Intelligent sample reserving device

Abstract

The invention relates to the technical field of medical equipment, in particular to an intelligent sample reserving device which comprises a peristaltic pump, a clamping mechanism, a sample reserving pipe bracket, a mechanical transmission mechanism and a bag body containing part which are arranged on a machine body, the peristaltic pump is arranged above the clamping mechanism, and a displacement sliding groove extending in the Z-axis direction is formed in the position, below the clamping mechanism, of the machine body; the mechanical transmission mechanism is arranged in the machine body, a rotating shaft of the mechanical transmission mechanism penetrates through the displacement sliding groove to be connected with the reserved sample pipe bracket, a plurality of containing grooves extending in the radial direction of the reserved sample pipe bracket are formed in the circumferential outer surface of the reserved sample pipe bracket in the circumferential direction of the reserved sample pipe bracket, and the reserved sample pipe bracket rotates or moves up and down in the Z-axis direction under the action of the mechanical transmission mechanism. Accurate regulation and control of the blood sampling amount are achieved through the peristaltic pump, the mechanical transmission mechanism is matched to drive the sample reserving tube bracket to complete rotation and lifting two-degree-of-freedom movement, continuous sample reserving and uniform mixing operation of multiple tubes can be efficiently completed, meanwhile, manual operation errors are avoided, and standardization and reliability of sample collection are guaranteed.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to an intelligent sample retention device. Background Technology

[0002] In many fields such as medical testing, blood screening, and clinical diagnosis, blood sampling is the basic prerequisite for subsequent testing. The standardization of its operation and the stability of sample quality directly affect the accuracy and reliability of the test results, and play an irreplaceable role in disease diagnosis, treatment plan formulation, and health status assessment.

[0003] Current blood sampling techniques primarily rely on traditional manual operation and simple blood collection devices. The core process involves removing the protective sheath using a blood collection assembly, then puncturing the body to collect blood. To save costs, this technology eliminates the dedicated sampling device, instead using a lancet to collect blood through a vacuum blood collection tube. The negative pressure inside the tube draws the blood to a preset level, and the lancet is then removed, completing a single blood collection. Simultaneously, to ensure the stability of the blood sample, the vacuum blood collection tube is pre-filled with an anticoagulant, requiring manual shaking of the sample after collection. However, this existing technology has revealed several problems that urgently need to be addressed in practical applications: First, the risk of occupational exposure is high. The needles used for blood collection are sharp, and operators are highly susceptible to needlestick injuries during the insertion of the vacuum blood collection tube after puncture, thus facing the risk of infection with blood-borne diseases. Second, the risk of sample confusion is high. Clinical testing usually requires the simultaneous collection of 2-3 blood samples for different purposes (such as samples for immunoassay and samples in yellow tubes for chemical assays). Current procedures rely on manual differentiation and labeling of samples, and problems such as sample mismatch and labeling errors easily occur during the manual switching of blood collection tubes and recording of information. Third, the risk of sample confusion is high. The existing blood collection and retention technologies suffer from several drawbacks. First, they exhibit poor efficiency and sample volume stability. Approximately one-third of commercially available vacuum blood collection tubes suffer from insufficient negative pressure. Insufficient negative pressure leads to slow blood extraction and failure to reach the preset volume, impacting collection efficiency and potentially preventing normal testing due to insufficient sample volume. This necessitates repeat blood collection, increasing patient discomfort and medical costs. Second, sample quality control is low. Manual sample mixing relies heavily on operator experience and responsibility, and issues such as forgetting to mix, insufficient mixing force, or improper mixing methods can easily result in uneven mixing of the anticoagulant and blood, leading to blood coagulation, sample invalidation, and affecting the accuracy of test results. In summary, current blood collection and retention technologies suffer from significant drawbacks, including poor safety, susceptibility to confusion, low efficiency, and unstable sample quality, failing to meet the standardized, intelligent, and safe requirements of clinical medical procedures.

[0004] Therefore, there is an urgent need for an intelligent sample retention instrument that can avoid occupational exposure risks, prevent sample confusion, ensure stable blood sampling dosage, and enable standardized processing of anticoagulated samples, in order to solve the pain points of existing technologies and improve the safety, reliability and standardization of the blood sampling process. Summary of the Invention

[0005] The purpose of this application is to provide an intelligent sample retention device to solve the problems of poor safety, easy confusion, low efficiency, and unstable sample quality in the existing technology of blood collection and retention.

[0006] The embodiments of this application can be implemented through the following technical solutions: A smart sample retention device includes a peristaltic pump, a clamping mechanism, a sample tube holder, a mechanical transmission mechanism, and a bag housing, all mounted on the device body. The peristaltic pump is positioned above the clamping mechanism. The device body has a displacement groove extending along the Z-axis below the clamping mechanism. The mechanical transmission mechanism is located inside the device body, and one end of its rotating shaft passes through the displacement groove and is connected to the sample tube holder. Along the circumferential direction of the sample tube holder, a plurality of radially extending receiving grooves are provided on the outer circumferential surface of the sample tube holder, the receiving grooves being used to receive the sample tubes. Under the action of the mechanical transmission mechanism, the sample tube holder rotates or moves up and down along the Z-axis.

[0007] Furthermore, the delivery line of the sampling component is placed inside the peristaltic pump, and the needle handle of the sampling component is fixed in the slot of the clamping mechanism, so that the blood collection needle of the sampling component is set downward along the Z-axis, and the blood collection line is driven by the peristaltic pump to deliver blood components to the needle tip clamped in the clamping mechanism. At least one receiving slot of the sample tube holder contains a sample tube. The mechanical transmission mechanism drives the sample tube holder to rotate until the sample tube for pre-collected blood is aligned with the blood collection needle. Then, the mechanical transmission mechanism moves the sample tube aligned with the blood collection needle upward along the Z-axis until it is inserted into the blood collection needle. After collecting a sufficient amount of blood components, the mechanical transmission mechanism moves the sample tube downward along the Z-axis to the initial position. After all sample tubes have completed blood collection, the mechanical transmission mechanism drives the sample tube holder to rotate until the blood components in the sample tube are fully mixed with the sample processing reagent in the tube.

[0008] Furthermore, the blood component collection in the sample tube is achieved quantitatively by adjusting the rotation speed of the peristaltic pump or by detecting the collection liquid level in the sample tube using the detection unit.

[0009] Furthermore, the detection unit is located inside the machine body, and the sensing end of the detection unit passes through the displacement groove, corresponding to the preset liquid level of the sample tube fixed by the clamping mechanism. A signal feedback control mechanism is configured between the detection unit and the peristaltic pump.

[0010] Furthermore, the side of the machine body is equipped with a scanning unit and a printing unit. The scanning unit and the printing unit interact with each other via a PC. The scanning unit is used to scan and read the information on the surface label of the sampling component to complete the input and matching of sample information. The printing unit is used to print the print information set by the PC based on the collected scanning information.

[0011] Furthermore, the clamping mechanism has a clamping opening in the middle that extends along the Z-axis. The inner diameter of the clamping opening is adapted to the outer dimensions of the blood collection needle handle. Along the Y-axis, a placement opening is provided on the side of the clamping opening facing away from its mounting panel. Along the X-axis direction, spring plungers are embedded in both ends of the inner side of the clamping port, and one end of the spring plunger passes through the inner wall of the clamping port (21). Under the action of force, the spring plunger extends and retracts within the clamping port along the X-axis direction.

[0012] Furthermore, along the Y-axis direction, a magnetic post is provided on the inner side of the clamping opening. The magnetic post passes through the inner wall of the clamping opening along the Y-axis direction and extends and retracts towards the opening side of the clamping opening under the action of magnetic force.

[0013] Furthermore, the mechanical transmission mechanism includes a first support, a first driving device, a second driving device, and a displacement module, wherein the displacement module is a linear displacement module arranged along the Z-axis direction; The power output end of the second driving device is connected to the slider of the displacement module for driving the slider to perform reciprocating linear motion along the slide rail in the Z-axis direction. One end of the first bracket is connected to the slider of the displacement module, and the other end is fixedly connected to the body of the first driving device. The power output end of the first driving device passes through the clearance hole opened on the first bracket in the Y-axis direction and is connected to the center part of the sample tube holder for transmission, so that the second driving device can drive the slider of the displacement module to move up and down in the Z-axis direction, thereby driving the first bracket, the first driving device and the sample tube holder connected thereto to synchronously complete the displacement adjustment in the Z-axis direction.

[0014] Furthermore, the device is also equipped with a human-computer interaction display terminal, which has both operation input and information display functions.

[0015] The intelligent sample retention device provided in the embodiments of this application has at least the following beneficial effects: The peristaltic pump enables precise control of blood collection volume, effectively ensuring the consistency and accuracy of sample dosage. Combined with a mechanical transmission mechanism that drives the sample tube holder to achieve rotation and lifting movements with two degrees of freedom, it can efficiently complete multi-tube continuous sampling and sample mixing operations, significantly improving overall sample collection efficiency. Simultaneously, the equipment adopts an integrated structural design, simplifying the layout and reducing floor space. Furthermore, the fully automated operation effectively avoids errors caused by manual operation, ensuring the standardization and reliability of the sample collection process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an intelligent sample retention device according to this application; Figure 2 This is a schematic diagram of the clamping mechanism in this application; Figure 3 , Figure 4 These are schematic diagrams of the mechanical transmission mechanism in this application from different perspectives.

[0017] Numbers in the diagram S1-Body; S11-Displacement groove; S12-Detection unit; S13-Clamp; 1-Peristaltic pump; 2-Clamping mechanism; 20-Limiting hole; 21-Clamping port; 22-Spring plunger; 23-Magnetic column; 3-Sample tube holder; 31-Accommodation groove; 4-Mechanical transmission mechanism; 40-First support; 401-Avoidance hole; 402-Avoidance groove; 41-First drive device; 42-Second drive device; 43-Displacement module; 5-Bag body accommodating part; 51-Accommodating cavity; 52-Suspension part; 6-Scanning part; 7-Printing part; 8-Human-machine interaction display terminal. Detailed Implementation

[0018] The present application will now be further described based on preferred embodiments and with reference to the accompanying drawings.

[0019] Furthermore, for ease of understanding, various components on the drawings have been enlarged or reduced, but this is not intended to limit the scope of protection of this application.

[0020] Singular forms of words also include plural meanings, and vice versa.

[0021] In the description of the embodiments of this application, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, in the description of this application, in order to distinguish different units, the terms "first," "second," etc. are used in this specification, but these are not limited by the manufacturing order, nor should they be construed as indicating or implying relative importance. Their names may differ in the detailed description and claims of this application.

[0022] The vocabulary used in this specification is for illustrative purposes and is not intended to limit the scope of this application. It should also be noted that, unless otherwise expressly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection via an intermediate medium; or they can refer to the internal communication between two components. Those skilled in the art will understand the specific meaning of these terms in this application.

[0023] For ease of description, the vertical displacement direction of the sample tube holder 3 is defined as the Z-axis direction, the axial direction of its rotation axis is defined as the Y-axis direction, and the direction perpendicular to the YZ plane is defined as the X-axis direction. The X, Y, and Z axes are mutually perpendicular and together form a spatial orthogonal coordinate system.

[0024] like Figure 1 As shown, an intelligent sample retention device includes a peristaltic pump 1, a clamping mechanism 2, a sample tube holder 3, a mechanical transmission mechanism 4, and a bag housing 5, all mounted on a body S1. The peristaltic pump 1 is positioned above the clamping mechanism 2. The body S1 has a displacement groove S11 extending along the Z-axis below the clamping mechanism 2. The mechanical transmission mechanism 4 is located inside the body S1, and one end of its rotating shaft passes through the displacement groove S11 and connects to the sample tube holder 3. Along the circumferential direction of the sample tube holder 3, a plurality of radially extending receiving grooves 31 are formed on the outer circumferential surface of the sample tube holder 3. The receiving grooves 31 are used to hold the sample tubes.

[0025] Under the action of the mechanical transmission mechanism 4, the sample tube holder 3 rotates around its rotation axis or moves up and down along the Z-axis. By rotating, the sample tube on one of the receiving slots 31 is aligned with the lower part of the clamping mechanism 2 or the anticoagulated blood in each of the sample tubes is shaken evenly. By moving up and down, the sample tube on one of the receiving slots 31 is inserted into the blood collection needle held by the clamping mechanism 2 or separated from the blood collection needle held by the clamping mechanism 2.

[0026] In some preferred embodiments, the bag housing 5 is disposed on one side of the body S1. The bag housing 5 includes a housing cavity 51 and a suspension part 52. The top of the housing cavity 51 is open for placing other bags of the sampling assembly. The suspension part 52 is used to suspend the sampling bag of the sampling assembly.

[0027] In some preferred embodiments, the peristaltic pump 1 is disposed in the tubing connecting the sampling bag to the blood collection needle of the sampling assembly, and is used to transfer the component blood in the blood collection bag to the sampling tube through the peristaltic pump 1, effectively avoiding insufficient collection of component blood due to insufficient vacuum in the sampling tube.

[0028] In some preferred embodiments, the body S1 is further provided with a detection unit S12. The sensing head of the detection unit S12 is embedded in the displacement groove S11, and its sensing end passes through the displacement groove S11 and corresponds to the preset liquid level of the sample tube fixed by the clamping mechanism 2, so as to monitor whether the blood component in the sample tube has been collected in sufficient quantity.

[0029] In some preferred embodiments, quantitative collection of blood components is achieved by either detecting the liquid level in the sample tube using the detection unit S12 or by controlling a preset fixed rotation speed of the peristaltic pump 1. For example, when using the detection unit S12 for monitoring, the detection unit S12 monitors the liquid level of the blood components in the sample tube in real time through the sensor head to determine whether the sample has been collected. Once the preset collection volume is reached, the detection unit S12 immediately sends a stop signal to the peristaltic pump 1 to control it to stop operating.

[0030] The two quantitative control methods mentioned above can be selected. When the label on the outer wall of the sample tube obstructs the sensor head and causes the liquid level detection function to fail, the peristaltic pump 1 revolution control mode can be switched to ensure that the blood components in the sample tube can always be collected to a sufficient standard, effectively avoiding the limitations of a single detection method.

[0031] In some preferred embodiments, such as Figure 2As shown, the clamping mechanism 2 has a clamping opening 21 extending along the Z-axis in the middle. The inner diameter of the clamping opening 21 is adapted to the outer dimensions of the blood collection needle handle. Along the Y-axis, the clamping opening 21 has a placement opening on the side facing away from its mounting panel, for placing the needle handle into the clamping opening 21 along the Y-axis.

[0032] In some preferred embodiments, along the X-axis direction, spring plungers 22 are embedded at both ends of the inner side of the clamping port 21, and one end of the spring plunger 22 passes through the inner wall of the clamping port 21. Under the action of force, the spring plunger 22 extends and retracts within the clamping port 21 along the X-axis direction. After the needle handle is placed in the clamping port 21, the spring plunger 22 can apply a force to the needle handle from the side to firmly fix the needle handle within the clamping port 21.

[0033] In some preferred embodiments, a magnetic post 23 is provided on the inner side of the clamping port 21 along the Y-axis. The magnetic post 23 passes through the inner wall of the clamping port 21 along the Y-axis and extends and retracts towards the opening side of the clamping port 21 along the Y-axis under the action of magnetic force, so as to achieve a stable fixation of the blood collection needle. When it is necessary to remove the blood collection needle, the magnetic post 23 pushes the needle handle away from the clamping action of the spring plunger under the action of magnetic force, and it can be easily removed without the need for additional operation buttons, which improves the convenience and efficiency of blood collection needle installation and removal.

[0034] In some preferred embodiments, the seat of the clamping mechanism 2 has two limiting holes 20 extending along the X-axis. The two limiting holes are respectively located on both sides of the clamping opening 21 and communicate with the clamping opening 21. The spring plunger 22 includes a spring and a steel ball. One end of the spring is limited in the limiting hole 20, and the other end cooperates with the steel ball. Under the action of the spring, the steel ball abuts against the limiting hole 20 adjacent to the clamping opening 21 along the X-axis and partially protrudes outside the limiting hole 20 to apply force to the needle handle.

[0035] In some preferred embodiments, such as Figure 3 , Figure 4 As shown, the mechanical transmission mechanism 4 includes a first support 40, a first drive device 41, a second drive device 42, and a displacement module 43. The displacement module 43 is a linear displacement module arranged along the Z-axis direction, which includes a matching slide rail and a slider. The slide rail is fixed to a preset mounting position on the body S1, and the slider and the slide rail form a sliding fit.

[0036] In some preferred embodiments, the power output end of the second driving device 42 is connected to the slider of the displacement module 43 for driving the slider to perform reciprocating linear motion along the slide rail in the Z-axis direction. One end of the first bracket 40 is rigidly connected to the slider of the displacement module 43, and the other end is fixedly connected to the body of the first driving device 41. The power output end of the first driving device 41 passes through the clearance hole 401 opened on the first bracket 40 along the Y-axis direction and is connected to the center part of the sample tube holder 3 for transmission, so that the second driving device 42 can drive the slider of the displacement module 43 to move up and down along the Z-axis direction, thereby driving the first bracket 40, the first driving device 41 and the sample tube holder 3 connected thereto to complete the displacement adjustment in the Z-axis direction simultaneously.

[0037] In some preferred embodiments, the first support 40 is provided with a clearance groove 402 extending along the Z direction, and the sensing head of the detection unit S12 passes through the clearance groove 402 along the Y-axis direction to correspond with the sample retention tube.

[0038] In some preferred embodiments, the side of the body S1 is provided with a scanning unit 6 and a printing unit 7. The scanning unit 6 and the printing unit 7 interact with each other via a PC. The scanning unit 6 is used to scan and read the information of the label on the surface of the sampling component to complete the rapid input and matching of sample information. The printing unit 7 sets the printing information according to the scanning information collected by the PC and prints the sample label corresponding to the sampling information.

[0039] The specific operation process is as follows: Operators can pre-set the collection information corresponding to the sampling component label through the PC terminal, and at the same time set the number of sample tubes to be dispensed. The system will automatically generate the corresponding number of sample labels according to the preset parameters, and the printing unit 7 will then complete the label printing. Operators only need to paste the printed sample labels one by one onto the surface of the corresponding sample tube to complete the information marking of the sample tube, effectively avoiding the information mismatch problem caused by manual marking.

[0040] In some preferred embodiments, the body S1 is also equipped with a human-machine interaction display terminal 8, which has both operation input and information display functions. It can realize operations such as setting equipment operating parameters, controlling the sampling process, visualizing the sample retention progress, and prompting fault alarms. At the same time, it supports extended functions such as real-time data query, retrieval of historical sampling records, and system parameter calibration. Operators can complete the entire process control of the intelligent sample retention instrument through this terminal without the need for additional external control equipment.

[0041] In some preferred embodiments, a clamp S13 is also fixedly connected to the body S1. The clamp S13 has a slot in the middle that runs through the pipeline. The clamp S13 is installed at a position corresponding to the pipeline connection section between the peristaltic pump 1 and the clamping mechanism 2. By embedding the pipeline in the slot, the pipeline between the peristaltic pump 1 and the clamping mechanism 2 can be limited and fixed, preventing the pipeline from shifting or bending due to equipment vibration or external force, thus ensuring the smooth flow of blood.

[0042] Taking one preferred operation step as an example, the specific operation steps are as follows: place the sampling component in the bag receiving part 5, place the delivery tube of the sampling component in the peristaltic pump 1, and place the needle handle in the slot of the clamping mechanism 2 for fixation, so that the blood collection needle of the sampling component is set downward along the Z-axis, place the bag information of the sampling component at the scanning part 6 for scanning, and set the sample retention information through the PC terminal. The printing part 7 prints the preset sample retention information, affixes the printed sample retention information to the surface of the sample tube, and places each sample tube in the receiving slot 31 of the sample tube holder 3.

[0043] The device is started. The first drive device 41 drives the sample tube holder 3 to rotate until one of the sample tubes is positioned below the sampling needle. The second drive device 42 drives the sample tube holder 3 to move upward until the sample tube is inserted into the sampling needle for component blood collection. Based on the rotation speed of the peristaltic pump 1 or the detection unit S12, when sufficient component blood is collected, the peristaltic pump 1 stops rotating. The second drive device 42 drives the sample tube holder 3 to move downward to the initial position. The first drive device 41 drives the sample tube holder 3 to rotate until the next sample tube to be collected is positioned below the sampling needle, and the component blood collection of the second sample tube is completed. After all sample tubes have completed component blood collection, the first drive device 41 drives the sample tube holder 3 to rotate until the component blood in all sample tubes is fully mixed with the anticoagulant in the tube.

[0044] Preferably, after all operations are completed, the bag information of the adopted component is scanned at the scanning unit 6, and the sample retention information is set through the PC. The printing unit 7 prints the preset sample retention information, and the printed sample retention information is affixed to the surface of the sample tube after the shaking process. This prevents improper labeling of the sample retention information from causing the detection unit S12 to fail to detect the liquid level in the sample tube.

[0045] It should be added that the above is just one of the preferred operation steps as an example, and is not intended to limit the scope of protection of this application.

[0046] The specific embodiments of this application have been described in detail above. For those skilled in the art, several improvements and modifications can be made to this application without departing from the principle of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. An intelligent sample retention device, characterized in that: The device includes a peristaltic pump (1), a clamping mechanism (2), a sample tube holder (3), a mechanical transmission mechanism (4), and a bag housing (5) mounted on the body (S1). The peristaltic pump (1) is mounted above the clamping mechanism (2). The body (S1) has a displacement groove (S11) extending along the Z-axis below the clamping mechanism (2). The mechanical transmission mechanism (4) is mounted inside the body (S1), and one end of its rotating shaft passes through the displacement groove (S11) and is connected to the sample tube holder (3). Along the circumferential direction of the sample tube holder (3), a plurality of radially extending receiving grooves (31) are provided on the outer circumferential surface of the sample tube holder (3), and the receiving grooves (31) are used to receive the sample tube. Under the action of the mechanical transmission mechanism (4), the sample tube holder (3) rotates or moves up and down along the Z-axis.

2. The intelligent sample retention device according to claim 1, characterized in that: The delivery pipeline of the sampling component is placed inside the peristaltic pump (1), and the needle handle of the sampling component is placed in the slot of the clamping mechanism (2) for fixation, so that the blood collection needle of the sampling component is set downward along the Z-axis, and the blood collection pipeline is driven by the peristaltic pump (1) to deliver component blood to the needle head clamped in the clamping mechanism (2). A sample tube is placed in at least one receiving slot (31) of the sample tube holder (3). The mechanical transmission mechanism (4) drives the sample tube holder (3) to rotate until the sample tube for pre-collected blood is aligned with the blood collection needle. Then, the mechanical transmission mechanism (4) moves the sample tube aligned with the blood collection needle upward along the Z-axis until it is inserted into the blood collection needle. After collecting a sufficient amount of blood components, the mechanical transmission mechanism (4) drives the sample tube to move downward along the Z-axis to the initial position. After all the sample tubes have completed blood collection, the mechanical transmission mechanism (4) drives the sample tube holder (3) to rotate until the blood components in the sample tube are fully mixed with the sample processing reagent in the tube.

3. The intelligent sample retention device according to claim 1, characterized in that: The blood components in the sample tube are collected quantitatively by the rotation of the peristaltic pump (1) or by detecting the collection liquid level in the sample tube according to the detection unit (S12).

4. The intelligent sample retention device according to claim 3, characterized in that: The detection unit (S12) is located inside the body (S1). The sensing end of the detection unit (S12) passes through the displacement groove (S11) and corresponds to the preset liquid level of the sample tube fixed by the clamping mechanism (2). A signal feedback control mechanism is configured between the detection unit (S12) and the peristaltic pump (1).

5. The intelligent sample retention device according to claim 1, characterized in that: The side of the body (S1) is equipped with a scanning unit (6) and a printing unit (7). The scanning unit (6) and the printing unit (7) interact with each other via a PC. The scanning unit (6) is used to scan and read the information of the surface label of the sampling component to complete the input and matching of sample information. The printing unit (7) is used to print the printing information set by the PC based on the collected scanning information.

6. The intelligent sample retention device according to claim 1, characterized in that: The clamping mechanism (2) has a clamping opening (21) that runs through the Z-axis in the middle. The inner diameter of the clamping opening (21) is adapted to the outer dimensions of the blood collection needle handle. Along the Y-axis, the clamping opening (21) has a placement opening on the side facing away from its mounting panel. Along the X-axis direction, spring plungers (22) are embedded in both ends of the inner side of the clamping port (21), and one end of the spring plunger (22) passes through the inner wall of the clamping port (21). Under the action of force, the spring plunger (22) extends and retracts within the clamping port (21) along the X-axis direction.

7. The intelligent sample retention device according to claim 1, characterized in that: Along the Y-axis direction, a magnetic post (23) is provided on the inner side of the clamping port (21). The magnetic post (23) passes through the inner wall of the clamping port (21) along the Y-axis direction and extends and retracts towards the opening side of the clamping port (21) along the Y-axis direction under the action of magnetic force.

8. The intelligent sample retention device according to claim 1, characterized in that: The mechanical transmission mechanism (4) includes a first support (40), a first drive device (41), a second drive device (42), and a displacement module (43). The displacement module (43) is a linear displacement module arranged along the Z-axis. The power output end of the second drive device (42) is connected to the slider of the displacement module (43) for driving the slider to make reciprocating linear motion along the slide rail in the Z-axis direction. One end of the first bracket (40) is connected to the slider of the displacement module (43), and the other end is fixedly connected to the body of the first drive device (41). The power output end of the first drive device (41) passes through the clearance hole (401) opened on the first bracket (40) along the Y-axis direction and is connected to the center part of the sample tube holder (3) for transmission, so that the second drive device (42) can drive the slider of the displacement module (43) to move up and down along the Z-axis direction, thereby driving the first bracket (40), the first drive device (41) and the sample tube holder (3) connected thereto to complete the displacement adjustment in the Z-axis direction simultaneously.

9. The intelligent sample retention device according to claim 1, characterized in that: The body (S1) is also equipped with a human-computer interaction display terminal (8), which has both operation input and information display functions.

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