Sample processing equipment

Abstract

The utility model relates to the technical field of reagent preparation, in particular to sample processing equipment which comprises a sample adding system, a preparation system and a storage system which are sequentially arranged, the sample adding system comprises a sample adding mechanism, and the sample adding mechanism is used for placing a reagent container to be added with liquid; the puncturing mechanism is used for puncturing the seal of the reagent container; the pushing mechanism is used for pushing a reagent container in the sample adding mechanism to a puncture position, the reagent container is punctured by the puncture mechanism, the preparation system comprises a preparation barrel and a stirring assembly, a weighing assembly is arranged below the preparation barrel, the puncture mechanism is communicated to the preparation barrel, a sampled reagent is sent into the preparation barrel, and the stirring assembly is arranged below the preparation barrel. The preparation system is used for preparing a reagent and sending the prepared reagent to the storage system. The sample preparation device has the advantages that the problems that in the prior art, manual sample preparation occupies a large amount of labor cost, and the error rate is increased are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sample preparation, especially to a sample processing device. BACKGROUND

[0002] The sample preparation instrument is an instrument for pre-treating samples before testing on a machine, and the sample can be detected and analyzed on a measuring instrument after pre-treatment. Usually, the sample needs to be manually processed, and the sample preparation process is complex, including manual sample adding, reagent adding, shaking, mixing, etc. With the rapid growth of detection demand, the demand for sample pre-treatment also increases. If manual sample preparation continues, it will occupy a large amount of human cost and increase the error rate, and it is also difficult to ensure the consistency of sample processing, which may also pose a certain safety risk to the operator. Therefore, a fully automated sample preparation instrument is needed to pre-treat the sample, so as to replace manual operation and prevent biological contamination, and complete various sample preparations. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a sample processing device, which can improve the effect of manual sample preparation in the prior art, which occupies a large amount of human cost and increases the error rate, and reduces the safety risk of the operator caused by improper operation.

[0004] The above utility model of the utility model is realized by the following technical scheme:

[0005] A sample processing device comprises a sample adding system, a preparation system and a storage system arranged in sequence, the sample adding system comprises a sample adding mechanism, the sample adding mechanism is used for placing a reagent container to be added, a piston is arranged at the top port of the reagent container, and the piston is slidingly arranged in the reagent container; a puncture mechanism is arranged, the puncture mechanism is used for puncturing the seal of the reagent container; a pushing mechanism is arranged, the pushing mechanism is used for pushing the reagent container in the sample adding mechanism to the puncture mechanism, the reagent container is punctured by the puncture mechanism, the preparation system comprises a preparation barrel and a stirring assembly, a weighing assembly is arranged below the preparation barrel, the puncture mechanism is communicated to the preparation barrel, and the reagent is delivered to the preparation barrel, the preparation system prepares the reagent, and the prepared reagent is communicated to the storage system.

[0006] By adopting the above technical scheme, the effect of manual sample preparation in the prior art, which occupies a large amount of human cost and increases the error rate, cannot guarantee the consistency of sample processing, and poses a certain safety risk to the operator, is alleviated.

[0007] The utility model discloses in a preferable example can be further configured as: the sample adding mechanism includes the index disc subassembly for placing reagent container, the drive subassembly for pushing reagent container in the index disc subassembly to the puncture position.

[0008] Through adopting above-mentioned technical scheme, reagent is pushed to push mechanism below by drive component automatically, reduce the manpower participation, improve work efficiency.

[0009] The utility model discloses in a preferable example can be further configured as: the index disc subassembly includes index disc, the needle cylinder frame for supporting index disc and the support rod setting below needle cylinder frame, be equipped with a plurality of sample holes around the center of index disc, and the reagent container is arranged in sample hole.

[0010] Through adopting above-mentioned technical scheme, a plurality of sample holes can conveniently assemble multiple reagents for scientific researchers once, and avoid the trouble of adding reagent frequently.

[0011] The utility model discloses in a preferable example can be further configured as: the drive component includes the driving piece for driving index disc rotation and positioning part, and the positioning part includes the positioning sheet setting on index disc and the positioning sensor with the cooperation of positioning sheet.

[0012] Through adopting above-mentioned technical scheme, drive component drives index disc rotation, when positioning sheet and positioning sensor couple, index disc stops rotation, and reagent stops between push mechanism and puncture mechanism, and the next operation is convenient.

[0013] The utility model discloses in a preferable example can be further configured as: the push mechanism includes drive module and by drive module drive up and down movement's push rod, and the push rod one end is connected with drive module, and the other end leans against piston, and drive module drives piston and pushes out reagent in reagent container.

[0014] Through adopting above-mentioned technical scheme, drive module drives push rod and piston at push rod end and pushes out reagent in reagent container completely.

[0015] The utility model discloses in a preferable example can be further configured as: the drive module includes push motor, by push motor drive rotation's threaded rod, with the threaded connection of threaded rod's connecting block, and the connecting block is connected with push rod, and drive module still includes the vertical setting guide rail and with the sliding connection of guide rail's sliding block, and the sliding block is connected with connecting block.

[0016] The utility model discloses in a preferable example can be further configured as: the reagent container includes the pipe body and sets up the pipe along on the pipe body top edge, the pipe body bottom is equipped with the pipe hole, the sample hole is equipped with the buffer component above, the buffer component includes the fixed plate, is equipped with the hole for passing through reagent container on the fixed plate, the pipe along is covered on the fixed plate, is equipped with the cotter on the index plate, the cotter is slidably connected with the fixed plate, is equipped with the spring on the cotter, the spring one end and the fixed plate top touch, the other end and the index plate top touch.

[0017] Through adopting the above technical scheme, when the driving module drives the push rod to move downwards, the push rod pushes the reagent to move downwards, the reagent container is moved downwards under the pushing force to press the buffer component, until the pipe hole contacts the puncture mechanism, the reagent is punctured by the puncture mechanism, after the reagent is discharged, the driving module drives the push rod to recover, and the buffer piece resets.

[0018] The utility model discloses in a preferable example can be further configured as: the puncture mechanism includes the puncture head, is equipped with the washing hole and the washing channel that communicate with the washing hole on the puncture head, the puncture mechanism includes the shell, the puncture head sets up in the shell.

[0019] Through adopting the above technical scheme, the washing channel communicates the washing liquid, and the washing liquid enters the washing hole through the washing channel to wash the puncture mechanism.

[0020] The utility model discloses in a preferable example can be further configured as: the weighing assembly includes the weighing base that sets up below the preparation bucket and the weighing sensor that sets up below the weighing base.

[0021] Through adopting the above technical scheme, the reagent solution in the equipment can be accurately measured, and accurate preparation can be carried out.

[0022] The utility model discloses in a preferable example can be further configured as: the stirring assembly includes the stirring motor, the stirring paddle, and the stirring shaft connected with the stirring paddle, and the stirring shaft and the main shaft of the stirring motor are connected through the shaft coupling.

[0023] Through adopting the above technical scheme, the stirring assembly stirs and mixes various reagent solutions, and the preparation efficiency is improved.

[0024] In conclusion, the utility model has at least one of the following beneficial technical effects:

[0025] 1. The index plate is positioned and identified, the reagent container placement and use condition are automatically judged, manual misoperation is avoided, and mechanical injury caused by push rod pressing is avoided.

[0026] 2. When the reagent container and the index plate reach the puncture position, the push rod only drives the reagent container to press downwards in the initial stage, until the reagent container contacts the puncture mechanism, and the bottom seal of the reagent container is punctured.

[0027] 3. After the sample is added, start to add water. The purpose of adding water is: to clean the piercing part and the piercing head, to avoid the drug residue in the piercing mechanism and cause drug pollution in the next operation; the second purpose is to clean the inside of the reagent container, to clean the drug residue in the reagent container as much as possible, to avoid the drug residue in the reagent container, and to make the solution composition more accurate. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a schematic diagram of the overall structure of the embodiment;

[0029] Figure 2 is a schematic diagram of the structure of the sample adding system in the embodiment;

[0030] Figure 3 is a schematic diagram of the positional relationship of the push rod, the reagent container and the piercing mechanism in the embodiment;

[0031] Figure 4 is a schematic diagram of the structure of the reagent container in the embodiment;

[0032] Figure 5 is a sectional view of the reagent container in the embodiment;

[0033] Figure 6 is a schematic diagram of the structure of the push rod and the piston in the embodiment;

[0034] Figure 7 is a schematic diagram of the structure of the piercing mechanism in the embodiment;

[0035] Figure 8 is a sectional view of the piercing rod in the embodiment;

[0036] Figure 9 is a side view of the preparation system in the embodiment;

[0037] Figure 10 is a schematic diagram of the structure of the preparation system in the embodiment;

[0038] Figure 11 is a sectional view of the preparation barrel in the embodiment.

[0039] In the figure, 1, sample adding system; 2, preparation system; 3, storage system; 100, sample adding mechanism; 110, index plate assembly; 111, index plate; 112, needle cylinder rack; 113, support rod; 114, sample hole; 115, reagent container; 116, tube body; 117, tube along; 120, driving assembly; 121, driving piece; 122, positioning part; 123, positioning sheet; 124, positioning sensor; 130, buffer part; 131, fixed plate; 132, pin; 133, spring; 140, pulley; 200, pushing mechanism; 210, driving module; 211, pushing motor; 212, threaded rod; 213, connecting block; 214, guide rail; 215, sliding block; 220, push rod; 230, piston; 300, puncture mechanism; 301, puncture head; 302, cleaning channel; 303, cleaning hole; 310, shell; 311, puncture rod; 400, preparation barrel; 411, buckle; 412, handle; 413, water inlet; 414, discharge port; 415, heat preservation layer; 416, heat insulation plate; 417, heating film; 418, overflow hole; 500, stirring assembly; 521, stirring motor; 522, coupling; 523, stirring shaft; 530, weighing assembly; 531, weighing sensor; 532, weighing base; 540, barrel cover; 541, sterilization lamp. DETAILED DESCRIPTION

[0040] The utility model will be made further detailed description in combination with the drawings. EMBODIMENT

[0041] REFERENCE Figures 1-2 The utility model discloses a sample processing equipment, including the sample adding system 1, preparation system 2 and storage system 3 that set gradually, the sample adding system 1 adds reagent to preparation system 2, and preparation system 2 prepares reagent, and the reagent of ready configuration is sent to storage system 3. The sample adding system 1 is set on the upper frame, and preparation system 2 is set on the middle frame, and storage system 3 is set on the lower frame.

[0042] The sample adding system 1 includes sample adding mechanism 100, pushing mechanism 200 and puncture mechanism 300, and the sample adding mechanism 100 is used for placing the reagent container 115 to be added liquid, and the puncture mechanism 300 is used for puncturing the seal of the reagent container 115, and the pushing mechanism 200 is used for pushing the reagent container 115 in the sample adding mechanism 100 to the puncture mechanism 300, and the bottom seal of the reagent container 115 is punctured by the puncture mechanism 300.

[0043] REFERENCE Figures 2-6 The sample adding mechanism 100 includes the index plate assembly 110 for placing the reagent container 115, and the driving assembly 120 for pushing the reagent container 115 in the index plate assembly 110 to the puncture position.

[0044] The index plate assembly 110 comprises a circular index plate 111, an annular needle cylinder holder 112 arranged below the index plate 111 for supporting the index plate 111, and a support rod 113 arranged below the needle cylinder holder 112, the support rod 113 supporting the needle cylinder holder 112, and the support rod 113 being mounted on the bottom plate of the upper frame. The index plate 111 is provided with eight circular sample holes 114 arranged around the center of the index plate 111, and reagent containers 115 are arranged in the sample holes 114, and reagents are pre-assembled in the reagent containers 115. The plurality of sample holes 114 can facilitate researchers to assemble multiple reagents at one time and avoid the trouble of frequent addition of reagents.

[0045] The reagent container 115 comprises a cylindrical tube body 116, the top edge of the tube body 116 is provided with an annular tube edge 117, the bottom end of the tube body 116 is arranged in a conical shape, and the bottom of the tube body 116 is provided with a tube hole. The tube body 116 is assembled with pre-configured reagents, the bottom of the tube hole is sealed, but the seal can be pierced by the piercing mechanism 300. The piston 230 is arranged at the top port of the tube body 116, and the piston 230 can seal the top port of the tube body 116 on one hand, and cooperate with the driving assembly 120 to push the pre-configured reagents in the reagent container 115 out of the bottom tube hole of the tube body 116 on the other hand.

[0046] The index plate assembly 110 further comprises a photoelectric sensor 118 for detecting whether the piston 230 in the reagent container 115 has pushed the reagents in the reagent container 115 out, so as to avoid damage to the reagent container 115 caused by the idling of the driving assembly 120.

[0047] The driving assembly 120 comprises a driving member 121 for driving the rotation of the index plate 111 and a positioning component 122, the driving member 121 adopts a motor, the main shaft of the motor is connected with the center of the index plate 111, and the motor drives the index plate 111 to rotate on the annular needle cylinder holder 112. The positioning component 122 comprises a positioning sheet 123 arranged on the index plate 111 and a positioning sensor 124 cooperating with the positioning sheet 123, the positioning sheet 123 is arranged on the edge of the index plate 111, and each sample hole 114 corresponds to one positioning sheet 123. The driving member 121 drives the rotation of the index plate 111, and when the positioning sheet 123 is coupled with the positioning sensor 124, the rotation of the index plate 111 is stopped, and the reagents are stopped between the pushing mechanism 200 and the piercing mechanism 300, so as to accurately perform the next operation.

[0048] The sample hole 114 is provided with a buffer component 130, the buffer component 130 comprises a fixed plate 131, the fixed plate 131 is provided with a hole for passing the reagent container 115, the tube of the reagent container 115 is placed on the fixed plate 131, the index disc 111 is provided with a pin 132, the pin 132 is in sliding connection with the fixed plate 131, the top of the pin 132 is provided with a pin cap, the pin cap prevents the pin 132 from sliding off the fixed plate 131, the pin 132 is sleeved with a spring 133, one end of the spring 133 is in contact with the top of the fixed plate 131, and the other end is in contact with the top of the index disc 111.

[0049] With reference to Figure 5 The needle cylinder frame 112 and the index disc 111 are further provided with a pulley 140, the pulley 140 is used to reduce the friction force of the index disc 111 when the needle cylinder frame 112 rotates.

[0050] With reference to Figure 3 The pushing mechanism 200 comprises a driving module 210 and a push rod 220 driven by the driving module 210 to move up and down, one end of the push rod 220 is connected with the driving module 210, and the other end is provided with a push plate abutting against a piston 230, the driving module 210 drives the piston 230 to push the reagent in the reagent container 115 out.

[0051] The driving module 210 comprises a pushing-out motor 211, a threaded rod 212 driven by the pushing-out motor 211 to rotate, and a connecting block 213 in threaded connection with the threaded rod 212, the connecting block 213 is connected with the push rod 220, the pushing-out motor 211 is installed on the upper layer frame, and the threaded rod 212 and the push rod 220 are both arranged in the vertical direction, the driving module 210 further comprises a vertical guide rail 214 and a sliding block 215 in sliding connection with the guide rail 214, and the sliding block 215 is connected with the connecting block 213.

[0052] When the driving module 210 drives the push rod 220 to move downward, the push rod 220 pushes the reagent container 115 to move downward, the reagent container 115 is moved downward under the pushing force and presses the buffer component 130, until the tube hole contacts the puncture mechanism 300, the bottom sealing of the reagent container 115 is punctured by the puncture mechanism 300, the driving module 210 further drives the push rod 220 to move downward, and the reagent in the reagent container 115 is discharged by the push rod 220 pushing the piston 230. After the reagent is discharged, the driving module 210 drives the push rod 220 to recover, and the buffer component 130 is reset.

[0053] With reference to Figures 6-8The puncture mechanism 300 comprises a puncture head 301 and a shell 310, the puncture head 301 is arranged in the shell 310, and the puncture head 301 is provided with a cleaning hole 303 and a cleaning channel 302 communicating with the cleaning hole 303. The shell 310 comprises two annular rings with different diameters, the large-diameter annular ring is located above the small-diameter annular ring, the puncture head 301 is located in the large-diameter annular ring, a puncture rod 311 is arranged in the large-diameter annular ring, the puncture head 301 is located on the puncture rod 311, and the shell 310 is communicated with the preparation system 2. The extracted reagent is added into the preparation system 2, and the cleaning channel 302 is arranged on the puncture rod 311 and communicated with an external pipeline, and is used for introducing a cleaning liquid.

[0054] With reference to Figures 9-11 The preparation system 2 comprises a cylindrical preparation barrel 400, a stirring assembly 500 and a weighing assembly 530 arranged below the preparation barrel 400.

[0055] A barrel cover 540 is arranged above the preparation barrel 400, three buckles 411 are arranged on the outer wall of the preparation barrel 400, and the barrel cover 540 is detachably fixedly arranged on the preparation barrel 400 through the buckles 411. A handle 412 is further arranged on the outer wall of the preparation barrel 400.

[0056] A water inlet 413 is arranged on the barrel cover 540, so that water and reagents can be conveniently added for dilution and solution preparation.

[0057] A sterilization lamp 541 is arranged on the barrel cover 540, the sterilization lamp 541 is an ultraviolet sterilization lamp 541, a position corresponding to the sterilization lamp 541 is arranged on the barrel cover 540, and a lampshade is arranged on the sterilization lamp 541. The sterilization lamp 541 can kill bacteria in the preparation barrel 400, so as to prevent bacterial pollution of the reagent, and can also sterilize during self-cleaning of the preparation barrel 400.

[0058] The stirring assembly 500 comprises a stirring motor 521, a stirring paddle, a stirring shaft 523 connected with the stirring paddle, and the stirring shaft 523 is connected with a main shaft of the stirring motor 521 through a coupling 522. An axle hole is arranged on the barrel cover 540, and the stirring shaft 523 is connected with the stirring paddle through the axle hole.

[0059] The stirring motor 521 is arranged on the top plate of the middle layer frame, and the weighing sensor 531 is arranged on the bottom plate of the middle layer frame, so that the weighing sensor 531 is prevented from being mismeasured due to stress of the stirring shaft 523. The stirring shaft 523 is detachably connected with the main shaft of the motor through the coupling 522, so that the barrel cover 540 and the preparation barrel 400 can be conveniently disassembled and cleaned.

[0060] With reference to Figure 9 An overflow hole 418 is arranged on the preparation barrel 400 close to the top edge of the preparation barrel 400. The reagent exceeding the capacity of the preparation barrel 400 flows out from the overflow hole 418.

[0061] Referring to Figures 9-11 The preparation barrel 400 is provided with a discharge port 414 at a position close to the bottom edge thereof, and the inner bottom wall of the preparation barrel 400 is provided as a slope surface, and the discharge port 414 is arranged at the bottom of the slope surface. The bottom surface of the preparation barrel 400 is provided as a slope surface, so that the reagent can be discharged, and residual reagent is avoided.

[0062] Referring to Figure 9 The outer wall of the preparation barrel 400 is provided with a heat preservation layer 415. The heat preservation layer 415 can further preserve the reagent in the preparation barrel 400.

[0063] Referring to Figures 9-11 The bottom surface of the preparation barrel 400 is provided with a heating film 417, the bottom of the preparation barrel 400 is provided with a heat insulation plate 416, the heat insulation plate 416 covers the heating film 417, and the bottom of the preparation barrel 400 is provided with a temperature sensor. The temperature sensor is installed at the center of the bottom of the preparation barrel 400, and the wires of the temperature protection switch, the heating film 417 and the like are placed in the line grooves reserved in the heat insulation plate 416, and the outgoing direction is opposite to the side of the discharge port 414, so as to avoid short circuit caused by contact with water.

[0064] The weighing assembly 530 includes a weighing base 532 arranged below the preparation barrel 400 and a weighing sensor 531 arranged below the weighing base 532. The weighing base 532 carries the preparation barrel 400, and the weighing sensor 531 is arranged on the bottom plate of the middle layer frame. The weighing sensor 531 measures the pressure conducted by the weighing base 532, so as to measure the weight of the reagent in the preparation barrel 400. After the reagent is added to the preparation barrel 400, the weighing assembly 530 can measure the weight of the added reagent, so as to achieve more accurate preparation.

[0065] The reserve system 3 is located below the preparation system 2. The reagent prepared by the preparation system 2 is added to the reserve system 3. The structure of the reserve system 3 is basically the same as that of the preparation system 2, and the working principle is basically the same. The main difference is that the barrel capacity of the reserve system 3 is greater than that of the barrel in the preparation system 2.

[0066] The implementation principle of the embodiment is as follows:

[0067] 1. The reagent container 115 is manually placed in the reagent container 115 placing position, and the reagent container 115 for accurate injection is selected;

[0068] 2. The driving member drives the index plate 111 to rotate one revolution, and the scanning position identifies the reagent container 115 placing and using situation, so as to avoid mechanical injury caused by the push rod 220 pressing down;

[0069] 3. The index plate 111 rotates, and the target reagent container 115 is rotated to the puncture position;

[0070] 4. The push rod 220 presses down, and the reagent container 115 shell 310 is in contact with the puncture mechanism 300, and the puncture injection is started;

[0071] 5. After injection is completed, pure water is cleaned;

[0072] 6. After cleaning is completed, the push rod 220 rises, and the index plate 111 rotates to the default position;

[0073] 7. The preparation barrel 400 is watered at the water inlet, and after 1L is reached, heating is started to keep warm, so as to avoid loss caused by dry burning and crystallization of the reagent;

[0074] 8. During preparation, stirring is performed after the target capacity is reached;

[0075] 9. After incubation is completed, the discharge is opened, and pumping to the reserve system 3 is performed, and stirring for one minute every half hour is performed, so as to avoid reagent precipitation;

[0076] 10. After each operation is completed, self-cleaning and ultraviolet sterilization are performed.

[0077] The embodiments of the specific implementation mode are the preferred embodiments of the utility model, and are not limited to the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A sample processing apparatus, characterized by: The sample adding system (1), the preparation system (2) and the storage system (3) are sequentially arranged, the sample adding system (1) comprises, The sample adding mechanism (100) is used for placing the reagent container (115) to be added, a piston (230) is arranged at the top port of the reagent container (115), and the piston (230) is slidingly arranged in the reagent container (115); The puncture mechanism (300) is used for puncturing the seal of the reagent container (115); The push mechanism (200) is used for pushing the reagent container (115) in the sample adding mechanism (100) to the puncture mechanism (300), and the seal of the reagent container (115) is punctured by the puncture mechanism (300), The preparation system (2) comprises a preparation barrel (400) and a stirring assembly (500), a weighing assembly (530) is arranged below the preparation barrel (400), the puncture mechanism (300) is communicated to the preparation barrel (400), the reagent is delivered to the preparation barrel (400), the preparation system (2) prepares the reagent, and the prepared reagent is communicated to the storage system (3).

2. A sample processing apparatus according to claim 1, characterised in that: The sample adding mechanism (100) comprises a indexing disc assembly (110) for placing the reagent container (115) and a driving assembly (120) for pushing the reagent container (115) in the indexing disc assembly (110) to a puncture position.

3. A sample processing apparatus according to claim 2, wherein: The indexing disc assembly (110) comprises an indexing disc (111), a needle cylinder rack (112) for supporting the indexing disc (111) and a supporting rod (113) arranged below the needle cylinder rack (112), a plurality of sample holes (114) are arranged around the center of the indexing disc (111), and the reagent container (115) is arranged in the sample hole (114).

4. A sample processing apparatus according to claim 3, wherein: The driving assembly (120) comprises a driving part (121) for driving the indexing disc (111) to rotate and a positioning part (122), the positioning part (122) comprises a positioning sheet (123) arranged on the indexing disc (111) and a positioning sensor (124) matched with the positioning sheet (123).

5. A sample processing apparatus according to claim 3, wherein: The push mechanism (200) comprises a driving module (210) and a push rod (220) driven by the driving module (210) to move up and down, one end of the push rod (220) is connected with the driving module (210), the other end abuts against the piston (230), and the driving module (210) drives the piston (230) to push the reagent in the reagent container (115) out.

6. A sample processing apparatus according to claim 5, wherein: The driving module (210) comprises a pushing-out motor (211), a threaded rod (212) driven by the pushing-out motor (211) to rotate, a connecting block (213) threadedly connected with the threaded rod (212), the connecting block (213) is connected with the push rod (220), the driving module (210) further comprises a vertical guide rail (214) and a sliding block (215) slidingly connected with the guide rail (214), and the sliding block (215) is connected with the connecting block (213).

7. A sample processing apparatus as claimed in claim 3, characterized in that: The reagent container (115) comprises a tube body (116) and a tube edge (117) arranged at the top edge of the tube body (116), the bottom of the tube body (116) is provided with a tube hole, a buffer part (130) is arranged above the sample hole (114), the buffer part (130) comprises a fixing plate (131), the fixing plate (131) is provided with a hole for passing through the reagent container (115), the tube edge (117) is lapped on the fixing plate (131), the index plate (111) is provided with a pin (132), the pin (132) is in sliding connection with the fixing plate (131), the pin (132) is sleeved with a spring (133), one end of the spring (133) is in top contact with the fixing plate (131), and the other end is in top contact with the index plate (111).

8. The sample processing apparatus of claim 1, wherein: The puncture mechanism (300) comprises a puncture head (301), the puncture head (301) is provided with a cleaning hole (303) and a cleaning channel (302) communicated with the cleaning hole (303), the puncture mechanism (300) comprises a shell (310), and the puncture head (301) is arranged in the shell (310).

9. The sample processing apparatus of claim 1, wherein: The weighing assembly (530) comprises a weighing base (532) arranged below the preparation barrel (400) and a weighing sensor (531) arranged below the weighing base (532).

10. The sample processing apparatus of claim 1, wherein: The stirring assembly (500) comprises a stirring motor (521), a stirring paddle, and a stirring shaft (523) connected with the stirring paddle, and the stirring shaft (523) is connected with the main shaft of the stirring motor (521) through a shaft coupling (522).

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