An abdominal wall negative pressure suction device with a wound surface monitoring function

Abstract

The application discloses the technical fields of abdominal wall debridement and has a wound monitoring function's abdominal wall negative pressure suction device, including controller and adsorption pipe, adsorption pipe bottom end fixedly connected with the application assembly, adsorption pipe top end is connected with first pump assembly, adsorption pipe surface fixedly connected with circular support seat, the outside of circular support seat is connected with a plurality of housings and is equipped with first telescopic component for allowing the movement of housing, the connecting place between housing and its adjacent housing is equipped with second telescopic component for allowing the movement of housing, the surface of adsorption pipe is screw thread connection is used for the drive component for the movement of housing, the inside of adsorption pipe is equipped with expansion component, expansion component is connected with second pump assembly, the inner wall of housing is fixedly connected with signal component.The application simple and easy operation, through the assistance between drive component, signal component, controller and adsorption pipe and other components, realize negative pressure abdominal wall debridement, and based on the size of wound, complete the size adjustment before device attachment, to be more conducive to adsorption.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of abdominal wall debridement, in particular to an abdominal wall negative pressure suction device with wound surface monitoring function. BACKGROUND

[0002] Abdominal wall debridement is a common step in surgical operation, aiming to remove contaminants, necrotic tissue and foreign matter in the wound, and to create favorable conditions for wound healing. The principles of post-debridement treatment include complete hemostasis, removal of foreign matter, 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, use a controller, a suction pipe and a negative pressure machine to assist in negative pressure suction debridement, and at the same time collect image information of the wound to control the negative pressure suction force in time to ensure safety. 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 fixed, and it is difficult to adjust the size according to the size of the patient's wound area, so that the device can reach the appropriate coverage area. Therefore, it is necessary to propose an abdominal wall negative pressure suction device with wound surface monitoring function, which not only completes abdominal wall debridement through negative pressure, but also monitors the wound surface and automatically adjusts the size of the device before attachment based on the size of the wound surface, so as to better complete the suction. SUMMARY

[0004] To solve the above problems, the present application provides an abdominal wall negative pressure suction device with wound surface monitoring function, which is simple and easy to operate. Through the cooperation between the driving assembly, signal assembly, controller and suction pipe and other components, negative pressure abdominal wall debridement is realized, and the size adjustment of the device before attachment is completed based on the size of the wound surface, so as to be more conducive to suction.

[0005] In order to achieve the above purpose, the technical scheme of the present application is as follows: an abdominal wall negative pressure suction device with wound surface monitoring function, comprising a controller and a suction pipe, the suction pipe being communicated with a negative pressure machine, the controller being electrically connected with the negative pressure machine, the bottom end of the suction pipe being fixedly connected with a dressing assembly, the top end of the suction pipe being communicated with a first pump assembly, the outer wall of the suction pipe being fixedly connected with a circular support seat, a plurality of housings being hingedly connected to the outer wall of the circular support seat along the circumference thereof, and the connection portions being provided with first telescopic assemblies for limiting the movement of the housings along the connection portions with the circular support seat and sealing the connection portions of the housings with the circular support seat, and the second telescopic assemblies being provided between adjacent housings for deforming with the movement of the housings and sealing the gap between the adjacent housings.

[0006] The surface of the adsorption tube is threadedly connected with a driving assembly for rotating the shell along the connection with the circular support seat, the inside of the adsorption tube is provided with an inflation assembly for adjusting the volume of the cavity inside the shell after the shell covers the wound surface, the inflation assembly is communicated with a second pump assembly, the inner wall of the shell is provided with a signal assembly for collecting wound images, wound temperatures and pressures, and the first pump assembly, the second pump assembly, the driving assembly and the signal assembly are electrically connected with the controller.

[0007] The basic scheme principle is that the abdominal wound image is collected by the signal assembly, analyzed and processed by the controller, and based on the identified wound area size, the driving assembly is controlled to move, at the same time, the shell can move correspondingly due to the existence of the first and second telescopic assemblies, and the coverage range formed by the combination thereof is changed; and the specific conditions of the patient's abdominal wound surface during negative pressure adsorption and after cleaning are collected in real time by the signal assembly; and during the adsorption process, the negative pressure in the adsorption tube will drive the inflation assembly to move, and then the second pump assembly is used to inflate it to make it expand to reduce the excess space inside the device after covering the wound.

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

[0009] 1、In this scheme, the shell is connected with the circular support seat and the adjacent shell through the first and second telescopic assemblies, which allows the shell to be flexibly adjusted according to the abdominal wall shape or wound size, improves the adaptability of the device to individual differences of different patients, and at the same time, the setting of the driving assembly 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、In this scheme, the negative pressure suction function is realized through the adsorption tube and the first pump assembly, which helps to remove wound exudates, reduces the risk of infection, and promotes wound healing; and the communication of the inflation assembly and the second pump assembly can be used to moderately compress the surrounding of the wound when necessary, further control the exudation, and improve the effect of negative pressure suction.

[0011] 3、In this scheme, the design of the signal assembly can collect images, temperatures and pressure information of the wound in real time, which is crucial for doctors to evaluate the healing status of the wound, timely detect signs of infection or inflammation, and adjust treatment strategies, thereby realizing accurate monitoring of the wound condition and optimization of personalized care.

[0012] Further, the first telescopic assembly includes a telescopic ring made of silicone.

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

[0014] Further, the second telescopic assembly each comprises a telescopic layer made of silica gel.

[0015] Beneficial effects: The silica gel material has excellent telescopic performance, so the shells are connected through the telescopic layer, thereby enabling the shells to be flexibly adjusted according to the size of the abdominal wall wound area, which helps to ensure the close fit between the device and the abdominal wall, thereby improving the effect of negative pressure suction and the accuracy of wound monitoring.

[0016] Further, the signal assembly comprises a pressure sensor, a temperature sensor, a camera and a plurality of 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 pipe, and the endoscopes are arranged on the side surface of the application assembly, and the pressure sensor, the temperature sensor, the camera and the endoscopes are electrically connected with 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, thereby monitoring the suction force of the negative pressure adsorption in real time and ensuring the normal and efficient debridement; the design of the temperature sensor can monitor the internal temperature of the wound after covering, thereby ensuring that the temperature is a safe temperature and reducing the possibility of infection; the camera can real-time capture the specific situation of the wound, thereby providing accurate data before and after debridement.

[0018] Further, the expansion assembly comprises a moving groove opened in the inner wall of the adsorption pipe, a moving block is slidably connected in the moving groove, the bottom of the moving block is fixedly connected with a ventilation pipe, the ventilation pipe penetrates the wall of the adsorption pipe along the axial direction of the adsorption pipe and is communicated with a plurality of air bags corresponding to the shell, the air bags are fixedly connected to the inner top wall of the shell, the ventilation pipe is vertically slidably connected with the inner wall of the adsorption pipe, one side of the lower part of the ventilation pipe is provided with a ventilation hole, the surface of the adsorption pipe is provided with a ventilation port corresponding to the ventilation hole, the ventilation hole and the ventilation port can be communicated, and the ventilation port is communicated with the second pump assembly.

[0019] Beneficial effects: The design of the moving block can automatically move a certain distance according to the negative pressure suction force, thereby changing the overlapping area of the ventilation hole and the ventilation port, and further changing the flow rate of the gas input into the air bag by the second pump assembly, so as to expand the air bag.

[0020] Further, the driving assembly comprises a moving seat slidably connected with the adsorption pipe, the moving seat is internally divided into a driving cavity and a moving cavity, a servo motor is fixedly connected in the driving cavity, a worm gear and a worm are arranged in the moving cavity, the worm gear is engaged with the worm, the inner ring of the worm gear is threadedly connected with the adsorption pipe to form a ball screw structure, one end of the worm is rotatably connected with the inner wall of the moving cavity, and the other end of the worm is fixedly connected with the output shaft of the servo motor in a coaxial manner, a plurality of connecting rods corresponding to the shell are hingedly connected to the outer side of the moving seat, one end of each connecting rod away from the moving seat is hingedly connected with the surface of the shell, and the servo motor is electrically connected with the controller.

[0021] Beneficial effects: the inner ring of the worm gear and the adsorption tube are connected by threads to form a ball screw structure. This structure can realize the high-precision linear motion of the moving seat, has high transmission efficiency and fast response speed, thereby accurately controlling the range covered by the shell to better adapt to the size of the abdominal wound. At the same time, the meshing transmission of the worm gear and the worm has self-locking characteristics, which can prevent accidental movement of the shell caused by external load changes to a certain extent, thereby improving the stability and safety of the abdominal wound vacuum debridement.

[0022] Further, the camera and the endoscope 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 to control the movement of the driving assembly 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 the endoscope can collect real-time images of the abdominal wound, providing intuitive wound information for the doctor or control system, which helps the doctor quickly understand the wound condition and make accurate diagnosis. The controller can automatically determine and obtain the abdominal wound area information based on the abdominal wound image information. Accurate wound area calculation helps the doctor to 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 to promote wound healing and reduce the risk of infection, while avoiding excessive pressure on surrounding tissues.

[0024] Further, the dressing assembly includes a foam layer detachably connected to the bottom of the adsorption tube; the endoscope is arranged on the side surface of the foam layer.

[0025] Beneficial effects: the foam layer has excellent liquid absorption capacity and can quickly absorb exudate at the wound site in cooperation with negative pressure adsorption, keeping the wound dry and reducing the environment for bacterial growth, thereby reducing the risk of infection. The foam layer is soft in texture, which can reduce the shear force and friction at the wound site, avoiding secondary damage to the wound and helping the wound to heal. The foam layer can create a microenvironment conducive to wound healing, including appropriate humidity, temperature and reduced bacterial contamination.

[0026] Further, the first pump assembly includes a negative pressure machine and a first connecting pipe, one end of the first connecting pipe being in communication with the adsorption tube, the other end of the first connecting pipe being in communication with the negative pressure machine, and the negative pressure machine being electrically connected with the controller.

[0027] Beneficial effects: the negative pressure machine is directly connected with the adsorption tube through the first connecting pipe, which can quickly generate the required negative pressure environment at the adsorption tube. This fast response helps to timely remove exudate, pus or other contaminants at the wound site, keeping the wound clean and promoting 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, and the other end of the second connecting pipe is connected to the air inlet. The air pump is electrically connected to the controller.

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

[0030] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

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

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

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

[0034] Figure 4 This is a top sectional view of the drive component of an embodiment of the abdominal wall negative pressure suction device with wound monitoring function of the present invention.

[0035] The reference numerals in the accompanying drawings of the instruction manual include: 1. Adsorption tube; 2. Housing; 3. Airbag; 4. Temperature sensor; 5. Foam layer; 6. Camera; 7. Pressure sensor; 8. Telescopic ring; 9. Circular support base; 10. Connecting rod; 11. Moving base; 12. Telescopic layer; 13. Moving groove; 14. Moving block; 15. Vent tube; 16. Vent port; 17. Vent hole; 18. Endoscope. Detailed Implementation

[0036] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0039] The following detailed description illustrates the specific implementation method:

[0040] Example 1:

[0041] As attached Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown: An abdominal wall negative pressure suction device with wound monitoring function includes a controller and an adsorption tube 1. The adsorption tube 1 is connected to a negative pressure machine, and the controller is electrically connected to the negative pressure machine. An application component is fixedly connected to the bottom end of the adsorption tube 1, and a first pump component is connected to the top end of the adsorption tube 1. A circular support base 9 surrounds the outer wall of the adsorption tube 1. Several housings 2 are hinged to the outer wall of the circular support base 9 around its circumference, and a first telescopic component is glued to each connection point to limit the movement of the housing 2 along its connection point with the circular support base 9 and to seal the connection point between the housing 2 and the circular support base 9. A second telescopic component is glued to the connection point between adjacent housings 2 to deform with the movement of the housing 2 and to seal the gap between adjacent housings 2. A drive component for moving the housings 2 is threadedly connected to the surface of the adsorption tube 1. An expansion component is provided inside the adsorption tube 1, and the expansion component is connected to the second pump component. A signal component for acquiring wound images, wound temperature, and pressure is provided on the inner wall of the housings 2. The first pump component, the second pump component, the drive component, and the signal component are all electrically connected to the controller. Meanwhile, in order to improve the stability of the shell 2 attached to the abdominal wall, a corresponding adhesive layer is bonded to its bottom.

[0042] The signal components include 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 housing 2. The camera 6 is embedded in the bottom of the adsorption tube 1. The endoscopes 18 are respectively set on the side surface of the patch assembly. The pressure sensor 7, the temperature sensor 4, the camera 6, and the endoscopes 18 are all electrically connected to the controller, thereby completing some necessary data collection during abdominal wall debridement and providing a reliable basis for doctors to formulate subsequent treatment plans.

[0043] Both camera 6 and endoscope 18 are used to acquire images of the abdominal wound; the controller is used to determine and obtain information about the area of ​​the abdominal wound based on the information of the abdominal wound images, and then control the movement of the drive components based on the area of ​​the abdominal wound. It is also used to control the output power of the negative pressure machine based on the information of the abdominal wound images.

[0044] The drive assembly includes a movable seat 11 that is slidably connected to the adsorption tube 1. The movable seat 11 is divided into a drive cavity and a moving cavity. A servo motor is fixedly connected to the drive cavity with screws. A worm wheel and a worm are arranged in the moving cavity. The worm wheel and the worm mesh. 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. The other end of the worm is coaxially fixedly connected to the output shaft of the servo motor. Several connecting rods 10 corresponding to the housing 2 are hinged to the outside of the movable seat 11. The ends of the connecting rods 10 away from the movable seat 11 are all hinged to the surface of the housing 2. The servo motor is electrically connected to the controller.

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

[0046] The dressing assembly includes a foam layer 5 adhered to the bottom of the adsorption tube 1. The foam layer 5 creates a microenvironment conducive to wound healing. By keeping the wound clean and moist, the foam layer helps promote the growth of new epithelial and granulation tissue, thus accelerating the wound healing process.

[0047] Each of the first telescopic components includes a telescopic ring 8 made of silicone; each of the second telescopic components includes a telescopic layer 12 made of silicone. Because silicone has good ductility and excellent biocompatibility, it is used for connecting the shells 2 and the circular support 9, ensuring that the shells 2 have good adjustability, thereby enabling precise size adjustment based on wound monitoring results.

[0048] The specific implementation process is as follows: First, the camera 6 collects image information of the abdominal wall wound and transmits it to the controller. The controller analyzes the wound area and determines its size. Then, based on the size of the abdominal wall wound, the controller controls the movement of the servo motor, thereby driving the worm gear fixedly connected to the output shaft of the servo motor. Because the worm wheel meshes with the worm gear, it drives the worm wheel to rotate. The inner ring of the worm wheel is threaded to the outer wall of the adsorption tube 1 and is a ball screw structure. At the same time, because the adsorption tube 1 is manually 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 of the adsorption tube 1, so that the moving seat 11 can also move along the axis of the adsorption tube 1. The tube 1 moves axially. Since the moving seat 11 is hinged to a connecting rod 10, which is also hinged to the corresponding housing 2, the connecting rod 10 exerts a certain pulling or pushing force on the housing 2 when the moving seat 11 moves. Simultaneously, because the housings 2 are connected by a telescopic layer 12 and the housing 2 is connected to the circular support 9 by a telescopic ring 8 (both made of silicone), the housing 2 can move accordingly due to the pulling or pushing force of the connecting rod 10. This allows for adjustment of the coverage area of ​​the housing 2, enabling it to be adjusted to a suitable coverage area according to different wound sizes, thereby improving the efficiency of subsequent negative pressure adsorption. Furthermore, the adjusted housing 2 is attached to the patient's wound, and gentle pressure is applied to ensure better adhesion, reducing the gap between the housing 2 and the abdominal wall. This improves the airtightness of the adsorption cavity formed after the housing 2 is attached, further enhancing adsorption and reducing the possibility of wound exudate flowing to other areas.

[0049] During negative pressure wound cleaning of the abdominal wall wound, temperature sensor 4 monitors the pressure and temperature within the suction chamber in real time and transmits this data to the controller. The controller visualizes this data so that doctors can promptly understand the basic condition of the wound and adjust the treatment plan accordingly, improving the safety of the entire debridement process and reducing the possibility of wound infection. Simultaneously, camera 6 monitors the wound in real time, and the controller analyzes this image information to determine the basic condition of the wound, adjusting the output power of the negative pressure machine based on the actual situation to ensure efficient cleaning while maintaining high safety.

[0050] During the negative pressure adsorption process, the negative pressure in the adsorption tube 1 causes the expansion component to move, thereby allowing air from the air pump to enter the expansion component and cause it to expand. This reduces the space inside the adsorption chamber when the adsorption chamber formed after the adjustment of the shell 2 is large, thus quickly completing the initial pressure adjustment during negative pressure adsorption, improving adsorption efficiency, and reducing the possibility of adsorption instability caused by an excessively large chamber.

[0051] Example 2:

[0052] As attached Figure 3As shown, the difference from Embodiment 1 is that the expansion assembly includes a movable groove 13 opened on the inner wall of the adsorption tube 1, a movable block 14 slidably fitted in the movable groove 13, a vent pipe 15 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 bladder 3 opposite to the housing 2, the vent pipe 15 is slidably fitted with the adsorption tube 1, a vent hole 17 is opened at one end of the vent pipe 15 near 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, the negative pressure inside the adsorption tube 1 will generate a certain suction force on the moving block 14. Since the moving block 14 and the ventilation tube 15 fixedly connected to it can slide along their respective limiting paths, when the suction force is greater than the weight 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. As a result, the ventilation holes 17 on the surface of the ventilation tube 15 will gradually align with their 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 inflate it. As the moving block 14 rises, the ventilation tube 15 it drives will also become longer, increasing the weight and thus maintaining balance with the adsorption force. Therefore, the movement of the moving block 14 can be automatically adjusted according to the magnitude of the adsorption force. When the controller determines that the wound image requires a larger adsorption force, it increases the adsorption force, and the airbag 3 will also inflate quickly to reduce the space of the adsorption chamber, thereby quickly adjusting the pressure inside the adsorption chamber and accelerating the adsorption efficiency.

[0054] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. An abdominal wall negative pressure suction device with wound monitoring function, comprising a controller and an adsorption tube (1), wherein the adsorption tube (1) is connected to a negative pressure machine, and the controller is electrically connected to the negative pressure machine, characterized in that, The bottom end of the adsorption tube (1) is fixedly connected to the application component, the top end of the adsorption tube (1) is connected to the first pump component, the outer wall of the adsorption tube (1) is fixedly connected to the circular support base (9), the outer wall of the circular support base (9) is hinged with several shells (2) along its circumference, and the connection is provided with a first telescopic component for limiting the movement of the shell (2) along the connection between it and the circular support base (9) and sealing the connection between the shell (2) and the circular support base (9), and a second telescopic component is provided between adjacent shells (2) 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 threaded with a drive assembly for rotating the housing (2) along the connection between it and the circular support (9). The adsorption tube (1) is provided with an expansion assembly for adjusting the volume of the cavity inside the housing (2) after it covers the wound. The expansion assembly is connected to a second pump assembly. The inner wall of the housing (2) is provided with a signal assembly for acquiring wound images, wound temperature and pressure. The first pump assembly, the second pump assembly, the drive assembly and the signal assembly are all electrically connected to the controller. The expansion assembly includes a movable groove (13) on the inner wall of the adsorption tube (1), a movable block (14) is slidably connected in the movable groove (13), a vent pipe (15) is fixedly connected to 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 several air bladders (3) corresponding to the shell (2), the air bladders (3) are fixedly connected to the inner top wall of the shell (2), the vent pipe (15) is vertically slidably engaged with the inner wall of the adsorption tube (1), a vent hole (17) is opened on one side of the lower part of the vent pipe (15), and a vent port (16) corresponding to the vent hole (17) is provided on the surface of the adsorption tube (1), the vent port (16) and the vent hole (17) can communicate with each other, and the vent port (16) is connected with the second pump assembly; The drive assembly includes a movable seat (11) that is slidably connected to the adsorption tube (1). The movable seat (11) is divided into a drive cavity and a moving cavity. A servo motor is fixedly connected in the drive cavity. A worm wheel and a worm are provided in the moving cavity. The worm wheel and the worm mesh. 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. The other end of the worm is coaxially fixedly connected to the output shaft of the servo motor. Several connecting rods (10) corresponding to the housing (2) are hinged to the outside of the movable seat (11). The end of the connecting rod (10) away from the movable seat (11) is hinged to the surface of the housing (2). The servo motor is electrically connected to the controller.

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

3. The abdominal wall negative pressure suction device with wound monitoring function according to claim 2, characterized in that: The second telescopic component includes a telescopic layer (12), which is made of silicone.

4. The abdominal wall negative pressure suction device with wound monitoring function according to claim 3, characterized in that: The signal components include 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 fixedly connected to the inner wall of the housing (2). The camera (6) is embedded in the bottom of the adsorption tube (1). The endoscopes (18) are respectively set on the side surface of the patch assembly. The pressure sensor (7), the temperature sensor (4), the camera (6), and the endoscopes (18) are all electrically connected to the controller.

5. The abdominal wall negative pressure suction device with wound monitoring function according to claim 4, characterized in that: A camera (6) and an endoscope (18) were used to acquire images of the abdominal wound; The controller is used to determine and obtain information about the area of ​​the abdominal wound based on the image information of the abdominal wound, and then control the movement of the drive components based on the area of ​​the abdominal wound. It is also used to control the output power of the negative pressure machine based on the image information of the abdominal wound.

6. The abdominal wall negative pressure suction device with wound monitoring function according to claim 5, characterized in that: The dressing assembly includes a foam layer (5) detachably connected to the bottom of the adsorption tube (1); and an endoscope (18) disposed on the side surface of the foam layer.

7. The abdominal wall negative pressure suction device with wound monitoring function according to claim 6, characterized in that: The first pump assembly includes a negative pressure unit and a first connecting pipe. One end of the first connecting pipe is connected to the adsorption tube (1), and the other end of the first connecting pipe is connected to the negative pressure unit. The negative pressure unit is electrically connected to the controller.

8. The abdominal wall negative pressure suction device with wound monitoring function according to claim 7, characterized in that: 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, and the other end of the second connecting pipe is connected to the air inlet (16). The air pump is electrically connected to the controller.

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