Medical examination sampling device and use method

Abstract

The invention belongs to the field of medical examination equipment, and provides a medical examination sampling device and a use method.The medical examination sampling device comprises a sampling table, a fixed baffle is fixedly installed on the edge of the upper surface of the sampling table, an operation window is formed in the bottom of one end of the fixed baffle, and a fixed groove is formed in the middle of the top end of the sampling table; the conveying mechanism comprises supporting rollers, the supporting rollers are symmetrically and rotationally installed on the two side edges of the inner wall of the fixing groove, the outer surfaces of the supporting rollers are sleeved with a conveying belt, a stepping motor is installed in the middle of one end of each supporting roller, positioning assemblies are arranged on the outer surface of the conveying belt at certain intervals, and limiting clamping pipes are installed on the portions, in the positioning assemblies, of the outer surface of the conveying belt. By means of the automatic separating and collecting structure (the connecting rotary disc, the fixing clamping sleeve and the collecting box), non-contact recycling of blood sampling parts is achieved, direct contact between medical workers and blood samples and sharp tools is reduced, and occupational exposure risks are remarkably reduced.

Description

Technical Field

[0001] The present invention belongs to the field of medical testing equipment, in particular to a medical testing sampling device and a use method thereof. Background Art

[0002] Blood sampling in medical testing involves obtaining a blood sample from the human body through venous puncture or other methods for various tests. The current process typically involves venous puncture, insertion of a blood collection tube, negative pressure blood collection, and needle removal to stop bleeding. The core of this process is to utilize the negative pressure of vacuum blood collection tubes to collect blood. This technology relies on medical staff to manually perform the following operations: inserting the blood collection tube after puncture and separating the tube from the needle. The vacuum negative pressure allows for the automated extraction and collection of blood.

[0003] However, in the existing technology, medical staff need to directly contact the rubber stopper and needle of the blood collection tube when separating the blood collection tube and the syringe, which not only increases the chance of contact between the hands and blood samples and sharp instruments, but also has significant problems: First, the risk of biological contamination is high. Blood splashing or residual blood dripping from the needle can easily cause medical staff to come into contact with the source of contamination. In particular, the risk of occupational exposure is prominent when handling samples from patients with infectious diseases. There are more than one million cases of blood-borne infection caused by contact with contaminated needles each year worldwide; second, the operation efficiency is low. Manual separation requires the cooperation of both hands. A single operation consumes a certain amount of time. The cumulative time for batch blood collection is relatively high, and it is easy to cause fatigue to medical staff; third, there are hidden dangers in sample quality. Manual operation may cause rubber stopper debris to fall off or residual blood from the needle to mix into the sample due to uneven force, resulting in contamination or cross-mixing, affecting the accuracy of the test results. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a medical test sampling device and a method of use to solve the problem that medical staff are easily contaminated by blood when collecting blood samples in the prior art.

[0005] A medical test sampling device includes a sampling platform, a fixed baffle fixedly mounted on the edge of the upper surface of the sampling platform, an operation window formed at the bottom of one end of the fixed baffle, a fixed groove formed in the middle of the top of the sampling platform, and a conveying mechanism disposed inside the fixed groove;

[0006] The conveying mechanism includes support rollers, which are symmetrically rotatably mounted on both sides of the inner wall of the fixed groove, and a conveyor belt is sleeved on the outer surface of the support roller. A stepping motor is installed in the middle of one end of each support roller. Positioning components are provided on the outer surface of the conveyor belt at a certain interval. A limit clamp tube is installed on the outer surface of the conveyor belt in the positioning component. A blood collection needle is installed on one side of the limit clamp tube, and a vacuum tube connector is fixed to the other side of the limit clamp tube. A collection structure is also provided on the upper surface of the sampling platform near the edge of the conveyor belt for taking out and collecting the used limit clamp tube;

[0007] The collecting structure includes a placement slot, which is symmetrically opened on the upper surface of the sampling table near the edge of the fixed slot, a driving pulley is rotatably installed inside the placement slot, a support plate is fixedly installed on the upper surface of the sampling table near the opening of the placement slot, a driven pulley is rotatably installed on the top of one end of the support plate, a connecting belt is sleeved on the outer surfaces of the driving pulley and the driven pulley, a connecting turntable is fixedly connected to the middle of one end of the driven pulley, a plurality of fixed ferrules are fixedly installed on the edge of one end of the connecting turntable, a collecting box is provided on the upper surface of the sampling table near the connecting turntable, and a feeding mechanism is also provided at the position corresponding to the operation window on the upper surface of the sampling table.

[0008] Preferably, the positioning assembly includes a positioning card, which is symmetrically and movably arranged on the outer surface of the conveyor belt, a fixed slot is provided in the middle of one side of the inner wall of the positioning card, and elastic protective pads are fixed to the front and rear ends of the positioning card. Fixed brackets are fixedly installed on the outer surface of the conveyor belt near the front and rear ends of the positioning card, an inner groove is provided on the top of one side of the fixed bracket, and a connecting rod is symmetrically welded to one side of the outer surface of the positioning card, and a spring is installed on one side of the connecting rod extending to the inside of the inner groove.

[0009] Preferably, the feeding mechanism includes an electric telescopic rod, which is arranged in the middle position of the upper surface of the sampling platform, a placement rack is installed at the output end of the electric telescopic rod, a placement groove is opened in the middle of the top of the placement rack, and a vacuum blood collection tube is placed inside the placement groove, a storage rack is fixedly installed on the upper surface of the sampling platform near the electric telescopic rod, a guide plate is obliquely arranged at the bottom end outlet of the storage rack, a movable pressure plate is movably installed at the top opening of the storage rack, and a connecting card is fixedly installed on the upper surface of the movable pressure plate.

[0010] Preferably, a number of vacuum blood collection tubes are placed inside the storage rack, and a reset baffle is installed on the bottom opening of the storage rack, which is back to the guide plate and rotatably mounted via a bearing. The front and rear ends of the reset baffle are located on the outer surface of the hinge shaft and are provided with torsion springs.

[0011] Preferably, a placement pad is fixedly installed on the upper surface of the sampling table near the operation window, an equipment bracket is provided on the upper surface of the sampling table near the edge of the operation window, an ultrasonic scanning sensor is installed on the top of the inner surface of the equipment bracket, and an OLED display screen is installed on the top of the outer surface of the equipment bracket.

[0012] Preferably, a fixing part is fixedly installed on the upper surface of the sampling table near one side edge of the placement pad, and an elastic strap is provided on the outer surface of the fixing part. A limiting part is fixedly installed on the upper surface of the sampling table near the other side edge of the placement pad, and one side edge of the elastic strap passes through the limiting part and is connected to the arm.

[0013] Preferably, the front and rear end edges of the limiting clamp tube extend to the outside of the positioning clamp, the middle part of one side of the outer surface of the limiting clamp tube is located inside the fixed clamp groove, and the limiting clamp tube and the fixed clamp groove are engaged with each other.

[0014] Preferably, a sealing hole is opened in the middle of one end of the vacuum blood collection tube, and an edge of one end of the vacuum tube connector passes through the sealing hole and extends into the interior of the vacuum blood collection tube, and the vacuum tube connector and the sealing hole are adapted to each other.

[0015] A method for using a medical test sampling device comprises the following steps:

[0016] S1. Equipment Preparation: Place the vacuum blood collection tubes in the storage rack and secure the movable pressure plate with the connecting clamps to ensure the vacuum blood collection tubes are arranged in order. Start the stepper motor, causing the conveyor belt to drive the positioning assembly and the limit clamp tube in a circular motion.

[0017] S2. Sample Positioning: The patient's arm is placed on a placement pad and secured with an elastic strap. An ultrasound sensor scans the vein location, and an OLED display displays the vascular image, assisting medical staff in determining the puncture point.

[0018] S3. Blood Collection Operation: The electric telescopic rod pushes the placement rack, allowing the vacuum blood collection tube to pass through the guide plate and into the conveyor mechanism. The vacuum tube connector is inserted into the sealed hole of the vacuum blood collection tube. The blood collection needle is stabilized in the fixed slot of the positioning assembly. The medical staff punctures the vein through the operating window, and blood flows into the vacuum blood collection tube under the action of negative pressure.

[0019] S4. Automatic Separation and Collection: After blood collection is complete, the conveyor belt transports the used limited-position clamp tube to the collection mechanism. The active pulley, via the connecting belt, drives the driven pulley and the connecting turntable to rotate. The fixed clamping sleeve locks the limited-position clamp tube into the collection box, achieving automatic separation and collection, preventing medical staff from direct contact with contaminated components.

[0020] S5. Disinfection and reset: After the equipment is finished running, the positioning components, conveying mechanism, etc. are automatically or manually disinfected, and each component is reset to its initial state to prepare for the next sampling.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention realizes contactless recovery of blood collection components through automatic separation and collection structure (connecting turntable, fixed ferrule, collection box), reduces direct contact between medical staff and blood samples and sharp instruments, and significantly reduces occupational exposure risks.

[0023] 2. The present invention realizes full process automation through the linkage of the conveying mechanism (support rollers, conveyor belts, stepper motors) and the feeding mechanism (electric telescopic rods, storage racks, guide plates), shortens the time for single blood collection, and is particularly suitable for batch blood collection scenarios, reducing the fatigue of medical staff and improving work efficiency.

[0024] 3. The present invention ensures the stability of the blood collection needle through positioning components (positioning clips, springs, and fixed slots), avoiding sample contamination caused by manual operation; ultrasonic assisted positioning (ultrasonic scanning sensor, OLED display) improves puncture accuracy, reduces the risk of hemolysis or coagulation, and ensures accurate test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic structural diagram of the upper surface of the sampling platform of the present invention;

[0027] Figure 3 Schematic diagram of the structure of the conveyor belt in the present invention;

[0028] Figure 4 It is a structural schematic diagram of the storage rack in the present invention;

[0029] Figure 5 Schematic diagram of the structure of the ultrasonic scanning sensor in the present invention;

[0030] Figure 6 Schematic diagram of the internal structure of the fixing bracket in the present invention;

[0031] Figure 7 It is a structural schematic diagram of the connecting turntable in the present invention;

[0032] Figure 8 Schematic diagram of the operation process of the present invention.

[0033] In the picture:

[0034] 1. Sampling station; 2. Fixed baffle; 3. Operation window; 4. Fixed slot; 5. Support roller; 6. Conveyor belt; 7. Stepper motor; 8. Positioning clamp; 9. Fixed slot; 10. Elastic protective pad; 11. Fixed bracket; 12. Inner slot; 13. Connecting support rod; 14. Spring; 15. Limit clamp tube; 16. Blood collection needle; 17. Vacuum tube connector; 18. Placement slot; 19. Driving pulley; 20. Support plate; 21. Driven pulley; 22. Connecting pulley Belt; 23. Connecting turntable; 24. Fixed card sleeve; 25. Collection box; 26. Electric telescopic rod; 27. Placement rack; 28. Placement groove; 29. ​​Vacuum blood collection tube; 30. Storage rack; 31. Guide plate; 32. Movable pressure plate; 33. Connecting card; 34. Reset baffle; 35. Torsion spring; 36. Placement pad; 37. Equipment bracket; 38. Ultrasonic scanning sensor; 39. OLED display; 40. Fixing part; 41. Elastic strap; 42. Limiting part. DETAILED DESCRIPTION

[0035] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0036] Example 1:

[0037] As attached Figure 1 To the attached Figure 7 As shown:

[0038] The present invention provides a medical test sampling device, comprising a sampling platform 1, a fixed baffle 2 fixedly mounted on the edge of the upper surface of the sampling platform 1, an operating window 3 is provided at the bottom of one end of the fixed baffle 2, a fixed groove 4 is provided in the middle of the top of the sampling platform 1, and a conveying mechanism is provided inside the fixed groove 4;

[0039] The conveying mechanism includes support rollers 5, which are symmetrically mounted on the edges of the inner wall of the fixed groove 4. A conveyor belt 6 is sleeved on the outer surface of the support rollers 5. A stepper motor 7 is installed in the middle of one end of a single support roller 5. Positioning components are arranged at a certain interval on the outer surface of the conveyor belt 6. A limit clamping tube 15 is installed on the outer surface of the conveyor belt 6 in the positioning component. A blood collection needle 16 is installed on one side of the limit clamping tube 15, and a vacuum tube connector 17 is fixed to the other side of the limit clamping tube 15. A collection structure is also provided on the upper surface of the sampling station 1 near the edge of the conveyor belt 6 for taking out and collecting the used limit clamping tube 15;

[0040] The collecting structure includes a placement slot 18, which is symmetrically arranged on the upper surface of the sampling platform 1 near the edge of the fixed slot 4. A driving pulley 19 is rotatably installed inside the placement slot 18, and a support plate 20 is fixedly installed on the upper surface of the sampling platform 1 near the opening of the placement slot 18. A driven pulley 21 is rotatably installed on the top of one end of the support plate 20. A connecting belt 22 is sleeved on the outer surfaces of the driving pulley 19 and the driven pulley 21. A connecting turntable 23 is fixedly connected to the middle of one end of the driven pulley 21, and a number of fixed ferrules 24 are fixedly installed on the edge of one end of the connecting turntable 23. A collecting box 25 is provided on the upper surface of the sampling platform 1 near the connecting turntable 23, and a feeding mechanism is also provided at the position corresponding to the operation window 3 on the upper surface of the sampling platform 1.

[0041] As can be seen from the above, in the conveying mechanism, the support roller 5 is symmetrically mounted in the fixed groove 4, and the conveyor belt 6 is sleeved thereon. The stepper motor 7 drives the support roller 5 to rotate, driving the conveyor belt 6 to circulate. The positioning clamp 8 of the positioning assembly is elastically connected to the fixed bracket 11 through the spring 14 and the connecting support rod 13. The limit clamp tube 15 is engaged in the fixed clamp groove 9 and moves with the conveyor belt 6. When drawing blood, the blood collection needle 16 punctures the vein, the vacuum tube connector 17 is inserted into the vacuum blood collection tube 29, and the blood flows in under negative pressure. In the collection structure, the active pulley 19 rotates, driving the driven pulley 21 and the connecting turntable 23 through the connecting belt 22, and the fixed clamping sleeve 24 grabs the used limit clamp tube 15 and sends it to the collection box 25, realizing automatic separation and recycling to prevent medical staff from contacting contaminated components.

[0042] Reference Figure 3 and Figure 6 The positioning assembly includes a positioning card 8, which is symmetrically and movably arranged on the outer surface of the conveyor belt 6. A fixed slot 9 is opened in the middle of one side of the inner wall of the positioning card 8. Elastic protective pads 10 are fixed to the front and rear end edges of the positioning card 8. A fixed bracket 11 is fixedly installed on the outer surface of the conveyor belt 6 near the front and rear end edges of the positioning card 8. An inner groove 12 is opened on the top of one side of the fixed bracket 11. A connecting support rod 13 is symmetrically welded on one edge of the outer surface of the positioning card 8. One side edge of the connecting support rod 13 extends to the inside of the inner groove 12 and a spring 14 is installed. The front and rear end edges of the limiting card tube 15 extend to the outside of the positioning card 8. The middle part of one side of the outer surface of the limiting card tube 15 is located inside the fixed slot 9, and the limiting card tube 15 and the fixed slot 9 are engaged with each other.

[0043] As can be seen from the above, the elastic protective pad 10 and the spring 14 of the positioning assembly buffer the vibration of the limit clamping tube 15, and the fixed clamping slot 9 ensures the stability of the needle position and improves the puncture accuracy.

[0044] Reference Figure 3 and Figure 5A placement pad 36 is fixedly installed on the upper surface of the sampling table 1 near the operation window 3, and an equipment bracket 37 is provided on the upper surface of the sampling table 1 near the edge of the operation window 3. An ultrasonic scanning sensor 38 is installed on the top of the equipment bracket 37, and an OLED display screen 39 is installed on the top of the outer surface of the equipment bracket 37. A fixing part 40 is fixedly installed on the edge of one side of the upper surface of the sampling table 1 near the placement pad 36, and an elastic strap 41 is sleeved on the outer surface of the fixing part 40. A limiting part 42 is fixedly installed on the other side of the upper surface of the sampling table 1 near the placement pad 36, and one side edge of the elastic strap 41 passes through the limiting part 42 and is sleeved on the arm.

[0045] As can be seen above, the device bracket 37 supports the ultrasonic scanning sensor 38 and the OLED display 39. The integrated design enables coordinated positioning and puncture operations. The fixing member 40 and the limiter 42 constrain the elastic strap 41 to ensure a secure arm fixation, improving operational safety and comfort.

[0046] Example 2:

[0047] Reference Figure 2 and Figure 4 The feeding mechanism includes an electric telescopic rod 26, which is arranged in the middle position of the upper surface of the sampling platform 1. A placement rack 27 is installed at the output end of the electric telescopic rod 26. A placement groove 28 is opened in the middle of the top of the placement rack 27, and a vacuum blood collection tube 29 is placed inside the placement groove 28. A storage rack 30 is fixedly installed on the upper surface of the sampling platform 1 near the electric telescopic rod 26. A guide plate 31 is obliquely arranged at the bottom outlet of the storage rack 30. A movable pressing plate 32 is movably installed at the top opening of the storage rack 30. A connecting clip 33 is fixedly installed on the upper surface of the movable pressing plate 32. A sealing hole is opened in the middle of one end of the vacuum blood collection tube 29. The edge of one end of the vacuum tube connector 17 passes through the sealing hole and extends into the interior of the vacuum blood collection tube 29. The vacuum tube connector 17 and the sealing hole are adapted to each other.

[0048] As can be seen above, in the feeding mechanism, the electric telescopic rod 26 pushes the placement rack 27, and the vacuum blood collection tube 29 slides down from the storage rack 30 along the guide plate 31 into the placement groove 28. A reset plate 34 and a torsion spring 35 control the release of the blood collection tubes one by one, preventing accumulation. The vacuum tube connector 17 fits into the sealing hole of the blood collection tube, ensuring a tight seal for negative pressure blood collection. Blood flows through the vacuum tube connector 17 into the blood collection tube, completing the sampling process.

[0049] Reference Figure 4 A number of vacuum blood collection tubes 29 are placed inside the storage rack 30. The bottom opening of the storage rack 30 is back to the guide plate 31 and a reset baffle 34 is installed through a bearing. The front and rear ends of the reset baffle 34 are located on the outer surface of the hinge shaft and a torsion spring 35 is installed.

[0050] As can be seen above, the vacuum blood collection tubes 29 in the storage rack 30 are automatically fed into the conveyor mechanism through gravity and the elastic reset of the reset baffle 34, achieving automated loading. The movable pressure plate 32 and connecting clamp 33 secure the blood collection tubes, preventing them from swaying within the storage rack 30 and ensuring a stable feeding process. The inclined design of the guide plate 31 guides the blood collection tubes accurately into the vacuum tube connector 17, improving the automation level and sampling efficiency of the equipment.

[0051] Example 3:

[0052] As attached Figure 8 As shown:

[0053] A method for using a medical test sampling device comprises the following steps:

[0054] S1. Equipment Preparation: Place the vacuum blood collection tubes in the storage rack and secure the movable pressure plate with the connecting clamps to ensure the vacuum blood collection tubes are arranged in order. Start the stepper motor, causing the conveyor belt to drive the positioning assembly and the limit clamp tube in a circular motion.

[0055] S2. Sample Positioning: The patient's arm is placed on a placement pad and secured with an elastic strap. An ultrasound sensor scans the vein location, and an OLED display displays the vascular image, assisting medical staff in determining the puncture point.

[0056] S3. Blood Collection Operation: The electric telescopic rod pushes the placement rack, allowing the vacuum blood collection tube to pass through the guide plate and into the conveyor mechanism. The vacuum tube connector is inserted into the sealed hole of the vacuum blood collection tube. The blood collection needle is stabilized in the fixed slot of the positioning assembly. The medical staff punctures the vein through the operating window, and blood flows into the vacuum blood collection tube under the action of negative pressure.

[0057] S4. Automatic Separation and Collection: After blood collection is complete, the conveyor belt transports the used limited-position clamp tube to the collection mechanism. The active pulley, via the connecting belt, drives the driven pulley and the connecting turntable to rotate. The fixed clamping sleeve locks the limited-position clamp tube into the collection box, achieving automatic separation and collection, preventing medical staff from direct contact with contaminated components.

[0058] S5. Disinfection and reset: After the equipment is finished running, the positioning components, conveying mechanism, etc. are automatically or manually disinfected, and each component is reset to its initial state to prepare for the next sampling.

[0059] Working Principle: First, vacuum blood collection tubes 29 in storage rack 30 are sequentially fed into the conveying mechanism through gravity and a reset baffle 34. The motorized telescopic rod 26 precisely pushes the tubes, ensuring accurate docking with the vacuum tube connector 17. Second, an ultrasonic scanning sensor 38 provides real-time imaging, an OLED display 39 guides puncture, and an elastic strap 41 secures the arm for improved stability. The elastic design of the positioning assembly (spring 14, elastic protective pad 10) cushions the blood collection needle 16 during puncture, minimizing vascular damage. Finally, a conveyor belt 6 delivers the used, limited-position tube 15 to the collection mechanism, where the fixed sleeve 24 connected to the turntable 23 automatically grabs and places it in the collection box 25, preventing human contact and contamination. These components work together to achieve synchronized action, ensuring an efficient and stable process.

[0060] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A medical test sampling device, comprising a sampling platform (1), wherein a fixed baffle (2) is fixedly mounted on the edge of the upper surface of the sampling platform (1), and an operating window (3) is provided at the bottom of one end of the fixed baffle (2), characterized in that: A fixing groove (4) is provided in the middle of the top of the sampling platform (1), and a conveying mechanism is provided inside the fixing groove (4); The conveying mechanism includes a supporting roller (5), which is symmetrically rotatably mounted on both sides of the inner wall of the fixed groove (4), and a conveyor belt (6) is sleeved on the outer surface of the supporting roller (5). A stepping motor (7) is mounted in the middle of one end of a single supporting roller (5). Positioning components are arranged on the outer surface of the conveyor belt (6) at a certain interval. A limit clamping tube (15) is mounted on the outer surface of the conveyor belt (6) in the positioning component. A blood collection needle (16) is mounted on one side of the limit clamping tube (15), and a vacuum tube connector (17) is fixedly connected to the other side of the limit clamping tube (15). A collection structure is also provided on the upper surface of the sampling platform (1) near the edge of the conveyor belt (6) for taking out and collecting the used limit clamping tube (15); The collecting structure comprises a placement groove (18), the placement groove (18) is symmetrically opened on the upper surface of the sampling platform (1) near the edge of the fixed groove (4), a driving pulley (19) is rotatably installed inside the placement groove (18), a support plate (20) is fixedly installed on the upper surface of the sampling platform (1) near the opening of the placement groove (18), a driven pulley (21) is rotatably installed on the top of one end of the support plate (20), the outer surfaces of the driving pulley (19) and the driven pulley (21) are sleeved with a connecting belt (22), a connecting turntable (23) is fixedly connected to the middle of one end of the driven pulley (21), and a plurality of fixed sleeves (24) are fixedly installed on the edge of one end of the connecting turntable (23), a collecting box (25) is provided on the upper surface of the sampling platform (1) near the connecting turntable (23), and a feeding mechanism is also provided at a position corresponding to the operation window (3) on the upper surface of the sampling platform (1).

2. A medical test sampling device according to claim 1, characterized in that: The positioning assembly includes a positioning card (8), the positioning card (8) is symmetrically and movably arranged on the outer surface of the conveyor belt (6), a fixed card slot (9) is provided in the middle of one side of the inner wall of the positioning card (8), and elastic protective pads (10) are fixedly connected to the front and rear ends of the positioning card (8). A fixed bracket (11) is fixedly installed on the outer surface of the conveyor belt (6) near the front and rear ends of the positioning card (8), an inner groove (12) is provided on the top of one side of the fixing bracket (11), a connecting rod (13) is symmetrically welded to one side of the outer surface of the positioning card (8), and a spring (14) is installed on one side of the connecting rod (13) extending to the inner groove (12).

3. A medical test sampling device according to claim 1, characterized in that: The feeding mechanism comprises an electric telescopic rod (26), the electric telescopic rod (26) being arranged at the middle position of the upper surface of the sampling platform (1), a placement rack (27) being installed at the output end of the electric telescopic rod (26), a placement groove (28) being provided at the middle of the top end of the placement rack (27), a vacuum blood collection tube (29) being placed inside the placement groove (28), a storage rack (30) being fixedly installed on the upper surface of the sampling platform (1) near the electric telescopic rod (26), a guide plate (31) being obliquely arranged at the bottom end outlet of the storage rack (30), a movable pressure plate (32) being movably installed at the top opening of the storage rack (30), and a connecting clamp (33) being fixedly installed on the upper surface of the movable pressure plate (32).

4. A medical test sampling device as claimed in claim 3, characterized in that: A plurality of vacuum blood collection tubes (29) are placed inside the storage rack (30). A reset baffle (34) is rotatably mounted on the bottom opening of the storage rack (30) facing away from the guide plate (31) via a bearing. Torsion springs (35) are mounted on the outer surface of the hinge shaft at the front and rear ends of the reset baffle (34).

5. A medical test sampling device as claimed in claim 1, characterized in that: A placement pad (36) is fixedly installed on the upper surface of the sampling platform (1) near the operation window (3), and an equipment bracket (37) is provided on the upper surface of the sampling platform (1) near the edge of the operation window (3). An ultrasonic scanning sensor (38) is installed on the top of the inner surface of the equipment bracket (37), and an OLED display screen (39) is installed on the top of the outer surface of the equipment bracket (37).

6. A medical test sampling device as claimed in claim 5, characterized in that: A fixing member (40) is fixedly installed on the upper surface of the sampling platform (1) near one side edge of the placement pad (36), and an elastic band (41) is sleeved on the outer surface of the fixing member (40). A limiting member (42) is fixedly installed on the upper surface of the sampling platform (1) near the other side edge of the placement pad (36), and one side edge of the elastic band (41) passes through the limiting member (42) and is sleeved on the arm.

7. A medical test sampling device as claimed in claim 2, characterized in that: The front and rear ends of the limit clamp tube (15) extend to the outside of the positioning clamp (8), and the middle part of one side of the outer surface of the limit clamp tube (15) is located inside the fixed clamp groove (9), and the limit clamp tube (15) and the fixed clamp groove (9) are engaged with each other.

8. A medical test sampling device as claimed in claim 3, characterized in that: A sealing hole is provided in the middle of one end of the vacuum blood collection tube (29), and an edge of one end of the vacuum tube connector (17) extends through the sealing hole into the interior of the vacuum blood collection tube (29), and the vacuum tube connector (17) and the sealing hole are adapted to each other.

9. A method for using a medical test sampling device, the medical test sampling device according to any one of claims 1 to 8, characterized in that The following steps are involved: S1. Equipment Preparation: Place the vacuum blood collection tubes in the storage rack and secure the movable pressure plate with the connecting clamps to ensure the vacuum blood collection tubes are arranged in order. Start the stepper motor, causing the conveyor belt to drive the positioning assembly and the limit clamp tube in a circular motion. S2. Sample Positioning: The patient's arm is placed on a placement pad and secured with an elastic strap. An ultrasound sensor scans the vein location, and an OLED display displays the vascular image, assisting medical staff in determining the puncture point. S3. Blood Collection Operation: The electric telescopic rod pushes the placement rack, allowing the vacuum blood collection tube to pass through the guide plate and into the conveyor mechanism. The vacuum tube connector is inserted into the sealed hole of the vacuum blood collection tube. The blood collection needle is stabilized in the fixed slot of the positioning assembly. The medical staff punctures the vein through the operating window, and blood flows into the vacuum blood collection tube under the action of negative pressure. S4. Automatic Separation and Collection: After blood collection is complete, the conveyor belt transports the used limited-position clamp tube to the collection mechanism. The active pulley, via the connecting belt, drives the driven pulley and the connecting turntable to rotate. The fixed clamping sleeve locks the limited-position clamp tube into the collection box, achieving automatic separation and collection, preventing medical staff from direct contact with contaminated components. S5. Disinfection and reset: After the equipment is finished running, the positioning components, conveying mechanism, etc. are automatically or manually disinfected, and each component is reset to its initial state to prepare for the next sampling.

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