An automatic sample adding device for in-vitro diagnostic analyzers

Abstract

The application discloses an automatic sample adding device of an in-vitro diagnostic analyzer, which comprises an X-direction driving part, a Y-direction driving part, a sample adding part and a puncture and card returning part, the Y-direction driving part is installed on the X-direction driving part and can move back and forth along the X-direction, the sample adding part and the puncture and card returning part are connected with the Y-direction driving part and can move back and forth along the Z-direction relative to the Y-direction driving part, the sample adding part and the puncture and card returning part can move back and forth along the X-direction with the Y-direction driving part, and the sample adding part and the puncture and card returning part can move back and forth along the Y-direction relative to the Y-direction driving part. The scheme can realize full-automatic sample adding and detection. After the user places reagent cards and detection solutions in the designated area, the sample adding device directly outputs the results after automatic operation, avoids errors caused by manual operation, is efficient and reliable, the three-dimensional moving structure design reduces the volume, greatly reduces the requirements on the installation and use environment, and also reduces the cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of in-vitro diagnostic analyzers, and particularly relates to an automatic sample adding device of an in-vitro diagnostic analyzer. BACKGROUND

[0002] At present, there are many in-vitro diagnostic detection instruments on the market, which vary in size and function. In the process of adding samples, some of them are small in structure but need to be manually operated, and the detection time is relatively long. Some instruments that can realize full-automatic detection are all large in structure, occupy space, and are high in cost, which brings a burden of manpower or cost to hospitals and clinics using these devices.

[0003] In summary, the shortcomings of the prior art are as follows:

[0004] (1) Low efficiency, large human and time cost. At present, small in-vitro diagnostic instruments on the market can only detect one reagent, which consumes more manpower and resources.

[0005] (2) Low automation. Small in-vitro diagnostic instruments currently have low automation and need frequent human intervention.

[0006] (3) Large size. Instruments that can realize multi-reagent and high automation are large in size, occupy space, and have high requirements for the transportation of the instruments. SUMMARY

[0007] The present application aims to overcome the problems in the background art and provides an automatic sample adding device of an in-vitro diagnostic analyzer, which realizes full-automatic sample adding and detection.

[0008] The purpose of the present application is mainly achieved by the following technical solutions:

[0009] The application discloses an automatic sample adding device of an in-vitro diagnostic analyzer, which comprises an X-direction driving part, a Y-direction driving part, a sample adding part and a puncture and card returning part, the Y-direction driving part is installed on the X-direction driving part and can move back and forth along the X direction, the sample adding part and the puncture and card returning part are connected with the Y-direction driving part and can move back and forth along the Z direction relative to the Y-direction driving part, the sample adding part and the puncture and card returning part can move back and forth along the X direction with the Y-direction driving part, and the sample adding part and the puncture and card returning part can move back and forth along the Y direction relative to the Y-direction driving part.

[0010] Further, the X-direction driving part comprises a support frame one, a driving mechanism one is arranged on the support frame one, the driving mechanism one is connected with a transmission mechanism one, the transmission mechanism one is installed on the support frame one, the Y-direction driving part is installed on the support frame one and connected with the transmission mechanism one, and can move back and forth along the X direction with the transmission mechanism one. A guide rail one is arranged on the support frame one and fixed on the support frame one, the Y-direction driving part is connected with the guide rail one and can move along the guide rail one. Through the structure arranged in this way, the support and movement guiding of the X-direction driving part are realized, so that the X-direction movement is in place and stable.

[0011] Further, the Y-direction driving part comprises a Y-direction installation beam, the Y-direction installation beam is connected with the guide rail one and can move along the guide rail one, a driving mechanism two is arranged on the Y-direction installation beam, the driving mechanism two is connected with a transmission mechanism two, the transmission mechanism two is installed on the Y-direction installation beam, the sample adding part and the puncture and card returning part are installed on the Y-direction installation beam and connected with the transmission mechanism two, and can move back and forth along the Y direction with the transmission mechanism two. A guide rail two is arranged on the Y-direction installation beam and fixed on the Y-direction installation beam, the sample adding part and the puncture and card returning part are connected with the guide rail two and can move along the guide rail two. Through the structure arranged in this way, the support and movement guiding of the Y-direction driving part are realized, so that the Y-direction movement of the Y-direction driving part is in place and stable.

[0012] Further, the sample adding part comprises a sample adding arm, the puncture card removing part is installed on the sample adding arm and can move back and forth in the Z direction relative to the sample adding arm, the sample adding arm is installed on the Y direction installation beam and is connected with the transmission mechanism two and the guide rail two and can move back and forth in the Y direction along with the transmission mechanism two and the guide rail two. The sample adding arm is provided with a driving mechanism three and a gun head installation block, the gun head installation block is connected with the driving mechanism three and can move back and forth in the Z direction under the action of the driving mechanism three, and the gun head installation block is installed with a gun head. The sample adding arm is provided with a guide rail three and a guide column, and the gun head installation block is connected with the guide rail three and the guide column and can move along the guide rail three and the guide column. Through the structure arranged in this way, the support and movement guidance of the sample adding part are realized, so that the Z direction movement of the sample adding part is in place and stable.

[0013] Further, the puncture card removing part comprises a driving mechanism four and a puncture head installation block, both of which are installed on the sample adding arm, the sample adding arm is provided with a transmission mechanism three, and the transmission mechanism three is connected with the driving mechanism four and the puncture head installation block at the same time, the puncture head installation block can move back and forth in the Z direction along with the transmission mechanism three, and the puncture head installation block is installed with a puncture head. The sample adding arm is provided with a guide rail four, and the puncture head installation block is connected with the guide rail four and can move along the guide rail four. Through the structure arranged in this way, the support and movement guidance of the puncture card removing part are realized, so that the Z direction movement of the puncture card removing part is in place and stable.

[0014] In summary, the present application has the following beneficial effects compared with the prior art:

[0015] (1) The present application can automatically add samples, transport reagents and solutions, and remove waste cards.

[0016] (2) The present application can automatically install and remove disposable suction heads.

[0017] (3) The present application automatically punctures the protective film layer of the reagent card.

[0018] (4) The present application is matched with an integrated reagent card, a disposable suction head and other components, can automatically correct the position of the reagent card, automatically identify the sample and reagent card information and record them into the system.

[0019] (5) The present application can automatically remove waste card strips. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings described herein are used to provide further understanding of the embodiments of the present application, constitute a part of the present application and do not constitute a limitation on the embodiments of the present application. In the drawings:

[0021] Fig. 1 It is a structural schematic diagram of the present application.

[0022] Fig. 2 It is another direction schematic diagram of the present application.

[0023] Fig. 3 The motion direction of the scheme is shown in the figure.

[0024] The names corresponding to the reference signs in the drawings are as follows:

[0025] 1-sample arm; 2-puncture head; 3-reagent card recovery push rod; 4-puncture synchronous belt; 5-puncture driven wheel; 6-puncture synchronous belt mounting block; 7-guide block one; 8-guide block two; 9-guide block three; 10-puncture reset baffle; 11-puncture driving wheel; 12-support column one; 13-puncture synchronous belt drag block; 14-puncture reset optical coupler; 15-Y-direction transport code gear; 16-guide rail two; 17-guide rail one; 18-X-direction transport driven wheel; 19-X-direction transport synchronous belt; 20-X-direction installation crossbeam; 21-X-direction transport code gear; 22-Y-direction transport drag chain mounting plate; 23-Y-direction motor mounting plate; 24-X-direction cable protection chain; 25-driving mechanism two; 26-X-direction reset optical coupler; 27-retraction head support; 28-control panel; 29-barcode scanner; 30-scanner installation support; 31-puncture head mounting block; 32-puncture idler support; 33-support column two; 34-Y-direction reset baffle; 35-optical module; 36-driving mechanism four; 37-position detection plate; 38-optical installation plate; 39-position detection installation plate; 40-suction head; 41-gun head mounting block; 42-gun head; 43-Z-direction optical coupler; 44-Y-direction installation crossbeam; 45-Y-direction reset optical coupler; 46-Y-direction reset optical coupler mounting plate; 47-driving mechanism three; 48-Y-direction synchronous belt; 49-Y-direction driven wheel; 50-Y-direction synchronous belt pressing block one; 51-Y-direction synchronous belt pressing block two; 52-Y-direction cable protection chain; 53-Y-direction driving wheel; 54-X-direction protection chain mounting plate; 55-support column three; 56-X-direction driving wheel; 57-X-direction reset baffle; 58-Y-direction driven wheel mounting plate. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the present application clearer, further detailed description will be given below in combination with examples and drawings, the illustrative embodiments of the present application and the description thereof are only used to explain the present application, and do not limit the present application.

[0027] Examples:

[0028] As Figs. 1-3As shown, the embodiment is an automatic sample adding device of an in-vitro diagnostic analyzer, which can realize sample information reading, reagent card puncturing, automatic sample adding, card returning, and detection result collection and output using a light collection assembly. The device comprises an X-direction driving part, a Y-direction driving part, a sample adding part, and a puncturing and card returning part, and realizes three-dimensional direction movement. The Y-direction driving part is installed on the X-direction driving part, the sample adding part and the puncturing and card returning part are connected with the Y-direction driving part, the Y-direction driving part, the sample adding part, and the puncturing and card returning part can move reciprocally along the X-direction, wherein the Y-direction driving part, the sample adding part, and the puncturing and card returning part move as a whole when moving reciprocally along the X-direction. The sample adding part and the puncturing and card returning part can move reciprocally along the Y-direction relative to the Y-direction driving part, wherein the sample adding part and the puncturing and card returning part move as a whole when moving reciprocally along the Y-direction. The sample adding part and the puncturing and card returning part can move reciprocally along the Z-direction relative to the Y-direction driving part, and the Z-direction reciprocating movement of the sample adding part and the puncturing and card returning part is respectively performed. The three-dimensional movement directions X, Y, and Z mentioned in the embodiment are as shown. Fig. 3

[0029] The X-direction driving part comprises a support frame one, which is composed of two support columns one 12, two support columns two 33, two support columns three 55, and an X-direction mounting plate 20. The support columns one 12 and the support columns two 33 are arranged vertically to form a rectangular three-dimensional structure, the support columns three 55 are arranged horizontally between the support columns one 12 and the support columns two 33 and are fixed with the corresponding support columns one 12 or the support columns two 33, and the X-direction mounting plate 20 is located between the support columns three 55 and is fixed with the support columns three 55.

[0030] A driving mechanism one is installed on the X-direction mounting plate 20, and the driving mechanism one serves as an X-direction motor. A transmission mechanism one is connected with the driving mechanism one and is installed on the X-direction mounting plate 20. The transmission mechanism one is composed of an X-direction driving wheel 56, an X-direction transportation driven wheel 18, and an X-direction transportation synchronous belt 19. The X-direction driving wheel 56 and the X-direction transportation driven wheel 18 are installed on the X-direction mounting plate 20 and can rotate around their own axes. The X-direction driving wheel 56 is connected with the output shaft of the driving mechanism one. The X-direction transportation synchronous belt 19 is sleeved on the outer walls of the X-direction driving wheel 56 and the X-direction transportation driven wheel 18 to form a transmission belt. An X-direction synchronous belt pressing block is arranged on the X-direction transportation synchronous belt 19. The Y-direction driving part is installed on the X-direction mounting plate 20 and is connected with the X-direction transportation synchronous belt 19 through the X-direction synchronous belt pressing block, and can move reciprocally along the X-direction with the transmission mechanism one.

[0031] ​In order to realize the guidance of the X direction movement, a guide rail one 17 is arranged on the X direction mounting plate 20, the guide rail one 17 is fixed on the X direction mounting plate 20, used for carrying the remaining components and making them move along the guide rail direction. The Y direction driving part is connected with the guide rail one 17 and can move along the guide rail one 17. The guide rail one 17 is parallel with the X direction transportation synchronous belt 19. The X direction transportation code gear 21 is arranged on the X direction mounting plate 20, the X direction transportation code gear 21 is located between the guide rail one 17 and the X direction transportation synchronous belt 19, at the same time, the X direction mounting plate 20 is also provided with the X direction reset photoelectric coupler 26 and the X direction reset baffle 57, used for realizing the reset function of the X direction. Through the X direction transportation code gear 21, the X direction reset photoelectric coupler 26 and the X direction reset baffle 57, the accurate control is realized. The X direction cable protection chain 24 is arranged on the X direction mounting plate 20, the X direction cable protection chain 24 is installed on the X direction protection chain mounting plate 54, used for protecting the related cable and pipeline.

[0032] Further, the Y direction driving part includes the Y direction mounting beam 44, the Y direction mounting beam 44 is connected with the guide rail one 17 and can move along the guide rail one 17, the driving mechanism two 25 is arranged on the Y direction mounting beam 44 as the Y direction motor, the driving mechanism two 25 is installed on the Y direction motor mounting plate 23, the Y direction motor mounting plate 23 is fixed on the Y direction mounting beam 44, the driving mechanism two 25 is connected with the transmission mechanism two, the transmission mechanism two is composed of the Y direction synchronous belt 48, the Y direction driven wheel 49 and the Y direction driving wheel 53, the Y direction driving wheel 53 is connected with the transmission end of the driving mechanism two 25, the Y direction driven wheel 49 is fixed on the Y direction mounting beam 44 through the Y direction driven wheel mounting plate 58, the Y direction synchronous belt 48 is connected with the Y direction driven wheel 49 and the Y direction driving wheel 53 at the same time to form the transmission belt, the sample adding part and the puncture and card withdrawing part are installed on the Y direction mounting beam 44 and connected with the Y direction synchronous belt 48 through the Y direction synchronous belt pressing block one 50 and the Y direction synchronous belt pressing block two 51, can move along the Y direction reciprocatingly with the transmission mechanism two.

[0033] In order to realize the guide of Y direction movement, guide rail two 16 is arranged on Y direction installation beam 44, guide rail two 16 is fixed on Y direction installation beam 44, used for bearing the rest components and making them move along the guide rail direction, guide rail two 16 is parallel with Y direction synchronous belt 48. Y direction transport code gear 15 is arranged on Y direction installation beam 44, Y direction transport code gear 15 is located between guide rail two 16 and Y direction synchronous belt 48. Y direction reset flapper 34, Y direction reset photoelectric coupler 45 and Y direction reset photoelectric coupler mounting plate 46 are also arranged on Y direction installation beam 44, Y direction reset photoelectric coupler 45 is mounted on Y direction reset photoelectric coupler mounting plate 46, realizing the accurate control of Y direction movement. The sample adding part and the puncture and card withdrawal part are connected with guide rail two 16 and can move along guide rail two 16. Y direction transport drag chain mounting plate 22 and Y direction cable protection chain 52 are arranged on Y direction installation beam 44, Y direction cable protection chain 52 is mounted on Y direction transport drag chain mounting plate 22, used for protecting the related cable and pipeline.

[0034] Further, the sample adding part includes sample adding arm 1, and the sample adding arm 1 is preferably L-shaped structure. The sample adding arm 1 is mounted on Y direction installation beam 44 and connected with guide rail two 16, Y direction synchronous belt pressing block one 50 and Y direction synchronous belt pressing block two 51 are both fixed with sample adding arm 1, so that sample adding arm 1 can move reciprocally in Y direction under the action of driving mechanism two. The puncture and card withdrawal part is mounted on sample adding arm 1 and can move reciprocally in Z direction relative to sample adding arm 1.

[0035] In order to realize the Z direction movement, driving mechanism three 47 and gun head mounting block 41 are arranged on sample adding arm 1, driving mechanism three 47 is Z direction motor, gun head mounting block 41 is connected with driving mechanism three 47 and can move reciprocally in Z direction under the action of driving mechanism three 47, gun head 42 is mounted on gun head mounting block 41, and gun head 42 is used for mounting suction head 40. Guide rail three and guide column are arranged on sample adding arm 1, and gun head mounting block 41 is connected with guide rail three and guide column and can move along guide rail three and guide column. Z direction photoelectric coupler 43 is also arranged on sample adding arm 1, realizing the accurate control of Z direction movement. The sample adding part completes the actions of loading gun head, sucking sample and releasing sample, cooperates with withdrawal suction head support 27, and completes the action of unloading gun head.

[0036] Further, the card ejection part includes a driving mechanism four 36 and a piercing head mounting block 31, both of which are mounted on the sample adding arm 1, the piercing head mounting block 31 is provided with a piercing head 2, and the driving mechanism four 36 is a piercing motor. The sample adding arm 1 is provided with a transmission mechanism three, which is composed of a piercing driving wheel 11, a piercing driven wheel 5 and a piercing synchronous belt 4. The piercing driving wheel 11 is mounted on the sample adding arm 1 and can rotate around its own axis. The piercing driven wheel 5 is mounted on the sample adding arm 1 through a piercing idler support 32 and can rotate around its own axis. The piercing driving wheel 11 is connected with the output end of the driving mechanism four 36. The piercing synchronous belt 4 is connected with the piercing driving wheel 11 and the piercing driven wheel 5 to form a conveying belt. The piercing synchronous belt 4 is fixed with a piercing synchronous belt dragging block 13, and the piercing synchronous belt dragging block 13 is connected with the piercing head mounting block 31. In this way, the driving mechanism four 36 can drive the piercing synchronous belt 4 to move, so that the piercing head mounting block 31 and the piercing head 2 move to realize the piercing function.

[0037] In order to realize the guidance of the piercing action, the sample adding arm 1 is provided with a guide rail four, the piercing head mounting block 31 is connected with the guide rail four and can move along the guide rail four. The sample adding arm 1 is also provided with a piercing reset optical coupler 14 and a piercing reset baffle 10 to realize the accurate control of the piercing displacement. The piercing card ejection part is driven by the synchronous wheel and the synchronous belt to move in the Z direction, complete the piercing of the reagent card, the position correction of the reagent card and the exit of the waste card strip. The sample adding arm 1 is provided with a control panel 28 to control the action.

[0038] One side wall of one of the support columns two 33 is provided with a suction head support 27. The sample adding arm 1 is provided with a reagent card recycling push rod 3, which is provided with a guide block one 7, a guide block two 8 and a guide block three 9. The reagent card recycling push rod 3 is connected with the piercing synchronous belt mounting block 6 and the piercing synchronous belt 4. After moving in the X direction, the Y direction and the Z direction, the reagent card recycling push rod 3 cooperates with the suction head support 27 to complete the action.

[0039] The sample adding arm 1 is also provided with a light collecting part, which is composed of a light collecting module 35 and an optical mounting plate 38. The optical mounting plate 38 is mounted on the sample adding arm 1, and the light collecting module 35 is mounted on the optical mounting plate 38. The light collecting part itself is not movable, and moves with the X and Y direction driving parts to complete light collection, information processing and output at the corresponding position. The light collecting part and the gun head mounting block 41 are located on the same side of the sample adding arm 1. At the same time, a position detection mounting plate 39 is also mounted on the same side of the sample adding arm 1, and the position detection plate 37 is mounted on the position detection mounting plate 39.

[0040] The operation method of the automatic sample adding device of the in-vitro diagnostic analyzer involved in the scheme is as follows:

[0041] 1) reagent card position correction: after the reagent card strip is placed, the puncture card part of the device moves to the position where the reagent card strip is loaded under the drive of the X and Y direction driving part. Guiding block three 9 moves in the Z direction under the drive of the puncture motor, puncture driving wheel 11 and puncture synchronous belt 4, and corrects the position of the reagent card under the drive of the Y direction driving part. The position detection plate 37 detects the position of the reagent card after correction;

[0042] 2) reagent card information collection: after the reagent card position is corrected, the barcode scanner 29 installed on the sample adding arm 1 scans the code under the drive of the X and Y direction driving part. The barcode scanner 29 is installed on the sample adding arm 1 through the scanner mounting bracket, and collects the information of the reagent card and the sample;

[0043] 3) reagent card strip puncture: after the reagent card strip position is corrected, the puncture head 2 moves to the position of the reagent card strip to be punctured under the drive of the X and Y direction driving part. The puncture head 2 moves in the Z direction under the drive of the puncture motor, puncture driving wheel 11 and puncture synchronous belt 4, and punctures the reagent card strip. It is worth noting that the puncture and reagent card correction share a set of power and there is no motion interference;

[0044] 4) sample adding and solution transferring: after the gun head 42 of the sample adding part moves to the appropriate position under the drive of the X and Y direction driving part, the Z direction motor controls the gun head 42 to move in the Z direction to take the suction head 40. Under the cooperation of the X and Y direction driving part, the suction head 40 completes the adding and transferring of the solution in the sample tube;

[0045] 5) optical information acquisition: after the solution of the reaction completed in the sample adding part is placed in the light collecting area, the optical module 35 of the light collecting part collects and uploads the information under the drive of the X and Y direction driving part;

[0046] 6) suction head removal and reagent card exit: under the drive of the X and Y direction driving part, the gun head 42 of the sample adding part moves to the appropriate position, and the suction head is removed through the Z direction movement of the Z direction motor under the cooperation of the suction head support 27. Guiding block three 9 moves in the Z direction under the drive of the puncture motor, puncture driving wheel 11 and puncture synchronous belt 4, and removes the reagent card strip in the Y direction under the cooperation of the Y direction driving part.

[0047] The present application shares a structure for puncturing and removing reagent cards, which is compact and efficient; after the reagent, sample and consumables are put in, the device automatically tests and outputs results, realizing full automation of the process; it automatically records and finds unused disposable suction heads, accurately controls the sample capacity, avoids the reuse of suction heads, sample pollution caused by the reuse of suction heads, and the influence on detection accuracy; the device has a puncturing function, the reagent card can be sealed and packaged, and only the corresponding area is punctured when used, the shelf life of the reagent is relatively long, and the reagent transportation is convenient; the sealed and packaged reagent can be used immediately; the device can automatically remove the waste suction heads and reagent card strips, saving a lot of manpower and material resources, avoiding human contact with the waste reagent card strips, and having high protection, safety and reliability; it has a code tooth detection, the position control of the device is more accurate, it is accurate and reliable; the light collecting part is attached to the sample adding part, the result can be quickly obtained after the solution reaction is completed, and the rapidity of the action is realized.

[0048] The above detailed description further describes the purpose, technical solutions and beneficial effects of the present application, and it should be understood that the above is only a specific embodiment of the present application and is not used to limit the protection scope of the present application, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An automatic sample dispensing device for an in vitro diagnostic analyzer, characterized in that: The device includes an X-axis driving section, a Y-axis driving section, a sample feeding section, and a card ejection section. The Y-axis driving section is mounted on the X-axis driving section and can reciprocate along the X-axis. The sample feeding section and the card ejection section are both connected to the Y-axis driving section and can reciprocate relative to the Y-axis driving section in the Z-axis direction. The sample feeding section and the card ejection section can reciprocate along the Y-axis driving section in the X-axis direction and can reciprocate relative to the Y-axis driving section in the Y-axis direction. The X-axis driving section includes a support frame, on which a driving mechanism is provided. The driving mechanism is connected to a transmission mechanism, which is mounted on the support frame. The Y-axis driving section is mounted on the support frame and connected to the transmission mechanism, and can reciprocate along the transmission mechanism in the X-axis direction. A guide rail (17) is provided on the support frame, and the guide rail (17) is fixed to the support frame. The first part is connected to the first guide rail (17) and can move along the first guide rail (17); the second part is a Y-direction mounting beam (44), which is connected to the first guide rail (17) and can move along the first guide rail (17). The second part is a driving mechanism (25) on the Y-direction mounting beam (44), which is connected to the second transmission mechanism. The second transmission mechanism is installed on the Y-direction mounting beam (44). The sample addition part and the card puncture and ejection part are installed on the Y-direction mounting beam (44) and connected to the second transmission mechanism, and can move back and forth in the Y direction with the second transmission mechanism. The second part is a guide rail (16) on the Y-direction mounting beam (44), which is fixed on the Y-direction mounting beam (44). The sample addition part and the card puncture and ejection part are both connected to the second guide rail (16) and can move along the second guide rail (16).

2. The automatic sample dispensing device for an in vitro diagnostic analyzer according to claim 1, characterized in that: The sample feeding part includes a sample feeding arm (1), a puncture and card ejection part is installed on the sample feeding arm (1) and can move back and forth in the Z direction relative to the sample feeding arm (1). The sample feeding arm (1) is installed on the Y direction mounting beam (44) and is simultaneously connected to the second transmission mechanism and the second guide rail (16) and can move back and forth in the Y direction with the second transmission mechanism and the second guide rail (16).

3. The automatic sample dispensing device for an in vitro diagnostic analyzer according to claim 2, characterized in that: The sample feeding arm (1) is provided with a drive mechanism three (47) and a nozzle mounting block (41). The nozzle mounting block (41) and the drive mechanism three (47) are connected and can move in the Z direction under the action of the drive mechanism three (47). A nozzle (42) is mounted on the nozzle mounting block (41).

4. The automatic sample dispensing device for an in vitro diagnostic analyzer according to claim 3, characterized in that: The sample feeding arm (1) is provided with a guide rail and a guide post, and the nozzle mounting block (41) is connected to the guide rail and the guide post and can move along the guide rail and the guide post.

5. The automatic sample dispensing device for an in vitro diagnostic analyzer according to claim 2, characterized in that: The puncture and card ejection part includes a drive mechanism four (36) and a puncture head mounting block (31). Both the drive mechanism four (36) and the puncture head mounting block (31) are mounted on the sample feeding arm (1). The sample feeding arm (1) is provided with a transmission mechanism three, and the transmission mechanism three is connected to both the drive mechanism four (36) and the puncture head mounting block (31). The puncture head mounting block (31) can move back and forth in the Z direction with the transmission mechanism three. A puncture head (2) is mounted on the puncture head mounting block (31).

6. The automatic sample dispensing device for an in vitro diagnostic analyzer according to claim 5, characterized in that: The sample feeding arm (1) is provided with a guide rail four, and the puncture head mounting block (31) is connected to the guide rail four and can move along the guide rail four.

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