Intelligent pressure control system and method for medical instrument and storage medium

Abstract

The invention discloses a medical instrument intelligent pressure control system and method and a storage medium. The intelligent pressure control system for the medical instrument comprises a pressure sensor, an image sensor, a controller and a pressure control pump, the pressure sensor is configured to monitor the pressure in the cavity in real time and collect the pressure value. The controller is configured to receive the pressure value collected by the pressure sensor, compare the pressure value with a preset pressure threshold value, output a first comparison result, receive the environment image collected by the image sensor, obtain the distance between the image sensor and the tissue according to the environment image, and output a second comparison result. The controller is configured to receive the distance from the pressure control pump, compare the distance with a preset distance threshold, output a second comparison result, and control the pressure control pump to control the intra-cavity pressure according to the first comparison result and the second comparison result. Therefore, the intelligent pressure control system for the medical instrument can realize high precision, quick response and low cost, and reduces environmental dependence.

Description

Technical Field

[0001] This disclosure relates to a medical device intelligent pressure control system, a medical device intelligent pressure control method, and a storage medium. Background Technology

[0002] With the development of medical technology and the widespread application of endoscopic techniques, laparoscopic surgery, hysteroscopic surgery, cystoscopy, and other laparoscopic surgeries have also evolved. In these laparoscopic surgeries, to maintain intracavitary operating space, ensure clear visualization, flush debris / blood / tissue, and cool the tissue, it is necessary to keep the intracavitary pressure within a certain range, avoiding excessively high or low pressure. Therefore, close monitoring and control of intracavitary pressure is one of the key aspects of surgical safety in these laparoscopic surgeries. Summary of the Invention

[0003] At least one embodiment of this disclosure provides a medical device intelligent pressure control system, comprising: a pressure sensor configured to monitor intracavitary pressure in real time and acquire pressure values; an image sensor configured to acquire environmental images; a controller communicatively connected to the pressure sensor and the image sensor; and a pressure control pump communicatively connected to the controller. The controller is configured to receive the pressure values ​​acquired by the pressure sensor, compare the pressure values ​​with a preset pressure threshold, and output a first comparison result. The controller is further configured to receive the environmental images acquired by the image sensor, obtain the distance between the image sensor and intracavitary tissue based on the environmental images, compare the distance with a preset distance threshold, and output a second comparison result. The controller is further configured to control the pressure control pump to control the intracavitary pressure based on the first comparison result and the second comparison result. The pressure thresholds include a first pressure threshold and a second pressure threshold, where the first pressure threshold is greater than the second pressure threshold. The preset distance thresholds include a first distance threshold and a second distance threshold, where the first distance threshold is greater than the second distance threshold. A preset correspondence exists between the preset pressure thresholds and the preset distance thresholds. When the first comparison result and the second comparison result do not deviate, if the first comparison result indicates that the pressure value is greater than the first pressure threshold, or if the second comparison result indicates that the distance is greater than the first distance threshold, the controller controls the pressure control pump to reduce the intracavitary pressure. When the first comparison result and the second comparison result do not deviate, if the first comparison result indicates that the pressure value is less than the second pressure threshold, or if the second comparison result indicates that the distance is less than the second distance threshold, the controller controls the pressure control pump to increase the intracavitary pressure.

[0004] For example, in a medical device intelligent pressure control system provided in an embodiment of this disclosure, the first comparison result and the second comparison result are not contradictory in the following ways: the first comparison result is that the pressure value is greater than the first pressure threshold and the second comparison result is that the distance is not less than the second distance threshold; the second comparison result is that the distance is greater than the first distance threshold and the first comparison result is that the pressure value is not less than the second pressure threshold; the first comparison result is that the pressure value is less than the second pressure threshold and the second comparison result is that the distance is not greater than the first distance threshold; or the second comparison result is that the distance is less than the second distance threshold and the first comparison result is that the pressure value is not greater than the first pressure threshold.

[0005] For example, in a medical device intelligent pressure control system provided in an embodiment of this disclosure, the pressure control pump includes a booster pump and a depressurizer pump, and the controller is configured to turn on the booster pump and turn off the depressurizer pump to increase the intracavitary pressure, and to turn off the booster pump and turn on the depressurizer pump to decrease the intracavitary pressure.

[0006] For example, in a medical device intelligent pressure control system provided in an embodiment of this disclosure, when the first comparison result and the second comparison result do not deviate, when the first comparison result is that the pressure value is greater than the first pressure threshold, or when the second comparison result is that the distance is greater than the first distance threshold, the controller controls the pressure control pump to reduce the intracavitary pressure, including: the controller controls the discharge flow rate of the pressure reducing pump to a first discharge flow rate to reduce the intracavitary pressure; when the pressure reducing pump operates at the first discharge flow rate for a first time and the decrease in intracavitary pressure is less than a first preset decrease value, the controller increases the discharge flow rate of the pressure reducing pump; and / or, when the pressure reducing pump operates at the first discharge flow rate for a second time and the decrease in intracavitary pressure is greater than a second preset decrease value, the controller reduces the discharge flow rate of the pressure reducing pump.

[0007] For example, in a medical device intelligent pressure control system provided in an embodiment of this disclosure, when the first comparison result and the second comparison result do not deviate, when the first comparison result is that the pressure value is less than the second pressure threshold, or when the second comparison result is that the distance is less than the second distance threshold, the controller controls the pressure control pump to increase the intracavitary pressure, including: the controller controls the injection flow rate of the booster pump to a first injection flow rate to increase the intracavitary pressure; when the booster pump operates at the first injection flow rate for a third time and the increase in intracavitary pressure is less than a first preset increase value, the controller increases the injection flow rate of the booster pump; and / or, when the booster pump operates at the first injection flow rate for a fourth time and the increase in intracavitary pressure is greater than a second preset increase value, the controller decreases the injection flow rate of the booster pump.

[0008] For example, an embodiment of the intelligent pressure control system for medical devices provided in this disclosure further includes: an alarm device, which is communicatively connected to the controller and configured to issue an alarm signal. When the first comparison result is that the pressure value is greater than the first pressure threshold and the second comparison result is that the distance is less than the second distance threshold, or when the first comparison result is that the pressure value is less than the second pressure threshold and the second comparison result is that the distance is greater than the first distance threshold, the controller controls the alarm device to issue an alarm signal.

[0009] For example, in a medical device intelligent pressure control system provided in an embodiment of this disclosure, the alarm device includes at least one of a display device and a buzzer, wherein the display device is configured to display a warning image and the buzzer is configured to emit a prompt sound.

[0010] For example, in a medical device intelligent pressure control system provided in an embodiment of this disclosure, the controller includes an image recognition module, which is configured to perform image recognition on the environmental image to obtain the distance between the image sensor and the intracavitary tissue.

[0011] At least one embodiment of this disclosure also provides a smart pressure control method for a medical device, comprising: monitoring intracavitary pressure via a pressure sensor and acquiring pressure values; acquiring an environmental image via an image sensor; comparing the pressure values ​​acquired by the pressure sensor with a preset pressure threshold and outputting a first comparison result; obtaining the distance between the image sensor and intracavitary tissue based on the environmental image, comparing the distance with a preset distance threshold, and outputting a second comparison result; and controlling a pressure control pump to control the intracavitary pressure based on the first comparison result and the second comparison result; wherein the preset pressure threshold includes a first pressure threshold and a second pressure threshold, the first pressure threshold being greater than the second pressure threshold, and the preset distance threshold includes a first distance threshold and a second distance threshold, the first distance threshold being greater than the second pressure threshold. Regarding the second distance threshold, there is a preset correspondence between the preset pressure threshold and the preset distance threshold; controlling the pressure control pump to control the intracavitary pressure according to the first comparison result and the second comparison result includes: when the first comparison result and the second comparison result do not deviate, when the first comparison result is that the pressure value is greater than the first pressure threshold, or when the second comparison result is that the distance is greater than the first distance threshold, the controller controls the pressure control pump to reduce the intracavitary pressure; when the first comparison result and the second comparison result do not deviate, when the first comparison result is that the pressure value is less than the second pressure threshold, or when the second comparison result is that the distance is less than the second distance threshold, the controller controls the pressure control pump to increase the intracavitary pressure.

[0012] At least one embodiment of this disclosure also provides a computer-readable storage medium, wherein the computer-readable storage medium includes a stored computer program that, when executed, performs the above-described intelligent pressure control method for medical devices.

[0013] In the intelligent pressure control system for medical devices provided in this disclosure, a pressure sensor directly monitors the intracavitary pressure, and an image sensor and image recognition technology are used to acquire the distance between the image sensor and the intracavitary tissue to simultaneously monitor the intracavitary pressure. This dual-method approach achieves monitoring of the intracavitary pressure. Therefore, if either the pressure sensor or the image sensor fails, or if the data collected by both deviates (e.g., the pressure reading is extremely low but the image reading is extremely far away), the system can promptly identify the abnormal state and trigger an alarm mechanism. This prevents dangerous actions based on a single erroneous data point (e.g., continuously increasing pressure despite excessive pressure), significantly improving the stability and robustness of the intelligent pressure control system. Furthermore, compared to physical sensors, determining intracavitary pressure by acquiring the distance between the image sensor and the intracavitary tissue improves response speed and increases the measurement range, while avoiding the susceptibility of physical sensors to environmental factors, reducing environmental dependence. Therefore, this intelligent pressure control system for medical devices, utilizing the collaborative work of the pressure sensor and the image sensor, achieves high-precision, rapid-response pressure control.

[0014] On the other hand, the controller is configured to control the pressure control pump to control the intracavitary pressure based on the first comparison result and the second comparison result mentioned above. This allows for monitoring of the intracavitary pressure in two different ways. If either monitoring method indicates that the intracavitary pressure is not in the safe operating range, the pressure is immediately adjusted, which increases the accuracy and speed of pressure adjustment, improves safety and reliability, and avoids the cost increase caused by using two sets of physical sensors. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this disclosure and are not intended to limit this disclosure.

[0016] Figure 1 This is a schematic diagram of an intelligent pressure control system for a medical device provided in one embodiment of the present disclosure.

[0017] Figure 2 This is a logic control diagram of an intelligent pressure control system for a medical device provided in one embodiment of the present disclosure.

[0018] Figure 3 This is a schematic diagram of another intelligent pressure control system for medical devices provided in an embodiment of the present disclosure.

[0019] Figure 4This is a flowchart of a medical device intelligent pressure control method provided in one embodiment of the present disclosure. Detailed Implementation

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

[0021] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that an element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects.

[0022] In the field of automatic control technology, pressure control is one of the important research directions. Traditional pressure control methods mainly rely on physical sensors to monitor and adjust pressure in real time to maintain pressure stability within the system. With the development of image processing technology, some new control methods are beginning to utilize image sensors for pressure control, aiming to achieve higher control accuracy and response speed. Meanwhile, intelligent control systems are also constantly evolving, with the goal of achieving more efficient and precise automatic control through intelligent means.

[0023] Conventional pressure control techniques primarily rely on physical sensors, such as pressure transmitters and gauges, to monitor system pressure in real time and adjust it using control algorithms. This method offers the advantage of high control accuracy, but its response speed and measurement range can be limited due to the limitations of physical sensors. However, conventional pressure control techniques also present several challenges in practical applications. First, the limited response speed and measurement range of physical sensors may not meet certain high-precision, fast-response pressure control requirements. For example, when existing miniature pressure sensors read pressure within human cavities, they are susceptible to interference from adjacent tissues or sites. Blockage or contamination of the sensor channel can lead to significant discrepancies between the read pressure and the actual value, resulting in a reading lower than the true pressure. Relying solely on pressure sensors may lead to incorrect judgments, such as requiring further increases in internal cavity pressure, potentially causing harm. Second, physical sensors are costly to install and maintain and are easily affected by environmental factors such as temperature, humidity, and electromagnetic interference. On the other hand, while image processing technology can improve system response speed, its control accuracy and stability still need improvement. Furthermore, image processing technology is highly sensitive to image quality and environmental factors. Poor image quality or complex environmental conditions can lead to control failure or decreased accuracy. Therefore, developing a stress control technology that achieves high accuracy and rapid response while reducing costs and environmental dependence is a pressing issue in this field.

[0024] To address this, this disclosure provides an intelligent pressure control system for a medical device, comprising a pressure sensor, an image sensor, a controller, and a pressure control pump. The pressure sensor is configured to monitor intracavitary pressure in real time and collect pressure values. The image sensor is configured to collect environmental images. The controller is communicatively connected to the pressure sensor and the image sensor. The pressure control pump is communicatively connected to the controller. The controller is configured to receive the pressure values ​​collected by the pressure sensor, compare the pressure values ​​with a preset pressure threshold, and output a first comparison result. The controller is also configured to receive the environmental images collected by the image sensor, obtain the distance between the image sensor and the intracavitary tissue based on the environmental images, compare the distance with a preset distance threshold, and output a second comparison result. The controller is further configured to control the pressure control pump to control the intracavitary pressure based on the first and second comparison results. Thus, this intelligent pressure control system for a medical device uses a pressure sensor to directly monitor intracavitary pressure and uses an image sensor and image recognition technology to obtain the distance between the image sensor and the intracavitary tissue to simultaneously monitor intracavitary pressure, achieving monitoring of intracavitary pressure through two independent methods. Therefore, when either the pressure sensor or the image sensor fails, or when the data collected by the two sensors diverges (e.g., the pressure reading is extremely low but the image distance is extremely far), the system can promptly identify abnormal states and trigger an alarm mechanism. This prevents dangerous actions based on a single erroneous data point (e.g., continuing to pressurize despite excessively high pressure), significantly improving the stability and robustness of the intelligent pressure control system for medical devices. Furthermore, compared to physical sensors, determining intracavitary pressure by acquiring the distance between the image sensor and the intracavitary tissue improves response speed and increases the measurement range. It also avoids the susceptibility of physical sensors to environmental factors, reducing environmental dependence. Therefore, this intelligent pressure control system for medical devices utilizes the collaborative work of the pressure sensor and the image sensor to achieve high-precision, rapid-response pressure control.

[0025] Furthermore, this disclosure also provides a smart pressure control method for medical devices, comprising: monitoring intracavitary pressure using a pressure sensor and acquiring pressure values; acquiring environmental images using an image sensor; comparing the pressure values ​​acquired by the pressure sensor with a preset pressure threshold and outputting a first comparison result; obtaining the distance between the image sensor and the intracavitary tissue based on the environmental image, comparing the distance with a preset distance threshold, and outputting a second comparison result; and controlling a pressure control pump to control the intracavitary pressure based on the first comparison result and the second comparison result. Thus, this smart pressure control method for medical devices uses a pressure sensor to directly monitor intracavitary pressure and uses an image sensor and image recognition technology to acquire the distance between the image sensor and the intracavitary tissue to simultaneously monitor intracavitary pressure. By using two independent methods, monitoring of intracavitary pressure is achieved. When either monitoring method indicates that the intracavitary pressure is outside the safe operating range, the pressure is immediately adjusted, increasing the accuracy and speed of pressure adjustment, improving safety and reliability, and avoiding the use of two sets of physical sensors. Therefore, this smart pressure control method for medical devices can achieve high-precision, rapid-response pressure control technology that also reduces costs and environmental dependence.

[0026] This disclosure also provides a computer-readable storage medium including a stored computer program, which executes the above-described intelligent pressure control method for medical devices when the computer program is run.

[0027] The intelligent pressure control system, intelligent pressure control method, and computer-readable storage medium for medical devices provided in this disclosure will now be described in detail with reference to the accompanying drawings.

[0028] One embodiment of this disclosure provides an intelligent pressure control system for a medical device. Figure 1 This is a schematic diagram of an intelligent pressure control system for a medical device provided in one embodiment of this disclosure. Figure 1As shown, the intelligent pressure control system 100 for this medical device includes a pressure sensor 110, an image sensor 120, a controller 130, and a pressure control pump 140. The pressure sensor 110 is configured to monitor the intracavitary pressure in real time and collect pressure values. The image sensor 120 is configured to collect environmental images, such as images of the environment in which the image sensor 120 is located (the environment in which the medical device treats intracavitary tissue). The controller 130 is communicatively connected to the pressure sensor 110 and the image sensor 120, respectively, and the pressure control pump 140 is communicatively connected to the controller 130. It should be noted that the aforementioned intracavitary pressure is the fluid pressure formed by the infusion medium (such as physiological saline) within the cavity where the medical device is located. The aforementioned intracavitary refers to the target anatomical cavity or physiological cavity where the medical device is located, such as the natural cavities of the bladder and prostate. Of course, the embodiments of this disclosure include, but are not limited to, the aforementioned intracavitary pressure may also be the internal pressure formed by the infusion medium in other elastic containers, in which case the aforementioned other elastic containers do not include cavities inside biological bodies. For example, the aforementioned intracavitary pressure could also be the pressure within the space formed in the container of the non-biological cavity outside the pressure sensor and image sensor. Furthermore, the aforementioned communication connection includes wired and wireless methods. Wired communication can be achieved via signal lines, while wireless communication can be achieved via the internet, 5G networks, WiFi networks, etc.

[0029] The controller 130 is configured to receive pressure values ​​collected by the pressure sensor 110, compare the pressure values ​​with a preset pressure threshold, and output a first comparison result; thus, the intracavitary pressure can be directly determined from the pressure values ​​collected by the pressure sensor to determine whether it is within a suitable range. The controller 130 is also configured to receive environmental images collected by the image sensor 120, obtain the distance between the image sensor and the intracavitary tissue based on the environmental images, compare the distance with a preset distance threshold, and output a second comparison result; thus, the distance between the image sensor and the intracavitary tissue can be determined from the environmental images collected by the image sensor to determine whether it is within a suitable range. The controller 130 is also configured to control the pressure control pump 140 to control the intracavitary pressure based on the aforementioned first and second comparison results.

[0030] It should be noted that in human cavities or other elastic containers, the distance between the inner wall of the cavity or container and the image sensor is directly related to the pressure within the cavity or container; that is, the greater the pressure and the larger the volume, the greater the distance, and vice versa. Therefore, the distance between the image sensor and the tissue inside the cavity can reflect the magnitude of the intracavitary pressure.

[0031] In the intelligent pressure control system for medical devices provided in this disclosure, a pressure sensor directly monitors the intracavitary pressure, and an image sensor and image recognition technology are used to acquire the distance between the image sensor and the intracavitary tissue to simultaneously monitor the intracavitary pressure. This dual-method approach achieves monitoring of the intracavitary pressure. Therefore, if either the pressure sensor or the image sensor fails, or if the data collected by both deviates (e.g., the pressure reading is extremely low but the image reading is extremely far away), the system can promptly identify the abnormal state and trigger an alarm mechanism. This prevents dangerous actions based on a single erroneous data point (e.g., continuously increasing pressure despite excessive pressure), significantly improving the stability and robustness of the intelligent pressure control system. Furthermore, compared to physical sensors, determining intracavitary pressure by acquiring the distance between the image sensor and the intracavitary tissue improves response speed and increases the measurement range, while avoiding the susceptibility of physical sensors to environmental factors, reducing environmental dependence. Therefore, this intelligent pressure control system for medical devices, utilizing the collaborative work of the pressure sensor and the image sensor, achieves high-precision, rapid-response pressure control.

[0032] On the other hand, the controller is configured to control the pressure control pump to control the intracavitary pressure based on the first and second comparison results mentioned above. This allows for monitoring of the intracavitary pressure using two different methods. If either monitoring method indicates that the intracavitary pressure is outside the safe operating range, the pressure is immediately adjusted, increasing the accuracy and speed of pressure regulation, improving safety and reliability, and avoiding the increased costs associated with using two sets of physical sensors. Therefore, this intelligent pressure control system for medical devices achieves high precision, rapid response, and cost-effective, environmentally-dependent pressure control technology. It should be noted that image sensors are less expensive than traditional physical sensors and are easier to install and maintain. Furthermore, because image sensors are less affected by environmental factors such as temperature, humidity, and electromagnetic interference, this intelligent pressure control system for medical devices has a wider range of applications and greater adaptability.

[0033] In some examples, when the aforementioned cavity is within the target anatomical or physiological cavity where the medical device is located, the pressure values ​​collected by the pressure sensor and the environmental images collected by the image sensor are intermediate results and are not directly used to obtain diagnostic results or health status. Furthermore, the acquisition, processing, and control steps based on these intermediate results are all automatically executed by a computer or processor without human intervention, constituting an information processing method implemented by a computer or similar device.

[0034] Figure 2 This is a logic control diagram of an intelligent pressure control system for a medical device provided in one embodiment of the present disclosure. Figure 2As shown, the aforementioned preset pressure thresholds include a first pressure threshold A1 and a second pressure threshold A2, where the first pressure threshold A1 is greater than the second pressure threshold A2. Similarly, the aforementioned preset distance thresholds include a first distance threshold B1 and a second distance threshold B2, where the first distance threshold B1 is greater than the second distance threshold B2. There is a preset correspondence between the preset pressure thresholds and the preset distance thresholds. That is, the first pressure threshold A1 corresponds to the first distance threshold B1, and the second pressure threshold A2 corresponds to the second distance threshold B2.

[0035] In some examples, the first distance threshold B1 is the distance threshold corresponding to the first pressure threshold A1 calibrated externally, and the second distance threshold B2 is the distance threshold corresponding to the second pressure threshold A2 calibrated externally. Thus, by setting the first and second pressure thresholds, the intracavitary pressure can be better controlled. Furthermore, by making the preset pressure threshold correspond to the preset distance threshold, this intelligent pressure control system for medical devices achieves mutual mapping and real-time comparison of data from different sensors (physical pressure and optical images). This not only provides redundant verification when a single sensor exhibits hidden drift or error, but also predicts the dynamic change trend of intracavitary pressure in advance, thereby guiding the PID (Proportional-Integral-Derivative) algorithm to achieve smoother and faster dynamic pressure adjustment, avoiding pressure oscillations easily caused by traditional single-threshold control. Moreover, by utilizing the distance between the image sensor and the intracavitary tissue to simultaneously monitor the magnitude of intracavitary pressure, the accuracy and response speed of pressure regulation are increased.

[0036] It should be noted that the aforementioned first and second distance thresholds can be calibrated externally in the following way: First, in a model simulating a body cavity, the regression relationship between intracavitary pressure and distance is obtained, which determines the relationship between the first pressure threshold A1 and the second pressure threshold A2; similarly, the relationship between the first distance threshold B1 and the second distance threshold B2 can be obtained; then, the intracavitary pressure is precisely adjusted to the first pressure threshold A1 using a pressure control pump. At this point, the distance between the pressure threshold A1 and the inner wall of the model is measured using an image sensor, and this distance is recorded as the first distance threshold B1. Similarly, the correspondence between the second pressure threshold A2 and the second distance threshold B2 can be calibrated.

[0037] In some examples, the controller 130 determines whether the first comparison result and the second comparison result deviate. If the first comparison result and the second comparison result do not deviate, the controller controls the pressure control pump 140 to control the pressure inside the chamber based on the first comparison result and the second comparison result. If the first comparison result and the second comparison result deviate, the controller issues an alarm signal.

[0038] In some examples, controlling the pressure control pump to control the intracavitary pressure based on the first comparison result and the second comparison result includes: when the first comparison result and the second comparison result do not deviate, and either comparison result is not within the two-dimensional safe working area formed by [second pressure threshold A2, first pressure threshold A1] and [second distance threshold B2, first distance threshold B1], then the pressure control pump is controlled to control the intracavitary pressure. Specifically, when the first comparison result is not within [second pressure threshold A2, first pressure threshold A1] or the second comparison result is not within [second distance threshold B2, first distance threshold B1], the pressure control pump is controlled to control the intracavitary pressure. The aforementioned "first comparison result and second comparison result not deviating" means: one comparison result is greater than the upper limit warning line of the corresponding preset threshold, and the other comparison result is not less than the lower limit warning line of the corresponding preset threshold; or one comparison result is less than the lower limit warning line of the corresponding preset threshold, and the other comparison result is not greater than the upper limit warning line of the corresponding preset threshold. For example, the first comparison result and the second comparison result mentioned above do not deviate from each other if: the first comparison result is that the pressure value is greater than the first pressure threshold A1 and the second comparison result is that the distance is not less than the second distance threshold B2, or the second comparison result is that the distance is greater than the first distance threshold B1 and the first comparison result is that the pressure value is not less than the second pressure threshold A2; the first comparison result is that the pressure value is less than the second pressure threshold A2 and the second comparison result is that the distance is not greater than the first distance threshold B1, or the second comparison result is that the distance is less than the second distance threshold B2 and the first comparison result is that the pressure value is not greater than the first pressure threshold A1.

[0039] In some examples, when the first comparison result and the second comparison result do not diverge, such as Figure 2As shown, when the first comparison result is that the pressure value is greater than the first pressure threshold A1, or when the second comparison result is that the distance is greater than the first distance threshold B1, the controller controls the pressure control pump to reduce the intracavity pressure; when the first comparison result and the second comparison result do not deviate, when the first comparison result is that the pressure value is less than the second pressure threshold A2, or when the second comparison result is that the distance is less than the second distance threshold B2, the controller controls the pressure control pump to increase the intracavity pressure. In other words, when the first comparison result is that the pressure value is greater than the first pressure threshold A1 and the second comparison result is that the distance is not less than the second distance threshold B2, or when the second comparison result is that the distance is greater than the first distance threshold B1 and the first comparison result is that the pressure value is not less than the second pressure threshold A2, the controller controls the pressure control pump to reduce the intracavity pressure; when the first comparison result is that the pressure value is less than the second pressure threshold A2 and the second comparison result is that the distance is not greater than the first distance threshold B1, or when the second comparison result is that the distance is less than the second distance threshold B2 and the first comparison result is that the pressure value is not greater than the first pressure threshold A1, the controller controls the pressure control pump to increase the intracavity pressure. Therefore, this intelligent pressure control system for medical devices maintains the state of the target surgical cavity within a two-dimensional safe working area defined by [second pressure threshold A2, first pressure threshold A1] and [second distance threshold B2, first distance threshold B1] by monitoring two independent physical quantities: pressure and distance. If either measured value exceeds the preset safety boundary of the two-dimensional safe working area, the corresponding pressure regulation procedure will be immediately initiated until the state of the target surgical cavity returns to within this two-dimensional safe working area. Thus, this intelligent pressure control system for medical devices improves response speed, safety, and reliability.

[0040] It should be noted that when a single sensor receives information, the pressure sensor is at risk of blockage or interference from foreign objects, causing incorrect pressure readings. Similarly, the image sensor is at risk of being obstructed by foreign objects, resulting in incorrect distances between the acquired image sensor and the intracavitary tissue. In the intelligent pressure control system for medical devices provided in this embodiment, when the pressure value detected by the pressure sensor and the distance acquired by the image sensor are not contradictory, the information provided by either the pressure sensor or the image sensor can enable the pressure control pump to perform pressurization or depressurization operations, thereby improving response speed and pressure regulation accuracy. On the other hand, when the pressure value detected by the pressure sensor and the distance acquired by the image sensor are contradictory, an error can be immediately reported, thereby improving safety. It should be noted that the aforementioned situation where the pressure value detected by the pressure sensor and the distance acquired by the image sensor are contradictory refers to a situation where the pressure value is greater than a first pressure threshold A1 and the distance is less than a second distance threshold B2, or the pressure value is less than the second pressure threshold A2 and the distance is greater than the first distance threshold B1.

[0041] Figure 3This is a schematic diagram of another intelligent pressure control system for a medical device provided in one embodiment of this disclosure. Figure 3 As shown, the pressure control pump 140 described above includes a booster pump 141 and a pressure reducing pump 142. See also... Figure 2 As shown, the controller 130 is configured to turn on the booster pump 141 and turn off the depressurization pump 142 to increase the intracavitary pressure, and to turn off the booster pump 141 and turn on the depressurization pump 142 to decrease the intracavitary pressure. Thus, this intelligent pressure control system for medical devices uses dual pumps to regulate the intracavitary pressure, thereby enabling finer and more precise adjustments.

[0042] In some examples, the controller controlling the pressure control pump to reduce intracavitary pressure includes: the controller controlling the discharge flow rate of the pressure reducing pump to a first discharge flow rate to reduce intracavitary pressure; when the pressure reducing pump operates at the first discharge flow rate for a first time, and the decrease in intracavitary pressure is less than a first preset decrease value, the controller increases the discharge flow rate of the pressure reducing pump. The first time and the first preset decrease value are dynamically controlled by a PID (Proportional-Integral-Derivative) control algorithm. The controller increases the proportional coefficient Kp of the PID control algorithm to improve the response speed of the discharge flow rate, thereby increasing the discharge flow rate of the pressure reducing pump. The first time can be, for example, a value between 400ms and 1s. The first preset decrease value is the minimum effective pressure decrease value expected to be seen within the first time. The first preset decrease value is adjusted according to the total target decrease value of intracavitary pressure, which is the difference between the pressure value collected in real time by the pressure sensor 110 and the set target pressure value (the ideal intracavitary pressure value to be maintained). Thus, this intelligent pressure control system for medical devices can use a PID control algorithm to control intracavitary pressure, thereby effectively and stably maintaining the intracavitary pressure within the required range.

[0043] In some examples, the controller's control of the pressure-reducing pump to lower the intracavitary pressure further includes: when the pressure-reducing pump operates at the first discharge flow rate for a second time, and the decrease in intracavitary pressure exceeds a second preset decrease value, the controller reduces the discharge flow rate of the pressure-reducing pump. The second time and the second preset decrease value are dynamically controlled by a PID control algorithm. The controller reduces the proportional coefficient Kp of the PID control algorithm, making the operation of the pressure-reducing pump smoother and avoiding over-adjustment that could lead to pressure oscillations. In a single adjustment cycle, the second time is greater than or equal to the first time, and the second preset decrease value is greater than the first preset decrease value, to avoid drastic fluctuations in flow rate. However, throughout the entire adjustment process, the adjustment time and preset decrease value are dynamically changing each time; there is no fixed comparison relationship between the first time and the second time, or between the first preset decrease value and the second preset decrease value. Therefore, this intelligent pressure control system for medical devices can utilize a PID control algorithm to control the intracavitary pressure, thereby effectively maintaining the intracavitary pressure within the required range.

[0044] For example, when the pressure value is greater than the first pressure threshold A1, such as A1 + 30 mmHg, the pressure reducing pump's discharge flow rate will be determined as the first discharge flow rate Y according to the preset PID algorithm. The controller then controls the pressure reducing pump to operate at the first discharge flow rate Y. However, when the flow channel is obstructed or other factors cause the reduction in internal pressure to be less than ideal or to fail to decrease, the controller will increase the pressure reducing pump's discharge flow rate to control the pressure. Conversely, if the pressure reducing pump's discharge flow rate is large and the reduction in internal pressure is significant, the controller will decrease the pressure reducing pump's discharge flow rate to make the pressure regulation process more stable.

[0045] In some examples, the controller controlling the pressure control pump to increase intracavitary pressure includes: the controller controlling the injection flow rate of the booster pump to a first injection flow rate to increase the intracavitary pressure; when the booster pump operates at the first injection flow rate for a third time, and the increase in intracavitary pressure is less than a first preset increase value, the controller increases the injection flow rate of the booster pump. The third time and the first preset increase value are dynamically controlled by a PID control algorithm. The controller increases the proportional coefficient Kp of the PID control algorithm to improve the response speed of the injection flow rate, thereby increasing the injection flow rate of the booster pump. Since excessively rapid pressure increase may cause pressure oscillations and damage to human tissues, the third time can be set to, for example, a value within 0.1s-2.0s. The first preset increase value is the minimum effective pressure increase value expected to be seen within the third time period. The first preset increase value is adjusted according to the total target increase value of the intracavitary pressure, which is the difference between the set target pressure value (the ideal intracavitary pressure value to be maintained) and the pressure value collected in real time by the current pressure sensor. Therefore, the intelligent pressure control system of this medical device can use the PID control algorithm to control the intracavitary pressure, thereby effectively and stably maintaining the intracavitary pressure within the required range.

[0046] In some examples, the controller's control of the pressure control pump to increase intracavitary pressure includes: when the booster pump operates at the first injection flow rate for a fourth time, and the increase in intracavitary pressure exceeds a second preset increase value, the controller reduces the injection flow rate of the booster pump. The fourth time and the second preset increase value are dynamically controlled by a PID control algorithm. The controller reduces the proportional coefficient Kp of the PID control algorithm, making the operation of the booster pump smoother and avoiding overly aggressive adjustments that could lead to pressure oscillations. In a single adjustment cycle, the fourth time is greater than or equal to the third time, and the second preset increase value is greater than the first preset increase value, to avoid drastic fluctuations in flow rate. However, throughout the entire adjustment process, the adjustment time and preset increase value change dynamically each time; there is no fixed comparison relationship between the third time and the fourth time, or between the first preset increase value and the second preset increase value. Therefore, this intelligent pressure control system for medical devices can utilize a PID control algorithm to control intracavitary pressure, thereby effectively maintaining the intracavitary pressure within the required range.

[0047] For example, when the pressure value is less than the second pressure threshold A2, such as A2-30 mmHg, the booster pump's injection flow rate will be determined as the first injection flow rate Z according to the preset PID algorithm, and the controller will control the booster pump to operate at the first injection flow rate Z. However, if the increase in intracavity pressure is not ideal or does not rise continuously, the controller will increase the booster pump's injection flow rate to achieve pressure control. Conversely, if the increase in intracavity pressure is large, the controller will decrease the booster pump's injection flow rate to make the pressure regulation process more stable.

[0048] In some examples, such as Figure 3 As shown, the intelligent pressure control system 100 for medical devices also includes an alarm device 150, which is communicatively connected to the controller 130 and configured to issue an alarm signal. When the first comparison result and the second comparison result deviate from each other, the controller controls the alarm device 150 to issue an alarm signal. The deviation between the first comparison result and the second comparison result means that one comparison result is greater than the upper limit warning line of the corresponding preset threshold, while the other comparison result is less than the lower limit warning line of the corresponding preset threshold.

[0049] In some examples, when the first comparison result is a pressure value greater than a first pressure threshold and the second comparison result is a distance less than a second distance threshold, or when the first comparison result is a pressure value less than the second pressure threshold and the second comparison result is a distance greater than the first distance threshold, the controller controls the alarm device to issue an alarm signal. That is, when the pressure value directly measured by the pressure sensor deviates from the pressure value reflected by the distance between the image sensor and the intracavitary tissue obtained through image recognition technology (e.g., inconsistent with a preset threshold), the intelligent pressure control system of this medical device can issue an alarm signal through the alarm device. This indicates that the pressure sensor or image sensor has malfunctioned or that the pressure sensor is blocked, prompting medical personnel to handle the medical device (e.g., clean the tip of an endoscope or medical water jet) to correct the information error and improve the probability of accurate pressure or distance readings.

[0050] In some examples, the alarm device described above may be at least one of a display device and a buzzer, with the display device configured to display a warning image and the buzzer configured to emit a warning sound. Of course, embodiments of this disclosure include, but are not limited to, the alarm device described above may also include other types of components, such as vibration components.

[0051] For example, the aforementioned display devices may include, for example, liquid crystal displays (LCDs), organic light-emitting diode displays (OLEDs), electronic ink screens, plasma displays, and other display devices.

[0052] In some examples, such as Figure 3 As shown, the controller 130 mentioned above includes an image recognition module 160, which is configured to perform image recognition on an environmental image to obtain the distance between the image sensor and the intracavitary tissue.

[0053] In some examples, the image recognition module 160 calculates brightness, color, and saturation information from the environmental image captured by the image sensor (using Laplace and K-means methods). The image recognition module 160 then performs frame-by-frame analysis on the calculated values ​​and performs time-series analysis (moving average, summation, integration, and differentiation, etc.) to determine the relative distance between objects in the image and the image sensor, i.e., the distance between the image sensor and the intracavitary tissue.

[0054] The following is a schematic description of the operation of the intelligent pressure control system for medical devices provided in this embodiment: First, a pressure sensor (e.g., a miniature pressure sensor) is installed at the end of a medical device, such as an endoscope or a medical water jet, or on a pressure pipeline that needs to be monitored. An image sensor (e.g., a charge-coupled device, CCD) is installed at the end of the endoscope or laparoscope to acquire environmental image information. Second, the pressure sensor transmits the monitored pressure value to the controller, and the image sensor transmits the acquired environmental image to the controller. Then, the controller analyzes the environmental image information acquired by the image sensor based on the pressure data acquired by the pressure sensor and in conjunction with an image recognition algorithm to obtain the distance between the image sensor and the intracavitary tissue. The controller derives the current pressure control strategy based on the pressure data acquired by the pressure sensor and the distance value acquired by the image sensor. Finally, the controller uses a PID control algorithm to control the pressurizing pump and the depressurizing pump to achieve precise control of the intracavitary pressure and maintain it within a certain range.

[0055] At least one embodiment of this disclosure also provides a method for intelligent pressure control of a medical device. Figure 4 This is a flowchart illustrating an intelligent pressure control method for a medical device according to an embodiment of this disclosure. Figure 4 As shown, the intelligent pressure control method for this medical device includes the following steps:

[0056] S401: Monitors the internal pressure of the cavity and collects pressure values ​​through a pressure sensor.

[0057] S402: Acquires environmental images via an image sensor.

[0058] S403: Compare the pressure value collected by the pressure sensor with the preset pressure threshold, and output the first comparison result.

[0059] Therefore, the pressure value collected by the pressure sensor can be used to directly determine whether the pressure inside the cavity is within a suitable range.

[0060] S404: Obtain the distance between the image sensor and the tissue based on the environmental image, compare the distance with a preset distance threshold, and output a second comparison result.

[0061] Therefore, the distance between the image sensor and the tissue can be determined by using environmental images acquired by the image sensor.

[0062] S405: Control the pressure control pump to control the pressure inside the chamber based on the first comparison result and the second comparison result.

[0063] In the cavities or other elastic containers of the human body, the distance between the inner wall of the cavity or elastic container and the image sensor is directly related to the pressure within the cavity or elastic container. That is, the greater the pressure and the larger the volume, the greater the distance; conversely, the lower the pressure and the smaller the volume, the shorter the distance. Therefore, the distance between the image sensor and the tissue can reflect the magnitude of the intracavitary pressure.

[0064] In the intelligent pressure control method for medical devices provided in this disclosure, a pressure sensor is used to directly monitor the intracavitary pressure, and an image sensor and image recognition technology are used to obtain the distance between the image sensor and the intracavitary tissue to simultaneously monitor the intracavitary pressure. This achieves monitoring of the intracavitary pressure through two independent methods. Therefore, if either the pressure sensor or the image sensor fails, or if the data collected by both deviates (e.g., the pressure display is extremely low but the image display distance is extremely far), the abnormal state can be identified promptly and an alarm mechanism can be triggered. This avoids dangerous actions based on a single erroneous data point (e.g., continuously increasing pressure when it is too high), thus significantly improving the stability and robustness of the intelligent pressure control system for medical devices. Furthermore, compared to physical sensors, obtaining the distance between the image sensor and the tissue to assist in judging the intracavitary pressure also improves the response speed and increases the measurement range, and avoids the problem of physical sensors being easily affected by environmental factors, reducing environmental dependence. Therefore, this intelligent pressure control system for medical devices can also achieve high-precision, fast-response pressure control.

[0065] On the other hand, based on the first and second comparison results mentioned above, the pressure control pump is used to control the intracavitary pressure. This allows for monitoring of the intracavitary pressure using two different methods. If either monitoring method indicates that the intracavitary pressure is outside the safe operating range, the pressure is immediately adjusted, increasing the accuracy and speed of pressure regulation, improving safety and reliability, and avoiding the increased costs associated with using two sets of physical sensors. Therefore, this intelligent pressure control system for medical devices achieves high precision, rapid response, and cost-effective, environmentally-dependent pressure control technology. It should be noted that compared to traditional physical sensors, image sensors are less expensive and easier to install and maintain. Furthermore, because image sensors are less affected by environmental factors such as temperature, humidity, and electromagnetic interference, this intelligent pressure control system for medical devices has a wider range of applications and greater adaptability.

[0066] It should be noted that the aforementioned intracavitary pressure refers to the fluid pressure formed by the infusion medium (such as saline) within the cavity where the medical device is located. The term "intracavitary" refers to the target anatomical or physiological cavity where the medical device is located, such as the natural cavities of the bladder and prostate. Of course, embodiments of this disclosure include, but are not limited to, the aforementioned intracavitary pressure may also be the internal pressure formed by the infusion medium in other elastic containers, where these other elastic containers do not include cavities within a biological body. For example, the aforementioned intracavitary pressure may also be the pressure within the space formed by a container of a non-biological cavity outside the aforementioned pressure sensor and image sensor.

[0067] In some examples, the aforementioned preset pressure thresholds include a first pressure threshold A1 and a second pressure threshold A2, where the first pressure threshold A1 is greater than the second pressure threshold A2. Similarly, the aforementioned preset distance thresholds include a first distance threshold B1 and a second distance threshold B2, where the first distance threshold B1 is greater than the second distance threshold B2. A preset correspondence exists between the preset pressure thresholds and the preset distance thresholds. That is, the first pressure threshold A1 corresponds to the first distance threshold B1, and the second pressure threshold A2 corresponds to the second distance threshold B2. In some examples, the first distance threshold B1 is the distance threshold corresponding to the externally calibrated first pressure threshold A1, and the second distance threshold B2 is the distance threshold corresponding to the externally calibrated second pressure threshold A2. Therefore, by setting the first and second pressure thresholds, the intracavitary pressure can be better controlled. Furthermore, by making the preset pressure thresholds correspond to the preset distance thresholds, this intelligent pressure control system for medical devices achieves mutual mapping and real-time comparison of data from different sensors (physical pressure and optical images). This not only provides redundant verification when a single sensor exhibits hidden drift or error, but also predicts the dynamic change trend of intracavitary pressure in advance, thereby guiding the PID algorithm to achieve smoother and faster dynamic pressure regulation. It avoids the pressure oscillations that are easily caused by traditional single threshold control, and uses the distance between the image sensor and the intracavitary tissue to simultaneously monitor the magnitude of intracavitary pressure, increasing the accuracy and response speed of pressure regulation.

[0068] In some examples, controlling the pressure control pump to control the intracavitary pressure based on the first comparison result and the second comparison result includes: when the first comparison result and the second comparison result do not deviate, and either comparison result is not within the two-dimensional safe working area formed by [second pressure threshold A2, first pressure threshold A1] and [second distance threshold B2, first distance threshold B1], then the pressure control pump is controlled to control the intracavitary pressure. Specifically, when the first comparison result is not within [second pressure threshold A2, first pressure threshold A1] or the second comparison result is not within [second distance threshold B2, first distance threshold B1], the pressure control pump is controlled to control the intracavitary pressure. The above-mentioned first comparison result and second comparison result not deviating means: one comparison result is greater than the upper limit warning line of the corresponding preset threshold, while the other comparison result is not less than the lower limit warning line of the corresponding preset threshold; or one comparison result is less than the lower limit warning line of the corresponding preset threshold, and the other comparison result is not greater than the upper limit warning line of the corresponding preset threshold. For example, the first comparison result and the second comparison result do not deviate from each other if: the first comparison result is that the pressure value is greater than the first pressure threshold A1 and the second comparison result is that the distance is not less than the second distance threshold B2, or the second comparison result is that the distance is greater than the first distance threshold B1 and the first comparison result is that the pressure value is not less than the second pressure threshold A2; the first comparison result is that the pressure value is less than the second pressure threshold A2 and the second comparison result is that the distance is not greater than the first distance threshold B1, or the second comparison result is that the distance is less than the second distance threshold B2 and the first comparison result is that the pressure value is not greater than the first pressure threshold A1.

[0069] In some examples, the above-mentioned control of the pressure control pump to control the intracavitary pressure based on the first comparison result and the second comparison result includes: when the first comparison result and the second comparison result do not deviate, when the first comparison result is a pressure value greater than a first pressure threshold A1, or when the second comparison result is a distance greater than a first distance threshold B1, the controller controls the pressure control pump to reduce the intracavitary pressure; when the first comparison result and the second comparison result do not deviate, when the first comparison result is a pressure value less than a second pressure threshold A2, or when the second comparison result is a distance less than a second distance threshold B2, the controller controls the pressure control pump to increase the intracavitary pressure. In other words, when the first comparison result is that the pressure value is greater than the first pressure threshold A1 and the second comparison result is that the distance is not less than the second distance threshold B2, or when the second comparison result is that the distance is greater than the first distance threshold B1 and the first comparison result is that the pressure value is not less than the second pressure threshold A2, the controller controls the pressure control pump to reduce the intracavitary pressure. When the first comparison result is that the pressure value is less than the second pressure threshold A2 and the second comparison result is that the distance is not greater than the first distance threshold B1, or when the second comparison result is that the distance is less than the second distance threshold B2 and the first comparison result is that the pressure value is not greater than the first pressure threshold A1, the controller controls the pressure control pump to increase the intracavitary pressure. Thus, this intelligent pressure control system for medical devices maintains the state of the target surgical cavity within a two-dimensional safe working area composed of [second pressure threshold A2, first pressure threshold A1] and [second distance threshold B2, first distance threshold B1] by monitoring two independent physical quantities: pressure and distance. Once any measured value exceeds the preset safety boundary of the two-dimensional safe working area, the corresponding pressure adjustment program will be immediately activated until the state of the target surgical cavity returns to the two-dimensional safe working area. As a result, the intelligent pressure control system for this medical device improves response speed, safety, and reliability.

[0070] In some examples, the aforementioned pressure control pump includes a booster pump and a depressurizer pump. Controlling the pressure control pump to regulate intracavitary pressure based on a first comparison result and a second comparison result includes: turning on the booster pump and turning off the depressurizer pump to increase intracavitary pressure; and turning off the booster pump and turning on the depressurizer pump to decrease intracavitary pressure. Thus, this intelligent pressure control method for medical devices employs dual pumps to regulate intracavitary pressure, thereby enabling finer and more precise regulation.

[0071] In some examples, the aforementioned control of the pressure-reducing pump to lower intracavitary pressure includes: controlling the discharge flow rate of the pressure-reducing pump to a first discharge flow rate to lower the intracavitary pressure; when the pressure-reducing pump operates at the first discharge flow rate for a first time, and the decrease in intracavitary pressure is less than a first preset decrease value, increasing the discharge flow rate of the pressure-reducing pump. The first time and the first preset decrease value are dynamically controlled by a PID (Proportional-Integral-Derivative) control algorithm. The controller increases the proportional coefficient Kp of the PID control algorithm to improve the response speed of the discharge flow rate, thereby increasing the discharge flow rate of the pressure-reducing pump. The first time can be, for example, a value between 400ms and 1s. The first preset decrease value is the minimum effective pressure decrease value expected to be seen within the first time. The first preset decrease value is adjusted according to the total target decrease value of the intracavitary pressure, which is the difference between the pressure value collected in real time by the pressure sensor 110 and the set target pressure value (the ideal intracavitary pressure value to be maintained). Thus, this intelligent pressure control method for medical devices can utilize a PID control algorithm to control the intracavitary pressure, thereby effectively and stably maintaining the intracavitary pressure within the required range.

[0072] In some examples, controlling the pressure pump to reduce intracavitary pressure also includes: when the pressure pump operates at the first discharge flow rate for a second time, and the decrease in intracavitary pressure exceeds a second preset decrease value, reducing the discharge flow rate of the pressure pump. The second time and the second preset decrease value are dynamically controlled by a PID control algorithm. The controller reduces the proportional coefficient Kp of the PID control algorithm, making the operation of the pressure pump smoother and avoiding over-adjustment that could lead to pressure oscillations. In a single adjustment cycle, the second time is greater than or equal to the first time, and the second preset decrease value is greater than the first preset decrease value, to avoid drastic fluctuations in flow rate. However, throughout the entire adjustment process, the adjustment time and preset decrease value change dynamically each time; there is no fixed comparison relationship between the first and second times, or between the first and second preset decrease values. Therefore, this intelligent pressure control method for medical devices can utilize a PID control algorithm to control intracavitary pressure, effectively maintaining the intracavitary pressure within the required range.

[0073] For example, the second time and the first time mentioned above can be the same or different.

[0074] In some examples, controlling the pressure control pump to increase intracavitary pressure includes: controlling the injection flow rate of the booster pump to a first injection flow rate to increase the intracavitary pressure; when the booster pump operates at the first injection flow rate for a third time, and the increase in intracavitary pressure is less than a first preset increase value, increasing the injection flow rate of the booster pump. The third time and the first preset increase value are dynamically controlled by a PID control algorithm. The controller increases the proportional coefficient Kp of the PID control algorithm to improve the response speed of the injection flow rate, thereby increasing the injection flow rate of the booster pump. Since excessively rapid pressure increase may cause pressure oscillations and damage to human tissue, the third time can be set to, for example, a value within 0.1s-2.0s. The first preset increase value is the minimum effective pressure increase value expected to be seen within the third time period. The first preset increase value is adjusted according to the total target increase value of the intracavitary pressure, which is the difference between the set target pressure value (the ideal intracavitary pressure value to be maintained) and the pressure value collected in real time by the current pressure sensor. Therefore, this intelligent pressure control system for medical devices can use a PID control algorithm to control the intracavitary pressure, thereby effectively and stably maintaining the intracavitary pressure within the required range.

[0075] In some examples, controlling the pressure of the booster pump to increase intracavitary pressure includes: when the booster pump operates at the first injection flow rate for a fourth time, and the increase in intracavitary pressure exceeds a second preset increase value, reducing the injection flow rate of the booster pump. The fourth time and the second preset increase value are dynamically controlled by a PID control algorithm. The controller reduces the proportional coefficient Kp of the PID control algorithm, making the operation of the booster pump smoother and avoiding over-adjustment that could lead to pressure oscillations. In a single adjustment cycle, the fourth time is greater than or equal to the third time, and the second preset increase value is greater than the first preset increase value, to avoid drastic fluctuations in flow rate. However, throughout the entire adjustment process, the adjustment time and preset increase value change dynamically each time; there is no fixed comparison relationship between the third time and the fourth time, or between the first preset increase value and the second preset increase value. Therefore, this intelligent pressure control system for medical devices can utilize a PID control algorithm to control intracavitary pressure, thereby effectively maintaining the intracavitary pressure within the required range.

[0076] In some examples, the aforementioned intelligent pressure control method for medical devices further includes: when the first comparison result and the second comparison result deviate, the controller controls the alarm device 150 to issue an alarm signal; the deviation between the first comparison result and the second comparison result means that one comparison result is greater than the upper limit warning line of the corresponding preset threshold, while the other comparison result is less than the lower limit warning line of the corresponding preset threshold. In some examples, when the first comparison result is that the pressure value is greater than the first pressure threshold and the second comparison result is that the distance is less than the second distance threshold, or when the first comparison result is that the pressure value is less than the second pressure threshold and the second comparison result is that the distance is greater than the first distance threshold, the controller controls the alarm device to issue an alarm signal. That is, when the pressure value directly measured by the pressure sensor deviates from the pressure value reflected by the distance between the image sensor and the intracavitary tissue obtained through image recognition technology (e.g., inconsistent with the relationship of the preset threshold), the intelligent pressure control system for medical devices can issue an alarm signal through the alarm device, thereby indicating that the pressure sensor or image sensor has malfunctioned or that the pressure sensor is blocked, prompting medical personnel to handle the medical device (e.g., clean the tip of the endoscope or medical water jet) to correct the information error and improve the probability of accurate pressure or distance reading.

[0077] At least one embodiment of this application also provides a computer-readable storage medium, which includes a stored computer program that executes the above-described intelligent pressure control method for medical devices when the computer program is run.

[0078] For example, the computer-readable storage medium may include ROM, RAM, a magnetic disk, or an optical disk. The storage medium may also include non-volatile or non-transitory memory.

[0079] This application also provides an electronic device, including a processor and a memory connected in communication, wherein the memory stores a calculation program, and the processor is configured to execute the calculator program to perform the intelligent pressure control method for medical devices provided in any of the above examples.

[0080] It should be understood that, in the embodiments of this application, the processor or controller can be a central processing unit (CPU), or it can be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor.

[0081] It should also be understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate synchronous DRAM (DDR SDRAM), enhanced synchronous DRAM (ESDRAM), synchronous linked DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0082] The following points need to be explained:

[0083] (1) The accompanying drawings of the embodiments of this disclosure only involve the structures involved in the embodiments of this disclosure, and other structures can be referred to the general design.

[0084] (2) Where there is no conflict, features of the same embodiment and different embodiments of this disclosure may be combined with each other.

[0085] The above description is merely an exemplary embodiment of this disclosure and is not intended to limit the scope of protection of this disclosure, which is determined by the appended claims.

Claims

1. A medical device intelligent pressure control system, characterized in that, include: A pressure sensor is configured to monitor the pressure inside the cavity in real time and collect pressure values; An image sensor is configured to acquire images of the environment; The controller is communicatively connected to the pressure sensor and the image sensor. as well as The pressure control pump is communicatively connected to the controller. The controller is configured to receive the pressure value collected by the pressure sensor, compare the pressure value with a preset pressure threshold, and output a first comparison result. The controller is also configured to receive the environmental image acquired by the image sensor, obtain the distance between the image sensor and the intracavitary tissue based on the environmental image, compare the distance with a preset distance threshold, and output a second comparison result. The controller is also configured to control the pressure control pump to control the intracavitary pressure based on the first comparison result and the second comparison result. The preset pressure threshold includes a first pressure threshold and a second pressure threshold, wherein the first pressure threshold is greater than the second pressure threshold; the preset distance threshold includes a first distance threshold and a second distance threshold, wherein the first distance threshold is greater than the second distance threshold; and there is a preset correspondence between the preset pressure threshold and the preset distance threshold. When the first comparison result and the second comparison result do not deviate, when the first comparison result is that the pressure value is greater than the first pressure threshold, or when the second comparison result is that the distance is greater than the first distance threshold, the controller controls the pressure control pump to reduce the intracavitary pressure. When the first comparison result and the second comparison result do not deviate, when the first comparison result is that the pressure value is less than the second pressure threshold, or when the second comparison result is that the distance is less than the second distance threshold, the controller controls the pressure control pump to increase the intracavitary pressure.

2. The intelligent pressure control system for medical devices according to claim 1, characterized in that, The first comparison result and the second comparison result do not deviate from each other as follows: The first comparison result is that the pressure value is greater than the first pressure threshold and the second comparison result is that the distance is not less than the second distance threshold; the second comparison result is that the distance is greater than the first distance threshold and the first comparison result is that the pressure value is not less than the second pressure threshold; the first comparison result is that the pressure value is less than the second pressure threshold and the second comparison result is that the distance is not greater than the first distance threshold; or the second comparison result is that the distance is less than the second distance threshold and the first comparison result is that the pressure value is not greater than the first pressure threshold.

3. The intelligent pressure control system for medical devices according to claim 2, characterized in that, The pressure control pump includes a booster pump and a depressurizer pump, and the controller is configured to turn on the booster pump and turn off the depressurizer pump to increase the intracavitary pressure, and turn off the booster pump and turn on the depressurizer pump to decrease the intracavitary pressure.

4. The intelligent pressure control system for medical devices according to claim 3, characterized in that, When the first comparison result and the second comparison result do not deviate, when the first comparison result is that the pressure value is greater than the first pressure threshold, or when the second comparison result is that the distance is greater than the first distance threshold, the controller controls the pressure control pump to reduce the intracavity pressure, including: The controller controls the discharge flow rate of the pressure reducing pump to a first discharge flow rate in order to reduce the pressure inside the cavity; When the pressure reducing pump operates at the first discharge flow rate for a first time and the decrease in the intracavity pressure is less than a first preset decrease value, the controller increases the discharge flow rate of the pressure reducing pump; and / or, when the pressure reducing pump operates at the first discharge flow rate for a second time and the decrease in the intracavity pressure is greater than a second preset decrease value, the controller decreases the discharge flow rate of the pressure reducing pump.

5. The intelligent pressure control system for medical devices according to claim 3, characterized in that, When the first comparison result and the second comparison result do not deviate, when the first comparison result is that the pressure value is less than the second pressure threshold, or when the second comparison result is that the distance is less than the second distance threshold, the controller controls the pressure control pump to increase the intracavitary pressure, including: The controller controls the injection flow rate of the booster pump to a first injection flow rate to increase the pressure inside the cavity; When the booster pump operates at the first injection flow rate for a third time and the rise in the cavity pressure is less than a first preset rise value, the controller increases the injection flow rate of the booster pump. And / or, when the booster pump operates at the first injection flow rate for a fourth time and the rise in the cavity pressure is greater than a second preset rise value, the controller decreases the injection flow rate of the booster pump.

6. The intelligent pressure control system for medical devices according to any one of claims 2-5, characterized in that, Also includes: An alarm device, communicatively connected to the controller, is configured to emit an alarm signal. Specifically, when the first comparison result is that the pressure value is greater than the first pressure threshold and the second comparison result is that the distance is less than the second distance threshold, or when the first comparison result is that the pressure value is less than the second pressure threshold and the second comparison result is that the distance is greater than the first distance threshold, the controller controls the alarm device to issue an alarm signal.

7. The intelligent pressure control system for medical devices according to claim 6, characterized in that, The alarm device includes at least one of a display device and a buzzer, the display device being configured to display a warning image and the buzzer being configured to emit a prompt sound.

8. The intelligent pressure control system for medical devices according to any one of claims 1-5, characterized in that, The controller includes an image recognition module configured to perform image recognition on the environmental image to obtain the distance between the image sensor and the intracavitary tissue.

9. A method for intelligent pressure control in a medical device, characterized in that, include: The pressure inside the cavity is monitored by a pressure sensor, and the pressure value is collected. Environmental images are acquired using an image sensor; The pressure value collected by the pressure sensor is compared with a preset pressure threshold, and a first comparison result is output. The distance between the image sensor and the intracavitary tissue is obtained based on the environmental image, and the relationship between the distance and a preset distance threshold is compared, and a second comparison result is output. as well as The pressure control pump is controlled according to the first comparison result and the second comparison result to control the pressure inside the cavity; The preset pressure threshold includes a first pressure threshold and a second pressure threshold, wherein the first pressure threshold is greater than the second pressure threshold; the preset distance threshold includes a first distance threshold and a second distance threshold, wherein the first distance threshold is greater than the second distance threshold; and there is a preset correspondence between the preset pressure threshold and the preset distance threshold. Controlling the pressure control pump to control the intracavitary pressure according to the first comparison result and the second comparison result includes: when the first comparison result and the second comparison result do not deviate, when the first comparison result is that the pressure value is greater than the first pressure threshold, or when the second comparison result is that the distance is greater than the first distance threshold, the controller controls the pressure control pump to reduce the intracavitary pressure; When the first comparison result and the second comparison result do not deviate, when the first comparison result is that the pressure value is less than the second pressure threshold, or when the second comparison result is that the distance is less than the second distance threshold, the controller controls the pressure control pump to increase the intracavitary pressure.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored computer program that, when executed, performs the intelligent pressure control method for medical devices according to claim 9.

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