Anti-permeation drainage tube

Abstract

The invention discloses a permeation drainage tube which comprises a drainage tube body, a guide tube, a buffer disc and an anti-seepage mechanism. An anti-seepage mechanism is arranged at the tail end of the drainage tube and connected with the catheter, and the tail end of the drainage tube is fixed to the periphery of a wound through the anti-seepage mechanism. A buffer disc is arranged in the middle of the catheter to prevent the drainage bag from pulling the drainage tube due to the movement of a patient; the anti-seepage mechanism comprises a connector, a connecting sleeve, a rotating end socket, a fixed connector and an adsorption layer. The upper end and the lower end of the rotating end socket are rotationally connected with the fixed connector and the connecting sleeve correspondingly, and a push plate attaching adsorption layer is arranged in the rotating end socket. A threaded sleeve threaded connection joint is arranged on the outer wall of the connecting sleeve; the connector is a conical connector and is in sealed connection with the guide pipe, and a mounting plate mounting adsorption layer extending into the connecting sleeve and the rotating end socket is arranged in the connector; a connecting rod is arranged in the fixed joint and connected with the tail end of the drainage tube.

Description

Technical Field

[0001] The invention relates to the technical field of drainage instruments for tumor internal medicine, and in particular to an anti-permeability drainage tube. Background Art

[0002] Oncology drainage is an important part of tumor treatment and plays a very important role in the treatment of tumor-induced effusion or postoperative exudate. Its main functions include:

[0003] Drainage tubes are the main medical devices for drainage in oncology. By implanting drainage tubes into the abdominal cavity or subcutaneously, the pus and fluid inside the tumor are slowly sucked into the drainage bag for collection. Although there are many types of drainage tubes in the prior art, since oncology drainage usually takes a long time, it means that the drainage tubes must be fixed in the human body for a long time to suck out the pus and fluid in the human body. As a result, there are many common problems with the drainage tubes:

[0004] 1. The drainage tube is fixed on the human body for a long time to absorb the accumulated fluid and pus in the body. During the continuous drainage process, the patient's movement is likely to pull the drainage bag and drag the drainage tube, resulting in poor drainage, reflux of drainage fluid, irritation or compression of the surrounding skin and tissues, causing the patient to feel pain or discomfort, leading to bleeding and infection of the puncture wound, and other problems;

[0005] 2. The drainage tube is a continuous process, and the wound and the outer wall of the drainage tube are not completely in contact. Therefore, during the drainage process, accumulated fluid or pus will seep out of the wound and flow to the skin around the wound, contaminating the patient with foreign bodies and causing skin allergies and infections around the wound. Summary of the invention

[0006] In order to solve the drawbacks of the prior art, the present invention is achieved through the following technical solutions:

[0007] An anti-seepage drainage tube, comprising: a drainage tube, a catheter, a buffer plate, and an anti-seepage mechanism;

[0008] The end of the drainage tube is provided with an anti-seepage mechanism to connect the catheter, and the end of the drainage tube is fixed to the periphery of the wound through the anti-seepage mechanism; the end of the catheter is provided with a drainage bag to receive the accumulated fluid, and a buffer plate is provided in the middle of the catheter to prevent the drainage bag from being pulled by the patient's movement and the drainage tube;

[0009] The anti-seepage mechanism comprises a joint, a connecting sleeve, a rotating head, a fixed joint, and an adsorption layer; the upper and lower ends of the rotating head are respectively connected to the fixed joint and the connecting sleeve, and a push plate is arranged inside the rotating head to fit the adsorption layer; a joint sealing connection conduit is arranged at the lower end of the connecting sleeve; the pushing plate is driven to rotate and compress the adsorption layer by rotating the rotating head, so that the adsorbed seepage inside the adsorption layer is squeezed out, and the adsorption capacity of the adsorption layer is maintained;

[0010] Furthermore, a connecting rod is provided inside the fixed joint to connect the end of the drainage tube, and an adhesive plate is provided on the fixed joint to seal the periphery of the wound, and a connecting plate is provided on the outer wall of the rotating joint to facilitate the adhesive tape to strengthen the fixation;

[0011] Furthermore, a threaded connection joint is provided on the outer wall of the connection sleeve;

[0012] Furthermore, the joint is a conical joint, the joint seals and connects the conduit, and an installation plate is provided inside the joint to install the adsorption layer, which extends into the connecting sleeve and the rotating head;

[0013] Furthermore, a circular groove is provided inside the buffer tray, and a torsion spring is provided in the middle of the circular groove, an elastic element is provided at the lower end of the buffer tray to connect with the fixing sleeve, and fixing buckles are symmetrically provided on the buffer tray to connect with the patient's clothes;

[0014] Furthermore, the outer periphery of the torsion spring is coiled around the catheter; one end of the catheter extends out of the buffer disk and is movably connected to the drainage bag, and is fixedly connected to the fixing sleeve in the middle of the catheter; the other end of the catheter extends out of the buffer disk to connect the joint, and when the drainage bag is pulled by the patient's movement, the catheter coiled and connected in the buffer disk fixed by the fixing buckle will be pulled to extend a certain buffer distance, and the catheter moving within the buffer distance will compress the torsion spring and stretch the elastic element to resist the pulling of the catheter by the drainage bag;

[0015] The buffer distance range of the catheter extension is 5 to 10 cm;

[0016] Furthermore, the adsorption layer is an annular adsorption layer made of adsorption material;

[0017] Furthermore, a push plate is provided inside the rotating head, and a handle for facilitating rotation is provided outside; an annular plate rotating connection sleeve and a fixed joint are symmetrically provided at the upper and lower ends of the rotating head; in order to ensure the sealing performance of the anti-seepage mechanism, a sealing layer is attached to the annular plate on the rotating head;

[0018] Furthermore, the fixing buckle is a paper clip that can quickly and stably fix the buffer tray on the patient's clothing.

[0019] The beneficial effects of the present invention are:

[0020] The present invention discloses an anti-seepage drainage tube, comprising: a drainage tube, a catheter, a buffer plate, and an anti-seepage mechanism; the end of the drainage tube is provided with an anti-seepage mechanism to connect with the catheter, and the end of the drainage tube is fixed to the periphery of the wound through the anti-seepage mechanism; the end of the catheter is provided with a drainage bag to receive the accumulated fluid, and the middle of the catheter is provided with a buffer plate to prevent the drainage bag from being pulled by the patient's movement and the drainage tube;

[0021] An anti-seepage structure is provided to connect the drainage tube and the drainage tube, and an adsorption layer with certain adsorption properties is provided inside the anti-seepage mechanism to adsorb the exudate, thereby ensuring the cleanliness around the wound. In the drainage process, the push plate can be driven to pressurize the adsorption layer for adsorbing the exudate by rotating the rotary head, so that the exudate is squeezed out of the adsorption layer and discharged from the catheter into the drainage bag along the anti-seepage mechanism, thereby ensuring the adsorption capacity of the adsorption layer. The adsorption layer can be quickly replaced by disassembling the joint and the sealing layer can be pressed by rotating the rotary head to maintain the adsorption capacity of the adsorption layer. The fine adsorption layer can be quickly replaced by disassembling the joint and the adsorption layer can be pressed by rotating the rotary head to maintain the adsorption capacity of the adsorption layer. The replaceable adsorption layer can keep the area around the wound clean and tidy anytime and anywhere, avoiding the spillage of exudate, contamination of foreign matter, irritation of the skin, and causing symptoms such as allergies and infections; and a fixing rod is arranged inside the fixed joint at the upper end of the anti-seepage mechanism to connect the end of the drainage tube, and an adhesive layer is arranged at the upper end of the fixed joint to bond and fix the fixed joint connected to the end of the drainage tube to the skin around the wound; and a connecting plate for increasing the bonding area of ​​the medical tape is arranged on the outer wall of the fixed joint to ensure that the secondary fixation of the medical tape to the fixed joint through the connecting plate is more stable, thereby ensuring the stability of the fixation of the end of the drainage tube;

[0022] While the fixed joint ensures the fixed stability of the end of the drainage tube, a buffer disk is arranged in the middle of the catheter, a torsion spring is arranged inside the buffer disk, the outer periphery of the torsion spring is coiled and connected to the catheter, and a fixed sleeve is arranged in the middle of the catheter close to the drainage bag side, an elastic element is arranged on the fixed sleeve to connect the buffer disk, and after the buffer disk is fixed to the patient's clothes by the fixing buckle, when the drainage bag moves with the patient to pull the catheter, the catheter coiled around the outer periphery of the torsion spring will shrink and compress the torsion spring, ensuring that the catheter has a certain buffer distance, and when the catheter moves with the drainage bag within the buffer distance, the elastic element will be stretched, and the compressed torsion spring and the stretched elastic element will continue to move the catheter. The continuous extension provides greater impedance to resist pulling movement. When the buffer distance is exceeded, the catheter is coiled and tightened to the limit position and can no longer be extended. In this process, due to the fixation of the buffer tray, the catheter and the drainage tube on the upper part of the buffer tray have little effect. Therefore, in the present invention, the torsion spring, the catheter and the elastic element in the buffer tray work together to buffer the movement of the drainage bag with the patient, thereby solving the problem that the drainage tube is pulled by the catheter with the movement of the patient, dragging the drainage tube, damaging the wound, causing poor drainage, reflux of drainage fluid, stimulation or compression of the surrounding skin and tissues, causing the patient to feel pain or discomfort, and causing bleeding and infection of the puncture wound. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for describing the embodiment are briefly introduced below.

[0024] Figure 1 It is a schematic diagram of the overall structure of an anti-permeability drainage tube;

[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of an anti-seepage drainage tube;

[0026] Figure 3 This is a partial enlarged structural diagram of an anti-seepage drainage tube. Figure 1 ;

[0027] Figure 4 This is a partial enlarged structural diagram of an anti-seepage drainage tube. Figure 2 ;

[0028] Figure 5 It is a schematic diagram of a partial cross-sectional structure of an anti-seepage drainage tube;

[0029] Figure 6 It is a schematic diagram of the fixed joint structure of an anti-permeation drainage tube;

[0030] Figure 7 It is a schematic diagram of the connecting sleeve structure of an anti-permeation drainage tube;

[0031] Figure 8 It is a schematic diagram of the joint structure of an anti-permeation drainage tube;

[0032] Fig. 9 It is a schematic diagram of the structure of an adsorption layer of an anti-permeation drainage tube;

[0033] Fig.10 The present invention is a structural schematic diagram of a rotating head of an anti-seepage drainage pipe.

[0034] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0035] 1-drainage bag, 2-catheter, 201-fixed sleeve, 2011-elastic element, 3-buffer disk, 301-torsion spring, 302-fixed buckle, 4-anti-seepage mechanism, 401-joint, 40101-mounting plate, 4011-adsorption layer, 402-connecting sleeve, 4021-screw sleeve, 403-rotating head, 404-fixed joint, 4041-adhesive plate, 4042-conical sleeve, 4043-connecting plate, 5-drainage tube. DETAILED DESCRIPTION

[0036] In order to solve the problems existing in the drainage tube of the prior art, the present invention discloses an anti-seepage drainage tube, comprising: a drainage tube, a catheter, a buffer plate, and an anti-seepage mechanism;

[0037] The end of the drainage tube is provided with an anti-seepage mechanism to connect the catheter, and the end of the drainage tube is fixed to the periphery of the wound through the anti-seepage mechanism; the end of the catheter is provided with a drainage bag to receive the accumulated fluid, and a buffer plate is provided in the middle of the catheter to prevent the drainage bag from being pulled by the patient's movement and the drainage tube;

[0038] The anti-seepage mechanism comprises a joint, a connecting sleeve, a rotating head, a fixed joint, and an adsorption layer; the upper and lower ends of the rotating head are respectively rotatably connected to the fixed joint and the connecting sleeve, and a push plate is arranged inside the rotating head to fit the adsorption layer;

[0039] The outer wall of the connecting sleeve is provided with a screw sleeve threaded connecting joint; the joint is a conical joint, the joint is sealed to connect the catheter, and an installation plate is provided inside the joint to install an adsorption layer extending into the connecting sleeve and the inside of the rotating head, and the push plate is driven by rotating the rotating head to compress the adsorption layer for adsorbing the exudate, and the exudate is discharged into the conical joint along the catheter and into the drainage bag, so as to maintain the adsorption of the adsorption layer;

[0040] A connecting rod is arranged inside the fixed joint to connect the end of the drainage tube, and an adhesive plate is arranged on the fixed joint to seal the periphery of the wound, and a connecting plate array is arranged on the outer wall of the rotating joint to facilitate the adhesive tape to strengthen the fixation.

[0041] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0042] Example 1

[0043] like Figure 5 The figure shows a schematic diagram of a partial cross-sectional structure of the present invention. In the present invention, in order to solve the problem that the end of the drainage tube protrudes from the wound, it is difficult to fix it on the human skin, it is easy to get loose, and after getting loose, it is easy to be pulled by the human body movement to cause the wound to be damaged; a fixed joint and a buffer plate are provided;

[0044] like Figure 6 The figure shows a schematic diagram of the structure of the fixing joint of the present invention; a connecting rod is arranged inside the fixing joint to connect the end of the drainage tube, and an adhesive plate is arranged on the fixing joint to fix the end of the drainage tube on the skin around the wound, and the adhesive plate is sealed around the wound, which can not only ensure the aseptic sealing of the wound, but also isolate the bathing liquid and normal sweat of the human body through the adhesive layer attached to the wound, so as to avoid inflammation and infection of the wound;

[0045] In this embodiment, a connection plate is provided on the outer wall array of the rotating joint to facilitate the adhesive tape to strengthen the fixation. By adhering the middle of the tape to the connection plate and adhering the two ends of the tape to the human skin, the area of ​​the adhesive tape fixing joint is increased through the connection plate, so as to prevent the tape from slipping off easily and losing the fixing function due to the small adhesive tape area during the adhesive process;

[0046] In this embodiment, the end of the drainage tube is doubly fixed by an adhesive layer and a connecting plate that can increase the contact area, thereby enhancing the stability of the fixation of the end of the drainage tube and reducing the risk of damage to the wound caused by the drainage bag pulling the drainage tube due to the patient's movement.

[0047] Example 2

[0048] Although the present invention has provided a fixed joint to double-fix the end of the drainage tube in order to reduce the risk of the drainage bag moving due to human body movement, thereby pulling the drainage tube and causing wound damage, the problem of the catheter at the end of the drainage tube pulling the drainage tube due to the movement of the drainage bag has not been solved. In order to solve this technical problem, the inventor mainly considers two aspects: the normal displacement movement of the drainage bag and the fact that the displacement movement does not pull the catheter and affect the drainage tube;

[0049] Therefore, in order to ensure that the displacement of the drainage bag is buffered under the premise of the inevitable displacement of the drainage bag, the catheter can be stretched to a certain extent to buffer the displacement of the drainage bag and reduce the impact on the drainage tube in the wound. In this embodiment, a buffer tray is provided; a circular groove is provided inside the buffer tray, and a torsion spring is provided in the middle of the circular groove, an elastic element is provided at the lower end of the buffer tray to connect with the fixing sleeve, and fixing buckles are symmetrically provided on the buffer tray to connect with the patient's clothes;

[0050] In this embodiment, the outer periphery of the torsion spring is coiled around the catheter; one end of the catheter extends out of the buffer disk to be movably connected to the drainage bag, and is fixedly connected to the fixing sleeve in the middle of the catheter; the other end of the catheter extends out of the buffer disk to connect the joint to guide the exudate connected to the anti-seepage mechanism. When the drainage bag is pulled by the patient's movement, the catheter coiled and connected in the buffer disk fixed by the fixing buckle will be pulled to extend a certain buffer distance. The catheter moving within the buffer distance will compress the torsion spring and stretch the elastic element to resist the pulling of the catheter by the drainage bag;

[0051] The buffer distance of the catheter extension ranges from 5 to 10 cm, and when the buffer distance is exceeded, that is, when the catheter is continuously pulled and the wound is compressed, the compressed torsion spring and the stretched elastic element will resist the movement of the catheter with the pulling of the drainage bag, thereby avoiding damage to the wound;

[0052] In this embodiment, by providing a buffer disk, the catheter wound around the outer periphery of the torsion spring on the buffer disk has a certain buffer distance, ensuring that when the drainage bag is displaced during human body movement, the catheter can have a certain extension buffer distance, and will not directly pull the catheter, thereby dragging the drainage tube to cause damage to the wound;

[0053] In the present embodiment, the buffer plate provided in the present embodiment ensures that the catheter connected to the drainage bag has a certain buffer distance, and ensures that when the drainage bag shifts and moves during human body movement, the catheter can have a certain extension buffer distance, and will not directly pull the catheter, thereby dragging the drainage tube to cause damage to the wound, thereby reducing the influence of the displacement movement of the drainage bag on the traction of the drainage tube, and combined with the double fixation of the end of the drainage tube by the fixed joint in Example 1, the stability of the end of the drainage tube is ensured, and it is not easily affected by the displacement and traction of the drainage bag. The local buffering of the displacement of the drainage bag is combined with the enhanced fixation of the end of the drainage tube to ensure the stability and safety of the drainage tube, and solves the problem in the prior art that in the process of continuous drainage, the patient's movement is easy to pull the drainage bag and drag the drainage tube, resulting in poor drainage, reflux of drainage fluid, stimulation or compression of surrounding skin and tissues, causing the patient to feel pain or discomfort, and causing bleeding and infection of the puncture wound.

[0054] Example 3

[0055] like Figure 3 and Figure 4 The following are partial enlarged schematic diagrams of the cross-sectional structure of the present invention: Figure 1 And the local enlarged structure diagram Figure 2 In the present invention, an anti-seepage mechanism is provided, and the anti-seepage mechanism includes: a joint, a connecting sleeve, a rotating head, a fixed joint, and an adsorption layer; the upper and lower ends of the rotating head are respectively rotatably connected to the fixed joint and the connecting sleeve, and a push plate is provided inside the rotating head to fit the adsorption layer;

[0056] The outer wall of the connecting sleeve is provided with a screw sleeve threaded connecting joint; the joint is a conical joint, the joint is sealed to connect the catheter, and an installation plate is provided inside the joint to install an adsorption layer extending into the connecting sleeve and the inside of the rotating head, and the push plate is driven by rotating the rotating head to compress the adsorption layer for adsorbing the exudate, and the exudate is discharged into the conical joint along the catheter and into the drainage bag, so as to maintain the adsorption of the adsorption layer;

[0057] A connecting rod is arranged inside the fixed joint to connect the end of the drainage tube, and an adhesive plate is arranged on the fixed joint to seal the periphery of the wound, and a connecting plate is arranged on the outer wall of the rotating joint to facilitate the adhesive tape to strengthen the fixation;

[0058] In this embodiment, the adsorption layer is a ring-shaped adsorption layer made of an adsorption material, and specific materials such as sponge, medical adsorption cotton, etc. can be selected;

[0059] In this embodiment, a push plate is provided inside the rotating head, and a handle for easy rotation is provided outside; an annular plate rotating connection sleeve and a fixed joint are symmetrically provided at the upper and lower ends of the rotating head; in order to ensure the sealing performance of the anti-seepage mechanism, a sealing layer is attached to the annular plate on the rotating head;

[0060] In this embodiment, an anti-seepage structure is provided to connect the drainage tube and the drainage tube, and an adsorption layer with a certain adsorption property is provided inside the anti-seepage mechanism to adsorb the exudate to ensure the cleanliness of the area around the wound. In the drainage process, the push plate can be driven to pressurize the adsorption layer for adsorbing the exudate by rotating the rotating head, so that the exudate is squeezed out of the adsorption layer and discharged into the drainage bag from the catheter along the anti-seepage mechanism to ensure the adsorption capacity of the adsorption layer. The adsorption layer can be quickly replaced by disassembling the sealing layer after the joint is removed. The adsorption layer is pressed by rotating the head to maintain the adsorption capacity of the adsorption layer. The fine adsorption layer is a quickly replaceable adsorption layer, which can keep the area around the wound clean and tidy anytime and anywhere, avoid exudate overflow, foreign body contamination, skin irritation, and allergies, infections and other symptoms.

[0061] In summary, the present invention discloses an anti-seepage drainage tube, comprising: a drainage tube, a catheter, a buffer plate, and an anti-seepage mechanism; the end of the drainage tube is provided with an anti-seepage mechanism to connect the catheter, and the end of the drainage tube is fixed to the periphery of the wound through the anti-seepage mechanism; the end of the catheter is provided with a drainage bag to receive the accumulated fluid, and the middle of the catheter is provided with a buffer plate to prevent the drainage bag from being pulled by the patient's movement and the drainage tube;

[0062] An anti-seepage structure is provided to connect the drainage tube and the drainage tube, and an adsorption layer with certain adsorption properties is provided inside the anti-seepage mechanism to adsorb the exudate, thereby ensuring the cleanliness around the wound. In the drainage process, the push plate can be driven to pressurize the adsorption layer for adsorbing the exudate by rotating the rotary head, so that the exudate is squeezed out of the adsorption layer and discharged from the catheter into the drainage bag along the anti-seepage mechanism, thereby ensuring the adsorption capacity of the adsorption layer. The adsorption layer can be quickly replaced by disassembling the joint and the sealing layer can be pressed by rotating the rotary head to maintain the adsorption capacity of the adsorption layer. The fine adsorption layer can be quickly replaced by disassembling the joint and the adsorption layer can be pressed by rotating the rotary head to maintain the adsorption capacity of the adsorption layer. The replaceable adsorption layer can keep the area around the wound clean and tidy anytime and anywhere, avoiding the spillage of exudate, contamination of foreign matter, irritation of the skin, and causing symptoms such as allergies and infections; and a fixing rod is arranged inside the fixed joint at the upper end of the anti-seepage mechanism to connect the end of the drainage tube, and an adhesive layer is arranged at the upper end of the fixed joint to bond and fix the fixed joint connected to the end of the drainage tube to the skin around the wound; and a connecting plate for increasing the bonding area of ​​the medical tape is arranged on the outer wall of the fixed joint to ensure that the secondary fixation of the medical tape to the fixed joint through the connecting plate is more stable, thereby ensuring the stability of the fixation of the end of the drainage tube;

[0063] While the fixed joint ensures the fixed stability of the end of the drainage tube, a buffer disk is arranged in the middle of the catheter, a torsion spring is arranged inside the buffer disk, the outer periphery of the torsion spring is coiled and connected to the catheter, and a fixed sleeve is arranged in the middle of the catheter close to the drainage bag side, an elastic element is arranged on the fixed sleeve to connect the buffer disk, and after the buffer disk is fixed to the patient's clothes by the fixing buckle, when the drainage bag moves with the patient to pull the catheter, the catheter coiled around the outer periphery of the torsion spring will shrink and compress the torsion spring, ensuring that the catheter has a certain buffer distance, and when the catheter moves with the drainage bag within the buffer distance, the elastic element will be stretched, and the compressed torsion spring and the stretched elastic element will continue to move the catheter. The continuous extension provides greater impedance to resist pulling movement. When the buffer distance is exceeded, the catheter is coiled and tightened to the limit position and can no longer be extended. In this process, due to the fixation of the buffer tray, the catheter and the drainage tube on the upper part of the buffer tray have little effect. Therefore, in the present invention, the torsion spring, the catheter and the elastic element in the buffer tray work together to buffer the movement of the drainage bag with the patient, thereby solving the problem that the drainage tube is pulled by the catheter with the movement of the patient, dragging the drainage tube, damaging the wound, causing poor drainage, reflux of drainage fluid, stimulation or compression of the surrounding skin and tissues, causing the patient to feel pain or discomfort, and causing bleeding and infection of the puncture wound.

[0064] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only the specific implementation methods described.

Claims

1. A permeation drainage tube, characterized in that: include: Drainage tubes, catheters, buffer trays, and anti-seepage mechanisms; The end of the drainage tube is provided with an anti-seepage mechanism to connect the catheter, and the end of the drainage tube is fixed to the periphery of the wound through the anti-seepage mechanism; the end of the catheter is provided with a drainage bag to receive the accumulated fluid, and a buffer plate is provided in the middle of the catheter to prevent the drainage bag from being pulled by the patient's movement and the drainage tube; The anti-seepage mechanism comprises a joint, a connecting sleeve, a rotating head, a fixed joint, and an adsorption layer; the upper and lower ends of the rotating head are respectively rotatably connected to the fixed joint and the connecting sleeve, and a push plate is arranged inside the rotating head to fit the adsorption layer; The outer wall of the connecting sleeve is provided with a screw sleeve threaded connecting joint; the joint is a conical joint, the joint is sealed to connect the catheter, and an installation plate is provided inside the joint to install an adsorption layer extending into the connecting sleeve and the inside of the rotating head, and the push plate is driven by rotating the rotating head to compress the adsorption layer for adsorbing the exudate, and the exudate is discharged into the conical joint along the catheter and into the drainage bag, so as to maintain the adsorption of the adsorption layer; A connecting rod is arranged inside the fixed joint to connect the end of the drainage tube, and an adhesive plate is arranged on the fixed joint to seal the periphery of the wound, and a connecting plate array is arranged on the outer wall of the rotating joint to facilitate the adhesive tape to strengthen the fixation.

2. The permeate drainage tube according to claim 1, characterized in that: A circular groove is provided inside the buffer tray, and a torsion spring is arranged in the middle of the circular groove. An elastic element is arranged at the lower end of the buffer tray to connect with a fixing sleeve. Fixing buckles are symmetrically arranged on the buffer tray to connect with the patient's clothes.

3. The permeate drainage tube according to claim 1, characterized in that: The outer periphery of the torsion spring is coiled around the catheter; one end of the catheter extends out of the buffer disk and is movably connected to the drainage bag, and is fixedly connected to the fixing sleeve in the middle of the catheter; the other end of the catheter extends out of the buffer disk connecting joint, and when the drainage bag is pulled by the patient's movement, the catheter coiled and connected in the buffer disk fixed by the fixing buckle will be pulled to extend a certain buffer distance, and the catheter moving within the buffer distance will compress the torsion spring and stretch the elastic element to resist the pulling of the catheter by the drainage bag.

4. The permeate drainage tube according to claim 1, characterized in that: The buffer distance range of the catheter extension is 5 to 10 cm, and when the buffer distance is exceeded, that is, continuing to pull the catheter will pull and compress the wound, the compressed torsion spring and the stretched elastic element will resist the movement of the catheter with the pulling of the drainage bag to avoid damage to the wound.

5. The permeate drainage tube according to claim 1, characterized in that: The adsorption layer is an annular adsorption layer made of adsorption material.

6. The permeate drainage tube according to claim 1, characterized in that: A push plate is arranged inside the rotating head and a handle for easy rotation is arranged outside; an annular plate rotating connection sleeve and a fixed joint are symmetrically arranged at the upper and lower ends of the rotating head; in order to ensure the sealing performance of the anti-seepage mechanism, a sealing layer is attached to the annular plate on the rotating head.

7. The permeate drainage tube according to claim 1, characterized in that: The fixing buckle is a paper clip which can quickly and stably fix the buffer tray on the patient's clothing.

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