Medical sampling aid

Abstract

The application discloses a medical sampling auxiliary device, relates to the field of medical detection equipment, and provides a portable medical sampling auxiliary device which can replace manual operation to open and cover a sampling tube cover and disconnect a sampler. The device comprises a rotary tube device, a cutting device, a linear moving device and a cover clamping device. The linear moving device is horizontally arranged. The rotary tube device comprises a rotary tube device shell, a rotating shaft, a rotary tube motor and a tube clamping device. The rotary tube device shell is connected with the linear moving device, and the rotating shaft is vertically arranged and is threadedly connected with the rotary tube device shell. The rotary tube motor is located below the rotating shaft, the output shaft of the rotary tube motor is connected with the rotating shaft by means of a key, so that the rotating shaft can move along the output shaft. The tube clamping device is located above the rotating shaft and is connected with the rotating shaft. The tube clamping device can clamp the sampling tube and keep it vertical. The cover clamping device and the cutting device are located above the rotary tube device and are arranged at intervals along the length direction of the linear moving device.

Description

Technical Field

[0001] This invention relates to the field of medical testing equipment, and more particularly to medical sampling auxiliary devices. Background Technology

[0002] Nucleic acid testing for pathogens is a method used to detect the presence of invading viral nucleic acids in human secretion samples to determine whether a person is infected with a virus. Respiratory pathogen nucleic acid testing uses respiratory secretions as samples to determine the presence of invading viruses in the respiratory tract, and it has become widely known due to its use during the COVID-19 pandemic. Besides diagnosing respiratory diseases, it can also be used to diagnose diseases in other parts of the body.

[0003] Taking respiratory tract sampling as an example, a sampling tube and a sampler (pharyngeal swab) are required. The specific operating steps for the sampler are as follows: A. Take a sampling tube and rotate to open the cap; B. Use the sampler to collect respiratory secretions, holding the cap against the tube body during this process; then open the cap, insert the sampler, and use the tube body and cap to break the pharyngeal swab; C. After sampling, close the cap. If it is a pooled sampling, step B is repeated multiple times. A single nucleic acid sampling operation does not take long, but for large-scale nucleic acid testing or hospital sampling positions, samplers need to perform the above operations continuously for a long time, resulting in significant labor intensity.

[0004] Therefore, the applicant invented a portable medical sampling aid that can replace manual operation in opening and closing the sampling tube cap and disconnecting the sampler. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a portable medical sampling auxiliary device that can replace manual operation in opening and closing the sampling tube cap and disconnecting the sampler.

[0006] The technical solution adopted to solve the above problems is as follows: The medical sampling auxiliary device includes a tube-spinning device, a cutting device, a linear movement device, and a cap clamping device; the linear movement device is horizontally arranged; the tube-spinning device includes a tube-spinning device housing, a rotating shaft, a tube-spinning motor, and a tube clamping device. The tube-spinning device housing is connected to the linear movement device, the rotating shaft is vertically arranged and threadedly connected to the tube-spinning device housing, and the thread pitch of the connecting thread between the rotating shaft and the tube-spinning device housing is the same as that of the sampling tube thread; the tube-spinning motor is located below the rotating shaft, and the output shaft of the tube-spinning motor is keyed to the rotating shaft so that the rotating shaft can move along the output shaft; the tube clamping device is located above the rotating shaft and connected to the rotating shaft, and the tube clamping device can clamp the sampling tube and keep it vertical; the cap clamping device and the cutting device are located above the tube-spinning device and are spaced apart along the length of the linear movement device.

[0007] Furthermore, the medical sampling auxiliary device includes a device housing, a tube rotating device, a cutting device, a linear movement device, and a cap clamping device, all located inside the device housing. The device housing has a tube insertion slot, a tube removal slot, and a sampler hole. The tube insertion slot is located in front of the cap clamping device, the tube removal slot is located behind the cutting device, and the sampler hole is directly opposite the cutting device.

[0008] Furthermore, the pipe clamping device includes a pipe support plate, a first clamping claw, a first guide post, a first clamping sleeve, a first spring, and a first electromagnet; the first guide post is vertically arranged and connected to a first rotating shaft; the pipe support plate is horizontally arranged and connected to the top of the first guide post, and the pipe support plate is made of steel; the number of first clamping claws is at least three, and each first clamping claw is evenly distributed circumferentially around the axis of the first guide post, and the outer surface of the first clamping claw is a conical surface that is larger at the top and smaller at the bottom; the first clamping sleeve includes a first sleeve body and a first base plate, the first base plate is fitted on the first guide post and cooperates with the first guide post, and the first sleeve body is fitted outside the first clamping claw; the first spring is fitted on the first guide post and its two ends abut against the pipe support plate and the first base plate respectively; the first electromagnet is connected to the first base plate and there is a distance between it and the pipe support plate, and the first electromagnet can attract the pipe support plate, causing the first clamping sleeve to move upward and clamp the first clamping claw.

[0009] Furthermore, the tube clamping device includes a first rubber pad, which is connected to the inner surface of the first clamping claw.

[0010] Furthermore, the cover clamping device includes a clamping top plate, a second clamping claw, a second guide post, a second clamping sleeve, a second spring, and a second electromagnet; the second guide post is vertically arranged and connected to the device housing; the clamping top plate is horizontally arranged and connected to the bottom end of the second guide post, and the clamping top plate is made of steel; the number of second clamping claws is at least three, and each second clamping claw is evenly distributed circumferentially around the axis of the second guide post, and the outer surface of the second clamping claw is a conical surface that is smaller at the top and larger at the bottom; the second clamping sleeve includes a second sleeve body and a second base plate, the second base plate is fitted on the second guide post and cooperates with the second guide post, and the second sleeve body is fitted outside the second clamping claw; the second spring is fitted on the second guide post and its two ends abut against the clamping top plate and the second base plate respectively; the second electromagnet is connected to the second base plate and there is a distance between it and the clamping top plate, and the second electromagnet can attract the clamping top plate to make the second clamping sleeve move down and clamp the second clamping claw.

[0011] Furthermore, the cover clamping device includes a second rubber pad, which is connected to the inner surface of the second clamping claw.

[0012] Furthermore, the cutting device includes scissors and a scissor drive mechanism. The scissors are horizontally positioned and include a hinge shaft and two cutting arms. The hinge shaft is connected to the device housing, and both cutting arms are hinged to the hinge shaft. Each cutting arm has a connecting post. The scissor drive mechanism includes a mounting base, a drive screw, a guide rod, a moving plate, and a scissor drive motor. There are two mounting bases, spaced apart. The drive screw and guide rod are aligned in the same direction and mounted on both mounting bases. Each moving plate corresponds to one cutting arm. The moving plate is fitted onto the guide rod and threadedly connected to the drive screw. The threads connecting the two moving plates to the drive screw have opposite directions of rotation. Each moving plate has an elongated hole. The connecting post is inserted into the elongated hole.

[0013] Furthermore, the medical sampling auxiliary device includes a scissor disinfection device installed inside the device housing. The scissor disinfection device includes a disinfectant storage sprayer and two nozzles connected to the disinfectant storage sprayer. The two nozzles are located above and below the scissors, respectively, and both face the scissors.

[0014] Furthermore, the linear motion device is a linear guide rail.

[0015] The beneficial effects of this invention are: 1. This invention can replace manual labor in opening and closing the sampling tube cap and can cut the sampler. The sampler only needs to place the sampling tube on and remove it from this invention and collect the specimen with the sampler, which can reduce the sampler's workload by about half and reduce the sampler's labor intensity.

[0016] 2. The present invention is small in size and weight, and can be carried to the sampling site by hand, which is convenient. Attached Figure Description

[0017] Figure 1 This is a front view of a medical sampling auxiliary device; Figure 2 This is a top view of a medical sampling aid device; Figure 3 yes Figure 1 AA section view; Figure 4 yes Figure 1 BB cross-sectional view; Figure 5 yes Figure 1 CC section view; Figure 6 This is a structural diagram of the swivel tube device; Figure 7 This is a structural diagram of the pipe clamping device; Figure 8 This is a top view of the pipe clamping device; Figure 9 This is a structural diagram of the cover clamping device; Figure 10This is a structural diagram of the shearing device; Figure 11 This is a schematic diagram of the initial state used in this invention; Figure 12 This is a schematic diagram of the first step in the operation of this invention; Figure 13 This is a schematic diagram of the second step of the operation of the present invention; Figure 14 This is a schematic diagram of the third step of the operation of this invention; The diagram is labeled as follows: Device housing 1, tube insertion slot 11, sampler hole 12, tube removal slot 13, partition 14, partition hole 141, tube rotating device 2, tube rotating device housing 21, rotating shaft 22, tube rotating motor 23, output shaft 231, tube clamping device 24, tube support plate 241, first clamping claw 242, first rubber pad 243, first clamping sleeve 244, first sleeve body 2441, first sleeve base plate 2442, first guide post 245, first spring 246, first electromagnet 247, cover clamping device 3, clamping top plate 31, second clamping claw 32, second rubber pad 33, and so on. 34. Second clamping sleeve 34. Second sleeve body 341. Second sleeve base plate 342. Second guide post 35. Second spring 36. Second electromagnet 37. Shearing device 4. Scissors 41. Hinge shaft 411. Shearing arm 412. Connecting post 413. Scissors driving device 42. Drive screw 421. Guide rod 422. Mounting base 423. Moving plate 424. Long hole 4241. Scissors driving motor 425. Linear movement device 5. Scissors disinfection device 6. Disinfectant storage sprayer 61. Spray head 62. Electrical control components 7. Control button 71. Sampling tube 8. Sampling tube body 81. Sampling tube cap 82. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] like Figures 1 to 6 As shown, the medical sampling auxiliary device includes a tube-spinning device 2, a cutting device 4, a linear movement device 5, and a cap-holding device 3. The linear movement device 5 is horizontally positioned. The tube-spinning device 2 includes a tube-spinning device housing 21, a rotating shaft 22, a tube-spinning motor 23, and a tube-holding device 24. The tube-spinning device housing 21 is connected to the linear movement device 5. The rotating shaft 22 is vertically positioned and threadedly connected to the tube-spinning device housing 21. The thread pitch of the connecting thread between the rotating shaft 22 and the tube-spinning device housing 21 is the same as that of the thread of the sampling tube 8. The tube-spinning motor 23 is located below the rotating shaft 22. The output shaft 231 of the tube-spinning motor 23 is keyed to the rotating shaft 22, allowing the rotating shaft 22 to move along the output shaft 231. The tube-holding device 24 is located above the rotating shaft 22 and connected to the rotating shaft 22. The tube-holding device 24 can hold the sampling tube 5 and keep it vertical. The cap-holding device 3 and the cutting device 4 are located above the tube-spinning device 2 and are spaced apart along the length of the linear movement device 5.

[0020] like Figure 11 As shown, in the initial state of the present invention, the tube-spinning device 2 is located in front of the cap-clamping device 3. The sampling tube 8 is inserted into the tube-clamping device 24, and then the present invention is started.

[0021] The first step of this invention is as follows Figure 12 As shown, the linear moving device 5 drives the rotating tube device 2 to move backward until it is directly opposite the cover clamping device 3. Then, the rotating tube motor 23 starts, and the output shaft 231 rotates. Since the output shaft 231 is keyed to the rotating shaft 22, the rotating shaft 22 rotates. The keyed connection does not affect the axial movement of the rotating shaft 22. Because the rotating shaft 22 is threadedly connected to the rotating tube device housing 21, the rotating shaft 22 also moves axially upward when it rotates, driving the tube clamping device 24 and the sampling tube 8 to move upward, so that the sampling tube cover 82 enters the cover clamping device 3. Then, the cover clamping device 3 starts to clamp the sampling tube cover 82. Then, the rotating tube motor 23 reverses and drives the rotating shaft 22 to rotate and move downward. Since the thread pitch of the rotating shaft 22 connecting to the rotating tube device housing 21 is the same as that of the thread of the sampling tube 8, and the sampling tube cover 82 is clamped by the cover clamping device 3, the sampling tube body 81 rotates and moves downward synchronously with the rotating shaft 22, and the sampling tube body 81 separates from the sampling tube cover 82.

[0022] The second step of this invention is as follows Figure 13 As shown, the linear moving device 5 drives the rotating tube device 2 to move further backward, with the rotating tube device 2 facing the cutting device 4, and the sampling tube body 81 also facing the cutting device 4. The sampled sampler is passed through the cutting device 4 and inserted into the sampling tube body 81. Then, the cutting device 4 starts to cut the sampler, and the sampler head automatically falls into the sampling tube body 81.

[0023] During pooled sampling, after one sampling, the linear moving device 5 moves forward, causing the rotating tube device 2 and the cap clamping device 3 to face each other again. The sampling tube cap 82 held by the cap clamping device 3 covers the top of the sampling tube body 81, reducing the possibility of virus spillage. At this time, the next sampling is performed. Of course, in order to further avoid virus spillage, the rotating tube motor 23 can be started to drive the rotating shaft 22 to rotate and move upward, so that the sampling tube body 81 is temporarily connected to the sampling tube cap 82 in a small amount.

[0024] After this process is repeated multiple times, once a sampling tube 8 has finished sampling, the tube rotating device 2 and the cap clamping device 3 are aligned again. The tube rotating motor 23 starts, driving the rotating shaft 22 to rotate and move upward, so that the sampling tube body 81 is connected to the sampling tube cap 82.

[0025] Finally, the third step of this invention is as follows: Figure 14 As shown, the linear moving device 5 moves backward, driving the rotating tube device 2 and the sampling tube 8 to move behind the shearing device 4, so that the sampling tube 8 can be removed.

[0026] It is evident that this invention can replace manual operation in opening and closing the sampling tube cap 82, and can also cut the sampler. The sampler only needs to place the sampling tube 8 onto and remove it from this invention, and use the sampler to collect respiratory secretions, reducing the sampler's workload by approximately half and lowering their labor intensity. This invention is compatible with the sampling tube 8; because the sampling tube 8 is very small, the invention is also small in size and weight, making it convenient to carry to the sampling site.

[0027] As mentioned above, the positional accuracy of the rotating tube device 2 is required to be high during the operation of the present invention, and the rotating tube device 2 is preferably an existing linear guide rail.

[0028] This invention, like conventional automated equipment, should have an electrical control component to control the automatic or command-driven operation of each part. The electrical control component should include a controller, which can be a PLC. The electrical control component should also include a control button 71. Taking nucleic acid pooled sampling as an example, the control method of this invention can be as follows: After inserting the sampling tube 8 into the tube clamping device 24, press the control button 71 to start the invention. The controller controls the tube clamping device 24 to clamp the sampling tube 8, then controls the linear moving device 5 to move until the tube rotating device 2 is aligned with the cap clamping device 3. Then, the tube rotating motor 23 is started, driving the rotating shaft 22 to rotate and move the sampling tube 8 upwards. Then, the cap clamping device 3 is controlled to clamp the sampling tube cap 82. Finally, the tube rotating motor 23 is started, driving the rotating shaft 22 to reverse, separating the sampling tube body 81 from the sampling tube cap 82. This completes the automatic operation. After manually collecting the specimen using the sampler, press control button 71. The controller will then move the linear movement device 5 until the rotating tube device 2 is aligned with the cutting device 4. Insert the sampler into the sampling tube body 81, then press control button 71 again to activate the cutting device 4. After cutting, the controller will move the linear movement device 5 forward until the sampling tube body 81 is aligned with the sampling tube cap 82. After collecting the specimen again, repeat the above process, moving the linear movement device 5 and cutting the tube with the cutting device 4 once more. After pooled sampling, press the control button, and the controller will move the linear movement device 5 to behind the cutting device 4.

[0029] This invention should be powered by electricity, either by plugging into a socket or by using a rechargeable battery.

[0030] For the sake of concealing internal components and for aesthetic purposes, this invention conventionally includes a device housing 1, a tube-spinning device 2, a shearing device 4, a linear moving device 5, and a cover-holding device 3, all located within the device housing 1. The device housing 1 can be U-shaped. The linear moving device 5 has a length substantially the same as the device housing 1 and is disposed on the bottom surface of the device housing 1. The cover-holding device 3 and the shearing device 4 are located within the protrusion of the device housing 1. The device housing 1 has a tube insertion slot 11, a tube removal slot 13, and a sampler hole 12. The tube insertion slot 11 is located in front of the cover-holding device 3, the tube removal slot 13 is located behind the shearing device 4, and the sampler hole 12 is directly opposite the shearing device 4. The tube insertion slot 11 and the tube removal slot 13 are located on both sides of the device housing 1, and both slots extend to the side plate of the protrusion of the device housing 1, allowing the sampling tube 8 to enter the protrusion. The sampler hole 12 can be larger to facilitate the sampler's passage and avoid contact with the surrounding area. It also makes it easier to see the sampling tube 81 and the cutting device 4 inside the device housing 1, so that the sampler can be aligned with the sampling tube 81 and inserted.

[0031] The tube clamping device 24 is used to clamp and fix the sampling tube body 81. Its specific structure can vary, but the preferred embodiment of this invention is as follows: Figure 7 and Figure 8 As shown, the pipe clamping device 24 includes a pipe support plate 241, first clamping claws 242, a first guide post 245, a first clamping sleeve 244, a first spring 246, and a first electromagnet 247. The first guide post 245 is vertically arranged and connected to the first rotating shaft 22. The pipe support plate 241 is horizontally arranged and connected to the top of the first guide post 245, and the pipe support plate 241 is made of steel. The number of first clamping claws 242 is at least three, and each first clamping claw 242 is evenly distributed circumferentially around the axis of the first guide post 245. The outer surface of the first clamping claw 242 is a conical surface that is larger at the top and smaller at the bottom. The first clamping sleeve 244... The sleeve 244 includes a first sleeve body 2441 and a first base plate 2442. The first base plate 2442 is sleeved on the first guide post 245 and cooperates with the first guide post 245. The first sleeve body 2441 is sleeved outside the first clamping claw 242. The first spring 246 is sleeved on the first guide post 245 and its two ends abut against the pipe support plate 241 and the first base plate 2442 respectively. The first electromagnet 247 is connected to the first base plate 2442 and has a distance between it and the pipe support plate 241. The first electromagnet 247 can attract the pipe support plate 241, causing the first clamping sleeve 244 to move upward and clamp the first clamping claw 242.

[0032] The sampling tube 81 is inserted into the ring formed by the first clamping claws 242. The first electromagnet 247 attracts the tube support plate 241, causing the first clamping sleeve 244 to move upward and clamp the first clamping claws 242. Since the outer surface of the first clamping claw 242 is a conical surface that is larger at the top and smaller at the bottom, the clamping of the first clamping sleeve 244 causes the first clamping claw 242 to swing slightly inward and clamp the sampling tube 81.

[0033] The preferred tube clamping device 24 includes a first rubber pad 243, which is connected to the inner surface of the first clamping claw 242. The first rubber pad 243 has a small elasticity, which allows the tube clamping device 24 to function normally even with certain manufacturing errors, and can increase friction, which helps to prevent the sampling tube 81 from rotating inside the tube clamping device 24.

[0034] The structure of the cap clamping device 3 is preferably the same as that of the pipe clamping device 24, specifically as follows: Figure 9 As shown, the cover clamping device 3 includes a clamping top plate 31, second clamping claws 32, a second guide post 35, a second clamping sleeve 34, a second spring 36, and a second electromagnet 37; the second guide post 35 is vertically arranged and connected to the device housing 1; the clamping top plate 31 is horizontally arranged and connected to the bottom end of the second guide post 35, and the clamping top plate 31 is made of steel; the number of second clamping claws 32 is at least three, and each second clamping claw 32 is evenly distributed circumferentially around the axis of the second guide post 35, and the outer surface of the second clamping claw 32 is a conical surface that is smaller at the top and larger at the bottom; the second clamping sleeve 34... The clamping sleeve 34 includes a second sleeve body 341 and a second base plate 342. The second base plate 342 is fitted onto the second guide post 35 and cooperates with the second guide post 35. The second sleeve body 341 is fitted onto the second clamping claw 32. The second spring 36 is fitted onto the second guide post 35 and its two ends abut against the clamping top plate 31 and the second base plate 342 respectively. The second electromagnet 37 is connected to the second base plate 342 and has a distance between it and the clamping top plate 31. The second electromagnet 37 can attract the clamping top plate 31, causing the second clamping sleeve 34 to move down and clamp the second clamping claw 32.

[0035] The preferred cover clamping device 3 includes a second rubber pad 33, which is connected to the inner surface of the second clamping claw 32.

[0036] The structure of the cap clamping device 3 is preferably the same as that of the pipe clamping device 24, and the working principle is also the same, so it will not be described again here.

[0037] The cutting device 4 is used to cut the sampler. The preferred structure of the cutting device 4 in this invention is as follows: Figure 10As shown: The cutting device 4 includes scissors 41 and a scissor drive device 42; the scissors 41 are horizontally arranged and include a hinge shaft 411 and two cutting arms 412. The hinge shaft 411 is connected to the device housing 1, and both cutting arms 412 are hinged to the hinge shaft 411. Each cutting arm 412 has a connecting post 413. The scissor drive device 42 includes a mounting base 423, a drive screw 421, a guide rod 422, a moving plate 424, and a scissor drive motor 425. The mounting base 423... There are two mounting bases 423, which are spaced apart. The drive screw 421 and the guide rod 422 are arranged in the same direction and are both mounted on the two mounting bases 423. The movable plate 424 is arranged in a one-to-one correspondence with the shear arm 412. The movable plate 424 is fitted on the guide rod 422 and threadedly connected to the drive screw 421. The threads connecting the two movable plates 424 and the drive screw 421 have opposite directions of rotation. The movable plate 424 has an elongated hole 4241. The connecting post 413 is inserted into the elongated hole 4241.

[0038] The movable plate 424 is threaded with the drive screw 421, forming a lead screw and nut mechanism. The guide rod 422 ensures that the movable plate 424 can only move along its linear path. Since the threads connecting the two movable plates 424 to the drive screw 421 have opposite directions of rotation, the scissor drive motor 425 drives the drive screw 421 to rotate, causing the two movable plates 424 to move towards or away from each other. The movable plate 424 drives the two shearing arms 412 to close, thus cutting the sampler. When the scissor drive motor 425 reverses, the two shearing arms 412 open. When the shearing arms 412 close and open, the position of the connecting post 413 on the movable plate 424 changes; therefore, the movable plate 424 has an elongated hole 4241 to accommodate the positional changes of the connecting post 413.

[0039] Furthermore, the preferred medical sampling auxiliary device of the present invention includes a scissor disinfection device 6 disposed within the device housing 1. The scissor disinfection device 6 includes a disinfectant storage sprayer 61 and two nozzles 62 connected to the disinfectant storage sprayer 61. The two nozzles 62 are located above and below the scissors 41, respectively, and both face the scissors 41.

[0040] When the scissors 41 are in operation, they are not far from the head of the sampler, and there is a possibility that viruses may adhere to the scissors 41, and they will come into contact with the sampler when cutting. To avoid the scissors 41 adhering to viruses and affecting the test results, it is preferable to set them at the top. After the sampler is cut, when the sampling tube 81 moves away from the cutting device 4, the scissors disinfection device 6 disinfects the scissors 41 by spraying disinfectant solution onto the scissors 41 through the nozzle 62.

[0041] Based on the specific structure of each device in this invention, the device housing 1 may include a partition 14, which divides the internal space of the device housing 1 into two parts. The rotating tube device 2, scissors 41, linear movement device 5, cap clamping device 3, and nozzle 62 are located on one side of the partition 14, while the disinfectant storage sprayer 61, electrical control components 7, and scissor drive device 42 are located on the other side of the partition 14. The partition 14 has a partition hole 141 for the scissors 41 to pass through.

Claims

1. A medical sampling auxiliary device, characterized in that: The device includes a tube-spinning device (2), a shearing device (4), a linear moving device (5), and a cap clamping device (3); the linear moving device (5) is horizontally positioned; the tube-spinning device (2) includes a tube-spinning device housing (21), a rotating shaft (22), a tube-spinning motor (23), and a tube clamping device (24). The tube-spinning device housing (21) is connected to the linear moving device (5), the rotating shaft (22) is vertically positioned and threadedly connected to the tube-spinning device housing (21), and the pitch of the thread connecting the rotating shaft (22) to the tube-spinning device housing (21) and the thread of the sampling tube (8) is... Same; the swivel motor (23) is located below the rotating shaft (22), and the output shaft (231) of the swivel motor (23) is keyed to the rotating shaft (22) so that the rotating shaft (22) can move along the output shaft (231); the tube clamping device (24) is located above the rotating shaft (22) and connected to the rotating shaft (22), and the tube clamping device (24) can clamp the sampling tube (8) and keep it vertical; the cap clamping device (3) and the shearing device (4) are located above the swivel device (2) and are spaced apart along the length direction of the linear moving device (5); The sampling tube (8) is inserted into the tube clamping device (24), and the tube clamping device (24) clamps the sampling tube (8); when the tube rotating device (2) moves to face the cap clamping device (3), the tube rotating device (2) and the cap clamping device (3) can remove and put on the sampling tube cap (82); when the tube rotating device (2) moves to face the cutting device (4), the cutting device (4) can cut the sampler passing through the cutting device (4), and the sampler head automatically falls into the sampling tube body (81). The process of removing and putting on the sampling tube cap (82) using the rotating tube device (2) and the cap clamping device (3) is as follows: The rotating tube motor (23) starts, and the output shaft (231) rotates. Since the output shaft (231) is keyed to the rotating shaft (22), the rotating shaft (22) rotates. When the rotating shaft (22) rotates, it also moves axially upward, driving the tube clamping device (24) and the sampling tube (8) to move upward, so that the sampling tube cap (82) enters the cap clamping device (3); then the cap clamping device (3) starts to clamp the sampling tube cap (82); then The rotary tube motor (23) reverses and drives the rotating shaft (22) to rotate and move downward. Since the thread connecting the rotating shaft (22) and the rotary tube housing (21) has the same pitch as the thread of the sampling tube (8), and the sampling tube cover (82) is clamped by the cover clamping device (3), the sampling tube body (81) and the rotating shaft (22) rotate and move downward synchronously, and the sampling tube body (81) and the sampling tube cover (82) separate. The rotary tube motor (23) starts and drives the rotating shaft (22) to rotate and move upward, and the sampling tube body (81) and the sampling tube cover (82) connect.

2. The medical sampling auxiliary device according to claim 1, characterized in that: The device housing (1), the tube rotating device (2), the shearing device (4), the linear moving device (5) and the cover clamping device (3) are all located inside the device housing (1). The device housing (1) has a tube insertion slot (11), a tube removal slot (13) and a sampler hole (12). The tube insertion slot (11) is located in front of the cover clamping device (3), the tube removal slot (13) is located behind the shearing device (4), and the sampler hole (12) is directly opposite the shearing device (4).

3. The medical sampling auxiliary device according to claim 2, characterized in that: The pipe clamping device (24) includes a pipe support plate (241), a first clamping claw (242), a first guide post (245), a first clamping sleeve (244), a first spring (246), and a first electromagnet (247); the first guide post (245) is vertically arranged and connected to the first rotating shaft (22); the pipe support plate (241) is horizontally arranged and connected to the top of the first guide post (245), and the pipe support plate (241) is made of steel; the number of first clamping claws (242) is at least three, and each first clamping claw (242) is evenly distributed circumferentially around the axis of the first guide post (245), and the outer surface of the first clamping claw (242) is a conical surface that is larger at the top and smaller at the bottom; the first clamping sleeve (244) The first set includes a first body (2441) and a first base plate (2442). The first base plate (2442) is fitted on the first guide post (245) and cooperates with the first guide post (245). The first body (2441) is fitted outside the first clamping claw (242). The first spring (246) is fitted on the first guide post (245) and its two ends abut against the pipe support plate (241) and the first base plate (2442) respectively. The first electromagnet (247) is connected to the first base plate (2442) and there is a distance between it and the pipe support plate (241). The first electromagnet (247) can attract the pipe support plate (241) so that the first clamping sleeve (244) moves up and clamps the first clamping claw (242).

4. The medical sampling auxiliary device according to claim 3, characterized in that: The tube clamping device (24) includes a first rubber pad (243) which is connected to the inner surface of a first clamping claw (242).

5. The medical sampling auxiliary device according to claim 2, characterized in that: The cover clamping device (3) includes a clamping top plate (31), a second clamping claw (32), a second guide post (35), a second clamping sleeve (34), a second spring (36), and a second electromagnet (37); the second guide post (35) is vertically arranged and connected to the device housing (1); the clamping top plate (31) is horizontally arranged and connected to the bottom end of the second guide post (35), and the clamping top plate (31) is made of steel; the number of second clamping claws (32) is at least three, and each second clamping claw (32) is evenly distributed circumferentially around the axis of the second guide post (35), and the outer surface of the second clamping claw (32) is a conical surface that is smaller at the top and larger at the bottom; the second clamping sleeve (34) The device includes a second body (341) and a second base plate (342). The second base plate (342) is fitted onto the second guide post (35) and cooperates with the second guide post (35). The second body (341) is fitted onto the second clamping claw (32). The second spring (36) is fitted onto the second guide post (35) and its two ends abut against the clamping top plate (31) and the second base plate (342) respectively. The second electromagnet (37) is connected to the second base plate (342) and there is a distance between it and the clamping top plate (31). The second electromagnet (37) can attract the clamping top plate (31) so that the second clamping sleeve (34) moves down and clamps the second clamping claw (32).

6. The medical sampling auxiliary device according to claim 5, characterized in that: The cover clamping device (3) includes a second rubber pad (33), which is connected to the inner surface of the second clamping claw (32).

7. The medical sampling auxiliary device according to claim 2, characterized in that: The cutting device (4) includes scissors (41) and a scissor drive device (42); the scissors (41) are horizontally arranged, and the scissors (41) include a hinge shaft (411) and two cutting arms (412). The hinge shaft (411) is connected to the device housing (1), and the two cutting arms (412) are hinged to the hinge shaft (411). The cutting arms (412) have connecting posts (413); the scissor drive device (42) includes a mounting base (423), a drive screw (421), a guide rod (422), a moving plate (424), and a scissor drive motor (425). 23) There are two mounting bases (423) spaced apart. The drive screw (421) and guide rod (422) are set in the same direction and are both mounted on the two mounting bases (423). The moving plate (424) is set one-to-one with the shear arm (412). The moving plate (424) is fitted on the guide rod (422) and threadedly connected to the drive screw (421). The threads connecting the two moving plates (424) and the drive screw (421) are opposite in direction. The moving plate (424) has an elongated hole (4241). The connecting post (413) is inserted into the elongated hole (4241).

8. The medical sampling auxiliary device according to claim 7, characterized in that: The device includes a scissor disinfection device (6) installed inside the housing (1). The scissor disinfection device (6) includes a disinfectant storage sprayer (61) and two nozzles (62). The nozzles (62) are connected to the disinfectant storage sprayer (61). The two nozzles (62) are located above and below the scissors (41) respectively and both face the scissors (41).

9. The medical sampling auxiliary device according to claim 2, characterized in that: The linear motion device (5) is a linear guide rail.

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