Abdominal drainage tube leak prevention device

Abstract

This utility model relates to a leakage prevention and drainage device for abdominal drainage tubes, comprising: a base and a leakage prevention membrane assembly. The front side of the base is adhesive and has a drainage tube inlet hole, while the rear side has an exudate collection groove that communicates with the drainage tube inlet hole. The leakage prevention membrane assembly is located behind the base and includes a base plate and a leakage prevention membrane connected sequentially. The base plate has a drainage tube through hole communicating with the interior of the leakage prevention membrane, and the leakage prevention membrane has a drainage tube outlet hole and an exudate outlet hole communicating with the interior and exterior of the leakage prevention membrane, respectively. The base has a connecting portion arranged circumferentially along the exudate collection groove, and the base plate has a mating portion arranged circumferentially along the drainage tube through hole. One of the connecting portion and the mating portion is a groove, and the other is a protrusion. The protrusion is engaged within the groove to connect the base and the base plate and to communicate the drainage tube through hole with the exudate collection groove.

Description

Technical Field

[0001] This utility model relates to the field of medical supplies technology, and more specifically, to a leak-proof drainage device for abdominal drainage tubes. Background Technology

[0002] Patients undergoing minimally invasive laparoscopic or open surgery require postoperative placement of an abdominal drainage tube or T-tube to facilitate the drainage of exudate and blood from the surgical area. However, due to the reduction of edema around the drainage tube postoperatively and technical reasons such as the fixation of the drainage tube during surgery, ascites, peritoneal effusion, and bile may leak from the side of the drainage tube. The irritating fluids that leak out will not only soak the patient's clothing, causing discomfort and increasing the workload of medical staff in changing wound dressings, but also increase the incidence of infection in the drainage tube wound and surrounding wounds.

[0003] Current techniques involve applying gauze around the wound to absorb leaking fluids such as ascites. However, due to the low absorbency of gauze, frequent changes are necessary for large or continuous ascites leaks, otherwise it will quickly become saturated. On the one hand, frequent gauze changes increase the workload for medical staff; on the other hand, prolonged contact between the absorbed ascites and the skin can cause skin maceration, eczema, and other problems, prolonging healing time and reducing patient comfort. Utility Model Content

[0004] The purpose of this utility model is to provide a leak-proof drainage device for abdominal drainage tubes, which solves the technical problems of how to reduce the workload of medical staff and how to improve the comfort of patients.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.

[0006] This utility model provides a leakage prevention and drainage device for abdominal drainage tubes, comprising: a base with an adhesive front side and a drainage tube inlet, and an exudate collection groove on its rear side, wherein the exudate collection groove is connected to the drainage tube inlet; a leakage prevention membrane assembly located behind the base, comprising a base plate and a leakage prevention membrane connected in sequence, wherein the base plate has a drainage tube through hole communicating with the interior of the leakage prevention membrane, and the leakage prevention membrane has a drainage tube outlet hole and an exudate outlet hole communicating with the interior and exterior of the leakage prevention membrane, respectively; wherein, the base has a connecting part arranged circumferentially along the exudate collection groove, and the base plate has a mating part arranged circumferentially along the drainage tube through hole, wherein one of the connecting part and the mating part is a groove and the other is a protrusion, the protrusion being engaged in the groove to connect the base and the base plate and to connect the drainage tube through hole with the exudate collection groove.

[0007] In some embodiments of this application, the connecting portion is a groove, including a locking groove and a positioning groove arranged around the outer periphery of the seepage collection groove, and the locking groove and the positioning groove are arranged sequentially from the inside to the outside along the radial direction of the seepage collection groove; the mating portion is a protrusion, including a positioning ring arranged around the outer periphery of the drainage tube through hole and a locking arm arranged around the inner periphery of the positioning ring; the positioning ring is embedded in the positioning groove, the locking arm is located in the locking groove, and the locking arm and the locking groove form a limiting fit to prevent the locking arm from dislodging from the locking groove.

[0008] In some embodiments of this application, the base includes a fixing part and a first part and a second part respectively connected to the fixing part. The second part is arranged around the outer periphery of the first part. The first part is provided with an annular barb portion. The barb portion is located between the first part and the second part and extends along the side opposite to the drainage tube through hole. The connecting part is formed between the first part, the fixing part, the second part and the barb portion, and the locking groove is formed between the barb portion, the first part and the fixing part. One end of the locking arm is connected to the positioning ring, and the other end extends toward the side close to the drainage tube through hole, and the locking arm and the barb portion are engaged with each other.

[0009] In some embodiments of this application, both the locking arm and the positioning ring are elastic.

[0010] In some embodiments of this application, the drainage tube through-hole includes a first drainage tube through-hole and a second drainage tube through-hole that are connected to each other; the chassis includes an adhesive silicone layer and a skin-friendly silicone layer arranged sequentially front and back, the adhesive silicone layer is provided with the mating part and has the first drainage tube through-hole, and the mating part is arranged circumferentially along the first drainage tube through-hole; the skin-friendly silicone layer is connected to the leak-proof membrane and has the second drainage tube through-hole that communicates with the interior of the leak-proof membrane.

[0011] In some embodiments of this application, the leak-proof membrane includes a body and a funnel-shaped outlet pipe. The body is used to connect to the chassis. The outlet pipe is located outside the body and includes a narrowed portion and an equal-diameter portion. The flared end of the narrowed portion is connected to the body to communicate with the interior of the body. One end of the equal-diameter portion is connected to the narrowed end of the narrowed portion, and the other end is the outlet hole of the drain pipe.

[0012] In some embodiments of this application, the leak-proof membrane includes a body and a leakage channel. The body is used to connect to the chassis, the leakage channel is located outside the body, the leakage channel has a narrowed diameter structure, the narrowed end of the leakage channel is connected to the body to communicate with the interior of the body, and the flared end of the leakage channel is the leakage outlet.

[0013] In some embodiments of this application, the body is dome-shaped with a larger upper part and a smaller lower part, and both the drainage tube outlet and the seepage outlet are connected to the lower part, with the seepage outlet located below the drainage tube outlet.

[0014] As can be seen from the above technical solution, the embodiments of this utility model have at least the following advantages and positive effects:

[0015] In the leakage prevention drainage device of the abdominal drainage tube in this embodiment of the utility model, the front side of the base is used to adhere to and fit on the patient's skin, and the connecting part on the base and the mating part on the chassis form a locking fit, which can ensure a stable connection between the base and the leakage prevention membrane assembly and ensure the stability of the overall structure. On the other hand, a sequential connection was established between the drainage tube inlet, the exudate collection tank, the drainage tube through-hole, and the leak-proof membrane. Specifically, the drainage tube extending from the patient's body sequentially passes through the drainage tube inlet, the exudate collection tank, and the drainage tube through-hole into the leak-proof membrane, and finally exits from the drainage tube outlet. During this process, exudate is collected in the exudate collection tank through the drainage tube inlet. As the fluid volume increases, the exudate begins to be collected in the leak-proof membrane through the drainage tube through-hole and is finally discharged through the exudate outlet. Both the exudate collection tank and the leak-proof membrane serve to temporarily store ascites. Compared with the existing technology that uses gauze to absorb exudate, this eliminates the need for frequent gauze changes, thereby reducing the workload of medical staff. Furthermore, this abdominal drainage tube leak-proof drainage device can effectively guide exudate and avoid a series of problems caused by prolonged contact between exudate and the skin, thus improving patient comfort. Attached Figure Description

[0016] The various objectives, features, and advantages of this invention will become more apparent from the following detailed description of preferred embodiments in conjunction with the accompanying drawings. The drawings are merely illustrative illustrations of the invention and are not necessarily drawn to scale. In the drawings, the same reference numerals always denote the same or similar parts. Wherein:

[0017] Figure 1 This is a schematic diagram of a leakage prevention drainage device for abdominal drainage tubes, according to an exemplary embodiment.

[0018] Figure 2 yes Figure 1 A detailed structural diagram.

[0019] Figure 3 yes Figure 1 Top view of the base.

[0020] Figure 4 yes Figure 1A schematic diagram of the specific structure of the central assembly.

[0021] The annotations in the attached figures are explained as follows:

[0022] 1. Base; 11. Fixing part; 12. First part; 121. Barb part; 13. Second part; 14. Connecting part; 141. Locking groove; 142. Positioning groove; 15. Drainage pipe inlet; 16. Leakage collection tank;

[0023] 2. Leak-proof membrane assembly; 21. Chassis; 211. Adhesive silicone layer; 212. Skin-friendly silicone layer; 213. Fitting part; 2131. Positioning ring; 2132. Locking arm; 214. Drainage tube through hole; 22. Leak-proof membrane; 221. Body; 222. Outlet pipe; 2221. Reduced diameter section; 2222. Equal diameter section; 2223. Drainage tube outlet; 223. Leakage pipe; 2231. Leakage outlet;

[0024] 3. Drainage tube. Detailed Implementation

[0025] Although the present invention can be readily embodied in various forms, only some specific embodiments are shown in the accompanying drawings and will be described in detail in this specification. It is understood that this specification should be regarded as an exemplary illustration of the principles of the present invention and is not intended to limit the present invention to what is described herein.

[0026] Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the present invention, and does not imply that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0027] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various elements of this invention are relative rather than absolute. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, these directional indications also change accordingly.

[0028] Please see Figures 1 to 3The abdominal drainage tube leakage prevention device provided in one embodiment of this utility model mainly includes a base 1 and a leakage prevention membrane assembly 2. The front side of the base 1 is adhesive and has a drainage tube inlet 15. The rear side has an exudate collection tank 16, which is connected to the drainage tube inlet 15. The leakage prevention membrane assembly 2 is located behind the base 1 and includes a base plate 21 and a leakage prevention membrane 22 connected in sequence. The base plate 21 has a drainage tube through hole 214 that communicates with the inside of the leakage prevention membrane 22. The leakage prevention membrane 22 has a drainage tube outlet hole 2223 and an exudate outlet hole 2231 that communicate with the inside and outside of the leakage prevention membrane 22, respectively. The base 1 is provided with a connecting part 14 arranged circumferentially along the seepage collection tank 16, and the chassis 21 is provided with a mating part 213 arranged circumferentially along the drainage pipe through hole 214. One of the connecting part 14 and the mating part 213 is a groove and the other is a protrusion. The protrusion is engaged in the groove to connect the base 1 and the chassis 21 and to make the drainage pipe through hole 214 communicate with the seepage collection tank 16.

[0029] In this embodiment of the abdominal drainage tube leak-proof drainage device, the front side of the base 1 is used to adhere to the patient's skin. The connecting part 14 on the base 1 and the mating part 213 on the chassis 21 form a locking fit, which ensures a stable connection between the base 1 and the leak-proof membrane assembly 2, thus ensuring the stability of the overall structure. Furthermore, it establishes a sequential connection between the drainage tube inlet 15, the exudate collection tank 16, the drainage tube through hole 214, and the interior of the leak-proof membrane 22. Specifically, the drainage tube 3 extending from the patient's body sequentially passes through the drainage tube inlet 15, the exudate collection tank 16, and the drainage tube through hole 214 into the interior of the leak-proof membrane 22, and finally exits from the drainage tube outlet 2223. During this process, exudate is collected in the exudate collection tank 16 through the drainage tube inlet 15. As the amount of fluid increases, the exudate... The fluid is initially collected through the drainage tube through hole 214 into the leak-proof membrane 22, and eventually discharged through the exudate outlet hole 2231. Both the exudate collection tank 16 and the leak-proof membrane 22 serve to temporarily store ascites. Compared with the existing technology that uses gauze to absorb the exudate, this eliminates the need for frequent gauze changes, thereby reducing the workload of medical staff. Furthermore, this abdominal drainage tube leak-proof drainage device can effectively guide the exudate, avoiding a series of problems caused by prolonged contact between the exudate and the skin, thus improving the patient's comfort.

[0030] It should be noted that, in the above embodiments and the following embodiments, the front side is the side that is close to the patient's skin in the use state, and the rear side is the side that is away from the patient's skin.

[0031] It should be noted that in the above embodiments and the following embodiments, the seepage collection tank 16 is a pot-shaped structure similar to the Tianyan (Sky Eye).

[0032] Please see Figure 2 and Figure 4 In one embodiment where the connecting portion 14 and the mating portion 213 are respectively a groove and a protrusion, with the protrusion engaged within the groove, the connecting portion 14 is a groove and includes a locking groove 141 and a positioning groove 142 arranged around the outer periphery of the seepage collection tank 16, and the locking groove 141 and the positioning groove 142 are arranged sequentially from the inside to the outside along the radial direction of the seepage collection tank 16. The mating portion 213 is a protrusion and includes a positioning ring 2131 arranged around the outer periphery of the drainage tube through hole 214 and a locking arm 2132 arranged around the inner periphery of the positioning ring 2131. The positioning ring 2131 is embedded in the positioning groove 142, and the locking arm 2132 is located in the locking groove 141, and the locking arm 2132 and the locking groove 141 form a limiting fit to prevent the locking arm 2132 from dislodging from the locking groove 141.

[0033] The limiting fit formed between the locking arm 2132 and the locking groove 141 resists external pulling forces and prevents the base 1 and the leak-proof membrane assembly 2 from separating, thereby improving the connection stability and reliability of the overall structure. The positioning ring 2131 is embedded in the positioning groove 142, which serves two purposes: firstly, to ensure accurate alignment between the drainage pipe through hole 214 and the seepage collection tank 16 to form a connection; and secondly, to prevent movement between the locking arm 2132 and the locking groove 141.

[0034] It should be noted that the arrangement of the locking arm 2132 around the inner circumference of the positioning ring 2131 can be either a single locking arm 2132 in a ring structure surrounding the inner circumference of the positioning ring 2131, or multiple locking arms 2132 spaced apart circumferentially around the inner circumference of the positioning ring 2131. The arrangement of a single locking arm 2132 in a ring structure around the inner circumference of the positioning ring 2131 increases the range of action between the locking arm 2132 and the locking groove 141, and allows the limiting force between them to be evenly distributed, thereby further improving the stability of the connection.

[0035] In other embodiments, the connecting part 14 is a protrusion and the mating part 213 is a groove. The specific structure of the connecting part 14 and the mating part 213 is designed with reference to the above embodiments and will not be described in detail here.

[0036] In one embodiment where the locking arm 2132 and the locking groove 141 form a limiting fit to prevent the locking arm 2132 from disengaging from the locking groove 141, the base 1 includes a fixing part 11 and a first part 12 and a second part 13 respectively connected to the fixing part 11. The second part 13 is arranged around the outer periphery of the first part 12. The first part 12 is provided with an annular barb 121, which is located between the first part 12 and the second part 13 and extends along the side opposite to the drainage tube through hole 214. A connecting part 14 is formed between the first part 12, the fixing part 11, the second part 13, and the barb 121, and a locking groove 141 is formed between the barb 121, the first part 12, and the fixing part 11. One end of the locking arm 2132 is connected to the positioning ring 2131, and the other end extends toward the side close to the drainage tube through hole 214, and the locking arm 2132 and the barb 121 are engaged with each other.

[0037] The barb 121 and the locking arm 2132 can form a two-way interlocking structure. The cooperation between the positioning groove 142 and the positioning ring 2131 can also limit the lateral displacement between the barb 121 and the locking arm 2132, thereby improving the stability of the connection.

[0038] In this embodiment, the barb portion 121 has a chamfer on the side near the first portion 12, and the locking arm 2132 gradually tapers radially from the end connected to the positioning ring 2131 to the other end near the drainage tube through hole 214. The chamfer of the barb portion 121 and the inclined tapering locking arm 2132 cooperate to facilitate the locking arm 2132 sliding into the locking groove 141, thereby reducing assembly resistance.

[0039] In a specific embodiment, both the locking arm 2132 and the positioning ring 2131 are elastic. During assembly, the locking arm 2132 and the positioning ring 2131 are compressed as a whole to gradually enter the positioning groove 142. When the locking arm 2132 is aligned with the locking groove 141, the locking arm 2132 springs back into the locking groove 141 and engages with the barb portion 121. Subsequently, the positioning ring 2131 springs back to fit within the positioning ring 2131, thereby completing the connection between the connecting portion 14 and the mating portion 213. This is quick and easy to operate, and the elastic characteristics of the locking arm 2132 and the positioning ring 2131 improve the overall structure's seismic resistance and sealing performance.

[0040] It should be noted that the positioning ring 2131 is embedded in the positioning groove 142, which also reduces the possibility of leakage from the connection between the drainage pipe through hole 214 and the leakage collection groove 16, and enhances the overall sealing performance.

[0041] In other embodiments, both the locking arm 2132 and the positioning ring 2131 are rigid. There are multiple locking arms 2132, spaced circumferentially. The annular barb portion 121 has circumferentially spaced clearance openings, the same number as the locking arms 2132, with the spacing between the clearance openings matching the spacing between the locking arms 2132. Specifically, the locking arm 2132 enters the locking groove 141 through the clearance opening. Then, the locking arm 2132 is rotated to form a bidirectional interlock between the locking arm 2132 and the barb portion 121. However, under external force, the locking arm 2132 and the barb portion 121 may rotate relative to each other, causing the interlock to fail, reducing the stability of the connection. Furthermore, this implementation method reduces the overall structure's seismic resistance and sealing performance.

[0042] In a specific embodiment, the drainage tube through-hole 214 includes a first drainage tube through-hole and a second drainage tube through-hole that are connected to each other. The chassis 21 includes an adhesive silicone layer 211 and a skin-friendly silicone layer 212 arranged sequentially from front to back. The adhesive silicone layer 211 is provided with a mating part 213 and has a first drainage tube through-hole. The mating part 213 is arranged circumferentially along the first drainage tube through-hole. The skin-friendly silicone layer 212 is connected to the leak-proof membrane 22 and has a second drainage tube through-hole that communicates with the interior of the leak-proof membrane 22.

[0043] The first and second drainage tube through holes ensure that the drainage tube and exudate can pass through the adhesive silicone layer 211 and the skin-soft silicone layer 212 in sequence, and smoothly enter the leak-proof membrane 22 from the exudate collection tank 16. The adhesive silicone layer 211 is used to adhere to the patient's skin, so that the leak-proof membrane assembly 2, which is indirectly fixed to the patient's skin through the base 1, adds a direct fixation relationship, making the overall fixation more stable. The skin-soft silicone layer 212 is used to provide the patient with a more comfortable contact experience, further improving the patient's comfort.

[0044] Please see Figure 1 and Figure 2 In a specific embodiment, the leak-proof membrane 22 includes a body 221 and a funnel-shaped outlet pipe 222. The body 221 is used to connect to the chassis 21. The outlet pipe 222 is located outside the body 221 and includes a reduced diameter portion 2221 and a constant diameter portion 2222. The flared end of the reduced diameter portion 2221 is connected to the body 221 to communicate with the interior of the body 221. One end of the constant diameter portion 2222 is connected to the reduced diameter end of the reduced diameter portion 2221, and the other end is a drain outlet 2223.

[0045] The reduced diameter portion 2221 facilitates the free end of the drainage tube 3 inside the main body 221 to extend out of the main body 221, while the equal diameter portion 2222 can fit against the outer wall of the drainage tube 3, thus fixing and sealing the drainage tube 3.

[0046] In a specific embodiment, the leak-proof membrane 22 includes a body 221 and an exudate conduit 223. The body 221 is connected to the chassis 21, and the exudate conduit 223 is located outside the body 221. The exudate conduit 223 has a narrowed diameter structure, with its narrowed end connected to the body 221 to communicate with the interior of the body 221. The flared end of the exudate conduit 223 serves as an exudate outlet 2231. The narrowed diameter structure of the exudate conduit 223 facilitates faster exudate flow, accelerating the rate at which exudate is discharged from the body 221 and the exudate conduit 223 of the leak-proof membrane 22, reducing residual fluid accumulation, lowering the risk of backflow, and reducing the burden on nursing staff.

[0047] In a specific embodiment, the body 221 is dome-shaped, with a larger upper part and a smaller lower part. Both the drainage tube outlet 2223 and the seepage outlet 2231 are connected to the lower part, and the seepage outlet 2231 is located below the drainage tube outlet 2223. The seepage collected within the body 221 is preferentially concentrated in the lower part of the body 221 due to gravity. The connection between the drainage tube outlet 2223 and the lower part facilitates the arrangement of the drainage tube 3, allowing it to naturally extend downwards. The seepage outlets 2231 are all connected to the lower part and located below the drainage tube outlet 2223, guiding the seepage within the body 221 to preferentially flow out through the seepage outlets 2231. This ensures that the processes of the drainage tube 3 extending out of the body 221 and the seepage draining from the body 221 can occur independently.

[0048] It should be noted that the upper part refers to the part that is away from the ground when in use, and the lower part refers to the part that is close to the ground when in use. It can be imagined that in the above embodiments, the base 1 and the chassis 21 are connected by the positioning ring 2131 and the positioning groove 142, as well as the locking arm 2132 and the locking groove 141. The above components are arranged in a ring. Specifically, the angle of rotation of the chassis 21 relative to the base 1 can be adjusted according to the patient's posture, such as standing, sitting or lying down, so that the lower part can be kept in a downward position. Therefore, the abdominal drainage tube anti-leakage drainage device of this utility model embodiment has universality and adaptability.

[0049] It should be noted that in the above embodiments, a removable plug may be embedded in the seepage outlet 2231. After the plug is removed, the ascites and other liquids collected in the leak-proof membrane 22 can flow out through the seepage outlet 2231.

[0050] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A leak-proof drainage device for abdominal drainage tubes, characterized in that, include: The base has an adhesive surface on its front side and a drainage pipe inlet hole, and a seepage collection tank on its rear side, with the seepage collection tank communicating with the drainage pipe inlet hole. The leak-proof membrane assembly is located behind the base and includes a chassis and a leak-proof membrane connected in sequence. The chassis has a drainage pipe through hole that communicates with the interior of the leak-proof membrane, and the leak-proof membrane has a drainage pipe outlet hole and a seepage outlet hole that communicate with the interior and exterior of the leak-proof membrane, respectively. The base is provided with a connecting part arranged circumferentially along the seepage collection tank, and the chassis is provided with a mating part arranged circumferentially along the drainage pipe through hole. One of the connecting part and the mating part is a groove and the other is a protrusion. The protrusion is engaged in the groove to connect the base and the chassis and to make the drainage pipe through hole communicate with the seepage collection tank.

2. The leakage-preventing drainage device for abdominal drainage tubes according to claim 1, characterized by The connecting part is a groove, and includes a locking groove and a positioning groove arranged around the outer periphery of the seepage collection groove, and the locking groove and the positioning groove are arranged sequentially from the inside to the outside along the radial direction of the seepage collection groove. The mating part is a protrusion and includes a positioning ring arranged around the outer periphery of the drainage tube through hole and a locking arm arranged around the inner periphery of the positioning ring. The positioning ring is embedded in the positioning groove, the locking arm is located in the locking groove, and the locking arm and the locking groove form a limiting fit to prevent the locking arm from coming out of the locking groove.

3. The leakage-preventing drainage device for abdominal drainage tubes according to claim 2, characterized by The base includes a fixing part and a first part and a second part respectively connected to the fixing part. The second part is arranged around the outer periphery of the first part. The first part is provided with an annular barb. The barb is located between the first part and the second part and extends along the side opposite to the drainage tube through hole. The first part, the fixing part, the second part and the barb form the connecting part, and the barb, the first part and the fixing part form the locking groove. One end of the locking arm is connected to the positioning ring, and the other end extends toward the side near the drainage tube through hole, and the locking arm and the barb part are engaged with each other.

4. The anti-leakage drainage device for abdominal drainage tubes according to claim 3, characterized in that, Both the locking arm and the positioning ring are elastic.

5. The anti-leakage drainage device for abdominal drainage tubes according to claim 1, characterized in that, The drainage tube through-hole includes a first drainage tube through-hole and a second drainage tube through-hole that are connected to each other. The chassis includes an adhesive silicone layer and a skin-friendly silicone layer arranged sequentially front and back. The adhesive silicone layer is provided with the mating part and has a first drainage tube through hole. The mating part is arranged circumferentially along the first drainage tube through hole. The skin-friendly silicone layer is connected to the leak-proof membrane and has a second drainage tube through hole communicating with the interior of the leak-proof membrane.

6. The anti-leakage drainage device for abdominal drainage tubes according to claim 1, characterized in that, The leak-proof membrane includes a body and a funnel-shaped outlet pipe. The body is used to connect to the chassis. The outlet pipe is located outside the body and includes a narrowed section and an equal-diameter section. The flared end of the narrowed section is connected to the body to communicate with the interior of the body. One end of the equal-diameter section is connected to the narrowed end of the narrowed section, and the other end is the outlet hole of the outlet pipe.

7. The anti-leakage drainage device for abdominal drainage tubes according to claim 1, characterized in that, The leak-proof membrane includes a body and a leakage channel. The body is used to connect to the chassis. The leakage channel is located outside the body and has a narrowed diameter structure. The narrowed end of the leakage channel is connected to the body to communicate with the interior of the body, and the flared end of the leakage channel is the leakage outlet.

8. The anti-leakage drainage device for abdominal drainage tubes according to claim 6 or 7, characterized in that, The main body is dome-shaped, with a larger upper part and a smaller lower part. The drainage tube outlet and the seepage outlet are both connected to the lower part, and the seepage outlet is located below the drainage tube outlet.

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