Intelligent Temperature-Controlled Dual-Circulation Ventricular Washing System and Method Based on Dynamic Pressure Feedback

Abstract

This invention provides an intelligent temperature-controlled dual-circulation ventricular irrigation system and method based on dynamic pressure feedback. The system includes a temperature-controlled water inlet device, a dual-circulation irrigation conduit, and a balloon-type pressure buffer. The dual-circulation irrigation conduit contains a centrally located sensing chamber and flushing and drainage chambers surrounding it on either side. Pressure and temperature sensors are installed within the sensing chambers. The outlet of the temperature-controlled water inlet device is connected to the beginning of the flushing chamber, and the beginning of the drainage chamber is used to connect to an external drainage device. The balloon-type pressure buffer is located at the end of the dual-circulation irrigation conduit, which is placed in the patient's ventricle. This invention improves the efficiency and safety of ventricular irrigation.

Description

Technical Field

[0001] This invention relates to the field of medical technology, and in particular to an intelligent temperature-controlled dual-circulation ventricular lavage system and method based on dynamic pressure feedback. Background Technology

[0002] Ventricular infection, as a neurosurgical emergency and critical condition, faces multiple technical bottlenecks in its clinical treatment: traditional ventricular drainage relies on passive drainage mechanisms, which are difficult to effectively remove purulent secretions and stubborn biofilms, such as the problem of dense biofilm adhesion formed by Pseudomonas aeruginosa; antibiotic treatment is limited by the blood-brain barrier penetration efficiency (<10%) and the risk of neurotoxicity (such as the serious complications such as epilepsy induced by vancomycin cerebrospinal fluid concentration >40μg / mL), resulting in a narrow safe concentration window for local irrigation; the reinfection rate 30 days after surgery is as high as 15%-25%, mainly due to residual dead space in the drainage and incomplete removal of biofilms.

[0003] These factors combined contribute to the persistently high mortality rate of ventricular infections, highlighting the urgent need to develop new, intelligent treatment systems. Summary of the Invention

[0004] To address the aforementioned problems in the prior art, this invention provides an intelligent temperature-controlled dual-circulation ventricular lavage system and method based on dynamic pressure feedback, which improves the efficiency and safety of ventricular lavage.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] In a first aspect, the present invention provides an intelligent temperature-controlled dual-circulation ventricular lavage system based on dynamic pressure feedback, comprising a temperature-controlled water inlet device, a dual-circulation lavage conduit, and a balloon-type pressure buffer. The dual-circulation lavage conduit is provided with a centrally located sensing chamber and a flushing chamber and a drainage chamber surrounding both sides of the sensing chamber. The sensing chamber is provided with a pressure sensor and a temperature sensor.

[0007] The outlet of the temperature-controlled water inlet device is connected to the beginning of the flushing chamber. The beginning of the drainage chamber is used to connect to an external drainage device. The balloon-type pressure buffer is located at the end of the dual-circulation rinsing catheter, and the end of the dual-circulation rinsing catheter is used to place in the patient's ventricle.

[0008] The beneficial effects of this invention are as follows: the three-lumen structure of the dual-circulation rinsing catheter enables dual-circulation rinsing in the rinsing chamber and the drainage chamber, thereby improving the efficiency of ventricular rinsing; the water temperature is controlled by a temperature-controlled water inlet device, and pressure feedback compensation is performed by a pressure sensor and a balloon-type pressure buffer, avoiding surgical risks caused by excessive water temperature deviation or excessive intracranial pressure, thereby improving the safety of ventricular rinsing.

[0009] Optionally, the temperature-controlled water inlet device includes an inlet pipe, a preheater, a heating wire, and a temperature-compensating micropump. The preheater is sleeved on the inlet of the inlet pipe, the heating wire is wrapped around the outside of the pipe wall, and the temperature-compensating micropump is located inside the inlet pipe and communicates with the outlet of the inlet pipe.

[0010] As described above, a three-level redundant temperature control system is used to ensure precise control of the rinsing water temperature.

[0011] Optionally, a switch is provided on both the inlet and outlet of the water inlet pipe.

[0012] Optionally, the pressure sensor and temperature sensor are optical fiber sensors that integrate pressure and temperature measurement.

[0013] Optionally, a spiral guide groove is provided inside the flushing chamber.

[0014] Optionally, an anti-backflow valve is provided on the drainage cavity near the beginning.

[0015] In a second aspect, the present invention provides an intelligent temperature-controlled dual-circulation ventricular lavage method based on dynamic pressure feedback, using the intelligent temperature-controlled dual-circulation ventricular lavage system based on dynamic pressure feedback of the first aspect, comprising the following steps:

[0016] S1. Under neuronavigation, a dual-circulation lavage catheter is implanted into the patient's ventricle, and a preset buffer solution is injected into the balloon-type pressure buffer to establish a pressure buffer.

[0017] S2. Water is injected into the flushing chamber through the temperature-controlled water inlet device to flush the patient's ventricles. The cerebrospinal fluid in the patient's ventricles is drained through the drainage chamber to achieve double-circulation rinsing.

[0018] S3. Pressure is monitored by a pressure sensor, and the flow rate in the balloon-type pressure buffer and the dual-circulation rinsing tube is adjusted according to the detected real-time pressure.

[0019] S4. Temperature is monitored by a temperature sensor, and the temperature-controlled water inlet device is adjusted according to the detected real-time temperature.

[0020] Optionally, step S3 includes:

[0021] Obtain the target pressure P_target, and set the initial flow rate Q_base of the dual-circulation rinsing catheter and the initial volume of the buffer solution in the balloon pressure buffer according to the target pressure;

[0022] Pressure is monitored by a pressure sensor to obtain the real-time pressure P(t). It is then determined whether the difference between the real-time pressure and the target pressure exceeds a preset pressure difference. If so, the pressure PID regulator is activated; otherwise, the regulating flow rate Q(t) is obtained according to the pressure-flow rate dynamic model. The real-time flow rate of the dual-circulation handwashing duct is adjusted based on this regulating flow rate. The formula for the pressure-flow rate dynamic model is:

[0023] Q(t)=Q_base×[1-0.03×(P(t)-P_target)].

[0024] Optionally, step S3 further includes:

[0025] The real-time pressure, along with the patient's heart rate and respiratory rate, are input into an intracranial pressure prediction model based on an LSTM neural network to predict the pressure. The predicted pressure is then used to update the intracranial pressure baseline value P_baseline.

[0026] The safe intracranial pressure value P_safe is obtained based on the dynamic adjustment model of the safe pressure range and the intracranial pressure baseline value P_baseline. The formula is as follows:

[0027] P_safe=0.8×P_baseline+0.2×P(t);

[0028] Determine whether the real-time pressure P(t) is greater than a preset coefficient multiplied by the safe intracranial pressure value P_safe. If so, trigger emergency decompression to adjust the balloon-type pressure buffer.

[0029] Optionally, step S4 includes:

[0030] The target temperature is obtained, and the heating temperature of the preheater and the heating wire in the temperature-controlled water inlet device are set according to the target temperature. The temperature compensation micropump in the temperature-controlled water inlet device is regulated based on PID.

[0031] Temperature is monitored by a temperature sensor to obtain the real-time temperature. If the real-time temperature is greater than the upper temperature limit, the liquid cooling cycle is started. Otherwise, if the real-time temperature is less than the lower temperature limit, the emergency heating mode is activated to regulate the temperature-controlled water inlet device.

[0032] The technical effects of the intelligent temperature-controlled dual-circulation ventricular lavage method based on dynamic pressure feedback provided in the second aspect are described in the relevant description of the intelligent temperature-controlled dual-circulation ventricular lavage system based on dynamic pressure feedback provided in the first aspect. Attached Figure Description

[0033] Figure 1This is a cross-sectional schematic diagram of the dual-circulation rinsing tube and the balloon-type pressure buffer used in conjunction with an embodiment of the present invention;

[0034] Figure 2 This is a schematic longitudinal section of the dual-circulation handwashing conduit according to an embodiment of the present invention;

[0035] Figure 3 This is a longitudinal cross-sectional schematic diagram of the temperature-controlled water inlet device according to an embodiment of the present invention;

[0036] Figure 4 This is a schematic flowchart of the intelligent temperature-controlled dual-circulation ventricular lavage method based on dynamic pressure feedback, according to an embodiment of the present invention.

[0037] Figure 5 This is a schematic diagram of the pressure control process according to an embodiment of the present invention;

[0038] Figure 6 This is a schematic diagram of the temperature control process according to an embodiment of the present invention.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Temperature-controlled water inlet device; 11. Water outlet; 12. Water outlet switch; 13. Preheater; 14. Washer; 15. Heating wire; 16. Water inlet pipe; 17. Temperature-compensated micropump; 18. Water outlet; 19. Water outlet switch;

[0041] 2. Dual-circulation rinsing catheter; 21. Sensing chamber; 22. Flushing chamber; 23. Drainage chamber;

[0042] 3. Balloon-type pressure buffer. Detailed Implementation

[0043] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0044] Example 1

[0045] Please refer to Figures 1 to 3 The intelligent temperature-controlled dual-circulation ventricular sitz bath system based on dynamic pressure feedback includes a temperature-controlled water inlet device, a dual-circulation sitz bath tubing, and a balloon-type pressure buffer.

[0046] like Figure 1 and Figure 2As shown, the dual-circulation rinsing conduit contains a centrally located sensing chamber and flushing and drainage chambers surrounding it on either side. The sensing chamber houses a pressure sensor and a temperature sensor. In this embodiment, the pressure and temperature sensors are integrated into a single fiber optic sensor. The fiber optic sensor has a pressure range of 0-30 cmH2O and an accuracy of ±0.5 cmH2O.

[0047] The balloon-type pressure buffer is installed at the end of the dual-circulation rinsing tubing. In this embodiment, the function of the balloon-type pressure buffer is to control the pressure of the buffer solution.

[0048] In this embodiment, a spiral guide groove is provided inside the flushing chamber, with a pitch of 1.5 mm and a groove depth of 0.2 mm, which can reduce flow resistance. An anti-backflow valve is provided on the drainage chamber near the beginning. Figure 2 The flushing chamber and drainage chamber shown in the diagram have the same longitudinal cross-sectional area within the dual-circulation rinsing conduit. However, in this embodiment, the longitudinal cross-sectional area of ​​the drainage chamber within the dual-circulation rinsing conduit is larger than that of the flushing chamber. Therefore, the aforementioned three-lumen conduit structure can improve flushing efficiency.

[0049] like Figure 3 As shown, the temperature-controlled water inlet device includes an inlet pipe, a preheater, a heating wire, and a temperature-compensating micropump. The preheater is fitted onto the inlet of the inlet pipe, and the heating wire is wrapped around the outside of the inlet pipe wall. The temperature-compensating micropump is located inside the inlet pipe and connected to the outlet of the inlet pipe. The power density of the heating wire wrapped around the inlet pipe wall is 0.5 W / cm², the linewidth is 50 μm, and the spacing is 200 μm. Thus, through three-stage redundant temperature control, precise control of the rinsing water temperature is ensured.

[0050] In this embodiment, an inlet switch is provided on the inlet of the water inlet pipe, and an outlet switch is provided on the outlet.

[0051] Therefore, in this embodiment, the outlet of the temperature-controlled water inlet device is connected to the beginning of the flushing chamber, the beginning of the drainage chamber is used to connect to an external drainage device, and the end of the dual-circulation rinsing catheter is used to place in the patient's ventricle, thereby realizing dual-circulation rinsing.

[0052] Example 2

[0053] Please refer to Figure 4 The intelligent temperature-controlled dual-circulation ventricular lavage method based on dynamic pressure feedback, using the intelligent temperature-controlled dual-circulation ventricular lavage system based on dynamic pressure feedback from Example 1, includes the following steps:

[0054] S1. Under neuronavigation, a dual-circulation lavage catheter is implanted into the patient's ventricle, and a pre-set buffer solution is injected into the balloon-type pressure buffer to establish a pressure buffer.

[0055] In this embodiment, the buffer solution is a 0.9% NaCl solution.

[0056] S2. Water is injected into the flushing chamber through the temperature-controlled water inlet device to flush the patient's ventricles. Cerebrospinal fluid in the patient's ventricles is drained through the drainage chamber to achieve double-circulation rinsing.

[0057] The temperature-controlled water inlet device regulates the temperature according to the target temperature, as detailed in step S4. In this embodiment, the target temperature is 37°C.

[0058] S3. Pressure is monitored by a pressure sensor, and the flow rate in the balloon-type pressure buffer and the dual-circulation rinsing tube is adjusted according to the detected real-time pressure.

[0059] Reference Figure 5 It can be seen that step S3 includes:

[0060] S31. Obtain the target pressure P_target, and set the initial flow rate Q_base of the dual-circulation rinsing catheter and the initial volume of the buffer solution in the balloon pressure buffer according to the target pressure.

[0061] In this embodiment, the target pressure P_target is 15 cmH2O, the initial flow rate Q_base is 0.5 mL / min, and the volume of the balloon-type pressure buffer is 0.5 mL ± 0.1 mL.

[0062] S32. Pressure is monitored using a pressure sensor to obtain the real-time pressure P(t). It is determined whether the difference between the real-time pressure and the target pressure exceeds a preset pressure difference. If so, the pressure PID controller is activated; otherwise, the regulating flow rate Q(t) is obtained according to the pressure-flow rate dynamic model. The real-time flow rate of the dual-circulation rinsing duct is adjusted based on the regulating flow rate. The formula for the pressure-flow rate dynamic model is:

[0063] Q(t)=Q_base×[1-0.03×(P(t)-P_target)].

[0064] The pressure PID controller acts on the water pump supplying the water. It regulates the error signal through a linear combination of proportional (P), integral (I), and derivative (D) components. The PID output formula for the continuous system is:

[0065] ;

[0066] Where e(t) is the system deviation of the continuous system, that is, the difference between the set value and the actual output value. Therefore, after discretization, it is suitable for microprocessor implementation and can be set through the panel or communication interface. , , .

[0067] The flushing flow rate of the dual-circulation rinsing tubing is adjustable from 0.1 to 1 mL / min, with an accuracy of ±0.05 mL / min. The pressure PID regulator is activated when |P(t)-P_target|>3 cmH2O; therefore, the preset pressure difference in this embodiment is 3 cmH2O.

[0068] Reference Figure 5 It can be seen that when the pressure sensor detects that P exceeds 18 cmH2O, which is more than 3 cmH2O, the pressure PID controller is activated, reducing the flow rate to 0.3 mL / min and activating the liquid cooling cycle to maintain temperature stability. When the real-time pressure recovers to 14 cmH2O, the flow rate gradually increases back to 0.4 mL / min. At this point, the flow rate is further adjusted according to the pressure-flow rate dynamic model, gradually increasing it back to 0.5 mL / min.

[0069] S33. Input the real-time pressure, patient's heart rate and respiratory rate into the intracranial pressure prediction model based on LSTM neural network to predict the pressure, obtain the predicted pressure, and update the intracranial pressure baseline value P_baseline according to the predicted pressure.

[0070] The intracranial pressure prediction model in this embodiment is used to predict the trend of intracranial pressure changes. The model establishment process is as follows:

[0071] (1) Data preprocessing. This includes normalizing input parameters such as pressure, heart rate, and respiratory rate, and dividing time series data into fixed-length windows, such as 30 minutes / window.

[0072] (2) Network structure design. It includes an input layer with a dimension of time step * number of features, an LSTM layer, and an output layer for predicting intracranial pressure.

[0073] LSTM stands for Long Short-Term Memory.

[0074] (3) Model training. Mean-square error (MSE) is used as the loss function, and the stochastic gradient descent (SGD) optimizer is used to obtain the model weights through backpropagation.

[0075] (4) Real-time prediction. The trained model is used for inference to predict intracranial pressure, and the mean absolute error (MAE) and R are calculated. 2 (R-squared, coefficient of determination) assesses the accuracy of predictions.

[0076] Among them, the intracranial pressure baseline value P_baseline refers to the stable intracranial pressure (ICP) of the patient at rest, which reflects the individual's normal physiological state. For example, in clinical practice, ICP>30cmH2O indicates intracranial hypertension.

[0077] Therefore, this embodiment dynamically corrects the intracranial pressure baseline value P_baseline based on the predicted pressure obtained from the intracranial pressure prediction model. Specifically, this embodiment identifies the fluctuation pattern of the intracranial pressure baseline value P_baseline through long-term memory dependence, such as circadian rhythms, distinguishes between physiological and pathological intracranial pressure fluctuations, and predicts the trend of intracranial pressure changes. That is, the deviation of intracranial pressure relative to the intracranial pressure baseline value P_baseline, thereby dynamically correcting and updating the intracranial pressure baseline value P_baseline.

[0078] S34. Based on the dynamic adjustment model of the pressure safety zone and the intracranial pressure baseline value P_baseline, the safe intracranial pressure value P_safe is obtained, and its formula is:

[0079] P_safe=0.8×P_baseline+0.2×P(t).

[0080] S35. Determine whether the real-time pressure P(t) is greater than the preset coefficient multiplied by the safe intracranial pressure value P_safe. If so, trigger emergency depressurization to adjust the balloon-type pressure buffer.

[0081] In this embodiment, the preset coefficient is 120%. In other embodiments, the preset coefficient ranges from 108% to 130%.

[0082] S4. Temperature is monitored by a temperature sensor, and the temperature-controlled water inlet device is adjusted according to the detected real-time temperature.

[0083] The fiber optic sensor uses a sampling frequency of 100Hz for pressure and temperature monitoring.

[0084] Reference Figure 6 It can be seen that step S4 includes:

[0085] S41. Obtain the target temperature, set the heating temperature of the preheater and the heating temperature of the heating wire in the temperature-controlled water inlet device according to the target temperature, and regulate the temperature compensation micro-pump in the temperature-controlled water inlet device based on PID.

[0086] The target temperature in this embodiment is 37℃, so the heating temperature of the preheater and the heating wire are set to 37℃±0.2℃. The PID parameters of the temperature-compensated micropump are Kp=1.2, Ki=0.05, and Kd=0.3.

[0087] S42. The temperature is monitored by a temperature sensor to obtain the real-time temperature. If the real-time temperature is greater than the upper temperature limit, the liquid cooling cycle is started. Otherwise, the real-time temperature is checked to see if it is less than the lower temperature limit. If so, the emergency heating mode is activated to regulate the temperature-controlled water inlet device.

[0088] In this embodiment, the upper temperature limit is 37.8°C and the lower temperature limit is 36.5°C. In other equivalent embodiments, the upper temperature limit can be 37.3-38.0°C and the lower temperature limit can be 36.0-36.7°C.

[0089] The liquid cooling circulation is designed with a dual circulation system: a low-temperature liquid is introduced into the flushing chamber and flows out through the drainage chamber. Through heat exchange with the liquid medium, heat transfer is completed, thus achieving liquid cooling circulation.

[0090] According to the medical and clinical neurology journal Neurosurgery 2023, "clinical data showed that a fixed irrigation rate resulted in intracranial pressure >25 cmH2O in 15% of cases," and the academic journal J Neuroeng Rehabil 2021, which focuses on neuroengineering and rehabilitation engineering, "each 1°C deviation in temperature increases the risk of epilepsy by 18%." It is clear that the fixed irrigation rate and fluctuations in irrigation temperature in the prior art can affect the safety of the procedure. Therefore, this embodiment not only improves the efficiency of ventricular irrigation through the three-lumen structure of the dual-circulation irrigation catheter, but also improves the safety of ventricular irrigation through temperature and pressure regulation.

[0091] Since the systems / devices described in the above embodiments of the present invention are systems / devices used to implement the methods of the above embodiments of the present invention, those skilled in the art can understand the specific structure and modifications of the systems / devices based on the methods described in the above embodiments of the present invention, and therefore will not be repeated here. All systems / devices used in the methods of the above embodiments of the present invention fall within the scope of protection of the present invention.

[0092] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, apparatus, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0093] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (devices), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, as well as combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions.

[0094] It should be noted that any reference numerals placed between parentheses in the claims should not be construed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claims. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. The invention can be implemented by means of hardware comprising several different components and by means of a suitably programmed computer. In claims that enumerate several means, several of these means may be embodied by the same hardware. The use of the terms first, second, third, etc., is merely for convenience of expression and does not indicate any order. These terms can be understood as part of the component names.

[0095] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0096] Furthermore, it should be noted that in the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0097] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the claims should be interpreted to include both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0098] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, then this invention should also include these modifications and variations.

Claims

1. An intelligent temperature-controlled dual-circulation ventricular lavage system based on dynamic pressure feedback, characterized in that, The device includes a temperature-controlled water inlet device, a dual-circulation handwashing conduit, and a balloon-type pressure buffer. The dual-circulation handwashing conduit has a centrally located sensing chamber and a flushing chamber and a drainage chamber surrounding the sensing chamber on both sides. The sensing chamber is equipped with a pressure sensor and a temperature sensor. The pressure sensor monitors the pressure and regulates the flow rate in the balloon-type pressure buffer and the dual-circulation handwashing conduit based on the detected real-time pressure. The temperature sensor monitors the temperature and regulates the temperature-controlled water inlet device based on the detected real-time temperature. The outlet of the temperature-controlled water inlet device is connected to the beginning of the flushing chamber. The beginning of the drainage chamber is used to connect to an external drainage device. The balloon-type pressure buffer is set at the end of the dual-circulation rinsing catheter. The end of the dual-circulation rinsing catheter is used to place in the patient's ventricle. The temperature-controlled water inlet device includes an inlet pipe, a preheater, a heating wire, and a temperature-compensating micropump. The preheater is sleeved on the inlet of the inlet pipe, the heating wire is wrapped around the outside of the pipe wall, and the temperature-compensating micropump is located inside the inlet pipe and connected to the outlet of the inlet pipe. The heating temperature of the preheater and the heating temperature of the heating wire in the temperature-controlled water inlet device are set according to the target temperature, and the temperature-compensating micropump in the temperature-controlled water inlet device is regulated based on PID control. The method of monitoring pressure using a pressure sensor and regulating the flow rate within the balloon-type pressure buffer and the dual-circulation rinsing tube based on the detected real-time pressure includes: Obtain the target pressure P_target, and set the initial flow rate Q_base of the dual-circulation rinsing catheter and the initial volume of the buffer solution in the balloon pressure buffer according to the target pressure; Pressure is monitored by a pressure sensor to obtain the real-time pressure P(t). It is then determined whether the difference between the real-time pressure and the target pressure exceeds a preset pressure difference. If so, the pressure PID regulator is activated; otherwise, the regulating flow rate Q(t) is obtained according to the pressure-flow rate dynamic model. The real-time flow rate of the dual-circulation handwashing duct is adjusted based on this regulating flow rate. The formula for the pressure-flow rate dynamic model is: Q(t) = Q_base× [1 - 0.03×(P(t)-P_target)]; The real-time pressure, along with the patient's heart rate and respiratory rate, are input into an intracranial pressure prediction model based on an LSTM neural network to predict the pressure. The predicted pressure is then used to update the intracranial pressure baseline value P_baseline. The safe intracranial pressure value P_safe is obtained based on the dynamic adjustment model of the safe pressure range and the intracranial pressure baseline value P_baseline. The formula is as follows: P_safe = 0.8×P_baseline + 0.2×P(t); Determine whether the real-time pressure P(t) is greater than a preset coefficient multiplied by the safe intracranial pressure value P_safe. If so, trigger emergency decompression to adjust the balloon-type pressure buffer.

2. The intelligent temperature-controlled dual-circulation ventricular lavage system based on dynamic pressure feedback according to claim 1, characterized in that, Switches are installed on both the inlet and outlet of the water inlet pipe.

3. The intelligent temperature-controlled dual-circulation ventricular lavage system based on dynamic pressure feedback according to claim 2, characterized in that, The pressure sensor and temperature sensor are optical fiber sensors that integrate pressure measurement and temperature measurement.

4. The intelligent temperature-controlled dual-circulation ventricular lavage system based on dynamic pressure feedback according to claim 1, characterized in that, The flushing chamber is equipped with a spiral guide groove.

5. The intelligent temperature-controlled dual-circulation ventricular lavage system based on dynamic pressure feedback according to claim 1, characterized in that, An anti-backflow valve is provided on the drainage cavity near the beginning.

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