Automatic liquid medicine replacing device and using method thereof

Abstract

The invention provides an automatic liquid medicine replacing device and a using method thereof.The automatic liquid medicine replacing device comprises an infusion bottle containing bin provided with a plurality of vacancies, and an infusion bottle needle inserting unit is arranged at the bottom of the infusion bottle containing bin; the infusion bottle needle inserting unit rotates along a rotating shaft of the infusion bottle containing bin through a driving unit, the stop position of the infusion bottle needle inserting unit is positioned through a positioning sensing unit, and when the positioning sensing unit detects that a needle in the infusion bottle needle inserting unit moves to a bottle opening of an infusion bottle, the infusion bottle needle inserting unit is inserted into the infusion bottle containing bin. The needle head is inserted into or pulled out of the infusion bottle through the lifting unit, the lifting unit is provided with a pressing assembly, an infusion tube connected with the needle head penetrates through the pressing assembly, and the infusion bottle needle inserting unit, the driving unit, the positioning sensing unit and the lifting unit are all connected with a cloud platform.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular is an automatic liquid medicine replacement device and a use method thereof. Background Art

[0002] Intravenous infusion is the most commonly used treatment method in hospitals.

[0003] In hospitals, most patients need infusions, but the number of nurses is limited, and it is impossible to monitor the infusion status of each patient in real time and replace the patient's medicine in time. As a result, patients who are receiving infusions alone may fall asleep, or patients accompanied by family members may not pay attention to the remaining medicine and infusion progress due to family negligence, resulting in blood reflux and other adverse consequences, causing further physical harm or even danger to the patient.

[0004] In addition, patients have to call a nurse every time they change their medication. In the busy and stressful medical work, going back and forth to change medication will greatly increase the nurse's workload and may also affect the progress of other patients' dressing changes. Frequent calls to nurses increase the hospital's labor costs.

[0005] Therefore, how to effectively solve the problem of being unable to monitor the patient's infusion progress in real time and the heavy workload of medical staff is a technical problem that needs to be solved urgently. Summary of the invention

[0006] In view of the deficiencies in the above-mentioned background technology, the present invention proposes an automatic liquid medicine replacement device and a method of using the same, which solves the problem of being unable to monitor the patient's infusion progress in real time and the heavy workload of medical staff.

[0007] The technical solution of this application is: A liquid medicine automatic replacement device includes an infusion bottle placement bin with a plurality of empty spaces, an infusion bottle needle unit is provided at the bottom of the infusion bottle placement bin, the infusion bottle needle unit rotates along the rotation axis of the infusion bottle placement bin through a driving unit and the stop position of the infusion bottle needle unit is located through a positioning sensor unit, when the positioning sensor unit detects that the needle in the infusion bottle needle unit moves to the infusion bottle mouth, the needle is inserted into or pulled out of the infusion bottle through a lifting unit, the lifting unit is provided with a clamping assembly, and the infusion tube connected to the needle is passed through the clamping assembly, the infusion bottle needle unit, the driving unit, the positioning sensor unit, and the lifting unit are all connected to a cloud platform. The present invention drives the infusion bottle needle unit to automatically replace the infusion bottle in sequence through the driving unit and the positioning sensor unit, and realizes cloud monitoring through the cloud platform to meet the medical staff's acquisition of the liquid status in the patient's infusion bottle at any time, and can realize remote replacement of the infusion bottle or call the nurse to remove the needle to deal with unexpected situations.

[0008] Furthermore, a clearance groove for placing the driving unit is provided in the infusion bottle placement bin, the clearance groove is provided between a plurality of the empty spaces, and a bottom cover is detachably connected to the bottom of the clearance groove.

[0009] Furthermore, the driving unit includes a servo motor detachably connected to the bottom cover, a rotating shaft of the servo motor passes through the bottom cover and is connected to the infusion bottle needle unit, the servo motor is connected to the positioning sensor unit, and the servo motor is responsible for accurately controlling the positioning of the infusion bottle mouth through the positioning sensor unit.

[0010] Furthermore, the infusion bottle needle insertion unit includes a rotating disk plugged into the rotating shaft, and the lower surface of the rotating disk is connected to the lifting unit.

[0011] Furthermore, the lifting unit includes a support frame connected to the rotating disk, and a second servo is provided on the support frame. A second rotating shaft in the second servo is connected to a gear, and the gear is engaged with a lifting frame with a rack. The needle is clamped in the lifting frame. The needle is inserted into or removed from the infusion bottle as the lifting frame moves. The second servo is responsible for accurately controlling the insertion and removal of the needle.

[0012] Furthermore, a limiting frame is provided on the lower surface of the rotating disk, and the lifting frame moves along the limiting frame, so that the lifting frame moves along the length direction of the limiting frame to avoid deviation.

[0013] Furthermore, the clamping assembly includes a baffle plate disposed at the bottom of the limiting frame and a pressing block disposed at the bottom of the lifting frame. The infusion tube passes between the baffle plate and the pressing block to stop the flow of the liquid medicine in the infusion tube.

[0014] Furthermore, a touch screen connected to the cloud platform is provided on the infusion bottle placement bin, and a hanging ring is detachably connected to the top of the infusion bottle placement bin to facilitate hanging the infusion bottle placement bin on a hanging rack.

[0015] Furthermore, the positioning sensing unit includes a through-beam photoelectric sensor arranged on the lower surface of the bottom cover, a micro switch arranged in the empty space, and a liquid level sensor arranged on the lifting frame, and the liquid level sensor is attached to the infusion tube.

[0016] A method for using a liquid medicine automatic replacement device comprises the following steps: S1: Upload the liquid information, and after confirmation, the cloud platform sends data to the corresponding liquid automatic replacement device; S2: After the medical staff inserts an injection into the patient, they put several infusion bottles into the empty spaces in the infusion bottle storage bin and click on the touch screen to confirm; S3: The infusion bottle placed in the infusion bottle storage bin triggers the micro switch, the system is initialized, and with the assistance of the positioning sensor unit, the servo first drives the needle to the first infusion bottle and connects the needle to the first infusion bottle through the lifting unit; S4: The liquid level sensor detects the liquid level of the medicine in the infusion bottle in real time. The touch screen displays the infusion information and infusion status according to the status of each sensor, and uploads it to the cloud platform in real time; S5: When the liquid level detection sensor detects that the liquid level in the infusion tube is lower than the threshold, the lifting unit separates the needle from the first infusion bottle, and the steering gear 1 drives the needle to the second infusion bottle and connects the needle to the second infusion bottle through the lifting unit; S6: Repeat steps S4-S5. When the liquid level sensor detects that the liquid level in the infusion tube is lower than the threshold, the lifting unit drives the needle down until the infusion tube is compressed by the compression assembly, calls the medical staff to remove the needle for the patient and clicks on the touch screen to stop.

[0017] The specific beneficial effects of the present invention include: 1. The present invention drives the infusion bottle needle insertion unit to automatically replace the infusion bottle in sequence through the driving unit and the positioning sensor unit, and realizes cloud monitoring through the cloud platform to meet the medical staff's needs to obtain the liquid status in the patient's infusion bottle at any time, and can realize remote replacement of the infusion bottle or call the nurse to remove the needle to deal with unexpected situations; 2. The present invention adopts the domestically produced Qinheng CH32V307G431 as the main control chip, which is connected to the ESP8266 wireless transmission module through the serial port, and is responsible for uploading the system's detection data to the cloud platform server, while receiving the control instructions from the cloud platform, and feeding back to the main control chip to realize automatic switching of the infusion bottle, thereby realizing wireless control of the infusion device, reducing labor costs, reducing the workload of medical staff, and ensuring the safety of the patient's infusion; 3. Each component in the present invention can be 3D modeled and 3D printed to meet the needs of various mechanical structures, which is convenient and fast, low cost, simple in structure, easy to operate, and low in later maintenance cost; 4. The program in this invention is independently designed and can be customized according to specific needs to meet the unique needs of users or enterprises; 5. The present invention is equipped with a serial port screen, which can be operated directly on the serial port screen to control the device to deal with emergencies. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0019] Figure 1 is a side view of the present invention; Figure 2 A perspective view of the present invention; Figure 3 It is a schematic diagram of the infusion bottle placement bin in the present invention; Figure 4 It is a schematic diagram of the bottom cover, the rotating disk, the lifting unit, and the pressing assembly in the present invention; Figure 5 for Figure 2 Enlarged view of point A in the middle; Figure 6 It is a schematic diagram of the second steering gear and the lifting frame in the present invention; Figure 7 It is a schematic diagram of the lifting unit, the pressing assembly, and the infusion tube in the present invention; Figure 8 for Figure 7 Enlarged view of point B in the middle; Fig. 9 It is a schematic diagram of the connection between the main control chip and various components in the present invention.

[0020] Description of Figure Numbers: 1. Infusion bottle placement compartment; 2. Infusion bottle needle insertion unit; 3. Driving unit; 4. Infusion bottle; 5. Lifting unit; 6. Pressing assembly; 7. Touch screen; 8. Hanging ring; 11. Vacancy; 20. Infusion tube; 21. Needle; 22. Bottom cover; 23. Rotating plate; 24. Plug-in hole; 31. Rotating axis 1; 32. Yield opening; 50. Support frame; 51. Second steering gear; 52. Second rotating shaft; 53. gear; 54. lifting frame; 55. rack; 56. Limiting frame; 57. Baffle; 58. Pressing block; 230. Cross slot; 231. Sunken notch; 232. Shift lever. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] A liquid medicine automatic replacement device, such as Figure 1 , Figure 2 As shown, it includes an infusion bottle placement bin 1 provided with a plurality of empty spaces 11, an infusion bottle needle unit 2 is provided at the bottom of the infusion bottle placement bin 1, the infusion bottle needle unit 2 is rotated along the rotation axis of the infusion bottle placement bin 1 by a driving unit 3 and the stop position of the infusion bottle needle unit 2 is located by a positioning sensor unit, when the positioning sensor unit detects that the needle 21 in the infusion bottle needle unit 2 moves to the bottle mouth of the infusion bottle 4, the needle 21 is inserted into or pulled out of the infusion bottle 4 through a lifting unit 5, the lifting unit 5 is provided with a clamping assembly 6, and the infusion tube 20 connected to the needle 21 is passed through the clamping assembly 6, the infusion bottle needle unit 2, the driving unit 3, the positioning sensor unit, and the lifting unit 5 are all connected to a cloud platform, and the cloud platform adopts the One NET platform, which can realize cloud monitoring to meet the medical staff's need to obtain the liquid status in the patient's infusion bottle at any time, and can realize remote replacement of the infusion bottle or call the nurse to pull out the needle to deal with unexpected situations.

[0023] Specifically, in terms of software usage: 1. Through the One NET cloud platform, an "automatic fluid replacement system" is designed to receive real-time infusion status. Medical staff can monitor the patient's infusion status in real time through computer web pages or mobile phone APPs. The One NET cloud platform is used to achieve remote monitoring, intelligent reminders, and cloud monitoring to meet the medical staff's needs to obtain the patient's infusion status at any time to deal with unexpected situations; 2. Use STM32CubeMx and KEIL software to complete program design. The program is independently designed and can be customized according to specific needs to meet the unique needs of users or enterprises; 3. Use Visual Studio Code software to complete the connection program design between hardware and cloud platform.

[0024] Specifically, the present invention adopts the domestically produced Qinheng CH32V307G431 as the main control chip, which is connected to the ESP8266 wireless transmission module through the serial port. It is responsible for uploading the system's detection data to the cloud platform server, and at the same time receives control instructions from the cloud platform and feeds them back to the main control chip to realize automatic switching of infusion bottles, thereby realizing wireless control of the infusion device and reducing labor costs.

[0025] Based on the above implementation, as a preferred implementation, Figure 3 As shown, a clearance groove for placing the driving unit 3 is provided at the central axis of the infusion bottle placement bin 1, and the clearance groove is provided between a plurality of the empty spaces 11, and a bottom cover 22 is detachably connected to the bottom of the clearance groove.

[0026] Specifically, the infusion bottle placement bin 1 is cylindrical, the empty spaces 11 are evenly spaced along the circumference of the infusion bottle placement bin 1, the make way grooves are set at the central axis, the empty spaces 11 are distributed along the central axis, and a through hole is set on the outer wall of the infusion bottle placement bin 1 for the touch screen 7 connection line to pass through.

[0027] On the basis of the above embodiment, as a preferred embodiment, the driving unit 3 includes a servo 1 detachably connected to the bottom cover 22, a rotating shaft 31 of the servo 1 passes through the bottom cover 22 and is connected to the infusion bottle needle unit 2, the servo 1 is connected to the positioning sensor unit, and the servo 1 is responsible for accurately controlling the positioning of the bottle mouth of the infusion bottle 4 through the positioning sensor unit.

[0028] On the basis of the above-mentioned embodiment, as a preferred embodiment, the infusion bottle needle insertion unit 2 includes a rotating disk 23 plugged into the rotating shaft 1 31 , and the lower surface of the rotating disk 23 is connected to the lifting unit 5 .

[0029] Specifically, the rotating disk 23 is provided with an inserting hole 24 , and the inserting hole 24 is provided with a groove. The protrusion on the rotating shaft 1 31 is inserted into the groove. When the rotating shaft 1 31 rotates, the rotating disk 23 is driven to rotate.

[0030] Based on the above implementation, as a preferred implementation, Figure 4 As shown, the lifting unit 5 includes a support frame 50 connected to the rotating disk 23, and a second steering gear 51 is arranged on the support frame 50. The second steering gear 51 is fixed to the lower surface of the rotating disk 23 through the support frame 50. The second rotating shaft 52 in the second steering gear 51 is connected to the gear 53, and the gear 53 is meshed with a lifting frame 54 with a rack 55. Figure 6 As shown, as the gear 53 rotates, the rack 55 rises or falls with the gear 53, and the needle 21 is clamped in the lifting frame 54. The needle 21 is inserted into the infusion bottle 4 or pulled out of the infusion bottle 4 along with the lifting frame 54. The servo 2 51 is responsible for accurately controlling the insertion and removal of the needle 21.

[0031] Specifically, a cross slot 230 is provided on the lifting frame 54, and a straight-line lever 232 is provided at the bottom of the needle 21. The cross slot 230 is provided with a vertical clearance groove for placing the needle 21 and a horizontal clearance groove for clamping the lever 232, which is convenient for clamping in or out.

[0032] Preferably, if Figure 8As shown, a sunken notch 231 is provided on the cross slot 230, and the straight-line lever on the needle 21 is stuck in the sunken notch 231, so that the needle 21 is not easy to fall off and is firmly stuck in the sunken notch 231. The needle 21 can only be removed when it is manually disengaged from the groove 231.

[0033] Specifically, the cross slot 230 is made of elastic material to facilitate taking out the needle 21 .

[0034] Based on the above implementation, as a preferred implementation, Figure 5 As shown, a limiting frame 56 is provided on the lower surface of the rotating disk 23 , and the lifting frame 54 moves along the limiting frame 56 .

[0035] Specifically, a side surface of the lifting frame 54 is provided with a clearance opening 32 engaged with the limiting frame 56 , so that the lifting frame 54 can move along the length direction of the limiting frame 56 to avoid deviation.

[0036] Specifically, the cross slot 230 is disposed on the back side of the rack 55 , the clearance opening 32 is disposed on the side of the rack 55 , and the lifting frame 54 is small in size, light in weight, and integrated in functions.

[0037] Based on the above implementation, as a preferred implementation, Figure 7 As shown, the clamping assembly 6 includes a baffle 57 disposed at the bottom of the limiting frame 56 and a pressing block 58 disposed at the bottom of the lifting frame 54 , and the infusion tube 20 is passed between the baffle 57 and the pressing block 58 .

[0038] Specifically, when the liquid level detection sensor detects that the liquid level in the infusion tube 20 is lower than the threshold, the lifting unit 5 lowers the needle 21 until the infusion tube 20 is pressed between the baffle 57 and the pressing block 58, so that the liquid medicine in the infusion tube 20 stops flowing. When the last bottle of liquid medicine of the patient is injected, the pressing block 58 is lowered until it is pressed on the infusion tube 20, and the infusion tube 20 between the pressing block 58 and the baffle 57 is deformed, preventing the liquid medicine from continuing to flow, thereby avoiding the risk of blood return caused by the nurse not being in place in time and the injection of liquid medicine being completed.

[0039] Specifically, each surface of the lifting frame 54 has different functions. The side surfaces are used to insert the needle 21, drive the lifting frame 54 to move through the engagement of the rack 55 and the gear 53, and limit the lifting frame 54. The top surface is used to clamp the needle 21 and drive the needle 21 to move. The pressure block 58 arranged on the bottom surface is used to compress the infusion tube 20. It has complete functions.

[0040] On the basis of the above-mentioned implementation manner, as a preferred implementation manner, the infusion bottle placement bin 1 is provided with a touch screen 7 connected to the cloud platform, and a 3.2-inch OLED touch screen is used as a human-computer interaction interface to provide intuitive operation prompts and system status display, so that medical staff can easily monitor the infusion process.

[0041] Specifically, a hanging ring 8 is detachably connected to the top of the infusion bottle placement bin 1, so as to facilitate hanging the infusion bottle placement bin 1 on a hanging rack.

[0042] On the basis of the above-mentioned embodiment, as a preferred embodiment, the positioning sensing unit includes a through-beam photoelectric sensor arranged on the lower surface of the bottom cover 22, a micro switch arranged in the empty space 11, and a liquid level sensor arranged on the lifting frame 54, and the liquid level sensor is in contact with the infusion tube 20.

[0043] Specifically, the opposing beam photoelectric sensor is an infrared opposing beam photoelectric sensor, which is arranged between adjacent spaces 11 and is used to detect the position of the infusion bottle 4 to ensure that the steering gear 1 can accurately align with the bottle mouth of the infusion bottle 4 .

[0044] Specifically, when the infusion bottle 4 is placed in the empty space 11, the infusion bottle 4 presses down the moving contact of the micro switch, so that the moving contact is quickly connected with the fixed contact, that is, the micro switch is triggered to detect the position and quantity of the medicine bottles.

[0045] Specifically, the liquid level sensor uses a non-contact capacitive liquid level sensor to detect the status of the liquid in the infusion bottle 4 in real time, and uploads the relevant data to the cloud platform through the ESP8266 wireless transmission module. Once the liquid is found to be about to run out, a signal is immediately sent to the system. The ESP8266 wireless transmission module is responsible for uploading the system's operating data to the cloud platform server and receiving control instructions from the cloud platform.

[0046] Specifically, the device of the present invention is connected to an external power source or equipped with a battery.

[0047] Specifically, the components in the present invention can be 3D modeled and 3D printed to meet the needs of various mechanical structures, which is convenient, fast, low-cost, simple in structure, easy to operate, and low in later maintenance costs. The circuit board is designed using Jiali Chuang EDA to realize the main control power supply communication, sensor and steering gear drive.

[0048] A method for using a liquid medicine automatic replacement device comprises the following steps: S1: Fill in the infusion person and infusion solution information on the PC or mobile terminal, upload the solution information, and after confirmation, the cloud platform sends the data to the corresponding automatic solution replacement device; S2: After the medical staff has given the patient an injection, they put several infusion bottles 4 into the empty space 11 of the infusion bottle storage compartment 1 and click on the touch screen 7 to confirm; S3: The infusion bottle 4 placed in the infusion bottle placement bin 1 triggers the micro switch, the system is initialized, and with the assistance of the positioning sensor unit, the servo 1 drives the needle 21 to the first infusion bottle and connects the needle 21 to the first infusion bottle through the lifting unit 5; S4: The liquid level sensor detects the liquid level of the medicinal solution in the infusion bottle 4 in real time, and the touch screen 7 displays the infusion information and infusion status according to the status of each sensor, and uploads it to the cloud platform in real time; S5: When the liquid level detection sensor detects that the liquid level in the infusion tube 20 is lower than the threshold, the lifting unit 5 separates the needle 21 from the first infusion bottle, and the steering gear 1 drives the needle 21 to the second infusion bottle and connects the needle 21 to the second infusion bottle through the lifting unit 5; S6: Repeat steps S4-S5. When the liquid level sensor detects that the liquid level in the infusion tube 20 is lower than the threshold, the lifting unit 5 drives the needle 21 to descend until the infusion tube 20 is clamped by the clamping assembly 6. The medical staff is called to remove the needle for the patient and click Stop on the touch screen 7.

[0049] Specifically, when the patient needs to go to the toilet or temporarily leave the infusion position, he clicks the Pause Infusion button on the touch screen 7 (it is only a system-level pause, in order to facilitate the infusion person to take away the single bottle of liquid medicine being infused). At this time, the patient can take away the single bottle of liquid medicine while maintaining the infusion state to deal with emergencies. Then put the infusion bottle 4 back to its original position, click the Continue Infusion button on the touch screen 7, and the system resumes the infusion state.

[0050] Specifically, the device is equipped with a serial port screen, and the infusion device can be controlled directly on the serial port screen to cope with emergencies.

[0051] The details not described in detail in the present invention are all conventional technical means known to those skilled in the art.

[0052] The above content shows and describes the basic principles, main features and beneficial effects of the present invention. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A liquid medicine automatic replacement device, characterized in that: The invention comprises an infusion bottle placement bin (1) provided with a plurality of empty spaces (11), an infusion bottle needle insertion unit (2) being provided at the bottom of the infusion bottle placement bin (1), the infusion bottle needle insertion unit (2) being rotated along the rotation axis of the infusion bottle placement bin (1) by a driving unit (3) and the stop position of the infusion bottle needle insertion unit (2) being positioned by a positioning sensor unit, when the positioning sensor unit detects that a needle (21) in the infusion bottle needle insertion unit (2) moves to the bottle mouth of an infusion bottle (4), the needle (21) is inserted into or pulled out of the infusion bottle (4) by a lifting unit (5), the lifting unit (5) being provided with a clamping assembly (6), an infusion tube (20) connected to the needle (21) being passed through the clamping assembly (6), the infusion bottle needle insertion unit (2), the driving unit (3), the positioning sensor unit and the lifting unit (5) being all connected to a cloud platform.

2. The automatic liquid medicine replacement device according to claim 1, characterized in that: The infusion bottle placement compartment (1) is provided with a clearance groove for placing the drive unit (3), the clearance groove is arranged between a plurality of the empty spaces (11), and a bottom cover (22) is detachably connected to the bottom of the clearance groove.

3. The automatic liquid medicine replacement device according to claim 2, characterized in that: The driving unit (3) comprises a steering gear 1 detachably connected to the bottom cover (22), a rotating shaft 1 (31) of the steering gear 1 passing through the bottom cover (22) and connected to the infusion bottle needle insertion unit (2), and the steering gear 1 is connected to the positioning sensor unit.

4. The automatic liquid medicine replacement device according to claim 3, characterized in that: The infusion bottle needle insertion unit (2) comprises a rotating disk (23) plugged into the rotating shaft 1 (31), and the lower surface of the rotating disk (23) is connected to the lifting unit (5).

5. The automatic liquid medicine replacement device according to claim 4, characterized in that: The lifting unit (5) comprises a support frame (50) connected to the rotating disk (23), a second steering gear (51) being arranged on the support frame (50), a second rotating shaft (52) in the second steering gear (51) being connected to a gear (53), the gear (53) being meshed with a lifting frame (54) having a rack (55), and the needle head (21) being clamped in the lifting frame (54).

6. The automatic liquid medicine replacement device according to claim 5, characterized in that: A limiting frame (56) is provided on the lower surface of the rotating disk (23), and the lifting frame (54) moves along the limiting frame (56).

7. The automatic liquid medicine replacement device according to claim 6, characterized in that: The clamping assembly (6) comprises a baffle (57) arranged at the bottom of the limiting frame (56) and a pressing block (58) arranged at the bottom of the lifting frame (54), and the infusion tube (20) is passed between the baffle (57) and the pressing block (58).

8. The automatic liquid medicine replacement device according to any one of claims 1 to 7, characterized in that: The infusion bottle placement bin (1) is provided with a touch screen (7) connected to the cloud platform, and the top of the infusion bottle placement bin (1) is detachably connected with a hanging ring (8).

9. The automatic liquid medicine replacement device according to claim 8, characterized in that: The positioning sensing unit comprises a through-beam photoelectric sensor arranged on the lower surface of the bottom cover (22), a micro switch arranged in the empty space (11), and a liquid level sensor arranged on the lifting frame (54), wherein the liquid level sensor is in contact with the infusion tube (20).

10. A method for using a liquid medicine automatic replacement device, characterized in that: The automatic liquid medicine replacement device according to claims 1 to 9 is used in the following steps: S1: Upload the liquid information, and after confirmation, the cloud platform sends data to the corresponding liquid automatic replacement device; S2: After the medical staff has given the patient an injection, they load a number of infusion bottles (4) into the empty spaces (11) of the infusion bottle storage compartment (1) and click on the touch screen (7) to confirm; S3: the infusion bottle (4) placed in the infusion bottle storage bin (1) triggers the micro switch, the system is initialized, and with the assistance of the positioning sensor unit, the steering gear drives the needle (21) to the first infusion bottle and connects the needle (21) to the first infusion bottle through the lifting unit (5); S4: The liquid level sensor detects the liquid level of the Chinese medicine liquid in the infusion bottle (4) in real time, and the touch screen (7) displays the infusion information and infusion status according to the status of each sensor, and uploads it to the cloud platform in real time; S5: When the liquid level detection sensor detects that the liquid level in the infusion tube (20) is lower than a threshold value, the lifting unit (5) drives the needle (21) to separate from the first infusion bottle, the steering gear drives the needle (21) to move to the bottle mouth of the second infusion bottle, and then the lifting unit (5) drives the needle (21) to be inserted into the second infusion bottle; S6: Steps S4-S5 are repeated. When the liquid level sensor detects that the liquid level in the infusion tube (20) is lower than the threshold value, the lifting unit (5) drives the needle (21) to descend until the infusion tube (20) is compressed by the compression assembly (6). The medical staff is called to remove the needle from the patient and click Stop on the touch screen (7).

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