Abdominal wall negative pressure suction device with wound monitoring function

Abstract

The invention discloses an abdominal wall negative pressure suction device with a wound surface monitoring function in the technical field of abdominal wall debridement.The abdominal wall negative pressure suction device comprises a controller and an adsorption pipe, the bottom end of the adsorption pipe is fixedly connected with a pasting assembly, the top end of the adsorption pipe communicates with a first pump assembly, and the surface of the adsorption pipe is fixedly connected with a circular supporting base; a plurality of shells are connected to the outer side of the circular supporting seat, first telescopic assemblies used for allowing the shells to move are arranged at the joints, second telescopic assemblies used for allowing the shells to move are arranged at the joints between the shells and the adjacent shells, and a driving assembly used for enabling the shells to move is in threaded connection with the surface of the adsorption pipe; an expansion assembly is arranged in the adsorption pipe and communicates with a second pump assembly, and the inner wall of the shell is fixedly connected with a signal assembly. The negative pressure abdominal wall debridement device is simple and easy to operate, negative pressure abdominal wall debridement is achieved through assistance among the driving assembly, the signal assembly, the controller, the adsorption pipe and other components, size adjustment before device attachment is completed based on the size of a wound surface, and adsorption is better facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of abdominal wall debridement, and in particular to an abdominal wall negative pressure suction device with a wound surface monitoring function. Background Art

[0002] Abdominal wall debridement is a common procedure in surgical operations, which aims to remove pollutants, necrotic tissue and foreign bodies in the wound to create favorable conditions for wound healing. The principles of post-debridement treatment include thorough hemostasis, removal of foreign bodies, prevention of infection and promotion of healing.

[0003] Some existing abdominal wall negative pressure suction devices, after attaching the device to the patient's abdominal wound, assist in negative pressure adsorption debridement through components such as controllers, adsorption tubes and negative pressure machines. At the same time, by collecting image information of the wound, the negative pressure adsorption force is timely controlled to ensure safety. At the same time, in order to reduce the entry of external bacteria, dust and other pollutants into the wound, the wound surface needs to be covered to reduce the risk of infection; however, the size of these devices is relatively fixed, and it is difficult to adjust them according to the size of the patient's wound area so that the device reaches a suitable coverage area. Therefore, it is necessary to propose an abdominal wall negative pressure suction device with wound surface monitoring function, which can not only complete abdominal wall debridement through negative pressure, but also monitor the wound surface, and automatically adjust the size of the device based on the size of the wound surface before attachment, so as to better complete adsorption. Summary of the invention

[0004] In order to solve the above problems, the present invention provides an abdominal wall negative pressure suction device with a wound monitoring function. The present invention is simple and easy to operate. Through the assistance between components such as a driving component, a signal component, a controller and an adsorption tube, negative pressure abdominal wall debridement is achieved, and based on the size of the wound, the size of the device is adjusted before attachment to facilitate adsorption.

[0005] In order to achieve the above-mentioned purpose, the technical scheme of the present invention is as follows: an abdominal wall negative pressure suction device with a wound surface monitoring function, comprising a controller and an adsorption tube, the adsorption tube is connected to a negative pressure machine, the controller is electrically connected to the negative pressure machine, the bottom end of the adsorption tube is fixedly connected to a patch assembly, the top end of the adsorption tube is connected to a first pump assembly, the outer wall of the adsorption tube is surrounded and fixedly connected to a circular support seat, the outer wall of the circular support seat is hinged with a plurality of shells along its circumference and the connection is provided with a first telescopic assembly for limiting the movement of the shell along the connection between the shell and the circular support seat and sealing the connection between the shell and the circular support seat, and adjacent shells are provided with a second telescopic assembly for deforming with the movement of the shell and sealing the gap between adjacent shells;

[0006] The surface of the adsorption tube is threadedly connected with a driving component for rotating the shell along the connection between the shell and the circular support seat. The interior of the adsorption tube is provided with an expansion component for adjusting the volume of the cavity inside the shell after the shell covers the wound surface. The expansion component is connected to the second pump component. The inner wall of the shell is provided with a signal component for collecting wound images, wound temperature and pressure. The first pump component, the second pump component, the driving component and the signal component are all electrically connected to the controller.

[0007] Principle of the basic solution: The image of the abdominal wound is collected through the signal component, which is analyzed and processed by the controller, and the movement of the driving component is controlled based on the identified wound area. At the same time, the shell can move accordingly due to the existence of the first telescopic component and the second telescopic component to change the coverage formed by their combination; and the signal component is used to collect the specific conditions of the patient's abdominal wound in real time during negative pressure adsorption and after cleaning; and, during the adsorption process, the negative pressure in the adsorption tube will drive the expansion component to move, and then the second pump component will be used to inflate it, causing it to expand and reduce the excess space inside the device after it covers the wound.

[0008] The above scheme has the following beneficial effects:

[0009] 1. In this solution, the shell is connected to the circular support base and the adjacent shell through the first telescopic component and the second telescopic component. This design allows the shell to be flexibly adjusted according to the abdominal wall shape or wound size, thereby improving the adaptability of the device to individual differences of different patients. At the same time, the setting of the drive component makes the movement of the shell more controllable, which is convenient for doctors to adjust the monitoring and suction range according to actual needs.

[0010] 2. This solution realizes the negative pressure suction function through the adsorption tube and the first pump assembly, which helps to clear wound exudate, reduce the risk of infection, and promote wound healing; and the connection between the expansion assembly and the second pump assembly may be used to apply moderate pressure around the wound when necessary, further control exudation, and improve the effect of negative pressure suction.

[0011] 3. In this solution, the design of the signal component can collect real-time images, temperature and pressure information of the wound. This information is crucial for doctors to evaluate the healing status of the wound, promptly detect signs of infection or inflammation, and adjust treatment strategies, thereby achieving accurate monitoring of the wound condition and optimization of personalized care.

[0012] Furthermore, the first telescopic components all include a telescopic ring, and the telescopic ring is made of silicone.

[0013] Beneficial effects: The silicone material has excellent elastic properties, so that the shell can be flexibly adjusted according to the size of the abdominal wall wound area, which helps to ensure a close fit between the device and the abdominal wall, thereby improving the effect of negative pressure suction and the accuracy of wound monitoring.

[0014] Furthermore, the second telescopic components all include a telescopic layer, and the telescopic layer is made of silicone.

[0015] Beneficial effects: Silicone material has excellent expansion and contraction properties, so the shells are connected by expansion layers, so that the shells can be flexibly adjusted according to the size of the abdominal wall wound area, which helps to ensure a close fit between the device and the abdominal wall, thereby improving the effect of negative pressure suction and the accuracy of wound monitoring.

[0016] Furthermore, the signal component includes a pressure sensor, a temperature sensor, a camera and several endoscopes. The pressure sensor and the temperature sensor are fixedly connected to the inner wall of the shell, the camera is embedded in the bottom of the adsorption tube, and the endoscopes are respectively arranged on the side surfaces of the application component. The pressure sensor, temperature sensor, camera and endoscope are all electrically connected to the controller.

[0017] Beneficial effects: The design of the pressure sensor can detect the pressure of the closed space where the wound is located during negative pressure adsorption, so as to monitor the suction force of the negative pressure adsorption in real time and ensure the normal and efficient debridement; the design of the temperature sensor can monitor the internal temperature of the wound in real time after it is covered to ensure that its temperature is a safe temperature and reduce the possibility of infection; the camera can capture the specific conditions of the wound in real time and provide accurate data before and after debridement.

[0018] Furthermore, the expansion assembly includes a movable groove opened on the inner wall of the adsorption tube, a movable block is slidably connected in the movable groove, a ventilation pipe is fixedly connected to the bottom of the movable block, the ventilation pipe passes through the adsorption tube wall along the axis of the adsorption tube and is connected to a plurality of air bags corresponding to the shell, the air bags are respectively fixedly connected to the inner top wall of the shell, the ventilation pipe is vertically slidably matched with the inner wall of the adsorption tube, a ventilation hole is opened on one side of the lower part of the ventilation pipe, and a vent corresponding to the vent is provided on the surface of the adsorption tube, the vent and the vent can be connected, and the vent is connected to the second pump assembly.

[0019] Beneficial effect: The design of the moving block can automatically move a certain distance according to the negative pressure suction, so that the overlapping area of ​​the vent hole and the vent port changes automatically, thereby changing the flow rate of the gas input into the airbag by the second pump component to expand the airbag.

[0020] Furthermore, the driving assembly includes a moving seat slidably connected to the adsorption tube, the interior of the moving seat is divided into a driving chamber and a moving chamber, a servo motor is fixedly connected to the driving chamber, a worm wheel and a worm are arranged in the moving chamber, the worm wheel is meshed with the worm, the inner ring of the worm wheel is threadedly connected to the adsorption tube to form a ball screw structure, one end of the worm is rotatably connected to the inner wall of the moving chamber, and the other end of the worm is coaxially fixedly connected to the output shaft of the servo motor, a plurality of connecting rods corresponding to the shell are hinged on the outer side of the moving seat, the ends of the connecting rods away from the moving seat are hinged to the surface of the shell, and the servo motor is electrically connected to the controller.

[0021] Beneficial effects: The inner ring of the worm gear and the adsorption tube are threadedly connected to form a ball screw structure, which can achieve high-precision linear motion of the moving seat, with high transmission efficiency and fast response speed, thereby accurately controlling the range that the shell can cover to better suit the size of the abdominal wall wound; at the same time, the meshing transmission of the worm gear and the worm has a self-locking characteristic, which can prevent accidental movement of the shell due to changes in external loads to a certain extent, thereby improving the stability and safety during negative pressure debridement of the abdominal wall.

[0022] Furthermore, the camera and the endoscope are both used to capture abdominal wound images; the controller is used to determine and obtain abdominal wound area information based on the abdominal wound image information, and then control the movement of the drive component based on the abdominal wound area, and is also used to control the output power of the negative pressure machine based on the abdominal wound image information.

[0023] Beneficial effects: The camera and endoscope can capture images of abdominal wounds in real time and provide intuitive wound information to doctors or control systems, which helps doctors quickly understand the wound condition and make accurate diagnoses. Based on the abdominal wound image information, the controller can automatically determine and obtain abdominal wound area information. Accurate wound area calculation helps doctors assess the severity of the wound and develop appropriate treatment plans. The controller can also intelligently adjust the output power of the negative pressure machine based on the abdominal wound image information. Appropriate negative pressure intensity helps promote wound healing, reduce the risk of infection, and avoid excessive pressure on surrounding tissues.

[0024] Furthermore, the patch assembly includes a foam layer detachably connected to the bottom of the adsorption tube; the endoscopes are respectively arranged on the side surfaces of the foam layer.

[0025] Beneficial effects: The foam layer has excellent exudate absorption capacity, and can cooperate with negative pressure adsorption to quickly absorb the exudate from the wound, keep the wound dry, and reduce the environment for bacterial growth, thereby reducing the risk of infection. In addition, the foam layer has a soft texture, which can reduce the shear force and friction at the wound, avoid secondary damage to the wound, and help the wound heal. The foam layer can create a microenvironment that is conducive to wound healing, including suitable humidity, temperature, and reduced bacterial contamination.

[0026] Furthermore, the first pump assembly includes a negative pressure machine and a first connecting pipe, one end of the first connecting pipe is connected to the adsorption pipe, and the other end of the first connecting pipe is connected to the negative pressure machine, and the negative pressure machine is electrically connected to the controller.

[0027] Beneficial effect: The negative pressure machine is directly connected to the adsorption tube through the first connecting tube, and can quickly generate the required negative pressure environment at the adsorption tube. This rapid response helps to promptly remove exudate, pus or other contaminants from the wound, keep the wound clean and promote healing.

[0028] Furthermore, the second pump assembly includes an air pump and a second connecting pipe, one end of the second connecting pipe is connected to the air pump, the other end of the second connecting pipe is connected to the vent, and the air pump is electrically connected to the controller.

[0029] Beneficial effect: The air pump is directly connected to the vent through the second connecting tube, and can quickly generate the required gas pressure or flow at the vent. This rapid response helps to provide the required gas environment for the wound or treatment area in time to maintain a suitable environment in the treatment area.

[0030] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a front cross-sectional schematic diagram of an embodiment of an abdominal wall negative pressure suction device with a wound surface monitoring function of the present invention;

[0032] Figure 2 It is a schematic diagram of the housing of an embodiment of the abdominal wall negative pressure suction device with wound surface monitoring function of the present invention;

[0033] Figure 3 It is a schematic diagram of an expansion component of an embodiment of an abdominal wall negative pressure suction device with a wound surface monitoring function of the present invention;

[0034] Figure 4 It is a top sectional view of the driving assembly of an embodiment of the abdominal wall negative pressure suction device with wound surface monitoring function of the present invention.

[0035] The figure marks in the drawings of the specification include: 1. adsorption tube; 2. shell; 3. airbag; 4. temperature sensor; 5. foam layer; 6. camera; 7. pressure sensor; 8. telescopic ring; 9. circular support seat; 10. connecting rod; 11. moving seat; 12. telescopic layer; 13. moving groove; 14. moving block; 15. ventilation pipe; 16. vent; 17. ventilation hole; 18. endoscope. DETAILED DESCRIPTION

[0036] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The following is further described in detail through specific implementation methods:

[0040] Embodiment 1:

[0041] As attached Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown: an abdominal wall negative pressure suction device with wound surface monitoring function, including a controller and an adsorption tube 1, the adsorption tube 1 is connected to a negative pressure machine, the controller is electrically connected to the negative pressure machine, the bottom end of the adsorption tube 1 is fixedly connected to a patch assembly, the top end of the adsorption tube 1 is connected to a first pump assembly, the outer wall of the adsorption tube 1 is surrounded by a circular support seat 9, the outer wall of the circular support seat 9 is hinged with a plurality of shells 2 along its circumference, and the connections are all bonded with a first telescopic assembly for limiting the movement of the shell 2 along the connection between it and the circular support seat 9 and sealing the connection between the shell 2 and the circular support seat 9, the connection between adjacent shells 2 is bonded with a second telescopic assembly for deforming with the movement of the shell 2 and sealing the gap between adjacent shells 2; the surface of the adsorption tube 1 is threadedly connected with a driving assembly for moving the shell 2, an expansion assembly is provided inside the adsorption tube 1, the expansion assembly is connected to a second pump assembly, the inner wall of the shell 2 is provided with a signal assembly for collecting wound images, wound temperature and pressure, and the first pump assembly, the second pump assembly, the driving assembly and the signal assembly are all electrically connected to the controller. At the same time, in order to improve the stability of the shell 2 attached to the abdominal wall, a corresponding adhesive layer is bonded to the bottom thereof.

[0042] The signal component includes a pressure sensor 7, a temperature sensor 4, a camera 6 and several endoscopes 18. The pressure sensor 7 and the temperature sensor 4 are screwed to the inner wall of the shell 2. The camera 6 is embedded in the bottom of the adsorption tube 1. The endoscopes 18 are respectively arranged on the side surfaces of the application component. The pressure sensor 7, the temperature sensor 4, the camera 6 and the endoscope 18 are all electrically connected to the controller, so as to complete some necessary data collection during abdominal wall debridement and provide a reliable basis for subsequent doctors to formulate treatment plans.

[0043] The camera 6 and the endoscope 18 are both used to collect abdominal wound images; the controller is used to determine and obtain abdominal wound area information based on the abdominal wound image information, and then control the movement of the drive component based on the abdominal wound area, and is also used to control the output power of the negative pressure machine based on the abdominal wound image information.

[0044] The driving assembly includes a moving seat 11 which is slidably connected to the adsorption tube 1. The interior of the moving seat 11 is divided into a driving cavity and a moving cavity. A servo motor is fixedly connected to the driving cavity with screws. A worm wheel and a worm are arranged in the moving cavity. The worm wheel is meshed with the worm. The inner ring of the worm wheel is threadedly connected to the adsorption tube 1 to form a ball screw structure. One end of the worm is rotatably connected to the inner wall of the moving cavity, and the other end of the worm is coaxially fixedly connected to the output shaft of the servo motor. A plurality of connecting rods 10 corresponding to the shell 2 are hinged on the outer side of the moving seat 11. The ends of the connecting rods 10 away from the moving seat 11 are hinged to the surface of the shell 2, and the servo motor is electrically connected to the controller.

[0045] The first pump assembly includes a negative pressure machine and a first connecting pipe, one end of the first connecting pipe is connected to the adsorption tube 1, the other end of the first connecting pipe is connected to the negative pressure machine, and the negative pressure machine is electrically connected to the controller; the second pump assembly includes an air pump and a second connecting pipe, one end of the second connecting pipe is connected to the air pump, the other end of the second connecting pipe is connected to the vent 16, and the air pump is electrically connected to the controller. The negative pressure machine and the air pump provide the necessary negative pressure adsorption force for debridement treatment and provide the corresponding expansion gas for the expansion assembly, thereby further promoting the efficiency of abdominal wall wound cleaning and improving completeness.

[0046] The patch assembly includes a foam layer 5 bonded to the bottom of the adsorption tube 1. The foam layer 5 can create a microenvironment conducive to wound healing by keeping the wound clean and moist. The foam layer helps promote the growth of new epithelium and granulation tissue, thereby accelerating the wound healing process.

[0047] The first telescopic assembly includes a telescopic ring 8, which is made of silicone; the second telescopic assembly includes a telescopic layer 12, which is made of silicone. Since silicone has good ductility and good biological properties, it is used to connect the shells 2 and the circular support seat 9, which can ensure that the shell 2 has good adjustability, thereby completing accurate size adjustment based on the wound surface monitoring results.

[0048] The specific implementation process is as follows: first, the image information of the abdominal wall wound is collected by the camera 6 and transmitted to the controller, which analyzes the area of ​​the wound. Then, the controller controls the movement of the servo motor based on the size of the abdominal wall wound, thereby driving the worm coaxially connected to the output shaft of the servo motor. Because the worm wheel is meshed with the worm, the worm wheel is driven to rotate, and the inner ring of the worm wheel is threadedly connected to the outer wall of the adsorption tube 1 and is a ball screw structure. At the same time, since the adsorption tube 1 is artificially limited, after the servo motor rotates, the rotation of the worm wheel can be converted into the movement of the worm wheel along the axis direction of the adsorption tube 1, so that the moving seat 11 can also move along the absorption tube 1. The attached tube 1 moves in the axial direction. Since the connecting rod 10 is hinged on the moving seat 11 and the connecting rod 10 is hinged with the corresponding shell 2, when the moving seat 11 moves, the connecting rod 10 will generate a certain pulling force or pushing force on the shell 2. At the same time, since the shells 2 are connected by the telescopic layer 12 and the shell 2 is connected to the circular support seat 9 by the telescopic ring 8, the telescopic layer 12 and the telescopic ring 8 are both made of silicone, so that the shell 2 can move accordingly due to the pulling force or pushing force of the connecting rod 10, thereby completing the adjustment of the surface covered by the shell 2, so that it can be adjusted to a suitable covering surface according to different wound sizes to improve the efficiency of subsequent negative pressure adsorption. Further, the adjusted shell 2 is attached to the patient's wound, and lightly pressed to make it better attached, reducing the gap between the shell 2 and the abdominal wall, thereby improving the airtightness of the adsorption cavity formed after the shell 2 is attached, so as to further improve the adsorption and reduce the possibility of the wound exudate flowing to other places.

[0049] When performing negative pressure adsorption of the abdominal wall wound, the temperature sensor 4 will monitor the pressure and temperature in the adsorption cavity in real time and transmit it to the controller, which will visualize it so that the doctor can understand the basic situation of the wound in time, so as to adjust the treatment plan in real time, improve the safety of the entire debridement process, and reduce the possibility of wound infection in patients. At the same time, the camera 6 will also monitor the image information of the wound in real time, and the controller will analyze the image information to determine the basic situation of the wound, so as to adjust the output power of the negative pressure machine according to the actual situation, ensuring efficient cleaning and high safety.

[0050] During the negative pressure adsorption process, due to the negative pressure in the adsorption tube 1, the expansion component moves, so that the air in the air pump passes into the expansion component to expand it. As a result, when the adsorption chamber formed after the shell 2 is adjusted is larger, the space in the adsorption chamber is reduced, so as to quickly complete the initial pressure adjustment during negative pressure adsorption, so as to improve the adsorption efficiency and reduce the possibility of unstable adsorption due to the large chamber.

[0051] Embodiment 2:

[0052] As attached Figure 3As shown, the difference from Example 1 is that the expansion component includes a movable groove 13 opened on the inner wall of the adsorption tube 1, and a movable block 14 is slidably fitted in the movable groove 13. A vent pipe 15 is integrally formed at the bottom of the movable block 14. The vent pipe 15 passes through the wall of the adsorption tube 1 along the axial direction of the adsorption tube 1 and is connected to an air bag 3 opposite to the shell 2. The vent pipe 15 slides with the adsorption tube 1, and a vent hole 17 is opened at one end of the vent pipe 15 close to the movable block 14. A vent port 16 corresponding to the vent hole 17 is opened on the surface of the adsorption tube 1, and the vent port 16 is connected to the second connecting pipe; and when the movable block 14 moves to the top of the movable groove 13, the vent hole 17 and the vent port 16 are fully connected.

[0053] The specific implementation process is as follows: during negative pressure adsorption, due to the negative pressure in the adsorption tube 1, a certain suction force will be generated on the moving block 14, and since the moving block 14 and the ventilation tube 15 fixedly connected thereto can slide along their respective limiting paths, when the suction force is greater than the gravity of the moving block 14 and the ventilation tube 15, the moving block 14 will slide upward along the moving groove 13 and drive the ventilation tube 15 at its bottom to move, so that the ventilation holes 17 on the surface of the ventilation tube 15 gradually align with the corresponding ventilation ports 16; at this time, the gas generated by the air pump will enter the airbag 3 through the ventilation tube 15 to expand it; and as the moving block 14 rises, the ventilation tube 15 driven by it will also become longer, so that the gravity increases, thereby maintaining a balance with the adsorption force, and then the movement of the moving block 14 can be automatically adjusted according to the size of the adsorption force. When the controller determines that the wound image requires a larger adsorption force and increases the adsorption force, the airbag 3 will also be inflated faster, thereby accelerating the reduction of the space of the adsorption chamber, thereby quickly adjusting the pressure in the adsorption chamber and accelerating the adsorption efficiency.

[0054] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An abdominal wall negative pressure suction device with wound surface monitoring function, comprising a controller and an adsorption tube (1), the adsorption tube (1) is connected to a negative pressure machine, the controller is electrically connected to the negative pressure machine, and is characterized in that: The bottom end of the adsorption tube (1) is fixedly connected to an application assembly, the top end of the adsorption tube (1) is connected to a first pump assembly, the outer wall of the adsorption tube (1) is surrounded and fixedly connected to a circular support seat (9), the outer wall of the circular support seat (9) is hinged with a plurality of shells (2) along its circumference, and the connection points are all provided with a first telescopic assembly for limiting the movement of the shell (2) along the connection point between the shell (2) and the circular support seat (9) and sealing the connection point between the shell (2) and the circular support seat (9), and adjacent shells (2) are each provided with a second telescopic assembly for deforming with the movement of the shell (2) and sealing the gap between adjacent shells (2); The surface of the adsorption tube (1) is threadedly connected with a driving component for rotating the shell (2) along the connection between the shell (2) and the circular support seat (9); an expansion component for adjusting the volume of the cavity inside the shell (2) after the shell (2) covers the wound surface is provided inside the adsorption tube (1); the expansion component is connected to the second pump component; the inner wall of the shell (2) is provided with a signal component for collecting wound images, wound temperature and pressure; the first pump component, the second pump component, the driving component and the signal component are all electrically connected to the controller.

2. The abdominal wall negative pressure suction device with wound surface monitoring function according to claim 1, characterized in that: The first telescopic components all include a telescopic ring (8), and the telescopic ring (8) is made of silicone.

3. The abdominal wall negative pressure suction device with wound surface monitoring function according to claim 2, characterized in that: The second telescopic components all include a telescopic layer (12), and the telescopic layer (12) is made of silicone.

4. The abdominal wall negative pressure suction device with wound surface monitoring function according to claim 3, characterized in that: The signal component comprises a pressure sensor (7), a temperature sensor (4), a camera (6) and a plurality of endoscopes (18); the pressure sensor (7) and the temperature sensor (4) are both fixedly connected to the inner wall of the shell (2); the camera (6) is embedded in the bottom of the adsorption tube (1); the endoscope (18) is respectively arranged on the side surface of the application component; the pressure sensor (7), the temperature sensor (4), the camera (6) and the endoscope (18) are all electrically connected to the controller.

5. The abdominal wall negative pressure suction device with wound surface monitoring function according to claim 4, characterized in that: The expansion component comprises a movable groove (13) opened on the inner wall of the adsorption tube (1), a movable block (14) is slidably connected in the movable groove (13), a ventilation pipe (15) is fixedly connected to the bottom of the movable block (14), the ventilation pipe (15) passes through the wall of the adsorption tube (1) along the axial direction of the adsorption tube (1) and is connected to a plurality of air bags (3) corresponding to the shell (2), the air bags (3) are respectively fixedly connected to the inner top wall of the shell (2), the ventilation pipe (15) and the inner wall of the adsorption tube (1) are vertically slidably matched, a ventilation hole (17) is opened on one side of the lower part of the ventilation pipe (15), and a ventilation port (16) corresponding to the ventilation hole (17) is provided on the surface of the adsorption tube (1), the ventilation port (16) and the ventilation hole (17) can be connected, and the ventilation port (16) is connected to the second pump component.

6. The abdominal wall negative pressure suction device with wound surface monitoring function according to claim 5, characterized in that: The driving assembly comprises a moving seat (11) which is slidably connected to the adsorption tube (1); the interior of the moving seat (11) is divided into a driving chamber and a moving chamber; a servo motor is fixedly connected to the driving chamber; a worm wheel and a worm are arranged in the moving chamber; the worm wheel is meshed with the worm; an inner ring of the worm wheel is threadedly connected to the adsorption tube (1) to form a ball screw structure; one end of the worm is rotatably connected to the inner wall of the moving chamber; the other end of the worm is coaxially fixedly connected to the output shaft of the servo motor; a plurality of connecting rods (10) corresponding to the housing (2) are hinged on the outer side of the moving seat (11); the ends of the connecting rods (10) away from the moving seat (11) are hinged to the surface of the housing (2); and the servo motor is electrically connected to a controller.

7. The abdominal wall negative pressure suction device with wound surface monitoring function according to claim 6, characterized in that: The camera (6) and the endoscope (18) are used to collect images of the abdominal wound; The controller is used to determine and obtain the abdominal wound area information based on the abdominal wound image information, and then control the movement of the driving component based on the abdominal wound area. It is also used to control the output power of the negative pressure machine based on the abdominal wound image information.

8. The abdominal wall negative pressure suction device with wound surface monitoring function according to claim 7, characterized in that: The patch assembly comprises a foam layer (5) detachably connected to the bottom of the adsorption tube (1); and endoscopes (18) are respectively arranged on the side surfaces of the foam layer.

9. The abdominal wall negative pressure suction device with wound surface monitoring function according to claim 8, characterized in that: The first pump assembly comprises a negative pressure machine and a first connecting pipe, one end of the first connecting pipe is connected to the adsorption pipe (1), the other end of the first connecting pipe is connected to the negative pressure machine, and the negative pressure machine is electrically connected to the controller.

10. The abdominal wall negative pressure suction device with wound surface monitoring function according to claim 9, characterized in that: The second pump assembly comprises an air pump and a second connecting pipe, one end of the second connecting pipe is connected to the air pump, the other end of the second connecting pipe is connected to the vent (16), and the air pump is electrically connected to the controller.

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