A hydrops drainage device for oncology care

Abstract

The application belongs to the technical field of effusion drainage equipment, and particularly relates to an effusion drainage equipment for oncology nursing, which comprises a cylinder, one end of the cylinder is provided with an upper and lower distributed liquid inlet pipe and a liquid outlet pipe, a hose is sleeved on the liquid inlet pipe, the other end of the hose is sleeved on a 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 fixedly arranged on the top of the outer wall of the cylinder, a central processing unit is arranged in the control screen, and a blood pressure acquisition module is electrically connected to the central processing unit. In the application, the liquid pumping speed acquisition module and the blood pressure acquisition module are used for monitoring the effusion flow and the blood pressure data of a patient in real time. The central processing unit compares the data with a preset evaluation coefficient reference threshold value, and controls the working state of the liquid pumping mechanism according to the judgment result, so that the liquid pumping speed can be intelligently adjusted under different conditions, and the patient is prevented from being affected by improper liquid pumping speed.

Description

Technical Field

[0001] This invention relates to the field of fluid drainage equipment, and more particularly to a fluid drainage device for oncology nursing care. Background Technology

[0002] Tumors can cause ascites, and 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 is severe and unbearable, paracentesis can be performed to relieve symptoms. In oncology nursing, the drainage of fluid from the patient's body is a common and important procedure.

[0003] Traditional fluid drainage devices often lack intelligent control mechanisms. The currently known control mechanism is "decelerating when blood pressure drops," but it doesn't address the adjustment of the drainage speed during periods of rising blood pressure. This makes it difficult to adjust the drainage speed in real-time according to the patient's specific condition. Such devices, lacking intelligent control, may drain fluid too quickly, causing discomfort and even adverse effects such as blood pressure fluctuations and physical injury. Conversely, if the drainage speed is too slow, it prolongs the drainage time, increasing patient suffering and the risk of infection. Therefore, developing a fluid drainage device that can intelligently control the drainage speed and monitor key data in real-time has significant clinical implications. Summary of the Invention

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

[0005] This invention proposes a fluid drainage device for oncology nursing, comprising a cylindrical body. One end of the cylindrical body has an inlet pipe and an outlet pipe distributed vertically. A flexible tube is fitted onto the inlet pipe, and the other end of the flexible tube is fitted onto a needle. A suction mechanism is installed inside the cylindrical body. A suction speed acquisition module is fixedly connected inside the inlet pipe. A control panel is fixed to the top of the outer circumference of the cylindrical body. A central processing unit is installed inside the control panel, and the central processing unit is electrically connected to a blood pressure acquisition module. The suction speed acquisition module is used to monitor the fluid flow rate in real time, and the blood pressure acquisition module is used to monitor the patient's blood pressure data in real time. The central processing unit receives the data collected by the suction speed acquisition module and the blood pressure acquisition module, and generates an evaluation coefficient after comprehensive analysis. The evaluation coefficient is compared with a pre-set evaluation coefficient reference threshold to determine whether the suction speed is within an appropriate range. Then, the working state of the suction mechanism is controlled according to the evaluation result. One end of the flexible tube is connected to the inlet pipe, and the other end is connected to the needle. The needle is inserted into the patient's body and secured. The blood pressure monitoring module is then attached to the patient's major artery, and the fluid collection bag is connected to the outlet tube. The device is then activated via buttons on the control panel. The suction mechanism creates negative pressure within the cylinder, allowing fluid to flow from the needle through the tubing into the cylinder and then into the fluid collection bag through the outlet tube, completing the drainage process. During this process, the suction speed monitoring module monitors the fluid flow rate in real time, and the blood pressure monitoring module monitors the patient's blood pressure data. The central processing unit receives the data from both modules, analyzes it, and generates an evaluation coefficient. This coefficient is compared to a pre-set reference threshold to determine if the suction speed is within an appropriate range. Based on the evaluation results, the unit controls the suction mechanism's operation, intelligently controlling the drainage speed to avoid discomfort and adverse effects on the patient.

[0006] Preferably, the liquid extraction mechanism includes a piston located inside the cylinder, a piston rod fixed to one end of the piston, and the other end of the piston rod passing through the end of the cylinder away from the liquid inlet pipe. A rack is fixedly connected to a groove at the top of the piston rod. A drive motor is fixedly connected to the end of the cylinder away from the liquid inlet pipe. A gear is fixedly connected to the output shaft of the drive motor, and the gear meshes with the rack. After receiving relevant instructions from the central processing unit, the drive motor will adjust its speed appropriately, 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 inside the cylinder, thereby controlling the liquid extraction speed.

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

[0008] Preferably, a first check valve is fixedly connected inside the inlet pipe, and a second check valve is fixedly connected inside the outlet pipe. When the piston moves away from the inlet pipe to draw liquid, the second check valve can prevent the liquid in the collection bag from flowing back into the cylinder from the outlet pipe. When the piston moves closer to the inlet pipe, it will push the liquid drawn from the cylinder into the collection bag from the outlet pipe. At this time, the first check valve can prevent the liquid drawn from the cylinder from flowing back into the hose from the inlet pipe.

[0009] Preferably, the control panel has a wiring port at the rear end, and the blood pressure acquisition module is connected to the wiring port by plugging and unplugging wires; the power can be turned on by plugging the wires into the wiring port, 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 outer circumference of the cylinder, and a charging interface is provided on the side of the power module; the power module can supply power to the blood pressure acquisition module, control panel, fluid extraction speed acquisition module and drive motor, and the rechargeable design makes the use of the device more convenient.

[0011] Preferably, a turntable is fixedly fitted onto the needle head, and the needle head is rotatably connected to a sleeve that can be fitted onto the turntable via the turntable. A double-sided adhesive is fixed to the side of the sleeve that is away from the tubing. A pair of mating blocks are provided on the outer circumference of the turntable, and a pair of notches that match the mating blocks are provided on the inner circumference of the sleeve. The sleeve is fixed to the patient's body part by the double-sided adhesive. Then, the needle is passed through the sleeve and inserted into the patient's body. Next, the mating blocks on the turntable are aligned with the notches, so that the turntable enters the sleeve. Then, the turntable is rotated so that the mating blocks and notches are misaligned. In this way, the needle is fixed by the sleeve, thereby preventing the needle from shaking randomly during the drainage of fluid and affecting the drainage process.

[0012] Preferably, the formula for calculating the evaluation coefficient is:

[0013]

[0014] Where V: Real-time aspiration rate (mL / min); ΔMAP: Mean arterial pressure change (current MAP - initial MAP, unit mmHg); Vmax: Preset maximum safe aspiration rate (set according to patient condition and fluid volume); MAP base Patient's baseline mean arterial pressure (MAP in the initial steady state).

[0015] Preferably, the formula for calculating the mean arterial pressure (MAP) is:

[0016]

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

[0018] Preferably, the adjustment rules for the working state of the liquid extraction mechanism are as follows:

[0019] When K < 0.3: This indicates that the current pumping speed is slow, generating an acceleration signal. The central processing unit receives the acceleration signal, generates an increase signal, and transmits the increase signal to the drive motor. The drive motor then increases its current speed, thereby gradually increasing the pumping speed (e.g., increasing by 5% each time). When 0.3 ≤ K ≤ 0.7: This indicates that the current pumping speed is within a suitable range, generating a normal signal. The central processing unit receives the normal signal, generates a maintenance signal, and transmits the maintenance signal to the drive motor. The drive motor then maintains its current speed, thereby maintaining the current pumping speed. When K > 0.7 or ΔMAP < -15 mmHg: This indicates that the current pumping speed is within an unsuitable range, generating a warning signal. The central processing unit receives the warning signal, generates a reduction signal, and transmits the reduction signal to the drive motor. The drive motor then reduces its current speed or stops rotating, thereby immediately reducing the pumping speed or pausing pumping.

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

[0021] 1. A fluid drainage device for oncology nursing care, which monitors fluid flow and patient blood pressure data in real time through a fluid drainage speed acquisition module and a blood pressure acquisition module. A central processing unit comprehensively analyzes this data to generate an evaluation coefficient, which is then compared with a preset evaluation coefficient reference threshold to accurately determine whether the drainage speed is appropriate. Based on the judgment result, the device controls the working state of the drainage mechanism, intelligently adjusting the drainage speed under different conditions to avoid discomfort or adverse effects on the patient caused by inappropriate drainage speed, thus improving the safety and effectiveness of the fluid drainage process. For example, when the evaluation shows that the drainage speed is too slow, the device can automatically increase the speed; when the speed is appropriate, it maintains the current state; and when the speed is inappropriate, it promptly reduces the speed or pauses.

[0022] 2. A fluid drainage device for oncology nursing, equipped with a control panel that displays parameters such as fluid flow rate, patient blood pressure data, and current drainage speed. Medical staff can monitor key information during the drainage process in real time, facilitating timely problem detection and appropriate action. Simultaneously, when the central processing unit determines that the drainage speed is inappropriate or the patient's blood pressure is abnormal, an alarm module will promptly sound an alarm, alerting medical staff to take action, thus enhancing real-time monitoring and early warning capabilities for the patient's condition.

[0023] 3. A fluid drainage device for oncology nursing, wherein the needle is fixed by a rotating disc and a sleeve, the sleeve being secured to the patient's body with double-sided adhesive. After the needle passes through the sleeve and is inserted into the patient's body, rotating the rotating disc misaligns the connecting block and the notch, achieving a stable fixation of the needle. This prevents the needle from moving freely during fluid drainage, ensuring the stability of the drainage process and improving the efficiency and accuracy of fluid extraction. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a fluid drainage device for oncology nursing proposed in this invention;

[0025] Figure 2 This is a schematic diagram of the overall structure of a fluid drainage device for oncology nursing proposed in this invention;

[0026] Figure 3 This is a schematic diagram of the cylindrical structure of a fluid drainage device for oncology nursing proposed in this invention;

[0027] Figure 4 This is a schematic diagram of the internal structure of the cylinder of a fluid drainage device for oncology nursing proposed in this invention;

[0028] Figure 5 For the present invention Figure 4 A magnified structural diagram at point A;

[0029] Figure 6 This is a schematic diagram showing the connection between the control panel and the blood pressure acquisition module of a fluid drainage device for oncology nursing proposed in this invention;

[0030] Figure 7 This is a schematic diagram of the fixed component of a fluid drainage device for oncology nursing proposed in this invention.

[0031] In the diagram: 1. Cylinder; 2. Outlet pipe; 3. Inlet pipe; 4. Tube; 5. Needle; 6. Aspiration rate acquisition module; 7. Control panel; 8. Blood pressure acquisition module; 9. Screen; 10.

[0032] Alarm module; 11. Power module; 12. Piston rod; 13. Piston; 14. Rack; 15. Drive motor; 16. Gear; 17. First check valve; 18. Second check valve; 19. Wiring port; 20. Wire; 21. Sleeve; 22. Notch; 23. Turntable; 24. Connecting block; 25. Double-sided adhesive. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0034] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0035] Reference Figures 1-7 A fluid drainage device for oncology nursing includes a cylinder 1. One end of the cylinder 1 is provided with an inlet pipe 3 and an outlet pipe 2 distributed vertically. A flexible tube 4 is sleeved on the inlet pipe 3, and the other end of the flexible tube 4 is sleeved on a needle 5. A suction mechanism is provided inside the cylinder 1. A suction speed acquisition module 6 is fixedly connected inside the inlet pipe 3. A control panel 7 is fixed on the top of the outer circumference of the cylinder 1. A central processing unit is provided inside the control panel 7. The central processing unit is electrically connected to a blood pressure acquisition module 8. The suction speed acquisition module 6 is used to monitor the fluid flow rate in real time, and the blood pressure acquisition module 8 is used to monitor the patient's blood pressure data in real time. The central processing unit is used to receive the data collected by the suction speed acquisition module 6 and the blood pressure acquisition module 8, and generate an evaluation coefficient after comprehensive analysis. The evaluation coefficient is compared with a pre-set evaluation coefficient reference threshold to determine whether the suction speed is within a suitable range. Then, the working state of the suction mechanism is controlled according to the evaluation result.

[0036] It should be noted that the pumping speed acquisition module 6 can be an electromagnetic flow meter or other device that can monitor the flow rate of the accumulated liquid in real time. The pumping speed acquisition module 6 is not specifically limited here and can be selected according to actual needs.

[0037] The blood pressure acquisition module 8 can be a non-invasive blood pressure monitor or other device that can monitor the patient's blood pressure data in real time. The blood pressure acquisition module 8 is not specifically limited here and can be selected according to actual needs.

[0038] In use, connect one end of the tubing 4 to the inlet tube 3 and the other end to the needle 5. Insert the needle 5 into the patient's body and fix it in place. Then, fix the blood pressure acquisition module 8 to the patient's aorta and connect the effusion collection bag to the outlet tube 2. The device can then be started using the buttons on the control panel 7. The suction mechanism will generate negative pressure inside the cylinder 1, and the effusion will flow from the needle 5 through the tubing 4 into the cylinder 1 and into the effusion collection bag through the outlet tube 2, completing the drainage of the effusion. During this process, the suction speed acquisition module 6 will monitor the flow rate of the effusion in real time, and the blood pressure acquisition module 8 will monitor the patient's blood pressure data in real time. The central processing unit will receive the data collected by the suction speed acquisition module 6 and the blood pressure acquisition module 8, and generate an evaluation coefficient after comprehensive analysis. By comparing the evaluation coefficient with a pre-set evaluation coefficient reference threshold, it is determined whether the suction speed is within an appropriate range. Then, based on the evaluation results, the working state of the suction mechanism is controlled, thereby intelligently controlling the drainage speed of the effusion to avoid causing discomfort or adverse effects to the patient.

[0039] The liquid extraction mechanism includes a piston 13 located inside the cylinder 1. One end of the piston 13 is fixed with a piston rod 12. 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 at the top of the piston rod 12. A drive motor 15 is fixedly connected to the end of the cylinder 1 away from the liquid inlet pipe 3. A gear 16 is fixedly connected to the output shaft of the drive motor 15. The gear 16 meshes with the rack 14.

[0040] When in use, after receiving relevant instructions from the central processing unit, the drive motor 15 will adjust its 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 inside the cylinder 1, thereby controlling the liquid pumping speed.

[0041] Furthermore, the control panel 7 also includes 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 a command from the central processing unit.

[0042] During use, the fluid flow rate and patient's blood pressure data collected by the fluid extraction speed acquisition module 6 and the blood pressure acquisition module 8, as well as relevant parameters such as the current extraction speed, will be displayed on the screen 9. When the central processing unit determines, based on the comparison results of the evaluation coefficient, that the current extraction speed is not within the appropriate range or the patient's blood pressure is abnormal, the central processing unit will send relevant instructions to the alarm module 10, thereby controlling the alarm module 10 to sound an alarm.

[0043] Among them, a first check valve 17 is fixedly connected inside the inlet pipe 3, and a second check valve 18 is fixedly connected inside the outlet pipe 2;

[0044] In use, when the piston 13 moves away from the inlet pipe 3 to draw liquid, the second one-way valve 18 can prevent the liquid in the collection bag from flowing back from the outlet pipe 2 into the cylinder 1. When the piston 13 moves closer to the inlet pipe 3, it will push the liquid drawn from the cylinder 1 into the collection bag from the outlet pipe 2. At this time, the first one-way valve 17 can prevent the liquid drawn from the cylinder 1 from flowing back from the inlet pipe 3 into the hose 4.

[0045] Furthermore, the control panel 7 has a wiring port 19 at the rear end, and the blood pressure acquisition module 8 is connected to the wiring port 19 by a wire 20.

[0046] When in use, simply insert the wire 20 into the connector 19 to power on the device. The wire 20 is easy to plug and unplug for easy disassembly.

[0047] Furthermore, a power module 11 is fixedly connected to one side of the outer circumference of the cylinder 1, and a charging interface is provided on the side of the power module 11.

[0048] When in use, the power module 11 can supply power to the blood pressure acquisition module 8, control panel 7, fluid extraction speed acquisition module 6 and drive motor 15. The rechargeable design makes the device more convenient to use.

[0049] Furthermore, a turntable 23 is fixedly fitted on the needle 5. The needle 5 is rotatably connected to a sleeve 21 that can be fitted on the turntable 23. A double-sided adhesive 25 is fixed on the side of the sleeve 21 away from the tubing 4. A pair of mating blocks 24 are provided on the outer circumference of the turntable 23. A pair of notches 22 that match the mating blocks 24 are provided on the inner circumference of the sleeve 21.

[0050] In use, the sleeve 21 is fixed to the patient's body part by the double-sided tape 25. Then, the needle 5 is passed through the sleeve 21 and inserted into the patient's body. Next, the docking block 24 on the turntable 23 is aligned with the notch 22, so that the turntable 23 enters the sleeve 21. Then, the turntable 23 is rotated so that the docking block 24 and the notch 22 are misaligned. In this way, the needle 5 is fixed by the sleeve 21, thereby preventing the needle 5 from shaking randomly when draining fluid and affecting the drainage process.

[0051] In another embodiment, the evaluation coefficient is calculated using the following formula:

[0052]

[0053] Where V: Real-time aspiration rate (mL / min); ΔMAP: Mean arterial pressure change (current MAP - initial MAP, unit mmHg); Vmax: Preset maximum safe aspiration rate (set according to patient condition and fluid volume); MAP basePatient's baseline mean arterial pressure (MAP in the initial steady state).

[0054] Furthermore, the formula for calculating mean arterial pressure (MAP) is as follows:

[0055]

[0056] Wherein, SBP: systolic blood pressure; DBP: diastolic blood pressure.

[0057] Furthermore, the rules for adjusting the working status of the liquid extraction mechanism are as follows:

[0058] When K < 0.3: This indicates that the current pumping speed is in a slow range, generating an acceleration signal. After receiving the acceleration signal, the central processing unit generates an increase signal and transmits the increase signal to the drive motor 15. The drive motor 15 then increases its current rotation speed, thereby gradually increasing the pumping speed (e.g., increasing by 5% each time). When 0.3 ≤ K ≤ 0.7: This indicates that the current pumping speed is within a suitable range, generating a normal signal. 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 then maintains its current rotation speed, thereby maintaining the current pumping speed. When K > 0.7 or ΔMAP < -15 mmHg: This indicates that the current pumping speed is within an unsuitable range, generating a warning signal. After receiving the warning signal, the central processing unit generates a reduction signal and transmits the reduction signal to the drive motor 15. The drive motor 15 then reduces its current rotation speed or stops rotating, thereby immediately reducing the pumping speed or pausing pumping.

[0059] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A fluid drainage device for oncology nursing care, comprising a cylinder (1), characterized in that, One end of the cylinder (1) is provided with an inlet pipe (3) and an outlet pipe (2). A flexible tube (4) is sleeved on the inlet pipe (3), and the other end of the flexible tube (4) is sleeved on the needle (5). A liquid extraction mechanism is provided inside the cylinder (1). A liquid extraction speed acquisition module (6) is fixedly connected inside the inlet pipe (3). A control panel (7) is fixed on the outer circumference of the cylinder (1). A central processing unit is provided inside the control panel (7). The central processing unit is electrically connected to a blood pressure acquisition module (8). The central processing unit is used to receive the data collected by the liquid extraction speed acquisition module (6) and the blood pressure acquisition module (8), generate evaluation coefficients, compare the evaluation coefficients with the reference threshold, and control the working state of the liquid extraction mechanism according to the evaluation results. The formula for calculating the evaluation coefficient is as follows: Where V: real-time aspiration rate; ΔMAP: mean arterial pressure change; : Preset maximum safe extraction speed; Patient's baseline mean arterial pressure; The formula for calculating the mean arterial pressure (MAP) is as follows: Wherein, SBP: systolic blood pressure; DBP: diastolic blood pressure; The adjustment rules for the working state of the liquid extraction mechanism are as follows: When K < 0.3: gradually increase the pumping speed; when 0.3 ≤ K ≤ 0.7: maintain the current pumping speed; when K > 0.7 or ΔMAP < -15 mmHg: immediately reduce the pumping speed or stop pumping.

2. The fluid drainage device for oncology nursing care according to claim 1, characterized in that, The liquid extraction mechanism includes a piston (13), a piston rod (12) fixed at one end of the piston (13), the other end of the piston rod (12) passing through the cylinder (1), a rack (14) fixedly connected to the top of the piston rod (12), a drive motor (15) fixedly connected to one end of the cylinder (1), a gear (16) fixedly connected to the output shaft of the drive motor (15), and the gear (16) meshing with the rack (14).

3. The fluid drainage device for oncology nursing care according to claim 1, characterized in that, The control panel (7) also includes 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 fluid drainage device for oncology nursing care according to claim 2, characterized in that, The inlet pipe (3) is fixedly connected to a first check valve (17), and the outlet pipe (2) is fixedly connected to a second check valve (18).

5. The fluid drainage device for oncology nursing care according to claim 1, characterized in that, The control panel (7) has a wiring port (19) at the rear end, and the blood pressure acquisition module (8) is connected to the wiring port (19) by a wire (20).

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

7. The fluid drainage device for oncology nursing care according to claim 1, characterized in that, A turntable (23) is fixedly fitted on the needle (5), and a sleeve (21) is rotatably connected to the needle (5). A double-sided adhesive (25) is fixed on one side of the sleeve (21). A pair of mating blocks (24) are provided on the outer circumference of the turntable (23), and a pair of notches (22) are provided on the inner circumference of the sleeve (21).

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