An improved extramural insertion suction cup drainage device

Abstract

This utility model relates to the field of medical device technology and discloses an improved extramural suction cup drainage device, including a drainage tube. One end of the drainage tube is fixedly connected to a docking mechanism, and a connecting mechanism is fixedly connected to the outside of the drainage tube. A suction cup mechanism is slidably connected inside the connecting mechanism, and a plug inner tube is fixedly connected inside the drainage tube. The connecting mechanism includes a drainage plug, and multiple sliding rods are slidably connected inside the drainage plug. One end of each sliding rod is fixedly connected to a limiting plate, and a spring is fixedly connected to the inner side of the limiting plate. In this utility model, medical personnel can flexibly select a suction cup of appropriate size according to the patient's specific condition and surgical needs in clinical application without worrying about the connection problem between the drainage tube and the suction cup, thus improving the scope and flexibility of the device's use.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an improved extramural insertion suction cup drainage device. Background Technology

[0002] The improved extramural suction cup drainage device, as a related equipment for negative pressure wound therapy, is composed of polyvinyl alcohol sponge and other components. It works by closed negative pressure suction and can be used for various skin and soft tissue wounds. It has significant advantages in promoting wound healing, improving patient comfort, facilitating medical and nursing operations, and reducing medical costs.

[0003] A search revealed Chinese Patent Publication No. CN201922128289.6, which discloses an extramural suction cup drainage device for wound treatment. The device includes a suction cup, a sealing surgical membrane, and a drainage tube. The drainage tube comprises a tube body and connectors and plugs located at both ends. The suction cup comprises a suction cup body and suction cup connectors and flared openings located at both ends. The connector of the drainage tube and the suction cup connector of the suction cup are detachably connected. The sealing surgical membrane is located between the drainage tube and the suction cup, with the suction cup positioned on the side of the sealing surgical membrane closer to the wound surface. This invention places the suction cup inside the sealing surgical membrane and fixes the drainage tube outside. During pulsed negative pressure treatment, the suction cup will not detach after the negative pressure is lost. Furthermore, the suction cup can be strategically positioned according to the specific conditions of different wounds. This drainage device is low-cost, uses few components, and is simple to operate, minimizing the risk of accidents during treatment and improving treatment effectiveness.

[0004] The beneficial effects mentioned in the aforementioned patent specification include: "According to the size and shape of the wound after debridement, the dressing 4 is cut; the dressing 4 is applied to the wound. If the wound is large or there are multiple severely injured areas, two or more suction cups 3 can be placed; the sealing surgical membrane 2 is cut and placed over the dressing 4 and suction cups 3. The periphery of the sealing surgical membrane 2 is firmly adhered to the healthy skin to ensure the seal between the sealing surgical membrane 2 and the wound; the staff holds the suction cup connector 31 with one hand and the connector 11 of the drainage tube 1 with the other hand, and inserts the suction cup connector 31 into the drainage tube." In the plug 13 of tube 1, the suction cup connector 31 is limited by the limiting structure at the opening of the plug 13 of the drainage tube 1, so that the plug 13 and the suction cup connector 31 are tightly connected. At this time, the sealing surgical membrane 2 is squeezed between the two. At the same time, the inner tube 131 inside the plug 13 punctures the sealing surgical membrane 2 and inserts into the suction cup connector 31. The connector 11 of the drainage tube 1 is inserted into the negative pressure source of the negative pressure drainage machine. The negative pressure drainage machine is turned on, and the negative pressure closed drainage treatment begins. Under the action of negative pressure, the drainage fluid flows along the inner tube 131 through the drainage tube body 12 to the negative pressure drainage machine. Although the above patent can realize the drainage of patients, it cannot adapt to suction cups with slightly different sizes when installing suction cups. Therefore, an improved extra-membrane insertion suction cup drainage device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an improved extra-membrane insertion suction cup drainage device, which aims to improve the problem that the existing technology cannot adapt to suction cups of different sizes.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An improved extramural insertion suction cup drainage device includes a drainage tube, one end of which is fixedly connected to a docking mechanism, the outside of which is fixedly connected to a connecting mechanism, the inside of which is slidably connected to a suction cup mechanism, and the inside of which is fixedly connected to a plug inner tube.

[0008] The connecting mechanism includes a drain plug, a plurality of sliding rods are slidably connected inside the drain plug, a limiting plate is fixedly connected to one end of the sliding rod, a spring is fixedly connected to the inner side of the limiting plate, a limiting disc is fixedly connected to the end of the sliding rod away from the limiting plate, and a sealing component is fixedly connected inside the docking mechanism;

[0009] Through the above technical solution: when using the drainage device, first connect the docking mechanism at one end of the drainage tube to the external equipment. The sealing component in the docking mechanism ensures a tight connection without leakage. The drainage plug in the connection mechanism is used to cooperate with the suction cup mechanism. Slide the fixing rod of the suction cup mechanism into the drainage plug, which will squeeze the limiting plate at the inner end of the sliding rod. The second spring is compressed. When the limiting plate slides to the middle of the outer sealing ring of the fixing rod, the second spring rebounds, so that the limiting plate and the fixing rod are tightly connected, realizing a stable connection between the suction cup mechanism and the drainage tube, thereby allowing the drainage device to effectively perform extramural drainage.

[0010] As a further description of the above technical solution:

[0011] The sealing assembly includes a sealing shell, the outer side of which is fixedly connected to the inside of the docking mechanism, and a plurality of springs are fixedly connected to the inside of the sealing shell, with a sealing gasket fixedly connected to the other end of each spring.

[0012] The above technical solution involves connecting the docking mechanism to an external device during use. When connecting, the external device compresses the sealing gasket, compressing the spring. After the connection is completed, the spring rebounds, pushing the sealing gasket to fit tightly against the external device. By utilizing the cooperation between the sealing shell and the sealing gasket, gaps are reduced, preventing liquid or gas leakage and ensuring the sealing of the connection point of the drainage device.

[0013] As a further description of the above technical solution:

[0014] The docking mechanism includes a sliding column, a rotating column is slidably connected inside the sliding column, a plurality of limiting blocks are fixedly connected to the outside of the rotating column, a plurality of slots are opened inside the sliding column, and the outside of the sealing shell is fixedly connected to the inside of the rotating column.

[0015] The above technical solution works as follows: When in use, the sliding column is first removed from the outside of the rotating column, connected to the transmission pipeline, and then slid back. During the sliding process, the sliding column squeezes the sealing component. When it reaches its limit, the rotating column is rotated so that the limiting block is engaged in the slot of the sliding column. Under the action of the spring, the sealing component causes the sliding column to move outward, and the limiting block and the slot fit tightly together to achieve docking and ensure a seal.

[0016] As a further description of the above technical solution:

[0017] The suction cup mechanism includes a fixing rod, a fixing suction cup is fixedly connected to the bottom of the fixing rod, and two sealing rings are fixedly connected to the outer side of the fixing rod;

[0018] The above technical solution involves inserting the fixed rod into the drainage plug of the connecting mechanism when using the drainage device. During insertion, the fixed rod presses against the limiting plate. When the limiting plate slides to the middle of the two sealing rings, the spring returns, making the limiting plate tightly connected to the fixed rod. The fixed suction cup is then attached to the appropriate position, and the sealing rings prevent liquid leakage, ensuring the stable operation of the drainage device.

[0019] As a further description of the above technical solution:

[0020] A fixing ring is fixedly connected inside the sliding column, and a protrusion is fixedly connected to the front end of the fixing ring;

[0021] Through the above technical solution: when the sliding column and the rotating column are connected, the protrusion moves with the sliding column, squeezing the sealing gasket inside the rotating column, and cooperating with the fixing ring for positioning, which helps to achieve a tight connection and good sealing, ensuring the normal operation of the drainage device.

[0022] As a further description of the above technical solution:

[0023] The end of the protrusion away from the fixing ring is slidably connected to the outside of the sealing gasket, and the outside of the sealing gasket is slidably connected to the inside of the sealing shell;

[0024] The above technical solution works as follows: when the sliding column moves the protrusion, the protrusion squeezes the sealing gasket, causing it to fit against the sealing shell, thereby forming a tight seal inside the sealing shell, effectively preventing leakage and ensuring the operation of the drainage device.

[0025] As a further description of the above technical solution:

[0026] The outer side of the sealing ring is slidably connected to the outer side of the limiting plate, and the inner side of the limiting plate is slidably connected to the outer side of the fixing rod.

[0027] The above technical solution works as follows: when the fixing rod is inserted into the drainage plug, the limiting plate is squeezed outward. After it is inserted into place, the limiting plate springs back, with its inner side fitting against the fixing rod and its outer side engaging with the sealing ring to prevent liquid leakage.

[0028] As a further description of the above technical solution:

[0029] A rotating ring is fixedly connected to the front end of the rotating column, and the outer side of the rotating ring is rotatably connected to the inside of the drainage tube.

[0030] The above technical solution involves connecting the rotating column to the drainage pipe via a rotating ring. When the rotating column is rotated, the rotating ring rotates accordingly, providing stable support for the rotating column, ensuring its smooth rotation, and facilitating device docking and operation.

[0031] This utility model has the following beneficial effects:

[0032] 1. In this utility model, by using a drainage plug in conjunction with a sliding rod, a sliding rod in conjunction with a limiting plate, and a limiting plate in conjunction with a spring, it is possible to connect suction cups of different sizes. This design allows the drainage device to be adapted to suction cups of various sizes, eliminating the need for special drainage tubes or connecting parts for suction cups of different sizes. In clinical applications, medical staff can flexibly select the appropriate size suction cup according to the patient's specific condition and surgical needs, without worrying about the connection problem between the drainage tube and the suction cup, thus improving the scope of use and flexibility of the device.

[0033] 2. In this invention, a sliding column, a fixing ring, and a groove are used; the fixing ring is used with a sealing gasket; the sealing gasket is used with a sealing shell; the groove is used with a limiting block; and the limiting block is used with a rotating column. This achieves a sealed connection of the transmission pipeline. The design of the sealing gasket and sealing shell ensures a high degree of sealing at the connection point of the transmission pipeline. When the sealing gasket is compressed by the protrusion, the compressed sealing shell inside rebounds, pressing the sealing gasket tightly against the protrusion. This effectively prevents leakage of liquid or gas during transmission. This is crucial for maintaining stable pressure inside the drainage device and preventing the entry of external contaminants, helping to ensure drainage effectiveness and reduce the risk of infection. Attached Figure Description

[0034] Figure 1 This is a three-dimensional schematic diagram of an improved extra-membrane insertion suction cup drainage device proposed in this utility model;

[0035] Figure 2 This is a schematic diagram of the sealing ring of an improved extra-membrane insertion suction cup drainage device proposed in this utility model;

[0036] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0037] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0038] Legend:

[0039] 1. Drainage tube; 2. Docking mechanism; 201. Sliding column; 202. Fixing ring; 203. Protrusion; 204. Slot; 205. Rotating column; 206. Limiting block; 207. Sealing assembly; 2071. Sealing shell; 2072. Spring 1; 2073. Sealing gasket; 208. Rotating ring; 3. Connecting mechanism; 301. Sliding rod; 302. Limiting plate; 303. Spring 2; 304. Limiting disc; 305. Drainage plug; 4. Suction cup mechanism; 401. Fixing rod; 402. Fixing suction cup; 403. Sealing ring; 5. Inner tube of plug. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] Reference Figures 2 to 4 This utility model provides an embodiment of an improved extramural suction cup drainage device, including a drainage tube 1. The drainage tube 1 is the core liquid transmission channel of the entire device. Its diameter is scientifically designed to efficiently guide the flow of liquid, ensure smooth drainage, and effectively collect wound exudate. One end of the drainage tube 1 is fixedly connected to a docking mechanism 2, which is used to connect with external drainage equipment or other auxiliary devices. Through a tight connection, the liquid can be stably transmitted from the drainage tube 1 to the subsequent treatment equipment, avoiding leakage. The outside of the drainage tube 1 is fixedly connected to a connecting mechanism 3, which builds a connecting bridge between the drainage tube 1 and the parts. Its structure is stable and ensures that it will not easily loosen during use, maintaining the integrity of the entire device.

[0042] The connecting mechanism 3 has a suction cup mechanism 4 that slides inside. The suction cup mechanism 4 can be flexibly adjusted in position through the sliding connection with the connecting mechanism 3 so as to accurately adhere to the patient's drainage site, thereby improving the targeting and effectiveness of drainage. The drainage tube 1 has a plug inner tube 5 that is fixedly connected inside. The plug inner tube 5 further enhances the stability of the internal liquid transmission of the drainage tube 1, prevents the internal structure from deforming under pressure, and ensures that the drainage work continues stably. The connecting mechanism 3 includes a drainage plug 305, which is a key component in the connecting mechanism 3 that directly docks with the suction cup mechanism 4. It provides a suitable interface for the connection between the two, ensuring a tight connection and convenient operation.

[0043] The drainage plug 305 has multiple sliding rods 301 internally connected. These sliding rods 301 can slide flexibly inside the drainage plug 305. When connected to the suction cup mechanism 4, they can be adjusted according to the actual situation to enhance the reliability of the connection. One end of each sliding rod 301 is fixedly connected to a limiting plate 302. Under the action of the sliding rod 301, the limiting plate 302 can effectively control the position and force during the connection process. When connected to the suction cup mechanism 4, it plays a key role in positioning and fastening. A second spring 303 is fixedly connected to the inner side of the limiting plate 302. The second spring 303 provides a rebound force to the limiting plate 302. After the connection is completed, the limiting plate 302 is tightly attached to the relevant parts of the suction cup mechanism 4 to ensure a firm connection and prevent accidental loosening.

[0044] A limiting plate 304 is fixedly connected to the end of the sliding rod 301 away from the limiting plate 302. The limiting plate 304 can prevent the sliding rod 301 from sliding excessively, ensuring that its sliding within the drain plug 305 is always within a controllable range, maintaining the normal working state of the connection mechanism 3. A sealing component 207 is fixedly connected inside the docking mechanism 2. The sealing component 207 is inside the docking mechanism 2, which can effectively prevent liquid or gas from leaking from the docking point, ensuring the sealing performance of the docking mechanism 2 when connected to external equipment, and improving the working efficiency of the entire drain device.

[0045] Specifically, the drainage tube 1 is the core liquid transmission channel with a reasonable diameter design, which can efficiently collect wound exudate. The docking mechanism 2 is used to connect external equipment to ensure stable liquid transmission and prevent leakage. The connecting mechanism 3 is the bridge connecting the drainage tube 1 and the suction cup mechanism 4. It has a stable structure. Its key component, the drainage plug 305, docks with the suction cup mechanism 4. Through the internal sliding rod 301, the limiting plate 302, and the spring 303, a tight and reliable connection is achieved. The limiting plate 304 ensures controllable sliding. The suction cup mechanism 4 can be flexibly adjusted in position to accurately adsorb the drainage site. The inner tube 5 of the plug enhances the internal stability of the drainage tube 1. The sealing component 207 is installed in the docking mechanism 2 to improve the overall sealing of the device and ensure efficient and stable operation of the drainage work.

[0046] The sealing assembly 207 includes a sealing shell 2071, which serves as the main support structure of the sealing assembly 207. Its shape is adapted to the interior of the docking mechanism 2 and can be tightly fixed inside the docking mechanism 2, providing a stable installation base for the internal sealing components and ensuring that the sealing work is carried out in an orderly manner. The outer side of the sealing shell 2071 is fixedly connected to the interior of the docking mechanism 2. This fixing method allows the sealing shell 2071 to be tightly integrated with the docking mechanism 2. When the docking mechanism 2 is connected to external equipment, it can effectively prevent liquid or gas from leaking from the outside of the connection between the two, ensuring the sealing performance of the entire connection part.

[0047] Multiple springs 2072 are fixedly connected inside the sealing shell 2071. The multiple springs 2072 are evenly distributed inside the sealing shell 2071 to provide continuous and stable elastic force for the sealing gasket 2073, so that it can always maintain a tight fit to the sealing part under different pressure environments, thereby improving the sealing effect. The other end of the spring 2072 is fixedly connected to the sealing gasket 2073. Under the elastic force of the spring 2072, the sealing gasket 2073 can flexibly adapt to the slight deformation when the docking mechanism 2 is connected to the external equipment, tightly fill the connection gap, effectively prevent liquid or gas from leaking through the internal gap of the connection part, and greatly improve the sealing performance.

[0048] The outer side of the sealing gasket 2073 is slidably connected to the inside of the sealing housing 2071. The sealing gasket 2073 can slide smoothly inside the sealing housing 2071. When the docking mechanism 2 is connected to the external equipment, it can automatically adjust its position according to the pressure and position changes during the connection, always maintaining the best sealing state and ensuring that the sealing assembly 207 performs well in sealing.

[0049] Specifically, the sealing shell 2071 is adapted to the interior of the connection mechanism 2 and is tightly fixed, providing an installation base and preventing leakage from the outside of the connection. Multiple springs 2072 inside are evenly distributed to provide stable elasticity for the sealing gasket 2073, making it fit tightly against the sealing part. Under the action of elasticity, the sealing gasket 2073 fills the gap and prevents internal leakage. The sealing gasket 2073 can slide inside the sealing shell 2071 and can automatically adjust according to the pressure and position changes during connection to maintain the best sealing state and ensure that the sealing assembly 207 performs well.

[0050] Reference Figures 1 to 3 The docking mechanism 2 includes a sliding column 201, which provides a flexible structural foundation for the docking mechanism 2. It can slide within a certain range to facilitate adjustment of the connection position with the parts, so as to achieve precise docking and improve docking efficiency. A fixing ring 202 is fixedly connected inside the sliding column 201. The fixing ring 202 plays a role in stabilizing the structure inside the sliding column 201, ensuring that the connected parts are fixed in position, avoiding shaking or displacement during docking, and ensuring the stability of docking.

[0051] The front end of the fixed ring 202 is fixedly connected to a protrusion 203. The protrusion 203 can move with the fixed ring 202. During the docking process, it can precisely cooperate with the sealing gasket 2073 to achieve the squeezing operation of the sealing gasket 2073 and enhance the sealing effect. The end of the protrusion 203 away from the fixed ring 202 is slidably connected to the outside of the sealing gasket 2073. This sliding connection method allows the protrusion 203 to act smoothly on the sealing gasket 2073 when it moves, causing the sealing gasket 2073 to deform and tightly fit the connection part, effectively preventing liquid or gas leakage. The sliding column 201 is slidably connected to a rotating column 205. The rotating column 205 can slide and rotate inside the sliding column 201. During the docking process, its sliding can achieve preliminary position adjustment, and its rotation can complete the further locking with the sliding column 201, making the docking more secure.

[0052] A rotating ring 208 is fixedly connected to the front end of the rotating column 205. The rotating ring 208 provides support and a stable rotation track for the rotation of the rotating column 205, allowing the rotating column 205 to rotate smoothly inside the drainage tube 1, ensuring the smooth progress of the docking operation. The outer side of the rotating ring 208 is rotatably connected to the inside of the drainage tube 1. This connection method ensures that the rotating column 205 and the drainage tube 1 can maintain a good relative rotational relationship. During the docking process, the components can work together to achieve stable and effective docking.

[0053] Multiple limiting blocks 206 are fixedly connected to the outer side of the rotating column 205. When the rotating column 205 rotates, the multiple limiting blocks 206 can accurately engage with the slots 204 inside the sliding column 201, playing a locking and fixing role, preventing relative displacement between the rotating column 205 and the sliding column 201 after docking. Multiple slots 204 are opened inside the sliding column 201, and the slots 204 are adapted to the limiting blocks 206. When the limiting blocks 206 engage with the slots 204, the rotating column 205 and the sliding column 201 can be tightly connected together, ensuring the overall stability and reliability of the docking mechanism 2. The outer side of the sealing shell 2071 is fixedly connected to the inside of the rotating column 205. This connection method allows the sealing assembly 207 to work in coordination with the movement of the rotating column 205. During the docking process, it can ensure that the sealing effect is not affected by rotation and sliding operations, and always maintain good sealing performance.

[0054] Specifically, the sliding column 201 facilitates adjustment of the connection position, the fixed ring 202 stabilizes the structure, the protrusion 203 enhances the seal, the rotating column 205 can slide and rotate, the rotating ring 208 provides rotational support, the limiting block 206 cooperates with the slot 204 to lock, and the sealing shell 2071 is connected to the rotating column 205, so that the sealing assembly 207 works together to ensure a firm connection and good sealing during the docking process, and to ensure the stability and reliability of the docking mechanism 2.

[0055] The suction cup mechanism 4 includes a fixed rod 401, which serves as a support component for the suction cup mechanism 4, providing a stable structural foundation for the entire mechanism and ensuring that the suction cup mechanism 4 can remain stable and accurately perform its function during use. The inner side of the limiting plate 302 is slidably connected to the outer side of the fixed rod 401. This sliding connection allows the limiting plate 302 to move flexibly on the outer side of the fixed rod 401. During the connection process, the position can be adjusted according to the actual situation to achieve a tight connection.

[0056] A fixed suction cup 402 is fixedly connected to the bottom of the fixed rod 401. The fixed suction cup 402 can be firmly adsorbed on the part that needs drainage, ensuring that the suction cup mechanism 4 is stably fixed in the target position, providing reliable support for subsequent drainage work. Two sealing rings 403 are fixedly connected to the outside of the fixed rod 401. The two sealing rings 403 can enhance the sealing of the connection between the fixed rod 401 and the surrounding components, effectively preventing liquid or gas leakage, and ensuring the efficiency and safety of the drainage process. The outside of the sealing ring 403 is slidably connected to the outside of the limiting plate 302. This connection method allows the limiting plate 302 to fit tightly with the sealing ring 403 during the sliding process, further enhancing the sealing and stability of the connection, and ensuring the normal operation of the entire suction cup mechanism 4.

[0057] Specifically, the fixed rod 401 provides structural support to ensure stable operation of the mechanism; the limiting plate 302 can move flexibly to facilitate tight connection; the fixed suction cup 402 is firmly attached to the drainage part to provide reliable support; the two sealing rings 403 enhance the connection sealing and prevent leakage; and the sealing rings 403 cooperate with the limiting plate 302 to further improve the sealing and stability of the connection and ensure the normal operation of the suction cup mechanism 4.

[0058] Working principle: When staff need to use drainage tube 1 on a patient, they can first connect the drainage plug 305 to the fixing rod 401. At this time, the outer side of the fixing rod 401 can be slid into the inside of the drainage plug 305. The inside of the drainage plug 305 is provided with multiple sliding rods 301, and the inner end of the sliding rod 301 is fixed with a limiting plate 302. When the fixing rod 401 slides into the inside of the drainage plug 305, it will press the multiple limiting plates 302 outward. When the limiting plate 302 slides to the middle of the two sealing rings 403 connected to the outside of the fixing rod 401, the fixing rod 401 can be released. The spring 303 connected to the back of the limiting plate 302 will provide a rebound force to connect the limiting plate 302 and the fixing rod 401 more tightly.

[0059] After connecting the fixed suction cup 402, the sliding post 201 can be removed from the outside of the rotating post 205. Then, the outside of the transmission pipe is fixedly connected to the inside of the sliding post 201. After connection, the sliding post 201 can be slid to the outside of the rotating post 205. During the sliding process, the protrusion 203 connected inside the sliding post 201 will press the sealing gasket 2073 inside the rotating post 205 inward. When the sliding post 201 can no longer slide on the outside of the rotating post 205, the rotating post 205 can be rotated, causing the outer connection to be pressed inward. The limiting block 206 is moved together, causing the limiting block 206 to slide into the slot 204 inside the sliding post 201. When the sliding post 201 is released, the multiple compressed springs 2072 connected inside the sealing gasket 2073 will rebound, thereby pushing the sealing gasket 2073 against the protrusion 203, causing the protrusion 203 to drive the sliding post 201 to slide outward. However, because of the connection between the limiting block 206 and the slot 204, the sliding post 201 will not fall off, and the limiting block 206 and the slot 204 will be connected more tightly.

[0060] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An improved film-outset patch-dialysis device comprising a dialysis tube (1), characterized in that: One end of the drainage tube (1) is fixedly connected to a docking mechanism (2), the outside of the drainage tube (1) is fixedly connected to a connecting mechanism (3), the inside of the connecting mechanism (3) is slidably connected to a suction cup mechanism (4), and the inside of the drainage tube (1) is fixedly connected to a plug inner tube (5). The connecting mechanism (3) includes a drain plug (305), and a plurality of sliding rods (301) are slidably connected inside the drain plug (305). A limiting plate (302) is fixedly connected to one end of the sliding rod (301), and a spring (303) is fixedly connected to the inner side of the limiting plate (302). A limiting disk (304) is fixedly connected to the end of the sliding rod (301) away from the limiting plate (302). A sealing component (207) is fixedly connected inside the docking mechanism (2).

2. The improved extramural insertion suction cup drainage device according to claim 1, characterized in that: The sealing assembly (207) includes a sealing shell (2071), the outer side of which is fixedly connected to the inside of the docking mechanism (2), and a plurality of springs (2072) are fixedly connected inside the sealing shell (2071), with a sealing gasket (2073) fixedly connected to the other end of the springs (2072).

3. An improved extra-membrane insertion suction cup drainage device according to claim 2, characterized in that: The docking mechanism (2) includes a sliding column (201), a rotating column (205) is slidably connected inside the sliding column (201), a plurality of limiting blocks (206) are fixedly connected to the outside of the rotating column (205), a plurality of slots (204) are opened inside the sliding column (201), and the outside of the sealing shell (2071) is fixedly connected to the inside of the rotating column (205).

4. The improved extramural insertion suction cup drainage device according to claim 1, characterized in that: The suction cup mechanism (4) includes a fixed rod (401), a fixed suction cup (402) is fixedly connected to the bottom of the fixed rod (401), and two sealing rings (403) are fixedly connected to the outside of the fixed rod (401).

5. An improved extramural insertion suction cup drainage device according to claim 3, characterized in that: The sliding column (201) is fixedly connected to a fixing ring (202), and the front end of the fixing ring (202) is fixedly connected to a protrusion (203).

6. An improved extramural insertion suction cup drainage device according to claim 5, characterized in that: The end of the protrusion (203) away from the fixing ring (202) is slidably connected to the outside of the sealing gasket (2073), and the outside of the sealing gasket (2073) is slidably connected to the inside of the sealing shell (2071).

7. An improved extramural suction cup drainage device according to claim 4, characterized in that: The outer side of the sealing ring (403) is slidably connected to the outer side of the limiting plate (302), and the inner side of the limiting plate (302) is slidably connected to the outer side of the fixing rod (401).

8. An improved extramural insertion suction cup drainage device according to claim 3, characterized in that: The front end of the rotating column (205) is fixedly connected to a rotating ring (208), and the outer side of the rotating ring (208) is rotatably connected to the inside of the drainage tube (1).

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