Smoke exhaust device, pneumoperitoneum machine and smoke exhaust method

Abstract

The invention discloses a smoke exhaust device, a pneumoperitoneum machine and a smoke exhaust method, and relates to the technical field of medical instruments. The smoke exhaust device comprises an image acquisition module, an image analysis module, a smoke exhaust module, a smoke sensor and a controller, the image acquisition module is used for acquiring an image of a preset area in the body of a patient, and the image analysis module is used for analyzing the acquired image based on a preset reasoning algorithm so as to generate a corresponding image analysis result. When the controller judges that smoke exists in the preset area based on the image analysis result, the smoke exhaust module is started, and the smoke in the body of the patient is exhausted out of the body through a preset smoke exhaust channel. Meanwhile, the smoke sensor in the preset smoke exhaust channel transmits the collected smoke particle concentration to the controller, so that the controller can adaptively adjust the smoke exhaust flow of the smoke exhaust module based on the smoke particle concentration, and the smoke particle concentration in the preset area is not higher than the preset particle concentration; the smoke exhaust efficiency and the pneumoperitoneum stability can be both considered.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a smoke extraction device, an insufflator, and a smoke extraction method. Background Technology

[0002] During internal surgeries using electrocautery or ultrasonic scalpels, a large amount of dense smoke is often generated inside the patient's body, obscuring the camera's view. To ensure a smooth and successful surgery, an insufflator with smoke extraction capabilities can be used to remove the dense smoke generated inside the patient, preventing blurred vision.

[0003] However, the current pneumoperitoneum machine uses a manually set constant flow rate for smoke extraction, making it difficult to maintain a balance between the extraction flow rate and the smoke generation rate throughout the entire surgical procedure. When the smoke is dense and the extraction flow rate is insufficient, a large amount of smoke will remain in the abdominal cavity, causing the lens to fog up and the field of vision to become blurred, requiring repeated interruptions of the surgery to wipe the lens. Conversely, when the smoke is sparse and exhaust is continuously performed at an excessively high flow rate, it will cause excessive consumption of the air source used to stabilize the body's pressure, leading to a sudden drop in abdominal pressure and increasing the difficulty of maintaining pneumoperitoneum. Both situations are detrimental to the successful execution of the surgery. Summary of the Invention

[0004] The main purpose of this application is to provide a smoke extraction device, an insufflator, and a smoke extraction method, aiming to solve the technical problem of balancing smoke extraction efficiency and insufflation stability during intraoperative surgery.

[0005] To achieve the above objectives, this application provides a smoke extraction device, which includes: an image acquisition module, an image analysis module, a smoke extraction module, a smoke sensor, and a controller; The image acquisition module is used to acquire images of a preset area and transmit the images to the image analysis module; The image analysis module is used to analyze the image features of the image based on a preset inference algorithm and send the corresponding image analysis results to the controller. The controller is used to activate the smoke exhaust module when it is determined that there is smoke in the preset area based on the image analysis results, so that the smoke is discharged through the preset smoke exhaust channel; The smoke sensor is installed in the preset smoke exhaust channel to collect the smoke particle concentration and transmit the smoke particle concentration to the controller; The controller is also used to adjust the exhaust flow rate of the exhaust module based on the smoke particle concentration and the preset concentration-flow mapping table, so that the smoke particle concentration is not higher than the preset particle concentration.

[0006] In one embodiment, the smoke extraction device further includes: a filter module; The inlet of the filter module is connected to the outlet of the preset smoke exhaust channel; The filtration module is used to filter the gas discharged from the preset smoke exhaust channel to remove the smoke.

[0007] In one embodiment, the filtering module includes: a first filter layer to a sixth filter layer stacked sequentially, wherein the first filter layer is close to the inlet of the filtering module; The first filter layer, the third filter layer, and the fifth filter layer are filled with pre-filter cotton. The second filter layer is equipped with a HEPA filter; The fourth filter layer is filled with activated carbon; The sixth filter layer is filled with oil-absorbing cotton.

[0008] In one embodiment, the smoke exhaust device further includes: a sterilization module; The outlet of the sterilization module is connected to the inlet of the preset smoke exhaust channel; The controller is also used to activate the sterilization module when the smoke exhaust module is activated; The sterilization module is used to sterilize the gas that is about to enter the preset smoke exhaust channel.

[0009] In one embodiment, the sterilization module includes: a plasma emitter and an ultraviolet sterilization lamp; The plasma emitter is used to emit plasma into the gas that is about to enter the preset exhaust channel when it is started. The ultraviolet sterilization lamp is used to emit ultraviolet light onto the gas that is about to enter the preset exhaust channel when it is started.

[0010] In one embodiment, the smoke extraction device includes: a display module; The controller is also used to transmit the smoke particle concentration to the display module; The display module is used to show the concentration of smoke particles to the user.

[0011] In one embodiment, the display module is a touch screen; The touch screen is also used to send corresponding manual control information to the controller in response to a manual control command triggered by the user. The controller is further configured to, upon receiving the manual control information, adjust the smoke exhaust flow rate of the smoke exhaust module based on the manual control information, so that the smoke exhaust flow rate is maintained at a set flow rate.

[0012] In addition, to achieve the above objectives, this application also proposes an insufflator, which includes: an air supply device, a main unit, and a smoke exhaust device as described above; The controller of the smoke exhaust device communicates with the host computer to transmit the smoke exhaust flow rate of the smoke exhaust module to the host computer. The host is used to adjust the gas supply flow of the gas supply device based on the exhaust flow rate, so that the exhaust flow rate and the gas supply flow rate maintain a preset ratio.

[0013] Furthermore, to achieve the above objectives, this application also proposes a smoke extraction method applied to the smoke extraction device described above, wherein the steps of the smoke extraction method include: The image acquisition module acquires images of a preset area; The image analysis module analyzes the image features based on a preset inference algorithm to obtain the corresponding image analysis results. When it is determined from the image analysis results that smoke exists in the preset area, the smoke exhaust module is activated so that the smoke is discharged through the preset smoke exhaust channel. The smoke particle concentration is collected by a smoke sensor installed in the preset smoke exhaust channel; Based on the mapping table between smoke particle concentration and preset concentration flow rate, the smoke exhaust flow rate of the smoke exhaust module is adjusted so that the smoke particle concentration is not higher than the preset particle concentration.

[0014] In one embodiment, the smoke exhaust device further includes a filtration module and a sterilization module. After the step of activating the smoke exhaust module to allow the smoke to be discharged through the preset smoke exhaust channel when it is determined that smoke exists in the preset area based on the image analysis result, the device further includes: The sterilization module sterilizes the gas that is about to enter the preset smoke exhaust channel; The gas discharged from the preset smoke exhaust channel is filtered by the filtration module to remove the smoke.

[0015] This application provides a smoke extraction device, an insufflator, and a smoke extraction method. The smoke extraction device includes: an image acquisition module, an image analysis module, a smoke extraction module, a smoke sensor, and a controller. The image acquisition module is used to acquire images of a preset area and transmit the images to the image analysis module. The image analysis module is used to analyze the image features of the images based on a preset inference algorithm and send the corresponding image analysis results to the controller. The controller is used to activate the smoke extraction module when it is determined based on the image analysis results that smoke exists in the preset area, so that the smoke is discharged through a preset smoke extraction channel. The smoke sensor is disposed in the preset smoke extraction channel and is used to acquire the smoke particle concentration and transmit the smoke particle concentration to the controller. The controller is also used to adjust the smoke extraction flow rate of the smoke extraction module based on the smoke particle concentration and a preset concentration-flow mapping table, so that the smoke particle concentration is not higher than a preset particle concentration.

[0016] The image acquisition module acquires images of a preset area within the patient's body. The image analysis module analyzes the acquired images based on a preset inference algorithm, generating corresponding image analysis results. When the controller determines the presence of smoke in the preset area based on the image analysis results, it activates the smoke extraction module to expel the smoke from the patient's body through a preset smoke extraction channel. Simultaneously, the smoke sensor within the preset smoke extraction channel transmits the collected smoke particle concentration to the controller. This allows the controller to adaptively adjust the smoke extraction flow rate of the smoke extraction module based on the smoke particle concentration, ensuring that the smoke particle concentration in the preset area does not exceed a preset particle concentration. This balances smoke extraction efficiency and pneumoperitoneum stability, thereby ensuring the smooth conduct of internal surgery and reducing surgical difficulty. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the system structure provided in Embodiment 1 of the smoke exhaust device of this application; Figure 2 This is a schematic diagram of the physical structure of the smoke exhaust device according to Embodiment 1 of this application; Figure 3 This is a structural schematic diagram of one side of the casing of the smoke exhaust device of this application; Figure 4 This is a schematic diagram of the filtering module in this application; Figure 5 This is a schematic diagram of the sterilization module of this application; Figure 6 This is a schematic diagram of the system structure provided in Embodiment 1 of the pneumoperitoneum machine of this application; Figure 7 This is a schematic flowchart of Embodiment 1 of the smoke exhaust method of this application.

[0020] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0022] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0023] This application presents a first embodiment of a smoke extraction device; please refer to [reference needed]. Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 The smoke extraction device includes: an image acquisition module 10, an image analysis module 20, a smoke extraction module 30, a smoke sensor 40, and a controller 50; The image acquisition module 10 is used to acquire images of a preset area and transmit the images to the image analysis module 20; The image analysis module 20 is used to analyze the image features of the image based on a preset inference algorithm and send the corresponding image analysis results to the controller 50; The controller 50 is used to activate the smoke exhaust module 30 when it is determined that there is smoke in the preset area based on the image analysis result, so that the smoke is discharged through the preset smoke exhaust channel; The smoke sensor 40 is disposed in the preset smoke exhaust channel and is used to collect the smoke particle concentration of the smoke and transmit the smoke particle concentration to the controller 50; The controller 50 is also used to adjust the exhaust flow rate of the exhaust module 30 based on the smoke particle concentration and the preset concentration flow rate mapping table, so that the smoke particle concentration is not higher than the preset particle concentration.

[0024] It should be understood that, please refer to Figure 2The smoke extraction device is specifically an electrically driven unit installed on the insufflator. It has two air inlets and corresponding fans (not shown in the diagram) at its air inlet and outlet, respectively for drawing in and expelling gas. The air inlet is connected to the patient's body, and the outlet is connected to a dedicated exhaust gas recovery port in the operating room. This system extracts and expels gases and smoke from the patient's body, preventing them from entering the surgical field.

[0025] It should be noted that, please refer to Figure 2 In this embodiment, the smoke extraction device is equipped with a chassis, and the image acquisition module 10, image analysis module 20, controller 50, smoke sensor 40, smoke extraction module 30, and preset smoke extraction channel mentioned above are all housed inside the chassis. The smoke extraction module 30, smoke sensor 40, and image acquisition module 10 are located in the smoky area within the chassis, i.e., within or on the contact surface of the preset smoke extraction channel (where they can come into contact with smoke), while the controller 50 and image analysis module 20 are located in the smoke-free area within the chassis (where they will not come into contact with smoke).

[0026] It is easy to understand that the preset area can be understood as a spatial region of a specific capacity in the first half of the preset smoke exhaust channel, and the volume of the preset area is the same as the volume of the effective detection area of ​​the smoke sensor 40. When smoke is generated inside the patient's body, the smoke can be transmitted to the preset area of ​​the smoke exhaust device through the air duct. In this embodiment, the preset smoke exhaust channel refers to a pre-set transmission path for transmitting smoke and air (not a specific tubular channel). The image acquisition module 10, the smoke sensor 40, and the smoke exhaust module 30 can be installed in the preset smoke exhaust channel; therefore, it can also be understood as... Figure 2 The section "Smoke Sensor 40 - Image Acquisition Module 10 - Smoke Exhaust Module 30" shows one area. The image acquisition module 10 can be configured with a high-speed camera of a certain pixel count (at least 1 million pixels) and a certain depth of field, as well as several illumination lamps with a specific illuminance (e.g., 6500K) evenly distributed around the camera. The camera's optical axis is aligned with the center of the preset area to acquire images of that area. The illumination lamps are used to illuminate the preset area, thereby improving the quality of image acquisition.

[0027] It should be noted that, please refer to... Figure 1 and Figure 2In this embodiment, the smoke sensor 40 is specifically disposed inside or at the edge of the aforementioned preset area, and communicates with the controller 50. It can collect the number of smoke particles in the preset area at preset time intervals, thereby converting them into relevant electrical signals that can be used to characterize the smoke particle concentration, and transmitting them to the controller 50 so that the controller 50 can determine the smoke particle concentration in the preset space at the current moment. The smoke exhaust module 30 can specifically be a smoke extraction pump, which can draw smoke from the inlet to the outlet of the preset smoke exhaust channel by extracting air. Its start / stop and smoke exhaust flow rate are controlled by the controller 50.

[0028] It is easy to understand that the image analysis module 20 is equipped with a pre-set inference algorithm and an inference model. This inference model is a lightweight model that can be trained on a large number of smoke image materials of different types to form a high-precision inference algorithm to analyze the image features of the image, thereby quickly and accurately identifying whether smoke exists in the image. In this embodiment, the image analysis module 20 can establish communication relationships with the image acquisition module 10 and the controller 50 respectively. It can acquire the image acquired by the image acquisition module 10, analyze and identify the image features of the image based on the pre-set inference algorithm, generate an image analysis result indicating whether smoke exists in the image, and transmit the image analysis result to the controller 50. As a preferred approach, the image analysis module 20 and the image acquisition module 10 can be integrated. For example, an intelligent camera module can be used, which can both acquire images and act as an edge computing node to perform image inference analysis, thereby improving the system response speed.

[0029] It should be noted that, in this embodiment, the preset concentration-flow mapping table refers to a pre-stored mapping table between smoke particle concentration and the currently required smoke exhaust flow rate. It is used to characterize the minimum required smoke exhaust flow rate to reduce the smoke particle concentration at a specific concentration. The preset particle concentration refers to a smoke particle concentration threshold for a preset area, which theoretically corresponds to a value that prevents smoke inside the patient from interfering with endoscopy.

[0030] In a practical implementation, in a surgical scenario involving an electrosurgical unit, the smoke extraction device proposed in this embodiment can be connected to the surgical area within the patient's body via an air duct. When smoke is generated in the surgical area, it flows into a preset area within a preset smoke extraction channel through the air duct. At this time, the image acquisition module 10 first acquires an image of the preset area and transmits the acquired image to the image analysis module 20. The image analysis module 20 extracts and analyzes the image features based on a preset inference algorithm, thereby generating an image analysis result characterizing whether smoke exists in the preset area, and transmits it to the controller 50. When the controller 50 receives the image analysis result, if the image analysis result indicates the presence of smoke in the preset area, it controls the smoke extraction module 30 to start, beginning the extraction of smoke from the surgical area. Simultaneously, the smoke sensor 40, located within the preset smoke extraction channel, counts the smoke particles in the preset area (effective detection area) at preset intervals and transmits the corresponding smoke particle concentration to the controller 50 as an electrical signal. After acquiring the smoke particle concentration, the controller 50 can determine the target smoke exhaust flow rate by looking up a pre-stored preset concentration-flow mapping table. It then controls the smoke exhaust module 30 to adjust the current smoke exhaust flow rate to the target flow rate, ensuring that the smoke particle concentration no longer exceeds the preset particle concentration. Since the smoke particle concentration in the preset area is no longer higher than the preset particle concentration, it indicates that the smoke particle concentration inside the patient has decreased to a relatively low level. Therefore, the smoke concentration inside the patient will not interfere with the endoscope's operation, thus ensuring the smooth progress of the surgery.

[0031] Furthermore, in this embodiment, the chassis of the smoke exhaust device may also be equipped with various types of video input interfaces such as HDMI, DVI, and SDI (Video_in) and HDMI type video output interface (Video_out), and each video input interface (Video_in) and video output interface (Video_out) is electrically connected to the image analysis module 20.

[0032] It should be noted that, please refer to... Figure 2 as well as Figure 3 To understand, Figure 3 It describes Figure 2 The diagram shows a rear view of the chassis. In this embodiment, the video input interface (Video_in) can be used to connect to external video devices or image devices (not shown in the diagram), such as cameras, to transmit video signals provided by these devices to the image analysis module 20. The image analysis module 20 can sequentially perform frame extraction, image feature extraction, and image analysis on the video image corresponding to the received video signal, thereby identifying whether smoke exists within the video image. Different types of video input interfaces (Video_in) can be used to connect to different types of video devices or image devices.

[0033] It is easy to understand that the video output interface Video_out can be used to connect to another external image display device (also not shown in the figure), such as a display screen. In this embodiment, through the cooperation of the video input interface Video_in, the video output interface Video_out, and the image analysis module 20, video signal loop-out can be achieved. When the image analysis module 20 receives a video signal through the video input interface Video_in, it can also copy the received video signal and output it through the video output interface Video_out to support the display of the same video image on an external image display device.

[0034] It is worth noting that, in this embodiment, the image format of the video image can be 1920*1080 pixels p60.

[0035] Furthermore, in this embodiment, the smoke exhaust device further includes a filter module 60; The inlet of the filter module 60 is connected to the outlet of the preset smoke exhaust channel; The filtration module 60 is used to filter the gas discharged from the preset smoke exhaust channel to remove the smoke.

[0036] It should be noted that the inlet of the filter module 60 is connected to the outlet of the preset smoke exhaust channel, and the outlet of the filter module 60 can be set at the air outlet of the chassis (smoke exhaust device). It is mainly used to filter the gas when the gas and the smoke contained in the gas are discharged to the waste gas recovery port dedicated to the operating room, thereby greatly reducing the harm of harmful smoke particles in the exhaust gas to the hospital environment.

[0037] Furthermore, in this embodiment, the filtering module 60 includes: a first filtering layer 61 to a sixth filtering layer 66 stacked sequentially, wherein the first filtering layer 61 is close to the inlet of the filtering module 60; The first filter layer 61, the third filter layer 63 and the fifth filter layer 65 are filled with primary filter cotton. The second filter layer 62 is equipped with a HEPA filter; The fourth filter layer 64 is filled with activated carbon; The sixth filter layer 66 is filled with oil-absorbing cotton.

[0038] It should be noted that HEPA filters refer to High-Efficiency Particulate Air (HEPA) filters. For example... Figure 4As shown, in this embodiment, the primary filter cotton is used to intercept large particles or large oil droplets, such as blood mist, tissue debris, and oil droplets larger than 10 µm generated by the electrosurgical unit; the HEPA filter can intercept particles larger than 0.3 μm, such as smoke condensation nuclei, virus carriers, and carbonized tissue nanoparticles; activated carbon is mainly used to adsorb benzene-based odors generated by the electrosurgical unit; and oil-absorbing cotton is used to absorb residual oil mist and condensate droplets.

[0039] Furthermore, in this embodiment, the smoke exhaust device further includes: a sterilization module 70; The outlet of the sterilization module 70 is connected to the inlet of the preset smoke exhaust channel; The controller 50 is also used to activate the sterilization module 70 when the smoke exhaust module 30 is activated; The sterilization module 70 is used to sterilize the gas that is about to enter the preset smoke exhaust channel.

[0040] It should be understood that the generated smoke may contain bacteria or viral spores, and directly extracting the smoke could contaminate the sterile environment required by hospitals. Furthermore, even with activated carbon and HEPA filters installed, these can provide a humid environment conducive to bacterial growth, easily leading to secondary contamination.

[0041] It should be noted that the sterilization module 70 is electrically connected to the controller 50. In this embodiment, the inlet of the sterilization module 70 is connected to the air inlet of the chassis (smoke exhaust device), and the outlet of the sterilization module 70 is connected to the inlet of the preset smoke exhaust channel. When the controller 50 detects that the smoke exhaust module 30 needs to be activated (to extract smoke from the patient's body), it activates the sterilization module 70 to sterilize the gas drawn into the chassis (smoke exhaust device) and the smoke contained in the gas. This design ensures that bacteria and viruses attached to the smoke are killed immediately upon entering the chassis (smoke exhaust device), reducing the contamination of the sterile environment by bacteria or viruses.

[0042] It is worth noting that in this embodiment, when a sterilization module 70 and a filter module 60 are installed inside the chassis, the air duct installed at the air outlet of the chassis can directly discharge the filtered gas into the air, which can still ensure that it does not interfere with the surgical field and will not cause smoke pollution or bacterial / viral pollution to the air.

[0043] Furthermore, in this embodiment, the sterilization module 70 includes: a plasma emitter 71 and an ultraviolet sterilization lamp 72; The plasma emitter 71 is used to emit plasma to the gas that is about to enter the preset exhaust channel when it is started. The ultraviolet sterilization lamp 72 is used to emit ultraviolet light on the gas that is about to enter the preset smoke exhaust channel when it is started.

[0044] It is easy to understand that plasma can tear apart the bacterial shell and genetic code, and ultraviolet light can destroy the genetic code; both can kill bacteria and viruses. In this embodiment, as... Figure 5 As shown, when the controller 50 detects that the smoke exhaust module 30 needs to be activated to work (to extract smoke from the patient's body through the smoke exhaust module 30), it can activate the plasma emitter to emit plasma towards the gas and the smoke contained in the gas that is about to enter the preset smoke exhaust channel. At the same time, it can also activate the ultraviolet sterilization lamp 72 to emit ultraviolet light towards the gas and the smoke contained in the gas that is about to enter the preset smoke exhaust channel for dual sterilization.

[0045] It is worth noting that, please combine Figure 1 In this embodiment, with the chassis equipped with a sterilization module 70 and a filter module 60, gas and smoke can enter through the air inlet of the smoke exhaust device via a guide pipe. They are first sterilized by the plasma and ultraviolet light generated by the sterilization module 70, and then drawn into a preset smoke exhaust channel. In the preset smoke exhaust channel, the airflow and smoke sequentially pass through the smoke sensor 40, the image acquisition module 10, and the smoke exhaust module 30 (in practice, the order of passing through the smoke sensor 40 and the image acquisition module 10 is not important). Finally, the smoke exhaust module 30 draws the gas and smoke to the filter module 60. After the filter module 60 filters out the smoke, the remaining gas is discharged through the air outlet of the smoke exhaust device via a guide pipe. Thus, the smoke exhaust device completes a series of operations: sterilization, smoke extraction, and smoke filtration.

[0046] Furthermore, in this embodiment, the smoke extraction device includes: a display module 80; The controller 50 is also used to transmit the smoke particle concentration to the display module 80; The display module 80 is used to display the concentration of smoke particles to the user.

[0047] It should be noted that the display module 80 and the controller 50 can communicate with each other. The controller 50 can transmit the display signal corresponding to the smoke particle concentration collected by the smoke sensor 40 to the display module 80, so that the display module 80 can display the current smoke particle concentration value to the user, so that the user can determine whether the smoke exhaust module 30 needs to be manually adjusted.

[0048] It is worth noting that, in this embodiment, the controller 50 can also transmit the display signal corresponding to the current smoke exhaust flow rate to the display module 80, so that the display module 80 can display the value of the current smoke exhaust flow rate to the user, so that the user can judge whether the gas-stomach balance is maintained.

[0049] Furthermore, in this embodiment, the display module 80 is a touch screen; The touch screen is also used to send corresponding manual control information to the controller 50 in response to a manual control command triggered by the user. The controller 50 is further configured to, upon receiving the manual control information, adjust the smoke exhaust flow rate of the smoke exhaust module 30 based on the manual control information, so that the smoke exhaust flow rate is maintained at a set flow rate.

[0050] It should be noted that in this embodiment, the exhaust device also has a manual adjustment function and is equipped with an input module. The user can generate manual control commands through the input module, thereby sending corresponding manual control information to the controller 50. The manual control information refers to some working parameters that the user needs to manually set for the exhaust device, such as exhaust flow rate, power of the sterilization module 70 (ultraviolet light emission power, plasma pulse power), etc.

[0051] It is readily understood that, in this embodiment, the input module described above can be integrated with a display module, such as a touchscreen. The touchscreen can respond to manual control commands generated by the user touching the screen, thereby sending corresponding manual control information to the controller 50. Based on this manual control information, the controller 50 controls the smoke extraction module 30 to adjust the current smoke extraction flow rate to the user-set flow rate. This design facilitates surgery in special scenarios, such as those requiring excessive smoke extraction capacity.

[0052] This application provides a smoke extraction device, comprising: an image acquisition module, an image analysis module, a smoke extraction module, a smoke sensor, and a controller. The image acquisition module acquires images of a preset area within the patient's body. The image analysis module analyzes the acquired images based on a preset inference algorithm to generate corresponding image analysis results. When the controller determines that smoke exists in the preset area based on the image analysis results, it activates the smoke extraction module to expel the smoke from the patient's body through a preset smoke extraction channel. Simultaneously, the smoke sensor within the preset smoke extraction channel transmits the collected smoke particle concentration to the controller, allowing the controller to adaptively adjust the smoke extraction flow rate of the smoke extraction module based on the smoke particle concentration. This ensures that the smoke particle concentration within the preset area does not exceed a preset particle concentration, balancing smoke extraction efficiency and pneumoperitoneum stability, thereby ensuring smooth intraoperative procedures and reducing surgical difficulty.

[0053] Furthermore, to achieve the above objectives, embodiments of this application also provide an insufflation machine, such as... Figure 6 As shown, the pneumoperitoneum machine includes: an air supply device 300, a main unit 200, and a smoke exhaust device 100 as described above; The controller of the smoke exhaust device 100 communicates with the host 200 to transmit the smoke exhaust flow of the smoke exhaust module to the host 200. The host 200 is used to adjust the gas supply flow of the gas supply device 300 based on the exhaust flow rate, so that the exhaust flow rate and the gas supply flow rate maintain a preset ratio.

[0054] It should be noted that the main unit 200 is the control and data storage core of the insufflator. It can control the smoke exhaust device 100 and the air supply device 300, and can also acquire the operating parameters of the smoke exhaust device 100 and the air supply device 300 for monitoring. The air supply device 300 is used to supply air into the body, which balances with the exhaust process of the smoke exhaust device 100, thereby providing a suitable abdominal environment for surgery.

[0055] It is easy to understand that the air supply flow rate is the flow rate of air delivered to the human body by the air supply device 300. In this embodiment, the host 200 can communicate with the controller in the smoke exhaust device 100 to obtain the smoke exhaust flow rate of the smoke exhaust module in the smoke exhaust device 100, and control the air supply device 300 to output a corresponding air supply flow rate based on the smoke exhaust flow rate, so as to maintain a preset ratio between the smoke exhaust flow rate and the air supply flow rate, and ultimately achieve air pressure balance inside and outside the user's body.

[0056] It is worth noting that in this embodiment, the preset ratio needs to take into account the relationship between the exhaust flow rate and the actual gas extraction flow rate corresponding to the extraction of gas from the body. It is set based on the relationship between the exhaust flow rate and the extraction flow rate, the current actual exhaust flow rate, and the corresponding required gas supply flow rate.

[0057] The pneumoperitoneum machine provided in this application adopts the smoke exhaust device in the above embodiments. Compared with the prior art, the beneficial effects of the pneumoperitoneum machine provided in this application are the same as the beneficial effects of the smoke exhaust device provided in the above embodiments. Moreover, the other technical features of the pneumoperitoneum machine are the same as the features disclosed in the above embodiments, and will not be repeated here.

[0058] Furthermore, to achieve the above objectives, embodiments of this application also provide a smoke extraction method, such as... Figure 7 As shown, the smoke extraction method is applied to the smoke extraction device described above, and the steps of the smoke extraction method include: Step S10: Acquire an image of a preset area using the image acquisition module; It is easy to understand that, in this embodiment, the executing entity can be the smoke exhaust device as described above.

[0059] Step S20: The image features of the image are analyzed by the image analysis module based on a preset inference algorithm to obtain the corresponding image analysis results; It is easy to understand that in this embodiment, an image of the current preset area can be acquired by the smoke exhaust device and transmitted to the image analysis module. Based on the preset inference algorithm set in the image analysis module, the image features of the image are analyzed to generate an image analysis result that indicates whether smoke exists.

[0060] Step S30: When it is determined that there is smoke in the preset area based on the image analysis results, the smoke exhaust module is activated so that the smoke is discharged through the preset smoke exhaust channel; It is easy to understand that in this embodiment, if the image analysis result indicates that there is no smoke in the preset area, the smoke exhaust module will not be activated; otherwise, if the image analysis result indicates that there is smoke in the preset area, the smoke exhaust module can be activated to draw the smoke into the preset smoke exhaust channel and discharge it to the dedicated exhaust outlet through the preset smoke exhaust channel.

[0061] Step S40: Collect the smoke particle concentration of the smoke using a smoke sensor installed in the preset smoke exhaust channel; Step S50: Based on the smoke particle concentration and preset concentration-flow mapping table, adjust the smoke exhaust flow rate of the smoke exhaust module so that the smoke particle concentration is not higher than the preset particle concentration.

[0062] It is easy to understand that during the smoke exhaust process, the smoke sensor can obtain the smoke particle concentration in the preset smoke exhaust channel at preset time intervals. Then, by reading the target smoke exhaust flow rate corresponding to the current smoke particle concentration on the preset concentration flow rate mapping table, the smoke exhaust module can be controlled to adjust the current smoke exhaust flow rate to the target smoke exhaust flow rate, so that the smoke particle generation rate is lower than the smoke particle discharge rate, thereby causing the smoke particle concentration to gradually decrease to below the preset particle concentration.

[0063] Furthermore, in this embodiment, the smoke exhaust device further includes a filtration module and a sterilization module. After the step of activating the smoke exhaust module to allow the smoke to be discharged through the preset smoke exhaust channel when it is determined that smoke exists in the preset area based on the image analysis result, the device further includes: Step S60: The gas about to enter the preset smoke exhaust channel is sterilized by the sterilization module; It should be noted that, in this embodiment, after the smoke exhaust module is activated, the gas inside the patient's body and the smoke contained therein will first flow into the preset smoke exhaust channel through the sterilization module. At this time, the sterilization module can be activated simultaneously to sterilize the gas about to enter the preset smoke exhaust channel, thereby preventing bacteria or viruses from contaminating the medical environment.

[0064] Step S70: The gas discharged from the preset smoke exhaust channel is filtered by the filtration module to remove the smoke.

[0065] It should be noted that, in this embodiment, after the smoke extraction module is activated, the extracted gas and the smoke contained within it will eventually flow out of the smoke extraction device through the preset smoke extraction channel and the filter module. At this time, the filter module can filter the gas about to flow out of the preset smoke extraction channel, thereby preventing the smoke from polluting the medical environment.

[0066] The smoke extraction method provided in this application adopts the smoke extraction device in the above embodiments. Compared with the prior art, the beneficial effects of the smoke extraction method provided in this application are the same as the beneficial effects of the smoke extraction device provided in the above embodiments, and other technical features in the smoke extraction method are the same as the features disclosed in the above embodiments, which will not be repeated here.

[0067] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent scope of this application.

Claims

1. A smoke extraction device, characterized in that, The smoke extraction device includes: an image acquisition module, an image analysis module, a smoke extraction module, a smoke sensor, and a controller; The image acquisition module is used to acquire images of a preset area and transmit the images to the image analysis module; The image analysis module is used to analyze the image features of the image based on a preset inference algorithm and send the corresponding image analysis results to the controller. The controller is used to activate the smoke exhaust module when it is determined that there is smoke in the preset area based on the image analysis results, so that the smoke is discharged through the preset smoke exhaust channel; The smoke sensor is installed in the preset smoke exhaust channel to collect the smoke particle concentration and transmit the smoke particle concentration to the controller; The controller is also used to adjust the exhaust flow rate of the exhaust module based on the smoke particle concentration and the preset concentration-flow mapping table, so that the smoke particle concentration is not higher than the preset particle concentration.

2. The smoke extraction device as described in claim 1, characterized in that, The smoke extraction device also includes: a filter module; The inlet of the filter module is connected to the outlet of the preset smoke exhaust channel; The filtration module is used to filter the gas discharged from the preset smoke exhaust channel to remove the smoke.

3. The smoke extraction device as described in claim 2, characterized in that, The filtering module includes: a first filter layer to a sixth filter layer stacked sequentially, wherein the first filter layer is close to the inlet of the filtering module; The first filter layer, the third filter layer, and the fifth filter layer are filled with pre-filter cotton. The second filter layer is equipped with a HEPA filter; The fourth filter layer is filled with activated carbon; The sixth filter layer is filled with oil-absorbing cotton.

4. The smoke extraction device as described in claim 1, characterized in that, The smoke extraction device also includes: a sterilization module; The outlet of the sterilization module is connected to the inlet of the preset smoke exhaust channel; The controller is also used to activate the sterilization module when the smoke exhaust module is activated; The sterilization module is used to sterilize the gas that is about to enter the preset smoke exhaust channel.

5. The smoke extraction device as described in claim 4, characterized in that, The sterilization module includes: a plasma emitter and an ultraviolet sterilization lamp; The plasma emitter is used to emit plasma into the gas that is about to enter the preset exhaust channel when it is started. The ultraviolet sterilization lamp is used to emit ultraviolet light onto the gas that is about to enter the preset exhaust channel when it is started.

6. The smoke extraction device as described in any one of claims 1 to 5, characterized in that, The smoke extraction device includes: a display module; The controller is also used to transmit the smoke particle concentration to the display module; The display module is used to show the concentration of smoke particles to the user.

7. The smoke extraction device as described in claim 6, characterized in that, The display module is a touch screen; The touch screen is also used to send corresponding manual control information to the controller in response to a manual control command triggered by the user. The controller is further configured to, upon receiving the manual control information, adjust the smoke exhaust flow rate of the smoke exhaust module based on the manual control information, so that the smoke exhaust flow rate is maintained at a set flow rate.

8. A pneumoperitoneum machine, characterized in that, The pneumoperitoneum machine includes: an air supply device, a main unit, and a smoke exhaust device as described in any one of claims 1 to 7; The controller of the smoke exhaust device communicates with the host computer to transmit the smoke exhaust flow rate of the smoke exhaust module to the host computer. The host is used to adjust the gas supply flow of the gas supply device based on the exhaust flow rate, so that the exhaust flow rate and the gas supply flow rate maintain a preset ratio.

9. A smoke extraction method, characterized in that, The smoke extraction device applied to any one of claims 1 to 7, wherein the steps of the smoke extraction method include: The image acquisition module acquires images of a preset area; The image analysis module analyzes the image features based on a preset inference algorithm to obtain the corresponding image analysis results. When it is determined from the image analysis results that smoke exists in the preset area, the smoke exhaust module is activated so that the smoke is discharged through the preset smoke exhaust channel. The smoke particle concentration is collected by a smoke sensor installed in the preset smoke exhaust channel; Based on the mapping table between smoke particle concentration and preset concentration flow rate, the smoke exhaust flow rate of the smoke exhaust module is adjusted so that the smoke particle concentration is not higher than the preset particle concentration.

10. The smoke extraction method as described in claim 9, characterized in that, The smoke exhaust device further includes a filtration module and a sterilization module. After the step of activating the smoke exhaust module to allow the smoke to be discharged through the preset smoke exhaust channel when it is determined that smoke exists in the preset area based on the image analysis results, the device further includes: The sterilization module sterilizes the gas that is about to enter the preset smoke exhaust channel; The gas discharged from the preset smoke exhaust channel is filtered by the filtration module to remove the smoke.

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