Intelligent nursing abdominal belt control device for ascites drainage
The intelligent abdominal belt control device automatically detects and adjusts abdominal pressure and drainage volume, solving the problems of extravasation at the abdominal puncture site and drainage tube dislodgement in liver disease patients, improving the safety and accuracy of drainage, and reducing the burden on patients and medical staff.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JILIN UNIVERSITY
- Filing Date
- 2025-02-26
- Publication Date
- 2026-07-24
AI Technical Summary
In existing technologies, ascites patients with liver disease and ascites are prone to extravasation of ascites and dislodgement of drainage tubes at the paracentesis site. Furthermore, the amount of drainage fluid released is not well controlled, leading to increased infection risk and high workload for medical staff.
The intelligent nursing abdominal binder control device for peritoneal effusion drainage includes an exudate detection component, internal and external pressure sensors, an airbag system, and a drainage tube. It automatically detects and controls abdominal pressure and drainage volume to reduce extravasation and dislodgement, thus achieving intelligent drainage.
It effectively reduces extravasation at the puncture site and dislodgement of the drainage tube, improves the accuracy and safety of drainage, and reduces patient suffering and the workload of medical staff.
Smart Images

Figure CN224540659U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical technology, and in particular to an intelligent nursing abdominal belt control device for ascites drainage. Background Technology
[0002] Liver disease is a serious public health problem in my country, with approximately 400 million people suffering from various types of liver diseases nationwide. A 2018 report by the International Agency for Research on Cancer (IARC) showed that China ranks ninth in the world in terms of liver cancer incidence. According to recent surveys in China, hepatitis B (CHB) and hepatitis C (CHC) affect 90 million and 10 million people respectively, with up to 7 million people (or 0.5%) developing cirrhosis and 460,000 new cases of liver cancer each year.
[0003] For patients with ascites due to liver disease, medication alone cannot completely eliminate the ascites. Paracentesis is necessary to allow intermittent drainage of the ascites via an indwelling abdominal drainage tube. An abdominal binder is used to apply pressure to the abdomen during drainage. Appropriate pressure during drainage can reduce the risk of a sudden drop in intra-abdominal pressure due to rapid fluid outflow, thus lowering the risk of hypotension, dizziness, and other discomfort.
[0004] In existing technologies, simply using medical tape to seal the abdominal puncture site can easily lead to ascites leakage, skin corrosion, and infection. Furthermore, prolonged use can cause the drainage tube to dislodge. In addition, precise control of drainage time and volume by medical staff is required. As the number of patients increases, the workload for medical staff becomes heavy. Moreover, changes in abdominal pressure and abdominal muscle activity caused by ascites can easily lead to extravasation of drainage fluid, tube dislodgement, and poor control of drainage volume based on treatment needs. Therefore, an intelligent nursing abdominal binder control device for ascites drainage is proposed to address these problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an intelligent nursing abdominal belt control device for ascites drainage, which solves the problems of extravasation of ascites at the peritoneal puncture site, dislodgement of the drainage tube, and poor control of the amount of drainage fluid released according to the treatment situation in patients with liver disease and ascites. It reduces the pain of liver disease patients, improves the quality of liver ascites drainage, and alleviates the work pressure of medical staff.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: An intelligent nursing abdominal binder control device for ascites drainage includes a main control unit. An exudation detection component is fixedly connected inside the main control unit to determine whether exudation has occurred at the puncture site in the patient's abdomen. An internal pressure sensor and an external pressure sensor are electrically connected inside the main control unit via signal lines. An outer airbag inflation pump, an inner airbag inflation pump, an inner airbag deflation valve, and an outer airbag deflation valve are all electrically connected inside the main control unit via control wires. As a further description of the above technical solution: The seepage detection component includes a high-sensitivity flow meter. The interface of the high-sensitivity flow meter is electrically connected to the inside of the main control device via a signal line. A drainage tube is fixedly connected to the inner wall of the high-sensitivity flow meter. A solenoid valve is electrically connected to the inside of the main control device via a control wire. A drainage tube is fixedly connected to the inner wall of the solenoid valve. A flexible seepage detection sensor is fixedly connected to the outer wall of the drainage tube. As a further description of the above technical solution: A fixed abdominal band is fixedly connected to the outer wall of the inner pressure sensor, an inner layer of spiral-shaped airbag is fixedly connected to the outer wall of the inner pressure sensor, an inner layer of spiral-shaped airbag is fixedly connected to the outer wall of the outer pressure sensor, and an outer layer of spiral-shaped airbag is fixedly connected to the outer wall of the outer pressure sensor. As a further description of the above technical solution: The main control device is electrically connected to the interface of the flexible seepage detection sensor via a signal line, and the inner wall of the high-sensitivity flow meter is fixedly connected to the outer wall of the drainage tube. As a further description of the above technical solution: The outer wall of the flexible seepage detection sensor is fixedly connected to a fixing strap, and the outer wall of the fixing strap is fixedly connected to a fixing abdominal band. As a further description of the above technical solution: The outer wall of the fixed abdominal band is fixedly connected to the outer wall of the inner layer of the spiral-shaped airbag, and the outer wall of the inner layer of the spiral-shaped airbag is fixedly connected to the outer wall of the outer layer of the spiral-shaped airbag. As a further description of the above technical solution: An LED light is fixedly connected inside the main control device, and a buzzer is fixedly connected inside the main control device; As a further description of the above technical solution: A puncture needle is fixedly connected to the top end of the drainage tube, and a drainage bag is fixedly connected to the other end of the drainage tube.
[0007] This utility model has the following beneficial effects: This invention employs a loop-shaped airbag design. The inner loop-shaped airbag effectively covers the puncture point. Inflating the inner loop-shaped airbag pressurizes the puncture point, effectively reducing extravasation of drainage fluid and dislodgement of the drainage tube. The outer airbag has lower pressure, which, while assisting in device fixation, also prevents excessive pressure from compressing the abdominal drainage tube and hindering drainage, thus improving drainage effectiveness. A high-sensitivity flow meter is used to monitor the ascites bag, obtaining the incremental rate signal of drainage, thereby measuring the amount of ascites drainage. The amount of ascites drainage can be controlled according to the treatment situation. When the device detects extravasation of ascites at the puncture point, it automatically increases pressure to reduce extravasation. When the amount of ascites drained reaches a preset value, drainage automatically stops. It operates automatically without manual intervention, greatly reducing the workload of medical staff and possessing high practical value. Attached Figure Description
[0008] Figure 1 A three-dimensional schematic diagram of the intelligent nursing abdominal binder control device for ascites drainage proposed in this utility model; Figure 2 This is a schematic diagram of the fixed abdominal band of the intelligent nursing abdominal band control device for ascites drainage proposed in this utility model. Figure 3 This is a schematic diagram of the main control device of the intelligent nursing abdominal binder for ascites drainage proposed in this utility model. Figure 4 This is a schematic diagram of the fixing strap of the intelligent nursing abdominal binder control device for ascites drainage proposed in this utility model; Legend: 1. Main control device; 2. Abdominal fixation belt; 3. Inner layer loop-shaped airbag; 4. Outer layer loop-shaped airbag; 5. Puncture needle; 6. Flexible leakage detection sensor; 7. Fixation strap; 8. LED light; 9. Buzzer; 10. Outer layer airbag deflation valve; 11. Inner layer airbag deflation valve; 12. Solenoid valve; 13. High-sensitivity flow meter; 14. Outer layer airbag inflation pump; 15. Inner layer airbag inflation pump; 16. External pressure sensor; 17. Internal pressure sensor; 18. Drainage bag; 19. Drainage tube. Detailed Implementation
[0009] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0010] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides an embodiment of an intelligent nursing abdominal binder control device for ascites drainage, comprising a main control device 1. The main control device 1 includes a main control module, a pressure acquisition and control module, a drainage control and measurement module, a flexible exudate detection module, an indicator module, an alarm module, and an NFC sensing module, facilitating medical personnel to monitor the status of the entire device. An exudate detection component is fixedly connected inside the main control device 1 to determine whether exudate has occurred at the puncture site of the patient's abdomen. The exudate detection component facilitates medical personnel to control and monitor the exudate situation of the patient's ascites. An internal pressure sensor 17 is electrically connected inside the main control device 1 via a signal line. The internal pressure sensor 17 is used to detect the pressure value between the patient's abdominal binder and the inner layer of the loop-shaped airbag 3, and then transmits the signal to the internal pressure acquisition and control module of the main control device 1. An external pressure sensor 16 is electrically connected inside the main control device 1 via a signal line. The external pressure sensor 16 is mainly used to detect the pressure value between the inner layer of the loop-shaped airbag 3 and the outer layer of the loop-shaped airbag 4, and then transmits the signal to the internal pressure acquisition and control module of the main control device 1 via a signal line.
[0011] The main control device 1 is electrically connected to the outer airbag inflation pump 14 via control wires. After receiving the signal from the external pressure sensor 16, the pressure acquisition and control module transmits the data to the main control module. The main control module controls the outer airbag inflation pump 14 to inflate the outer loop-shaped airbag 4. The main control device 1 is also electrically connected to the inner airbag inflation pump 15 via control wires. The working principle of the inner airbag inflation pump 15 is similar to that of the outer airbag inflation pump 14, but the inner airbag inflation pump 15 inflates the inner loop-shaped airbag 3. The main control device 1 is electrically connected to the inner airbag deflation valve 11 via control wires. After the pressure acquisition and control module receives the signal from the inner pressure sensor 17, it transmits the data to the main control module. The main control module controls the inner airbag deflation valve 11 to deflate. The main control device 1 is also electrically connected to the outer airbag deflation valve 10 via control wires. The working principle of the outer airbag deflation valve 10 is similar to that of the inner airbag deflation valve 11, but the inner airbag deflation valve 11 is used to control the deflation of the inner loop-shaped airbag 3.
[0012] An abdominal binder 2 is fixedly connected to the outer wall of the internal pressure sensor 17 to protect the patient's puncture site. An inner loop-shaped air bladder 3 is fixedly connected to the outer wall of the internal pressure sensor 17. The internal pressure sensor 17 is used to detect the pressure value between the abdominal binder 2 and the inner loop-shaped air bladder 3. An inner loop-shaped air bladder 3 is fixedly connected to the outer wall of the external pressure sensor 16. The external pressure sensor 16 is used to detect the pressure value between the inner loop-shaped air bladder 3 and the outer loop-shaped air bladder 4. The outer wall of the abdominal binder 2 is fixedly connected to the outer wall of the inner loop-shaped air bladder 3. The outer wall of the inner loop-shaped air bladder 3 is fixedly connected to the outer wall of the outer loop-shaped air bladder 4. Reference Figure 2 , Figure 3 and Figure 4 The seepage detection component includes a high-sensitivity flow meter 13. The high-sensitivity flow meter 13 transmits the incremental rate signal of the drainage to the main control module in real time through the drainage control measurement module. When the set value is reached, the control solenoid valve 12 presses the drainage tube 19 to close or release it. The interface of the high-sensitivity flow meter 13 is electrically connected to the inside of the main control device 1 through a signal line, so that the drainage control measurement module inside the main control device 1 can receive the signal. The drainage tube 19 is fixedly connected to the inner wall of the high-sensitivity flow meter 13. This connection method makes it easy for the high-sensitivity flow meter 13 to detect the incremental rate of the drainage. The solenoid valve 12 is electrically connected to the inside of the main control device 1 through a control wire. The solenoid valve 12 is used to press the drainage tube 19 to control the closing or releasing of the drainage tube 19.
[0013] A drainage tube 19 is fixedly connected to the inner wall of the solenoid valve 12. The drainage tube 19 is used to drain abdominal effusion into the drainage bag 18. A flexible effusion detection sensor 6 is fixedly connected to the outer wall of the drainage tube 19. The flexible effusion detection sensor 6 detects the humidity around the puncture site of the patient's abdomen and transmits the signal to the flexible effusion detection module. The main control device 1 is electrically connected to the interface of the flexible effusion detection sensor 6 through a signal line, so that the flexible effusion detection module inside the main control device 1 can receive the signal of humidity around the puncture site of the abdomen. The inner wall of the high-sensitivity flow meter 13 is fixedly connected to the outer wall of the drainage tube 19. The high-sensitivity flow meter 13 is used to detect the increase in drainage from the drainage tube 19. A fixing strap 7 is fixedly connected to the outer wall of the flexible effusion detection sensor 6. The fixing strap 7 is used to connect the flexible effusion sensor to the fixing abdominal band 2.
[0014] An abdominal binder 2 is fixedly connected to the outer wall of the fixation strap 7. An LED light 8 is fixedly connected inside the main control device 1. The LED light 8 has three indicator lights: a red light for fault, a green light for normal operation, and a blue light for power. They are connected to the indicator module of the main control device 1, so that the indicator module can control the LED light 8 to display different colors. A buzzer 9 is fixedly connected inside the main control device 1. A microcontroller is installed inside the main control device 1. The microcontroller outputs a high level to control the buzzer 9 to work. The microcontroller is connected to the alarm module inside the main control device 1, so that the buzzer 9 can be controlled to alarm. A puncture needle 5 is fixedly connected to the top of the drainage tube 19 for puncturing the patient's abdominal puncture point. A drainage bag 18 is fixedly connected to the other end of the drainage tube 19, so that the peritoneal fluid is introduced into the drainage bag 18 through the drainage tube 19.
[0015] Working principle: Insert the puncture needle 5 into the puncture point in the patient's abdomen, then insert the guide wire through the puncture needle 5, then pull out the puncture needle 5, and insert the drainage tube 19 along the guide wire. Then pass the fixation abdominal binder 2 through the waist and around the abdomen, fix the drainage tube 19 to the fixation abdominal binder 2, and fix the drainage bag 18 to the bottom end of the drainage tube 19. Then, the abdominal binder is intelligently controlled by the control device to drain the peritoneal fluid.
[0016] The control device includes a main control module, a pressure acquisition and control module, a drainage control and measurement module, a flexible exudate detection module, an indicator module, an alarm module, and an NFC sensing module. The NFC sensing module consists of an NFC chip, allowing medical staff to use NFC-enabled mobile phones to enable the device to obtain the hospital's WiFi account and password, automatically connecting to the network. After the device connects to the hospital's medical system via WiFi, the data is uploaded to the relevant server, and nurses can view and control the devices worn by patients via their mobile phones.
[0017] The pressure acquisition module includes a pressure data acquisition circuit. The pressure acquisition module detects the pressure value between the inner layer loop-shaped airbag 3 and the outer layer loop-shaped airbag 4 through the external pressure sensor 16, and then detects the pressure value between the inner layer loop-shaped airbag 3 and the fixed abdominal band 2 through the external pressure sensor 16. When the pressure acquisition module reads the pressure transmitted by the pressure sensor, the pressure data acquisition module converts the pressure signal in the airbag into a voltage signal within 0~3.3V and transmits it to the main control module. The main control module outputs a high level to the deflation valve control circuit and the inflation valve control circuit to control the opening of the inner layer airbag deflation valve 11 and the outer layer airbag deflation valve 10, as well as the outer layer airbag inflation pump 14 and the inner layer airbag inflation pump 15. The output low level controls the deflation valve and the inflation pump to close, thereby controlling the pressure of the outer layer loop-shaped airbag 4 on the inner layer loop-shaped airbag 3 and the pressure of the inner layer loop-shaped airbag 3 on the abdominal puncture point.
[0018] The flexible exudate detection module consists of a flexible exudate detection sensor 6 and an exudate detection circuit. This circuit detects the humidity around the puncture site in the patient's abdomen using the sensor 6 to determine if exudate has occurred. The detected humidity signal is converted into a voltage signal and transmitted to the main control module. The drainage control and measurement module includes a solenoid valve 12 control circuit and a high-sensitivity flow meter 13 measurement circuit. The main control module outputs a high-level signal to the solenoid valve 12 control circuit to open the valve and a low-level signal to close it. The pressure measurement circuit converts the weight signal of the drainage bag 18 into a voltage signal and transmits it to the main control module to determine the current amount of ascites drained and the rate of increase.
[0019] The host module can determine whether ascites has overflowed by reading data from the flexible seepage detection sensor 6. It can then adjust the abdominal binder pressure by controlling the air pump to inflate and the air release valve to release pressure. The high-sensitivity flow meter 13 transmits the incremental rate signal of drainage to the host in real time. When the set value is reached, the solenoid valve 12 is controlled to press the drainage tube 19 to close or release it.
[0020] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An intelligent nursing abdominal binder control device for ascites drainage, comprising a main control device (1), characterized in that: The main control device (1) is internally fixedly connected to a leakage detection component for determining whether leakage has occurred at the puncture site of the patient's abdomen. The main control device (1) is internally electrically connected to an internal pressure sensor (17) via a signal line. The main control device (1) is internally electrically connected to an external pressure sensor (16) via a signal line. The main control device (1) is internally electrically connected to an external airbag inflation pump (14) via a control wire. The main control device (1) is internally electrically connected to an internal airbag inflation pump (15) via a control wire. The main control device (1) is internally electrically connected to an internal airbag deflation valve (11) via a control wire. The main control device (1) is internally electrically connected to an external airbag deflation valve (10) via a control wire.
2. The intelligent nursing abdominal binder control device for ascites drainage according to claim 1, characterized in that: The seepage detection assembly includes a high-sensitivity flow meter (13). The interface of the high-sensitivity flow meter (13) is electrically connected to the inside of the main control device (1) via a signal line. A drainage tube (19) is fixedly connected to the inner wall of the high-sensitivity flow meter (13). A solenoid valve (12) is electrically connected to the inside of the main control device (1) via a control wire. A drainage tube (19) is fixedly connected to the inner wall of the solenoid valve (12). A flexible seepage detection sensor (6) is fixedly connected to the outer wall of the drainage tube (19).
3. The intelligent nursing abdominal binder control device for ascites drainage according to claim 2, characterized in that: The outer wall of the inner pressure sensor (17) is fixedly connected to a fixed abdominal band (2), the outer wall of the inner pressure sensor (17) is fixedly connected to an inner layer spiral airbag (3), the outer wall of the outer pressure sensor (16) is fixedly connected to an inner layer spiral airbag (3), and the outer wall of the outer pressure sensor (16) is fixedly connected to an outer layer spiral airbag (4).
4. The intelligent nursing abdominal binder control device for ascites drainage according to claim 2, characterized in that: The main control device (1) is electrically connected to the interface of the flexible seepage detection sensor (6) via a signal line, and the inner wall of the high-sensitivity flow meter (13) is fixedly connected to the outer wall of the drainage pipe (19).
5. The intelligent nursing abdominal binder control device for ascites drainage according to claim 2, characterized in that: The flexible seepage detection sensor (6) is fixedly connected to a fixing strap (7) on its outer wall, and a fixing abdominal band (2) is fixedly connected to the outer wall of the fixing strap (7).
6. The intelligent nursing abdominal binder control device for ascites drainage according to claim 3, characterized in that: The outer wall of the fixed abdominal band (2) is fixedly connected to the outer wall of the inner layer loop-shaped airbag (3), and the outer wall of the inner layer loop-shaped airbag (3) is fixedly connected to the outer wall of the outer layer loop-shaped airbag (4).
7. The intelligent nursing abdominal binder control device for ascites drainage according to claim 1, characterized in that: An LED light (8) is fixedly connected inside the main control device (1), and a buzzer (9) is fixedly connected inside the main control device (1).
8. The intelligent nursing abdominal binder control device for ascites drainage according to claim 2, characterized in that: A puncture needle (5) is fixedly connected to the top end of the drainage tube (19), and a drainage bag (18) is fixedly connected to the other end of the drainage tube (19).