Automatic puncture quantitative normal saline extraction equipment and use method

Abstract

The invention discloses automatic puncture quantitative normal saline extraction equipment and a using method. The interior of an equipment box is divided into a first inner cavity and a second inner cavity which are arranged left and right through a first partition frame, a second partition frame and a third partition frame, and a plurality of first equidistant movable grooves and a plurality of corresponding needle cylinder through holes are alternately formed in the third partition frame up and down; the first movable grooves penetrate through the corresponding movable frame plates, needle cylinder tail wing clamping frames are arranged on the movable frame plates, a movable valve is arranged in the second inner cavity, one end of the valve is communicated with a cylinder head of a needle cylinder, and the other end of the valve is communicated with a normal saline bag. The needle head with the needle cap is clamped or loosened between the two needle head clamps, the needle cylinder and the valve automatically carry out normal saline output configuration, the needle cylinder and the needle head with the needle cap are automatically clamped and fixed, and the needle cylinder and the needle head with the needle cap rebound to be separated from the machine after being safely closed and fixed, so that the purpose of automatically extracting quantitative liquid is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and specifically to an automatic puncture and quantitative extraction physiological saline device and a usage method thereof. Background Art

[0002] Peripheral intravenous catheters are a relatively common medical method. They can reduce the long-term pain of patients and also provide more infusion channels for patients. With the development of medical technology, the advantages of peripheral intravenous catheter bodies have gradually emerged, and the application scope has increased day by day. The number of times of puncturing veins with peripheral intravenous catheters is small, the time can be extended, the pain felt by patients is less, the acceptance of patients is high, and it can also reduce the workload of medical staff, making infusion more convenient. It is the first choice for clinical infusion treatment tools.

[0003] Currently, physiological saline is generally used clinically for flushing the tube before intravenous catheter infusion, sealing the tube after infusion, and daily maintenance during the infusion interval. However, due to the relatively high cost of disposable physiological saline sealing solution, currently in clinical practice, nurses mainly manually puncture and extract bagged physiological saline with a 5 ml syringe. Due to the large number of patients, the daily number of syringe extractions is large. Moreover, in order to ensure that the extracted liquid is used within the validity period, the extraction and expiration times must be written after extraction, which is cumbersome to manage, increasing the work intensity and manual errors of nurses. Not only that, in the process of multiple manual puncture extractions by nurses, multiple punctures lead to needle stick injuries and infection risks, increasing the risk of occupational exposure. Moreover, in order to accurately control the amount of extracted liquid medicine, repeated punctures of the needle may introduce insoluble particles, affecting the quality of physiological saline. In view of the above problems, the existing technology urgently needs to be improved. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic puncture and quantitative extraction physiological saline device and a usage method thereof, which have the advantages of automatically and quantitatively extracting physiological saline, reducing the risk of occupational exposure, improving efficiency, and simplifying the management of the validity period. To achieve the above purpose, the present invention provides the following technical solution: An automatic puncture and quantitative extraction physiological saline device, including a device box. The interior of the device box is divided into a left and right arranged inner cavity one and inner cavity two by partition frame one, partition frame two, and partition frame three. Inner cavity one is located on the left side of partition frame one, and inner cavity two is located between partition frame one and partition frame two. Partition frame three is alternately provided with a plurality of equally spaced movable slots one and a plurality of corresponding syringe through holes up and down. Movable slots one all penetrate through the corresponding movable frame plates. Needle barrel tail wing clamping frames are provided on the movable frame plates for clamping the tail wings of the syringe. A movable valve is provided in inner cavity two. One end of the valve communicates with the barrel head of the syringe, and the other end communicates with the physiological saline bag for the syringe to extract a quantitative amount of physiological saline. A movable needle head clamping clip corresponding to the syringe is provided on the right side of partition frame one. A needle head with a needle cap is clamped or loosened between the two needle head clamping clips for installing the needle head with a needle cap on the barrel head of the syringe.

[0005] As a preferred technical solution of the present invention, the valve is clamped to the valve holder. The rear part of the valve holder is fixedly connected to the second pneumatic telescopic rod. The cylinder body of the second pneumatic telescopic rod is arranged in the fixed cylinder. A connecting frame is installed at the bottom of the fixed cylinder. The left side of the connecting frame is clamped to the rod body of the first pneumatic telescopic rod. The cylinder body of the first pneumatic telescopic rod is clamped to the movable frame. The movable frame is threadedly connected to the threaded rod. The movable frame is slidably connected to the right side of the first partition frame. The top of the threaded rod penetrates through the equipment box and is fixedly connected to the output end of the DC motor. The connecting frame is slidably connected to the rear end of the second partition frame, contacting or moving away from the movable frame.

[0006] By adopting the above technical solution, the docking of the valve with syringes at different positions can be accurately controlled, avoiding liquid leakage or extraction quantity errors caused by position deviation, enabling the equipment to efficiently process the quantitative extraction operations of multiple syringes, significantly improving the operation efficiency per unit time, and at the same time reducing the frequency of manual intervention.

[0007] As a preferred technical solution of the present invention, a support structure composed of an inner upper frame, an inner lower rear frame, and an inner lower front frame is provided in the first inner cavity of the equipment box. Symmetrically distributed first through slots and second through slots are provided on the front side of the inner upper frame. A third jack, a first jack, and a second jack are opened at the top of the equipment box; the top of the high-pressure pump forms an upward passage through the connecting head and the lower pipe. The lower pipe sequentially penetrates through the first through slot and the third jack and is communicated with the physiological saline three-way interface. The interface is fixedly connected to the physiological saline bag through a rubber plug; one end of the connecting pipeline is connected to the valve. The connecting pipeline sequentially penetrates through the first jack, the second jack, the second through slot, and the right side gap between the inner lower rear frame and the inner lower front frame and then is connected to the runner. The runner is fixed to the first inner cavity through a fixed rod. The bottom of the high-pressure pump is communicated with the other end of the connecting pipeline through the connecting bottom head.

[0008] As a preferred technical solution of the present invention, a movable frame with a rubber limit plate is provided on the right side of the first partition frame. Needle barrel head through holes are equidistantly distributed on the front side of the partition frame; fixing plugs one and two are respectively arranged at each penetration part, and a saline filling key linked to the physiological saline three-way interface is provided on the top of the equipment box.

[0009] By adopting the above technical solution, the saline filling key is a pressure trigger switch on the top of the equipment box. By pressing the key, the flow control of the physiological saline three-way interface is triggered, forming a single quantitative liquid filling operation instruction and one-key quantitative liquid filling control.

[0010] As a preferred technical solution of the present invention, a first micro pneumatic telescopic rod corresponding to the syringe is provided on the right side of the first partition frame. Connecting blocks are provided at the tops of the first micro pneumatic telescopic rods. Double-headed pneumatic telescopic rods are provided on the connecting blocks. Needle clamps are provided on the rod bodies of the double-headed pneumatic telescopic rods; Needle head bayonet frames are provided on the right sides of the syringe through holes. The needle head bayonet frames are respectively clamped to the sides of the corresponding needle heads with needle caps. The barrel heads of the syringes respectively penetrate through the corresponding needle barrel head through holes. Needle heads with needle caps are provided on the left sides of the syringes.

[0011] By adopting the above technical solution, it is possible to achieve the full-automatic and precise docking of the needle head with the needle cap and the syringe barrel, eliminate the risk of needle slippage during manual installation, and effectively isolate the operator from contact with sharp parts through a closed operation process, significantly reducing the risk of occupational exposure.

[0012] As a preferred technical solution of the present invention, a display control module and an operation control module are provided on the front side of the equipment box; the display control module includes a milliliter display screen, a number of times display screen, and an alarm display screen arranged horizontally, and are respectively configured with a corresponding switching key one, switching key two, and switching key three. The switching key one is connected to the number of times display screen, the switching key two is connected to the chip placement rack at the top of the inner cavity two, the switching key three is connected to the alarm display screen, and each display screen is respectively connected to the equipment box; the operation control module includes an on-off key one, on-off key two, on-off key three, and on-off key four arranged linearly, which are respectively connected to the pneumatic telescopic rod one, pneumatic telescopic rod two, micro pneumatic telescopic rod one, and micro pneumatic telescopic rod two; the chip placement rack is connected to the equipment box, the alarm display screen, and the switching key two through embedded wiring.

[0013] By adopting the above technical solution, the number of daily manual puncture operations by nurses to extract normal saline is effectively reduced, and the setting of the chip placement and the alarm display screen automatically generates and warns of the validity period of the sealing liquid, eliminating manual errors.

[0014] As a preferred technical solution of the present invention, the through holes of the syringe head are all in contact with or away from the sealing plate in the inner cavity two. A micro pneumatic telescopic rod two is provided on the front side of the sealing plate, and the micro pneumatic telescopic rod two is fixed in the equipment box. A box frame is provided at the rear of the partition frame two. A plurality of equally spaced nozzles are arranged inside the box frame and are connected to the suction pump through a through pipe. The suction pump is provided with a switching valve and is connected to the disinfection box, and the disinfection box is installed on the top of the equipment box; a filter screen is provided on the left side of the box frame, which is in contact with the valve and the valve holder respectively.

[0015] By adopting the above technical solution, the equally spaced layout of the nozzle array ensures that the disinfectant liquid evenly covers the surface of the valve, eliminating the possible cleaning dead corners of traditional manual wiping.

[0016] As a preferred technical solution of the present invention, a side door is provided on the right side of the equipment box. The side door is provided with a movable slot two corresponding to the movable slot one and penetrates the corresponding movable frame plate. Clamping rods are provided at the four corners on the left side of the side door, and the clamping rods are respectively engaged with the corresponding clamping slots. Fixed blocks are provided in the clamping slots, and the fixed blocks are respectively arranged on the equipment box on the left side of the side door. A handle is provided on the side door for the side door to be clamped or separated from the inside right side of the equipment box. A transparent front door is provided on the front side of the equipment box.

[0017] By adopting the above technical solution, the transparent front door provides a continuous status monitoring window and avoids internal contamination caused by frequent opening.

[0018] As a preferred technical solution of the present invention, visual sensors are sequentially arranged corresponding to the side of the second partition frame close to the syringe barrel. A plurality of equally spaced through grooves are provided at the rear side of the third partition frame. Controllers are provided inside the through grooves. Electromagnets are provided on the controllers on the side close to the side door. Magnet holders are provided at the tails of the syringe barrel tail fin holders. Magnets are provided on the magnet holders on the side of the controllers.

[0019] By adopting the above technical solution, the problems of low efficiency and occupational exposure caused by manual disassembly after quantitative extraction of the syringe barrel are solved. It ensures that the operator completes the syringe barrel replacement in a contactless state, reduces the infection risk and improves the continuous operation ability of the equipment.

[0020] A method for using an automatic puncture quantitative extraction physiological saline device includes the following steps: S1. Open the side door, fix the syringe barrel to the syringe barrel tail fin holder at the movable rack plate and enter the syringe barrel through hole to wait for the extraction of physiological saline; S2. Start the DC motor to drive the threaded rod to rotate. The movable rack on the threaded rod moves up and down on one side of the first partition frame, and moves the valve to the corresponding syringe barrel head through hole; S3. Drive the valve holder to expand and contract back and forth through the second pneumatic telescopic rod. The second pneumatic telescopic rod is driven by the first pneumatic telescopic rod through the connecting frame to approach the syringe barrel head through hole, and dock and connect the valve with the barrel head of the syringe barrel; S4. When the valve is docked and connected with the syringe barrel, the high-pressure pump extracts from the physiological saline bag connected through the lower pipe. The physiological saline three-way interface on the physiological saline bag has three openings of different sizes. It passes through the connecting pipeline and the valve and then reaches the docked syringe barrel. After the quantitative extraction, the milliliter display screen shows; S5. After the extraction is completed, the first pneumatic telescopic rod drives the valve and the syringe barrel away. Then the first micro pneumatic telescopic rod drives the double-headed pneumatic telescopic rod on the connecting block and the needle head with a needle cap fixed by the needle head clamps on both sides to approach the syringe barrel head through hole. After the needle head clamps on both sides clamp the needle head with a needle cap and pass through the corresponding syringe barrel head through hole and dock and fix with the syringe barrel, the double-headed pneumatic telescopic rod drives the needle head clamps on both sides to release the needle head with a needle cap. Then the valve is driven by the DC motor and moves up and down on the threaded rod to the position of other syringe barrels for the next extraction of saline; S6. After the syringe barrel gets the saline, the visual sensor senses that the syringe barrel is filled with the specified amount of liquid, sends the signal to the controller, and the controller controls the electromagnet to be energized. The magnetic force after the electromagnet is energized repels the magnet, so that the whole syringe barrel pops out automatically; S7. During disinfection, open the switch valve to start the suction pump to extract the disinfectant from the disinfection box, spray it to the valve through a plurality of spray heads. After the filter screen filters the sprayed liquid, the second micro pneumatic telescopic rod drives the sealing plate to block the syringe barrel head through hole; after the disinfection is completed, the sealing plate moves away to make the needle head dock with the syringe barrel.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] First, through the cooperation of the DC motor, the pneumatic telescopic rod one, and the pneumatic telescopic rod two, the valve and the barrel head of the syringe are docked and connected. The physiological saline bag connected to the lower pipe is pumped through the high-pressure pump and introduced into the docked syringe through the valve. After extracting a fixed quantity, the milliliter display screen shows, realizing the automatic detachment function after the syringe is full, ensuring that the operator completes the syringe replacement in a non-contact state, reducing the infection risk and improving the continuous operation ability of the equipment, and also effectively reducing the workload of nurses, avoiding the risk of stabbing and occupational exposure of medical staff from the source.

[0023] Second, the pumping pump extracts the liquid for disinfecting the valve from the disinfection box, and disinfects the valve before each operation through multiple nozzles, avoiding increasing the risk of occupational exposure during the puncture extraction process. The disinfection process ensures operational hygiene and reduces the risk of contamination.

[0024] Third, through the synergistic effect of the inner cavity structure of the equipment box, the movable valve, the automatic control, and the vision sensor, the quantitative extraction of physiological saline and the self-disinfection function of the equipment are realized, effectively reducing the manual operation steps and errors, reducing the risk of occupational exposure, and improving the standardization degree of medical operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is the front perspective view of the present invention;

[0026] Figure 2 is the side view showing the internal structure of the present invention;

[0027] Figure 3 is the right view of the present invention;

[0028] Figure 4 is the right internal structure view showing the present invention;

[0029] Figure 5 is the internal structure view showing the inner cavity one and the inner cavity two of the present invention;

[0030] Figure 6 is the internal structure view showing the inner cavity one of the present invention;

[0031] Figure 7 is the structural exploded view of the present invention;

[0032] Figure 8 is the structural schematic diagram of the vision sensor of the present invention;

[0033] Figure 9 is the present invention Figure 8 partial enlarged schematic view of A in.

[0034] In the figure: 1. Equipment box; 2. First inner cavity; 3. First partition shelf; 4. Second inner cavity; 5. Second partition shelf; 6. Third partition shelf; 7. Upper inner shelf; 8. Lower rear inner shelf; 9. Lower front inner shelf; 10. First through groove; 11. Second through groove; 12. Lower pipe; 13. High-pressure pump; 14. Connecting top head; 15. Connecting bottom head; 16. Fixed rod; 17. Rotating wheel; 18. Second fixed plug; 19. Connecting pipeline; 20. Valve; 21. Valve clamping rack; 22. Second pneumatic telescopic rod; 23. Fixed cylinder; 24. Connecting rack; 25. First pneumatic telescopic rod; 26. Movable rack; 27. Threaded rod; 28. Rubber limit plate; 29. DC motor; 30. First micro pneumatic telescopic rod; 31. Connecting block; 32. Double-headed pneumatic telescopic rod; 33. Needle head with needle cap; 34. Needle barrel head through hole; 35. Needle barrel through hole; 36. Needle barrel; 37. Side opening door; 38. First movable groove; 39. Second movable groove; 40. Movable rack plate; 41. Needle barrel tail wing clamping rack; 42. Fixed block; 43. Card slot; 44. Card rod; 45. Handle; 46. Sealing plate; 47. Second micro pneumatic telescopic rod; 48. Box rack; 49. Sprayer; 50. Filter screen; 51. Connecting pipe; 52. Pump; 53. Switch valve; 54. Disinfection box; 55. Chip placement rack; 56. Normal saline bag; 57. Rubber plug; 58. Normal saline three-way interface; 59. Milliliter display screen; 60. Number of times display screen; 61. Alarm display screen; 62. First power on / off key; 63. Second power on / off key; 64. Third power on / off key; 65. Fourth power on / off key; 66. Transparent front opening door; 67. First fixed plug; 68. First switching key; 69. Second switching key; 70. Third switching key; 71. Saline filling key; 72. Needle head bayonet rack; 73. Needle head clamp; 74. First jack; 75. Second jack; 76. Third jack; 77. Visual sensor; 78. Controller; 79. Electromagnet; 80. Magnet; 81. Penetrating groove; 82. Magnet rack. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. Embodiment 1

[0036] As Figure 1 and Figure 2 shown, an automatic puncture and quantitative extraction of normal saline device includes an equipment box 1. The interior of the equipment box 1 is divided by a first partition shelf 3, a second partition shelf 5 and a third partition shelf 6 into a first inner cavity 2 and a second inner cavity 4 arranged left and right. The first inner cavity 2 is located on the left side of the first partition shelf 3, and the second inner cavity 4 is located between the first partition shelf 3 and the second partition shelf 5.

[0037] AsFigure 7 As shown, a plurality of equally spaced movable slots one 38 and a plurality of corresponding syringe through holes 35 are alternately opened up and down in the partition shelf three 6. The movable slots one 38 all penetrate through the corresponding movable frame plates 40. Needle barrel tail fin holders 41 are provided on the movable frame plates 40 for clamping the tail fins of the needle barrels 36. As Figure 6 and Figure 7 shown, a movable valve 20 is provided in the inner cavity two 4. One end of the valve 20 communicates with the head of the needle barrel 36, and the other end communicates with the physiological saline bag 56 for the needle barrel 36 to extract a fixed amount of physiological saline. As Figure 6 and Figure 7 shown, the valve 20 is clamped in the valve holder 21. The rear part of the valve holder 21 is fixedly connected to the pneumatic telescopic rod two 22. The cylinder body of the pneumatic telescopic rod two 22 is arranged in the fixed cylinder 23. A connecting frame 24 is installed at the bottom of the fixed cylinder 23. The left side of the connecting frame 24 is clamped with the rod body of the pneumatic telescopic rod one 25. The cylinder body of the pneumatic telescopic rod one 25 is clamped with the movable frame 26. The movable frame 26 is threadedly connected to the threaded rod 27. The movable frame 26 is slidably connected to the right side of the partition shelf one 3. The top of the threaded rod 27 penetrates through the equipment box 1 and is fixedly connected to the output end of the DC motor 29. The transmission of the threaded rod 27 refers to a mechanical device that converts rotational motion into linear motion. Specifically, it can be realized by the cooperation of a trapezoidal threaded rod and a sliding nut. Precise displacement control is achieved by driving the DC motor 29. The movable frame 26 bears the pneumatic telescopic rod one 25 and the connecting frame 24 and ensures the accuracy of the movement trajectory. When the docking position of the valve 20 needs to be adjusted, the DC motor 29 drives the threaded rod 27 to rotate, driving the movable frame 26 to move vertically to the target height. The pneumatic telescopic rod one 25 pushes the connecting frame 24 to move horizontally, so that the fixed cylinder 23 and the pneumatic telescopic rod two 22 reach the predetermined horizontal position. Then the pneumatic telescopic rod two 22 drives the valve holder 21 to perform a forward and backward telescopic movement, and finally accurately docks the valve 20 to the head of the corresponding needle barrel 36.

[0038] This application can accurately control the docking state of the valve 20 with the syringe 36 at different positions, avoid liquid leakage or extraction quantity error caused by position deviation, enable the equipment to efficiently process the quantitative extraction operations of multiple syringes 36, significantly improve the operation efficiency per unit time, and reduce the frequency of manual intervention at the same time.

[0039] As Figure 3 、 Figure 4 、 Figure 5 and Figure 7 shown, a support structure composed of an inner upper shelf 7, an inner lower rear shelf 8 and an inner lower front shelf 9 is provided in the inner cavity one 2 of the equipment box 1. Symmetrically distributed through slots one 10 and through slots two 11 are provided on the front side of the inner upper shelf 7. The top of the equipment box 1 is provided with a jack three 76, a jack one 74 and a jack two 75.

[0040] A high-pressure pump 13 is provided inside the first inner cavity 2. The top of the high-pressure pump 13 forms an upward passage through a connecting head 14 and a lower pipe 12. The lower pipe 12 sequentially passes through the first through slot 10 and the third jack 76 and then communicates with a physiological saline three-way interface 58. The interface is fixedly connected to a physiological saline bag 56 through a rubber stopper 57. A valve 20 communicates with one end of a connecting pipeline 19. The connecting pipeline 19 sequentially passes through the first jack 74, the second jack 75, the second through slot 11 and the inner lower rear frame 8 and then connects to the right side gap of the inner lower front frame 9 and then connects to a runner 17. The runner 17 is fixed to the first inner cavity 2 through a fixing rod 16. The bottom of the high-pressure pump 13 communicates with the other end of the connecting pipeline 19 through a connecting bottom head 15.

[0041] As Figure 3 , Figure 5 and Figure 7 shown, on the right side of the first partition 3, there is a movable frame 26 with a rubber limit plate 28. On the front side of the second partition 5, there are syringe head through holes 34 evenly distributed. The rubber limit plate 28 refers to an elastic positioning component arranged in the moving path of the movable frame 26. Specifically, it can be realized by a polyurethane rubber block. Through elastic deformation, it buffers the impact force when the movable frame 26 moves in place, avoiding displacement deviation caused by hard collision of each component. Fixed plugs 67 and 18 are respectively configured at each penetrating part, and a saline filling key 71 linked to the physiological saline three-way interface 58 is provided on the top of the equipment box 1. The first through slot 10 facilitates the clamping or disassembly of the lower pipe 12, and the second through slot 11 facilitates the clamping or disassembly of the connecting pipeline 19. The fixed plug 18 fixes the lower pipe 12 clamped in the first through slot 10, and the fixed plug 67 fixes the connecting pipeline 19 clamped in the second through slot 11. The saline filling key 71 is a pressure trigger switch on the top of the equipment box 1. Specifically, it can adopt a combination of a micro switch and a spring reset structure. By pressing, it triggers the flow control module of the physiological saline three-way interface 58. After the operator presses the saline filling key 71, it controls the physiological saline to enter the syringe 36 through the connecting pipeline 19 at a preset flow rate, forming a one-key quantitative liquid filling control.

[0042] As Figure 5As shown in the figure, a movable needle clip 73 corresponding to the syringe 36 is provided on the right side of the partition 1 3. A needle 33 with a needle cap is clamped or released between the two needle clips 73, which is used to install the needle 33 with a needle cap on the head of the syringe 36. A micro pneumatic telescopic rod 1 30 corresponding to the syringe 36 is provided on the right side of the partition 1 3. Connecting blocks 31 are provided at the tops of the micro pneumatic telescopic rods 1 30. Needle clips 73 are provided on the connecting blocks 31. The micro pneumatic telescopic rod 1 30 is an actuator that realizes linear motion through compressed air drive. Specifically, it can be realized by a cylinder cooperating with a solenoid valve to control the stroke. The double-headed pneumatic telescopic rod 32 is a pneumatic device with a two-way synchronous telescopic function. Specifically, it can be realized by a cylinder structure with double piston rods, which is used to control the clamping actions of the needle clips 73 on both sides simultaneously. Needle bayonet frames 72 are provided on the right sides of the syringe through holes 35. The needle bayonet frames 72 are respectively engaged with the sides of the corresponding needles 33 with needle caps. The heads of the syringes 36 respectively penetrate through the corresponding syringe head through holes 34. Needles 33 with needle caps are provided on the left sides of the syringes 36. Compared with the prior art, the traditional manual installation of needles requires nurses to operate the syringe 36 and the needle with both hands, and there is a risk of connection failure due to alignment deviation. This solution can realize the full-automatic and precise docking of the needle with a needle cap and the syringe 36, eliminate the risk of needle slippage during manual installation, and effectively isolate the operator from sharp parts through a closed operation process, significantly reducing the risk of occupational exposure. The fixation of the needle bayonet frame 72 is combined with the synchronous movement of the double-headed pneumatic telescopic rod 32 to ensure that the needle always maintains a stable posture during the installation process, improving the installation success rate and operation efficiency.

[0043] As Figure 3 shown in the figure, a display control module and an operation control module are provided on the front side of the equipment box 1. The display control module includes a milliliter display screen 59, a number of times display screen 60, and an alarm display screen 61 arranged horizontally, and are respectively configured with a corresponding switching key 1 68, a switching key 2 69, and a switching key 3 70. The switching key 1 68 is connected to the number of times display screen 60, the switching key 2 69 is connected to the chip placement rack 55 at the top of the inner cavity 2 4, the switching key 3 70 is connected to the alarm display screen 61, and each display screen is connected to the equipment box 1.

[0044] The operation control module includes linearly arranged power switches one 62, two 63, three 64, and four 65, which are respectively connected to pneumatic telescopic rod one 25, pneumatic telescopic rod two 22, micro pneumatic telescopic rod one 30, and micro pneumatic telescopic rod two 47. Power switch one 62 controls pneumatic telescopic rod one 25, power switch two 63 controls pneumatic telescopic rod two 22, power switch three 64 controls micro pneumatic telescopic rod one 30, and power switch four 65 controls micro pneumatic telescopic rod two 47. The chip placement rack 55 is connected to the equipment box 1, the alarm display screen 61, and switch two 69 through embedded wiring. Through the chips inside the chip placement rack 55, the validity period and expiration date labels of the normal saline sealing solution can be printed in real time. And five minutes before the expiration of the 24-hour sealing solution, the machine will give an alarm in advance through the alarm display screen 61 to indicate that it is about to expire. The milliliter display screen 59 displays the extracted milliliter quantity, and the number of times display screen 60 displays the number of extractions. The label prints the real-time time, and the printing quantity follows the number of syringes for extracting normal saline. It can also be printed by manually pressing a button and can be manually pasted onto the syringe filled with saline. Switch one 68 is used to switch the number of times, switch two 69 is for printing labels, and switch three 70 is a time switch. It starts timing and displays the elapsed time. After reaching the preset time, the alarm rings. In the existing clinical operations, nurses rely on manual recording of the extraction times and validity information, and need to repeatedly operate the physical record book and paste handwritten labels. This application effectively reduces the number of daily manual puncture operations for nurses to extract normal saline and integrates the manual operation process. The settings of the chip placement and the alarm display screen 61 automatically generate and warn the validity period of the sealing solution, eliminating manual errors. The real-time feedback function of the display control module reduces the repeated confirmation steps of the equipment status during the operation process and improves work efficiency.

[0045] As Figure 1 , Figure 6 and Figure 7 shown, on the right side of the equipment box 1, there is a side opening door 37. The side opening door 37 is provided with a movable slot two 39 corresponding to the movable slot one 38 and penetrates through the corresponding movable rack plate 40. At the four corners on the left side of the side opening door 37, there are clamping rods 44 respectively engaged with the corresponding clamping slots 43. The clamping slots 43 are each provided with a fixing block 42, and the fixing blocks 42 are respectively arranged on the equipment box 1 on the left side of the side opening door 37. A handle 45 is arranged on the side opening door 37 for the side opening door 37 to be engaged with or separated from the inner right side of the equipment box 1. On the front side of the equipment box 1, there is a transparent front opening door 66, which provides a continuous status monitoring window to avoid internal contamination caused by frequent opening.

[0046] Manually open the side door 37, fix the required number of syringes 36 to the syringe tail wing holders at the plate of the movable frame 26 and enter the syringe through holes 35 to wait for the extraction of normal saline. Multiple syringes 36 are preset at one time, and multiple syringes 36 can be pushed in simultaneously to extract normal saline. The valve 20 and the valve holder for fixing the valve 20 are driven by the pneumatic telescopic rod two 22 to expand and contract horizontally. The pneumatic telescopic rod two 22 is driven by the connecting frame 24 connected thereto by the pneumatic telescopic rod one 25 to approach multiple syringe head through holes 34, so that the valve 20 is communicated with the syringe 36. The pneumatic telescopic rod one 25 is provided with a movable frame 26. The DC motor 29 drives the threaded rod 27 to rotate. The movable frame 26 on the threaded rod 27 moves vertically along the right side of the partition frame one 3, and moves the valve 20 to the corresponding syringe head through hole 34. The rubber limit plate 28 provides a positioning function for the up and down movement of the movable frame 26 to the corresponding syringe head through hole 34. After the valve 20 moves to the corresponding syringe head through hole 34, it is docked and communicated with the syringe head of the syringe 36 to be extracted on the right side of the syringe head through hole 34. When the valve 20 is docked and communicated with the syringe 36, the high-pressure pump 13 extracts normal saline from the normal saline bag 56 through the lower pipe 12. The normal saline three-way interface 58 of the normal saline bag 56 is connected to pipelines of different thicknesses and the connecting pipeline 19. The normal saline flows through the connecting pipeline 19 and into the docked syringe 36 through the valve 20. After a fixed quantity is extracted, the milliliter display screen 59 shows the value. After the extraction is completed, the pneumatic telescopic rod one 25 drives the valve 20 to separate from the syringe 36. Subsequently, the micro pneumatic telescopic rod one 30 drives the double-headed pneumatic telescopic rod 32 on the connecting block 31 and the needle caps with needles fixed by the needle clamps 73 on both sides to approach the syringe head through hole 34. After the needle clamps 73 on both sides clamp the needle caps with needles and pass through the corresponding syringe head through hole 34 and are docked and fixed with the syringe 36, the double-headed pneumatic telescopic rod 32 drives the needle clamps 73 to loosen the needles, and the needle head bayonet holder 72 is stabilized by pressing against the side of the needle cap with the needle. Thereafter, the valve 20 is driven by the DC motor 29 to move up and down along the threaded rod 27 to other syringe 36 positions for saline extraction. After the syringe 36 is filled with saline, manually open the side door 37 and push the syringe 36 fixed by the syringe tail wing holder on the plate of the movable frame 26 into the syringe through hole 35 to wait for liquid filling. The syringe tail wing holder needs to clamp and fix the syringe 36 before it can correspond to the syringe through hole 35 and pass through. Multiple syringes 36 can be preset at one time and pushed in simultaneously for batch filling. After the visual sensor 77 detects that the syringe 36 is filled with liquid, it sends a signal to the controller 78. The controller 78 controls the electromagnet 79 to be energized. The magnet 80 arranged on the magnet 80 holder generates a repulsive magnetic force with the electromagnet 79, so that the syringe 36 automatically pops out. If manual operation is required, the side door 37 needs to be opened after the syringe 36 is filled with liquid to remove the syringe 36, and the plate of the movable frame 26 is simultaneously disengaged from the movable groove, and finally the function of automatically quantitatively extracting liquid is realized.

[0047] Workflow:

[0048] In use, medical staff manually open the side door 37, fix the required number of syringes 36 to the syringe tail wing holders at the plate of the movable frame 26 and insert them into the syringe through holes 35 to wait for the extraction of normal saline. Multiple syringes 36 are preset at one time. For example, five syringes 36 are prefabricated and can be pushed in simultaneously for the extraction of normal saline. The valve 20 and the valve holder 20 are driven by the pneumatic telescopic rod two 22 to expand and contract horizontally. The pneumatic telescopic rod two 22 is driven by the connecting frame 24 connected thereto by the pneumatic telescopic rod one 25 to approach the multiple syringe head through holes 34, so that the valve 20 is communicated with the syringe 36. The pneumatic telescopic rod one 25 is provided with a movable frame 26. The DC motor 29 drives the threaded rod 27 to rotate, and the movable frame 26 on the threaded rod 27 moves vertically along the right side of the partition frame one 3 to move the valve 20 to the corresponding syringe head through hole 34. The rubber limit plate 28 provides a positioning function for the vertical movement of the movable frame 26 to the corresponding syringe head through hole 34. After the valve 20 moves to the corresponding syringe head through hole 34, it is docked and communicated with the syringe head of the syringe 36 to be extracted on the right side of the syringe head through hole 34. When the valve 20 is docked and communicated with the syringe 36, the high-pressure pump 13 extracts normal saline from the normal saline bag 56 through the lower pipe 12. The normal saline three-way interface 58 of the normal saline bag 56 is connected to pipelines of different thicknesses and the connecting pipeline 19. The normal saline flows through the connecting pipeline 19, passes through the valve 20 and flows into the docked syringe 36. After a fixed amount is extracted, the milliliter display screen 59 shows the value. After the extraction of the syringe 36 is completed, the pneumatic telescopic rod one 25 drives the valve 20 to separate from the syringe 36. Subsequently, the pneumatic telescopic rod one 25 drives the double-headed pneumatic telescopic rod 32 on the connecting block 31 and the needle cap-equipped needles fixed by the two-side needle clamps 73 to approach the syringe head through hole 34. After the two-side needle clamps 73 clamp the needle cap-equipped needles and pass through the corresponding syringe head through hole 34 and are docked and fixed with the syringe 36, the double-headed pneumatic telescopic rod 32 drives the needle clamps 73 to loosen the needles, and the needle socket holder 72 is stabilized by pressing against the side of the needle cap-equipped needle. Thereafter, the valve 20 is driven by the DC motor 29 to move up and down along the threaded rod 27 to other positions of the syringe 36 for the extraction of normal saline. After the syringe 36 completes the extraction of normal saline, the medical staff manually operate to open the side door 37 to remove the syringe 36, and the plate of the movable frame 26 is simultaneously separated from the movable groove, and finally the function of automatically quantitatively extracting liquid is realized.

[0049] Embodiment 2 On the basis of Embodiment 1, in order to enable the syringe 36 to automatically separate after being filled with normal saline, which is convenient for medical staff to take and use immediately. As Figure 8 and Figure 9As shown, a vision sensor 77 is successively provided corresponding to one side of the partition shelf two 5 close to the syringe barrel 36. A plurality of equally spaced through grooves 81 are provided at the rear side of the partition shelf three 6. A controller 78 is provided inside each of the through grooves 81. An electromagnet 79 is provided on each controller 78 on the side close to the side opening door 37. A magnet holder 82 is provided at the tail of the syringe barrel tail fin holder 41. A magnet 80 is provided on the magnet holder 82 on the side of the controller 78. Through the combination of optical detection by the vision sensor 77 and magnetic drive, the automatic detachment function after the syringe barrel 36 is full is realized, eliminating the manual intervention link, solving the problems of low efficiency and occupational exposure caused by manual disassembly after the syringe barrel 36 is quantitatively extracted. Through the automatic detachment mechanism, it is ensured that the operator completes the replacement of the syringe barrel 36 in a contactless state, reducing the infection risk and improving the continuous operation ability of the equipment.

[0050] Based on the working process of Embodiment 1, for the automatic ejection function of the syringe barrel 36, when the vision sensor 77 detects that the syringe barrel 36 is filled with liquid, it sends a signal to the controller 78. The controller 78 controls the electromagnet 79 to be energized. The magnet 80 provided on the magnet holder 80 generates a repulsive magnetic force with the electromagnet 79, so that the magnet holder 82 drives the syringe barrel tail fin clip 41 to eject the syringe barrel 36 automatically, and finally realizes the function of automatically quantitatively extracting liquid.

[0051] Embodiment 3

[0052] Based on Embodiment 1 or Embodiment 2, in order to disinfect the valve, as Figure 6 shown, the syringe head through holes 34 are all in contact with or away from the sealing plate 46 in the inner cavity two 4. A micro pneumatic expansion rod two 47 is provided on the front side of the sealing plate 46. The micro pneumatic expansion rod two 47 is fixed in the equipment box 1. A box frame 48 is provided at the rear part of the partition shelf two 5. A plurality of equally spaced spray heads 49 are provided inside the box frame 48 and are communicated with a suction pump 52 through a through pipe 51. The suction pump 52 is provided with a switch valve 53 and is communicated with a disinfection box 54. The disinfection box 54 is installed on the top of the equipment box 1. A filter screen 50 is provided on the left side of the box frame 48, which is all in contact with the valve 20 and the valve holder 21. The connecting frame 24 is slidably connected to the rear end of the partition shelf two 5 and is in contact with or away from the movable frame 26. Through the array of equally spaced spray heads 49 combined with the dynamic sealing structure of the sealing plate 46, the direct contact between the interface of the syringe barrel 36 and the internal environment of the equipment is effectively blocked, preventing the liquid residue from causing bacterial growth. The equally spaced layout of the spray head 49 array ensures that the disinfectant evenly covers the surface of the valve 20 assembly, eliminating the possible cleaning dead corners in traditional manual wiping. The dual purification function of the filter screen 50 avoids the risk of secondary pollution caused by the repeated use of the disinfectant, ensuring the continuity of the disinfection effect.

[0053] Based on the workflow of Embodiment 1 or Embodiment 2, when disinfection is carried out, the switch valve 53 is opened, and the pumping pump 52 extracts the liquid for disinfecting the valve 20 from the disinfection tank 54, and then sprays it through a plurality of nozzles 49. During spraying, it will be filtered once by the filter net 50. Before each operation of the valve 20, disinfection is carried out. At this time, the sealing plate 46 is driven by the micro pneumatic telescopic rod two 47 to block the plurality of syringe head through holes 34, which is convenient for disinfecting the valve 20. The sealing plate 46 is driven by the micro pneumatic telescopic rod two 47 to move away from the plurality of syringe head through holes 34, which is convenient for the needle head 33 with a needle cap to be clamped with the syringe 36.

[0054] Embodiment 4

[0055] Based on Embodiment 3, a method for using an automatic puncture and quantitative extraction of physiological saline device includes the following steps:

[0056] S1. Manually open the side door 37, and then fix the syringes 36 according to the required quantity to the syringe tail wing holders 41 on the movable rack plate 40 and enter the syringe through holes 35 to wait for the extraction of physiological saline. Five syringes 36 are preset at one time, and five syringes 36 can be pushed in together to extract physiological saline;

[0057] S2. Start the DC motor 29 to drive the threaded rod 27 to rotate, and the movable frame 26 on the threaded rod 27 will move up and down on the right side of the partition frame one 3 to move the valve 20 to the corresponding syringe head through hole 34;

[0058] S3. Drive the valve holder 21 to expand and contract back and forth through the pneumatic telescopic rod two 22, and the pneumatic telescopic rod two 22 will be driven by the pneumatic telescopic rod one 25 through the installed connecting frame 24 to approach the syringe head through hole 34, and connect the valve 20 with the barrel head of the syringe 36 waiting on the right side of the syringe head through hole 34. Through the mutual force on the left and right, the front section of the syringe 36 is clamped into the right side interface of the valve 20;

[0059] S4. When the valve 20 is connected and communicated with the syringe 36, the high-pressure pump 13 extracts from the physiological saline bag 56 connected to the lower pipe 12. The physiological saline three-way interface 58 on the physiological saline bag 56 has three openings of different sizes, and passes through the connecting pipeline 19 and the valve 20 and then into the connected syringe 36. After the quantitative extraction, the milliliter display screen 59 will display;

[0060] After the extraction is completed, the pneumatic telescopic rod 1-25 drives the valve 20 and the syringe 36 away. Then, the micro pneumatic telescopic rod 1-30 drives the double-headed pneumatic telescopic rod 32 on the connecting block 31 and the needle head with a needle cap 33 fixed by the needle head clamps 73 on both sides to approach the through hole 34 of the syringe head. After the needle head clamps 73 on both sides clamp the needle head with a needle cap 33 and pass through the corresponding through holes 34 of the syringe head and are fixed to the syringe 36, the double-headed pneumatic telescopic rod 32 will drive the needle head clamps 73 on both sides to release the needle head with a needle cap 33. The needle head clamping frame 72 can firmly hold the side of the needle head with a needle cap 33. Immediately afterwards, the valve 20 is driven by the DC motor 29, and the threaded rod 27 moves the valve 20 up and down to the position of other syringes 36 to extract physiological saline;

[0061] S6. After the syringe 36 is filled with physiological saline, when the visual sensor 77 senses that the syringe 36 is filled with a specified amount of liquid, it sends a signal to the controller 78. The controller 78 controls the electromagnet 79 to be energized. The magnetic force after the electromagnet 79 is energized repels the magnet 80, so that the entire syringe 36 pops out automatically, achieving the purpose of automatically extracting a fixed amount of liquid.

[0062] S7. When disinfecting, the switch valve 53 is opened. The suction pump 52 extracts the liquid for disinfecting the valve 20 from the disinfection box 54, and then sprays it through multiple nozzles 49. When spraying, it will be filtered once by the filter net 50 to disinfect the valve 20 before each operation. At this time, the sealing plate 46 is driven by the micro pneumatic telescopic rod 2-47 to block the multiple through holes 34 of the syringe head, which is convenient for disinfecting the valve 20. After disinfection, the sealing plate 46 moves away from the multiple through holes 34 of the syringe head by the micro pneumatic telescopic rod 2-47, facilitating the clamping of the needle head with a needle cap 33 to the syringe 36.

[0063] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An automatic puncture quantitative extraction device for physiological saline, comprising a device box (1), characterized in that: The interior of the equipment box (1) is divided into an inner cavity (2) and an inner cavity (4) arranged on the left and right by a partition frame (3), a partition frame (5) and a partition frame (6), wherein the inner cavity (2) is located on the left side of the partition frame (3), and the inner cavity (4) is located between the partition frame (3) and the partition frame (5); The partition frame 3 (6) is provided with a plurality of equally spaced movable grooves 1 (38) and a plurality of corresponding syringe through holes (35) alternately arranged at the top and the bottom. The movable grooves 1 (38) all penetrate the corresponding movable frame plates (40). The movable frame plates (40) are provided with syringe tail wing clamps (41) for clamping the tail wing of the syringe (36). A movable valve (20) is provided in the inner cavity 2 (4). One end of the valve (20) is connected to the syringe (36), and the other end is connected to the physiological saline bag (56) for the syringe (36) to extract a fixed amount of physiological saline. A movable needle clamp (73) corresponding to the syringe (36) is provided on the right side of the partition frame 1 (3). A needle with a needle cap (33) is clamped between the two needle clamps (73) for installing the needle with a needle cap (33) on the barrel head of the syringe (36).

2. The device for quantitatively extracting physiological saline according to claim 1, characterized in that: The valve (20) is engaged with the valve bracket (21); the rear portion of the valve bracket (21) is fixedly connected to the pneumatic telescopic rod 2 (22); the cylinder body of the pneumatic telescopic rod 2 (22) is arranged on the fixed cylinder (23); a connecting frame (24) is installed at the bottom of the fixed cylinder (23); the left side of the connecting frame (24) is engaged with the rod body of the pneumatic telescopic rod 1 (25); the cylinder body of the pneumatic telescopic rod 1 (25) is engaged with the movable frame (26); the movable frame (26) is threadedly connected to the threaded rod (27); the movable frame (26) is slidably connected to the right side of the partition frame 1 (3); the top of the threaded rod (27) passes through the equipment box (1) and is fixedly connected to the output end of the DC motor (29); the connecting frame (24) is slidably connected to the rear end of the partition frame 2 (5) and is in contact with or away from the movable frame (26).

3. The device for quantitatively extracting physiological saline according to claim 1, characterized in that: A support structure consisting of an inner upper frame (7), an inner lower rear frame (8) and an inner lower front frame (9) is provided in the inner cavity 1 (2) of the equipment box (1); a symmetrically distributed through slot 1 (10) and a symmetrically distributed through slot 2 (11) are provided on the front side of the inner upper frame (7); and a third plug hole (76), a first plug hole (74) and a second plug hole (75) are provided on the top of the equipment box (1); A high-pressure pump (13) is arranged in the inner cavity one (2). The top of the high-pressure pump (13) forms an upward passage by connecting the top head (14) and the lower tube (12). The lower tube (12) passes through the through groove one (10) and the plug hole three (76) in sequence and is connected to the physiological saline three-way interface (58). The interface is fixedly connected to the physiological saline bag (56) through a rubber stopper (57). The valve (20) is connected to one end of the connecting pipeline (19). The connecting pipeline (19) passes through the plug hole one (74), the plug hole two (75), the through groove two (11) and the right side gap between the inner lower rear frame and the inner lower front frame (9) in sequence and is connected to the rotating wheel (17). The rotating wheel (17) is fixed to the inner cavity one (2) by a fixing rod (16). The bottom of the high-pressure pump (13) is connected to the other end of the connecting pipeline (19) through the connecting bottom head (15).

4. The device for quantitatively extracting physiological saline according to claim 3, characterized in that: A movable frame (26) with a rubber limit plate (28) is provided on the right side of the partition frame 1 (3), and syringe head through holes (34) are equidistantly distributed on the front side of the partition frame 2 (5). Each through-hole is respectively provided with a fixing plug 1 (67) and a fixing plug 2 (18), and a saline filling key (71) linked to a physiological saline three-way interface (58) is provided on the top of the equipment box (1).

5. The device for quantitatively extracting physiological saline according to claim 4, characterized in that: A micro pneumatic telescopic rod (30) corresponding to the syringe (36) is provided on the right side of the partition frame (3), a connecting block (31) is provided at the top of the micro pneumatic telescopic rod (30), a double-headed pneumatic telescopic rod (32) is provided on the connecting block (31), and a needle clamp (73) is provided on the rod body of the double-headed pneumatic telescopic rod (32); A needle bayonet holder (72) is provided on the right side of each syringe through hole (35), and each needle bayonet holder (72) is respectively engaged with the side surface of a corresponding needle with a needle cap (33). The heads of the syringes (36) respectively penetrate the corresponding syringe head through holes (34), and each needle with a needle cap (33) is provided on the left side of each syringe (36).

6. The device for quantitatively extracting physiological saline according to claim 5, characterized in that: The front side of the equipment box (1) is provided with a display control module and an operation control module; The display control module comprises a milliliter display screen (59), a frequency display screen (60) and an alarm display screen (61) arranged horizontally, and is respectively provided with a corresponding switch key 1 (68), a switch key 2 (69) and a switch key 3 (70), wherein the switch key 1 (68) is connected to the frequency display screen (60), the switch key 2 (69) is connected to the chip placement rack (55) at the top of the inner cavity 2 (4), and the switch key 3 (70) is connected to the alarm display screen (61), and each display screen is respectively connected to the equipment box (1); The operation control module comprises a linearly arranged switch key 1 (62), a switch key 2 (63), a switch key 3 (64) and a switch key 4 (65), which are respectively connected to the pneumatic telescopic rod 1 (25), the pneumatic telescopic rod 2 (22), the micro pneumatic telescopic rod 1 (30) and the micro pneumatic telescopic rod 2 (47); The chip placement rack (55) is respectively connected to the device box (1), the alarm display screen (61) and the second switch key (69) through embedded wiring.

7. The device for quantitatively extracting physiological saline according to claim 4, characterized in that: The syringe head through holes (34) are in contact with or away from a sealing plate (46) provided in the second inner cavity (4). A second micro-pneumatic telescopic rod (47) is provided on the front side of the sealing plate (46). The second micro-pneumatic telescopic rod (47) is fixedly arranged in the equipment box (1). A box frame (48) is provided at the rear of the second partition frame (5). A plurality of equidistant nozzles (49) are arranged inside the box frame (48) and are connected to a pump (52) through a through pipe (51). The pump (52) is provided with a switch valve (53) and is connected to a disinfection box (54). The disinfection box (54) is installed on the top of the equipment box (1). A filter screen (50) is provided on the left side of the box frame (48), and both are in contact with the valve (20) and the valve bracket (21).

8. The device for quantitatively extracting physiological saline according to claim 7, characterized in that: The right side of the equipment box (1) is provided with a side door (37), the side door (37) is provided with a movable groove 2 (39) corresponding to the movable groove 1 and passes through the corresponding movable frame plate (40), the four left corners of the side door (37) are provided with clamping rods (44), the clamping rods (44) are respectively engaged with the corresponding clamping grooves (43), the clamping grooves (43) are respectively provided with fixing blocks (42), the fixing blocks (42) are respectively arranged on the equipment box (1) and located on the left side of the side door (37), the side door (37) is provided with a handle (45) for engaging or moving the side door (37) away from the right side inside the equipment box (1), and the front side of the equipment box (1) is provided with a transparent front door (66).

9. The device for quantitatively extracting physiological saline according to claim 1, characterized in that: The second partition (5) is provided with a visual sensor (77) on one side close to the syringe (36), and the rear side of the third partition is provided with a plurality of equidistant through grooves (81). The interior of the through grooves (81) is provided with a controller (78). The controller (78) is provided with an electromagnet (79) on the side close to the side door (37). The tail of the syringe tail bracket (41) is provided with a magnet frame (82), and the magnet frame (82) is provided with a magnet (80) on one side of the controller (78).

10. A method for using an automatic puncture quantitative extraction device for physiological saline, characterized in that: The following steps are involved: S1, open the side door (37), fix the syringe (36) to the syringe tail bracket (41) at the movable frame (40), and insert the syringe through hole (34) into the syringe to wait for the extraction of physiological saline; S2, starting the DC motor (29) to drive the threaded rod (27) to rotate, and the movable frame (26) on the threaded rod (27) moves up and down on one side of the partition frame (3), moving the valve (20) to the corresponding syringe head through hole (34); S3, the valve holder (21) is extended and retracted forward and backward by the driving of the pneumatic telescopic rod 2 (22), and the pneumatic telescopic rod 2 (22) is driven by the pneumatic telescopic rod 1 (25) through the connecting frame (24) to approach the syringe head through hole (34), so that the valve (20) and the syringe head (36) are connected and connected; S4, when the valve (20) and the syringe (36) are connected to each other, the high-pressure pump (13) extracts the saline from the saline bag (56) connected to the lower tube (12), and the saline passes through the connecting pipe (19) and the valve (20) and then flows into the syringe (36) connected to the lower tube. After the quantitative amount is extracted, the milliliter display screen (59) is displayed; S5. After the extraction is completed, the pneumatic telescopic rod (25) drives the valve (20) and the syringe (36) to move away, and then the micro pneumatic telescopic rod (30) drives the double-headed pneumatic telescopic rod (32) on the connecting block (31) and the needle with a needle cap fixed by the needle clamp (73) to approach the syringe head through hole (34). After the needle clamps (73) on both sides clamp the needle with a needle cap and pass it through the corresponding syringe head through hole (34) and dock and fix it with the syringe (36), the double-headed pneumatic telescopic rod (32) drives the needle clamps (73) on both sides to release the needle with a needle cap. Then, the valve (20) is driven by the DC motor (29), and the threaded rod (27) moves the valve (20) up and down to the position of other syringes (36) to extract saline next time; S6. After the syringe (36) receives the saline, the visual sensor (77) senses that the syringe (36) is filled with a specified amount of liquid, and sends a signal to the controller (78). The controller (78) controls the electromagnet (79) to be energized. The magnetic force of the electromagnet (79) after being energized repels the magnet (80), so that the entire syringe (36) is automatically ejected. S7, during disinfection, the switch valve (53) is opened and the pump (52) is started to extract disinfectant from the disinfection box (54), and the disinfectant is sprayed to the valve (20) through the plurality of nozzles (49). After the sprayed liquid is filtered by the filter screen (50), the micro pneumatic telescopic rod (47) drives the sealing plate (46) to block the syringe head through hole (34). After the disinfection is completed, the sealing plate (46) is removed to allow the needle and the syringe (36) to be engaged.

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