A heart department drainage effusion processing equipment

Abstract

The application discloses a heart medicine department drainage liquid accumulation treatment equipment, including drainage structure and treatment box for cleaning drainage structure. The drainage structure includes a drive chassis, a reinforcing disc, a liquid storage tank, a sealing cover and a negative pressure pump. The treatment box is internally provided with a clean water storage tank, a disinfectant tank and a waste liquid collecting tank. The liquid storage tank is internally provided with a heat conduction convex disc, a heating resistor, a cyclone structure and a mixing structure. The treatment box is internally provided with a main control core plate and an operation panel. The main control core plate is used for centrally controlling the negative pressure pump, the liquid pump, the heating resistor, the drive motor and the control valve, so that automatic control of the whole process of drainage, cleaning, disinfection and waste discharge is realized. The equipment has the advantages of convenient operation, complete cleaning, reliable disinfection and high automation degree, effectively reduces the operation burden of medical staff and prevents cross infection.

Description

Technical Field

[0001] This invention relates to the field of medical equipment technology, specifically to a device for treating effusion in the cardiology department. Background Technology

[0002] Pericardial effusion is a common condition in cardiology clinics, and drainage is an important treatment method. Currently, the drainage devices used clinically are mostly disposable drainage bags or simple drainage bottles. These drainage reservoirs and tubing are usually made of transparent plastic or silicone, and the container is equipped with a drainage interface and a negative pressure interface, allowing for continuous or intermittent drainage by connecting to a negative pressure source. However, these devices have revealed several technical shortcomings in clinical use: Inconvenient Cleaning and Disinfection: After drainage, the inner walls of the storage tank and tubing retain contaminants such as blood and tissue fluid, and existing equipment lacks an effective automated cleaning and disinfection mechanism. In clinical practice, medical staff must manually disassemble components such as storage tanks, tubing, and sealing caps, use brushes and disinfectant to scrub them, and then disinfect them by soaking or wiping. This process is not only cumbersome, time-consuming, and labor-intensive, but also exposes medical staff to direct contact with contaminants during disassembly and cleaning, posing a risk of occupational exposure and cross-infection.

[0003] Ineffective cleaning: Traditional cleaning methods, such as static soaking or simple rinsing, are insufficient to effectively clean the dead corners of the storage tank's inner wall, bends in the pipeline, and the air intake passage of the negative pressure pump. In particular, in complex structures such as columns and joints inside the tank, residual pollutants can easily form biofilms, breed bacteria, and pose a risk of cross-infection during subsequent use.

[0004] Limited functionality and low integration: Existing drainage equipment only has a collection function. Drainage, cleaning, disinfection, and waste liquid treatment are independent processes that require multiple devices or multiple steps, resulting in low work efficiency and large space occupation.

[0005] Lack of intelligent control: Existing equipment relies on manual judgment of drainage negative pressure, manual switching of cleaning fluid, and manual monitoring of fluid level, resulting in low automation. Clinically, fluid drainage is basically done manually, usually concentrated at a certain time, with the drainage tube clamped at other times, which easily leads to drainage tube blockage; at the same time, the drainage speed and volume are controlled manually and by experience, which is not precise enough, and too fast or too much drainage can easily cause acute right heart failure and pulmonary edema.

[0006] The use and disposal of medical consumables are costly and exacerbate resource consumption and environmental pollution: Currently, disposable drainage bags are widely used in clinical practice. These bags cannot be reused and must be replaced regularly, which not only increases the cost of medical consumables but also significantly increases the volume of medical waste, adding to the burden of disposal. Furthermore, the large-scale use of disposable drainage bags leads to excessive consumption of raw materials, energy, and other resources, and exacerbates plastic pollution.

[0007] Therefore, developing a cardiology drainage fluid treatment device that integrates drainage, automatic cleaning, constant temperature disinfection, and waste fluid collection, and has intelligent control, is of great clinical significance. Summary of the Invention

[0008] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a cardiology drainage and effusion treatment device that solves the problems of: inconvenient cleaning and disinfection; poor cleaning effect; limited functionality and low integration; lack of intelligent control; high cost of medical consumables and their disposal; resource consumption and environmental pollution.

[0009] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a cardiology drainage fluid treatment device, comprising a drainage structure and a treatment box for cleaning the drainage structure. The drainage structure can be placed inside the treatment box. The drainage structure includes a drive chassis, a reinforcing plate on the top of the drive chassis, a storage tank on the top of the reinforcing plate, drainage pipes on both sides of the bottom of the storage tank, a sealing cover on the top of the storage tank, a retaining ring at the bottom of the sealing cover, a negative pressure pump inside the retaining ring, and a flow guide pipe on the top of the sealing cover. The treatment box has an openable flip-top, and a placement groove is provided at the center of the interior of the treatment box. Storage cavities are provided on both sides and the front of the placement groove. A clean water storage tank is placed in the storage cavities on both sides, and a disinfectant tank is placed in the storage cavities on the front. A movable drawer is provided at the bottom of the treatment box, and a waste fluid collection tank is placed inside the movable drawer.

[0010] As a further preferred embodiment of the present invention, a heat-conducting cam is provided at the middle position of the liquid storage tank, and three liquid-conducting protrusions are equidistantly arranged on the outer wall of the heat-conducting cam. A connector is provided on the outer side of the liquid-conducting protrusions, and the connector is connected to the corresponding clean water storage tank or disinfectant tank. Several heating resistors are equidistantly inserted on the heat-conducting cam.

[0011] As a further preferred embodiment of the present invention, a swirling structure is provided on the inner bottom side of the liquid storage tank; the swirling structure includes a drive motor, a bearing cam, a rotating shaft, and stirring blades; the drive motor is located at the bottom of the liquid storage tank, and its output end is fixedly connected to the bearing cam, which is in the shape of a constriction; the top of the bearing cam is connected to the rotating shaft, and a plurality of stirring blades are provided on the outer side of the rotating shaft.

[0012] As a further preferred embodiment of the present invention, a mixing structure is provided inside the liquid storage tank. The mixing structure includes a top guide ring and a bottom guide ring. A plurality of columns are equidistantly arranged between the top guide ring and the bottom guide ring. Rotatable protrusions are equidistantly arranged on the columns, and a plurality of blades are arranged on the outer side of the protrusions.

[0013] As a further preferred embodiment of the present invention, both the clean water storage tank and the disinfectant tank are equipped with liquid pumps, the bottom end of the drain pipe is connected to the waste liquid collection tank, and a control valve is provided on the drain pipe.

[0014] As a further preferred embodiment of the present invention, a main control core board is provided inside the processing box, and an operation panel for controlling the main control core board is provided outside the processing box.

[0015] As a further preferred embodiment of the present invention, the main control core board installed inside the processing box constitutes a centralized intelligent control system. This system is electrically connected to the negative pressure pump, liquid pump, heating resistor, drive motor, control valve, and operation panel, and executes the automatic cleaning and disinfection process according to the following logic: System architecture and signal connection The main control chip board includes at least a central processing unit (CPU), a storage unit, an analog input / output interface, and a digital input / output interface; Input terminals: Electrically connected to the command input buttons on the control panel and an optional level sensor; Output terminals: electrically connected to the start / stop relay of the negative pressure pump, the frequency converter of the liquid pump inside the clean water storage tank and the disinfectant tank, the solid-state relay of the heating resistor on the heat-conducting cam, the direction and speed controller of the drive motor, and the electromagnetic switch of the control valve on the drain pipe.

[0016] As a further preferred embodiment of the present invention, a pressure monitoring and control module is provided on the connecting pipeline between the sealing cap and the negative pressure pump. The pressure monitoring and control module includes a pressure sensor for real-time monitoring of the drainage negative pressure, and an electronically controlled proportional regulating valve for automatically adjusting the drainage speed according to the feedback signal of the pressure sensor. Both the pressure sensor and the electronically controlled proportional regulating valve are electrically connected to the main control core board.

[0017] (III) Beneficial Effects This invention provides a device for treating effusion drainage in cardiology. It has the following beneficial effects: Integrated design, comprehensive functions This invention integrates the drainage structure, clean water storage tank, disinfectant tank, and waste liquid collection tank into the same processing box, combining negative pressure drainage, automatic liquid injection, constant temperature disinfection, vortex rinsing, and waste liquid discharge functions into one unit, eliminating the need to transfer between multiple devices and significantly improving clinical work efficiency.

[0018] Automated cleaning and disinfection, easy to operate With the main control board pre-set cleaning and disinfection programs, users only need to start the system with one button, and the system can automatically complete the entire process of liquid injection, mixing, heating, circulation rinsing, and waste discharge without manual intervention, which greatly reduces the workload of medical staff, avoids direct contact with contaminants, and reduces the risk of infection.

[0019] Dual cleaning structure for thorough cleaning The liquid storage tank is equipped with both a swirling structure (driven by a motor to rotate the stirring blades) and a mixing structure (the liquid flow impacts the rotatable protrusions and blades). The two work together to form a dynamic vortex inside the tank, which thoroughly cleans the inner wall of the tank, the rods, the protrusions, the blades, and the air intake channel of the negative pressure pump. The cleaning effect is better than that of the traditional static soaking method.

[0020] Constant temperature heating sterilization ensures reliable sterilization. The mixed disinfectant solution is heated by a heating resistor on a heat-conducting cam and maintained at a constant temperature of 40℃-60℃, which significantly improves the activity of the disinfectant, enhances the inactivation effect on residual blood, tissue fluid and bacteria, and ensures the reliability of disinfection.

[0021] Intelligent control, traceable This invention incorporates a pressure monitoring and control module, including a pressure sensor and an electronically controlled proportional regulating valve, on the connecting pipeline between the sealing cap and the negative pressure pump. The main control board enables the following precise control: Real-time pressure monitoring: The pressure sensor monitors the drainage negative pressure in real time at a sampling frequency of 10 times / second, and the data is displayed synchronously on the operation panel, so that medical staff can keep track of the drainage status at any time.

[0022] Constant pressure drainage control: After setting the target negative pressure value (-10kPa to -40kPa), the main control board automatically adjusts the opening of the electronically controlled proportional regulating valve through the PID control algorithm based on the real-time feedback signal from the pressure sensor. At the same time, it can also adjust the drive voltage or PWM duty cycle of the negative pressure pump to maintain the pressure stable within the preset range in a closed loop, avoiding excessive negative pressure fluctuations that could harm the patient.

[0023] Three-level safety protection: The software alarm upper limit (-50kPa) triggers an audible and visual alarm and suspends drainage; the hardware absolute safety threshold (-70kPa) directly cuts off the power to the negative pressure pump; the mechanical unloading pressure (-60kPa) triggers the safety valve to automatically unload, and the triple protection ensures that the drainage process is safe and reliable.

[0024] Timed and quantitative drainage: The system can preset the maximum drainage volume and drainage time limit for a single session. When the set value is reached, the drainage will automatically stop to prevent excessive or rapid drainage in a short period of time, which may cause complications such as acute right heart failure and pulmonary edema.

[0025] Automatic blockage detection: When the pressure change rate remains at 0, the system determines that the pipeline is blocked, automatically stops the drainage and issues an alarm to prompt medical staff to handle the situation in a timely manner and avoid drainage failure due to blockage.

[0026] Mode Interlock Protection: When switching to "Cleaning and Disinfection Mode", the system automatically executes the interlock program, forcibly shuts down the negative pressure pump and isolates the negative pressure pipeline, ensuring that the negative pressure device will not be accidentally started during the cleaning process.

[0027] Safe and environmentally friendly, waste liquid is collected in a closed system. Waste liquid generated during cleaning and disinfection is automatically discharged into a bottom waste liquid collection tank through a drain pipe and control valve. The entire process is closed to prevent waste liquid from splashing or evaporating, ensuring a safe and hygienic operating environment. The drainage results can be reused, reducing medical consumable costs and processing costs, reducing resource consumption, and further reducing environmental pollution. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of the drainage structure of the present invention; Figure 2 This is a front view of the drainage structure of the present invention; Figure 3 This is a schematic diagram of the processing box of the present invention; Figure 4 This is a schematic diagram of the liquid storage tank of the present invention; Figure 5 This is a schematic diagram of the hybrid structure of the present invention.

[0029] In the diagram: 1. Processing tank; 2. Drive chassis; 3. Reinforcing plate; 4. Storage tank; 5. Drain pipe; 6. Sealing cap; 7. Clamping ring; 8. Negative pressure pump; 9. Flow guide pipe; 10. Flip cover; 11. Clean water storage tank; 12. Disinfectant tank; 13. Movable drawer; 14. Heat-conducting protrusion; 15. Liquid-conducting protrusion; 16. Heating resistor; 17. Drive motor; 18. Bearing protrusion; 19. Rotating shaft; 20. Stirring blade; 21. Top guide ring; 22. Bottom guide ring; 23. Column; 24. Protruding column; 25. Blade; 26. Control valve; 27. Operation panel; 28. Pressure monitoring and control module. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1-5This invention provides a technical solution: a cardiology drainage fluid treatment device, including a drainage structure and a treatment box 1 for cleaning the drainage structure. The drainage structure can be placed inside the treatment box 1. The drainage structure includes a drive chassis 2, a reinforcing plate 3 on the top of the drive chassis 2, a fluid storage tank 4 on the top of the reinforcing plate 3, drainage pipes 5 on both sides of the bottom of the fluid storage tank 4, a sealing cover 6 on the top of the fluid storage tank 4, and a retaining ring 7 at the bottom of the sealing cover 6. A negative pressure pump 8 is located inside the convex ring 7 of the cover, a flow guide pipe 9 is located on the top of the sealing cover 6, an openable flip cover 10 is located on the top of the treatment box 1, and a placement groove is provided in the center of the interior of the treatment box 1. Storage cavities are provided on both sides and the front side of the placement groove. A clean water storage tank 11 is provided in the storage cavities on both sides, and a disinfectant tank 12 is provided in the storage cavities on the front side. A movable drawer 13 is provided at the bottom of the treatment box 1, and a waste liquid collection tank is provided inside the movable drawer 13.

[0032] A heat-conducting protrusion 14 is located in the middle of the storage tank 4. Three liquid-conducting protrusions 15 are evenly spaced on the outer wall of the heat-conducting protrusion 14. A connector is provided on the outer side of the liquid-conducting protrusions 15, which connects to the corresponding clean water storage tank 11 or disinfectant tank. Several heating resistors 16 are evenly inserted on the heat-conducting protrusion 14. With this structure, the liquid-conducting protrusions 15 can separate the introduction of clean water and disinfectant, avoiding cross-contamination; the heating resistors 16 can directly and quickly heat the mixture, and together with the large-area heat conduction of the heat-conducting protrusion 14, the disinfectant can reach the preset constant temperature range of 40℃-60℃ in a short time, significantly improving the biological inactivation efficiency of the disinfectant, while avoiding damage to the storage tank material caused by local overheating.

[0033] A swirling structure is provided on the bottom side of the internal interior of the storage tank 4. This swirling structure includes a drive motor 17, a bearing cam 18, a rotating shaft 19, and stirring blades 20. The drive motor 17 is located at the bottom of the storage tank 4, and its output end is fixedly connected to the constricted bearing cam 18. The top of the bearing cam 18 is connected to the rotating shaft 19, and several stirring blades 20 are arranged on the outer side of the rotating shaft 19. The drive motor 17 drives the rotating shaft 19 and stirring blades 20 to rotate via the bearing cam 18, generating a forced swirling flow within the storage tank 4. This structure allows for thorough mixing of clean water and disinfectant, forming a uniform working solution. Furthermore, the scouring force generated by the swirling flow effectively removes contaminants adhering to the inner wall of the tank and dead corners of the pipelines, significantly improving the cleaning effect. Simultaneously, the constricted bearing cam 18 reduces fluid flow resistance and lowers motor energy consumption.

[0034] An internal mixing structure is located within the storage tank 4. This structure includes a top guide ring 21 and a bottom guide ring 22. Several pillars 23 are equidistantly arranged between the top and bottom guide rings 21 and 22. Rotatable protrusions 24 are equidistantly arranged on each pillar 23, and several blades 25 are arranged on the outer side of each protrusion 24. When the swirling structure drives the liquid flow, the liquid impacts the protrusions 24 and blades 25, causing them to rotate passively, creating localized turbulence and shear force. This effectively disperses residual blood clots, fibrin, and other viscous contaminants, preventing them from forming stubborn adhesions on the pillars 23 or the inner wall of the storage tank 4. This mixing structure, working synergistically with the swirling structure, achieves a dual cleaning mechanism of "active agitation + passive shearing," resulting in a cleaning effect superior to a single agitation method.

[0035] Both the clean water storage tank 11 and the disinfectant tank 12 are equipped with liquid pumps. The bottom end of the drain pipe 5 is connected to the waste liquid collection tank, and a control valve 26 is installed on the drain pipe 5. The liquid pumps inside both the clean water storage tank 11 and the disinfectant tank 12 are used to quantitatively and periodically inject cleaning and disinfectant solutions into the storage tank 4, ensuring precise and controllable injection volume and avoiding errors or contamination caused by manual addition. The bottom end of the drain pipe 5 is connected to the waste liquid collection tank, and the control valve 26 on the drain pipe 5 enables automatic discharge and closed collection of waste liquid, avoiding direct contact with contaminants by medical personnel and reducing the risk of cross-infection. Simultaneously, the waste liquid collection tank is located within a movable drawer 13 for convenient centralized transportation and harmless treatment.

[0036] The main control board is installed inside the processing chamber 1, and an operation panel 27 for controlling the main control board is located on the outside of the processing chamber 1. As the control center of the system, the main control board can collect operation commands and sensor signals in real time, and send control commands to various actuators (negative pressure pump 8, liquid pump, heating resistor 16, drive motor 17, control valve 26, etc.) to achieve automated and standardized control of the entire process of drainage, cleaning, disinfection, and waste discharge. The operation panel 27 provides a human-machine interface, allowing users to start preset programs with one click or manually adjust various parameters. The operation is simple and intuitive, reducing the professional requirements for operators.

[0037] The main control board inside the treatment chamber 1 forms a centralized intelligent control system. This system is electrically connected to the negative pressure pump 8, liquid pump, heating resistor 16, drive motor 17, control valve 26, and operation panel 27, and executes the automatic cleaning and disinfection process according to the following logic: System architecture and signal connection The main control board includes at least a central processing unit (CPU), a storage unit, analog input / output interfaces, and digital input / output interfaces.

[0038] Input: Electrically connected to the command input button on the operation panel 27 and an optional level sensor.

[0039] Output terminals: electrically connected to the start / stop relay of the negative pressure pump 8, the frequency converter of the internal liquid pump of the clean water storage tank 11 and the disinfectant tank 12, the solid-state relay of the heating resistor 16 on the heat-conducting cam 14, the direction and speed controller of the drive motor 17, and the electromagnetic switch of the control valve 26 on the drain pipe 5.

[0040] Automatic cleaning and disinfection control logic The main control board has a pre-set cleaning and disinfection program. After the liquid storage tank 4 in the drainage structure is placed in the treatment box 1 and the flip cover 10 is closed, the user can start the "cleaning and disinfection" mode with one button on the operation panel 27. The system will run automatically according to the following sequence: Phase 1: Injection and Mixing The main control board first turns on the pump of the clean water storage tank 11 and injects a preset volume of clean water into the storage tank 4 through the connector on the liquid guide protrusion 15. Then, it turns on the pump of the disinfectant tank 12 and injects a preset ratio of disinfectant. After the injection is completed, the main control board starts the drive motor 17, which drives the stirring plate 20 and the swirling structure. At the same time, the liquid flow impacts the protrusion 24 and blade 25 on the mixing structure, so that the clean water and disinfectant are fully mixed in the storage tank 4 to form a uniform disinfection working solution.

[0041] Phase Two: Constant Temperature Heating The main control board activates the heating resistor 16 on the heat-conducting cam 14, and monitors the liquid temperature in real time through a temperature sensor (such as a thermocouple or thermistor) located inside the liquid storage tank 4 or on the surface of the heat-conducting cam 14. This heats the mixed disinfectant solution in the liquid storage tank 4 and maintains it within a preset constant temperature range of 40℃-60℃. This temperature range significantly enhances the activity of the disinfectant, strengthens the disinfection effect on the drainage pipes and the inner wall of the tank, and ensures that no thermal damage is caused to the equipment materials.

[0042] Phase 3: Circulating Flushing The main control core board controls the drive motor 17 to rotate alternately in the forward and reverse directions according to the preset program, driving the swirling structure and stirring plate 20, so that the constant temperature disinfectant liquid forms a dynamic vortex in the storage tank 4, which thoroughly cleans the inner wall of the tank, the column rod 23, the protruding column 24, the blade 25 and the air intake channel of the negative pressure pump 8.

[0043] Phase Four: Waste Disposal and Completion After the cyclic rinsing reaches the preset time, such as 5-10 minutes, the main control board shuts off the heating resistor 16 and all liquid pumps, and opens the control valve 26 on the drain pipe 5. The waste liquid automatically drains into the waste liquid collection tank at the bottom under gravity. After emptying, the main control board can issue an audible and visual prompt via a buzzer or indicator light on the operation panel to inform the user that the cleaning and disinfection process is complete and the drainage structure can be removed for later use.

[0044] Manual control mode Meanwhile, to meet the flexibility requirements of different clinical scenarios, users can also use the independent buttons on the operation panel 27 to execute the manual control mode from the main control chip board, and control each function independently: The start and stop of the negative pressure pump 8 are used to establish and regulate the negative pressure during the drainage process; Independent injection of liquid by each pump; The switching of heating resistor 16 and the setting of the target temperature; The speed and direction of the drive motor 17; The opening and closing of control valve 26 is used to discharge waste liquid.

[0045] Through the aforementioned main control core board system, this invention achieves fully automated and standardized control of the drainage fluid treatment equipment from cleaning and disinfection to waste discharge, significantly reducing the operational burden on medical staff and ensuring the reliability of instrument processing.

[0046] A pressure monitoring and control module 28 is installed on the connecting pipeline between the sealing cap 6 and the negative pressure pump 8. The pressure monitoring and control module includes a pressure sensor for real-time monitoring of the drainage negative pressure and an electrically controlled proportional regulating valve for automatically adjusting the drainage speed according to the feedback signal of the pressure sensor. The pressure sensor and the electrically controlled proportional regulating valve are electrically connected to the main control core board. After the main control core board receives the operation command, it first determines the selected mode: if the "drainage mode" is selected, the system self-checks the airtightness of the negative pressure pipeline, turns on the negative pressure pump (8), and establishes and maintains a stable negative pressure by adjusting the opening of the electrically controlled proportional valve according to the target negative pressure value set by the doctor (preset safety range -10kPa to -40kPa). The system monitors the pressure value in real time. If it exceeds the hardware absolute safety threshold (-70kPa), the power supply of the negative pressure pump is directly cut off; if it exceeds the mechanical unloading pressure (-60kPa), the mechanical safety valve is triggered to unload.

[0047] If the "cleaning mode" is selected, the system first executes an interlock procedure: forcibly shutting down the negative pressure pump (8), closing the solenoid valve on the negative pressure pipeline, and establishing a gas bypass. Only after confirming that the negative pressure system is completely isolated and the pressure is zero can subsequent steps such as liquid injection, heating, and rinsing be allowed. During the cleaning process, the start signal of the negative pressure pump is blocked by the software and cannot be started.

[0048] In use, the control panel employs a dual-backup design of a touchscreen and physical buttons, balancing ease of operation with reliability. The touchscreen is used for parameter setting and data monitoring, while the physical buttons are used for safety operations such as emergency stops.

[0049] I. Panel Layout and Functional Zoning The control panel is mainly divided into the following functional areas: Mode selection area: Used to switch between "drainage mode" and "cleaning and disinfection mode".

[0050] Parameter setting area: Used to set core parameters such as negative pressure, temperature, and time.

[0051] Manual control area: Used for manually starting and stopping negative pressure pumps, liquid pumps, heating, etc.

[0052] Data display area: Real-time display of pressure, temperature, liquid level, total drainage volume, etc.

[0053] Alarm and Status Indicator Area: Displays the operating status of the equipment and alarm information.

[0054] II. Core Function Operation Flow III.1. Negative Pressure Setting and Safety Protection (1) Target negative pressure setting Operation path: Main interface → Traffic generation mode → Negative pressure settings Setting range: -10kPa to -40kPa (adjustable in 1kPa steps) Default value: -25kPa (2) Safety threshold setting (three-level protection)

[0055] (3) Operation method Enter the target value using the "+" / "-" keys or the numeric keypad. The system automatically limits the input range; exceeding the limit will display a message stating "Out of safe range". After setting, a curve comparing the current target value and the actual pressure value will be displayed. 2. Heating temperature setting (1) Temperature parameters Target temperature: 40℃-60℃; 50℃: Temperature of the heating disinfectant solution. Temperature limit 65℃. 65℃ is not adjustable; automatic power-off will occur if the temperature is exceeded. (2) Operation method Enter "Temperature Setting" under "Cleaning and Disinfection Mode" Adjust the target temperature using "+" / "-". Real-time display of the current temperature versus target temperature curve Real-time monitoring during heating, with over-temperature alarm and heating cut-off. 3. Automatic pressure monitoring and drainage control (1) Monitoring parameters Real-time pressure value: 1 kPa to 100 kPa (this refers to the absolute negative pressure value, the sensor range, corresponding to clinical negative pressure of -1 kPa to -100 kPa), sampling frequency 10 times / second, used for closed-loop control.

[0056] (2) Automatic control logic Constant pressure drainage: After setting the target negative pressure, the system automatically adjusts the opening of the proportional valve to maintain stable pressure. Pressure-flow linkage: When the actual negative pressure deviates from the target value by more than 5 kPa, the main control board automatically adjusts the pumping speed of the negative pressure pump by adjusting the driving voltage or PWM duty cycle of the negative pressure pump (8) and the opening degree of the electronically controlled proportional regulating valve, so as to achieve closed-loop pressure compensation.

[0057] Automatic stop conditions (stop if any one of them is met): The cumulative traffic has reached the set value. The rate of pressure change remains at 0 (indicating blockage). The duration of a single traffic acquisition session exceeds the limit (e.g., 30 minutes). A sudden drop in pressure was detected. 4. Automatic disinfection and waste discharge control (1) Disinfection parameter settings Soaking time in disinfectant solution: 5-30 minutes; Rinse 1-5 times, alternating between clean water and disinfectant solution; The rinsing speed is 100-500 rpm, which is the speed of the cyclone stirring motor.

[0058] (2) Automated disinfection process: 1. Inject clean water → 2. Inject disinfectant → 3. Start the vortex structure and mixing structure to mix evenly → 4. Heat to the target temperature → 5. Soak and disinfect for the set time → 6. Drain waste liquid → 7. Inject clean water to rinse → 8. Start the vortex rinsing → 9. Drain waste liquid (cycle the set number of times) → 10. Hot air drying (3) Operation method Select "Cleaning and Disinfection Mode" → Enter "Disinfection Parameters" Set the soaking time, number of rinses, and rinse speed in sequence. Click "One-Click Start" and the system will automatically execute the entire process. Real-time display: current step, remaining time, temperature, liquid level III. Summary of Security Protection Mechanisms Protection function trigger condition execution action recovery method Overpressure protection: If negative pressure > -50 kPa (adjustable), drainage will be paused, an alarm will sound, and drainage will resume only after manual confirmation. Hardware lockout of negative pressure > -70kPa; power to negative pressure pump cut off; repair required. Over-temperature protection: If the temperature exceeds 65℃, heating will be cut off, an alarm will sound, and the system will automatically reset after cooling. When the anti-dry-burning liquid level is too low and heating stops or an alarm sounds, manual refilling is required. If the motor overload current exceeds the set value, the machine will shut down, an alarm will sound, and manual inspection will be required.

[0059] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0060] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for treating effusion drainage in cardiology, characterized in that, The system includes a drainage structure and a processing box (1) for cleaning the drainage structure. The drainage structure can be placed inside the processing box (1). The drainage structure includes a drive chassis (2), a reinforcing plate (3) is provided on the top of the drive chassis (2), a liquid storage tank (4) is provided on the top of the reinforcing plate (3), drain pipes (5) are provided on both sides of the bottom of the liquid storage tank (4), a sealing cover (6) is provided on the top of the liquid storage tank (4), and a retaining ring (7) is provided at the bottom of the sealing cover (6). A negative pressure pump (8) is provided on the inside, and a flow guide pipe (9) is provided on the top of the sealing cover (6). The top of the treatment box (1) is provided with an openable flip cover (10), and a placement slot is provided in the center of the inside of the treatment box (1). Storage cavities are provided on both sides and the front side of the placement slot. A clean water storage tank (11) is provided in the storage cavities on both sides, and a disinfectant tank (12) is provided in the storage cavities on the front side. A movable drawer (13) is provided at the bottom of the treatment box (1), and a waste liquid collection tank is provided inside the movable drawer (13).

2. The cardiology drainage and effusion treatment device according to claim 1, characterized in that: A heat-conducting cam (14) is provided at the middle position of the liquid storage tank (4). Three liquid-conducting protrusions (15) are provided at equal intervals on the outer wall of the heat-conducting cam (14). A connector is provided on the outer side of the liquid-conducting protrusions (15). The connector is connected to the corresponding clean water storage tank (11) or disinfectant tank (12). Several heating resistors (16) are inserted at equal intervals on the heat-conducting cam (14).

3. The cardiology drainage and effusion treatment device according to claim 2, characterized in that: The storage tank (4) has a swirling structure on its inner bottom side; the swirling structure includes a drive motor (17), a bearing cam (18), a rotating shaft (19), and a stirring blade (20); the drive motor (17) is located at the bottom of the storage tank (4), and its output end is fixedly connected to the bearing cam (18) which is constricted; the top of the bearing cam (18) is connected to the rotating shaft (19), and a number of stirring blades (20) are arranged on the outer side of the rotating shaft (19).

4. The cardiology drainage and effusion treatment device according to claim 3, characterized in that: A mixing structure is provided inside the liquid storage tank (4). The mixing structure includes a top guide ring (21) and a bottom guide ring (22). A number of rods (23) are equidistantly arranged between the top guide ring (21) and the bottom guide ring (22). Rotatable protrusions (24) are equidistantly arranged on the rods (23). A number of blades (25) are arranged on the outer side of the protrusions (24).

5. The cardiology drainage and effusion treatment device according to claim 4, characterized in that: The clean water storage tank (11) and the disinfectant tank (12) are both equipped with liquid pumps. The bottom end of the drain pipe (5) is connected to the waste liquid collection tank, and a control valve (26) is installed on the drain pipe (5).

6. The cardiology drainage and effusion treatment device according to claim 1, characterized in that: The processing box (1) is equipped with a main control core board inside, and an operation panel (27) for operating the main control core board is located outside the processing box (1).

7. A cardiology drainage and effusion treatment device according to claim 6, characterized in that: The main control core board installed inside the processing box (1) constitutes a centralized intelligent control system. This system is electrically connected to the negative pressure pump (8), liquid pump, heating resistor (16), drive motor (17), control valve (26), and operation panel (27), and executes the automatic cleaning and disinfection process according to the following logic: System architecture and signal connection The main control chip board includes at least a central processing unit (CPU), a storage unit, an analog input / output interface, and a digital input / output interface; Input terminal: Electrically connected to the command input button on the operation panel (27) and an optional liquid level sensor; Output terminals: electrically connected to the start / stop relay of the negative pressure pump (8), the frequency converter of the internal liquid pump of the clean water tank (11) and the disinfectant tank (12), the solid-state relay of the heating resistor (16) on the heat-conducting cam (14), the direction and speed controller of the drive motor (17), and the electromagnetic switch of the control valve (26) on the drain pipe (5).

8. The cardiology drainage and effusion treatment device according to claim 1, characterized in that: A pressure monitoring and control module (28) is provided on the connecting pipeline between the sealing cover (6) and the negative pressure pump (8). The pressure monitoring and control module includes a pressure sensor for real-time monitoring of the drainage negative pressure and an electronically controlled proportional regulating valve for automatically adjusting the drainage speed according to the feedback signal of the pressure sensor. Both the pressure sensor and the electronically controlled proportional regulating valve are electrically connected to the main control core board.

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