Auxiliary sample liquid transfer device for erythrocyte sedimentation rate detection

Abstract

The utility model discloses an auxiliary sample liquid transfer device for erythrocyte sedimentation rate detection. Comprising a main machine body, a tube body inlet, a tube body operation cavity, a tube body carrying table, a loading table and a sample liquid transfer tube, wherein the tube body inlet and the tube body operation cavity are communicated with the main machine body; the tube body carrying table is arranged in the tube body operation cavity; the loading table is arranged below the front side of the main machine body and is used for placing a vacuum blood collection tube and a glass tube; the pumping driving unit acts on the sample liquid transfer pipe to generate directional negative pressure to realize sample liquid transfer, and the pipe body recycling unit is used for transferring and discarding the used sample liquid transfer pipe; by designing the flexible sample liquid transfer tube and integrating the pumping driving unit and the tube body recovery unit acting on the sample liquid transfer tube, accurate quantitative transfer of the sample liquid is realized, manual operation is replaced, the blood transfer working efficiency and quality are improved, and the sample liquid transfer tube is designed as a disposable consumable and can be automatically recovered after being used, so that the blood transfer efficiency is improved. And the use convenience and safety of the system are greatly improved.

Description

TECHNICAL FIELD

[0001] The embodiment of the utility model belongs to the erythrocyte sedimentation rate detection technical field, more particularly, relate to a kind of sample liquid auxiliary transfer device for erythrocyte sedimentation rate detection. BACKGROUND

[0002] In recent years, erythrocyte sedimentation rate (ESR) is a commonly used clinical test index. Blood sample is collected into a blood sedimentation tube containing an anticoagulant, mixed and placed vertically on the instrument sample holder. Under the action of gravity, red blood cells will gradually sink, leaving a transparent plasma at the top of the blood sedimentation tube. The instrument uses a pair of infrared transmitting and receiving tubes to move up and down to determine the interface between red blood cells and transparent plasma. The dynamic sedimentation change of red blood cells can be measured within a certain time. Specifically, in the actual operation process, the blood needs to be quantitatively transferred from the vacuum blood collection tube to the glass tube to be tested. This process requires the use of a disposable needle tube for extraction, injection, and manual observation to ensure a certain injection volume. Under the condition of large batch work, this operation process can be completely replaced to improve overall work efficiency.

[0003] To solve the above technical problems, Chinese utility model patent CN206343191U discloses a device for quickly and massively transferring liquid in a test tube, which is suitable for quickly transferring supernatant in a test tube in soil physicochemical analysis experiments. A device for quickly and massively transferring liquid in a test tube, comprising a fixed rack 1, a fixed clamp 2, a U-shaped glass tube 3, a multi-hole connecting disc 4, a hose interface 5, a plastic hose 6, a test tube 7, a test tube rack 8, a laboratory bench 9, an air suction ball 10, a switch 11, and a liquid collector 12. The U-shaped glass tube 3 is fixed on the fixed rack 1 by the fixed clamp 2. The left end of the U-shaped glass tube 3 is connected to the multi-hole connecting disc 4. Each plastic hose 6 is connected to a soft hose interface 5 at the bottom of the multi-hole connecting disc 4. The other end of the plastic hose 6 is inserted into the test tube 7. The test tube 7 is placed in the test tube rack 8, which is placed on the top of the laboratory bench 9. The right end of the U-shaped glass tube 3 is equipped with an air suction ball 10 and a switch 11. The liquid collector 12 is used to collect the liquid transferred from the test tube 7. The utility model has the characteristics of simple structure, time and labor saving, convenient use and low cost. Moreover, it basically does not disturb the bottom soil sample, thereby improving the accuracy of soil physicochemical experiment analysis.

[0004] The above patent technology realizes rapid transfer of sample liquid by setting a pipeline system, but has the following technical problems: (1) due to the blood transfer process, the intermediate transfer tool such as a syringe is a disposable consumable and cannot be inserted for use, and the above patent technology does not consider the problem of replacing the disposable pipeline, and cross infection is inevitable; (2) in the erythrocyte sedimentation rate detection operation process, the vacuum blood collection tube and the glass tube are transferred one by one, and the above scheme is multiple-to-one transfer, so it is not suitable for erythrocyte sedimentation rate detection operation; (3) the transfer process still needs to manually apply driving force for sample liquid transfer, so the automation level still has optimization space. Utility model content

[0005] In view of the above defects or improvement needs of the prior art, the utility model provides a sample liquid auxiliary transfer device for erythrocyte sedimentation rate detection. Through the design of flexible sample liquid transfer pipe and the integration of pumping driving unit and pipe body recovery unit acting on the sample liquid transfer pipe, not only the accurate quantitative transfer of sample liquid is realized, the manual operation is replaced, the blood transfer work efficiency and quality are improved, but also the sample liquid transfer pipe is designed as a disposable consumable and can be automatically recovered after use, greatly improving the convenience and safety of the system.

[0006] In order to achieve the above purpose, a sample liquid auxiliary transfer device for erythrocyte sedimentation rate detection, comprising:

[0007] Main body, pipe body loading port and pipe body operation cavity connected in the main body, pipe body loading platform arranged on the lower side of the front side of the main body for placing vacuum blood collection tubes and glass tubes, sample liquid transfer pipe as consumables, pumping driving unit acting on the sample liquid transfer pipe to generate directional negative pressure to realize sample liquid transfer, pipe body recovery unit for transferring and storing used sample liquid transfer pipe;

[0008] The sample liquid transfer pipe comprises a rubber pipe as a main structure, and a heavy pipe end arranged at both ends of the rubber pipe.

[0009] The sample liquid transfer pipe is put into the pipe body operation cavity through the pipe body loading port and slides to the pipe body loading platform, both ends of the sample liquid transfer pipe are exposed outside the device body due to gravity, and both ends are respectively put into the vacuum blood collection tube and the glass tube, directional negative pressure is generated by the pumping driving unit to transfer the sample liquid in the vacuum blood collection tube to the glass tube, and the used sample liquid transfer pipe is recovered by the pipe body recovery unit.

[0010] Preferably, the pumping driving unit comprises:

[0011] The annular groove is opened on the surface of the pipe body support, the push air cylinder is fixed vertically downward above the pipe body support, the intermediate connecting block is fixed on the output end of the push air cylinder, the pumping drive motor is horizontally arranged on the intermediate connecting block, the rotating hub barrel is coaxially fixedly connected with the output shaft of the pumping drive motor, and the twisted pipe roller is arranged on the side surface of the rotating hub barrel.

[0012] By controlling the push air cylinder to push forward, the rotating hub barrel drives the sample liquid transfer pipe to be pressed into the annular groove, and by controlling the pumping drive motor to rotate, under the continuous pressing action of the twisted pipe roller and the sample liquid transfer pipe, directional pumping negative pressure is generated in the pipe.

[0013] Preferably, the rotating hub barrel and the twisted pipe roller are rotationally connected.

[0014] Preferably, the pipe body recovery unit comprises:

[0015] The recovery drive motor is arranged in the pipe body operation cavity, the rotating wheel is coaxially fixedly connected with the recovery drive motor, the pipe body pull rod is arranged on the circumferential surface of the rotating wheel, and the rod end positioning groove is opened on the upper surface of the pipe body support.

[0016] By controlling the recovery drive motor to drive the rotating wheel to rotate, the end part of the pipe body pull rod passes through the rod end positioning groove, and the used sample liquid transfer pipe on the upper surface of the pipe body support is transferred to the pipe body recovery area.

[0017] Preferably, a pull hook is arranged at the front end of the pipe body pull rod.

[0018] Preferably, the loading table comprises a high-position loading table and a low-position loading table for placing vacuum blood collection tubes and glass tubes respectively.

[0019] The pipe body support is arranged to be offset relative to the pipe body inlet, so that the two heavy ends of the sample liquid transfer pipe drop to different heights, the self-suction effect of the communicating vessel is generated, and the heavy end above the glass tube or the low-position loading table is lower than the other heavy end.

[0020] Preferably, the visual sensor for monitoring and judging the alignment relationship between the actual liquid surface in the glass tube and the scale line of the glass tube is further included.

[0021] Overall, compared with the prior art, the above technical scheme conceived by the utility model can achieve the following beneficial effects:

[0022] (1) The utility model discloses a sample liquid auxiliary transfer device for erythrocyte sedimentation rate detection, through the design flexible sample liquid transfer pipe, and the integration acting pump drive unit and pipe body recovery unit of sample liquid transfer pipe, not only realized sample liquid accurate quantitative transfer, replaced manual operation, improved blood transfer work efficiency and quality, and sample liquid transfer pipe is designed as disposable consumable, and can be recovered automatically after use, greatly improved system convenience and safety.

[0023] (2) The utility model discloses a sample liquid auxiliary transfer device for erythrocyte sedimentation rate detection, through the pipe body loading platform is set to the pipe body inlet relative to the deflection, realized the two heavy pipe end of sample liquid transfer pipe falls and appears height difference, produced the self-suction effect of communicating vessel, can make sample liquid transfer pipe fill with sample liquid through pump drive unit, control the push air cylinder and go up, under the suction of communicating vessel of two heavy pipe end height difference, sample liquid is automatically extracted and moves, to reduce system energy consumption. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is cross section structure schematic drawing of pump drive unit of the utility model embodiment sample liquid auxiliary transfer device for erythrocyte sedimentation rate detection;

[0025] Figure 2 It is structure schematic drawing of pump drive unit of the utility model embodiment sample liquid auxiliary transfer device for erythrocyte sedimentation rate detection;

[0026] Figure 3 It is cross section structure schematic drawing of pipe body recovery unit of the utility model embodiment sample liquid auxiliary transfer device for erythrocyte sedimentation rate detection;

[0027] Figure 4 It is structure relationship schematic drawing of pipe body loading platform and sample liquid transfer pipe of the utility model embodiment sample liquid auxiliary transfer device for erythrocyte sedimentation rate detection;

[0028] In all drawings, same reference signs indicate same technical features, specifically: 1-main body, 101-pipe body inlet, 102-pipe body operation cavity, 110-pipe body loading platform, 2-loading platform, 201-low position loading platform, 202-high position loading platform, 3-sample liquid transfer pipe, 300-rubber tube, 301-heavy pipe end, 4-pump drive unit, 400-annular groove, 401-push air cylinder, 402-intermediate connecting block, 403-pump drive motor, 404-rotation hub cylinder, 405-twisted tube roller, 5-pipe body recovery unit, 500-rod end position slot, 501-recovery drive motor, 502-rotation wheel, 503-pipe body pull rod, 504-pull hook, 505-pipe body recovery area, 6-vacuum blood collection tube, 7-glass tube, 700-scale line, 8-vision sensor. DETAILED DESCRIPTION

[0029] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0033] like Figures 1-4 As shown in this embodiment of the invention, the sample transfer device for erythrocyte sedimentation rate detection includes:

[0034] The main body 1, the pipe body placing opening 101 and the pipe body operation cavity 102 arranged on the main body 1, the pipe body loading platform 110 arranged on the pipe body operation cavity 102, the loading platform 2 arranged on the lower front side of the main body 1 and used for placing the vacuum blood collection tube 6 and the glass tube 7, the sample liquid transfer tube 3 as a consumable, the pumping driving unit 4 acting on the sample liquid transfer tube 3 to generate directional negative pressure to realize sample liquid transfer, and the pipe body recycling unit 5 for recycling and discarding the used sample liquid transfer tube 3;

[0035] The sample liquid transfer tube 3 comprises a rubber tube 300 as a main structure and heavy tube ends 301 arranged at both ends of the rubber tube 300.

[0036] The sample liquid transfer tube 3 is placed into the pipe body operation cavity 102 through the pipe body placing opening 101 and slides to the pipe body loading platform 110, both ends of the sample liquid transfer tube 3 are exposed outside the device body due to gravity and are respectively placed into the vacuum blood collection tube 6 and the glass tube 7, sample liquid in the vacuum blood collection tube 6 is transferred to the glass tube 7 through the pumping driving unit 4 generating directional negative pressure, and the used sample liquid transfer tube 3 is recycled through the pipe body recycling unit 5.

[0037] As shown in Figures 2-4 In the embodiment of the utility model, the pumping driving unit 4 comprises:

[0038] The annular groove 400 is opened on the surface of the pipe body loading platform 110, the push-up air cylinder 401 is fixed vertically downward above the pipe body loading platform 110, the intermediate connecting block 402 is fixed to the output end of the push-up air cylinder 401, the pumping driving motor 403 is horizontally arranged on the intermediate connecting block 402, the rotating hub cylinder 404 is coaxially fixedly connected with the output shaft of the pumping driving motor 403, and the pipe twisting roller 405 is arranged on the side face of the rotating hub cylinder 404; the rotating hub cylinder 404 is located directly above the annular groove 400.

[0039] The sample liquid transfer tube 3 is pressed into the annular groove 400 by driving the rotating hub cylinder 404 through the control of the push-up air cylinder 401, and directional pumping negative pressure is generated in the tube by rotating the pumping driving motor 403 under the continuous pressing action of the pipe twisting roller 405 and the sample liquid transfer tube 3.

[0040] As shown in Figure 3 In the embodiment of the utility model, the rotating hub cylinder 404 and the pipe twisting roller 405 are rotationally connected.

[0041] As shown in Figure 1 and Figure 4 In the embodiment of the utility model, the pipe body recycling unit 5 comprises:

[0042] A recovery drive motor 501 is arranged in the tube operation cavity 102, a rotating wheel 502 is coaxially fixedly connected with the recovery drive motor 501, a tube pull rod 503 is arranged on the circumferential surface of the rotating wheel 502, and a rod end positioning groove 500 is arranged on the upper surface of the tube loading table 110; and a tube recovery area 505 is arranged at the back of the tube operation cavity 102;

[0043] The end of the tube pull rod 503 is driven to pass through the rod end positioning groove 500, so that the used sample liquid transfer tube 3 on the upper surface of the tube loading table 110 is transferred to the tube recovery area 505.

[0044] As shown in Figure 1 In the embodiment of the utility model, the front end of the tube pull rod 503 is provided with a pull hook 504.

[0045] As shown in Figure 1 And Figure 4 In the embodiment of the utility model, the loading table 2 comprises a high loading table 202 and a low loading table 201 which are respectively used for placing the vacuum blood collection tube 6 and the glass tube 7.

[0046] The tube loading table 110 is arranged to be offset relative to the tube loading port 101, so that the two heavy tube ends 301 of the sample liquid transfer tube 3 are arranged to be in a height difference, and the siphon self-suction effect is generated, and the heavy tube end 301 above the glass tube 7 or the low loading table is lower than the other heavy tube end 301.

[0047] As shown in Figure 1 In the embodiment of the utility model, the sample liquid auxiliary transfer device for erythrocyte sedimentation rate detection further comprises a visual sensor 8 which is used for monitoring and judging the alignment relationship between the actual liquid surface in the glass tube 7 and the scale line 700 of the glass tube 7.

[0048] The working principle of the utility model is as follows:

[0049] S100: first, the sample liquid transfer tube 3 is placed into the tube operation cavity 102 through the tube loading port 101, and then the sample liquid transfer tube 3 is slid down to the tube loading table 110, and the two ends of the sample liquid transfer tube 3 are exposed to the outside of the device body due to gravity, and the two heavy tube ends 301 are arranged to be in a height difference, so that the sample liquid transfer tube 3 has a siphon self-suction capacity;

[0050] S200: the vacuum blood collection tube 6 and the glass tube 7 are placed on the loading table 2, and the two heavy tube ends 301 are respectively placed into the vacuum blood collection tube 6 and the glass tube 7.

[0051] S300: by controlling the push cylinder 401, drive the rotating hub cylinder 404 to press the sample liquid transfer tube 3 into the annular groove 400, and by controlling the pumping drive motor 403 to rotate, under the continuous pressing action of the twisting tube roller 405 and the sample liquid transfer tube 3, the directional pumping negative pressure is generated in the tube; in addition to the above control method, after the pumping drive unit 4 fills the sample liquid transfer tube 3 with sample liquid, the push cylinder 401 is controlled to move upwards, under the communication suction effect generated by the height difference of the double tube end 301, the sample liquid is automatically and automatically pumped, so as to reduce the system energy consumption;

[0052] S400: by means of the visual sensor 8, the actual liquid level in the glass tube 7 is monitored and judged, and the scale line 700 of the glass tube 7 is aligned, and after the liquid level is consistent, the pumping drive unit 4 is reversely controlled, the liquid in the sample liquid transfer tube 3 is returned to the vacuum blood collection tube 6, and the sample liquid transfer is completed;

[0053] S500: by controlling the recovery drive motor 501 to drive the rotating wheel 502 to rotate, the pipe body pull rod 503 end part is passed from the rod end positioning groove 500, and the used sample liquid transfer tube 3 on the upper surface of the pipe body loading platform 110 is transferred to the pipe body recovery area 505.

[0054] In the embodiment of the utility model, through design flexible sample liquid transfer tube, and integrate the pumping drive unit and the pipe body recovery unit acting on the sample liquid transfer tube, not only realize the sample liquid accurate quantitative transfer, replace the manual operation, improve the blood transfer work efficiency and quality, moreover, the sample liquid transfer tube is designed as disposable consumables, and can be automatically recovered after use, greatly improve the system convenience and safety.

[0055] In addition, by setting the pipe body loading platform 110 to be offset relative to the pipe body inlet 101, the height difference of the double tube end 301 of the sample liquid transfer tube 3 is realized, the communication suction effect is generated, after the pumping drive unit 4 fills the sample liquid transfer tube 3 with sample liquid, the push cylinder 401 is controlled to move upwards, under the communication suction effect generated by the height difference of the double tube end 301, the sample liquid is automatically and automatically pumped, so as to reduce the system energy consumption.

[0056] The above is only the preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application. The above is only the preferred embodiment of the present application, it should be pointed out that, for ordinary skilled in the art, without departing from the technical principle of the present application, a number of improvements and modifications can be made, these improvements and modifications should be regarded as the protection scope of the present application.

Claims

1. A sample liquid assisted transfer device for erythrocyte sedimentation rate testing, characterized by, It includes: The main body (1), the pipe body loading port (101) and the pipe body operation cavity (102) which are arranged in the main body (1), the pipe body loading table (110) arranged in the pipe body operation cavity (102), the loading table (2) arranged in the lower front side of the main body (1) for placing the vacuum blood collection tube (6) and the glass tube (7), the sample liquid transfer tube (3) as a consumable, the pumping drive unit (4) acting on the sample liquid transfer tube (3) to generate directional negative pressure to realize sample liquid transfer, and the pipe body recycling unit (5) for transferring and storing the used sample liquid transfer tube (3); The sample liquid transfer tube (3) includes a rubber tube (300) as a main structure, and heavy pipe ends (301) arranged at both ends of the rubber tube (300); The sample liquid transfer tube (3) is placed into the pipe body operation cavity (102) through the pipe body loading port (101), and falls to the pipe body loading table (110), both ends of the sample liquid transfer tube (3) are exposed to the outside of the device body due to gravity, and are respectively placed into the vacuum blood collection tube (6) and the glass tube (7), directional negative pressure is generated by the pumping drive unit (4) to transfer the sample liquid in the vacuum blood collection tube (6) to the glass tube (7), and the used sample liquid transfer tube (3) is recycled by the pipe body recycling unit (5).

2. The sample fluid assisted transfer device for erythrocyte sedimentation rate test according to claim 1, characterized in that, The pumping drive unit (4) includes: An annular groove (400) is arranged on the surface of the pipe body loading table (110), a vertical downward fixed top push air cylinder (401) is arranged above the pipe body loading table (110), an intermediate connecting block (402) is fixed to the output end of the top push air cylinder (401), a pumping drive motor (403) is horizontally arranged on the intermediate connecting block (402), a rotating hub cylinder (404) is coaxially fixedly connected with the output shaft of the pumping drive motor (403), and a twisted tube roller (405) is arranged on the side surface of the rotating hub cylinder (404); the rotating hub cylinder (404) is located directly above the annular groove (400); By controlling the forward pushing of the top push air cylinder (401), the rotating hub cylinder (404) drives the sample liquid transfer tube (3) to be pressed into the annular groove (400), and by controlling the rotation of the pumping drive motor (403), directional pumping negative pressure is generated in the tube under the continuous pressing action of the twisted tube roller (405) and the sample liquid transfer tube (3).

3. The sample fluid assisted transfer device for erythrocyte sedimentation rate testing according to claim 2, wherein, The rotating hub cylinder (404) and the twisted tube roller (405) are rotationally connected.

4. The sample fluid assisted transfer device for erythrocyte sedimentation rate testing according to claim 1, wherein, The pipe body recycling unit (5) includes: A recycling drive motor (501) is arranged in the pipe body operation cavity (102), a rotating wheel (502) is coaxially fixedly connected with the recycling drive motor (501), a pipe body pull rod (503) is arranged on the circumferential surface of the rotating wheel (502), a rod end positioning groove (500) is arranged on the upper surface of the pipe body loading table (110), and a pipe body recycling area (505) is arranged at the back of the pipe body operation cavity (102); By controlling the rotating wheel (502) to rotate driven by the recycling drive motor (501), the end of the pipe body pull rod (503) passes through the rod end positioning groove (500), and the used sample liquid transfer tube (3) on the upper surface of the pipe body loading table (110) is transferred to the pipe body recycling area (505).

5. The sample fluid assisted transfer device for erythrocyte sedimentation rate testing according to claim 4, wherein, The pipe body pull rod (503) is provided with a pull hook (504) at the front end.

6. The sample fluid assisted transfer device for detecting erythrocyte sedimentation rate according to claim 1, wherein The loading platform (2) comprises a high loading platform (202) and a low loading platform (201) for placing vacuum blood collection tubes (6) and glass tubes (7) respectively. The tube loading platform (110) is arranged to be offset relative to the tube loading port (101), so that the two heavy ends (301) of the sample liquid transfer tube (3) are lowered to have a height difference, and a self-suction effect of a communicating vessel is generated, and the heavy end (301) above the glass tube (7) or the low loading platform is lower than the other heavy end (301).

7. The sample fluid assisted transfer device for detecting erythrocyte sedimentation rate according to claim 1, wherein A visual sensor (8) for monitoring and judging the alignment relationship between the actual liquid level in the glass tube (7) and the scale line (700) of the glass tube (7) is further included.

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