Continuous heating and flushing device for body fluid or inflammations in cavity

Abstract

The invention discloses a continuous heating and flushing device for body fluid or inflammatory substances in a cavity, and relates to the technical field of medical instruments, the continuous heating and flushing device comprises an electromagnetic heating unit, a first liquid tube connected with 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 which extend into the cavity; the third liquid pipe is connected with the recovery container and is provided with a recovery amount control unit; closed-loop feedback is formed through cooperation of all measurement and control units and a controller, constant-temperature and constant-pressure output flushing is carried out on the interior of a body cavity after the temperature of liquid medicine is rapidly increased, and meanwhile the liquid amount in the body cavity is accurately controlled in the flushing process. Through cooperation of the flow rate unit and the recovery amount control unit, large-flow continuous flushing is supported, precise temperature control and pressure control inside and outside a body cavity are integrated, and the clinical operation safety and efficiency are remarkably improved; the technical problems that an existing heating flushing device is low in heating response speed, low in temperature and pressure control precision, small in flushing amount, short in flushing time and low in safety are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a continuous warming and flushing device for body fluid or inflammatory substances in a cavity. Background Art

[0002] With the progress of medical technology, the flushing treatment of body fluid or inflammatory substances in cavities (such as abdominal cavity, thoracic cavity, etc.) is increasingly widely used in clinical practice. Such treatment requires continuous flushing with constant-temperature medicinal liquid or physiological saline to achieve the purpose of removing lesions and promoting healing. However, the medical devices used for such treatment in the prior art have significant limitations, making it difficult to meet the clinical requirements in terms of treatment effect and operation efficiency.

[0003] Development status of the prior art: Regarding the control of temperature and flow rate: Most common warm treatment devices on the market (such as ordinary heating flushing devices) use simple heating modules (such as resistance wire heating plates or external hot water circulation) to increase the temperature of medicinal liquid or physiological saline. For example: Heating the medicinal liquid or physiological saline through a kettle body with heat preservation function combined with a heating base, and then outputting for use. However, this process cannot achieve rapid heating, and limited by the capacity of the kettle body, it is difficult to support the continuous output of a large amount of flushing liquid. In addition, although some flushing devices are equipped with temperature sensors, the contact area between their heating layer and the liquid is limited, resulting in insufficient temperature control accuracy, with the risk of scalding or large temperature fluctuations occurring as the flow rate of the flushing medicinal liquid changes.

[0004] Regarding the control of pressure: The pressure control of existing warm treatment flushing devices often relies on manual pressurization (such as air inflation bags or foot-operated pressurization) or gravity infusion methods, which are not only cumbersome to operate but also have poor pressure stability, making it difficult to meet the continuous constant pressure requirements for cavity flushing. For example, some warming and pressurizing flushing devices achieve pressurization by squeezing the flushing liquid bag with an airbag, but it is necessary to frequently adjust the throttle nut to adjust the air pressure output size or replace the pressurizing components, increasing the operation complexity.

[0005] Regarding the control of safety and cost: Some surgical flushing liquid warming devices (such as disposable surgical flushing liquid warming devices) can achieve constant temperature control, but their structures are complex and rely on disposable consumables, resulting in high usage costs. In addition, there is a lack of real-time safety monitoring modules, such as modules for detecting temperature, alarming when exceeding the limit, or feeding back and adaptively adjusting the flushing pressure; in the absence of these safety monitoring modules, it may lead to medical risks caused by out-of-control temperature or abnormal pressure of the warming and flushing device.

[0006] Current problems in the prior art are specifically as follows: 1. The existing warming and rinsing device has insufficient temperature control, unable to achieve rapid heating of the liquid medicine and continuous constant-temperature output. Moreover, the coordination between the temperature sensor and the heating module is poor, easily leading to large temperature fluctuations or local overheating of the heated content liquid (liquid medicine or physiological saline), resulting in potential scalding risks.

[0007] 2. The existing warming and rinsing device has poor continuous warming performance. Due to limitations in warming performance and the limited capacity of the container storing the liquid medicine, it is unable to continuously heat a large amount of heated content liquid (liquid medicine or physiological saline), and the heating amount is limited. For surgeries or scenarios that require continuous rinsing for a long time (more than 20 hours), its continuous warming and rinsing performance is insufficient, affecting the treatment effect of the treatment course that requires long-term rinsing.

[0008] 3. The existing warming and rinsing device has poor pressure stability. The warming and rinsing device relies on manual pressurization or a simple mechanical pressurization structure, making it difficult to maintain a constant rinsing pressure for the output liquid, affecting the effect of rinsing treatment.

[0009] 4. The existing warming and rinsing device is complex and inefficient to operate. The warming and rinsing device needs to frequently adjust the output pressure or replace the pressurizing components, increasing the operation burden on medical staff. Especially in emergency scenarios, its rapid response performance is significantly insufficient.

[0010] 5. The existing warming and rinsing device lacks a safety monitoring mechanism. Most warming and rinsing devices lack real-time temperature and pressure abnormal alarm functions, presenting potential medical risks.

[0011] 6. The existing warming and rinsing device has high usage costs. Some high-precision constant-temperature devices rely on complex structures or disposable consumables, restricting their clinical popularization.

[0012] The above problems seriously restrict the effectiveness and safety of the rinsing treatment method for the cavity. There is an urgent need for a warming and rinsing device that can integrate rapid heating, constant-temperature and constant-pressure output, intelligent monitoring, and low cost to meet the clinical needs of rapid heating response, precise temperature control, large-volume rinsing, long-term rinsing, precise pressure control, and safety and reliability of the existing rinsing treatment method.

[0013] In summary, it is found that the existing technology has at least the following technical problems: The existing warming and rinsing device has technical problems such as slow heating response speed, low temperature and pressure control accuracy, small rinsing volume, short rinsing time, and low safety. Summary of the Invention

[0014] The object of the present invention is to provide a continuous warming and flushing device for body fluids or inflammatory substances in a cavity, so as to solve the technical problems existing in the existing warming and flushing devices, such as slow heating response speed, low temperature and pressure control accuracy, small flushing volume, short flushing time and low safety.

[0015] The preferred technical solutions among the many technical solutions provided by the present invention and the many technical effects that can be produced are described in detail below.

[0016] In order to solve the above technical problems, the present invention provides the following technical solutions: The present invention provides a continuous warming and flushing device for body fluids or inflammatory substances in a cavity, including a first liquid pipe, with a front temperature measurement point and a flow rate unit arranged in sequence along the liquid flow direction. 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 pipe; and an electromagnetic heating unit that uses electromagnetic induction to heat the metal hollow pipe and heat the liquid flowing through the metal hollow pipe; and a second liquid pipe, which is connected to the metal hollow pipe and has a rear temperature measurement point arranged along the liquid flow direction; 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 the liquid, the other end of the third liquid pipe is connected to a recovery container, and a recovery volume control unit is arranged between the two ends; and a cavity temperature measurement unit, a cavity pressure measurement unit and a cavity liquid volume measurement unit, which 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 volume detection unit for detecting the real-time content of the container; and a controller electrically connected to the front temperature measurement point, the flow rate unit, the electromagnetic heating unit, the rear temperature measurement point, the cavity temperature measurement unit, the cavity pressure measurement unit, the cavity liquid volume measurement unit, the recovery volume control unit and the volume detection unit, so that the second liquid pipe and the third liquid pipe perform flushing in the body cavity in a constant temperature and constant pressure manner.

[0017] In one embodiment, the controller is electrically connected to the front temperature measurement point, the flow rate unit, the electromagnetic heating unit, the rear temperature measurement point, the cavity temperature measurement unit, the cavity pressure measurement unit, the cavity liquid volume measurement unit, the recovery volume control unit and the volume detection unit.

[0018] 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 liquid flow rate of the first liquid pipe leading to the metal hollow pipe.

[0019] In one embodiment, the recovery volume control unit includes a recovery flow rate control component and a recovery flow rate monitoring component. 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 for extracting liquid from the body cavity and transporting it to the recovery container.

[0020] In one embodiment, the controller is configured to receive data of a set target liquid flow rate and a target liquid temperature, and control: before running the warm flushing, reading the liquid volume data in the liquid carrier container through the volume detection unit and the temperature data of the liquid before heating through the front temperature measurement point, and calculating, using an algorithm, the heating power required for the electromagnetic heating unit to heat the flowing liquid to the target liquid temperature; after running the warm flushing, monitoring the heating effect of the liquid by using the post-heating temperature feedback mechanism formed by the post temperature measurement point and the in-cavity temperature measurement unit; then calculating, according to the liquid temperature rise state, the actual heating power of the metal hollow tube for the flowing liquid by using an algorithm, calculating the heating power that needs to be adjusted for the electromagnetic heating unit by using an algorithm, and finally quickly heating the liquid to the set target temperature. At the same time, monitoring the real-time pressure and liquid volume in the body cavity through the in-cavity pressure measurement unit and the in-cavity liquid volume measurement unit; during the running of the warm flushing, controlling the flushing flow rate control component and the recovery flow rate control component by using the data calculated by the algorithm to control the flushing flow rate and the recovery flow rate of the liquid in the body cavity, so as to control the flushing effect in the body cavity.

[0021] In one embodiment, during the running of the warm flushing, the controller measures the liquid volume to be heated and the recovered liquid volume of the liquid carrier container and the recovery container respectively through the volume detection unit, directly obtains the remaining liquid volume and the calculated remaining recovery volume, combines 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, calculates, through an algorithm, the time when the remaining liquid volume of the liquid carrier container is used up and the time when the remaining recovery volume of the recovery container is used up, and the controller issues a warning-containing data in advance.

[0022] In one embodiment, the shape of the metal hollow tube is a coiled tube with multiple coils, and the metal hollow tube is a stainless steel hollow tube.

[0023] In one embodiment, a front temperature sensor is installed at the front temperature measurement point; a post temperature sensor is installed at the post temperature measurement point.

[0024] In one embodiment, the first liquid pipe and the metal hollow tube are disposable pipes or reusable pipes.

[0025] In one embodiment, when the first liquid pipe and the metal hollow pipe are pipes for recycling, a reverse flow prevention unit is installed on the second liquid pipe.

[0026] In one embodiment, the reverse flow prevention unit is a single reverse flow prevention valve, or a combination of multiple reverse flow prevention valves and a disposable connector.

[0027] The present invention also provides a control component, including a control unit and the continuous heating and flushing device according to any one of the above. The control unit is electrically connected to the controller for performing human-machine interaction. When controlling the operation of the continuous heating and flushing device, it sends data to the controller or receives the data returned by the controller.

[0028] 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 the data returned by the controller.

[0029] In one embodiment, the control unit is a touch display screen integrating the input module and the display module.

[0030] The present invention also provides a warning component, including a warning unit and the continuous heating and flushing device according to any one of the above. The warning unit is electrically connected to the controller for receiving the warning data sent by the controller and converting it into sound and light for warning and reminding.

[0031] The present invention also provides a control method, including the continuous heating and flushing device according to any one of the above and the following control steps: S1. Start; S2. Equipment initialization check; S3. Determine whether the equipment self-check passes; if yes, enter step S4; if no, record the abnormality and suspend the use of the continuous heating and flushing device; S4. The controller receives the set operation data and reads the real-time operation data; S4.1. Set the data of the flow rate, target temperature, perfusion volume, and operation time for the operation of the continuous heating and flushing device; S4.2. The controller reads the data of the real-time temperature, capacity, flow rate, perfusion volume, pressure, and time, and records them; S5. The continuous heating and flushing device operates; S5.1. The liquid starts to flow along the pipeline; S5.2. The electromagnetic heating unit starts to work to heat the liquid; S5.3. Liquid temperature control; S6. Determine whether the liquid temperature control is normal; if yes, enter step S7; if no, return to step S5.2 to adjust the heating power; S7. The liquid flows into the body cavity; Determine whether the body cavity pressure is normal; if yes, continue to run the liquid into the body cavity; if not, stop the liquid flow; S8. Execute simultaneously with step S7, and let the liquid flow out of the body cavity; S9. Collect the liquid; Control the body cavity perfusion volume; determine whether the liquid volume in the body cavity is sufficient; if yes, continue to execute step S8; if not, return to execute the body cavity perfusion volume control; Execute simultaneously with the body cavity perfusion volume control, and determine the volume of the liquid to be heated and the treatment time; if it is determined that the liquid volume is sufficient or the warm irrigation treatment has not ended, execute step S4.2; if it is determined that the liquid volume is insufficient or the warm irrigation treatment has ended, execute to stop the liquid flow; S10. The electromagnetic heating unit stops working; S11. End.

[0032] The beneficial effects of the present invention are as follows: The present invention provides a continuous heating and flushing device, a control component, a warning component and a control method for body fluid or inflammatory substances in a cavity. The continuous heating and flushing device includes a first liquid pipe, on which a front temperature measurement point and a flow rate unit are arranged in sequence along the liquid flow direction. Both ends of the first liquid pipe are connected with a liquid-carrying container for loading the liquid to be heated and a metal hollow pipe; and an electromagnetic heating unit that uses electromagnetic induction to heat the metal hollow pipe and heat the liquid flowing through the metal hollow pipe; and a second liquid pipe, which is connected to the metal hollow pipe and has a rear temperature measurement point arranged along the liquid flow direction; the end of the second liquid pipe extends into the cavity to be flushed; and a third liquid pipe, one end of which is placed in the cavity to recover the liquid, the other end of the third liquid pipe is connected with a recovery container, and a recovery volume control unit is arranged between the two ends; and a cavity temperature measurement unit, a cavity pressure measurement unit and a cavity liquid volume measurement unit, which are placed in the cavity for temperature detection and pressure detection; the liquid-carrying container and the recovery container are respectively provided with a volume detection unit for detecting the real-time content volume of the container; and a controller, which makes the second liquid pipe and the third liquid pipe perform flushing in the cavity in a constant temperature and constant pressure manner. The embodiment of the present invention provides a control unit and a continuous heating and flushing device, and the control unit is electrically connected to the controller for man-machine interaction. When controlling the continuous heating and flushing device to operate, it sends data to the controller or receives the data sent back by the controller. The embodiment of the present invention provides a warning unit and a continuous heating and flushing device, and the warning unit is electrically connected to the controller for receiving the warning data sent by the controller and converting it into sound and light for warning reminder. The control method provided by the embodiment of the present invention includes control steps for the operation of the continuous heating and flushing device. It is beneficial to improve the thermal response speed, improve the temperature and pressure control accuracy, increase the flushing volume, extend the flushing time and improve the safety of flushing treatment through the continuous heating and flushing device.

[0033] Specifically, the continuous heating and flushing device provided by the embodiment of the present invention, aiming at the technical defects of the existing heating and flushing devices, realizes the following remarkable advantages through innovative structural design and intelligent control strategies: (1) Realize a revolutionary improvement in heating efficiency and temperature control accuracy Adopt the technical solution of using electromagnetic induction to heat the metal hollow pipe, and combine the front temperature measurement point, the rear temperature measurement point and the controller to form a temperature closed-loop feedback and control before and after the liquid medicine is heated, and solve the problems of low heat conduction efficiency and large temperature fluctuation of the traditional heating module (such as resistance wire or external water circulation).

[0034] By conducting experiments and collecting the operation data of the continuous heating and flushing device, it is shown that at a high flow rate of 500 ml / min, the liquid medicine can reach a temperature increase of more than 20°C within 20 seconds after flowing through the metal hollow tube. And when the continuous heating and flushing device enters the constant temperature stage, the temperature error can be controlled within ≤±0.5°C, far exceeding the heating speed of the existing technology. The electromagnetic heating unit makes the metal hollow tube heat up by electromagnetic induction, and the heating method of directly contacting the metal hollow tube with the liquid greatly improves the heat exchange efficiency, while avoiding the risk of liquid carbonization caused by local overheating of the traditional heating plate.

[0035] (2)Realize the coordinated control of dynamic pressure and flow Through the linkage of the flow rate unit, the recovery amount control unit and the intracavity pressure measurement unit, the real-time and precise adjustment of the flushing pressure in the body cavity is realized. The continuous heating and flushing device realizes self-adaptation through algorithm calculation, and can dynamically compensate for the pressure imbalance caused by the change of body cavity shape or the fluctuation of liquid recovery. The pressure measurement error is controlled within ±0.1 kPa, and its performance is significantly better than the existing devices that rely on manual pressurization or simple mechanical adjustment.

[0036] In addition, the continuous heating and flushing device can also achieve a regulation accuracy of the flow rate error of the flushing liquid medicine within ≤±5%, enabling the continuous heating and flushing device to support the clinical needs of large-flow and long-time continuous flushing.

[0037] (3)Realize multi-dimensional safety monitoring and intelligent management By measuring the temperature through the intracavity temperature measurement unit, measuring the internal liquid volume of the body through the intracavity liquid volume measurement unit, and detecting the volume of the recovery container by the recovery amount 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 detection accuracies of the data error of obtaining the internal temperature of the body cavity within ±0.1°C, the data error of obtaining the internal flushing liquid volume of the body cavity within ±10 ml, and the data error of the remaining amount of the recovery container within ±0.05 L.

[0038] Combined with the abnormal threshold alarm function of the controller, safety risks such as over-limit of the internal temperature of the body cavity, abnormal internal pressure of the body cavity, and out-of-control of the internal flushing liquid volume of the body cavity can be blocked immediately, improving the safety of the continuous heating and flushing device for heating and flushing treatment, and solving the problems of the lack of a safety monitoring module or the limited effect of the safety monitoring module in traditional devices.

[0039] (4)Realize the compatible design of high efficiency and low cost The electromagnetic heating unit of the continuous warming and flushing device is reusable, and is combined with a modular replacement structure: the liquid-carrying container, the metal hollow tube, the first liquid tube, the second liquid tube, the third liquid tube, and the recovery container that are detachable and disposable; during 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 warming and flushing device can achieve reliable medical hygiene and treatment infection control, and greatly reduce the use cost. Compared with the existing technology, which depends on the replacement of the whole set or the configuration of a set for each patient, the continuous warming and flushing device of the present invention can reduce the single-use cost, and at the same time support long-time, high-load, constant temperature and constant pressure operation for more than 8 hours, breaking through the short-time flushing bottleneck of shutdown caused by the short service life of the heating element or the limitation of the loading capacity or heating capacity of the flushing liquid medicine in the traditional device.

[0040] (5)Realize the expandability of clinical application scenarios The intracavity detection unit can be independently or integrally arranged in the second liquid tube and the third liquid tube to adapt to the flushing requirements of different body cavity structures such as the abdominal cavity, thoracic cavity, and joint cavity. For example, when the continuous warming and flushing device of the present invention is applied to nasal cavity flushing, the combination of a miniaturized liquid tube and a highly sensitive pressure sensor can avoid damage to the nasal mucosa; when applied to peritoneal lavage, through the large-capacity liquid-carrying container or directly replacing the new liquid-carrying container filled with liquid medicine, and through the cooperation of the electromagnetic heating unit and the metal hollow tube, the rapid temperature rise characteristic of the liquid medicine can be realized, which can meet the requirements of rapid treatment and large-flow continuous flushing in emergency surgery; compared with the traditional constant temperature flushing device with a single function, the versatility and scenario adaptability of the continuous warming and flushing device of the present invention are significantly improved. Description of the Drawings

[0041] In order to more clearly illustrate the technical solutions of the present invention, the drawings required for implementation will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

[0042] Figure 1 It is a schematic structural diagram of the continuous warming and flushing device of the present invention; Figure 2 It is a schematic control principle diagram of the control method of the continuous warming and flushing device of the present invention; Figure 3 It is a schematic heating principle diagram of the heating device of the present invention; Figure 4 It is the second schematic structural diagram of the continuous warming and flushing device of the present invention.

[0043] Among them, the reference numerals are as follows: 1. First liquid pipe; 11. Front temperature measurement point; 12. Flow rate unit; 13. Carrier liquid container; 2. Electromagnetic heating unit; 21. Metal hollow pipe; 3. Second liquid pipe; 31. Rear temperature measurement point; 32. Three-way solenoid valve; 33. Drain pipe; 4. Third liquid pipe; 41. Recovery container; 42. Recovery volume control unit; 5. Cavity temperature measurement unit; 6. Cavity pressure measurement unit; 7. Cavity liquid volume measurement unit; 8. Capacity detection unit; 81. First capacity sensor; 82. Second capacity sensor; 9. Body cavity. Specific implementation manners

[0044] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described below with reference to the drawings and embodiments. However, the exemplary embodiments can be implemented in various forms and should not be construed as 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 concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings represent the same or similar structures, and thus their repeated descriptions will be omitted. The words expressing positions and directions described in the present invention are all illustrated with reference to the drawings, but can be changed according to needs, and all the changes made are included in the protection scope of the present invention. The drawings of the present invention are only used to illustrate the relative position relationship and do not represent the actual proportion.

[0045] With the progress of medical technology, the flushing treatment of body fluids or inflammatory substances in cavities (such as the abdominal cavity, thoracic cavity, etc.) is increasingly widely used in clinical practice. Such treatments require continuous flushing with constant-temperature medicinal liquids or physiological saline to achieve the purpose of removing lesions and promoting healing. However, the medical devices used for such treatments in the prior art have significant limitations, resulting in the treatment effect and operation efficiency being difficult to meet the clinical requirements.

[0046] Status of the development of the prior art: For the control of temperature and flow rate: In the current market, common warm therapy devices (such as ordinary heating rinsers) mostly use simple heating modules (such as resistance wire heating plates or external hot water circulation) to achieve the heating of liquid medicine or normal saline. For example, the liquid medicine or normal saline is heated through a kettle body with a heat preservation function combined with a heating base and then output for use. However, rapid heating cannot be achieved in this process, and it is limited by the capacity of the kettle body, making it difficult to support the continuous output of a large amount of rinsing liquid. In addition, although some rinsers are equipped with temperature sensors, the contact area between their heating layers and the liquid is limited, resulting in insufficient temperature control accuracy, a risk of scalding, or large temperature fluctuations as the flow rate of the rinsing liquid medicine changes.

[0047] For the control of pressure: The pressure control of existing warm therapy rinsing devices often relies on manual pressurization (such as an air inflation bag or foot-operated pressurization) or gravity infusion methods. These methods are not only cumbersome to operate but also have poor pressure stability, making it difficult to meet the continuous constant pressure requirements for cavity rinsing. For example, some warming and pressurizing rinsing devices achieve pressurization by squeezing a rinsing liquid bag with an airbag, but the throttle nut needs to be frequently adjusted to adjust the air pressure output size or the pressurizing components need to be replaced, increasing the operation complexity.

[0048] For the control of safety and cost: Although some surgical rinsing liquid warming devices (such as disposable surgical rinsing liquid warming devices) can achieve constant temperature control, their structures are complex and rely on disposable consumables, resulting in high usage costs. In addition, there is a lack of real-time safety monitoring modules, such as modules for detecting temperature, alarming when overheating, or feeding back and adaptively adjusting the rinsing pressure; in the absence of these safety monitoring modules, it may lead to medical risks caused by temperature runaway or abnormal pressure in the warming rinsing device.

[0049] The current problems of the prior art are specifically as follows: The temperature control of existing warming rinsing devices is insufficient, unable to achieve rapid heating and continuous constant temperature output of liquid medicine, and the coordination between the temperature sensor and the heating module is poor, easily resulting in large temperature fluctuations or local overheating of the heated content liquid (liquid medicine or normal saline), leading to the possible risk of scalding.

[0050] The continuous heating performance of existing warming rinsing devices is poor. Due to limitations in heating performance and the limited capacity of the container for storing liquid medicine, continuous heating of a large amount of heated content liquid (liquid medicine or normal saline) cannot be achieved, and the heating amount is limited. For surgical operations or scenarios that require continuous rinsing for a long time (more than 20 hours), their continuous warming and rinsing performance is insufficient, affecting the treatment effect of the long-term rinsing course.

[0051] The pressure stability of existing warming rinsing devices is poor. The warming rinsing devices rely on manual pressurization or simple mechanical pressurization structures, making it difficult to maintain a constant rinsing pressure for the output liquid, affecting the effect of rinsing treatment.

[0052] The existing warming and flushing device is operationally complex and inefficient. The warming and flushing device needs to frequently adjust the output pressure or replace the pressurizing components, increasing the operation burden on medical staff. Especially in emergency scenarios, its rapid response performance is significantly insufficient.

[0053] The existing warming and flushing device lacks a safety monitoring mechanism. Most warming and flushing devices lack the function of real-time temperature and pressure abnormal alarm, presenting potential medical risks.

[0054] The use cost of the existing warming and flushing device is high. Some high-precision constant temperature devices rely on complex structures or disposable consumables, resulting in limited clinical popularization.

[0055] The above problems severely restrict the effectiveness and safety of the flushing treatment method for the cavity. There is an urgent need for a warming and flushing device that can integrate rapid heating, constant temperature and pressure output, intelligent monitoring, and low cost to meet the clinical requirements of rapid heating response, precise temperature control, large-volume flushing, long-time flushing, precise pressure control, and safety and reliability of the existing flushing treatment method.

[0056] In view of this, in the specific implementation manner, a continuous warming and flushing device for body fluid or inflammatory substances in the cavity is provided, including an electromagnetic heating unit, a first liquid pipe connecting the liquid container and the metal hollow pipe, a flow rate unit arranged on the first liquid pipe, and a second liquid pipe and a third liquid pipe extending into the body cavity; the third liquid pipe is connected to the recovery container and is provided with a recovery amount 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 medicine is realized and then the constant temperature and pressure output flushing is carried out into the body cavity. At the same time, the liquid volume in the body cavity is precisely controlled during the flushing process; through the coordination of the flow rate unit and the recovery amount control unit, large-flow continuous flushing is supported, and the precise temperature and pressure control inside and outside the body cavity and the over-limit alarm function of the temperature and pressure in the body cavity are integrated to ensure the constant temperature and pressure flushing of the flushing liquid in the body cavity, significantly improving the flushing efficiency and treatment effect of clinical operations; 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 operations of the continuous warming and flushing device by enhancing the level of automatic monitoring and cooperating with the closed-loop feedback control circuit, thereby effectively solving the technical problems of slow heating response speed, low temperature and pressure control accuracy, small flushing volume, short flushing time, and low safety existing in the existing warming and flushing device.

[0057] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0058] Figure 1 It is a structural schematic diagram of the continuous warming and flushing device of the present invention.

[0059] The first embodiment of the continuous warming and flushing device is as Figure 1As shown in the figure, it includes a first liquid pipe 1, which is successively provided with a front temperature measurement point 11 and a flow velocity unit 12 along the liquid flow direction. Both ends of the first liquid pipe 1 are connected to a liquid-carrying container 13 for loading the liquid to be heated and a metal hollow pipe 21; and an electromagnetic heating unit 2 that makes the metal hollow pipe 21 heat up by using electromagnetic induction and heats the liquid flowing through the metal hollow pipe 21; and a second liquid pipe 3, which is connected to the metal hollow pipe 21 and is provided with a rear temperature measurement point 31 along the liquid flow direction; 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, the other end of the third liquid pipe 4 is connected to a recovery container 41, and a recovery amount control unit 42 is provided between both ends; and a cavity temperature measurement unit 5, a cavity pressure measurement unit 6, and a cavity liquid volume measurement unit 7. The cavity temperature measurement unit 5, the cavity pressure measurement unit 6, and the cavity liquid volume measurement unit 7 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 volume of the container; and a controller electrically connected to the front temperature measurement point 11, the flow velocity unit 12, the electromagnetic heating unit 2, the rear temperature measurement point 31, the cavity temperature measurement unit 5, the cavity pressure measurement unit 6, the cavity liquid volume measurement unit 7, the recovery amount control unit 42, and the capacity detection unit 8, so that the second liquid pipe 3 and the third liquid pipe 4 perform flushing in the body cavity 9 in a constant temperature and constant pressure manner.

[0060] Wherein, the liquid is a medicinal liquid or physiological saline.

[0061] Specifically, the metal hollow pipe 21 is provided with a liquid inlet end and a liquid outlet end. The first liquid pipe 1 is connected to the liquid-carrying container 13 and the liquid inlet end of the metal hollow pipe 21, while the liquid outlet end of the metal hollow pipe 21 is connected to one end of the second liquid pipe 3.

[0062] During installation and connection, the first liquid pipe 1 passes through the flow velocity unit 12 and then is connected to the liquid inlet end of the metal hollow pipe 21.

[0063] And a capacity detection unit 8 for detecting the real-time liquid volume or capacity of the liquid-carrying container 13 and the recovery container 41 is a sensor that can be detachably separated from between the liquid-carrying container 13 and the recovery container 41.

[0064] For the liquid-carrying container 13, the first liquid pipe 1, the metal hollow pipe 21, the second liquid pipe 3, the third liquid pipe 4, and the recovery container 41, since a section of the second liquid pipe 3 and the third liquid pipe 4 needs to extend into the body cavity 9 for flushing and suction respectively, the second liquid pipe 3 and the third liquid pipe 4 must be disposable pipes, so as to avoid the next infection under the repeated use of the continuous heating flushing device.

[0065] Specifically, the continuous heating and flushing device provided by the embodiments of the present invention addresses the technical deficiencies of existing heating and flushing devices and achieves the following remarkable advantages through innovative structural designs and intelligent control strategies: Achieve a revolutionary improvement in heating efficiency and temperature control accuracy: By adopting the technical solution of electromagnetic induction heating of the metal hollow tube 21 and combining the front temperature measurement point 11, the rear temperature measurement point 31, and the controller, a temperature closed-loop feedback and control before and after the liquid medicine heating are formed, solving the problems of low heat conduction efficiency and large temperature fluctuations of traditional heating modules (such as resistance wires or external water circulation).

[0066] Through experiments, the operation data of the continuous heating and flushing device shows that at a high flow rate of 500 ml / min, the liquid medicine can be heated by more than 20 °C within 20 seconds after flowing through the metal hollow tube 21. And when the continuous heating and flushing device enters the constant temperature stage, the temperature error can be controlled within ≤ ±0.5 °C. Compared with the existing technology where the heating-up time is ≥ 1 minute and the constant temperature error is ±2 °C, the heating-up 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 existing constant temperature flushing devices. The electromagnetic heating unit 2 uses electromagnetic induction to heat the metal hollow tube 21, and the heating method of directly contacting the metal hollow tube 21 with the liquid greatly improves the heat exchange efficiency and at the same time avoids the risk of liquid carbonization caused by local overheating of the traditional heating plate.

[0067] Achieve coordinated control of dynamic pressure and flow rate: Through the linkage of the flow rate unit 12, the recovery amount control unit 42, and the intracavity pressure measurement unit 6, real-time and precise adjustment of the flushing pressure in the body cavity 9 is achieved. The continuous heating and flushing device realizes self-adaptation through algorithm calculation, can dynamically compensate for the pressure imbalance caused by the morphological changes of the body cavity 9 or the fluctuations in liquid recovery, and controls the pressure measurement error within ±0.1 kPa. Cooperating with precise pressure measurement, the flow rate unit 12, and the recovery amount control unit 42, it can precisely control the pressure of the liquid medicine input into the body cavity 9. The pressure control performance of the continuous heating and flushing device of the present invention is significantly better than that of the existing devices that rely on manual pressurization or simple mechanical adjustment, where the pressure fluctuation is usually ≥ 1 kPa.

[0068] In addition, the continuous heating and flushing device can also achieve a regulation accuracy of the flow rate error of the flushing liquid medicine within ≤ ±5%, enabling the continuous heating and flushing device to support the clinical requirements for large-flow (≥ 500 ml / min) and long-time continuous flushing.

[0069] Realize multi-dimensional safety monitoring and intelligent management: By measuring the temperature through the intracavitary temperature measurement unit 5, measuring the body fluid volume in the body through the intracavitary fluid volume measurement unit 7, and detecting the capacity of the recovery container 41 by the recovery volume control unit 42 and the capacity detection unit 8, a multiple redundant monitoring network is formed, which can synchronously track the internal temperature of the body cavity 9, and achieve a detection accuracy of the data error of the internal temperature of the body cavity 9 within ±0.1 °C, the data error of the internal flushing fluid volume of the body cavity 9 within ±10 ml, and the data error of the remaining volume of the recovery container 41 within ±0.05 L.

[0070] Combined with the abnormal threshold alarm function of the controller, it can immediately block safety risks such as over-temperature in the body cavity 9, abnormal pressure in the body cavity 9, and out-of-control flushing fluid volume in the body cavity 9, improving the safety of the continuous warming and flushing treatment of the continuous warming and flushing device, and solving the problems of the lack of a safety monitoring module or the limited effect of the safety monitoring module in traditional devices. When the temperature in the body cavity 9 deviates from the set value by 0.5 °C, the control system of the continuous warming and flushing device can adjust the electromagnetic heating power within 0.5 seconds, adjust the temperature of the liquid medicine input into the body cavity 9, and simultaneously pump out the flushing fluid entering the body cavity 9 through the recovery volume control unit 42 to avoid tissue burns.

[0071] Realize the compatible design of high performance and low cost: The electromagnetic heating unit 2 of the continuous warming and flushing device can be reused, combined with a modular replacement structure: a detachable and disposable liquid-carrying container 13, a metal hollow 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 metal hollow 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, enabling the continuous warming and flushing device to achieve reliable medical and health care and treatment infection control, and greatly reducing the use cost. Compared with the existing constant temperature flushing devices that rely on a complete set replacement or are independently configured for each patient (cost ≥ 2000 yuan), the continuous warming and flushing device of the present invention can reduce the single-use cost (reduce to less than 200 yuan).

[0072] 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-time flushing bottleneck of traditional devices caused by the short service life of heating elements, the limited loading capacity of flushing liquid medicine, or the heating capacity limit, resulting in shutdown.

[0073] Achieve scalability in clinical application scenarios: The in-vitro detection unit can be independently or integrally arranged on the second liquid pipe 3 and the third liquid pipe 4 to adapt to the flushing requirements of different body cavity 9 structures such as the abdominal cavity, thoracic cavity, and joint cavity. For example, when the continuous warming flushing device of the present invention is applied to nasal cavity flushing, the combination of a miniaturized liquid pipe and a highly sensitive pressure sensor can avoid damage to the nasal mucosa; when applied to peritoneal lavage, through a large-capacity liquid carrier container 13 or directly replacing a new liquid carrier container 13 filled with medicine (capacity ≥ 5L), and the rapid heating characteristic of the liquid medicine by the electromagnetic heating unit 2 on the metal hollow pipe 21, it can meet the requirements of rapid treatment and large-flow continuous flushing in emergency surgeries; compared with traditional constant-temperature flushing devices with single functions, the versatility and scenario adaptability of the continuous warming flushing device of the present invention have been significantly improved.

[0074] As one of the optional implementation manners: Figure 1 It is a schematic structural diagram of the continuous warming flushing device of the present invention.

[0075] Regarding the specific setting and function of the above-mentioned flow rate unit 12, in this embodiment, for example Figure 1 As shown, the flow rate unit 12 includes a flushing flow rate control component and a flushing flow rate monitoring component. The flushing flow rate monitoring component and the flushing flow rate control component are respectively used to monitor and control the liquid flow rate of the first liquid pipe 1 leading to the metal hollow pipe 21.

[0076] During application, the flushing flow rate control component, through an electric clamp or a flow regulator driven by a stepping motor, receives the instructions of the controller in real time and dynamically adjusts the liquid flow rate of the first liquid pipe 1. For example, when the controller determines that the flushing flow rate needs to be reduced according to the intracavity pressure data, the electric clamp can clamp the pipe from the outside of the first liquid pipe 1 within 0.1 second, narrow the inner channel of the first liquid pipe 1, and linearly reduce the flow rate from 500 ml / min to 400 ml / min, avoiding excessive fluctuations in the pressure within the body cavity 9 or the temperature of the flushing liquid caused by sudden changes in the flow rate.

[0077] It also has the following functions and effects: (1) Precise flow rate matching: Through closed-loop control, flow rate monitoring - controller - algorithm calculation - electric clamp adjusts the size of the inner channel of the first liquid pipe 1 to ensure that the error between the actual flow rate and the set value is ≤ ±5%, solving the problem of flow rate deviation (usually the deviation is ≥ ±20%) caused by traditional gravity infusion or airbag pressurization.

[0078] (2) Dynamic balance of pressure: During the flushing process, if the intracavitary pressure measuring unit 6 detects that the pressure exceeds the threshold value (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 drug solution in the first liquid tube 1, thereby reducing the flushing flow rate of the drug solution input into the body cavity 9 by 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.

[0079] Compared with the prior art, the advantages of the present invention are as follows: 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, which significantly improves the continuity of flushing treatment in the body cavity 9.

[0080] Figure 1 It is a structural schematic diagram of the continuous heating and flushing device of the present invention.

[0081] Regarding the specific configuration and function of the recovery volume control unit 42, this embodiment 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 extracting liquid in the body cavity 9 and transporting it to the recovery container 41.

[0082] When applied, the recovery flow rate control component can adopt a negative pressure pump and a pressure sensor linkage design, and the recovery flow rate monitoring component can adopt a non-contact flow meter. The controller automatically adjusts the power of the negative pressure pump according to the real-time data of the intracavitary liquid volume measurement unit 7 and the intracavitary pressure measurement unit 6 (such as liquid volume error ±10ml, pressure error 0.1kPa) and the preset recovery ratio (such as the recovery flow ratio of the second liquid pipe 3 output to the body cavity 9 for flushing / the third liquid pipe 4 recovering liquid in the body cavity 9 is 1:0.95). For example, when the flushing flow rate is 500ml / min, the recovery flow rate is automatically adjusted to 475ml / min to ensure that the liquid retention in the body cavity 9 is stable within a safe range.

[0083] Other functions and effects: (1) Preventing the retention and excess of liquid in the body cavity 9: By precisely controlling the recovery flow rate, the risk of liquid residue (prone to infection) or excessive suction (causing tissue dehydration) caused by the insufficient recovery efficiency of the liquid in the body cavity 9 caused by conventional devices can be avoided; (2) Adaptive cavity morphology: When the body cavity 9 is expanded due to flushing (such as peritoneal lavage), the recovery flow rate monitoring component can detect the change in the recovery flow rate in real time, dynamically adjust the suction power of the negative pressure pump, and compensate for the recovery resistance fluctuation caused by the change in the volume of the body cavity 9.

[0084] Advantages over the prior art: Most of the existing warming and flushing devices adopt fixed negative pressure or manual adjustment for recovery (such as a knob-type negative pressure valve), which requires frequent intervention by medical staff and is prone to recovery delay (≥30 seconds). The continuous warming and flushing device of the present invention realizes the automatic matching of the ratio of the recovery flow rate to the flushing flow rate through the closed-loop perception and control of the measurement unit, the controller, the flow rate unit 12 and the recovery volume control unit 42, with the error controlled within ±3%, and the operation efficiency of the warming and flushing treatment is increased by more than 80%.

[0085] Regarding the role of the above-mentioned controller in the continuous warming and flushing device, the controller is used to receive data of the set target liquid flow rate and the target liquid temperature, and control: before running the warming and flushing, read the liquid volume data in the liquid-carrying container 13 through the volume detection unit 8 and the temperature data of the liquid before heating through the pre-temperature measurement point 11, and use an algorithm to calculate the heating power required for the electromagnetic heating unit 2 to heat the flowing liquid to the target liquid temperature; after running the warming and flushing, use the post-temperature measurement point 31 and the in-cavity temperature measurement unit 5 to form a post-heating temperature feedback mechanism to monitor the heating effect of the liquid; then, according to the liquid temperature rise state, calculate the actual heating power of the metal hollow tube 21 for the flowing liquid through an algorithm, calculate the heating power that the electromagnetic heating unit 2 needs to adjust through an algorithm, and finally quickly heat the liquid to the set target temperature. At the same time, monitor the real-time pressure and liquid volume in the body cavity 9 through the in-cavity pressure measurement unit 6 and the in-cavity liquid volume measurement unit 7; during the operation of the warming and flushing, control the flushing flow rate control component and the recovery flow rate control component according to the data calculated by the algorithm to control the flushing flow rate and the recovery flow rate of the liquid in the body cavity 9, so as to control the flushing effect in the body cavity 9.

[0086] During application, based on the real-time data of the volume 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), the controller predicts the remaining liquid volume depletion time through an algorithm. For example, 2.3L of the remaining liquid volume / 0.5L per minute, and it is obtained that the flushing can continue for 4.6 minutes. And 1 minute before the remaining liquid medicine is exhausted, a "low remaining liquid volume" warning is sent to the operation interface, and 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, and avoid the interruption of the flushing treatment caused by insufficient remaining liquid medicine volume or failure to replace or supplement the liquid medicine in time, and reduce the impact on the flushing treatment effect.

[0087] Also have the following functions and effects: (1) Intelligent warning and seamless connection: Through the function of predicting the liquid volume depletion time, the problem of flushing suspension caused by sudden liquid interruption in the traditional warming and flushing device (requiring re-air exhaust and temperature calibration) is solved, ensuring the continuity of the continuous warming and flushing treatment of the body cavity 9; (2) Dynamic power compensation: When the liquid level in the liquid-carrying container 13 drops, causing the inlet pressure of the first liquid pipe 1 to change, the controller automatically adjusts the heating power of the electromagnetic heating unit 2 (for example, from 1000 W to 900 W) to offset the effect of the change in flow rate stability on the temperature, maintain the constant temperature of the liquid medicine, and keep the temperature control accuracy within ±0.5°C.

[0088] 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 the simple liquid volume alarm of the traditional heating and flushing device and the 3-5 minutes of manual dosing of liquid to less than 30 seconds, thereby achieving 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.

[0089] In some embodiments, when the controller is running the heated flushing operation, the controller 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 through the capacity detection unit 8, 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 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.

[0090] When the temperature measurement unit 5 in the cavity detects an abnormal temperature, such as when the set temperature is 37°C but the actual temperature is 38.5°C, the controller immediately executes the three-level response: 1. First-level response, the reaction time is controlled within 0.1 seconds: cut off the power supply of electromagnetic heating unit 2 and stop heating; 2. Secondary response, the reaction time is controlled within 0.5 seconds: start the flushing liquid rapid cooling module, such as setting a cooling bypass in the second liquid pipe 3, installing a cooling pipe in the cooling bypass, injecting 25°C saline into the cooling pipe, so that the newly injected saline with a lower temperature enters the body cavity 9 from the second liquid pipe 3, and the temperature in the body cavity 9 is controlled in time; 3. Level 3 response, reaction time is controlled within 1 second: the controller triggers the sound and light alarm and records the 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.

[0091] Other functions and effects: (1)Multi-level safety protection: The controller performs closed-loop control on the electromagnetic heating unit 2, the flow rate unit 12, and the recovery amount control unit 42, and constitutes a hierarchical response mechanism, which can suppress the risk of out-of-control liquid temperature in the bud stage and timely cool and 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; (2)Data traceability and optimization: The controller records the data of abnormal events (such as temperature fluctuation curves, operation stage marks), and the recorded abnormal event data can be exported and analyzed later for optimizing the liquid temperature control and heating algorithm or the clinical operation specifications of heating and flushing refrigeration.

[0092] Advantages compared with the prior art: The traditional heating and flushing device relies on medical staff to observe the temperature display with the naked eye and then manually intervene after finding abnormal temperature. It takes an average of 5 - 8 seconds from finding the abnormality to taking measures. In this solution, through full-automatic closed-loop control, the risk disposal time of the liquid in the body cavity 9 rising above the preset temperature caused by the liquid medicine input into the body cavity 9 is compressed to within 1 second, eliminating the medical risk of scalding caused by abnormal temperature rise during the heating and flushing treatment process.

[0093] Figure 1 It is a schematic structural diagram of the continuous heating and flushing device of the present invention.

[0094] The second embodiment of the continuous heating and flushing device is as Figure 1 shown. The difference between this embodiment and the first embodiment is that in order to cure the disadvantages of the traditional heating and flushing device relying on manual estimation of the liquid volume (the liquid volume estimated manually generally has a large error, even up to ±500 ml because the flow rate and flow are not pre-tested), and being unable to predict the interruption timing of heating and flushing, the liquid volume management accuracy is improved to increase the fault tolerance rate of clinical operations.

[0095] To solve this problem, the capacity detection unit 8 includes a first capacity sensor 81 and a second capacity sensor 82. Among them, the first capacity sensor 81 is arranged in the liquid-carrying container 13, so the first capacity sensor 81 is used to monitor the liquid volume of the liquid to be heated in the liquid-carrying container 13 for the algorithm of the controller to calculate how long it can be flushed; the second capacity sensor 82 is arranged in the recovery container 41 for monitoring the recovered liquid volume in the recovery container 41. By combining the initial capacity of the recovery container 41 and using the algorithm to calculate, it can calculate how much liquid volume can be continuously recovered or how long it can cooperate with flushing.

[0096] During application, the first capacity sensor 81 (such as a high-precision ultrasonic liquid level gauge) monitors the remaining liquid volume in the liquid-carrying container 13 in real time (with an error of ±10 ml), and synchronizes the data to the controller. The controller combines the current flushing flow rate (such as 500 ml / min) and the target flushing volume (such as 4 L), and dynamically calculates the remaining available time through an algorithm (such as when there are 2 L remaining, the remaining time = 2 L / 0.5 L / min = 4 minutes), visualizes the remaining available time on the display screen, and triggers an alarm when the liquid volume is about to run out (such as when there is 5% remaining).

[0097] Meanwhile, the second capacity sensor 82 (such as a gravity-sensing weighing module) monitors the recovered liquid volume of the recovery container 41. Combining the initial capacity (such as the maximum capacity of the recovery container 41 is 5 L) and the real-time recovery flow rate (such as 475 ml / min), it calculates the remaining recoverable capacity (such as when 3 L has been recovered, the remaining recoverable capacity = 5 L - 3 L = 2 L), and predicts the recovery full-load time (such as 2 L / 0.475 L / min ≈ 4.2 minutes). When the recovery capacity approaches the upper limit (such as ≥90%), the controller automatically reduces the flushing flow rate (such as from 500 ml / min to 300 ml / min) and the recovery flow rate (such as from 475 ml / min to 275 ml / min) to prevent liquid overflow.

[0098] The functions and effects it exerts are as follows: (1) Dual-end capacity linkage control: Through the bidirectional data synchronization between the liquid-carrying container 13 and the recovery container 41, the dynamic balance of the flushing and recovery flows is achieved, avoiding the imbalance problems of "flushing without recovery" or "recovery without flushing" caused by single liquid volume monitoring; even only detecting the liquid volume in the body cavity 9, resulting in blind operations of flushing flow rate, liquid volume, recovery flow rate, and liquid volume, with high risks and requiring experienced medical staff to operate.

[0099] (2) Intelligent resource management: During an emergency operation, if the remaining liquid volume in the liquid-carrying container 13 only supports 2 minutes of flushing, while the recovery capacity can receive liquid for another 3 minutes, the controller will automatically match the limit values of both, give an early alarm and reduce the flushing dosage, reserving operation time for replacing the liquid-carrying container 13 and the recovery container 41, and preventing treatment interruption caused by the exhaustion of the single-side capacity.

[0100] Figure 1 is a schematic structural diagram of the continuous warming flushing device of the present invention; Figure 3 is a schematic diagram of the heating principle of the heating device of the present invention.

[0101] The third embodiment of the continuous warming flushing device is as follows Figure 1As shown, the difference between this embodiment and the first embodiment is that in order to break through the technical bottlenecks of short lifespan and slow temperature rise caused by material limitations of traditional heating tubes, while meeting the requirements of heating the flowing liquid medicine through electromagnetic effects and improving the heat exchange efficiency through changes in geometric structures; the specific setting of the metal hollow tube 21: the metal hollow tube 21 is a stainless steel hollow tube.

[0102] Specifically, in order to increase the heating time of the liquid medicine, the shape of the metal hollow tube 21 is spiral.

[0103] In some embodiments, the shape of the metal hollow tube 21 is a coiled tube with multiple coils, which is used to increase the length of the metal hollow tube 21, extend the path of the liquid medicine flowing through the metal hollow tube 21, and cooperate with the heating of the electromagnetic heating unit 2, so that the liquid medicine absorbs more heat during the movement process, which helps to improve the heating efficiency.

[0104] During application, the material of the metal hollow tube 21 is actually not limited to stainless steel hollow tubes, that is, the metal hollow tube 21 can be made of conductive materials as long as it can use electromagnetic effects to heat the liquid medicine.

[0105] For example: the metal hollow tube 21 can be made of copper tubes or aluminum tubes, but it is necessary to avoid direct corrosion or only for one-time use.

[0106] The stainless steel hollow tube is coiled into a spiral shape (such as a diameter of 5 cm and a total of 10 coils), so that the path of the liquid medicine flowing through is extended from 30 cm in the straight tube state to 2 - 3 m; when the electromagnetic heating unit 2 uses a 20 kHz high-frequency current to excite the stainless steel tube to generate eddy currents, the residence time of the initially entering liquid medicine in the coiled tube can be increased from 0.5 seconds to 5 seconds, and combined with the fact that the wall of the stainless steel hollow tube completely surrounds and contacts the liquid medicine and continuously releases heat, rapid temperature rise can be achieved (for example, it only takes 10 seconds to raise the temperature from 25°C to 37°C).

[0107] In addition, the high thermal conductivity (thermal conductivity reaches 16.2 W / m·K) and corrosion resistance (resisting liquid medicine with pH 2 - 12) of stainless steel materials can avoid problems such as oxidation of copper tubes or aluminum tubes after long-term use, which pollute the liquid medicine, and even pipeline breakage and liquid leakage failure.

[0108] The functions and effects it plays: (1) Doubled heating efficiency: The coiled tube design extends the heating contact time and expands the heat exchange area, increasing the temperature rise range of the liquid medicine flowing through once from 5°C in the straight tube to 20°C, and the heating efficiency is increased by 400% compared with the traditional straight tube scheme; (2) Material compatibility optimization: The stainless-steel material can withstand high-temperature and high-pressure steam sterilization (135°C / 0.3 MPa) and supports reuse over 1,000 times. Compared with the disposable heating tube in the traditional solution (single-use cost > 30 yuan), the reuse cost of this embodiment can be reduced to 0.03 yuan per use.

[0109] 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 forms the heater of the continuous heating and flushing device.

[0110] The heating principle of the heater is as Figure 3 shown: At the beginning, place the metal hollow tube 21 on the heating 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, let the electromagnetic heating unit 2 input alternating current, and at the same time, the switching power supply circuit, the drive and protection circuit, and the rectifier filter and switching tube work, 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 loop current is formed inside the metal hollow tube 21; at the same time, the metal hollow tube 21 feeds liquid, and the metal hollow tube 21 generates heat due to resistance, and the liquid medicine flowing under the inner wall of the tube is quickly heated and then discharged.

[0111] The fourth embodiment of the continuous heating and flushing device. The difference between this embodiment and the first embodiment is 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 heating efficiency attenuation, a leapfrog upgrade from "result control" to "process optimization" is realized.

[0112] Regarding the specific settings of the above-mentioned front temperature measurement point 11 and rear temperature measurement point 31, a front temperature sensor is installed at the front temperature measurement point 11; a rear temperature sensor is installed at the rear temperature measurement point 31.

[0113] Specifically, the front temperature sensor and the rear temperature sensor can be contact temperature sensors or non-contact temperature sensors.

[0114] During application, the front temperature sensor (such as using a PT1000 platinum resistance sensor) and the rear temperature sensor (such as using an infrared non-contact thermometer) respectively collect the temperature data of the liquid medicine before heating and after heating in real time (the accuracy reaches ±0.1°C), and transmit the two groups of temperature data to the controller.

[0115] The controller calculates the actual heating power dynamically by comparing the temperature difference between the two (e.g., from 20°C before heating to 40°C after heating), and combining with the current flow rate (500 ml / min) (such as during actual temperature rise, when the temperature difference climbs by 20°C, the required power is 1.2 kW), and compares it with the theoretical value (in theoretical heating calculation, when the temperature difference climbs by 20°C, the required power is 1.5 kW), and automatically calibrates the output frequency of the electromagnetic heating unit 2 (such as adjusting from 20 kHz to 22 kHz) to compensate for the energy efficiency attenuation caused by tube wall fouling or power supply fluctuations.

[0116] The functions and effects it exerts are as follows: (1) Two-way temperature difference closed-loop control: The front temperature sensor and the rear temperature sensor form a real-time feedback loop of heating efficiency. When it is detected that the actual temperature rise is lower than expected (such as the temperature difference of temperature rise 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 tube 3 (the temperature error of the constant temperature output of the liquid medicine is controlled within ±0.5°C). (2) Fault prediction and maintenance reminder: If the controller needs power compensation > 15% for three consecutive temperature calibrations, the controller automatically determines that there is fouling or aging in the metal hollow tube 21, triggers a "maintenance warning", and gives a reminder on the display screen, avoiding the decline in the heating and rinsing treatment efficiency and effect caused by the hidden performance decline of the traditional heating and rinsing device, and preventing possible medical risks.

[0117] The fifth embodiment of the continuous heating and rinsing device. The difference between this embodiment and the first embodiment is that in order to completely eliminate the risk of cross-infection caused by reverse flow in reusable pipelines, break through the technical bottleneck that the traditional anti-reverse structure cannot be compatible with high-temperature disinfection and low-cost maintenance, and achieve the dual goals of "surgical-level aseptic standard" and "consumable-level usage cost" in the reusable scenario of the continuous heating and rinsing device.

[0118] Since the second liquid tube and the third liquid tube need to extend into the body cavity, they need to be disposable tubes. While the first liquid tube and the metal hollow tube do not need to extend into the body cavity, so these two pipelines can be selected as disposable tubes or recycled tubes according to the specific usage method.

[0119] Specifically, the first liquid tube and the metal hollow tube are disposable tubes or recycled tubes.

[0120] In some embodiments, when the first liquid tube and the metal hollow tube are recycled tubes, an anti-reverse unit is installed on the second liquid tube.

[0121] In some embodiments, the anti-reverse unit is a single anti-reverse valve, or a combination of multiple anti-reverse valves and a disposable connector.

[0122] During application, when the first liquid tube and the metal hollow tube are used as reusable tubes, the anti-reverse unit on the second liquid tube ensures unidirectional liquid flow through an anti-reverse valve or a combination of "anti-reverse valve + disposable connector".

[0123] For example, in the scenario of abdominal cavity irrigation, if the liquid flows reversely due to the pressure fluctuation in the body cavity, the anti-reverse valve (which can be a duckbill valve or a spring-type one-way valve during application) can be immediately locked to block the reverse flow path; if the patient needs to be replaced or the surgical site needs to be switched, the second liquid tube can be detached from the metal hollow tube, and the second liquid tube, the disposable connector (such as a Luer connector seal cap) and the anti-reverse valve body can be replaced together to achieve aseptic switching of the reusable pipeline quickly.

[0124] The functions and effects it plays: (1) Block the risk of cross-contamination: The anti-reverse valve provides active protection. When the irrigation pressure is abnormal (such as a sudden increase in intrathoracic pressure caused by the patient coughing), the anti-reverse valve can respond and lock within 50 ms to prevent the body fluid containing pathogens from flowing reversely into the metal hollow tube and the liquid-carrying container, avoiding pipeline contamination; the safety is improved compared with traditional reusable devices.

[0125] Isolated by the disposable connector. When replacing the patient or using the same patient multiple times, only the second liquid tube, the disposable connector and the anti-reverse valve need to be discarded. The low consumable cost is low (saving 90% compared with the all-pipeline disposable design), and it also ensures absolute isolation between different patients, solving the risk of nosocomial infection hidden danger caused by incomplete pipeline cleaning of existing reusable devices.

[0126] (2) Compatible with reuse and efficient maintenance: Modular cleaning design. The metal hollow tube and the second liquid tube adopt an interference fit quick-release structure. After the operation, the metal hollow tube and the second liquid tube can be separated, and the metal hollow tube can be retained and disinfected in a high-temperature disinfection cabinet (135 °C), avoiding the cleaning dead corners (such as the residual liquid medicine crystals at the threaded interface) caused by the complex structure of the traditional integrated pipeline.

[0127] Compared with the prior art, the advantages of this embodiment: Since traditional reusable irrigation devices usually do not configure a dedicated anti-reverse unit or only use a simple check valve (such as a silicone film valve), their heat resistance and sealing performance are poor, and the connecting components cannot be replaced quickly. The reuse cost is high and the risk is large.

[0128] In this embodiment, through the combination of "second liquid tube, anti-reverse valve + disposable connector", it has both safety and economy: The anti-reverse valve is made of medical-grade PEEK material, which can withstand high temperatures above 200 °C and strongly corrosive liquid medicine; the second liquid tube and the disposable connector adopt a quick-release structure, and the replacement operation time is less than 10 seconds, and no special tool is required. Both in terms of cost or replacement time, it is significantly better than the overall pipeline replacement required by the traditional solution.

[0129] Based on the above embodiments of the continuous heating and flushing device, a control component is provided, which includes a control unit and the above-mentioned continuous heating and flushing device. The control unit is electrically connected to the controller and is used for human-computer interaction. When controlling the continuous heating and flushing device to operate, it sends data to the controller or receives the data sent back by the controller.

[0130] As one of the optional implementation manners: In some embodiments, the control unit includes an input module and a display module; the input module is used for inputting and sending data to the controller; the display module is used for receiving and displaying the data sent back by the controller.

[0131] When in application, the control unit is a touch display screen integrating the input module and the display module; this means that the control unit can be a touch display screen integrating the input function of the input module and the display function of the display module.

[0132] Based on the above embodiments of the continuous heating and flushing device, a warning component is provided, which includes a warning unit and the above-mentioned continuous heating and flushing device.

[0133] When in application, the warning unit is electrically connected to the controller and is used for receiving the warning data sent by the controller and converting it into sound and light for warning reminders.

[0134] 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.

[0135] Based on the above embodiments of the continuous heating and flushing device, a control method is provided, which includes the above-mentioned continuous heating and flushing device and the following control steps, as Figure 2 shown: S1. Start; S2. Equipment initialization check; S3. Determine whether the equipment self-check passes; if yes, enter step S4; if no, record the abnormality and suspend the use of the continuous heating and flushing device; S4. After the controller receives the set operating data and reads the real-time operating data, enter step S5; S4.1. Set the data of the flow rate, target temperature, perfusion volume and operating time for the operation of the continuous heating and flushing device; S4.2. The controller reads the data of the real-time temperature, capacity, flow rate, perfusion volume, pressure and time, and records them; S5. The continuous heating and flushing device operates; S5.1. The liquid starts to flow along the pipeline; S5.2. The electromagnetic heating unit starts to work to heat the liquid; S5.3. Liquid temperature control; 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. S7. The liquid flows into the body cavity. Determine whether the body cavity pressure is normal. If yes, continue to let the liquid flow into the body cavity; if no, stop the liquid flow. S8. Executed simultaneously with step S7, the liquid flows out of the body cavity. S9. Liquid collection. Control of the body cavity perfusion volume. Determine whether the amount of liquid in the body cavity is sufficient. If yes, continue to execute step S8; if no, return to execute the control of the body cavity perfusion volume. Executed simultaneously with the control of the body cavity perfusion volume, determine the volume of the liquid to be heated and the treatment time. If it is determined that the liquid volume is sufficient or the warm flushing treatment has not ended, execute step S4.2; if it is determined that the liquid volume is insufficient or the warm flushing treatment has ended, stop the liquid flow. S10. The electromagnetic heating unit stops working. S11. End.

[0136] Among them, as Figure 4 shown, a three-way solenoid valve 32 can be added to the second liquid pipe 3 between the rear temperature measurement point 31 and the body cavity 9, and a liquid discharge pipe 33 is 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. The three-way solenoid valve 32 opens the channel connecting 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 outside the body cavity, preventing the liquid with abnormal temperature (too high or too low) from entering the body cavity and affecting the treatment effect, and avoiding treatment risks.

[0137] When in application, through a multi-level closed-loop feedback and intelligent decision-making mechanism, the control method realizes the full-process automatic management from equipment self-check to the termination of the warm flushing treatment. The core functions and effects of applying this control method to the continuous warm flushing device are as follows: (1) Equipment initialization and self-check (S2 - S3) Judgment of the hardware state: In the initialization stage, automatically detect the impedance of the electromagnetic heating unit (normal range 0.5 - 1.2 Ω), the liquid pipe sealing performance (pressure maintenance test, maintaining a pressure of 3 kPa for 10 seconds to test the leakage rate), and the sensor calibration status (such as comparing the temperature data measured by the front temperature measurement sensor with the temperature data of the standard temperature source, obtaining the deviation data, and then determining the measurement error of the sensor) to ensure the reliability of the hardware. Safety access interception: If self-check finds that the scaling coefficient of the metal hollow tube > 15% (calculated from the heating power-temperature rise efficiency curve), or the response delay of the recovery volume control unit > 0.5 seconds, then maintenance locking is triggered, the equipment startup is prohibited, and a fault code is generated (such as E01: insufficient heating efficiency, E02: recovery response timeout).

[0138] (2)Dynamic matching of operating parameters (S4 - S5.2) Intelligent parameter preloading: Through the data storage area in the controller, multiple usage modes are set. When the operator selects the "emergency large flow mode" on the display interface, the controller automatically raises the upper limit of the flow rate of the flow rate unit for the first liquid tube to 800 ml / min, and simultaneously increases the power of the electromagnetic heating unit to 1500 W to ensure that the flowing liquid medicine can complete a rapid temperature rise from 20°C to 40°C within 5 seconds. Real-time data fusion: After reading the temperature data (such as 25°C) of the front temperature sensor at the front temperature measurement point, combined with the target temperature (45°C) and the real-time flow rate (500 ml / min), the initial heating power of the electromagnetic heating unit (such as 1200 W) is calculated through the PID algorithm, and the matching of the electromagnetic frequency (such as 22 kHz) and the current intensity (such as 15 A) is completed within 0.2 seconds.

[0139] Compared with traditional open-loop heating control (fixed power output), dynamic power matching reduces energy consumption during the heating-up stage by 35% and reduces the temperature fluctuation of the liquid medicine during the constant temperature stage by 70%; it also supports rapid response to emergency scenarios. For example, when emergency lavage is required for massive abdominal hemorrhage, the system can switch to the "emergency mode" within 3 seconds to achieve the output of heated liquid medicine or normal saline with a flow rate of 1 L / min and a temperature of 42°C.

[0140] (3)Temperature-pressure double closed-loop control (S5.3 - S7) Temperature disturbance compensation: When the rear temperature sensor at the rear temperature measurement point detects that the actual temperature deviates from the target value ≥ 0.3°C, the controller starts the disturbance rejection algorithm: If it is an instantaneous fluctuation (such as a temperature drop of 0.5°C caused by air bubbles entering the metal tube), the heating power is automatically increased by 10% and maintained for 3 seconds; If it is a trend deviation (such as insufficient temperature rise for 5 consecutive seconds), the tube wall scaling compensation coefficient is triggered (such as an additional increase in power by 5%).

[0141] Pressure adaptive adjustment: The intracavity pressure measurement unit uploads pressure data every 0.1 second. When the pressure exceeds the threshold (such as 0.8 kPa), the controller simultaneously executes: reducing the flushing flow rate (such as stepping down from 500 ml / min to 400 ml / min); increasing the recovery flow rate (from 475 ml / min to 500 ml / min); If the pressure continuously exceeds the standard for more than 5 seconds, start the emergency pressure relief procedure, increase the recovery flow rate through the recovery volume control unit for emergency response; if the high pressure continues to persist, it can be prompted through the screen or given an audible and visual alarm by the warning unit to remind that manual intervention is required, and emergency pressure relief is carried out by inserting a suction tool.

[0142] (4)Perfusion volume - time collaborative management (S8 - S9) Dynamic perfusion balance: The controller can calculate the deviation between the "theoretical perfusion volume" (cumulative inflow volume - outflow volume) and the "actual measured value of the intracavitary fluid volume" every 2 seconds. When the deviation > 50 ml, automatically correct the recovery flow rate (such as controlling the recovery volume control unit to increase the recovery flow rate by 5%); Intelligent early warning of remaining fluid volume: Based on the remaining fluid volume in the liquid - carrying container (such as 2 L) and the current flow rate (500 ml / min), accurately predict the remaining available time (4 minutes), and start the "descending protocol" (the flow rate decreases by 50 ml / min every 10 seconds) 1 minute before exhaustion, reserving an operation window for replacing the liquid to avoid treatment interruption.

[0143] During long - term surgeries (such as peritoneal abscess irrigation for > 3 hours), the fluid volume management error is reduced from ±500 ml of traditional manual estimation to ±50 ml; through the dual - threshold determination of time - volume, the unplanned shutdown rate caused by fluid volume exhaustion is reduced from 18% to 0.5%.

[0144] (5)Safe termination and data closed - loop (S10 - S11) Gradient cooling protection: At the end of the treatment, the controller maintains a flow rate of 200 ml / min and gradually reduces the thermal power of the electromagnetic heating unit (from 1000 W to 200 W), so that the temperature of the residual liquid in the pipeline slowly drops from 40 °C to 35 °C to avoid scalding.

[0145] By applying the above - mentioned control method, the continuous warming and flushing device realizes: Full - process automation: Break through the limitations of the traditional warming and flushing device's phased manual control of heating, flushing flow rate, flushing volume, flushing pressure, recovery flow rate, and recovery volume, and achieve a one - key operation of "set and run"; Intelligent anti - interference ability: Through multi - sensor data fusion and adaptive algorithms, maintain the stability of parameters such as temperature, flushing volume, and flushing pressure of the warming and flushing treatment in complex clinical scenarios (such as patient body movement, sudden change in the viscosity of the liquid medicine).

[0146] The technical features of the above - mentioned embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above - mentioned embodiments are described.

Claims

1. A device for continuously heating and flushing body fluids or inflammatory substances in a cavity, characterized in that: It comprises a first liquid pipe, on which a front temperature measuring point and a flow rate unit are sequentially arranged along the direction of liquid flow, and two ends of the first liquid pipe are connected to a liquid-carrying container loaded with liquid to be heated and a metal hollow pipe; and an electromagnetic heating unit for heating the metal hollow tube by electromagnetic induction and heating the liquid flowing through the metal hollow tube; and a second liquid pipe, the second liquid pipe is connected to the metal hollow pipe 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 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, so that the second liquid tube and the third liquid tube can be flushed in the body cavity in a constant temperature and constant pressure manner.

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: The flow rate unit includes a flushing flow rate control component and a flushing flow rate monitoring component. 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 pipe.

4. The continuous heating and flushing device according to claim 3, characterized in that: 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.

5. The continuous heating and flushing device according to claim 4, characterized in that: The controller is used to receive data of a set liquid target flow rate and a liquid target temperature, and control: Before running the heating flushing, the volume data of the liquid in the liquid-carrying container and the temperature data of the liquid before heating are measured by the front temperature measuring point are read through the capacity detection unit, and the heating power required by the electromagnetic heating unit to heat the liquid flowing through to reach the target temperature of the liquid is calculated by using an algorithm; After the heating flushing is performed, the heating effect of the liquid is monitored by using the post-heating temperature feedback mechanism formed by the post-temperature measurement point and the intracavitary temperature measurement unit; then, according to the liquid heating state, the actual heating power of the metal hollow tube to the liquid flowing through is calculated by an algorithm, and the heating power required to be adjusted by the electromagnetic heating unit is calculated by an algorithm, and finally the liquid is quickly heated to the set target temperature, and 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 flushing flow rate control component and the recovery flow rate control component are controlled using data calculated by the algorithm 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.

6. The continuous heating and flushing device according to claim 4, 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 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 out data containing warnings in advance.

7. The continuous heating and flushing device according to any one of claims 1 to 5, characterized in that: The metal hollow tube is in the shape of a coil tube which is wound in multiple circles, and the metal hollow tube is a stainless steel hollow tube.

8. The continuous heating and flushing device according to claim 5, 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.

9. The continuous heating and flushing device according to claim 5, characterized in that: The first liquid pipe and the metal hollow pipe are disposable pipes or reusable pipes.

10. The continuous heating and flushing device according to claim 8, characterized in that: When the first liquid pipe and the metal hollow pipe are circulating and repetitive pipes, an anti-reversal unit is installed on the second liquid pipe.

11. The continuous heating and flushing device according to claim 10, characterized in that: The anti-reverse unit is a single anti-reverse valve, or a combination of multiple anti-reverse valves and disposable connectors.

12. 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 10, wherein the control unit is electrically connected to the controller for performing human-computer interactive control of the continuous heating and flushing device when it is running, and sending data to the controller or receiving data returned by the controller.

13. The control component according to claim 12, 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.

14. The control component according to claim 13, characterized in that: The control unit is a touch display screen that integrates the input module and the display module.

15. 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 10, 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.

16. A control method, characterized in that: The method comprises the continuous heating and flushing device according to any one of claims 1 to 10 and the following control steps: S1, start; S2, equipment initialization check; 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; S4, the controller receives the set operation data and reads the real-time operation data; S4.

1. Set the flow rate, target temperature, filling volume and operation time of the continuous heating and flushing device; S4.2, the controller reads the real-time temperature, capacity, flow rate, filling volume, pressure and time data and records them; S5, continuous heating and flushing device operation; S5.1, the liquid begins to flow along the pipe; S5.2, the electromagnetic heating unit starts to work and heats the liquid; S5.3, liquid temperature control; 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; S7, fluid flows into the body cavity; Determine whether the body cavity pressure is normal; if it is, continue to let the liquid flow into the body cavity; If not, stop the liquid flow; S8, executed simultaneously with step S7, the liquid flows out of the body cavity; S9, liquid collection; 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 the body cavity perfusion volume control; Executed simultaneously with the body cavity perfusion volume control, the volume of the heated liquid and the treatment time are determined; if it is determined that the liquid volume is sufficient or the heated flushing treatment is not over, execute step S4.2; if it is determined that the liquid volume is insufficient or the heated flushing treatment is over, stop the liquid flow; S10, the electromagnetic heating unit stops working; S11. End.

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