Acites drainage device for clinical treatment of digestive system department

Abstract

The invention discloses an ascites drainage device for clinical treatment of the digestive system department, and relates to the technical field of medical instruments.The ascites drainage device comprises an ascites collecting barrel and a control panel, the surface of the bottom end of the ascites collecting barrel is connected with a ground base, the surface of the top end of the ascites collecting barrel is movably connected with a sealing cover plate, and the inner wall of the ascites collecting barrel is movably connected with a pressurizing piston; the control panel comprises a data acquisition unit, a pressure analysis unit, a drainage control unit and a warning reminding unit; intraabdominal pressure data of a patient are obtained through the thin film pressure sensor, ideal drainage speed data are calculated according to ascites total volume data of the patient, meanwhile, real-time ascites flow speed data in the drainage process are monitored, and pressurization adjusting parameters can be obtained based on the relation between the moving speed of the pressurization piston and pressurization efficiency; the ascites drainage efficiency is automatically adjusted, manual observation of medical staff is not needed, meanwhile, the abnormity reminding function is achieved, and the medical staff can conveniently find abnormity in time.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an ascites drainage device for clinical treatment of gastroenterology. Background Art

[0002] Ascites is a common disease in daily life. There are many reasons why people have ascites. When people have ascites in their bodies, it will cause great harm to their health. Therefore, all types of ascites should be treated in time and discharged from the body. At present, there are many ways for people to choose to eliminate ascites, which can generally be selected according to their own condition. For example, the use of diuretics, albumin infusion, peritoneal puncture therapy, and intravenous shunt method;

[0003] Among them, abdominal puncture therapy is a common traditional method of treating ascites in daily life. It can help people effectively discharge ascites from the body. Generally, a laparoscope is needed to accurately puncture the precise position to drain the ascites. This treatment method is relatively safe and has a good therapeutic effect, so it is used by many patients. In the prior art, after abdominal puncture therapy, ascites is discharged. During the process, the drainage speed of ascites needs to be controlled. Now, the drainage fluid speed is adjusted to prevent rapid water loss and insufficient circulating blood volume. However, in the prior art, a puncture needle is generally used to connect the drainage bag when draining the fluid, and a spiral infusion clamp is used for adjustment to perform continuous automatic drainage. The intelligent effect of the equipment is poor and manual adjustment by medical staff is required. If the patient's abdominal pressure changes or abnormal conditions such as electrolyte imbalance are not discovered in time, it is easy to cause collapse or shock in the patient;

[0004] In view of the above-mentioned technical defects, a solution is now proposed. Summary of the invention

[0005] The purpose of the present invention is to realize automatic adjustment of ascites drainage efficiency without manual observation by medical staff, and at the same time have an abnormal reminder function, so that medical staff can find abnormalities in time.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an ascites drainage device for clinical treatment of gastroenterology, comprising an ascites collection barrel and a control panel, the bottom surface of the ascites collection barrel is connected to a ground base, the top surface of the ascites collection barrel is movably connected to a sealing cover plate, the inner wall of the ascites collection barrel is movably connected to a pressurizing piston, a pressurizing chamber is formed between the pressurizing piston and the bottom end of the inner wall of the ascites collection barrel, a driving mechanism is jointly installed between the sealing cover plate and the pressurizing piston, a first interface is fixedly provided on the top surface of the sealing cover plate, a guide tube is inserted at the inner wall of the first interface, a through groove is opened inside the pressurizing piston, the end of the guide tube passes through the through groove and extends to the inside of the pressurizing chamber, the end surface of the guide tube is connected to a crushing mechanism, and the crushing mechanism is connected to a drainage tube.

[0007] Furthermore, the bottom surface of the ascites collection bucket is connected with a plug-in shaft, the top surface of the ground base is provided with a limiting block, the inside of the limiting block is provided with a plug-in groove, the bottom surface of the plug-in groove extends to the bottom surface of the ground base, and the plug-in shaft is movably plugged into the inner wall of the plug-in groove, and the ascites collection bucket is fixed on the ground base by aligning the plug-in shaft with the plug-in groove on the limiting block and pressing it downward, and the ground base together with the ascites collection bucket is moved to the vicinity of the patient's bed.

[0008] Furthermore, the driving mechanism includes an electromagnet and a limit assembly. The outer surface of the pressurizing piston is covered with an isolation protective layer. The isolation protective layer is made of medical rubber material and is a disposable product. It is also treated as medical waste after use. By wrapping the pressurizing piston with the isolation protective layer, it can isolate ascites contamination and facilitate replacement. A magnet block is fixed inside the pressurizing piston. The electromagnet is fixed on the bottom surface of the ground base. A rechargeable battery is installed inside the ground base, and the electromagnet is electrically connected to the rechargeable battery.

[0009] Furthermore, the limiting assembly includes a traction rope, an installation cavity is opened inside the sealing cover plate, a winding shaft is movably connected to the inner wall of the installation cavity, one end of the winding shaft is connected to a threaded rotating shaft, the end of the threaded rotating shaft extends to the outside of the sealing cover plate and is connected to a torsion block, the traction rope is movably wound on the outer surface of the winding shaft, a rope threading groove is opened inside the sealing cover plate, the end of the traction rope passes through the inner wall of the rope threading groove and is connected to the top surface of the pressurizing piston.

[0010] Furthermore, the crushing mechanism includes a connecting tube, a stagnation cavity is opened inside the connecting tube, a fixed ring is fixedly provided on the inner wall of the stagnation cavity, a plurality of cutting blades are radially distributed on the inner wall of the fixed ring, a second interface is fixedly provided on the top surface of the connecting tube, the drainage tube is inserted into the inner wall of the second interface, and a flow rate sensor is fixedly provided on the inner wall of the stagnation cavity.

[0011] Furthermore, the drainage tube includes a tube body and a thin film pressure sensor, the tube body is inserted into the inner wall of the second interface and extends to the interior of the hysteresis cavity, the outer surface of the tube body is provided with a sensing groove, the inner wall of the sensing groove is provided with a pressure sensing layer, and a plurality of thin film pressure sensors are evenly distributed between the sensing groove and the pressure sensing layer. The abdominal pressure data of the patient is obtained according to the thin film pressure sensor, and after the data is analyzed by the control panel, the electromagnet is connected to the circuit, the electromagnet is energized and has magnetism, and the magnetism of the corresponding surfaces of the electromagnet and the magnet block is opposite, so under the action of magnetic attraction, the pressurizing piston moves downward along the pressurizing cavity, reducing the volume of the pressurizing cavity to achieve pressurization, increasing the flow rate of ascites in the drainage tube, and improving the ascites drainage efficiency.

[0012] Furthermore, a discharge pipe is connected to the inner wall of the ascites collection barrel, the end of the discharge pipe extends to the outside of the ascites collection barrel, and a sealing port is movably mounted on the end surface of the discharge pipe.

[0013] Furthermore, the control panel includes a data acquisition unit, a pressure analysis unit, a drainage control unit and a warning reminder unit;

[0014] The data acquisition unit is used to acquire the intra-abdominal pressure data of the patient through the thin film pressure sensor, average the intra-abdominal pressure data and send it to the pressure analysis unit, and acquire the real-time flow rate data of the ascites during the drainage process through the flow rate sensor, and send the real-time flow rate data of the ascites to the pressure analysis unit;

[0015] The pressure analysis unit is used to obtain the total volume data of the ascites of the patient, and calculate the ideal drainage speed data according to the intra-abdominal pressure data, and further send the calculated flow rate difference between the real-time flow rate data of the ascites and the ideal drainage speed data to the drainage control unit and the alarm reminder unit;

[0016] The drainage control unit is used to establish a drainage efficiency model according to the volume of the pressurizing chamber and the moving speed of the pressurizing piston, obtain the flow rate difference, output the pressurizing adjustment parameter according to the drainage efficiency model, and adjust the moving speed of the pressurizing piston according to the pressurizing adjustment parameter so that the real-time flow rate data of the ascites reaches the ideal drainage rate data;

[0017] The warning unit is used to preset a flow rate difference threshold, and generate a flow rate abnormality signal based on the flow rate difference judgment, and send the flow rate abnormality signal to the medical remote monitoring terminal to remind medical staff;

[0018] Specifically, a preset flow velocity difference threshold △vm is obtained, and if △v is greater than or equal to △vm, a flow velocity abnormality signal is generated.

[0019] Furthermore, the specific process of calculating the flow rate difference based on the ascites flow rate data and the ideal drainage speed data is as follows:

[0020] S101, obtaining the total volume data of the patient's ascites to calculate the ideal drainage time, and dividing the drainage period according to the ideal drainage time, the drainage period includes the initial drainage period t1, the steady-state drainage period t2 and the terminal drainage period t3, and correspondingly calculating the stage-by-stage ideal drainage speed data, the ideal drainage speed data includes the initial drainage speed v1, the steady-state drainage speed v2 and the terminal drainage speed v3;

[0021] S102, obtaining the real-time flow velocity data vb of ascites, and calculating the flow velocity difference △v: △v=|vb-vj|, where j=1, 2, 3.

[0022] Furthermore, the specific process of obtaining the flow velocity difference and outputting the pressure adjustment parameter according to the drainage efficiency model is as follows:

[0023] S201, obtaining the volume data Vb and the cross-sectional area data S0 of the pressurizing chamber, it can be known that the height data H0 of the pressurizing chamber is Hb / S0, then the total moving distance of the pressurizing piston is X=H0-h0, where h0 is the height data of the pressurizing piston;

[0024] S202. Since the pressurizing piston moves in the pressurizing chamber under the action of magnetic attraction, the velocity equation f(v) of the pressurizing piston can be established according to the current data Ia: Wherein, k is the proportional coefficient, F1 is the friction between the pressurizing piston and the pressurizing chamber during the movement of the pressurizing piston in the pressurizing chamber, F2 is the pulling force of the traction rope during the movement of the pressurizing piston in the pressurizing chamber, m is the weight of the pressurizing piston, and t is the time the pressurizing piston moves in the pressurizing chamber;

[0025] S203, obtaining the flow velocity data vm in the drainage tube corresponding to the velocity data vn of the pressure piston, establishing a drainage efficiency model, and obtaining the drainage efficiency related equation f(△v): Where e1 and e2 are both proportional coefficients, and e1 is greater than e2;

[0026] S204, substituting the flow rate difference into the drainage efficiency related equation to obtain the speed data of the pressurizing piston, substituting the speed data of the pressurizing piston into the speed equation f(v) to output the current data Ia as the pressurization adjustment parameter.

[0027] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0028] 1. The ascites drainage device for clinical treatment of gastroenterology is used. The ascites collection bucket is fixed on the ground base by aligning the plug-in shaft with the plug-in slot on the limit card block and pressing it downward. The ground base together with the ascites collection bucket is moved to the vicinity of the patient's bed. After the use is completed, the ascites collection bucket can be removed from the ground base and disinfected, and then the ascites collection bucket and the sealing cover plate are reset in sequence. The split structure is convenient for disinfection and can be reused;

[0029] 2. This ascites drainage device for clinical treatment in gastroenterology obtains the patient's abdominal pressure data based on a thin film pressure sensor. After the control panel analyzes the data, the electromagnet is connected to the circuit. The electromagnet has magnetism when energized, and the magnetism of the corresponding surfaces of the electromagnet and the magnet block are opposite. Therefore, under the action of magnetic attraction, the pressurizing piston moves downward along the pressurizing chamber, reducing the volume of the pressurizing chamber to achieve pressurization, increasing the flow rate of ascites in the drainage tube, and improving the ascites drainage efficiency.

[0030] 3. This ascites drainage device for clinical treatment in gastroenterology is provided with a connecting tube. During the ascites drainage process, ascites enters the connecting tube from the tube body. The growths and coagulated tissues contained in the ascites are crushed by radially arranged cutting blades to avoid blockage of the drainage tube. The drainage tube, the connecting tube and the tube body are all disposable items and are treated as medical waste after use. An isolation protective layer is also provided. The isolation protective layer is made of medical rubber material and is a disposable item. It is also treated as medical waste after use. The pressurizing piston is wrapped by the isolation protective layer to isolate ascites contamination and facilitate replacement.

[0031] 4. This ascites drainage device for clinical treatment in gastroenterology obtains the patient's intra-abdominal pressure data through a thin film pressure sensor, calculates the ideal drainage speed data based on the patient's total ascites volume data, and monitors the real-time ascites flow rate data during the drainage process. Based on the relationship between the moving speed of the pressurizing piston and the pressurizing efficiency, the pressurizing adjustment parameters can be obtained to achieve automatic adjustment of the ascites drainage efficiency without the need for manual observation by medical staff. It also has an abnormal reminder function, which is convenient for medical staff to detect abnormalities in a timely manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The overall external structure schematic diagram of the present invention is shown;

[0033] Figure 2 The overall internal structure schematic diagram of the present invention is shown;

[0034] Figure 3 Another schematic diagram of the overall internal structure of the present invention is shown;

[0035] Figure 4 A schematic diagram showing the internal structure of the connecting pipe and the pipe body of the present invention is shown;

[0036] Figure 5 The present invention shows Figure 4 A schematic diagram of the enlarged structure of part A;

[0037] Figure 6 A schematic diagram of the control panel structure of the present invention is shown;

[0038] Legend: 1. Ascites collection bucket; 2. Ground base; 3. Sealing cover; 4. Pressurizing piston; 5. Pressurizing chamber; 6. Through slot; 7. First interface; 8. Guide tube; 9. Plug-in shaft; 10. Limiting block; 11. Isolation protection layer; 12. Magnet block; 13. Installation chamber; 14. Winding shaft; 15. Threaded shaft; 16. Torsion block; 17. Towing rope; 18. Connecting pipe; 19. Hysteresis chamber; 20. Fixed ring; 21. Cutting blade; 22. Second interface; 23. Flow rate sensor; 24. Tube body; 25. Sensing slot; 26. Pressure sensing layer; 27. Thin film pressure sensor; 28. Discharge pipe; 29. ​​Sealing port; 30. Electromagnet. DETAILED DESCRIPTION

[0039] 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.

[0040] Embodiment 1:

[0041] like Figure 1-5 As shown, an ascites drainage device for clinical treatment in gastroenterology comprises an ascites collecting barrel 1 and a control panel, the bottom surface of the ascites collecting barrel 1 is connected to a ground base 2, the top surface of the ascites collecting barrel 1 is movably connected to a sealing cover plate 3, the inner wall of the ascites collecting barrel 1 is movably connected to a pressurizing piston 4, a pressurizing chamber 5 is formed between the pressurizing piston 4 and the bottom end of the inner wall of the ascites collecting barrel 1, a driving mechanism is installed between the sealing cover plate 3 and the pressurizing piston 4, a first interface 7 is fixedly provided on the top surface of the sealing cover plate 3, a guide tube 8 is inserted into the inner wall of the first interface 7, a through groove 6 is opened inside the pressurizing piston 4, the end of the guide tube 8 passes through the through groove 6 and extends to the inside of the pressurizing chamber 5, the end surface of the guide tube 8 is connected to a crushing mechanism, and the crushing mechanism is connected to a drainage tube.

[0042] The bottom surface of the ascites collection bucket 1 is connected with a plug-in shaft 9, and the top surface of the ground base 2 is provided with a limit block 10. The inside of the limit block 10 is provided with a plug-in groove, and the bottom surface of the plug-in groove extends to the bottom surface of the ground base 2. The plug-in shaft 9 is movably plugged into the inner wall of the plug-in groove. The ascites collection bucket 1 is fixed on the ground base 2 by aligning the plug-in shaft 9 with the plug-in groove on the limit block 10 and pressing it downward, and the ground base 2 is moved together with the ascites collection bucket 1 to the vicinity of the patient's bed.

[0043] The driving mechanism includes an electromagnet 30 and a limit assembly. The outer surface of the pressurizing piston 4 is covered with an isolation protective layer 11. The isolation protective layer 11 is made of medical rubber material and is a disposable item. It is also treated as medical waste after use. The pressurizing piston 4 is wrapped with the isolation protective layer 11 to isolate ascites contamination and facilitate replacement. A magnet block 12 is fixed inside the pressurizing piston 4. The electromagnet 30 is fixed on the bottom surface of the ground base 2. A rechargeable battery is installed inside the ground base 2, and the electromagnet 30 is electrically connected to the rechargeable battery.

[0044] The limiting assembly includes a traction rope 17, an installation cavity 13 is opened inside the sealing cover plate 3, a winding shaft 14 is movably connected to the inner wall of the installation cavity 13, one end of the winding shaft 14 is connected to a threaded rotating shaft 15, the end of the threaded rotating shaft 15 extends to the outside of the sealing cover plate 3 and is connected to a torsion block 16, the traction rope 17 is movably wound on the outer surface of the winding shaft 14, a rope threading groove is opened inside the sealing cover plate 3, the end of the traction rope 17 passes through the inner wall of the rope threading groove and is connected to the top surface of the pressurizing piston 4.

[0045] The crushing mechanism includes a connecting tube 18, a stagnation chamber 19 is opened inside the connecting tube 18, a fixed ring 20 is fixedly provided on the inner wall of the stagnation chamber 19, and a plurality of cutting blades 21 are radially distributed on the inner wall of the fixed ring 20. A second interface 22 is fixedly provided on the top surface of the connecting tube 18, and the drainage tube is inserted into the inner wall of the second interface 22. A flow rate sensor 23 is fixedly provided on the inner wall of the stagnation chamber 19.

[0046] The drainage tube includes a tube body 24 and a thin film pressure sensor 27. The tube body 24 is inserted into the inner wall of the second interface 22 and extends to the inside of the retardation chamber 19. A sensing groove 25 is provided on the outer surface of the tube body 24. A pressure sensing layer 26 is fixed on the inner wall of the sensing groove 25. Several thin film pressure sensors 27 are evenly distributed between the sensing groove 25 and the pressure sensing layer 26. The patient's abdominal pressure data is obtained according to the thin film pressure sensor 27. After the control panel performs data analysis, the electromagnet 30 is connected to the circuit. The electromagnet 30 is energized and has magnetism. The magnetism of the corresponding surface of the electromagnet 30 is opposite to that of the magnet block 12. Therefore, under the action of magnetic attraction, the pressurizing piston 4 moves downward along the pressurizing chamber 5, reducing the volume of the pressurizing chamber 5 to achieve pressurization, increasing the flow rate of ascites in the drainage tube 8, and improving the ascites drainage efficiency.

[0047] A discharge pipe 28 is connected to the inner wall of the ascites collection barrel 1 , and the end of the discharge pipe 28 extends to the outside of the ascites collection barrel 1 . A sealing port 29 is movably sleeved on the end surface of the discharge pipe 28 .

[0048] The working principle is as follows: by aligning the plug-in shaft 9 with the plug-in slot on the limit block 10 and pressing it downward, the ascites collection bucket 1 is fixed on the ground base 2, the ground base 2 together with the ascites collection bucket 1 is moved to the vicinity of the patient's bed, and the guide tube 8 is inserted into the first interface 7 and passes through the through slot 6 until its end enters the pressurized chamber 5;

[0049] After the puncture operation, the pressure sensing layer 26 at the front end of the tube body 24 is inserted into the patient's abdomen, and the end of the tube body 24 is connected to the second interface 22 to complete the assembly of the drainage device. The patient's abdominal pressure data is obtained according to the thin film pressure sensor 27. After the control panel performs data analysis, the electromagnet 30 is connected to the circuit. The electromagnet 30 is energized and has magnetism. The magnetism of the corresponding surface of the electromagnet 30 and the magnet block 12 is opposite. Therefore, under the action of magnetic attraction, the pressurizing piston 4 moves downward along the pressurizing chamber 5, reducing the volume of the pressurizing chamber 5 to achieve pressurization, increasing the flow rate of the ascites in the drainage tube 8, and improving the ascites drainage efficiency;

[0050] During the ascites drainage process, ascites enters the connecting tube 18 from the tube body 24, and the growths and coagulated tissues contained in the ascites are crushed by the radially arranged cutting blades 21 to prevent the drainage tube from being blocked;

[0051] After the drainage is completed, the tube body 24 can be pulled out, and the end of the drainage tube is tied tightly. At this time, the medical staff opens the sealing port 29, and the pressurizing piston 4 continues to move downward to pressurize, and the ascites in the ascites collection barrel 1 is discharged, and then the drainage tube is pulled out from the pressurizing piston 4. The drainage tube, the connecting tube 18 and the tube body 24 are all disposable products, and are treated as medical waste after use. The sealing cover plate 3 is separated from the ascites collection barrel 1, and the isolation protective layer 11 on the pressurizing piston 4 is removed and replaced. The isolation protective layer 11 is made of medical rubber material and is a disposable product. It is also treated as medical waste after use. The pressurizing piston 4 is wrapped by the isolation protective layer 11 to isolate ascites pollution and facilitate replacement;

[0052] The ascites collection barrel 1 is removed from the ground base 2 and disinfected, and then the ascites collection barrel 1 and the sealing cover plate 3 are reset in sequence for the next use.

[0053] Embodiment 2:

[0054] like Figure 6 As shown, an ascites drainage device for clinical treatment of gastroenterology includes an ascites collection bucket 1 and a control panel, and the control panel includes a data acquisition unit, a pressure analysis unit, a drainage control unit and an alarm reminder unit;

[0055] The data acquisition unit is used to acquire the intra-abdominal pressure data of the patient through the thin film pressure sensor 27, average the intra-abdominal pressure data and send it to the pressure analysis unit, and acquire the real-time flow rate data of the ascites during the drainage process through the flow rate sensor 23, and send the real-time flow rate data of the ascites to the pressure analysis unit;

[0056] The pressure analysis unit is used to obtain the total volume data of the ascites of the patient, and calculate the ideal drainage speed data according to the intra-abdominal pressure data, and further send the calculated flow rate difference between the real-time flow rate data of the ascites and the ideal drainage speed data to the drainage control unit and the alarm reminder unit;

[0057] The drainage control unit is used to establish a drainage efficiency model according to the volume of the pressurizing chamber 5 and the moving speed of the pressurizing piston 4, and obtain the flow rate difference to output the pressurizing adjustment parameter according to the drainage efficiency model, and adjust the moving speed of the pressurizing piston 4 according to the pressurizing adjustment parameter so that the real-time flow rate data of the ascites reaches the ideal drainage rate data;

[0058] The warning unit is used to preset a flow rate difference threshold, and generate a flow rate abnormality signal based on the flow rate difference judgment, and send the flow rate abnormality signal to the medical remote monitoring terminal to remind medical staff;

[0059] Specifically, a preset flow velocity difference threshold △vm is obtained, and if △v is greater than or equal to △vm, a flow velocity abnormality signal is generated.

[0060] The specific process of calculating the flow rate difference based on the ascites flow rate data and the ideal drainage velocity data is as follows:

[0061] S101, obtaining the total volume data of the patient's ascites to calculate the ideal drainage time, and dividing the drainage period according to the ideal drainage time, the drainage period includes the initial drainage period t1, the steady-state drainage period t2 and the terminal drainage period t3, and correspondingly calculating the stage-by-stage ideal drainage speed data, the ideal drainage speed data includes the initial drainage speed v1, the steady-state drainage speed v2 and the terminal drainage speed v3;

[0062] S102, obtaining the real-time flow velocity data vb of ascites, and calculating the flow velocity difference △v: △v=|vb-vj|, where j=1, 2, 3.

[0063] The specific process of obtaining the flow velocity difference and outputting the pressure adjustment parameters according to the drainage efficiency model is as follows:

[0064] S201, obtaining the volume data Vb of the pressurizing chamber 5 and the cross-sectional area data S0 of the pressurizing chamber 5, it can be known that the height data H0 of the pressurizing chamber 5 is H0=Vb / S0, then the total moving distance of the pressurizing piston 4 is X=H0-h0, where h0 is the height data of the pressurizing piston 4;

[0065] S202. Since the pressurizing piston 4 moves in the pressurizing chamber 5 under the action of magnetic attraction, the velocity equation f(v) of the pressurizing piston 4 can be established according to the current data Ia: Wherein, k is a proportionality coefficient, F1 is the friction force between the pressurizing piston 4 and the pressurizing chamber 5 during the movement of the pressurizing piston 4 in the pressurizing chamber 5, F2 is the pulling force of the traction rope 17 during the movement of the pressurizing piston 4 in the pressurizing chamber 5, m is the weight of the pressurizing piston 4, and t is the time for the pressurizing piston 4 to move in the pressurizing chamber 5;

[0066] S203, obtaining the flow velocity data vm in the drainage tube corresponding to the velocity data vn of the pressure piston 4, establishing a drainage efficiency model, and obtaining the drainage efficiency related equation f(△v): Where e1 and e2 are both proportional coefficients, and e1 is greater than e2;

[0067] S204, substituting the flow rate difference into the drainage efficiency related equation to obtain the speed data of the pressurizing piston 4, substituting the speed data of the pressurizing piston 4 into the speed equation f(v) to output the current data Ia as the pressurization adjustment parameter.

[0068] The present invention obtains the patient's intra-abdominal pressure data through a thin film pressure sensor 27, calculates the ideal drainage speed data based on the patient's total ascites volume data, and monitors the real-time flow rate data of the ascites during the drainage process. Based on the relationship between the moving speed of the pressurizing piston 4 and the pressurizing efficiency, the pressurizing adjustment parameters can be obtained to achieve automatic adjustment of the ascites drainage efficiency without the need for manual observation by medical staff. At the same time, it has an abnormal reminder function, which is convenient for medical staff to detect abnormalities in time.

[0069] The threshold is set to facilitate comparison. The size of the threshold depends on the amount of sample data and the number of bases set by technicians in this field for each group of sample data; as long as it does not affect the proportional relationship between the parameter and the quantized value.

[0070] The above formulas are all dimensionless and numerical calculations. The formula is a formula obtained by collecting a large amount of data and performing software simulation to obtain the most recent real situation. The preset parameters in the formula are set by technicians in this field according to actual conditions.

[0071] In the two embodiments provided in the present application, it should be understood that the disclosed devices and systems can be implemented in other ways; for example, the device embodiments described above are only schematic, for example, the division of the modules is only a logical function division, and there may be other division methods in actual implementation, such as multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed; another point, the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, the indirect coupling or communication connection of devices or modules can be electrical, mechanical or other forms;

[0072] 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. An ascites drainage device for clinical treatment in gastroenterology, comprising an ascites collection bucket (1) and a control panel, characterized in that: The bottom surface of the ascites collection barrel (1) is connected to a ground base (2), the top surface of the ascites collection barrel (1) is movably connected to a sealing cover plate (3), the inner wall of the ascites collection barrel (1) is movably connected to a pressurizing piston (4), a pressurizing chamber (5) is formed between the pressurizing piston (4) and the bottom end of the inner wall of the ascites collection barrel (1), a driving mechanism is installed between the sealing cover plate (3) and the pressurizing piston (4), a first interface (7) is fixedly provided on the top surface of the sealing cover plate (3), a guide tube (8) is inserted into the inner wall of the first interface (7), a through groove (6) is provided inside the pressurizing piston (4), the end of the guide tube (8) passes through the through groove (6) and extends to the inside of the pressurizing chamber (5), the end surface of the guide tube (8) is connected to a crushing mechanism, and the crushing mechanism is connected to a drainage tube.

2. The ascites drainage device for clinical treatment of gastroenterology according to claim 1, characterized in that: The bottom surface of the ascites collection barrel (1) is connected to a plug-in shaft (9), the top surface of the ground-mounted base (2) is provided with a limit block (10), the inside of the limit block (10) is provided with a plug-in slot, the bottom surface of the plug-in slot extends to the bottom surface of the ground-mounted base (2), and the plug-in shaft (9) is movably plugged into the inner wall of the plug-in slot.

3. The ascites drainage device for clinical treatment of gastroenterology according to claim 1, characterized in that: The driving mechanism comprises an electromagnet (30) and a limit assembly, the outer surface of the pressurizing piston (4) is coated with an isolation protection layer (11), a magnet block (12) is fixedly arranged inside the pressurizing piston (4), the electromagnet (30) is fixedly arranged on the bottom surface of the ground base (2), a rechargeable battery is installed inside the ground base (2), and the electromagnet (30) is electrically connected to the rechargeable battery.

4. The ascites drainage device for clinical treatment of gastroenterology according to claim 3, characterized in that: The limiting assembly comprises a traction rope (17); an installation cavity (13) is provided inside the sealing cover plate (3); a winding shaft (14) is movably connected to the inner wall of the installation cavity (13); one end of the winding shaft (14) is connected to a threaded rotating shaft (15); the end of the threaded rotating shaft (15) extends to the outside of the sealing cover plate (3) and is connected to a torsion block (16); the traction rope (17) is movably wound on the outer surface of the winding shaft (14); a rope threading groove is provided inside the sealing cover plate (3); the end of the traction rope (17) passes through the inner wall of the rope threading groove and is connected to the top surface of the pressurizing piston (4).

5. The ascites drainage device for clinical treatment of gastroenterology according to claim 1, characterized in that: The pulverizing mechanism comprises a connecting tube (18), a retardation chamber (19) is provided inside the connecting tube (18), a fixing ring (20) is fixedly provided on the inner wall of the retardation chamber (19), a plurality of cutting blades (21) are radially distributed on the inner wall of the fixing ring (20), a second interface (22) is fixedly provided on the top surface of the connecting tube (18), the drainage tube is plugged into the inner wall of the second interface (22), and a flow rate sensor (23) is fixedly provided on the inner wall of the retardation chamber (19).

6. The ascites drainage device for clinical treatment of gastroenterology according to claim 1, characterized in that: The drainage tube comprises a tube body (24) and a thin film pressure sensor (27); the tube body (24) is plugged into the inner wall of the second interface (22) and extends to the interior of the hysteresis chamber (19); a sensing groove (25) is provided on the outer surface of the tube body (24); a pressure sensing layer (26) is fixedly provided on the inner wall of the sensing groove (25); and a plurality of thin film pressure sensors (27) are evenly distributed between the sensing groove (25) and the pressure sensing layer (26).

7. The ascites drainage device for clinical treatment of gastroenterology according to claim 1, characterized in that: A discharge pipe (28) is connected to the inner wall of the ascites collection barrel (1), the end of the discharge pipe (28) extends to the outside of the ascites collection barrel (1), and a sealing port (29) is movably sleeved on the end surface of the discharge pipe (28).

8. The ascites drainage device for clinical treatment of gastroenterology according to claim 1, characterized in that: The control panel includes a data acquisition unit, a pressure analysis unit, a drainage control unit and an alarm reminder unit; The data acquisition unit is used to acquire the intra-abdominal pressure data of the patient through the thin film pressure sensor (27), average the intra-abdominal pressure data and send it to the pressure analysis unit, and acquire the real-time flow rate data of the ascites during the drainage process through the flow rate sensor (23), and send the real-time flow rate data of the ascites to the pressure analysis unit; The pressure analysis unit is used to obtain the total volume data of the ascites of the patient, and calculate the ideal drainage speed data according to the intra-abdominal pressure data, and further send the calculated flow rate difference between the real-time flow rate data of the ascites and the ideal drainage speed data to the drainage control unit and the alarm reminder unit; The drainage control unit is used to establish a drainage efficiency model according to the volume of the pressurizing chamber (5) and the moving speed of the pressurizing piston (4), and obtain the flow rate difference to output the pressurizing adjustment parameter according to the drainage efficiency model, and adjust the moving speed of the pressurizing piston (4) according to the pressurizing adjustment parameter so that the real-time flow rate data of the ascites reaches the ideal drainage rate data; The warning reminder unit is used to preset a flow rate difference threshold, and generate a flow rate abnormality signal based on the flow rate difference judgment, and send the flow rate abnormality signal to the medical remote monitoring terminal to remind medical staff.

9. The ascites drainage device for clinical treatment of gastroenterology according to claim 8, characterized in that: The specific process of calculating the flow rate difference based on the ascites flow rate data and the ideal drainage velocity data is as follows: S101, obtaining the total volume data of the patient's ascites to calculate the ideal drainage time, and dividing the drainage period according to the ideal drainage time, the drainage period includes the initial drainage period t1, the steady-state drainage period t2 and the terminal drainage period t3, and correspondingly calculating the stage-by-stage ideal drainage speed data, the ideal drainage speed data includes the initial drainage speed v1, the steady-state drainage speed v2 and the terminal drainage speed v3; S102, obtaining the real-time flow velocity data vb of ascites, and calculating the flow velocity difference △v: △v=|vb-vj|, where j=1, 2, 3.

10. The ascites drainage device for clinical treatment of gastroenterology according to claim 8, characterized in that: The specific process of obtaining the flow velocity difference and outputting the pressure adjustment parameters according to the drainage efficiency model is as follows: S201, obtaining the volume data Vb of the pressurizing chamber (5) and the cross-sectional area data S0 of the pressurizing chamber (5), it can be known that the height data H0 of the pressurizing chamber (5) is H0=Vb / S0, then the total moving distance of the pressurizing piston (4) is X=H0-h0, where h0 is the height data of the pressurizing piston (4); S202. Since the pressurizing piston (4) moves in the pressurizing chamber (5) under the action of magnetic attraction, the velocity equation f(v) of the pressurizing piston (4) can be established based on the current data Ia: Wherein, k is a proportionality coefficient, F1 is a friction force between the pressurizing piston (4) and the pressurizing chamber (5) during the process of the pressurizing piston (4) moving in the pressurizing chamber (5), F2 is a pulling force of the traction rope (17) during the process of the pressurizing piston (4) moving in the pressurizing chamber (5), m is a weight of the pressurizing piston (4), and t is a time for the pressurizing piston (4) to move in the pressurizing chamber (5); S203, obtaining the flow velocity data vm in the drainage tube corresponding to the velocity data vn of the pressure piston (4) of a plurality of groups, establishing a drainage efficiency model, and obtaining the drainage efficiency related equation f(△v): Where e1 and e2 are both proportional coefficients, and e1 is greater than e2; S204, substituting the flow rate difference into the drainage efficiency related equation to obtain the speed data of the pressurizing piston (4), substituting the speed data of the pressurizing piston (4) into the speed equation f(v) to output the current data Ia as the pressurizing adjustment parameter.

Images