquid storage tank, and the positive pressure source is used for establishing working positive pressure in the liquid storage tank;

and the at least one reaction tank is connected with the liquid outlet of the liquid storage tank and is used for uniformly mixing the reagent and the sample added into the reaction tank to form corresponding liquid to be detected.

9. The sample analyzer of claim 8, further comprising:

one end of the pipeline is connected with an air port of the liquid storage tank;

and three ports of the three-way valve are respectively connected with the other end of the pipeline, the negative pressure source and the positive pressure source.

10. The sample analyzer of claim 8, further comprising:

at least one quantitative pump and ooff valve, every quantitative pump sets up the liquid storage pot with correspond between the reaction tank, the ooff valve is connected quantitative pump with correspond between the reaction tank, the quantitative pump is used for following the liquid storage pot absorbs quantitative reagent and transfers to corresponding in the reaction tank.

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