CN217332497U - Get liquid structure and immunoassay appearance - Google Patents

Abstract

The utility model belongs to the technical field of medical treatment check out test set, a get liquid structure and immunoassay appearance is disclosed. The liquid taking structure comprises a main frame body, a liquid transferring device and a test tube rack device. The liquid transfer device comprises a driving mechanism, a linkage piece and a puncture needle, wherein the driving mechanism is arranged on the main frame body, and the linkage piece and the puncture needle are arranged at the output end of the driving mechanism. The test-tube rack device includes test-tube rack subassembly and locating component, and the test tube is placed on the test-tube rack subassembly, and the test-tube rack subassembly that will place the test tube is together pushed into immunoassay appearance, and the test-tube rack subassembly is located the lower part of the body frame body, and actuating mechanism at first drives the linkage and removes, and then the linkage drives locating component and removes in order to fix a position the test-tube rack subassembly, then, actuating mechanism drives the pjncture needle again and removes so that the pjncture needle inserts in the test tube. The liquid taking structure moves through the linkage piece and then drives the positioning assembly to move so as to position the test tube rack assembly, so that the test tube rack assembly can be fixed when the puncture needle moves downwards.

Description

Get liquid structure and immunoassay appearance

Technical Field

The utility model relates to a medical treatment check out test set technical field especially relates to a get liquid structure and immunoassay appearance.

Background

The immunoassay analyzer is an apparatus for immunological quantitative analysis of a body fluid sample of a patient, can detect a plurality of diseases and symptoms, has the advantages of high sensitivity, wide linear range, simple apparatus setting, convenient operation, high analysis speed, high detection automation degree and the like, greatly improves the efficiency of immunoassay, eliminates artificial subjective errors, and is widely applied to the fields of modern clinical immunoassay diagnosis and life science research at present.

Among the current immunoassay appearance, the test-tube rack is used for the bearing test tube, and the manual work is during the test-tube rack that will put the test tube pushes into immunoassay appearance, then actuating mechanism drive pjncture needle moves down and inserts in the test tube. However, in the actual use process, due to manual misoperation, when the puncture needle is driven by the driving mechanism to move downwards, the hand of a person touches the test tube rack to cause the test tube rack to move, so that the position of the test tube changes, the puncture needle cannot be accurately inserted due to the position change when being inserted into the test tube, and the puncture needle is damaged under the condition.

Therefore, a liquid taking structure and an immunoassay analyzer are needed to solve the problem that the position of the test tube rack is changed due to manual misoperation in the downward moving process of the puncture needle.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a get liquid structure can prevent that the test-tube rack from taking place to remove when the puncture is punctured to the test tube.

Another object of the utility model is to provide an immunoassay appearance adopts above-mentioned liquid structure of getting to effectively protect the pjncture needle to take place to damage.

To achieve the purpose, the utility model adopts the following technical proposal:

a tapping structure, comprising:

a main frame body;

the liquid transfer device comprises a driving mechanism, a linkage piece and a puncture needle, wherein the driving mechanism is arranged on the main frame body, and the linkage piece and the puncture needle are arranged at the output end of the driving mechanism;

the test tube rack device comprises a test tube rack assembly and a positioning assembly, a test tube is placed on the test tube rack assembly, the test tube rack assembly can move to the lower part of the main rack body, the driving mechanism can drive the linkage piece and the puncture needle to move horizontally simultaneously, when the puncture needle moves horizontally to the position right above the test tube, the linkage piece can drive the positioning assembly to be connected with the test tube rack assembly so as to limit the movement of the test tube rack assembly.

Preferably, one of the test tube frame assembly and the positioning assembly is provided with a positioning part, and the other is provided with a positioning rod, wherein the positioning part is provided with a positioning hole, and the positioning rod can be inserted into the positioning hole.

Preferably, the test tube rack assembly is provided with the positioning portion, the positioning assembly is provided with the positioning rod, the positioning assembly further comprises a fixing seat, a pressing plate and an elastic piece, the fixing seat is fixedly arranged on the main frame body, the pressing plate is movably arranged on one side of the fixing seat, the elastic piece is located between the pressing plate and the fixing seat, one end of the positioning rod is fixedly connected with the pressing plate, the other end of the positioning rod penetrates through a first through hole in the fixing seat and is selectively connected with the positioning hole in the test tube rack assembly in an inserting mode, and the linkage piece can drive the pressing plate to drive the positioning rod to move and be connected with the positioning hole in the positioning hole or separated from the positioning hole.

Preferably, the positioning assembly further comprises a guide shaft, one end of the guide shaft is fixedly connected with the pressing plate, and the other end of the guide shaft penetrates through the second through hole in the fixed seat, so that the guide shaft is slidably connected with the fixed seat.

Preferably, the pressing plate comprises a horizontal part and an inclined part, and the linkage piece can move on the horizontal part and the inclined part to drive the pressing plate to drive the positioning rod to move.

Preferably, a limiting boss is arranged on the positioning rod, the size of the limiting boss is larger than that of the first through hole, and the limiting boss is located on one side, away from the pressing plate, of the fixing seat.

Preferably, the linkage is a pinch roller.

Preferably, the driving mechanism comprises a transverse driving assembly and a vertical driving assembly, the transverse driving assembly is arranged on the main frame body, the vertical driving assembly and the linkage piece are both arranged at the output end of the transverse driving assembly, and the puncture needle is arranged at the output end of the vertical driving assembly.

Preferably, the liquid taking structure further comprises a detection sensor, and the detection sensor is used for detecting whether the test tube is located at the liquid taking position.

An immunoassay analyzer comprising a fluid collection structure as in any of the above embodiments.

The utility model has the advantages that:

the utility model provides a pair of get liquid structure, including the body frame body, move liquid device and test-tube rack device. The liquid transfer device comprises a driving mechanism, a linkage piece and a puncture needle, wherein the driving mechanism is arranged on the main frame body, and the linkage piece and the puncture needle are arranged at the output end of the driving mechanism. The test-tube rack device includes test-tube rack subassembly and locating component, and the test tube is placed on the test-tube rack subassembly, can together push into immunoassay appearance with the test-tube rack subassembly of placing the test tube through artificially promoting the test-tube rack subassembly, and the test-tube rack subassembly is located the lower part of the body frame body, and actuating mechanism at first drives the linkage and removes, and then the linkage drives locating component and removes in order to fix a position the test-tube rack subassembly, then, actuating mechanism drives the pjncture needle again and removes so that the pjncture needle inserts in the test tube. This get liquid structure and pass through actuating mechanism and drive the linkage and remove and then drive locating component and remove in order to fix a position the test-tube rack subassembly to make the test-tube rack subassembly move down at the pjncture needle and can fix when inserting the test tube, even the user maloperation touches the test-tube rack subassembly and can not lead to the test-tube rack subassembly to remove yet, can just insert the test tube to guaranteeing the pjncture needle, effectively guaranteed that the pjncture needle can not damage.

The utility model provides a pair of immunoassay appearance gets the liquid structure through the aforesaid, can effectively guarantee that the pjncture needle does not take place to damage, has improved detection efficiency.

Drawings

Fig. 1 is a schematic front view of a liquid extraction structure according to an embodiment of the present invention;

fig. 2 is a schematic back view of a liquid-extracting structure according to an embodiment of the present invention;

FIG. 3 is an enlarged view of A in FIG. 2;

fig. 4 is a schematic structural diagram of a pressing plate according to an embodiment of the present invention.

In the figure:

1-a pipetting device; 11-a drive mechanism; 111-a transverse drive assembly; 112-a vertical drive assembly; 12-a linkage; 13-puncture needle;

2-a test tube rack device; 21-a cuvette holder assembly; 211-test tube rack base; 2111-locating section; 2111 a-alignment holes; 212-test tube rack; 213-front cover of test tube rack; 22-a positioning assembly; 221-positioning rod; 2211-limit boss; 222-a fixed seat; 223-pressing plate; 2231-a horizontal portion; 2232-an inclined portion; 224-a resilient member; 225-a guide shaft; 2251-limiting plate; 226-a slide;

100-test tube.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts throughout, or parts having the same or similar functions. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise specifically stated or limited, the terms "connected," "connected," and "fixed" are to be understood broadly, and may include, for example, a fixed connection, a detachable connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediary, a connection between two elements, or an interaction between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include both the first and second features being in direct contact, and may also include the first and second features being in contact, not in direct contact, but with another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

An immunoassay analyzer is an apparatus for performing immunological quantitative analysis on a body fluid sample of a patient. When the device is used, the test tube rack needs to be manually pushed into the immunoassay analyzer, and then the driving mechanism drives the puncture needle to move downwards to be inserted into a test tube on the test tube rack. However, when in actual use, the pjncture needle is moving the in-process down, often because the test-tube rack can be touched in the human maloperation, leads to the position of test-tube rack to take place to remove, then leads to the pjncture needle can not align with the test tube, and then leads to the pjncture needle to move down the in-process because test tube position deviation and damage with other positions butts of test tube.

The embodiment of the utility model provides an immunoassay appearance can guarantee that pjncture needle 13 is moving the in-process down, even receive the human maloperation and touch test-tube rack subassembly 21, test-tube rack subassembly 21 can not take place to remove yet, has effectively guaranteed that pjncture needle 13 can correctly insert in the test tube 100.

Specifically, the immunoassay analyzer includes a liquid extraction structure. The liquid-taking structure is described in detail below with reference to fig. 1.

The liquid taking structure includes a main frame body (not shown), a liquid transfer device 1, and a test tube rack device 2. Wherein, the main frame body is the carrier of the liquid-transfering device 1, and the liquid-transfering device 1 is arranged on the main frame body. The liquid-transfering device 1 includes a driving mechanism 11, a linkage 12 and a puncture needle 13, the driving mechanism 11 is arranged on the main frame body, the linkage 12 and the puncture needle 13 are arranged at the output end of the driving mechanism 11, the driving mechanism 11 can drive the linkage 12 and the puncture needle 13 to move along the horizontal direction firstly, and then the puncture needle 13 is driven to move along the vertical direction. The test tube rack device 2 comprises a test tube rack assembly 21 and a positioning assembly 22, wherein the test tube rack assembly 21 is used for placing the test tube 100, and when in use, a user pulls the test tube rack assembly 21 out of the immunoassay analyzer, then places the test tube 100 on the test tube rack assembly 21, pushes the test tube 100 into the immunoassay analyzer and is positioned at the lower part of the main rack body; when the driving mechanism 11 drives the linkage 12 and the puncture needle 13 to move in the horizontal direction, the linkage 12 can drive the positioning assembly 22 to move to position the test tube rack assembly 21, while the puncture needle 13 can be aligned with the test tube 100 when moving in the horizontal direction, and the driving mechanism 11 drives the puncture needle 13 to move downwards to insert the puncture needle 13 into the test tube 100 to suck the sample liquid.

This get liquid structure and pass through actuating mechanism 11 and drive linkage 12 and pjncture needle 13 simultaneously and remove along the horizontal direction, linkage 12 can drive locating component 22 when horizontal migration and remove in order to fix a position test tube rack subassembly 21, so that actuating mechanism 11 drives pjncture needle 13 again and can guarantee immovably when moving down to insert in test tube 100 along vertical direction, even user's maloperation touches test tube rack subassembly 21 and can not lead to test tube rack subassembly 21 to remove yet, in order to guarantee that pjncture needle 13 can just insert test tube 100, effectively guaranteed that pjncture needle 13 can not damage.

In particular, with continued reference to fig. 1, drive mechanism 11 includes a lateral drive assembly 111 and a vertical drive assembly 112. The transverse driving assembly 111 is arranged on the main frame body, the vertical driving assembly 112 is arranged at the output end of the transverse driving assembly 111, the linkage piece 12 is arranged on the vertical driving assembly 112, and the transverse driving assembly 111 can drive the vertical driving assembly 112 and the linkage piece 12 to move along the horizontal direction simultaneously; the puncture needle 13 is arranged at the output end of the vertical driving assembly 112, when the horizontal driving assembly 111 drives the vertical driving assembly 112 to move in place along the horizontal direction, namely the puncture needle 13 is right opposite to the test tube 100, and the vertical driving assembly 112 drives the puncture needle 13 to move downwards along the vertical direction to be inserted into the test tube 100 so as to suck sample liquid.

Specifically, test tube rack assembly 21 includes test tube rack base 211 and test tube rack 212, and test tube rack 212 is fixed to be set up on test tube rack base 211, and test tube rack base 211 can slide in immunoassay appearance to it is more smooth and easy in immunoassay appearance to make test tube rack assembly 21 wholly push into. The test tube 100 is placed on the test tube rack 212, and the test tube 100 on the test tube rack 212 is driven by the test tube rack base 211 to be pushed into the immunoassay analyzer together. Exemplarily, the test-tube rack base 211 is arranged on the immunoassay analyzer through a guide rail slider structure, the slider is fixedly arranged on one side of the test-tube rack base 211 deviating from the test-tube rack 212 through arranging the guide rail in the immunoassay analyzer, and the slider is connected with the guide rail in a sliding manner, so that the test-tube rack base 211 can slide more conveniently, and the structure is simple and practical.

Further, be provided with the installation hole site of placing test tube 100 on the test-tube rack 212, test tube 100 places in the installation hole site, and the user when placing test tube 100 only need with test tube 100 insert in the installation hole site can, it is more convenient to operate.

In order to facilitate the pulling or pushing of the test tube rack assembly 21, with reference to fig. 1, the test tube rack assembly 21 further includes a front test tube rack cover 213, the front test tube rack cover 213 is fixedly connected to the test tube rack 212, and the user can pull or push the test tube rack 212 and the test tube rack base 211 together into the immunoassay analyzer by pulling or pushing the front test tube rack cover 213.

As shown in fig. 2-4, the positioning assembly 22 will now be described in conjunction with fig. 2-4.

Specifically, as shown in fig. 2, in order to fix the test tube rack assembly 21 by the positioning assembly 22, a positioning portion 2111 is provided on the test tube rack base 211, and the linkage 12 drives the positioning assembly 22 to move so as to fixedly connect the positioning assembly 22 with the positioning portion 2111 to position the test tube rack base 211 and then fix the test tube rack 212.

Further, the positioning assembly 22 includes a positioning rod 221, the positioning portion 2111 is provided with a positioning hole 2111a, and the linkage 12 can drive the positioning rod 221 to be inserted into the positioning hole 2111a to fix the rack base 211.

In other embodiments, the positioning portion 2111 may be disposed on the positioning assembly 22, and the positioning rod 221 may be disposed on the test tube rack assembly 21.

With continued reference to fig. 3-4, further details of the positioning assembly 22 will be described below in conjunction with fig. 3-4.

Specifically, as shown in fig. 3, the positioning assembly 22 further includes a fixing base 222, a pressing plate 223 and an elastic member 224. The fixing base 222 is fixedly disposed on the main frame, one end of the positioning rod 221 is fixedly connected to the pressing plate 223, the positioning rod 221 is slidably disposed in the first through hole of the fixing base 222, and the elastic member 224 is disposed between the fixing base 222 and the pressing plate 223. When the transverse driving assembly 111 drives the link 12 to move along the horizontal direction, the link 12 can press the pressing plate 223, so that the pressing plate 223 moves towards the fixing seat 222, and further drives the positioning rod 221 to move towards the positioning hole 2111a, so that the other end of the positioning rod 221 is inserted into the positioning hole 2111a or the link 12 returns to separate the positioning rod 221 from the positioning hole 2111 a.

In this embodiment, the elastic member 224 is a compression spring, the compression spring is sleeved in the positioning rod 221 and located between the fixing seat 222 and the pressing plate 223, one end of the elastic member 224 abuts against the pressing plate 223, and the other end of the elastic member abuts against the fixing seat 222, so that the elastic member 224 is more convenient to mount, and the compression spring is a common elastic member 224, which is relatively easy to purchase and has a lower cost.

As shown in fig. 4, in order to make the structure more reasonable, the pressing plate 223 includes a horizontal portion 2231 and an inclined portion 2232, and when the lateral driving unit 111 drives the puncture needle 13 and the link 12 to move toward the test tube 100, the link 12 moves from the inclined portion 2232 to the horizontal portion 2231 to move the pressing plate 223 downward; when the lateral driving unit 111 drives the puncture needle 13 and the link 12 to return, the link 12 moves from the horizontal portion 2231 to the inclined portion 2232, and the inclined portion 2232 is lower than the horizontal portion 2231 due to the downward inclination of the inclined portion 2232, so that when the link 12 is located on the inclined portion 2232, the pressing plate 223 can move upward under the force of the elastic member 224, and the positioning rod 221 is moved upward.

Optionally, the linkage 12 is a pressing wheel, and the pressing wheel can roll on the pressing plate 223, so that the structure is more reasonable. Preferably, the pinch roller is a cam follower, so that the whole structure is simple and the cost is reduced. In other embodiments, the linkage 12 may also press the pressing plate 223 for other link structures, and the link structure is not described herein again.

Since the alignment rod 221 is a circular rod, the alignment rod 221 can rotate on the fixing base 222 around the axis, and the pressure plate 223 may rotate around the axis of the alignment rod 221, which results in an unstable structure. In order to solve the problem of rotation of the positioning rod 221, with reference to fig. 3, the positioning assembly 22 further includes a guide shaft 225, one end of the guide shaft 225 is fixedly connected to the pressing plate 223, the other end of the guide shaft 225 is slidably disposed in the second through hole of the fixing base 222, the positioning rod 221 and the guide shaft 225 simultaneously slide in the fixing base 222, and the guide shaft 225 can limit the rotation of the positioning rod 221, thereby effectively preventing the pressing plate 223 from rotating, and making the structure more stable.

It can be understood that there are two elastic members 224, one elastic member 224 is sleeved on the positioning rod 221, the other elastic member 224 is sleeved on the guiding shaft 225, and the two elastic members 224 are simultaneously disposed between the pressing plate 223 and the fixing base 222, so that the pressing plate 223 can be more quickly returned.

In order to prevent the guide shaft 225 and the positioning rod 221 from coming off the fixing seat 222 when the pressing plate 223 drives the positioning rod 221 to return, referring to fig. 3, the positioning rod 221 is provided with a limit boss 2211, and the size of the limit boss 2211 is larger than that of the first through hole. If an immunoassay analyzer fault occurs, so that the linkage member 12 cannot abut against the pressing plate 223, when the pressing plate 223 drives the positioning rod 221 to move upwards under the acting force of the elastic member 224, the limiting boss 2211 can abut against one side of the fixing seat 222 departing from the pressing plate 223, so as to prevent the guide shaft 225 and the positioning rod 221 from falling off the fixing seat 222. Further, the other end that guiding shaft 225 deviates from clamp plate 223 is provided with limiting plate 2251, and limiting plate 2251 and limiting boss 2211 deviate from one side butt of clamp plate 223 with fixing base 222 simultaneously, make overall structure atress more even.

With reference to fig. 3, if the positioning rod 221 and the guiding shaft 225 directly rub against the fixing base 222 all the time, wear of the parts may be caused to accelerate damage of the parts, specifically, the positioning assembly 22 further includes two sliding members 226, the sliding members 226 are fixedly disposed on the fixing base 222, the positioning rod 221 and the guiding shaft 225 are respectively slidably disposed in the two sliding members 226, and the sliding members 226 have wear-resistant characteristics and can make sliding smoother to reduce wear of the parts.

In this embodiment, the sliding member 226 is a linear bearing, which is a linear motion system with high precision and smooth motion, and the linear bearing is a conventional standard member and is convenient to purchase.

In order to accurately judge whether the test tube 100 is in place, the liquid taking structure further comprises a detection sensor, and after the user pushes the test tube rack assembly 21 with the test tube 100 in place into the immunoassay analyzer, the detection sensor can detect whether the test tube 100 reaches the liquid taking position so as to give a signal of the immunoassay analyzer. It is understood that if the detection sensor detects that the test tube 100 reaches the liquid taking position, and the immunoassay analyzer receives a signal that the test tube 100 reaches the liquid taking position, the puncture needle 13 is moved to above the test tube 100 and inserted into the test tube 100 downward by the driving of the driving mechanism 11, and the sample liquid is aspirated.

In this embodiment, the detection sensor is an opposed photoelectric sensor, and the working principle of the opposed photoelectric sensor is as follows: when an object cuts off light, a signal is output, and when the test tube 100 is in place, the light is blocked, and a signal that the test tube 100 is in place is output.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A fluid access structure, comprising:

a main frame body;

the liquid transfer device (1) comprises a driving mechanism (11), a linkage piece (12) and a puncture needle (13), wherein the driving mechanism (11) is arranged on the main frame body, and the linkage piece (12) and the puncture needle (13) are arranged at the output end of the driving mechanism (11);

test-tube rack device (2), including test-tube rack subassembly (21) and locating component (22), test tube (100) place in on test-tube rack subassembly (21), test-tube rack subassembly (21) can move to body frame body lower part, actuating mechanism (11) can drive link (12) with pjncture needle (13) horizontal migration simultaneously, work as pjncture needle (13) horizontal migration extremely when test tube (100) are directly over, link (12) can drive locating component (22) with test-tube rack subassembly (21) is connected, in order to restrict test-tube rack subassembly (21) removes.

2. The structure of claim 1, wherein one of the test tube rack assembly (21) and the positioning assembly (22) is provided with a positioning portion (2111), the other is provided with a positioning rod (221), the positioning portion (2111) is provided with a positioning hole (2111a), and the positioning rod (221) can be inserted into the positioning hole (2111 a).

3. The liquid taking structure according to claim 2, wherein the positioning portion (2111) is disposed on the test tube rack assembly (21), the positioning assembly (22) is provided with the positioning rod (221), the positioning assembly (22) further includes a fixing seat (222), a pressing plate (223) and an elastic member (224), the fixing seat (222) is fixedly disposed on the main rack body, the pressing plate (223) is movably disposed on one side of the fixing seat (222), the elastic member (224) is disposed between the pressing plate (223) and the fixing seat (222), one end of the positioning rod (221) is fixedly connected with the pressing plate (223), the other end of the positioning rod passes through a first through hole on the fixing seat (222) and is selectively inserted into the positioning hole (2111a) on the test tube rack assembly (21), and the linkage member (12) can drive the pressing plate (223) to drive the positioning rod (221) to move and be inserted into the positioning hole (2111a) Or separated from the positioning hole (2111 a).

4. The liquid taking structure according to claim 3, wherein the positioning assembly (22) further comprises a guide shaft (225), one end of the guide shaft (225) is fixedly connected with the pressing plate (223), and the other end of the guide shaft passes through a second through hole on the fixed seat (222), so that the guide shaft (225) is slidably connected with the fixed seat (222).

5. The liquid taking structure according to claim 3, wherein the pressing plate (223) comprises a horizontal part (2231) and an inclined part (2232), and the linkage (12) can move on the horizontal part (2231) and the inclined part (2232) to drive the pressing plate (223) to move the positioning rod (221).

6. The liquid taking structure of claim 3, wherein a limiting boss (2211) is arranged on the positioning rod (221), the size of the limiting boss (2211) is larger than that of the first through hole, and the limiting boss (2211) is located on one side of the fixed seat (222) away from the pressing plate (223).

7. Liquid extraction structure according to claim 1, characterized in that the linkage (12) is a press wheel.

8. The liquid taking structure according to claim 1, wherein the driving mechanism (11) comprises a transverse driving assembly (111) and a vertical driving assembly (112), the transverse driving assembly (111) is arranged on the main frame body, the vertical driving assembly (112) and the linkage piece (12) are arranged at the output end of the transverse driving assembly (111), and the puncture needle (13) is arranged at the output end of the vertical driving assembly (112).

9. The tapping structure according to claim 1, further comprising a detection sensor for detecting whether the test tube (100) is located at a tapping position.

10. An immunoassay analyzer comprising a fluid-extracting structure as set forth in any one of claims 1 to 9.

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