A device for continuously heating and flushing body fluids or inflammatory substances in a cavity

Abstract

The present invention discloses a device for continuously heating and flushing body fluids or inflammatory substances in a cavity, which relates to the technical field of medical devices, and comprises an electromagnetic heating unit, a first liquid tube connecting a liquid-carrying container and a metal hollow tube, a flow rate unit arranged on the first liquid tube, and a second liquid tube and a third liquid tube extending into the body cavity; the third liquid tube is connected to a recovery container and is provided with a recovery volume control unit; through the cooperation of each measurement and control unit and the controller to form a closed-loop feedback, the rapid heating of the medicinal liquid is achieved and the constant temperature and pressure output is flushed into the body cavity, and at the same time, the liquid volume in the body cavity is also accurately controlled during the flushing process; through the coordination of the flow rate unit and the recovery volume control unit, large-flow continuous flushing is supported, and accurate temperature and pressure control inside and outside the body cavity are integrated, which significantly improves the safety and efficiency of clinical operations; and solves the technical problems of slow heating response speed, low temperature and pressure control accuracy, small flushing volume, short flushing time and low safety of the existing heating and flushing devices.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a device for continuously heating and flushing body fluids or inflammatory substances in a cavity. Background Art

[0002] With advances in medical technology, flushing treatments for body fluids or inflammatory substances within cavities (such as the abdominal and thoracic cavities) are becoming increasingly common in clinical practice. This type of treatment requires continuous flushing with a constant-temperature medical solution or saline solution to clear lesions and promote healing. However, existing medical devices used for this type of treatment have significant limitations, making it difficult to meet clinical needs in terms of treatment effectiveness and operational efficiency.

[0003] Current state of technology development:

[0004] Regarding temperature and flow control: Common thermotherapy devices currently on the market (such as ordinary heated irrigators) mostly use simple heating modules (such as resistance wire heating plates or external hot water circulation) to achieve the temperature increase of the medicinal solution or saline solution. For example: the medicinal solution or saline solution is heated by a kettle body with a heat preservation function combined with a heating base, and then output for use, but this process cannot achieve rapid temperature increase, and is limited by the capacity of the kettle body, making it difficult to support the continuous output of large amounts of irrigating fluid. In addition, although some irrigators are equipped with temperature sensors, the contact area between their heating layer and the liquid is limited, resulting in insufficient temperature control accuracy, a risk of burns, or large temperature fluctuations as the flow rate of the irrigating medicinal solution changes.

[0005] Pressure control: Existing thermotherapy irrigation devices often rely on manual pressure application (such as inflating a balloon or using a foot pedal) or gravity-fed infusion. This is not only cumbersome to operate but also suffers from poor pressure stability, making it difficult to meet the continuous constant pressure requirements for cavity irrigation. For example, some heated and pressurized irrigation devices achieve pressurization by squeezing the irrigation fluid bag with an air bag, but this requires frequent adjustment of the throttle nut to adjust the air pressure output or replacement of pressurizing components, increasing operational complexity.

[0006] Regarding safety and cost control: While some surgical irrigant warming devices (such as disposable ones) can achieve constant temperature control, their complex structures and reliance on disposable consumables lead to high costs. Furthermore, they lack real-time safety monitoring modules, such as those that detect temperature and generate alarms when limits are exceeded or provide feedback and adaptive adjustment of irrigant pressure. Without these safety monitoring modules, the heated irrigant could potentially pose medical risks due to temperature loss or pressure abnormalities.

[0007] The current existing technical problems are:

[0008] 1. The existing heating and flushing device has insufficient temperature control and cannot achieve rapid temperature increase and continuous constant temperature output of the liquid medicine. In addition, the temperature sensor and the heating module have poor coordination, which can easily lead to large temperature fluctuations or local overheating of the heated liquid (liquid medicine or saline), resulting in possible scalding risks.

[0009] 2. The continuous heating performance of existing heating and flushing devices is poor. Due to the limitations of the heating performance and the limited capacity of the container for storing the liquid medicine, it is impossible to continuously heat a large amount of heated liquid (liquid medicine or saline solution). The heating capacity is limited. For surgeries or scenes that require long-term (up to 20 hours) continuous flushing, its continuous heating and flushing performance is insufficient, affecting the therapeutic effect of the course of treatment that requires long-term flushing.

[0010] 3. The existing heating and flushing device has poor pressure stability. The heating and flushing device relies on manual pressurization or a simple mechanical pressurization structure, which makes it difficult to maintain a constant flushing pressure for the output liquid, affecting the effect of the flushing treatment.

[0011] 4. Existing heated flushing devices are complex to operate and inefficient. They require frequent adjustments to the output pressure or replacement of pressurized components, which increases the operational burden on medical staff. In particular, their rapid response performance required in emergency scenarios is significantly insufficient.

[0012] 5. There are deficiencies in the existing safety monitoring mechanisms for heated flushing devices. Most heated flushing devices lack real-time temperature and pressure abnormality alarm functions, posing potential medical risks.

[0013] 6. The existing heating and flushing devices are expensive to use, and some high-precision constant temperature devices rely on complex structures or disposable consumables, which limits their clinical popularization.

[0014] The above problems seriously restrict the effectiveness and safety of the intracavitary irrigation treatment method. There is an urgent need for a heating and irrigation device that can integrate rapid heating, constant temperature and pressure output, intelligent monitoring and low-cost to meet the existing irrigation treatment methods. Rapid heating response, precise temperature control, large-scale irrigation, long-term irrigation, precise pressure control and safe and reliable clinical needs.

[0015] In summary, it is found that the existing technology has at least the following technical problems:

[0016] Existing heating and flushing devices have technical problems such as slow heating response speed, low temperature and pressure control accuracy, small flushing volume, short flushing time and low safety. Summary of the Invention

[0017] The purpose of the present invention is to provide a continuous heating and flushing device for body fluids or inflammatory substances in a cavity, so as to solve the technical problems of existing heating and flushing devices, such as slow heating response speed, low temperature and pressure control accuracy, small flushing volume, short flushing time and low safety.

[0018] The various technical effects that can be produced by the preferred technical solutions among the various technical solutions provided by the present invention are described in detail below.

[0019] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0020] The present invention provides a device for continuously heating and flushing body fluids or inflammatory substances in a cavity, comprising a first liquid pipe, which is provided with a front temperature measuring point and a flow rate unit in sequence along the direction of liquid flow, and the two ends of the first liquid pipe are connected to a liquid-carrying container and a metal hollow tube for loading the liquid to be heated; and an electromagnetic heating unit for heating the metal hollow tube by utilizing electromagnetic induction and heating the liquid flowing through the metal hollow tube; and a second liquid pipe, which is connected to the metal hollow tube and is provided with a rear temperature measuring point along the direction of liquid flow; the end of the second liquid pipe extends into the body cavity to be flushed; and a third liquid pipe, one end of the third liquid pipe is placed in the body cavity to recover liquid, the other end of the third liquid pipe is connected to a recovery container, and both ends A recovery volume control unit is provided between the two sides; an intracavity temperature measuring unit, an intracavity pressure measuring unit and an intracavity liquid volume measuring unit are provided, and the intracavity temperature measuring unit, the intracavity pressure measuring unit and the intracavity liquid volume measuring unit are placed in the body cavity to detect temperature, pressure and liquid volume; the liquid carrying container and the recovery container are respectively provided with a capacity detection unit for detecting the real-time content of the container; and a controller electrically connected to the front temperature measuring point, the flow rate unit, the electromagnetic heating unit, the rear temperature measuring point, the intracavity temperature measuring unit, the intracavity pressure measuring unit, the intracavity liquid volume measuring unit, the recovery volume control unit and the capacity detection unit, so that the second liquid pipe and the third liquid pipe are flushed in the body cavity in a constant temperature and pressure manner.

[0021] In one embodiment, the controller is electrically connected to the front temperature measuring point, the flow rate unit, the electromagnetic heating unit, the rear temperature measuring point, the intracavity temperature measuring unit, the intracavity pressure measuring unit, the intracavity liquid volume measuring unit, the recovery volume control unit and the capacity detection unit.

[0022] In one embodiment, the flow rate unit includes a flushing flow rate control component and a flushing flow rate monitoring component, and the flushing flow rate monitoring component and the flushing flow rate control component are respectively used to monitor and control the flow rate of the liquid transported from the first liquid pipe to the metal hollow tube.

[0023] In one embodiment, the recovery volume control unit includes a recovery flow rate control component and a recovery flow rate monitoring component, and the recovery flow rate control component and the recovery flow rate monitoring component are respectively used to monitor and control the liquid recovery flow rate of the third liquid tube extracting liquid in the body cavity and transporting it to the recovery container.

[0024] In one embodiment, the controller is used to receive data on a set target liquid flow rate and a target liquid temperature, and to control: before running the heated flushing, the volume data of the liquid in the liquid-carrying container and the temperature data of the liquid before heating measured by the front temperature measuring point are read by the capacity detection unit, and the heating power required by the electromagnetic heating unit to heat the liquid flowing through to the target liquid temperature is calculated using an algorithm; after running the heated flushing, the heating effect of the liquid is monitored using a post-heating temperature feedback mechanism composed of the rear temperature measuring point and the intracavitary temperature measuring unit; then, based on the liquid heating state, the actual heating power of the metal hollow tube on the liquid flowing through is calculated by an algorithm, and the heating power required to be adjusted by the electromagnetic heating unit is calculated using an algorithm, and finally the liquid is quickly heated to the set target temperature, while the real-time pressure and liquid volume in the body cavity are monitored by the intracavitary pressure measuring unit and the intracavitary liquid volume measuring unit; during the heated flushing, the data calculated by the algorithm are used to control the flushing flow rate control component and the recovery flow rate control component to control the flushing flow rate and recovery flow rate of the liquid in the body cavity, thereby controlling the flushing effect in the body cavity.

[0025] In one embodiment, when the controller is running a heated flushing operation, the controller measures the amount of liquid to be heated and the amount of liquid recovered in the liquid-carrying container and the recovery container respectively through the capacity detection unit, and directly obtains the remaining liquid amount and the calculated remaining recovery capacity. Combined with the flow rate of the liquid to be heated monitored by the flushing flow rate monitoring component and the liquid recovery flow rate monitored by the recovery flow rate monitoring component, the algorithm calculates the time when the remaining liquid amount in the liquid-carrying container is used up and the time when the remaining recovery capacity of the recovery container is used up, and the controller sends data containing warnings in advance.

[0026] In one embodiment, the metal hollow tube is in the shape of a coil having multiple turns, and the metal hollow tube is a stainless steel hollow tube.

[0027] In one embodiment, the front temperature measuring point is installed with a front temperature measuring sensor; the rear temperature measuring point is installed with a rear temperature measuring sensor.

[0028] In one embodiment, the first liquid tube and the metal hollow tube are disposable tubes or reusable tubes.

[0029] In one embodiment, when the first liquid pipe and the metal hollow pipe are reusable pipes, an anti-reverse unit is installed on the second liquid pipe.

[0030] In one embodiment, the anti-reverse unit is a single anti-reverse valve, or a combination of multiple anti-reverse valves and disposable connectors.

[0031] The present invention also provides a control component, including a control unit and any of the above-mentioned continuous heating and flushing devices. The control unit is electrically connected to the controller for human-computer interaction control. When the continuous heating and flushing device is in operation, data is sent to the controller or data is received from the controller.

[0032] In one embodiment, the control unit includes an input module and a display module; the input module is used to input and send data to the controller; the display module is used to receive and display data sent back by the controller.

[0033] In one embodiment, the control unit is a touch screen display that integrates the input module and the display module.

[0034] The present invention also provides a warning component, including a warning unit and any one of the above-mentioned continuous heating and flushing devices, wherein the warning unit is electrically connected to the controller for receiving warning data issued by the controller and converting the warning data into sound and light for warning reminder.

[0035] The present invention also provides a control method, comprising any one of the above-mentioned continuous heating and flushing devices and the following control steps: S1, start;

[0036] S2, equipment initialization check;

[0037] S3, determine whether the equipment self-test has passed; if yes, proceed to step S4; if not, record the abnormality and suspend the use of the continuous heating and flushing device;

[0038] S4, the controller receives the set operating data and reads the real-time operating data;

[0039] S4.1. Set the flow rate, target temperature, perfusion volume, and operating time of the continuous heating and flushing device;

[0040] S4.2. The controller reads and records the real-time temperature, capacity, flow rate, perfusion volume, pressure, and time data;

[0041] S5, continuous heating and flushing device operation;

[0042] S5.1. The liquid begins to flow along the pipe;

[0043] S5.2. The electromagnetic heating unit starts to work and heats the liquid;

[0044] S5.3, liquid temperature control;

[0045] S6. Determine whether the liquid temperature control is normal; if yes, proceed to step S7; if no, return to step S5.2 to adjust the heating power;

[0046] S7, fluid flows into the body cavity;

[0047] Determine whether the body cavity pressure is normal; if so, continue to flow the liquid into the body cavity; if not, stop the liquid flow;

[0048] S8, executed simultaneously with step S7, the liquid flows out of the body cavity;

[0049] S9, liquid collection;

[0050] Body cavity perfusion volume control; determine whether the amount of liquid in the body cavity is sufficient; if yes, continue to step S8; if not, return to execute body cavity perfusion volume control;

[0051] Executed simultaneously with the body cavity perfusion volume control, the heated liquid volume and treatment time are determined; if the liquid volume is determined to be sufficient or the heated irrigation treatment is not completed, execute step S4.2; if the liquid volume is determined to be insufficient or the heated irrigation treatment is completed, execute the liquid flow stop;

[0052] S10, the electromagnetic heating unit stops working;

[0053] S11, end.

[0054] The beneficial effects of the present invention are as follows:

[0055] The present invention provides a device for continuously heating and flushing body fluids or inflammatory substances in a cavity, a control component, a warning component and a control method. The continuous heating and flushing device includes a first liquid pipe, which is provided with a front temperature measuring point and a flow rate unit in sequence along the direction of liquid flow, and the two ends of the first liquid pipe are connected to a liquid-carrying container and a metal hollow tube for loading the liquid to be heated; and an electromagnetic heating unit that heats the metal hollow tube by utilizing electromagnetic induction and heats the liquid flowing through the metal hollow tube; and a second liquid pipe, which is connected to the metal hollow tube and is provided with a rear temperature measuring point along the direction of liquid flow; the end of the second liquid pipe extends into the cavity to be flushed The invention provides a body cavity for washing; a third liquid pipe, one end of which is placed in the body cavity to recover liquid, the other end of which is connected to a recovery container, and a recovery volume control unit is provided between the two ends; an intracavitary temperature measuring unit, an intracavitary pressure measuring unit, and an intracavitary liquid volume measuring unit, the intracavitary temperature measuring unit, the intracavitary pressure measuring unit, and the intracavitary liquid volume measuring unit being placed in the body cavity to detect temperature and pressure; the liquid-carrying container and the recovery container are respectively provided with a capacity detection unit for detecting the real-time content of the container; and a controller for causing the second liquid pipe and the third liquid pipe to perform flushing in the body cavity at a constant temperature and pressure. The embodiment of the present invention provides a control unit and a continuous heating and flushing device, the control unit being electrically connected to the controller for human-computer interaction control of the continuous heating and flushing device, and sending data to the controller or receiving data returned by the controller when the continuous heating and flushing device is in operation. The embodiment of the present invention provides a warning unit and a continuous heating and flushing device, the warning unit being electrically connected to the controller for receiving warning data issued by the controller and converting it into sound or light for warning reminder. The control method provided by the embodiment of the present invention includes the step of controlling the operation of a continuous heating and irrigation device. This method is advantageous in that it can improve thermal response speed, enhance temperature and pressure control accuracy, increase irrigation volume, extend irrigation time, and improve the safety of irrigation treatment.

[0056] Specifically, the continuous heating and flushing device provided in the embodiments of the present invention addresses the technical deficiencies of existing heating and flushing devices and achieves the following significant advantages through innovative structural design and intelligent control strategies:

[0057] (1) Achieve revolutionary improvement in heating efficiency and temperature control accuracy

[0058] The technical solution of electromagnetic induction heating of the metal hollow tube is adopted, and the front temperature measuring point, the rear temperature measuring point and the controller are combined to form a temperature closed-loop feedback and control before and after the heating of the liquid medicine, thereby solving the problems of low heat conduction efficiency and large temperature fluctuations of traditional heating modules (such as resistance wire or external water circulation).

[0059] Experiments and operational data collected from the continuous heating and flushing device show that at a high flow rate of 500 ml / min, the temperature of the liquid can rise by over 20°C within 20 seconds after flowing through the hollow metal tube. Furthermore, when the continuous heating and flushing device enters the constant temperature phase, the temperature error can be controlled to ≤±0.5°C, far exceeding the heating rate of existing technologies. The electromagnetic heating unit heats the hollow metal tube through electromagnetic induction, and the direct contact between the metal hollow tube and the liquid significantly improves heat exchange efficiency while avoiding the risk of liquid carbonization caused by localized overheating of traditional heating plates.

[0060] (2) Realize coordinated control of dynamic pressure and flow

[0061] The linkage between the flow rate unit, the recovery volume control unit, and the intracavitary pressure measurement unit enables real-time and precise regulation of the intracavitary irrigation pressure. The continuously heated irrigation device, which achieves self-adaptation through algorithmic calculations, can dynamically compensate for pressure imbalances caused by changes in the cavity's morphology or fluctuations in fluid recovery. The pressure measurement error is controlled within ±0.1 kPa, significantly outperforming existing devices that rely on manual pressurization or simple mechanical adjustments.

[0062] In addition, the continuous heating flushing device can also achieve a control accuracy of the flushing liquid flow rate error of ≤±5%, so that the continuous heating flushing device can support the clinical needs of large flow and long-term continuous flushing.

[0063] (3) Realize multi-dimensional security monitoring and intelligent management

[0064] By measuring the temperature by the intracavitary temperature measuring unit, measuring the body fluid volume by the intracavitary liquid volume measuring unit, and performing capacity detection on the recovery container by the recovery volume control unit and the capacity detection unit, a multiple redundant monitoring network is formed, which can synchronously track the internal temperature of the body cavity and achieve a detection accuracy of within ±0.1°C for the data error of obtaining the internal temperature of the body cavity, within ±10ml for the data error of obtaining the internal flushing liquid volume of the body cavity, and within ±0.05L for the data error of the remaining volume in the recovery container.

[0065] Combined with the abnormal threshold alarm function of the controller, it can immediately block safety risks such as excessive temperature in the body cavity, abnormal pressure in the body cavity, and uncontrolled flushing fluid volume in the body cavity, thereby improving the safety of heated flushing treatment using the continuous heating flushing device and solving the problem of the lack of safety monitoring modules in traditional devices or the limited effectiveness of safety monitoring modules.

[0066] (4) Achieve high-performance and low-cost compatible design

[0067] The electromagnetic heating unit of the continuous heating flushing device is reusable and has a modular replacement structure: the detachable and disposable liquid-carrying container, the metal hollow tube, the first liquid tube, the second liquid tube, the third liquid tube and the recovery container; when in use, only the disposable consumables of the liquid-carrying container, the metal hollow tube, the first liquid tube, the second liquid tube, the third liquid tube and the recovery container need to be replaced, so that the continuous heating flushing device can achieve reliable medical hygiene and infection control treatment, and greatly reduce the cost of use. Compared with the existing technology, which relies on a complete set of replacement or a set of independent constant temperature flushing devices for each patient, the continuous heating flushing device of the present invention can reduce the cost of single use, while supporting long-term, high-load, constant temperature and constant pressure operation for more than 8 hours, breaking through the short-term flushing bottleneck of traditional devices caused by shutdown due to short heating element life or flushing liquid loading capacity or heating capacity limitations.

[0068] (5) Achieve scalability of clinical application scenarios

[0069] The intracavity detection unit can be independently or integratedly arranged in the second liquid tube and the third liquid tube to adapt to the flushing needs of different body cavity structures such as the abdominal cavity, thoracic cavity, and joint cavity. For example, the continuous heating flushing device of the present invention is applied to nasal flushing, and the nasal mucosa damage can be avoided by combining the miniaturized liquid tube with the high-sensitivity pressure sensor; when applied to peritoneal lavage, the rapid heating characteristics of the liquid can be achieved by using the large-capacity liquid-carrying container or directly replacing the new liquid-carrying container filled with liquid medicine, and by cooperating with the electromagnetic heating unit and the metal hollow tube, which can meet the requirements of rapid processing and large-flow continuous flushing in emergency surgery; compared with the traditional constant temperature flushing device with a single function, the versatility and scene adaptability of the continuous heating flushing device of the present invention are significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the implementation. Obviously, the drawings described below are only some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0071] Figure 1 It is a structural schematic diagram of the continuous heating and flushing device of the present invention;

[0072] Figure 2 Schematic diagram of the control principle of the control method of the continuous heating and flushing device of the present invention;

[0073] Figure 3 Schematic diagram of the heating principle of the heating device of the present invention;

[0074] Figure 4 This is the second structural diagram of the continuous heating and flushing device of the present invention.

[0075] The accompanying drawings are numerals as follows:

[0076] 1. First liquid pipe; 11. Front temperature measurement point; 12. Flow rate unit; 13. Liquid carrying container;

[0077] 2. Electromagnetic heating unit; 21. Metal hollow tube;

[0078] 3. Second liquid pipe; 31. Rear temperature measurement point; 32. Three-way solenoid valve; 33. Liquid discharge pipe;

[0079] 4. Third liquid pipe; 41. Recovery container; 42. Recovery volume control unit;

[0080] 5. In-cavity temperature measurement unit;

[0081] 6. Intracavity pressure measuring unit;

[0082] 7. Intracavity liquid volume measurement unit;

[0083] 8. Capacity detection unit; 81. First capacity sensor; 82. Second capacity sensor;

[0084] 9. Body cavity. DETAILED DESCRIPTION

[0085] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention will be further described below with reference to the accompanying drawings and examples. However, the example embodiments can be implemented in various forms and should not be understood as being limited to the embodiments described herein; on the contrary, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concepts of the example embodiments to those skilled in the art. The same figure marks in the figures represent the same or similar structures, and their repeated descriptions will be omitted. The words expressing position and direction described in the present invention are all explained with reference to the accompanying drawings as examples, but changes can be made as needed, and the changes made are all included in the scope of protection of the present invention. The drawings of the present invention are only used to illustrate the relative position relationship and do not represent the true proportion.

[0086] With advances in medical technology, flushing treatments for body fluids or inflammatory substances within cavities (such as the abdominal and thoracic cavities) are becoming increasingly common in clinical practice. This type of treatment requires continuous flushing with a constant-temperature medical solution or saline solution to clear lesions and promote healing. However, existing medical devices used for this type of treatment have significant limitations, making it difficult to meet clinical needs in terms of treatment effectiveness and operational efficiency.

[0087] Current state of technology development: Regarding temperature and flow control: Common thermotherapy devices currently on the market (such as ordinary heated irrigators) mostly use simple heating modules (such as resistance wire heating plates or external hot water circulation) to achieve the temperature increase of the medicinal solution or saline solution. For example: the medicinal solution or saline solution is heated by a kettle body with a heat preservation function combined with a heating base, and then output for use, but this process cannot achieve rapid temperature increase, and is limited by the capacity of the kettle body, making it difficult to support the continuous output of large amounts of flushing liquid. In addition, although some irrigators are equipped with temperature sensors, the contact area between their heating layer and the liquid is limited, resulting in insufficient temperature control accuracy, a risk of burns, or large temperature fluctuations as the flow rate of the flushing medicinal solution changes.

[0088] Pressure control: Existing thermotherapy irrigation devices often rely on manual pressure application (such as inflating a balloon or using a foot pedal) or gravity-fed infusion. This is not only cumbersome to operate but also suffers from poor pressure stability, making it difficult to meet the continuous constant pressure requirements for cavity irrigation. For example, some heated and pressurized irrigation devices achieve pressurization by squeezing the irrigation fluid bag with an air bag, but this requires frequent adjustment of the throttle nut to adjust the air pressure output or replacement of pressurizing components, increasing operational complexity.

[0089] Regarding safety and cost control: While some surgical irrigant warming devices (such as disposable ones) can achieve constant temperature control, their complex structures and reliance on disposable consumables lead to high costs. Furthermore, they lack real-time safety monitoring modules, such as those that detect temperature and generate alarms when limits are exceeded or provide feedback and adaptive adjustment of irrigant pressure. Without these safety monitoring modules, the heated irrigant could potentially pose medical risks due to temperature loss or pressure abnormalities.

[0090] The current technical problems are specifically: the existing heating and flushing devices have insufficient temperature control, which cannot achieve rapid heating of the medicinal liquid and continuous constant temperature output, and the temperature sensor and the heating module have poor coordination, which can easily lead to large temperature fluctuations or local overheating of the heated liquid (medicine or saline), resulting in possible burn risks.

[0091] The existing heating and flushing devices have poor continuous heating performance. Due to the limitations of the heating performance and the limited capacity of the container for storing the liquid medicine, it is impossible to continuously heat a large amount of heated liquid (liquid medicine or saline solution). The heating capacity is limited. For surgeries or scenarios that require long-term (up to 20 hours or more) continuous flushing, its continuous heating and flushing performance is insufficient, affecting the therapeutic effect of the treatment course that requires long-term flushing.

[0092] The existing heated irrigation device has poor pressure stability. The heated irrigation device relies on manual pressurization or a simple mechanical pressurization structure, which makes it difficult to maintain a constant irrigation pressure for the output liquid, affecting the effect of the irrigation treatment.

[0093] Existing heated flushing devices are complex to operate and inefficient. They require frequent adjustment of output pressure or replacement of pressurized components, which increases the operational burden on medical staff. In particular, the rapid response performance required in emergency scenarios is significantly insufficient.

[0094] There are deficiencies in the existing safety monitoring mechanisms for heated flushing devices, and most heated flushing devices lack real-time temperature and pressure abnormality alarm functions, posing potential medical risks.

[0095] Existing heated flushing devices are expensive to use, and some high-precision constant temperature devices rely on complex structures or disposable consumables, which limits their clinical popularity.

[0096] The above problems seriously restrict the effectiveness and safety of the intracavitary irrigation treatment method. There is an urgent need for a heating and irrigation device that can integrate rapid heating, constant temperature and pressure output, intelligent monitoring and low-cost to meet the existing irrigation treatment methods. Rapid heating response, precise temperature control, large-scale irrigation, long-term irrigation, precise pressure control and safe and reliable clinical needs.

[0097] In view of this, a specific embodiment provides a continuous heating and flushing device for body fluids or inflammatory substances in a cavity, including an electromagnetic heating unit, a first liquid tube connecting a liquid-carrying container and a metal hollow tube, a flow rate unit provided on the first liquid tube, and a second liquid tube and a third liquid tube extending into the body cavity; the third liquid tube is connected to a recovery container and is provided with a recovery volume control unit; through the cooperation of each measurement and control unit and the controller to form a closed-loop feedback, the rapid heating of the liquid is achieved and the constant temperature and pressure output is flushed into the body cavity, and at the same time, the amount of liquid in the body cavity is also accurately controlled during the flushing process; through the flow rate unit and the recovery volume control unit The present invention can realize rapid heating, precise control of the temperature and flow rate of the flushing liquid, and significantly improve the safety of clinical operation of the continuous heating flushing device by enhancing the level of automatic monitoring and coordinating with the closed-loop feedback control circuit, thereby effectively solving the technical problems of the existing heating flushing device such as slow heating response speed, low temperature and pressure control accuracy, small flushing volume, short flushing time and low safety.

[0098] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0099] Figure 1 It is a structural schematic diagram of the continuous heating and flushing device of the present invention.

[0100] The first embodiment of the continuous heating flushing device is as follows Figure 1As shown, it includes a first liquid pipe 1, which is provided with a front temperature measuring point 11 and a flow rate unit 12 in sequence along the direction of liquid flow, and the two ends of the first liquid pipe 1 are connected to a liquid-carrying container 13 and a metal hollow tube 21 for loading the liquid to be heated; and an electromagnetic heating unit 2 that heats the metal hollow tube 21 by utilizing electromagnetic induction and heats the liquid flowing through the metal hollow tube 21; and a second liquid pipe 3, the second liquid pipe 3 is connected to the metal hollow tube 21, and is provided with a rear temperature measuring point 31 along the direction of liquid flow; the end of the second liquid pipe 3 extends into the body cavity 9 to be flushed; and a third liquid pipe 4, one end of the third liquid pipe 4 is placed in the body cavity 9 to recover the liquid, and the other end of the third liquid pipe 4 is connected to a recovery container 41, and a recovery container 41 is provided between the two ends. The volume control unit 42; and the intracavitary temperature measuring unit 5, the intracavitary pressure measuring unit 6 and the intracavitary liquid volume measuring unit 7, which are placed in the body cavity 9 to perform temperature, pressure and liquid volume detection; the liquid carrying container 13 and the recovery container 41 are respectively provided with a capacity detection unit 8 for detecting the real-time content of the container; and a controller electrically connected to the front temperature measuring point 11, the flow rate unit 12, the electromagnetic heating unit 2, the rear temperature measuring point 31, the intracavitary temperature measuring unit 5, the intracavitary pressure measuring unit 6, the intracavitary liquid volume measuring unit 7, the recovery volume control unit 42 and the capacity detection unit 8, so that the second liquid pipe 3 and the third liquid pipe 4 are flushed in the body cavity 9 in a constant temperature and constant pressure manner.

[0101] The liquid is a medical solution or physiological saline.

[0102] Specifically, the metal hollow tube 21 is provided with a liquid inlet and a liquid outlet. The first liquid tube 1 is connected to the liquid carrying container 13 and the liquid inlet of the metal hollow tube 21 , while the liquid outlet of the metal hollow tube 21 is connected to one end of the second liquid tube 3 .

[0103] During installation and connection, the first liquid pipe 1 passes through the flow rate unit 12 and is connected to the liquid inlet end of the metal hollow pipe 21 .

[0104] The capacity detection unit 8 for detecting the real-time liquid amount or capacity of the liquid-carrying container 13 and the recovery container 41 is a sensor that can be separated and disassembled from the liquid-carrying container 13 and the recovery container 41 .

[0105] Regarding the liquid-carrying container 13, the first liquid tube 1, the metal hollow tube 21, the second liquid tube 3, the third liquid tube 4 and the recovery container 41, the second liquid tube 3 and the third liquid tube 4 both have a section that needs to be extended into the body cavity 9 for flushing and suction respectively, so the second liquid tube 3 and the third liquid tube 4 must be disposable pipes, so that the next infection can be avoided by repeatedly using the continuous heating and flushing device.

[0106] Specifically, the continuous heating and flushing device provided in the embodiments of the present invention addresses the technical deficiencies of existing heating and flushing devices and achieves the following significant advantages through innovative structural design and intelligent control strategies:

[0107] Achieve revolutionary improvements in heating efficiency and temperature control accuracy: Adopt the technical solution of electromagnetic induction heating of the metal hollow tube 21, combined with the front temperature measuring point 11, the rear temperature measuring point 31 and the controller, to form a temperature closed-loop feedback and control before and after the liquid heating, solving the problems of low heat conduction efficiency and large temperature fluctuations of traditional heating modules (such as resistance wire or external water circulation).

[0108] Through experiments, the operating data of the continuous heating and flushing device was collected and showed that at a high flow rate of 500ml / min, the temperature of the liquid medicine can be raised to more than 20°C within 20 seconds after flowing through the metal hollow tube 21. Moreover, when the continuous heating and flushing device enters the constant temperature stage, the temperature error can be controlled to ≤±0.5°C. Compared with the prior art heating time ≥1 minute and constant temperature error ±2°C, the heating speed and temperature control accuracy achieved by the technical solution of the present invention far exceed the heating performance and temperature control accuracy of the prior art constant temperature flushing device. The electromagnetic heating unit 2 heats the metal hollow tube 21 by electromagnetic induction, and the heating method of direct contact between the metal hollow tube 21 and the liquid greatly improves the heat exchange efficiency, while avoiding the risk of liquid carbonization caused by local overheating of the traditional heating plate.

[0109] Achieve coordinated control of dynamic pressure and flow: Through the linkage of the flow rate unit 12, the recovery volume control unit 42, and the intracavitary pressure measurement unit 6, real-time and precise adjustment of the irrigation pressure in the body cavity 9 is achieved. The continuous heating and irrigation device achieves self-adaptation through algorithmic calculation, and can dynamically compensate for pressure imbalances caused by changes in the shape of the body cavity 9 or fluctuations in liquid recovery. The pressure measurement error is controlled within ±0.1kPa. Combined with precise pressure measurement and the flow rate unit 12 and recovery volume control unit 42, the pressure of the liquid medicine input into the body cavity 9 can be precisely controlled. The pressure control performance of the continuous heating and irrigation device of the present invention is significantly better than the performance of existing devices that rely on manual pressurization or simple mechanical adjustment, which usually achieve pressure fluctuations of ≥1kPa.

[0110] In addition, the continuous heating flushing device can also achieve a control accuracy of ≤±5% for the flushing liquid flow rate error, allowing the continuous heating flushing device to support clinical needs for large flow (≥500ml / min) and long-term continuous flushing.

[0111] Realize multi-dimensional safety monitoring and intelligent management: measure the temperature through the intracavitary temperature measurement unit 5, measure the amount of fluid in the body through the intracavitary liquid measurement unit 7, and perform capacity detection on the recovery container 41 through the recovery volume control unit 42 and the capacity detection unit 8, forming a multiple redundant monitoring network, which can synchronously track the internal temperature of the body cavity 9 and achieve the data error of obtaining the internal temperature of the body cavity 9 within ±0.1℃, the data error of obtaining the internal flushing liquid volume of the body cavity 9 within ±10ml, and the data error of the residual volume in the recovery container 41 within ±0.05L.

[0112] Combined with the controller's abnormal threshold alarm function, it can instantly block safety risks such as excessive temperature within body cavity 9, abnormal pressure within body cavity 9, and uncontrolled flushing fluid volume within body cavity 9. This improves the safety of heated flushing therapy using the continuous heating device, resolving the issue of traditional devices lacking or having limited safety monitoring modules. When the temperature within body cavity 9 deviates by 0.5°C from the set value, the control system of the continuous heating device adjusts the electromagnetic heating power within 0.5 seconds, adjusting the temperature of the liquid medicine input into body cavity 9 and simultaneously withdrawing the flushing fluid from the body cavity 9 via the recovery control unit 42, thereby preventing tissue burns.

[0113] Achieve a design that is both efficient and cost-effective: The electromagnetic heating unit 2 of the continuous heating and flushing device is reusable and features a modular replacement structure: a detachable and disposable liquid-carrying container 13, a hollow metal tube 21, a first liquid tube 1, a second liquid tube 3, a third liquid tube 4, and a recovery container 41. During use, only the disposable consumables of the liquid-carrying container 13, the hollow metal tube 21, the first liquid tube 1, the second liquid tube 3, the third liquid tube 4, and the recovery container 41 need to be replaced. This enables the continuous heating and flushing device to achieve reliable medical hygiene and infection control, significantly reducing its cost. Compared to existing technologies that rely on a complete replacement set or a separate set of constant temperature flushing devices for each patient (costing ≥ 2,000 yuan), the continuous heating and flushing device of the present invention can reduce the cost per use (to less than 200 yuan).

[0114] At the same time, it supports long-term, high-load, constant temperature and constant pressure operation for more than 8 hours, breaking through the short-term flushing bottleneck of traditional devices caused by short heating element life or flushing solution loading capacity or heating capacity limitations.

[0115] Achieve scalability of clinical application scenarios: The intracavitary detection unit can be independently or integratedly arranged in the second liquid tube 3 and the third liquid tube 4 to adapt to the flushing needs of different body cavity 9 structures such as the abdominal cavity, thoracic cavity, and joint cavity. For example, the continuous heating flushing device of the present invention is applied to nasal irrigation, and the combination of a miniaturized liquid tube and a high-sensitivity pressure sensor can avoid damage to the nasal mucosa; when applied to peritoneal lavage, through a large-capacity liquid-carrying container 13 or directly replacing a new liquid-carrying container 13 filled with liquid medicine (capacity ≥ 5L), and through the rapid heating characteristics of the liquid medicine of the electromagnetic heating unit 2 in the metal hollow tube 21, it can meet the requirements of rapid processing and large-flow continuous flushing in emergency surgery; compared with traditional constant temperature flushing devices with single functions, the versatility and scene adaptability of the continuous heating flushing device of the present invention are significantly improved.

[0116] As one optional implementation method:

[0117] Figure 1 It is a structural schematic diagram of the continuous heating and flushing device of the present invention.

[0118] Regarding the specific configuration and function of the flow rate unit 12, this embodiment Figure 1 As shown, the flow rate unit 12 includes a flushing flow rate control component and a flushing flow rate monitoring component, which are respectively used to monitor and control the flow rate of the liquid delivered from the first liquid pipe 1 to the metal hollow tube 21.

[0119] During use, the flushing flow rate control component receives real-time instructions from the controller via an electric clamp or a flow regulator driven by a stepper motor, dynamically adjusting the liquid flow rate in first liquid tube 1. For example, if the controller determines that the flushing flow rate needs to be reduced based on intracavitary pressure data, the electric clamp can clamp the first liquid tube 1 from the outside within 0.1 seconds, narrowing the internal passage of first liquid tube 1 and linearly reducing the flow rate from 500 ml / min to 400 ml / min. This prevents excessive fluctuations in pressure or temperature of the flushing fluid within body cavity 9 caused by sudden changes in flow rate.

[0120] Other functions and effects:

[0121] (1) Accurate flow rate matching: Through closed-loop control, flow rate monitoring - controller - algorithm calculation - electric clamp adjusts the channel size in the first liquid tube 1 to ensure that the error between the actual flow rate and the set value is ≤±5%, solving the flow rate deviation problem caused by traditional gravity infusion or air bag pressurization (usually the deviation is ≥±20%).

[0122] (2) Dynamic pressure balance: During the flushing process, if the intracavitary pressure measuring unit 6 detects that the pressure exceeds the threshold (such as the intracavitary pressure reaches 1 kPa), the controller can link the flushing flow rate control component of the flow rate unit 12 to reduce the flow rate of the liquid medicine in the first liquid tube 1, thereby reducing the flushing flow rate of the liquid medicine input into the body cavity 9 through the second liquid tube 3, and simultaneously increase the liquid recovery flow rate in the body cavity 9 of the recovery flow rate control component of the recovery volume control unit 42 to prevent damage to the tissue of the body cavity 9.

[0123] Compared with the existing technology, the advantages of the present invention are: compared with the existing flushing device that relies on manual knob adjustment or mechanical flow limiting valve to adjust the flow rate, its flow rate adjustment response time is ≥5 seconds, and the flow rate adjustment response is slow. The technical solution of the present invention can achieve millisecond-level dynamic response without interrupting the flushing process, significantly improving the continuity of flushing treatment in the body cavity 9.

[0124] Figure 1 It is a structural schematic diagram of the continuous heating and flushing device of the present invention.

[0125] Regarding the specific configuration and function of the recovery amount control unit 42, this embodiment is as follows: Figure 1 As shown, the recovery volume control unit 42 includes a recovery flow rate control component and a recovery flow rate monitoring component, which are respectively used to monitor and control the liquid recovery flow rate of the third liquid pipe 4 in the body cavity 9 to transport the liquid to the recovery container 41.

[0126] During use, the recovery flow rate control component can utilize a negative pressure pump linked to a pressure sensor, while the recovery flow rate monitoring component can utilize a non-contact flow meter. The controller automatically adjusts the negative pressure pump power based on real-time data from the intracavitary fluid volume measurement unit 7 and the intracavitary pressure measurement unit 6 (e.g., a fluid volume error of ±10 ml and a pressure error of 0.1 kPa) and a preset recovery ratio (e.g., a 1:0.95 ratio of the second liquid pipe 3 outputting the fluid to the body cavity 9 for irrigation and the third liquid pipe 4 recovering the fluid within the body cavity 9). For example, when the irrigation flow rate is 500 ml / min, the recovery flow rate is automatically adjusted to 475 ml / min, ensuring that the fluid retention in the body cavity 9 remains within a safe range.

[0127] Other functions and effects:

[0128] (1) Preventing the retention and excessive amount of liquid in the body cavity 9: By precisely controlling the recovery flow rate, the risk of liquid residue (which can easily cause infection) or excessive suction (which can lead to tissue dehydration) caused by the inefficient recovery of liquid in the body cavity 9 by conventional devices can be avoided;

[0129] (2) Adaptive cavity morphology: When the body cavity 9 expands due to flushing (such as peritoneal lavage), the recovery flow rate monitoring component can detect the change in recovery flow in real time, dynamically adjust the suction power of the negative pressure pump, and compensate for the recovery resistance fluctuation caused by the volume change of the body cavity 9.

[0130] Compared with existing technologies, the advantages of the present invention are as follows: existing heated irrigation devices often use fixed negative pressure or manually adjusted recovery (such as knob-type negative pressure valves), requiring frequent intervention by medical staff and prone to recovery delays (≥30 seconds). The continuous heated irrigation device of the present invention automatically matches the ratio of recovery flow rate to irrigation flow rate through closed-loop sensing and control of the measurement unit, controller, flow rate unit 12, and recovery volume control unit 42, with an error control within ±3%. This improves the operational efficiency of heated irrigation therapy by over 80%.

[0131] Regarding the role of the above-mentioned controller in the continuous heating and flushing device, the controller is used to receive the data of the set liquid target flow rate and liquid target temperature, and control: before running the heating and flushing, the capacity detection unit 8 reads the liquid volume data in the liquid carrier 13 and the temperature data of the liquid before heating measured by the front temperature measuring point 11, and uses the algorithm to calculate the heating power required by the electromagnetic heating unit 2 to heat the flowing liquid to the liquid target temperature; after running the heating and flushing, the post-heating temperature feedback mechanism composed of the rear temperature measuring point 31 and the intracavity temperature measuring unit 5 is used to monitor the heating effect of the liquid; and then according to The liquid is heated up, and the actual heating power of the metal hollow tube 21 on the liquid flowing through it is calculated by the algorithm. The heating power that needs to be adjusted by the electromagnetic heating unit 2 is calculated by the algorithm, and finally the liquid is quickly heated to the set target temperature. At the same time, the real-time pressure and liquid volume in the body cavity 9 are monitored by the intracavitary pressure measuring unit 6 and the intracavitary liquid volume measuring unit 7; during the operation of heating and flushing, the data calculated by the algorithm are used to control the flushing flow rate control component and the recovery flow rate control component to control the flushing flow rate and the recovery flow rate of the liquid in the body cavity 9, thereby controlling the flushing effect in the body cavity 9.

[0132] During application, the controller predicts the time when the remaining liquid volume will be exhausted through an algorithm based on the real-time data of the capacity detection unit 8 that detects the liquid-carrying container 13 (such as the remaining liquid volume of 2.3L) and the flushing flow rate controlled by the flow rate unit 12 (500ml / min). For example, if the remaining liquid volume is 2.3L / 0.5L per minute, it is found that flushing can still be continued for 4.6 minutes, and an "insufficient remaining liquid volume" warning is issued to the operation interface 1 minute before the remaining liquid is exhausted. At the same time, a deceleration program is started (such as the flow rate is reduced to 300ml / min) to reserve operation time for replacing the liquid-carrying container 13, thereby avoiding interruption of flushing treatment due to insufficient remaining liquid or failure to replace or replenish the liquid in time, and reducing the impact on the flushing treatment effect.

[0133] Other functions and effects:

[0134] (1) Intelligent early warning and seamless connection: By predicting the time when the liquid volume is exhausted, the problem of flushing suspension caused by sudden liquid shortage in traditional heated flushing devices is solved (re-airing and temperature calibration are required), ensuring the continuity of continuous heated flushing treatment of the body cavity 9;

[0135] (2) Dynamic power compensation: When the liquid level in the liquid-carrying container 13 drops, causing the pressure at the inlet of the first liquid pipe 1 to change, the controller automatically adjusts the heating power of the electromagnetic heating unit 2 (e.g., from 1000W to 900W) to offset the effect of the change in flow rate stability on the temperature, maintain the constant temperature of the liquid, and keep the temperature control accuracy within ±0.5°C.

[0136] Compared with the existing technology advantages: the existing heating and flushing devices usually only have simple liquid volume alarms (such as indicator light prompts), and cannot predict the exhaustion time or adjust the flow rate in a linked manner; the continuous heating and flushing device of the present invention uses the calculation algorithm stored on the controller to integrate multiple feedback parameters such as liquid volume, flow rate, heating power, etc. to achieve full-process automated management, and shorten the downtime of the continuous heating and flushing device caused by liquid exhaustion and untimely replacement of the liquid-carrying container 13 from 3-5 minutes of the simple liquid volume alarm of the traditional heating and flushing device and the manual addition of liquid to less than 30 seconds, thereby realizing timely reminders of liquid exhaustion pre-tightening and reminders of the need to replace the liquid-carrying container 13 or add liquid to the liquid-carrying container 13.

[0137] In some embodiments, when the controller is running a heated flush, the capacity detection unit 8 measures the amount of liquid to be heated and the amount of liquid recovered in the liquid-carrying container 13 and the recovery container 41 respectively, and directly obtains the remaining liquid amount and the calculated remaining recovery capacity. Combined with the flow rate of the liquid to be heated monitored by the flushing flow rate monitoring component and the liquid recovery flow rate monitored by the recovery flow rate monitoring component, the algorithm calculates the time when the remaining liquid amount in the liquid-carrying container 13 is used up and the time when the remaining recovery capacity of the recovery container 41 is used up, and the controller sends out data containing warnings in advance.

[0138] In the application, when the temperature measurement unit 5 in the cavity detects an abnormal temperature, for example, when the set temperature is 37°C but the actual temperature is 38.5°C, the controller immediately executes the three-level response:

[0139] 1. First-level response, reaction time controlled within 0.1 seconds: cut off the power supply of electromagnetic heating unit 2 and stop heating;

[0140] 2. Secondary response, with a reaction time of less than 0.5 seconds: Activate the rapid cooling module for the flushing liquid. For example, set a cooling bypass in the second liquid pipe 3, install a cooling pipe in the cooling bypass, and inject 25°C saline into the cooling pipe. This allows the newly injected saline with a lower temperature to enter the body cavity 9 through the second liquid pipe 3, thereby timely controlling the temperature in the body cavity 9.

[0141] 3. Level 3 response, reaction time controlled within 1 second: The controller triggers an audible and visual alarm and records event data, including the heated temperature of the flushing solution, the flushing flow rate, the flushing pressure, the temperature and pressure in the body cavity 9, the recovery flow rate and pressure, etc.

[0142] Other functions and effects:

[0143] (1) Multi-level safety protection: The controller performs closed-loop control over the electromagnetic heating unit 2, the flow rate unit 12, and the recovery volume control unit 42, and forms a hierarchical response mechanism, which can suppress the risk of temperature runaway of the liquid medicine at the budding stage and timely adjust the temperature in the body cavity 9. Compared with the existing heating and flushing device with only a single power-off protection scheme (response time ≥ 1 second), the safety is greatly improved;

[0144] (2) Data traceability and optimization: The controller records the data of abnormal events (such as temperature fluctuation curves and operation stage marks). The recorded abnormal event data can be exported and analyzed later to optimize the temperature control and heating algorithm of the drug solution or the clinical operation specifications of heating, flushing and refrigeration.

[0145] Compared with the existing technical advantages: Traditional heating and flushing devices rely on medical staff to observe the temperature display with the naked eye, and then manually intervene after discovering abnormal temperatures. It takes an average of 5-8 seconds from discovering the abnormality to taking measures. However, this solution uses fully automatic closed-loop control to reduce the risk of the body cavity 9 rising above the preset temperature due to the input of the liquid medicine into the body cavity 9 to less than 1 second, eliminating the medical risk of burns caused by abnormal temperature rise during the heating and flushing treatment.

[0146] Figure 1 It is a structural schematic diagram of the continuous heating and flushing device of the present invention.

[0147] The second embodiment of the continuous heating flushing device is as follows Figure 1 As shown, the difference between this embodiment and the first embodiment is that in order to fundamentally overcome the shortcomings of the traditional heated flushing device relying on manual estimation of liquid volume (the manual estimation of liquid volume generally has a large error, even reaching ±500ml, due to the lack of pre-test flow rate and flow rate) and the inability to predict the timing of interruption of heated flushing, the accuracy of liquid volume management is improved, thereby increasing the fault tolerance of clinical operations.

[0148] In order to solve this problem, the capacity detection unit 8 includes a first capacity sensor 81 and a second capacity sensor 82, wherein the first capacity sensor 81 is arranged in the liquid-carrying container 13, so that the first capacity sensor 81 is used to monitor the amount of liquid to be heated in the liquid-carrying container 13, so that the controller algorithm can calculate how long the flushing can last; the second capacity sensor 82 is arranged in the recovery container 41, and is used to monitor the amount of recovered liquid in the recovery container 41, so that the controller can collect the initial capacity of the recovery container 41 and use the algorithm to calculate how much liquid can be continuously recovered or how long the flushing can last.

[0149] During use, the first capacity sensor 81 (e.g., a high-precision ultrasonic level gauge) monitors the remaining liquid volume in the liquid container 13 in real time (with an accuracy of ±10 ml) and synchronizes this data with the controller. The controller, based on the current flushing flow rate (e.g., 500 ml / min) and the target flushing volume (e.g., 4 liters), dynamically calculates the remaining available time through an algorithm (e.g., if 2 liters remain, remaining time = 2 liters / 0.5 liters / min = 4 minutes). This remaining available time is visually displayed on the display screen and triggers an alert when the liquid is about to run out (e.g., 5% remaining).

[0150] At the same time, a second capacity sensor 82 (e.g., a gravity-sensing weighing module) monitors the amount of recovered liquid in the recovery container 41. Combining the initial capacity (e.g., the maximum capacity of the recovery container 41 is 5L) and the real-time recovery flow rate (e.g., 475ml / min), it calculates the remaining recoverable capacity (e.g., if 3L has been recovered, the remaining recoverable capacity = 5L - 3L = 2L) and predicts the recovery time to full capacity (e.g., 2L / 0.475L / min ≈ 4.2 minutes). When the recovery capacity approaches the upper limit (e.g., ≥90%), the controller automatically reduces the flushing flow rate (e.g., from 500ml / min to 300ml / min) and the recovery flow rate (e.g., from 475ml / min to 275ml / min) to prevent liquid overflow.

[0151] Its role and effect:

[0152] (1) Double-end capacity linkage control: Through the two-way data synchronization between the liquid-carrying container 13 and the recovery container 41, a dynamic balance between the flushing and recovery flow rates is achieved, avoiding the imbalance problem of "flushing without recovery" or "recovery without flushing" caused by single liquid volume monitoring; or even only detecting the liquid volume in the body cavity 9, resulting in blind operation of the flushing flow rate, liquid volume and recovery flow rate and liquid volume, which is risky and requires experienced medical personnel to operate.

[0153] (2) Intelligent resource management: During emergency surgery, if the remaining liquid volume in the liquid-carrying container 13 only supports 2 minutes of flushing, while the recovery capacity can receive another 3 minutes of liquid, the controller will automatically match the two limit values, alarm in advance and reduce the flushing volume, reserving operation time for replacing the liquid-carrying container 13 and the recovery container 41, thereby preventing treatment interruption due to unilateral capacity exhaustion.

[0154] Figure 1 It is a structural schematic diagram of the continuous heating and flushing device of the present invention; Figure 3 It is a schematic diagram of the heating principle of the heating device of the present invention.

[0155] The third embodiment of the continuous heating flushing device is as follows Figure 1 As shown, the difference between this embodiment and the first embodiment is that in order to break through the technical bottleneck of short life and slow temperature rise of traditional heating tubes due to material limitations, while satisfying the requirements of heating the flowing liquid through electromagnetic effect and improving the heat exchange efficiency through changes in geometric structure; the specific setting of the metal hollow tube 21: the metal hollow tube 21 is a stainless steel hollow tube.

[0156] Specifically, in order to increase the heating time of the liquid medicine, the metal hollow tube 21 is vortex-shaped.

[0157] In some embodiments, the metal hollow tube 21 is shaped as a coil with multiple turns, which is used to increase the length of the metal hollow tube 21, extend the path of the medicine flowing through the metal hollow tube 21, and cooperate with the heating of the electromagnetic heating unit 2 to allow the medicine to absorb more heat during the movement, which helps to improve the heating efficiency.

[0158] In application, the material of the metal hollow tube 21 is actually not limited to a stainless steel hollow tube, that is, the metal hollow tube 21 can be made of any conductive material that can generate heat by utilizing electromagnetic effect to heat the liquid medicine.

[0159] For example, the metal hollow tube 21 can be made of a copper tube or an aluminum tube, but it needs to avoid direct corrosion or be used only once.

[0160] A stainless steel hollow tube is coiled into a spiral shape (e.g., 5 cm in diameter, 10 turns in total), so that the flow path of the liquid medicine is extended from 30 cm in a straight tube state to 2-3 m. When the electromagnetic heating unit 2 excites the stainless steel tube with a 20 kHz high-frequency current to generate eddy currents, the residence time of the liquid medicine initially entering the coil can be increased from 0.5 seconds to 5 seconds. Combined with the tube wall of the stainless steel hollow tube completely surrounding and contacting the liquid medicine and continuously releasing heat, rapid temperature rise is achieved (e.g., heating from 25°C to 37°C takes only 10 seconds).

[0161] In addition, stainless steel's high thermal conductivity (thermal conductivity reaches 16.2W / m·K) and corrosion resistance (tolerance to pH 2-12 liquids) can prevent copper or aluminum pipes from oxidizing and contaminating the liquid after long-term use, or even causing pipe damage and leakage.

[0162] Its role and effect:

[0163] (1) Doubled heating efficiency: The coil design increases the temperature rise of the liquid flowing through it from 5°C in straight pipes to 20°C by extending the heating contact time and expanding the heat exchange area. The heating efficiency is increased by 400% compared to the traditional straight pipe solution.

[0164] (2) Optimization of material compatibility: Stainless steel can withstand high-temperature and high-pressure steam sterilization (135°C / 0.3MPa) and can be reused more than 1,000 times. Compared with the disposable heating tube of the traditional solution (single cost > 30 yuan), the reuse cost of this embodiment can be reduced to 0.03 yuan / time.

[0165] Regarding the heating principle of the electromagnetic heating unit 2 and the metal hollow tube 21 , the combination of the electromagnetic heating unit 2 and the metal hollow tube 21 becomes a heater of the continuous heating and flushing device.

[0166] The heating principle of the heater is as follows: Figure 3 As shown: at the beginning, the metal hollow tube 21 is placed on the addition panel of the electromagnetic heating unit 2, so that the electromagnetic coil of the electromagnetic heating unit 2 faces the metal hollow tube 21; at this time, the electromagnetic heating unit 2 is input with alternating current, and at the same time, the switching power supply circuit, the driving and protection circuit, the rectifier filter, and the switching tube are operated, so that the resonant circuit generates high-frequency current and transmits it to the induction coil. High-frequency alternating current flows through the inside of the induction coil, and a closed circular current is formed inside the metal hollow tube 21; at the same time, liquid enters the metal hollow tube 21, and the metal hollow tube 21 generates heat due to resistance. The liquid flowing surrounded by the inner wall of the tube is quickly heated, and then the liquid is discharged.

[0167] The fourth embodiment of the continuous heating and flushing device is different from the first embodiment in that in order to eliminate the defect that a single temperature measurement point (such as only monitoring the temperature after heating) cannot trace the root cause of the attenuation of heating efficiency, a leapfrog upgrade from "result control" to "process optimization" is achieved.

[0168] Regarding the specific settings of the front temperature measuring point 11 and the rear temperature measuring point 31 , the front temperature measuring point 11 is installed with a front temperature measuring sensor; and the rear temperature measuring point 31 is installed with a rear temperature measuring sensor.

[0169] Specifically, the front temperature sensor and the rear temperature sensor may be contact temperature sensors or non-contact temperature sensors.

[0170] During application, the front temperature sensor (such as a PT1000 platinum resistance sensor) and the rear temperature sensor (such as an infrared non-contact thermometer) respectively collect the temperature data of the pre-heating liquid and the post-heating liquid in real time (with an accuracy of ±0.1°C), and transmit the two sets of temperature data to the controller.

[0171] The controller compares the temperature difference between the two (e.g., 20°C before heating to 40°C after heating) and combines it with the current flow rate (500ml / min) to dynamically calculate the actual heating power (e.g., in actual heating, 1.2kW of power is required for a temperature difference of 20°C). It then compares this with the theoretical value (e.g., 1.5kW of power is required for a temperature difference of 20°C in theoretical heating calculations) and automatically calibrates the output frequency of the electromagnetic heating unit 2 (e.g., from 20kHz to 22kHz) to compensate for energy efficiency degradation caused by pipe wall fouling or power supply fluctuations.

[0172] Its role and effect:

[0173] (1) Bidirectional temperature difference closed-loop control: The front temperature sensor and the rear temperature sensor form a real-time feedback loop for heating efficiency. When the actual temperature rise is detected to be lower than expected (for example, the temperature difference is 15°C instead of 20°C), the controller increases the heating power of the electromagnetic heating unit 2 by 10% within 1 second to ensure the stability of the constant temperature output of the liquid medicine in the second liquid pipe 3 (the temperature error of the constant temperature output of the liquid medicine is controlled within ±0.5°C);

[0174] (2) Fault prediction and maintenance prompts: If the controller requires power compensation > 15% for three consecutive temperature calibrations, the controller will automatically determine that the metal hollow tube 21 is scaled or aged, triggering a "maintenance warning" and giving a prompt on the display screen to avoid the traditional heated flushing device from causing a decrease in the efficiency and effect of heated flushing treatment due to hidden performance degradation, thereby preventing possible medical risks.

[0175] The fifth embodiment of the continuous heating flushing device is different from the first embodiment in that, in order to eliminate the risk of cross infection caused by backflow in reusable pipelines, a breakthrough is made in the technical bottleneck that the traditional anti-backflow structure is incompatible with high-temperature disinfection and low-cost maintenance, thereby achieving the dual goals of "surgical-grade sterility standards" and "consumable-level usage costs" of the continuous heating flushing device in the reuse scenario.

[0176] Since the second and third liquid pipes need to be inserted into the body cavity, they need to be disposable pipes, while the first liquid pipe and the metal hollow pipe do not need to be inserted into the body cavity, so these two pipes can be selected as disposable pipes or reusable pipes according to the specific usage mode.

[0177] Specifically, the first liquid tube and the metal hollow tube are disposable tubes or reusable tubes.

[0178] In some embodiments, when the first liquid pipe and the metal hollow pipe are reusable pipes, an anti-reverse unit is installed on the second liquid pipe.

[0179] In some embodiments, the anti-reverse unit is a single anti-reverse valve, or a combination of multiple anti-reverse valves and disposable connectors.

[0180] During application, when the first liquid pipe and the metal hollow pipe are used as circulating and reusable pipes, the anti-reverse unit on the second liquid pipe ensures the one-way flow of the liquid through an anti-reverse valve or a combination of "anti-reverse valve + disposable connector".

[0181] For example, in a peritoneal lavage scenario, if the fluid reverses flow due to pressure fluctuations in the body cavity, the anti-return valve (which can be a duckbill valve or a spring-loaded one-way valve when applicable) can be immediately closed to block the reverse flow path; if the patient needs to be changed or the surgical site needs to be switched, the second liquid tube can be removed from the metal hollow tube, and the second liquid tube, disposable connector (such as the Luer connector sealing cap) and the anti-return valve body can be replaced together to achieve sterile switching of rapid reuse pipelines.

[0182] Its role and effect:

[0183] (1) Blocking the risk of cross-contamination: The anti-return valve provides active protection. When the flushing pressure is abnormal (such as a sudden increase in intrathoracic pressure caused by a patient's cough), the anti-return valve can respond and lock within 50ms to prevent body fluids containing pathogens from flowing back into the metal hollow tube and liquid-carrying container, thereby avoiding pipeline contamination. Compared with traditional reusable devices, the safety is improved.

[0184] Disposable connectors are used for isolation. When changing patients or using the same patient multiple times, only the second liquid tube, disposable connector and anti-return valve need to be discarded. This reduces consumables costs (saving 90% compared to a full-pipeline disposable design) and ensures absolute isolation between different patients, solving the risk of hospital-acquired infections caused by incomplete cleaning of existing reusable devices.

[0185] (2) Compatible with reuse and efficient maintenance: Modular cleaning design, the metal hollow tube and the second liquid tube adopt a quick-release structure with interference fit. After surgery, the metal hollow tube can be separated from the second liquid tube, and the metal hollow tube can be retained and placed in a high-temperature disinfection cabinet (135°C) for disinfection, avoiding the cleaning dead corners caused by the complex structure of traditional integrated pipelines (such as residual liquid crystals at the threaded interface).

[0186] Compared with the prior art, the advantages of this embodiment are:

[0187] Since traditional reusable flushing devices are usually not equipped with dedicated anti-return units, or only use simple check valves (such as silicone membrane valves), their temperature resistance and sealing are poor, and the connecting parts cannot be quickly replaced, the reuse cost is high and the risk is great.

[0188] This embodiment combines safety and economy through the combination of "second liquid pipe, anti-return valve + disposable connector": the anti-return valve is made of medical-grade PEEK material, which can withstand high temperatures of >200°C and highly corrosive liquid medicines; the second liquid pipe and disposable connector adopt a quick-release structure, and the replacement operation time is less than 10 seconds, and no special tools are required. It is significantly superior to the overall replacement of the pipeline required by traditional solutions in terms of cost and replacement time.

[0189] Based on the above embodiment of the continuous heating and flushing device, a control component is provided, including a control unit and the above-mentioned continuous heating and flushing device. The control unit is electrically connected to the controller for human-computer interaction control. When the continuous heating and flushing device is in operation, data is sent to the controller or data is received from the controller.

[0190] As one optional implementation method:

[0191] In some embodiments, the control unit includes an input module and a display module; the input module is used to input and send data to the controller; the display module is used to receive and display data sent back by the controller.

[0192] During application, the control unit is a touch screen display that integrates an input module and a display module; this means that the control unit can be a touch screen display that integrates the input function of the input module and the display function of the display module.

[0193] Based on the above embodiment of the continuous heating and flushing device, a warning component is provided, including a warning unit and the above continuous heating and flushing device.

[0194] When in use, the warning unit is electrically connected to the controller to receive warning data sent by the controller and convert it into sound and light for warning reminders.

[0195] Figure 2 It is a schematic diagram of the control principle of the control method of the continuous heating and flushing device of the present invention.

[0196] Based on the above embodiment of the continuous heating and flushing device, a control method is provided, including the above continuous heating and flushing device and the following control steps, such as Figure 2 As shown:

[0197] S1, start;

[0198] S2, equipment initialization check;

[0199] S3, determine whether the equipment self-test has passed; if yes, proceed to step S4; if not, record the abnormality and suspend the use of the continuous heating and flushing device;

[0200] S4: After the controller receives the set operating data and reads the real-time operating data, it enters step S5;

[0201] S4.1. Set the flow rate, target temperature, perfusion volume, and operating time of the continuous heating and flushing device;

[0202] S4.2. The controller reads and records the real-time temperature, capacity, flow rate, perfusion volume, pressure, and time data;

[0203] S5, continuous heating and flushing device operation;

[0204] S5.1. The liquid begins to flow along the pipe;

[0205] S5.2. The electromagnetic heating unit starts to work and heats the liquid;

[0206] S5.3, liquid temperature control;

[0207] S6. Determine whether the liquid temperature control is normal; if yes, proceed to step S7; if no, return to step S5.2 to adjust the heating power of the electromagnetic heating unit;

[0208] S7, fluid flows into the body cavity;

[0209] Determine whether the body cavity pressure is normal; if so, continue to flow the liquid into the body cavity; if not, stop the liquid flow;

[0210] S8, executed simultaneously with step S7, the liquid flows out of the body cavity;

[0211] S9, liquid collection;

[0212] Body cavity perfusion volume control; determine whether the amount of liquid in the body cavity is sufficient; if yes, continue to step S8; if not, return to execute body cavity perfusion volume control;

[0213] Executed simultaneously with the body cavity perfusion volume control, the heated liquid volume and treatment time are determined; if the liquid volume is determined to be sufficient or the heated irrigation treatment is not completed, execute step S4.2; if the liquid volume is determined to be insufficient or the heated irrigation treatment is completed, execute the liquid flow stop;

[0214] S10, the electromagnetic heating unit stops working;

[0215] S11, end.

[0216] Among them, such as Figure 4As shown, a three-way solenoid valve 32 can be added to the second liquid pipe 3 located between the rear temperature measuring point 31 and the body cavity 9, and a liquid discharge pipe 33 can be externally connected. In step S6, when it is determined that the liquid temperature is abnormal, the controller sends a liquid discharge electrical signal to the three-way solenoid valve 32, and the three-way solenoid valve 32 opens the channel connected to the liquid discharge pipe 33 and closes the channel for the liquid to enter the body cavity 9, so that the liquid with abnormal temperature is discharged to the outside of the body cavity, preventing the liquid with abnormal temperature (too high or too low temperature) from entering the body cavity and affecting the treatment effect, thereby avoiding treatment risks.

[0217] During application, the control method realizes the automated management of the entire process from device self-check to the termination of heated irrigation treatment through multi-level closed-loop feedback and intelligent decision-making mechanism. The core role and effect of applying this control method to the continuous heated irrigation device are as follows:

[0218] (1) Equipment initialization and self-test (S2-S3)

[0219] Hardware status prediction: During the initialization phase, the system automatically detects the impedance of the electromagnetic heating unit (normal range: 0.5-1.2Ω), the tightness of the liquid pipe (pressure maintenance test, maintaining pressure at 3kPa for 10 seconds to test the leakage rate), and the sensor calibration status (such as comparing the temperature data measured by the temperature sensor with the temperature data of the standard temperature source to obtain the deviation data and then determine the sensor's measurement error) to ensure hardware reliability.

[0220] Security access interception: If the self-inspection finds that the scaling coefficient of the metal hollow tube is greater than 15% (calculated by the heating power-temperature rise efficiency curve), or the response delay of the recovery control unit is greater than 0.5 seconds, a maintenance lock is triggered, the equipment is prohibited from starting, and a fault code is generated (such as E01: insufficient heating efficiency, E02: recovery response timeout).

[0221] (2) Dynamic matching of operating parameters (S4-S5.2)

[0222] Intelligent parameter preloading: The controller has multiple usage modes set through the data storage area. When the operator selects "Emergency High Flow Mode" on the display interface, the controller automatically increases the flow rate upper limit of the flow rate unit to the first liquid pipe to 800ml / min and simultaneously increases the power of the electromagnetic heating unit to 1500W, ensuring that the flowing liquid can be quickly heated from 20℃ to 40℃ within 5 seconds.

[0223] Real-time data fusion: After reading the temperature data of the front temperature sensor at the front temperature measurement point (such as 25°C), combined with the target temperature (45°C) and the real-time flow rate (500ml / min), the initial heating power of the electromagnetic heating unit (such as 1200W) is calculated through the PID algorithm, and the matching of the electromagnetic frequency (such as 22kHz) and the current intensity (such as 15A) is completed within 0.2 seconds.

[0224] Compared with traditional open-loop heating control (fixed power output), dynamic power matching reduces energy consumption in the heating stage by 35% and reduces the temperature fluctuation of the drug solution in the constant temperature stage by 70%. It also supports rapid response to emergency scenarios. For example, when massive abdominal bleeding requires emergency lavage, the system can switch to "emergency mode" within 3 seconds, achieving a flow rate of 1L / min and a temperature of 42°C for the output of heated drug solution or saline.

[0225] (3) Temperature-pressure dual closed-loop control (S5.3-S7)

[0226] Temperature anti-disturbance compensation: When the temperature sensor at the rear temperature measurement point detects that the actual temperature deviates from the target value by ≥0.3℃, the controller starts the anti-disturbance algorithm:

[0227] If it is a transient fluctuation (e.g., a temperature drop of 0.5°C due to air bubbles entering the metal tube), the heating power will be automatically increased by 10% and maintained for 3 seconds.

[0228] If there is a trend deviation (such as insufficient temperature rise for 5 consecutive seconds), the pipe wall fouling compensation factor is triggered (such as an additional 5% increase in power).

[0229] Adaptive pressure regulation: The intracavitary pressure measuring unit uploads pressure data every 0.1 seconds. When the pressure exceeds a threshold (e.g., 0.8 kPa), the controller will simultaneously execute the following actions: reduce the flushing flow rate (e.g., from 500 ml / min to 400 ml / min in steps); and increase the recovery flow rate (from 475 ml / min to 500 ml / min).

[0230] If the pressure exceeds the standard for more than 5 seconds, the emergency pressure relief program will be activated, and the recovery flow will be increased through the recovery volume control unit for emergency response; if the high pressure is still maintained, a prompt will be given through the screen or the warning unit will give an audible and visual warning to remind that manual intervention is required and emergency pressure relief will be carried out by inserting a suction tool.

[0231] (4) Coordinated management of perfusion volume and time (S8-S9)

[0232] Dynamic perfusion balance: The controller calculates the deviation between the theoretical perfusion volume (accumulated inflow volume - outflow volume) and the actual intracavitary fluid volume measurement every 2 seconds. When the deviation is greater than 50ml, the recovery flow rate is automatically corrected (for example, the recovery volume control unit is controlled to increase the recovery flow rate by 5%).

[0233] Intelligent early warning of remaining liquid volume: Based on the remaining liquid volume in the liquid-carrying container (e.g., 2L) and the current flow rate (500ml / min), the system accurately predicts the remaining available time (4 minutes) and initiates a "slow-down protocol" (the flow rate decreases by 50ml / min every 10 seconds) 1 minute before exhaustion, reserving an operating window for liquid replacement and avoiding treatment interruptions.

[0234] During prolonged surgery (such as abdominal abscess lavage lasting more than 3 hours), the error in fluid management was reduced from ±500ml of traditional manual estimation to ±50ml; through the dual threshold judgment of time and fluid volume, the unplanned downtime rate due to fluid depletion was reduced from 18% to 0.5%.

[0235] (5) Secure termination and data closure (S10-S11)

[0236] Gradient cooling protection: At the end of treatment, the controller maintains a flow rate of 200ml / min and gradually reduces the thermal power of the electromagnetic heating unit (from 1000W to 200W), so that the temperature of the residual liquid in the pipeline slowly drops from 40℃ to 35℃ to avoid burns.

[0237] By applying the above control method, the continuous heating and flushing device can achieve:

[0238] Full process automation: Breaking through the limitations of traditional heating and flushing devices that require manual staged control of heating, flushing flow rate, flushing volume, flushing pressure, recovery flow rate, and recovery volume, it achieves one-touch "set and go" operation.

[0239] Intelligent anti-interference capability: Through multi-sensor data fusion and adaptive algorithms, the temperature, irrigation volume, irrigation pressure and other parameters of heated irrigation therapy are maintained stable in complex clinical scenarios (such as patient movement and sudden changes in drug solution viscosity).

[0240] The technical features of the above embodiments may be combined arbitrarily. To simplify the description, not all possible combinations of the technical features in the above embodiments are described.

Claims

1. A device for continuously heating and flushing body fluids or inflammatory substances in a cavity, characterized in that: It includes a first liquid pipe, which is provided with a front temperature measuring point and a flow rate unit in sequence along the direction of liquid flow, and the two ends of the first liquid pipe are connected to a liquid carrying container for loading the liquid to be heated and a metal hollow tube; and an electromagnetic heating unit for heating the hollow metal tube by electromagnetic induction and heating the liquid flowing through the hollow metal tube; and a second liquid pipe, the second liquid pipe being connected to the metal hollow pipe and provided with a rear temperature measuring point along the direction of liquid flow; the end of the second liquid pipe extending into the body cavity to be flushed; and a third liquid tube, one end of which is placed in the body cavity to recover liquid, the other end of which is connected to a recovery container, and a recovery volume control unit is provided between the two ends; and an intracavity temperature measuring unit, an intracavity pressure measuring unit and an intracavity liquid volume measuring unit, wherein the intracavity temperature measuring unit, the intracavity pressure measuring unit and the intracavity liquid volume measuring unit are placed in the body cavity to detect temperature, pressure and liquid volume; The liquid carrying container and the recovery container are respectively provided with a capacity detection unit for detecting the real-time content of the container; and a controller, causing the second liquid pipe and the third liquid pipe to perform flushing in the body cavity at a constant temperature and pressure; The flow rate unit includes a flushing flow rate control component and a flushing flow rate monitoring component, wherein the flushing flow rate monitoring component and the flushing flow rate control component are respectively used to monitor and control the flow rate of the liquid transported from the first liquid pipe to the metal hollow tube; The recovery volume control unit includes a recovery flow rate control component and a recovery flow rate monitoring component, wherein the recovery flow rate control component and the recovery flow rate monitoring component are respectively used to monitor and control the liquid recovery flow rate of the third liquid pipe extracting liquid in the body cavity and transporting it to the recovery container; The controller is used to receive data on a set target liquid flow rate and a target liquid temperature, and to control: before running the heating flush, the capacity detection unit reads the liquid volume data in the liquid carrying container and the temperature data of the liquid before heating measured at the front temperature measurement point, and uses an algorithm to calculate the heating power required by the electromagnetic heating unit to heat the flowing liquid to the target liquid temperature; After the heating flush is performed, the post-heating temperature feedback mechanism composed of the post-temperature measurement point and the intracavitary temperature measurement unit is used to monitor the heating effect of the liquid; then, according to the liquid temperature rising state, the actual heating power of the metal hollow tube on the liquid flowing through is calculated by an algorithm, and the heating power that needs to be adjusted for the electromagnetic heating unit is calculated by the algorithm, and finally the liquid is quickly heated to the set target temperature. At the same time, the real-time pressure and liquid volume in the body cavity are monitored by the intracavitary pressure measurement unit and the intracavitary liquid volume measurement unit; During the operation of heated flushing, the data calculated by the algorithm is used to control the flushing flow rate control component and the recovery flow rate control component to control the flushing flow rate and the recovery flow rate of the liquid in the body cavity, thereby controlling the flushing effect in the body cavity.

2. The continuous heating and flushing device according to claim 1, characterized in that: The controller is electrically connected to the front temperature measuring point, the flow rate unit, the electromagnetic heating unit, the rear temperature measuring point, the intracavity temperature measuring unit, the intracavity pressure measuring unit, the intracavity liquid volume measuring unit, the recovery volume control unit and the capacity detection unit.

3. The continuous heating and flushing device according to claim 1, characterized in that: When the controller is running the heated flushing operation, the capacity detection unit measures the amount of liquid to be heated and the amount of liquid recovered in the liquid-carrying container and the recovery container respectively, and directly obtains the remaining liquid amount and the calculated remaining recovery capacity. Combined with the flow rate of the liquid to be heated monitored by the flushing flow rate monitoring component and the liquid recovery flow rate monitored by the recovery flow rate monitoring component, the algorithm is used to calculate the time when the remaining liquid amount in the liquid-carrying container is used up and the time when the remaining recovery capacity of the recovery container is used up, and the controller sends data containing warnings in advance.

4. The continuous heating and flushing device according to any one of claims 1 to 2, characterized in that: The shape of the metal hollow tube is a coil tube with multiple turns, and the metal hollow tube is a stainless steel hollow tube.

5. The continuous heating and flushing device according to claim 1, characterized in that: The front temperature measuring point is installed with a front temperature measuring sensor; the rear temperature measuring point is installed with a rear temperature measuring sensor.

6. The continuous heating and flushing device according to claim 1, characterized in that: The first liquid pipe and the metal hollow pipe are disposable pipes or reusable pipes.

7. The continuous heating and flushing device according to claim 5, characterized in that: When the first liquid pipe and the metal hollow pipe are reusable pipes, an anti-reverse unit is installed on the second liquid pipe.

8. The continuous heating and flushing device according to claim 7, characterized in that: The anti-reverse unit is a single anti-reverse valve, or a combination of multiple anti-reverse valves and disposable connectors.

9. A control component, characterized in that: It comprises a control unit and a continuous heating and flushing device according to any one of claims 1 to 7, wherein the control unit is electrically connected to the controller for performing human-computer interaction control of the continuous heating and flushing device, and sending data to the controller or receiving data returned by the controller when the continuous heating and flushing device is in operation.

10. The operating component according to claim 9, characterized in that: The control unit includes an input module and a display module; the input module is used to input and send data to the controller; the display module is used to receive and display the data sent back by the controller.

11. The control component according to claim 10, characterized in that: The control unit is a touch screen display that integrates the input module and the display module.

12. A warning component, characterized in that: It comprises a warning unit and a continuous heating and flushing device according to any one of claims 1 to 7, wherein the warning unit is electrically connected to the controller for receiving warning data sent by the controller and converting the warning data into sound and light for warning reminder.

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