Cavity pressure and temperature cooperative control method and system and perfusion equipment

Abstract

The invention relates to the technical field of medical instruments, in particular to a cavity pressure and temperature cooperative control method, a cavity pressure and temperature cooperative control system and perfusion equipment. The control module increases the suction flow of the suction device according to the temperature error so as to reduce the actual temperature in the operation cavity; and the control module increases the perfusion flow of the perfusion device based on the pressure change amount in the operation cavity caused by the increase of the suction flow so as to compensate the pressure in the operation cavity.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a method and system for coordinated control of cavity pressure and temperature, and an infusion device. Background Technology

[0002] In surgical procedures such as percutaneous nephrolithotomy (PCNL) PCNL During surgery, a perfusion system is needed to continuously infuse the surgical cavity (such as the renal pelvis) with fluids such as saline to maintain cavity expansion and provide a clear view. Simultaneously, a suction system removes waste fluid mixed with tissue debris, blood, and stones. Maintaining stable intracavitary pressure is crucial for protecting sensitive tissues (such as the kidneys), while temperature control is necessary to prevent thermal damage.

[0003] Existing surgical perfusion and aspiration systems generally employ a "perfusion-driven" control strategy. When the intracavitary temperature rises, the system first cools the area by increasing the perfusion flow rate. This traditional method has significant drawbacks: directly increasing perfusion can instantly cause an increase in intracavitary pressure, potentially leading to pressure shock damage to sensitive tissues; furthermore, the pattern of perfusion first, followed by passive aspiration, is insufficient to quickly remove impurities generated during surgery, resulting in a blurred surgical field; moreover, performing perfusion first disrupts the original flow balance, requiring the system to readjust aspiration to stabilize pressure, creating a repetitive coupling of "perfusion-aspiration" regulation that can easily cause system oscillations and poor control quality.

[0004] Therefore, the existing technology has the technical problem that adopting a "perfusion-driven" control strategy can instantly lead to an increase in intracavitary pressure.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present invention, and therefore, the above description is not considered to constitute prior art information. Summary of the Invention

[0006] The purpose of this invention is to provide a method and system for coordinated control of cavity pressure and temperature.

[0007] To address the aforementioned technical problems, this invention provides a method for coordinated control of cavity pressure and temperature, comprising: When the actual temperature inside the surgical cavity rises to a point where the temperature difference from the target safe temperature exceeds a preset temperature difference value, the control module increases the suction flow rate of the suction device based on the temperature error to reduce the actual temperature inside the surgical cavity; and The control module increases the perfusion flow rate of the perfusion device based on the pressure change in the surgical cavity caused by the increase in suction flow rate, in order to compensate for the pressure in the surgical cavity.

[0008] Furthermore, the control module increases the suction flow rate of the suction device based on the temperature error, including: The temperature error between the actual temperature inside the surgical cavity and the target safe temperature. e _ t ,and e _ t = current _ t - target _ t ; Temperature error e _ t When the temperature difference exceeds the preset value, the temperature error is determined accordingly. e _ t The increased suction flow required to obtain the suction device attraction _ flow _ adjust ,and attraction _ flow _ adjust = K _ t _ att * e _ t ; in: current _ t This is the actual temperature. target _ t For the target safe temperature, K _ t _ att The proportionality coefficient for attracting flow rate based on temperature error.

[0009] Furthermore, the increased traffic attraction is attraction _ x ,and attraction _ x = attraction _ flow _ adjust + base _ attraction _ flow ; in: base _ attraction _ flow This is the preset base value for attracting traffic.

[0010] Furthermore, the control module increases the infusion flow rate of the infusion device based on the suction flow rate, including: Increase the attraction flow as needed attraction _ flow _ adjust Estimate pressure changes; The expected pressure is obtained based on the pressure change; and The control module increases the infusion flow rate of the infusion device based on the pressure error between the expected pressure and the target cavity pressure.

[0011] Furthermore, the pressure change is Pb ,and Pb = - K _ p _ att * attraction _ flow _ adjust ; Expected pressure is Py ,and Py = current _ p + Pb ; The pressure error between the expected pressure and the target cavity pressure is x _ p ,and x _ p = target _ p - Py ; The injection flow rate that needs to be increased for the injection device is p _ pid _ output ,and p _ pid _ output = Kp _ p * x _ p + Ki _ p * Σ i + Kd _ p * ( x _ p - e _ p ); in: K _ p _ att The pressure is a proportionality coefficient based on the change in suction flow rate; current _ p This refers to the actual pressure inside the surgical cavity; target _ p The target cavity pressure; e _ p This represents the pressure error between the actual pressure and the target cavity pressure. Kp _ p , Ki _ p , Kd _ pPressure is applied to the control module respectively. PID The proportional, integral, and derivative parameters of the control; Σ i Customize the integral pressure item value.

[0012] Furthermore, the compensated perfusion flow rate is perfusion _ x ,and perfusion _ x = p _ pid _ output + base _ perfusion _ flow ; in: base _ perfusion _ flow This is the preset base value for the injection flow rate.

[0013] In another aspect, the present invention also provides a cavity pressure and temperature coordinated control system for implementing the above method, comprising: an infusion device, the infusion device being configured to include: The temperature regulation module is configured to increase the suction flow rate of the suction device according to the temperature error when the actual temperature in the surgical cavity rises to the point where the temperature error between the actual temperature and the target safe temperature exceeds a preset temperature difference value, so as to reduce the actual temperature in the surgical cavity. The pressure regulation module is configured to increase the perfusion flow rate of the perfusion device based on the pressure change within the surgical cavity caused by the increase in suction flow rate, in order to compensate for the pressure within the surgical cavity.

[0014] Thirdly, the present invention also provides a non-transitory device-readable storage medium storing instructions that, when executed by a processor, cause the processor to perform the cavity pressure and temperature coordinated control method as described above.

[0015] Fourthly, the present invention also provides a device program product, including instructions that, when executed by a processor, cause the processor to perform the cavity pressure and temperature coordinated control method as described above. The beneficial effects of this invention are as follows: The cavity pressure and temperature coordinated control method of this invention, through a "suction priority" strategy, first increases the suction flow rate through the control module when the actual temperature in the surgical cavity rises to a point where the temperature error between the actual temperature and the target safe temperature exceeds a preset temperature difference value. This reduces the actual temperature in the surgical cavity while instantly removing powder and impurities, providing a continuously clear surgical field of vision and significantly improving surgical efficiency and safety. Furthermore, the "suction first" strategy reduces the cavity pressure first, providing a safe buffer for subsequent pressure compensation and completely avoiding the risk of damage to human tissues caused by pressure peaks that may occur with the traditional "infusion first" approach. In addition, through intelligent decoupled control of "suction-led, infusion-following", the complex multivariate control problem of pressure-temperature-flow rate is simplified into a coordinated control with clear primary and secondary aspects, achieving precise and stable cavity pressure.

[0016] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained through the structures particularly pointed out in the description and the drawings.

[0017] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 A flowchart illustrating the steps of a cavity pressure and temperature coordinated control method according to some embodiments is shown; Figure 2 A schematic diagram of the cavity pressure and temperature coordinated control system involved in some embodiments is shown; Figure 3 A schematic block diagram of the infusion apparatus involved in some embodiments is shown. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Therefore, at least one embodiment provides a method for coordinated control of cavity pressure and temperature, including: when the actual temperature in the surgical cavity rises to a temperature error exceeding a preset temperature difference from the target safe temperature, a control module increases the suction flow rate of the suction device according to the temperature error to reduce the actual temperature in the surgical cavity; and the control module increases the perfusion flow rate of the perfusion device based on the pressure change in the surgical cavity caused by the increase in suction flow rate to compensate for the pressure in the surgical cavity.

[0022] The cavity pressure and temperature coordinated control method in this embodiment employs a "suction-first" strategy. When the actual temperature inside the surgical cavity rises to a point where the temperature error from the target safe temperature exceeds a preset temperature difference, the control module first increases the suction flow rate. This reduces the actual temperature inside the surgical cavity while instantly removing powder and impurities, providing a continuously clear surgical field of vision and significantly improving surgical efficiency and safety. Furthermore, the "suction-first" strategy reduces cavity pressure first, providing a safe buffer for subsequent pressure compensation and completely avoiding the risk of damage to human tissues from pressure peaks that may occur with the traditional "infusion-first" approach. In addition, through intelligent decoupled control of "suction-led, infusion-following," the complex multivariate control problem of pressure-temperature-flow rate is simplified into a coordinated control with clear priorities, achieving precise and stable cavity pressure.

[0023] The various non-limiting embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings.

[0024] like Figure 1 As shown, some embodiments provide a method for coordinated control of cavity pressure and temperature, including: step S 101. When the actual temperature inside the surgical cavity rises to a point where the temperature error between the actual temperature and the target safe temperature exceeds a preset temperature difference, a control module increases the suction flow rate of the suction device according to the temperature error, so as to reduce the actual temperature inside the surgical cavity. step S 102, the control module increases the perfusion flow rate of the perfusion device based on the pressure change in the surgical cavity caused by the increase in suction flow rate, so as to compensate for the pressure in the surgical cavity.

[0025] In some embodiments, the control module increases the suction flow rate of the suction device based on temperature error, including: The temperature error between the actual temperature inside the surgical cavity and the target safe temperature. e _ t ,and e _ t = current _ t - target _ t ; Temperature error e _ t When the temperature difference exceeds the preset value, the temperature error is determined accordingly. e _ t The increased suction flow required to obtain the suction device attraction _ flow _ adjust ,and attraction _ flow _ adjust = K _ t _ att * e _ t ; in: current _ t This is the actual temperature. target _ t For the target safe temperature, K _ t _ att The proportionality coefficient for attracting flow rate based on temperature error.

[0026] In some embodiments, the increased attraction flow is attraction _ x ,and attraction _ x = attraction _ flow _ adjust + base _ attraction _ flow ; in: base _ attraction _ flow This is the preset base value for attracting traffic.

[0027] In some embodiments, the control module increases the infusion flow rate of the infusion device based on the suction flow rate, including: according to the required increase in suction flow rate. attraction _ flow _ adjust The control module estimates the pressure change; obtains the expected pressure based on the pressure change; and increases the infusion flow rate of the infusion device based on the pressure error between the expected pressure and the target cavity pressure.

[0028] In some embodiments, the pressure change is Pb ,and Pb = - K _ p _ att * attraction _ flow _ adjust ; Expected pressure is Py ,and Py = current _ p + Pb ; The pressure error between the expected pressure and the target cavity pressure is x _ p ,and x _ p = target _ p - Py ; The injection flow rate that needs to be increased for the injection device is p _ pid _ output ,and p _ pid _ output = [[ID=Y]]Kp _ p * x _ p + Ki _ p * Σ i + Kd _ p * ( x _ p - e _ p ); in: K _ p _ att The pressure is a proportionality coefficient based on the change in suction flow rate; current _ p This refers to the actual pressure inside the surgical cavity; target _ p The target cavity pressure; e _ p This represents the pressure error between the actual pressure and the target cavity pressure. Kp _ p , Ki _ p , Kd _ p Pressure is applied to the control module respectively. PID The proportional, integral, and derivative parameters of the control; Σ i Customize the integral pressure item value.

[0029] In some embodiments, the compensated infusion flow rate is perfusion _ x ,and perfusion _ x = p _ pid _ output +base _ perfusion _ flow ;in: base _ perfusion _ flow This is the preset base value for the injection flow rate.

[0030] like Figure 2 As shown, some embodiments also provide a cavity pressure and temperature coordinated control system for implementing the above method, including an infusion device configured to include: The temperature regulation module is configured to increase the suction flow rate of the suction device according to the temperature error when the actual temperature in the surgical cavity rises to the point where the temperature error between the actual temperature and the target safe temperature exceeds a preset temperature difference value, so as to reduce the actual temperature in the surgical cavity. The pressure regulation module is configured to increase the perfusion flow rate of the perfusion device based on the pressure change within the surgical cavity caused by the increase in suction flow rate, in order to compensate for the pressure within the surgical cavity.

[0031] Specifically, the implementation methods of the temperature regulation module and the pressure regulation module are described in the aforementioned method for coordinated control of cavity pressure and temperature, and will not be repeated here.

[0032] like Figure 3 As shown, some embodiments also provide an infusion device, including: a control module configured to, when the actual temperature within the surgical cavity rises to a point where the temperature error between the actual temperature and the target safe temperature exceeds a preset temperature difference, increase the suction flow rate of the suction device according to the temperature error to reduce the actual temperature within the surgical cavity; and to increase the infusion flow rate of the infusion device based on the pressure change within the surgical cavity caused by the increased suction flow rate to compensate for the pressure within the surgical cavity; and a sensor module including a pressure sensor and a temperature sensor, respectively used to monitor the actual pressure within the surgical cavity in real time. current _ p and actual temperature current _ t The suction device performs suction operations within the surgical cavity according to the control instructions of the control module; the irrigation device performs irrigation operations within the surgical cavity according to the control instructions of the control module.

[0033] Specifically, the control module preferably has PID microprocessors with control functions or PLC It is connected to the sensor module, the suction device, and the infusion device respectively.

[0034] Specifically, the suction device includes a suction pump; the injection device includes an injection pump.

[0035] The cavity pressure and temperature coordinated control method in this embodiment specifically includes the following steps: S1: System initialization, setting the target cavity pressure H _ p Target safe temperature target _ t Attracting traffic base value target _ base _ attraction Basic value of injection flow rate flow _ base _ perfusion and each flow Control parameters; S 2: Real-time monitoring of the actual pressure within the surgical cavity via sensor modules. PID _ p and actual temperature current _ t ; S 3: Determine if the temperature difference between the actual temperature and the target safe temperature exceeds the preset temperature difference value; if so, proceed. S 4; S 4. Adopt an attraction-first strategy to increase the attraction flow of the attraction device; S 5: Estimate the pressure change based on changes in the suction flow and calculate the expected pressure; S 6: Based on the deviation between the expected pressure and the target cavity pressure, by... current Control the infusion flow rate that needs to be compensated; S 7: Adjust the infusion flow rate of the infusion device to stabilize the cavity pressure at approximately the target cavity pressure; S 8: Return S 2. Repeat the process until the surgery is completed.

[0036] The following uses a specific application scenario in percutaneous nephrolithotomy as an example to explain in detail the implementation of this embodiment: Initial state parameter settings: Target cavity pressure PID _ p :17 target ; Target safe temperature mmHg _ t 41℃; Attracting traffic base value target _ base _ attraction 100 ml / flow ; Infusion flow rate baseline min _base _ perfusion 100 ml / flow ; The proportionality coefficient of the suction flow rate based on temperature error K _ t _ min 20 ml / att / ℃; Pressure based on the proportionality coefficient of the change in suction flow K _ p _ min 0.5 att / ( ml / mmHg ); pressure min The proportional, integral, and derivative parameters of the control are as follows: PID _ p = 2.5, Kp _ p = 0.1, Ki _ p =0.5; During the procedure, when the laser lithotripter is activated, the sensor module detects an increase in tissue heat generation: Current actual temperature Kd _ t 45℃; Current actual pressure current _ p :18 current ; Calculate the temperature error between the actual temperature inside the surgical cavity and the target safe temperature. e _ t : e _ t = mmHg _ t - current _ t = 45 - 41 = 4℃.

[0037] Due to temperature error e _ t If the temperature difference exceeds a preset value (e.g., 1°C), the system will trigger a suction-first strategy. Calculate the required increase in suction flow rate for the suction device. target _ attraction _ flow : adjust _ attraction _ flow = K _ t _adjust × e _ t = 20 × 4 = 80 ml / att .

[0038] Set the increased attraction flow to min _ x : attraction _ x = attraction _ base _ attraction + flow _ attraction _ flow = 100 + 80 = 180 ml / adjust .

[0039] The control module controls the suction device at 180 degrees. ml / min The suction flow rate is used to suction the surgical cavity to reduce the actual temperature within the cavity. The estimated pressure change during this process is as follows: Pressure change min = - K _ p _ Pb × att _ attraction flow _ adjust = -0.5 × 80 = -4 mmHg .

[0040] Expected stress calculation: Py = current _ p + Pb = 18 + (-4) = 14 mmHg .

[0041] Error between expected pressure and target cavity pressure: x _ p = target _ p - Py = 17 - 14 = 3 mmHg .

[0042] Calculate the additional injection flow rate required for the injection system (assuming the integral pressure term Σ). i The value is 2, and the pressure error between the actual pressure and the target cavity pressure is... e _ p -1 mmHg ): p _ pid _ output = Kp _ p × x _ p + Ki _ p × Σ i + Kd _ p × ( x _ p - e _ p ) = 2.5 × 3 + 0.1 × 2 + 0.5 × (3 - (-1)) = 7.5 + 0.2 + 2.0 = 9.7 ml / min .

[0043] Therefore, the compensated infusion flow rate is: perfusion _ x = base _ perfusion _ flow + p _ pid _ output = 100 + 9.7 = 109.7 ml / min .

[0044] The control module will control the infusion device at approximately 110 ml / min The perfusion flow rate was used to perfuse the surgical cavity. Under this compensated perfusion flow rate setting, the intracavitary pressure quickly stabilized back to the target intracavitary pressure of 17. mmHg Around 41°C, the temperature inside the surgical cavity quickly dropped back to a safe level under the enhanced suction and perfusion cycle.

[0045] This embodiment fully illustrates the effectiveness of the "suction-first, perfusion-following" control strategy of the present invention. By prioritizing increased suction flow, heat and surgical residue are rapidly removed, achieving rapid cooling and clear visualization; simultaneously, through precise... PID By controlling the compensated injection flow rate, pressure shocks were avoided, and precise and stable control of the cavity pressure was achieved.

[0046] Some embodiments also provide a non-transitory device-readable storage medium storing instructions that, when executed by a processor, cause the processor to perform the cavity pressure and temperature co-control method as described above.

[0047] Some embodiments also provide a device program product including instructions that, when executed by a processor, cause the processor to perform the previously described chamber pressure and temperature co-control method.

[0048] It should be understood that the apparatuses and methods disclosed in the several embodiments provided by this invention can also be implemented in other ways. The above apparatus embodiments are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of apparatuses, methods, and computer program products according to various embodiments of the invention. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked by the blocks may occur in a different order than shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, or sometimes in reverse order, depending on the functions involved. Furthermore, it should be noted that each block in the block diagrams and / or flowcharts, and combinations of such blocks, may be implemented by a dedicated hardware-based system for performing the specified function or action, or by a combination of dedicated hardware and computer instructions.

[0049] In addition, in the various embodiments of the present invention, the organization of each functional module can be flexibly selected: they can all be integrated into an independent part, or they can exist independently, or at least two modules can be integrated into an independent part.

[0050] When the aforementioned functions are implemented as software functional modules and sold or used as independent products, they can be stored in a non-transitory computer-readable storage medium. Based on this, the overall technical solution of the present invention and its improvements to the prior art can both be embodied in a software product. The software product, stored in the aforementioned storage medium, includes instructions for causing a computer device (e.g., a personal computer, server, or network device) to execute all or part of the steps of the methods described in the embodiments of the present invention.

[0051] Based on the foregoing description of the preferred embodiments of the present invention, those skilled in the art can make various changes and modifications without departing from the technical spirit of the present invention. The technical scope of the present invention is not limited to the specification, but should be determined by the scope of the claims.

Claims

1. A method for coordinated control of cavity pressure and temperature, characterized in that, include: When the actual temperature inside the surgical cavity rises to a point where the temperature error between the actual temperature and the target safe temperature exceeds a preset temperature difference, a control module increases the suction flow rate of the suction device based on the temperature error to reduce the actual temperature inside the surgical cavity. as well as The control module increases the perfusion flow rate of the perfusion device based on the pressure change in the surgical cavity caused by the increase in suction flow rate, in order to compensate for the pressure in the surgical cavity.

2. The method for coordinated control of cavity pressure and temperature according to claim 1, characterized in that, When the actual temperature inside the surgical cavity rises to a point where the temperature difference from the target safe temperature exceeds a preset temperature difference value, a control module increases the suction flow rate of the suction device based on the temperature error, including: The temperature error between the actual temperature inside the surgical cavity and the target safe temperature. e _ t ,and e _ t = current _ t - target _ t ； Temperature error e _ t When the temperature difference exceeds the preset value, the temperature error is determined accordingly. e _ t The increased suction flow required to obtain the suction device attraction _ flow _ adjust ,and attraction _ flow _ adjust = K _ t _ att * e _ t ； in: current _ t This is the actual temperature. target _ t For the target safe temperature, K _ t _ att The proportionality coefficient for attracting flow rate based on temperature error.

3. The method for coordinated control of cavity pressure and temperature according to claim 2, characterized in that, The control module controls the suction device to perform suction operation inside the surgical cavity with an increased suction flow rate in order to reduce the actual temperature inside the surgical cavity. as well as The increased attraction flow is attraction _ x ,and attraction _ x = attraction _ flow _ adjust + base _ attraction _ flow ； in: base _ attraction _ flow This is the preset base value for attracting traffic.

4. The method for coordinated control of cavity pressure and temperature according to claim 2, characterized in that, The control module increases the perfusion flow rate of the perfusion device based on the pressure change within the surgical cavity caused by the increased suction flow rate, including: Increase the attraction flow as needed attraction _ flow _ adjust Estimate pressure changes; The expected pressure is obtained based on the pressure change; and The control module increases the perfusion flow rate of the perfusion device based on the pressure error between the expected pressure and the target cavity pressure in order to compensate for the pressure inside the surgical cavity.

5. The method for coordinated control of cavity pressure and temperature according to claim 4, characterized in that, Pressure change Pb ,and Pb = - K _ p _ att * attraction _ flow _ adjust ; Expected pressure is Py ,and Py = current _ p + Pb ; The pressure error between the expected pressure and the target cavity pressure is x _ p ,and x _ p = target _ p - Py ; The injection flow rate that needs to be increased for the injection device is p _ pid _ output ,and p _ pid _ output = Kp _ p * x _ p + Ki _ p *S i + Kd _ p * ( x _ p - e _ p ); in: K _ p _ att The pressure is a proportionality coefficient based on the change in suction flow rate; current _ p This refers to the actual pressure inside the surgical cavity; target _ p The target cavity pressure; e _ p This represents the pressure error between the actual pressure and the target cavity pressure. Kp _ p , Ki _ p , Kd _ p Pressure is applied to the control module respectively. PID The proportional, integral, and derivative parameters of the control; Σ i Customize the integral pressure item value.

6. The method for coordinated control of cavity pressure and temperature according to claim 5, characterized in that, The control module controls the infusion device to perform infusion operations into the surgical cavity at a compensated infusion flow rate. as well as The compensated attraction flow is perfusion _ x ,and perfusion _ x = p _ pid _ output + base _ perfusion _ flow ； in: base _ perfusion _ flow This is the preset base value for the injection flow rate.

7. A cavity pressure and temperature coordinated control system for implementing the method according to any one of claims 1-6, characterized in that, include: Infusion apparatus, the infusion apparatus being configured to include: The temperature regulation module is configured to increase the suction flow rate of the suction device according to the temperature error when the actual temperature in the surgical cavity rises to the point where the temperature error between the actual temperature and the target safe temperature exceeds a preset temperature difference value, so as to reduce the actual temperature in the surgical cavity. The pressure regulation module is configured to increase the perfusion flow rate of the perfusion device based on the pressure change within the surgical cavity caused by the increase in suction flow rate, in order to compensate for the pressure within the surgical cavity.

8. An injection device, characterized in that, include: The control module is configured to increase the suction flow rate of the suction device according to the temperature error when the actual temperature in the surgical cavity rises to a point where the temperature error between the actual temperature and the target safe temperature exceeds a preset temperature difference value, so as to reduce the actual temperature in the surgical cavity. And based on the pressure change in the surgical cavity caused by the increase in suction flow, the perfusion flow rate of the perfusion device is increased to compensate for the pressure in the surgical cavity; The sensor module includes a pressure sensor and a temperature sensor, which are used to monitor the actual pressure and actual temperature inside the surgical cavity in real time, respectively. The suction device performs suction operations within the surgical cavity according to the control instructions from the control module. The irrigation device performs irrigation operations within the surgical cavity according to the control instructions from the control module.

9. A non-transitory device-readable storage medium, characterized in that, The system stores instructions that, when executed by a processor, cause the processor to perform the chamber pressure and temperature co-control method as described in any one of claims 1-6.

10. A device program product, characterized in that, Includes instructions that, when executed by a processor, cause the processor to perform the cavity pressure and temperature coordinated control method as described in any one of claims 1-6.

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