Hydrops discharge equipment for oncology department nursing

Abstract

The invention belongs to the technical field of effusion discharge equipment, and particularly relates to effusion discharge equipment for oncology nursing, which comprises a barrel, one end of the barrel is provided with a liquid inlet pipe and a liquid outlet pipe which are distributed up and down, the liquid inlet pipe is sleeved with a hose, the other end of the hose is sleeved with a needle, and a liquid pumping mechanism is arranged in the barrel. A liquid pumping speed collecting module is fixedly connected into the liquid inlet pipe, a control screen is fixed to the top of the outer wall of the circumference of the barrel, a central processing unit is arranged in the control screen, and the central processing unit is electrically connected with a blood pressure collecting module. According to the invention, the effusion flow and the blood pressure data of the patient are monitored in real time through the liquid extraction speed acquisition module and the blood pressure acquisition module. The central processing unit compares the evaluation coefficient with a preset evaluation coefficient reference threshold value, the working state of the liquid pumping mechanism is controlled according to a judgment result, the liquid pumping speed can be intelligently adjusted under different conditions, and discomfort or adverse effects caused by the improper liquid pumping speed to a patient are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of effusion discharge equipment, and in particular to an effusion discharge equipment for oncology nursing. Background Art

[0002] Tumors can cause abdominal fluid accumulation. When the amount of fluid in the abdominal cavity exceeds 200 ml under pathological conditions, it is called ascites. When a large amount of ascites affects the patient's breathing or the patient's abdominal distension symptoms are severe and unbearable, ascites drainage can be used to relieve symptoms. In oncology nursing, the drainage of fluid in patients is a common and important operation.

[0003] Traditional effusion drainage equipment often lacks an intelligent control mechanism, and the speed of fluid extraction is difficult to adjust in real time according to the patient's specific physical condition. This lack of intelligent control may cause the fluid extraction speed to be too fast, causing discomfort to the patient and even causing adverse effects such as blood pressure fluctuations and physical damage; if the fluid extraction speed is too slow, it will prolong the time for fluid drainage, increase the patient's pain and risk of infection. Therefore, the development of a fluid extraction device that can intelligently control the fluid extraction speed and monitor key data in real time has important clinical practical significance. Summary of the invention

[0004] Based on the technical problems existing in the prior art, the present invention proposes a fluid discharge device for oncology nursing.

[0005] The present invention proposes a fluid discharge device for oncology nursing, comprising a cylinder, one end of which is provided with a liquid inlet pipe and a liquid outlet pipe distributed up and down, a hose is sleeved on the liquid inlet pipe, the other end of the hose is sleeved on the needle, a liquid pumping mechanism is arranged in the cylinder, a liquid pumping speed acquisition module is fixedly connected in the liquid inlet pipe, a control screen is fixed on the top of the circumferential outer wall of the cylinder, a central processing unit is arranged inside the control screen, the central processing unit is electrically connected to a blood pressure acquisition module, the liquid pumping speed acquisition module is used for real-time monitoring of the fluid flow, the blood pressure acquisition module is used for real-time monitoring of the patient's blood pressure data, the central processing unit is used for receiving the data collected by the liquid pumping speed acquisition module and the blood pressure acquisition module, and generating an evaluation coefficient after comprehensive analysis, and judging whether the liquid pumping speed is within an appropriate range by comparing the evaluation coefficient with a preset evaluation coefficient reference threshold value, and then controlling the working state of the liquid pumping mechanism according to the evaluation result; one end of the hose is connected to the liquid inlet pipe, and the other end is connected to the needle, and then Insert the needle into the patient's body and fix the needle on the patient, then fix the blood pressure collection module to the patient's aorta, and connect the effusion collection bag to the outlet tube. Then you can start the device through the button on the control panel, the pumping mechanism will generate negative pressure in the cylinder, and then the effusion will enter the cylinder from the needle through the hose, and flow into the effusion collection bag through the outlet tube to complete the discharge of the effusion. During this process, the pumping speed collection module will monitor the effusion flow rate during the pumping of the effusion in real time, and the blood pressure collection module will monitor the patient's blood pressure data in real time. The central processing unit will receive the data collected by the pumping speed collection module and the blood pressure collection module, and generate an evaluation coefficient after comprehensive analysis. By comparing the evaluation coefficient with the pre-set evaluation coefficient reference threshold, it is determined whether the pumping speed is within the appropriate range, and then the working state of the pumping mechanism is controlled according to the evaluation result, thereby intelligently controlling the pumping speed of the effusion to avoid discomfort to the patient and adverse effects.

[0006] Preferably, the liquid pumping mechanism includes a piston located inside the cylinder, a piston rod is fixed to one end of the piston, the other end of the piston rod passes through the end of the cylinder away from the liquid inlet pipe, a rack is fixedly connected in the groove on the top of the piston rod, the end of the cylinder away from the liquid inlet pipe is fixedly connected to a driving motor, the output shaft of the driving motor is fixedly connected to a gear, and the gear is meshingly connected to the rack; after receiving relevant instructions from the central processing unit, the driving motor will appropriately adjust the speed, and then drive the gear to rotate through the output shaft, the gear drives the piston rod to move through the meshing rack, and the piston rod synchronously drives the piston to move in the cylinder, thereby controlling the liquid pumping speed.

[0007] Preferably, the control panel also includes a screen and an alarm module. The screen is used to display relevant parameters. The alarm module will alarm after receiving instructions from the central processing unit. The effusion flow rate and the patient's blood pressure data collected by the pumping speed acquisition module and the blood pressure acquisition module, as well as relevant parameters such as the current pumping speed will be displayed on the screen. When the central processing unit determines that the current pumping speed is not within the appropriate range or the patient's blood pressure is abnormal based on the comparison result of the evaluation coefficient, the central processing unit will send relevant instructions to the alarm module, thereby controlling the alarm module to alarm.

[0008] Preferably, a first one-way valve is fixedly connected to the liquid inlet pipe, and a second one-way valve is fixedly connected to the liquid outlet pipe; when the piston moves toward the end away from the liquid inlet pipe to extract liquid, the second one-way valve can be used to prevent the accumulated liquid in the liquid collection bag from flowing back into the cylinder from the liquid outlet pipe; when the piston moves toward the end close to the liquid inlet pipe, the accumulated liquid extracted in the cylinder will be pushed into the liquid collection bag from the liquid outlet pipe. At this time, the first one-way valve can be used to prevent the accumulated liquid extracted in the cylinder from flowing back into the hose from the liquid inlet pipe.

[0009] Preferably, a wiring port is provided at the rear end of the control panel, and the blood pressure collection module is connected to the wiring port by plugging and unplugging a wire; by plugging the wire into the wiring port, the module can be powered on and used, and the wire plug-and-unplug connection method is convenient for disassembly.

[0010] Preferably, a power module is fixedly connected to one side of the circumferential outer wall of the cylinder, and a charging interface is provided on the side of the power module; the power module can be used to power the blood pressure acquisition module, the control screen, the liquid pumping speed acquisition module and the drive motor. The rechargeable design makes the use of the device more convenient.

[0011] Preferably, a turntable is fixed on the needle, and the needle is connected to a sleeve disc that can be sleeved on the turntable through rotation of the turntable, a double-sided tape is fixed to the side of the sleeve disc away from the hose, a pair of docking blocks is provided on the circumferential outer wall of the turntable, and a pair of notches matching the docking blocks are opened on the circumferential inner wall of the sleeve disc; the sleeve disc is fixed to the patient's body part by the double-sided tape, and then the needle passes through the sleeve disc and is inserted into the patient's body, and then the docking blocks on the turntable are aligned with the notches so that the turntable enters the inside of the sleeve disc, and then the turntable is rotated so that the docking blocks and the notch are staggered, so that the needle is fixed by the sleeve disc, thereby preventing the needle from shaking randomly when draining the effusion, thereby affecting the drainage process.

[0012] Preferably, the calculation formula of the evaluation coefficient is:

[0013]

[0014] Wherein, V: real-time pumping speed (mL / min); ΔMAP: mean arterial pressure change (current MAP-initial MAP, unit: mmHg); V max : Preset maximum safe pumping speed (set according to the patient's physical condition and the amount of fluid accumulation); MAP base : The patient's basal mean arterial pressure (MAP in the initial stable state).

[0015] Preferably, the calculation formula of the mean arterial pressure (MAP) is:

[0016]

[0017] Among them, SBP: systolic blood pressure; DBP: diastolic blood pressure.

[0018] Preferably, the adjustment rule of the working state of the pumping mechanism is as follows:

[0019] When K<0.3: it indicates that the current pumping speed is in a relatively slow range, and a speed-up signal is generated. After receiving the speed-up signal, the central processing unit generates an increase signal and transmits the increase signal to the drive motor. The drive motor increases the current rotation speed, thereby gradually increasing the pumping speed (such as increasing by % each time); when 0.3≤K≤0.7: it indicates that the current pumping speed is in an appropriate range, and a normal signal is generated. After receiving the normal signal, the central processing unit generates a maintenance signal and transmits the maintenance signal to the drive motor. The drive motor maintains the current rotation speed, thereby maintaining the current pumping speed; when K>0.7 or ΔMAP<-15mmHg: it indicates that the current pumping speed is in an inappropriate range, and a warning signal is generated. After receiving the warning signal, the central processing unit generates a reduction signal and transmits the reduction signal to the drive motor. The drive motor reduces the current rotation speed or stops rotating, thereby immediately reducing the pumping speed or suspending the pumping.

[0020] Compared with the prior art, the present invention provides a fluid discharge device for oncology nursing, which has the following beneficial effects:

[0021] 1. A fluid discharge device for oncology nursing, which monitors the fluid flow and patient blood pressure data in real time through the fluid extraction speed acquisition module and the blood pressure acquisition module. The central processing unit comprehensively analyzes these data to generate an evaluation coefficient, and compares it with the preset evaluation coefficient reference threshold, so as to accurately determine whether the fluid extraction speed is appropriate. The working state of the fluid extraction mechanism is controlled according to the judgment result, and the fluid extraction speed can be intelligently adjusted under different circumstances to avoid discomfort or adverse effects on patients caused by improper fluid extraction speed, thereby improving the safety and effectiveness of the fluid discharge process. For example, when the evaluation shows that the fluid extraction speed is slow, the device can automatically speed up; maintain the current state when the speed is appropriate; and reduce the speed or pause in time if the speed is not appropriate.

[0022] 2. A fluid discharge device for oncology nursing, the device is equipped with a control screen, and its screen can display relevant parameters such as fluid flow, patient blood pressure data, and current drainage speed. Medical staff can grasp the key information in the drainage process in real time, which is convenient for timely detection of problems and taking corresponding measures. At the same time, when the central processing unit determines that the drainage speed is inappropriate or the patient's blood pressure is abnormal, the alarm module will alarm in time to remind medical staff to deal with it, enhancing the real-time attention and early warning capabilities of the patient's condition.

[0023] 3. A fluid discharge device for oncology nursing, the needle is fixed by the cooperation of the turntable and the sleeve disc, the sleeve disc is fixed to the patient's body through a double-sided sticker, after the needle passes through the sleeve disc and is inserted into the patient's body, the turntable is rotated to stagger the docking block and the notch, so that the needle is firmly fixed. This can avoid the needle from shaking randomly during the process of draining the fluid, ensure the stability of the drainage process, and help improve the efficiency and accuracy of fluid extraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of a fluid discharge device for oncology nursing proposed by the present invention;

[0025] Figure 2 This is a schematic diagram of the overall structure of a fluid discharge device for oncology nursing proposed by the present invention;

[0026] Figure 3 This is a schematic diagram of the cylinder structure of a fluid discharge device for oncology nursing proposed by the present invention;

[0027] Figure 4 This is a schematic diagram of the internal structure of a cylinder of a fluid discharge device for oncology nursing proposed by the present invention;

[0028] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure at point A;

[0029] Figure 6 A schematic diagram of the connection between a control panel and a blood pressure collection module of a fluid discharge device for oncology nursing proposed by the present invention;

[0030] Figure 7 This is a schematic structural diagram of a fixing assembly of a fluid discharge device for oncology nursing proposed by the present invention.

[0031] In the figure: 1. cylinder; 2. liquid outlet pipe; 3. liquid inlet pipe; 4. hose; 5. needle; 6. pumping speed acquisition module; 7. control panel; 8. blood pressure acquisition module; 9. screen; 10. alarm module; 11. power module; 12. piston rod; 13. piston; 14. rack; 15. drive motor; 16. gear; 17. first one-way valve; 18. second one-way valve; 19. wiring port; 20. wire; 21. sleeve; 22. notch; 23. turntable; 24. docking block; 25. double-sided tape. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] Reference Figure 1-Figure 7 , a fluid discharge device for oncology nursing, comprising a cylinder 1, one end of the cylinder 1 is provided with a liquid inlet pipe 3 and a liquid outlet pipe 2 distributed up and down, a hose 4 is sleeved on the liquid inlet pipe 3, and the other end of the hose 4 is sleeved on the needle 5, a liquid pumping mechanism is arranged in the cylinder 1, a liquid pumping speed acquisition module 6 is fixedly connected in the liquid inlet pipe 3, a control screen 7 is fixed on the top of the circumferential outer wall of the cylinder 1, a central processing unit is arranged inside the control screen 7, and the central processing unit is electrically connected with a blood pressure acquisition module 8, the liquid pumping speed acquisition module 6 is used to monitor the flow of effusion in real time, and the blood pressure acquisition module 8 is used to monitor the blood pressure data of the patient in real time, and the central processing unit is used to receive the data collected by the liquid pumping speed acquisition module 6 and the blood pressure acquisition module 8, and generate an evaluation coefficient after comprehensive analysis, and compare the evaluation coefficient with a preset evaluation coefficient reference threshold value to judge whether the liquid pumping speed is within an appropriate range, and then control the working state of the liquid pumping mechanism according to the evaluation result;

[0035] It should be noted that the pumping speed acquisition module 6 may be an electromagnetic flowmeter or other equipment capable of real-time monitoring of the effluent flow rate. The pumping speed acquisition module 6 is not specifically limited here and may be selected according to actual needs.

[0036] The blood pressure collection module 8 may be a non-invasive sphygmomanometer or other equipment capable of monitoring the patient's blood pressure data in real time. The blood pressure collection module 8 is not specifically limited here and may be selected according to actual needs;

[0037] When in use, one end of the hose 4 is connected to the liquid inlet pipe 3, and the other end is connected to the needle 5, and then the needle 5 is inserted into the patient's body part and fixed to the patient, and then the blood pressure collection module 8 is fixed to the patient's aorta, and the effusion collection bag is connected to the outlet pipe 2, and then the device can be started by pressing the button on the control panel 7, and the liquid extraction mechanism will generate negative pressure in the cylinder 1, and then the effusion will enter the cylinder 1 from the needle 5 through the hose 4, and flow into the effusion collection bag through the outlet pipe 2 to complete the discharge of the effusion. In this process, the liquid extraction speed collection module 6 will monitor the effusion flow rate when the effusion is extracted in real time, and the blood pressure collection module 8 will monitor the patient's blood pressure data in real time. The central processing unit will receive the data collected by the liquid extraction speed collection module 6 and the blood pressure collection module 8, and generate an evaluation coefficient after comprehensive analysis, and compare the evaluation coefficient with the preset evaluation coefficient reference threshold to determine whether the liquid extraction speed is within the appropriate range, and then control the working state of the liquid extraction mechanism according to the evaluation result, thereby intelligently controlling the extraction speed of the effusion to avoid discomfort to the patient and adverse effects.

[0038] The pumping mechanism includes a piston 13 located inside the cylinder 1, a piston rod 12 is fixed to one end of the piston 13, the other end of the piston rod 12 passes through the end of the cylinder 1 away from the liquid inlet pipe 3, a rack 14 is fixedly connected in the groove on the top of the piston rod 12, and a drive motor 15 is fixedly connected to the end of the cylinder 1 away from the liquid inlet pipe 3, and a gear 16 is fixedly connected to the output shaft of the drive motor 15, and the gear 16 is meshed with the rack 14;

[0039] When in use, after receiving relevant instructions from the central processing unit, the driving motor 15 will adjust the speed appropriately, and then drive the gear 16 to rotate through the output shaft. The gear 16 drives the piston rod 12 to move through the meshing rack 14. The piston rod 12 synchronously drives the piston 13 to move in the cylinder 1, thereby controlling the liquid pumping speed.

[0040] Furthermore, the control screen 7 also includes a screen 9 and an alarm module 10. The screen 9 is used to display relevant parameters. The alarm module 10 will alarm after receiving the instruction from the central processing unit;

[0041] When in use, the effusion flow rate and the patient's blood pressure data collected by the pumping speed acquisition module 6 and the blood pressure acquisition module 8, as well as relevant parameters such as the current pumping speed will be displayed on the screen 9. When the central processing unit determines that the current pumping speed is not within the appropriate range or the patient's blood pressure is abnormal based on the comparison result of the evaluation coefficient, the central processing unit will send relevant instructions to the alarm module 10, thereby controlling the alarm module 10 to sound an alarm.

[0042] Among them, a first one-way valve 17 is fixedly connected in the liquid inlet pipe 3, and a second one-way valve 18 is fixedly connected in the liquid outlet pipe 2;

[0043] During use, when the piston 13 moves toward the end away from the liquid inlet pipe 3 to extract liquid, the second one-way valve 18 can be used to prevent the accumulated liquid in the liquid collection bag from flowing back into the cylinder 1 from the liquid outlet pipe 2. When the piston 13 moves toward the end close to the liquid inlet pipe 3, the accumulated liquid extracted in the cylinder 1 will be pushed into the liquid collection bag from the liquid outlet pipe 2. At this time, the first one-way valve 17 can be used to prevent the accumulated liquid extracted in the cylinder 1 from flowing back into the hose 4 from the liquid inlet pipe 3.

[0044] Furthermore, a connection port 19 is provided at the rear end of the control panel 7, and the blood pressure collection module 8 is plug-in connected to the connection port 19 via a wire 20;

[0045] When in use, the wire 20 is plugged into the wiring port 19, and the device can be powered on. The plug-in connection of the wire 20 is convenient for disassembly.

[0046] Furthermore, a power module 11 is fixedly connected to one side of the circumferential outer wall of the cylinder 1, and a charging interface is provided on the side of the power module 11;

[0047] When in use, the power module 11 can be used to power the blood pressure acquisition module 8, the control screen 7, the pumping speed acquisition module 6 and the drive motor 15. The rechargeable design makes the use of the device more convenient.

[0048] Furthermore, a rotating disk 23 is fixedly sleeved on the needle 5, and the needle 5 is rotatably connected to a sleeve disk 21 that can be sleeved on the rotating disk 23 through the rotating disk 23. A double-sided sticker 25 is fixed on the side of the sleeve disk 21 away from the hose 4. A pair of docking blocks 24 are provided on the circumferential outer wall of the rotating disk 23, and a pair of notches 22 matching the docking blocks 24 are opened on the circumferential inner wall of the sleeve disk 21.

[0049] When in use, the sleeve disc 21 is fixed to the patient's body part by the double-sided tape 25, and then the needle 5 is passed through the sleeve disc 21 and inserted into the patient's body, and then the docking block 24 on the turntable 23 is aligned with the notch 22, so that the turntable 23 enters the sleeve disc 21, and then the turntable 23 is rotated so that the docking block 24 and the notch 22 are staggered. In this way, the needle 5 is fixed by the sleeve disc 21, thereby preventing the needle 5 from shaking randomly when draining the effusion, thereby affecting the drainage process.

[0050] In another embodiment, the calculation formula of the evaluation coefficient is:

[0051]

[0052] Wherein, V: real-time pumping speed (mL / min); ΔMAP: mean arterial pressure change (current MAP-initial MAP, unit: mmHg); V max : Preset maximum safe pumping speed (set according to the patient's physical condition and the amount of fluid accumulation); MAP base : The patient's basal mean arterial pressure (MAP in the initial stable state).

[0053] Furthermore, the calculation formula of mean arterial pressure (MAP) is:

[0054]

[0055] Among them, SBP: systolic blood pressure; DBP: diastolic blood pressure.

[0056] Furthermore, the adjustment rules of the working state of the pumping mechanism are as follows:

[0057] When K<0.3: it indicates that the current pumping speed is within a relatively slow range, and a speed-up signal is generated. After receiving the speed-up signal, the central processing unit generates an increase signal and transmits the increase signal to the drive motor 15. The drive motor 15 increases the current rotation speed, thereby gradually increasing the pumping speed (such as increasing by 5% each time); when 0.3≤K≤0.7: it indicates that the current pumping speed is within an appropriate range, and a normal signal is generated. After receiving the normal signal, the central processing unit generates a maintenance signal and transmits the maintenance signal to the drive motor 15. The drive motor 15 maintains the current rotation speed, thereby maintaining the current pumping speed; when K>0.7 or ΔMAP<-15mmHg: it indicates that the current pumping speed is within an inappropriate range, and an early warning signal is generated. After receiving the early warning signal, the central processing unit generates a reduction signal and transmits the reduction signal to the drive motor 15. The drive motor 15 reduces the current rotation speed or stops rotating, thereby immediately reducing the pumping speed or suspending the pumping.

[0058] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fluid discharge device for oncology nursing, comprising a cylinder (1), characterized in that: One end of the cylinder (1) is provided with a liquid inlet pipe (3) and a liquid outlet pipe (2), a hose (4) is sleeved on the liquid inlet pipe (3), and the other end of the hose (4) is sleeved on the needle (5), a liquid pumping mechanism is arranged in the cylinder (1), a liquid pumping speed acquisition module (6) is fixedly connected in the liquid inlet pipe (3), a control screen (7) is fixed on the circumferential outer wall of the cylinder (1), a central processing unit is arranged inside the control screen (7), and the central processing unit is electrically connected to the blood pressure acquisition module (8), and the central processing unit is used to receive data collected by the liquid pumping speed acquisition module (6) and the blood pressure acquisition module (8), generate an evaluation coefficient, compare the evaluation coefficient with a reference threshold value, and control the working state of the liquid pumping mechanism according to the evaluation result.

2. The effusion discharge device for oncology nursing according to claim 1, characterized in that: The pumping mechanism comprises a piston (13), one end of the piston (13) is fixed with a piston rod (12), the other end of the piston rod (12) passes through the cylinder (1), the top of the piston rod (12) is fixedly connected with a rack (14), one end of the cylinder (1) is fixedly connected with a driving motor (15), the output shaft of the driving motor (15) is fixedly connected with a gear (16), and the gear (16) is meshingly connected with the rack (14).

3. The effusion discharge device for oncology nursing according to claim 1, characterized in that: The control panel (7) further comprises a screen (9) and an alarm module (10). The screen (9) is used to display relevant parameters, and the alarm module (10) will sound an alarm after receiving an instruction from the central processing unit.

4. The effusion discharge device for oncology nursing according to claim 2, characterized in that: A first one-way valve (17) is fixedly connected inside the liquid inlet pipe (3), and a second one-way valve (18) is fixedly connected inside the liquid outlet pipe (2).

5. The effusion discharge device for oncology nursing according to claim 1, characterized in that: The rear end of the control panel (7) is provided with a wiring port (19), and the blood pressure collection module (8) is plug-in connected to the wiring port (19) via a wire (20).

6. The effusion discharge device for oncology nursing according to claim 1, characterized in that: A power module (11) is fixedly connected to one side of the circumferential outer wall of the cylinder (1), and a charging interface is provided on the side of the power module (11).

7. The effusion discharge device for oncology nursing according to claim 1, characterized in that: A rotating disk (23) is fixedly sleeved on the needle head (5), and the needle head (5) is rotatably connected to the sleeve disk (21). A double-sided tape (25) is fixed on one side of the sleeve disk (21). A pair of docking blocks (24) are provided on the circumferential outer wall of the rotating disk (23), and a pair of notches (22) are opened on the circumferential inner wall of the sleeve disk (21).

8. The effusion discharge device for oncology nursing according to claim 1, characterized in that: The calculation formula of the evaluation coefficient is: Wherein, V: real-time pumping speed; ΔMAP: mean arterial pressure change; V max : Preset maximum safe pumping speed; MAP base :The patient's basic mean arterial pressure.

9. The effusion discharge device for oncology nursing according to claim 8, characterized in that: The calculation formula of the mean arterial pressure (MAP) is: Among them, SBP: systolic blood pressure; DBP: diastolic blood pressure.

10. The effusion discharge device for oncology nursing according to claim 9, characterized in that: The adjustment rules of the working state of the pumping mechanism are as follows: When K<0.3: the pumping speed is gradually increased; when 0.3≤K≤0.7: the current pumping speed is maintained; when K>0.7 or ΔMAP<-15mmHg: the pumping speed is immediately reduced or the pumping is suspended.

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