Intelligent remote visual modular drainage system and method for abdominal surgery

Abstract

The invention provides an intelligent remote visual modular drainage system and method for an abdominal surgery, belongs to the field of medical instruments, and solves the problems that an existing drainage system is delayed in monitoring, lacks an early warning function and is poor in accuracy. Wherein the drainage tube is connected with the drainage container; the negative pressure assembly can provide a negative pressure environment for the drainage container, the flushing assembly is communicated with the drainage tube, and the multi-mode sensor group can detect the liquid level, conductivity, turbidity, transparency and optical reflection spectrum characteristics of drainage liquid in the drainage container; the visual probe and the annular LED lamp are arranged at the front end of the drainage tube; the wireless transmission device can transmit data of the multi-mode sensor group and the visual probe to the mobile phone terminal APP, the mobile phone terminal APP can judge the type of drainage liquid according to the conductivity, turbidity, transparency and optical reflection spectrum characteristics of the drainage liquid, and the drainage assembly and the flushing assembly can be controlled through the mobile phone terminal APP. Remote monitoring and control can be achieved, timely early warning is achieved, and accuracy is high.

Description

Technical Field

[0001] This invention belongs to the field of medical devices, and in particular relates to an intelligent remote visual modular drainage system and method for abdominal surgery. Background Technology

[0002] Postoperative drainage is a common and crucial procedure in abdominal surgery, used to drain ascites, blood, or pus to prevent infection or exudate buildup. Traditional drainage systems are mostly simple negative pressure or gravity drainage structures, which can only achieve mechanical drainage and cannot identify the nature of the drainage fluid. Medical staff must visually observe changes in the color and volume of the drainage bag to assess the patient's condition, which has the following drawbacks: (1) Unable to be remotely controlled, monitoring is delayed and lacks early warning function: Medical staff need to patrol regularly. If bleeding or infection worsens at night, it is difficult to detect in time and there is no early warning reminder.

[0003] (2) The judgment method is subjective and the accuracy is poor: Medical staff rely on the naked eye to distinguish colors, which is affected by light, fatigue, etc. The accuracy depends on the experience and concentration of medical staff.

[0004] (3) Information isolation: It is impossible to link the type of drainage fluid with surgical data and imaging information. Summary of the Invention

[0005] In view of this, in order to solve the problems of existing drainage systems being unable to be remotely controlled, having monitoring delays and lacking early warning functions, having subjective judgment methods and poor accuracy, this invention proposes an intelligent remote visual modular drainage system and method for abdominal surgery.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A smart, remote, visual, modular drainage system for laparoscopic surgery, comprising: The drainage tube has a flushing channel and a drainage channel inside. The front end and rear end of the drainage tube are respectively provided with a flushing outlet and a water inlet. Both the flushing outlet and the water inlet are connected to the flushing channel. Multiple side holes are provided at intervals along the length direction on the side wall of the drainage tube. The drainage tube is provided with a plug-in interface. The multiple side holes and the plug-in interface are all connected to the drainage channel. A flushing assembly, connected to a water inlet, is used to provide flushing fluid; Drainage container, which is connected to the plug-in interface; The negative pressure assembly is connected to the drainage container and is used to provide a negative pressure environment for the drainage container so that the drainage fluid can enter the drainage container through the side hole and drainage channel; The multimodal sensor group includes a liquid level sensor, a conductivity sensor, a turbidity sensor, and an optical detection unit. The liquid level sensor is used to detect the liquid level of the drainage liquid in the drainage container, the conductivity sensor is used to detect the conductivity of the drainage liquid in the drainage container, the turbidity sensor is used to detect the turbidity of the drainage liquid in the drainage container, and the optical detection unit is used to detect the transparency and optical reflectance spectral characteristics of the drainage liquid in the drainage container. A visual probe and a ring-shaped LED light are installed at the front end of the drainage tube; The system includes a wireless transmission device and a mobile app. The wireless transmission device is installed in the drainage tube, and the visual probe is connected to the wireless transmission device via a transmission fiber. The wireless transmission device transmits data from the multimodal sensor group and the visual probe to the mobile app. The mobile app can determine the type of drainage fluid based on its conductivity, turbidity, transparency, and optical reflectance spectral characteristics, determine whether the drainage tube is blocked based on the fluid level, and control the negative pressure component and flushing component through the mobile app.

[0007] As a preferred embodiment of the aforementioned intelligent remote visual modular drainage system for abdominal surgery, the negative pressure component includes a negative pressure pump and a backflow protection valve, with the negative pressure pump connected to the drainage container via the backflow protection valve.

[0008] As a preferred embodiment of the above-mentioned intelligent remote visualization modular drainage system for abdominal surgery, the irrigation component includes an irrigation solution pack, an irrigation pump, and a control valve. One end of the irrigation pump is connected to the irrigation solution pack, and the other end is connected to the water inlet through the control valve.

[0009] As a preferred embodiment of the aforementioned intelligent remote visual modular drainage system for abdominal surgery, the intelligent remote visual modular drainage system for abdominal surgery further includes an anti-fog structure to prevent fogging of the visual probe.

[0010] This invention also provides a method for operating an intelligent remote visual modular drainage system for abdominal surgery, employing the aforementioned intelligent remote visual modular drainage system for abdominal surgery, comprising: Based on the liquid level height continuously measured by the liquid level sensor in the drainage container, it can be determined whether the drainage tube is blocked and whether there is a risk of active bleeding or leakage. If the drainage tube becomes blocked, the mobile app will issue a "Drainage tube blocked" alarm. If there is a risk of active bleeding or leakage, the mobile app will display a message indicating "risk of active bleeding or leakage". Based on the conductivity, turbidity, transparency, and optical reflectance spectral characteristics of the drainage fluid, the type of drainage fluid is comprehensively determined, enabling automatic classification and identification of clear serous fluid, bloody fluid, purulent fluid, and mixed fluid. The type of drainage fluid and intelligent suggestions are displayed on the mobile terminal APP.

[0011] As a preferred embodiment of the working method of the aforementioned intelligent remote visual modular drainage system for abdominal surgery, the determination of whether the drainage tube is blocked and whether there is a risk of active bleeding or leakage is based on the continuously measured liquid level height in the drainage container by the liquid level sensor, including: The real-time volume of the drainage liquid in the drainage container is obtained based on the real-time liquid level height and the cross-sectional area of ​​the drainage container. Determine whether the real-time volume of the drained fluid within the set time is less than the set volume; If so, the drainage tube is blocked; The cumulative rate of drainage fluid in the drainage container is obtained based on the real-time volume of the drainage fluid in the drainage container. Determine whether the accumulation rate of the drainage liquid in the drainage container is greater than the set liquid accumulation rate; If so, there is a risk of active bleeding or leakage.

[0012] As a preferred embodiment of the working method of the aforementioned intelligent remote visual modular drainage system for abdominal surgery, the type of drainage fluid is determined comprehensively based on its conductivity, turbidity, and transparency, including: When the conductivity range is 1-3 mS / cm, the turbidity is less than 50 nTu, the transmittance is greater than or equal to 70%, and the optical reflectance spectrum is smooth with no obvious absorption peaks, the drainage liquid is a clear slurry liquid. When the conductivity ranges from 8 to 15 mS / cm, the turbidity ranges from 100 to 400 nTu, the transmittance ranges from 20% to 50%, and the optical reflectance spectrum shows a significant red light absorption peak, the drained fluid is bloody. When the conductivity ranges from 3 to 6 mS / cm, the turbidity is greater than 600 nTu, the transmittance is less than 30%, and the optical reflection spectrum is characterized by enhanced spectral scattering and decreased transmittance, the drainage fluid is purulent. When the conductivity ranges from 5 to 10 mS / cm, the turbidity ranges from 200 to 600 nTu, the transmittance ranges from 30% to 60%, and the optical reflectance spectrum is characterized by multi-band mixed absorption, then the drainage liquid is a mixed liquid.

[0013] As a preferred embodiment of the working method of the above-mentioned intelligent remote visual modular drainage system for abdominal surgery, if a blockage of the drainage tube is detected, the mobile terminal APP controls the flushing component to start automatic flushing. If the drainage fluid is bloody, the mobile app controls the negative pressure component to reduce the suction to below -8 kPa to prevent secondary bleeding. If the drainage fluid is purulent or a mixed fluid, the mobile app will control the flushing component to start and inject saline solution into the drainage tube.

[0014] As a preferred embodiment of the working method of the aforementioned intelligent remote visual modular drainage system for abdominal surgery, if the drainage fluid is bloody, the mobile terminal APP will automatically prompt "suspected postoperative bleeding" and display intelligent suggestions such as "monitor the flow rate of drainage fluid; check whether hemoglobin has decreased; consider performing bedside ultrasound or CT scan". If the drainage fluid is purulent, the mobile app will automatically prompt "Infection risk increased" and display intelligent suggestions such as "Send drainage fluid for culture; recheck white blood cells and CRP; assess whether secondary drainage or antibiotic adjustment is needed".

[0015] As a preferred embodiment of the working method of the aforementioned intelligent remote visual modular drainage system for abdominal surgery, according to the formula... Calculate the comprehensive discrimination index; If S < 0.5, the drainage fluid will be a clear, serous fluid. If 0.5 ≤ S < 1.0, then the drainage fluid is a mixture; If S≥1.0, the drainage fluid is bloody or purulent. Where S is the comprehensive discrimination index; EC0 is the conductivity, ms / cm; The reference standard deviation for conductivity is ms / cm; NTU0 is turbidity, ntu; This is the turbidity reference threshold.

[0016] Compared with existing technologies, the beneficial effects of the intelligent remote visualization modular drainage system and method for laparoscopic surgery provided by this invention are: (1) This intelligent remote visualization modular drainage system for abdominal surgery has an irrigation mode and a negative pressure drainage mode. During irrigation, the irrigation component supplies irrigation fluid into the irrigation channel through the water inlet and finally discharges it from the irrigation outlet. During negative pressure drainage, the negative pressure component provides a negative pressure environment to the drainage container so that the drainage fluid enters from the side hole and enters the drainage container through the drainage channel. Both the irrigation channel and the drainage channel are set on the drainage tube, and the negative pressure drainage mode or irrigation mode can be switched on the same drainage tube to improve the versatility of the system.

[0017] (2) This intelligent remote visualization modular drainage system for abdominal surgery monitors the level of drainage fluid in the drainage container in real time, obtaining the volume of drainage fluid entering the container. Based on the volume of drainage fluid in the container, it can determine whether the drainage tube is blocked; based on the real-time volume of drainage fluid in the container, it can obtain the accumulation rate of drainage fluid in the container; based on the accumulation rate of drainage fluid, it can determine whether there is active bleeding or leakage risk. Furthermore, by monitoring the conductivity, turbidity, transparency, and optical reflectance spectral characteristics of the drainage fluid in real time, and comprehensively analyzing these characteristics, it can determine the type of drainage fluid, thereby assisting in the assessment of bleeding or infection progression, helping to identify bleeding or infection trends early, and reducing the risk of complications and secondary surgery. This system uses a multi-sensor fusion algorithm, which has higher accuracy and stability than a single sensor.

[0018] (3) This intelligent remote visual modular drainage system for abdominal surgery allows doctors to observe the intra-abdominal environment in real time through a visual probe at the front end of the drainage tube, providing real-time visualization of the abdominal cavity and reducing the risk of blind operation. The wireless transmission device wirelessly transmits the monitoring data of the multimodal sensor group and the video data of the visual probe to the mobile terminal APP, facilitating remote monitoring, recording of the surgery, and timely warnings for doctors. Moreover, the mobile terminal APP can control the drainage and irrigation components, automatically switching between negative pressure drainage mode and irrigation mode based on the detection results, improving the system's intelligence. The mobile terminal APP displays the drainage fluid type, surgical data, and imaging information, facilitating comprehensive analysis of various information by doctors. Attached Figure Description

[0019] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the structure of an intelligent remote visual modular drainage system for abdominal surgery provided in a specific embodiment of the present invention; Figure 2 This is a schematic diagram of the drainage tube structure of the intelligent remote visual modular drainage system for abdominal surgery provided in a specific embodiment of the present invention; Figure 3 This is a cross-sectional view of the drainage tube of the intelligent remote visual modular drainage system for abdominal surgery provided in a specific embodiment of the present invention.

[0020] In the picture: 1. Drainage pipe; 11. Flushing channel; 12. Flushing outlet; 13. Water inlet; 14. Drainage channel; 15. Side hole; 16. Plug-in interface; 2. Wireless transmission device; 3. Flushing assembly; 31. Flushing solution pack; 32. Flushing pump; 33. Control valve; 4. Drainage container; 5. Negative pressure component; 6. Multimodal sensor array; 7. Mobile App; 8. Visual probe; 9. Transmission fiber optic cable. Detailed Implementation The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other, and the described embodiments are only some embodiments of the present invention, not all embodiments.

[0021] See Figure 1-3This invention provides an intelligent remote visual modular drainage system for abdominal surgery. The system includes a drainage tube 1, an irrigation assembly 3, a drainage container 4, a negative pressure assembly 5, a multimodal sensor group 6, a visual probe 8, a ring LED light, a wireless transmission device 2, and a mobile terminal APP. 7. The drainage tube 1 is provided with a flushing channel 11 and a drainage channel 14. The front end and rear end of the drainage tube 1 are respectively provided with a flushing outlet 12 and a water inlet 13. Both the flushing outlet 12 and the water inlet 13 are connected to the flushing channel 11. Multiple side holes 15 are provided at intervals along the length direction on the side wall of the drainage tube 1. The drainage tube 1 is provided with a plug-in interface 16. The multiple side holes 15 and the plug-in interface 16 are all connected to the drainage channel 14. The flushing assembly 3 is connected to the water inlet 13 to provide flushing fluid. The drainage container 4 is connected to the plug-in interface 16. The negative pressure assembly 5 is connected to the drainage container 4 to provide a negative pressure environment for the drainage container 4 so that the drainage fluid passes through the side holes 15 and the drainage channel 14. 4. The fluid enters the drainage container 4; the multimodal sensor group 6 includes a liquid level sensor, a conductivity sensor, a turbidity sensor, and an optical detection unit. The liquid level sensor is used to detect the liquid level of the drainage fluid in the drainage container 4, the conductivity sensor is used to detect the conductivity of the drainage fluid in the drainage container 4, the turbidity sensor is used to detect the turbidity of the drainage fluid in the drainage container 4, and the optical detection unit is used to detect the transparency and optical reflection spectrum characteristics of the drainage fluid in the drainage container 4; a visual probe 8 and a ring LED light are set at the front end of the drainage tube 1; a wireless transmission device 2 is set at the drainage tube 1 to transmit the data of the multimodal sensor group 6 and the visual probe 8 to the mobile terminal APP 7. The mobile terminal APP 7 can determine the type of drainage fluid based on the conductivity, turbidity, transparency, and optical reflection spectrum characteristics of the drainage fluid, determine whether the drainage tube 1 is blocked based on the liquid level of the drainage fluid, and control the negative pressure component 5 and the flushing component 3 through the mobile terminal APP 7.

[0022] This intelligent remote visual modular drainage system for abdominal surgery features both a flushing mode and a negative pressure drainage mode. During flushing, the flushing component 3 supplies flushing fluid into the flushing channel 11 through the water inlet 13, and finally discharges it from the flushing outlet 12. During negative pressure drainage, the negative pressure component 5 provides a negative pressure environment to the drainage container 4, allowing drainage fluid to enter through the side hole 15 and then through the drainage channel 14 into the drainage container 4. Both the flushing channel 11 and the drainage channel 14 are located on the drainage tube 1, enabling switching between negative pressure drainage and flushing modes on the same drainage tube 1, thus improving system versatility.

[0023] This intelligent remote visual modular drainage system for abdominal surgery monitors the fluid level in drainage container 4 in real time, determining the volume of fluid entering container 4. Based on the volume, it can determine if drainage tube 1 is blocked. The real-time volume of fluid in container 4 also allows for the calculation of the fluid accumulation rate, which in turn helps identify the risk of active bleeding or leakage. Furthermore, by monitoring the conductivity, turbidity, transparency, and optical reflectance spectral characteristics of the drainage fluid in real time, and comprehensively analyzing these characteristics, the system can determine the type of drainage fluid. This helps in assessing the progression of bleeding or infection, facilitating early identification of bleeding or infection trends, and reducing the risk of complications and secondary surgeries. The system employs a multi-sensor fusion algorithm, offering higher accuracy and stability compared to single-sensor systems.

[0024] This intelligent remote visual modular drainage system for abdominal surgery allows doctors to observe the intra-abdominal environment in real time through a visual probe 8 at the front end of the drainage tube 1, providing real-time visualization of the abdominal cavity and reducing the risk of blind operation. The wireless transmission device 2 wirelessly transmits monitoring data from the multimodal sensor group 6 and video data from the visual probe 8 to a mobile terminal APP 7, facilitating remote monitoring, recording of the surgery, and timely alerts for doctors. Furthermore, the mobile terminal APP 7 can control the drainage and irrigation components 3, automatically switching between negative pressure drainage and irrigation modes based on detection results, enhancing the system's intelligence. The mobile terminal APP 7 displays the drainage fluid type, surgical data, and imaging information, enabling doctors to comprehensively analyze various information.

[0025] In this embodiment, the wireless transmission device 2 uses Wi-Fi or a combination of BLE / Wi-Fi for wireless communication to balance video bandwidth and control command stability.

[0026] In this embodiment, the drainage tube 1 is made of medical-grade silicone or medical-grade polyurethane material, and its hardness, wall thickness, elasticity, etc., can be optimized for different surgical sites. It is understood that the irrigation channel 11 is located outside the drainage channel 14, and the side holes 15 on the drainage tube 1 and the irrigation channel 11 are staggered.

[0027] In this embodiment, the visual probe 8 is equipped with a disposable built-in battery structure, and can also be designed with a sterilizable, reusable, externally powered structure. The visual probe 8 is connected to the wireless transmission device 2 via a transmission optical fiber 9.

[0028] In this embodiment, the drainage container 4 is a drainage bag or a drainage bottle.

[0029] In this embodiment, the negative pressure component 5 includes a negative pressure pump and a backflow protection valve. The negative pressure pump is connected to the drainage container 4 through the backflow protection valve.

[0030] In this embodiment, the side hole 15 is elliptical or slit-shaped.

[0031] In this embodiment, the flushing assembly 3 includes a flushing liquid pack 31, a flushing pump 32, and a control valve 33. One end of the flushing pump 32 is connected to the flushing liquid pack 31, and the other end is connected to the water inlet 13 through the control valve 33.

[0032] In this embodiment, the intelligent remote visual modular drainage system for abdominal surgery also includes an anti-fog structure to prevent the visual probe 8 from fogging.

[0033] The visual probe 8 has a transparent window, and the anti-fog structure can prevent the transparent window of the visual probe 8 from fogging. The anti-fog structure can be an anti-fog film attached to the transparent window, or it can be a miniature heating wire set behind the transparent window.

[0034] This invention also provides a method for operating an intelligent remote visual modular drainage system for abdominal surgery, comprising: Based on the liquid level height continuously measured by the liquid level sensor in the drainage container 4, it is determined whether the drainage tube 1 is blocked and whether there is a risk of active bleeding or leakage.

[0035] Specifically, based on the real-time liquid level of the drainage fluid and the cross-sectional area of ​​the drainage container 4, the real-time volume of the drainage fluid in the drainage container 4 is obtained; it is then determined whether the real-time volume of the drainage fluid within a set time is less than the set volume; if so, the drainage tube 1 is blocked. If the drainage tube 1 is blocked, the mobile terminal APP 7 issues a "drainage tube blockage" alarm; if blockage of the drainage tube 1 is detected, the mobile terminal APP 7 controls the flushing component 3 to start automatic flushing. It is understood that this automatic flushing function can be set and switched on / off by the doctor via the mobile terminal APP 7.

[0036] In this embodiment, a capacitive or ultrasonic liquid level sensor is installed inside the drainage container 4, which can detect the liquid level height from 0 to 150 mm, corresponding to a volume of 0 to 500 ml, with an error of ±1 ml. If the total volume of the drainage fluid in 24 hours is less than 10 ml, the mobile terminal APP 7 will display a message indicating "drainage tube blockage".

[0037] Based on the real-time volume of the drainage fluid in the drainage container 4, the accumulation rate of the drainage fluid in the drainage container 4 is obtained; it is determined whether the accumulation rate of the drainage fluid in the drainage container 4 is greater than the set accumulation rate of the fluid; if so, there is a risk of active bleeding or leakage. If there is a risk of active bleeding or leakage, the mobile terminal APP 7 will display "Active bleeding or leakage risk".

[0038] In this embodiment, if the cumulative rate of drainage fluid is greater than 30 ml / h, the mobile terminal APP 7 will display a message indicating "risk of active bleeding or leakage".

[0039] Based on the conductivity, turbidity, transparency, and optical reflectance spectral characteristics of the drainage fluid, the type of drainage fluid is comprehensively determined, enabling automatic classification and identification of clear serous fluid, bloody fluid, purulent fluid, and mixed fluid. The type of drainage fluid and intelligent suggestions are displayed on the mobile APP.

[0040] Specifically, an initial conductivity screening is performed first, followed by real-time measurement of the conductivity of the draining liquid using a conductivity / resistance sensor (dual-electrode structure) placed on the inner wall of the fluid conduit. When the conductivity is greater than 6 ms / cm and the rate of rise is greater than 1... At that time, the system initially judged that there was an increase in plasma components in the drainage fluid; if it was greater than 3 ms / cm, then bloody fluid was excluded and classified as clear serous fluid.

[0041] Then, through the formula The conductivity and turbidity are weighted and combined to calculate the comprehensive discrimination index; if S < 0.5, the drainage fluid is clear serous fluid; if 0.5 ≤ S < 1.0, the drainage fluid is mixed fluid; if S ≥ 1.0, the drainage fluid is bloody or purulent fluid.

[0042] Where S is the comprehensive discrimination index; EC0 is the conductivity, ms / cm; The reference standard deviation for conductivity is ms / cm; NTU0 is turbidity, ntu; This is the turbidity reference threshold.

[0043] The light scattering of the liquid was measured using an integrated photoelectric turbidity sensor and an LED light source (wavelength 600 ± 20 nm). A turbidity greater than 200 ntu indicated a significant presence of red blood cells or pus cells, suggesting the fluid might be bloody or purulent.

[0044] Based on the above evaluation methods, the following judgment method is ultimately obtained: The type of drainage fluid is comprehensively judged based on the specific parameter ranges of its conductivity, turbidity, and transparency, as well as its optical reflectance spectral characteristics. Specifically: When the conductivity ranges from 1 to 3 mS / cm, the turbidity is less than 50 nTU, the transmittance is greater than or equal to 70%, and the optical reflectance spectrum is smooth with no obvious absorption peaks, the drainage liquid is a clear slurry liquid.

[0045] When the conductivity ranges from 8 to 15 mS / cm, the turbidity ranges from 100 to 400 nTu, the transmittance ranges from 20% to 50%, and the optical reflectance spectrum shows a distinct red light absorption peak, the drained fluid is bloody.

[0046] When the conductivity ranges from 3 to 6 mS / cm, the turbidity is greater than 600 nTu, the transmittance is less than 30%, and the optical reflection spectrum is characterized by enhanced spectral scattering and decreased transmittance, the drainage fluid is purulent.

[0047] When the conductivity ranges from 5 to 10 mS / cm, the turbidity ranges from 200 to 600 nTu, the transmittance ranges from 30% to 60%, and the optical reflectance spectrum is characterized by multi-band mixed absorption, then the drainage liquid is a mixed liquid.

[0048] Table 1: Relationship between various detection parameters and drainage fluid

[0049] In the table, the reference standard for a significant absorption peak is: when the absorption peak exceeds the set value, the absorption peak is considered significant.

[0050] Compared to existing technologies that rely on a single or two parameters such as the color, turbidity, or viscosity of the drainage fluid to determine the patient's condition, this intelligent remote visual modular drainage system for abdominal surgery can comprehensively determine the type of drainage fluid based on the specific parameter ranges of conductivity, turbidity, and transparency, as well as the optical reflectance spectral characteristics, resulting in a more accurate assessment.

[0051] Depending on the type of drainage fluid, the negative pressure component and flushing component 3 can be remotely controlled via a mobile terminal APP.

[0052] If the drainage fluid is bloody, the mobile app controls the negative pressure component to reduce the suction to below -8 kPa to prevent secondary bleeding.

[0053] If the drainage fluid is purulent or a mixed fluid, the mobile terminal APP controls the flushing component 3 to start and inject physiological saline into the drainage tube 1.

[0054] The specific smart suggestions displayed on the mobile app for bloody and purulent fluids are as follows: If the drainage fluid is bloody, the mobile app will automatically prompt "suspected postoperative bleeding" and display intelligent suggestions such as "monitor the flow rate of drainage fluid; check if hemoglobin levels have decreased; consider performing bedside ultrasound or CT scan".

[0055] If the drainage fluid is purulent, the mobile app will automatically prompt "Infection risk increased" and display intelligent suggestions such as "Send drainage fluid for culture; recheck white blood cells and CRP; assess whether secondary drainage or antibiotic adjustment is needed".

[0056] Obviously, the above-disclosed embodiments of the present invention are merely illustrative of the invention. The embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. It is neither necessary nor possible to exhaustively describe all embodiments herein.

Claims

1. An intelligent remote visual modular drainage system for abdominal surgery, characterized in that, include: The drainage pipe (1) is provided with a flushing channel (11) and a drainage channel (14). The front end and rear end of the drainage pipe (1) are respectively provided with a flushing outlet (12) and a water inlet (13). The flushing outlet (12) and the water inlet (13) are both connected to the flushing channel (11). Multiple side holes (15) are provided at intervals along the length direction on the side wall of the drainage pipe (1). The drainage pipe (1) is provided with a plug-in interface (16). The multiple side holes (15) and the plug-in interface (16) are all connected to the drainage channel (14). A flushing assembly (3) is connected to a water inlet (13) for providing flushing fluid; Drainage container (4), which is connected to plug-in interface (16); Negative pressure component (5) is connected to drainage container (4) to provide a negative pressure environment for drainage container (4) so ​​that drainage liquid enters drainage container (4) through side hole (15) and drainage channel (14); The multimodal sensor group (6) includes a liquid level sensor, a conductivity sensor, a turbidity sensor and an optical detection unit. The liquid level sensor is used to detect the liquid level of the drainage liquid in the drainage container (4), the conductivity sensor is used to detect the conductivity of the drainage liquid in the drainage container (4), the turbidity sensor is used to detect the turbidity of the drainage liquid in the drainage container (4), and the optical detection unit is used to detect the transparency and optical reflection spectrum characteristics of the drainage liquid in the drainage container (4). The visual probe (8) and the ring LED light are both located at the front end of the drainage tube (1); The wireless transmission device (2) and the mobile terminal APP (7) are installed in the drainage tube (1). The visual probe (8) is connected to the wireless transmission device (2) through the transmission optical fiber (9). The wireless transmission device (2) is used to transmit the data of the multimodal sensor group (6) and the visual probe (8) to the mobile terminal APP (7). The mobile terminal APP (7) can determine the type of drainage liquid based on the conductivity, turbidity, transparency and optical reflection spectrum characteristics of the drainage liquid, determine whether the drainage tube (1) is blocked based on the liquid level of the drainage liquid, and control the negative pressure component (5) and the flushing component (3) through the mobile terminal APP (7).

2. The intelligent remote visual modular drainage system for abdominal surgery according to claim 1, characterized in that: The negative pressure assembly (5) includes a negative pressure pump and a backflow protection valve. The negative pressure pump is connected to the drainage container (4) through the backflow protection valve.

3. The intelligent remote visual modular drainage system for abdominal surgery according to claim 1, characterized in that: The flushing assembly (3) includes a flushing solution pack (31), a flushing pump (32) and a control valve (33). One end of the flushing pump (32) is connected to the flushing solution pack (31), and the other end is connected to the water inlet (13) through the control valve (33).

4. The intelligent remote visual modular drainage system for abdominal surgery according to claim 1, characterized in that: It also includes an anti-fog structure to prevent the visual probe (8) from fogging.

5. A method for operating an intelligent remote visual modular drainage system for abdominal surgery, characterized in that: The intelligent remote visualization modular drainage system for abdominal surgery according to any one of claims 1-4 includes: Based on the liquid level height in the drainage container (4) continuously measured by the liquid level sensor, determine whether the drainage tube (1) is blocked and whether there is a risk of active bleeding or leakage. If the drainage tube (1) is blocked, the mobile terminal APP (7) will issue a "drainage tube blocked" alarm; If there is a risk of active bleeding or leakage, the mobile terminal APP (7) will display "risk of active bleeding or leakage"; Based on the conductivity, turbidity, transparency and optical reflectance spectral characteristics of the drainage fluid, the type of drainage fluid is comprehensively judged, and the automatic classification and identification of clear serous fluid, bloody fluid, purulent fluid and mixed fluid is realized. The type of drainage fluid and intelligent suggestions are displayed on the mobile terminal APP (7).

6. The working method of the intelligent remote visual modular drainage system for abdominal surgery according to claim 5, characterized in that: Based on the liquid level height continuously measured by the liquid level sensor in the drainage container (4), the following criteria are used to determine whether the drainage tube (1) is blocked and whether there is a risk of active bleeding or leakage: The real-time volume of the drainage liquid in the drainage container (4) is obtained based on the real-time liquid level height of the drainage liquid and the cross-sectional area of ​​the drainage container (4). Determine whether the real-time volume of the drained fluid within the set time is less than the set volume; If so, then the drainage tube (1) is blocked; The cumulative rate of the drainage liquid in the drainage container (4) is obtained based on the real-time volume of the drainage liquid in the drainage container (4). Determine whether the accumulation rate of the drainage liquid in the drainage container (4) is greater than the set liquid accumulation rate; If so, there is a risk of active bleeding or leakage.

7. The working method of the intelligent remote visual modular drainage system for abdominal surgery according to claim 5, characterized in that: The type of drainage fluid can be determined by comprehensively considering its conductivity, turbidity, and transparency. When the conductivity range is 1-3 mS / cm, the turbidity is less than 50 nTu, the transmittance is greater than or equal to 70%, and the optical reflectance spectrum is smooth with no obvious absorption peak, the drainage liquid is a clear slurry liquid. When the conductivity ranges from 8 to 15 mS / cm, the turbidity ranges from 100 to 400 nTu, the transmittance ranges from 20% to 50%, and the optical reflectance spectrum shows a significant red light absorption peak, the drained fluid is bloody. When the conductivity ranges from 3 to 6 mS / cm, the turbidity is greater than 600 nTu, the transmittance is less than 30%, and the optical reflection spectrum is characterized by enhanced spectral scattering and decreased transmittance, the drainage fluid is purulent. When the conductivity ranges from 5 to 10 mS / cm, the turbidity ranges from 200 to 600 nTu, the transmittance ranges from 30% to 60%, and the optical reflectance spectrum is characterized by multi-band mixed absorption, then the drainage liquid is a mixed liquid.

8. The working method of the intelligent remote visual modular drainage system for abdominal surgery according to claim 5, characterized in that: If the drainage tube (1) is detected to be blocked, the mobile terminal APP (7) controls the flushing component (3) to start and perform automatic flushing; If the drainage fluid is bloody, the mobile terminal APP (7) controls the negative pressure component (5) to reduce the suction force to within -8 kPa to prevent secondary bleeding; If the drainage fluid is purulent or mixed, the mobile terminal APP (7) controls the flushing component (3) to start and inject physiological saline into the drainage tube (1).

9. The working method of the intelligent remote visual modular drainage system for abdominal surgery according to claim 5, characterized in that: If the drainage fluid is bloody, the mobile terminal APP (7) will automatically prompt "suspected postoperative bleeding" and display intelligent suggestions such as "monitor the flow rate of drainage fluid; check whether hemoglobin has decreased; consider bedside ultrasound or CT re-examination"; If the drainage fluid is purulent, the mobile terminal APP (7) will automatically prompt "Infection risk increased" and display intelligent suggestions: "Send drainage fluid for culture; re-examine white blood cells and CRP; assess whether secondary drainage or antibiotic adjustment is needed." 10. The working method of the intelligent remote visual modular drainage system for abdominal surgery according to claim 5, characterized in that: According to the formula Calculate the comprehensive discrimination index; If S < 0.5, the drainage fluid will be a clear, serous fluid. If 0.5 ≤ S < 1.0, then the drainage fluid is a mixture; If S≥1.0, the drainage fluid is bloody or purulent. Where S is the comprehensive discriminant index; EC0 is the electrical conductivity, in m / cm; The reference standard deviation for conductivity is ms / cm; NTU0 is turbidity, ntu; This is the turbidity reference threshold.

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