Puncture drainage device

Abstract

The utility model relates to the technical field of medical instruments, and provides a puncture drainage device, which comprises a drainage component, a drainage tube, a driving part and a drainage tube, the drainage tube is suitable for being inserted in an affected part, and the driving part is communicated with the drainage tube and is suitable for being far away from the affected part and providing drainage power for the drainage tube; the puncture assembly is detachably arranged on the drainage tube and is suitable for guiding the drainage tube to be inserted into an affected part; and the limiting assembly is arranged on the drainage tube and is suitable for connecting the drainage tube to an affected part in a limiting manner. By means of the arrangement, the puncture drainage device is provided with the limiting assembly, the limiting assembly is arranged on the drainage tube, medical staff can directly take and use the puncture drainage device or arrange instruments on the basis of the limiting assembly for auxiliary adjustment, and it is guaranteed that the drainage tube is effectively fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a puncture drainage device. Background Art

[0002] During the clinical treatment process, it is necessary to drain and export the accumulated fluid, blood, and pus in the superficial affected area of the patient.

[0003] The commonly used drainage method is to cut the affected area and place a drainage strip. Although drainage can be achieved, the wound surface is large and long-term dressing change is required. For some patients with superficial accumulated fluid and blood, such as the accumulated fluid under the skin flap after breast surgery, drainage is performed by the method of repeated aspiration and compression. Such a drainage method causes greater pain and burden to the patient, and the workload of medical staff is also high.

[0004] To improve the above problems, in the prior art, there is a fluid accumulation drainage device composed of a puncture needle, a drainage tube, a drainage bottle, and a negative pressure device. The puncture needle can be used to pierce the patient's skin, and the drainage tube can be inserted through the punctured incision and left in place.

[0005] However, in the actual use process, due to the lack of a fixing means for the drainage tube, medical staff often need to provide additional instruments such as gauze for auxiliary adjustment and fixation. Moreover, the fixing effect is often insufficient, and the drainage tube is likely to slip out, which not only affects the curative effect but also increases the pain and burden of the patient. Content of the Utility Model

[0006] The utility model provides a puncture drainage device to solve the problem of insufficient or ineffective fixation of the drainage tube, meet the clinical needs, and better serve the patients.

[0007] In a first aspect, a puncture drainage device includes: a drainage assembly, including a drainage tube and a driving member, the drainage tube is adapted to be inserted into the affected area, and the driving member is communicatively connected to the drainage tube and is adapted to move away from the affected area and provide drainage power to the drainage tube; a puncture assembly, detachably disposed on the drainage tube and adapted to guide the drainage tube to be inserted into the affected area; a limiting assembly, disposed on the drainage tube and adapted to limit and connect the drainage tube to the affected area.

[0008] Advantageous Effects:

[0009] By setting up the puncture assembly in cooperation with the drainage tube, it is convenient to puncture the affected area to form an incision for the drainage tube to enter. In cooperation with the driving member, puncture indwelling and driving drainage within the puncture range of the puncture assembly can be achieved. At the same time, a limiting assembly is provided on the drainage tube for limiting and connecting the drainage tube to the affected area. With such a setting, the puncture drainage device is equipped with a limiting assembly, and it has been set on the drainage tube. Medical staff can directly use it or set up instruments on the basis of the limiting assembly for auxiliary adjustment to ensure the effective fixation of the drainage tube, overcome the problems in the prior art that the drainage tube lacks fixation or the fixation effect is insufficient, increasing the pain and burden of patients, so as to meet the clinical needs and better serve patients.

[0010] In an optional implementation manner, the limiting assembly includes: an adjusting member, which internally houses the drainage tube and is detachably and limitedly connected to the drainage tube; an adhering member, which is connected and arranged on the adjusting member and is provided with a plurality of ventilation holes thereon, and the adhering member is suitable for being adhesively arranged on the affected area.

[0011] In an optional implementation manner, the adjusting member includes: a limiting cylinder, which is sleeved outside the drainage tube, and the outer wall of the end of the limiting cylinder away from the affected area is provided with a locking cooperation part and a locking limiting part, and the locking cooperation part is arranged along the axial direction of the limiting cylinder; an elastic member, which is arranged inside the limiting cylinder and is correspondingly arranged between the inner wall of the limiting cylinder and the outer wall of the drainage tube; a locking member, which is sleeved on the end of the limiting cylinder away from the affected area, and is provided with an abutting end thereon, the abutting end extends into the limiting cylinder, and the drainage tube is sleeved inside it. The locking member is movably connected with the locking cooperation part and is suitable for moving along the locking cooperation part under the action of an external force, so that the abutting end applies force to the elastic member and drives it to deform. The locking limiting part is arranged adjacent to the locking cooperation part along the axial direction of the limiting cylinder and is suitable for restricting the locking member from disengaging from the limiting cylinder.

[0012] In an optional implementation manner, the adhering member includes: a support sheet, which is connected to the limiting cylinder and is spaced from the locking member, and a plurality of support sub-sheets are radially distributed along the circumferential direction of the limiting cylinder on the support sheet, and the ventilation holes are arranged on the support sub-sheets; a medical tape, which is connected and arranged on the support sheet and is suitable for covering and adhering to the affected area, and the medical tape is provided with an adjusting opening, and the adjusting opening extends from the outer edge of the medical tape to a position adjacent to the limiting cylinder.

[0013] In an alternative embodiment, the puncture assembly includes: a sheath structure, which is hollow; a dilator, detachably inserted into the sheath structure, with one end being a tip and the other end being provided with a limiting stop, and the end of the dilator with the tip is adapted to penetrate out of the sheath structure; the sheath structure has a puncture state for accommodating the dilator and a state to be disassembled for accommodating a drainage tube and away from the dilator, and the sheath structure in the state to be disassembled is adapted to be detached from the drainage tube under an external force.

[0014] In an alternative embodiment, the sheath structure includes: a tube body, which is hollow, and its inner diameter is greater than the outer diameters of the dilator and the drainage tube respectively. An opening tear is provided at one end of the tube body, and the opening tear extends along the length direction of the tube body; a handle assembly, connected to the end of the tube body where the opening tear is provided, includes a first handle and a second handle, and the first handle and the second handle are respectively connected to both sides of the opening tear.

[0015] In an alternative embodiment, when the sheath structure is in the puncture state, the inner wall of the tube body fits with the outer wall of the dilator, and the end of the tube body far from the opening tear is arranged on the same side as the end of the dilator with the tip and has a smooth transition.

[0016] In an alternative embodiment, the puncture drainage device further includes: at least one connection point, connected and arranged between the first handle and the second handle.

[0017] In an alternative embodiment, the drainage assembly further includes: a limiting clip, connected and arranged on the driving member, adapted to clamp and limit an external structure; a first switch member, arranged on the drainage tube on the side far from the driving member and the affected part, adapted to correspondingly adjust the opening and closing of the drainage tube.

[0018] In an alternative embodiment, the drainage assembly further includes: a drainage container, communicated with the drainage tube and correspondingly arranged on the side of the first switch member far from the driving member along the extending direction of the drainage tube; a second switch member, correspondingly arranged between the first switch member and the drainage container; a disassembly and assembly part, arranged on the drainage tube between the first switch member and the second switch, adapted to disconnect the drainage tube or seal and conduct the drainage tube under an external force. Description of the Drawings

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 The structural schematic diagram of a puncture drainage device according to an embodiment of the present utility model;

[0021] Figure 2 is Figure 1 The structural schematic diagram of the dilator of the puncture drainage device shown;

[0022] Figure 3 is Figure 1 The structural schematic diagram of the sheath tube structure of the puncture drainage device shown;

[0023] Figure 4 is Figure 1 The structural schematic diagram of the limiting component of the puncture drainage device shown;

[0024] Figure 5 is Figure 4 The structural schematic diagram of another angle of the limiting component of the puncture drainage device shown;

[0025] Figure 6 is Figure 1 The internal structural schematic diagram of the limiting component of the puncture drainage device shown;

[0026] Explanation of reference numerals:

[0027] 1. Drainage component; 11. Drainage tube; 12. Driving member; 13. Limiting clip; 14. First switch member; 15. Drainage container; 16. Second switch member; 17. Dismantling and assembling part; 2. Puncture component; 21. Tube body; 22. Tearing opening; 23. Handle assembly; 24. Dilator; 241. Limiting stop; 25. Connection point; 3. Limiting component; 31. Limiting cylinder; 311. Locking and mating part; 312. Locking and limiting part; 32. Elastic member; 33. Locking member; 331. Abutting end; 34. Support plate; 35. Medical tape; 351. Adjusting opening. Detailed implementation manners

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] As Figures 1-6 , in the first aspect, this embodiment provides a puncture drainage device, including: a drainage component 1, a puncture component 2 and a limiting component 3.

[0030] The drainage component 1 includes a drainage tube 11 and a driving member 12. The drainage tube 11 is specifically a flexible tube, one end of which is inserted into the affected area, and the accumulated fluid, blood, and pus in the affected area are drained to the other end. The driving member 12 is connected to the drainage tube 11 and can provide drainage power for the drainage tube 11, driving the accumulated fluid, blood, and pus in the affected area to be discharged along the drainage tube 11. Specifically, the driving member 12 is an elastically arranged negative pressure drainage balloon, which is communicated with the drainage tube 11 and provides negative pressure adsorption power by hand squeezing. As a variable implementation method, the driving member 12 can also be a suction pump, etc. In this embodiment, the driving member 12 is away from the affected area to ensure operation safety;

[0031] The puncture component 2 is detachably arranged on the drainage tube 11 and is suitable for guiding the drainage tube 11 to be inserted into the affected area. In this way, the puncture component 2 can be removed after the drainage tube 11 is inserted, and only the drainage tube 11 is retained, reducing the user's burden;

[0032] The limiting component 3 is arranged on the drainage tube 11 and is suitable for limiting and connecting the drainage tube 11 to the affected area.

[0033] By setting the puncture component 2 to cooperate with the drainage tube 11, it is convenient to pierce the affected area to form an incision for the drainage tube 11 to enter. Cooperating with the driving member 12, puncture indwelling and driving drainage within the puncture range of the puncture component 2 can be realized, that is, at least puncture indwelling and driving drainage of superficial tissues such as the skin can be realized. At the same time, a limiting component 3 is arranged on the drainage tube 11 to limit and connect the drainage tube 11 to the affected area. With such a setting, the puncture drainage device is equipped with a limiting component 3 and has been arranged on the drainage tube 11. Medical staff can directly use it or set up instruments on the basis of the limiting component 3 for auxiliary adjustment to ensure the effective fixation of the drainage tube 11, overcoming the problem in the prior art that the lack of fixation or insufficient fixation effect of the drainage tube 11 increases the pain and burden of patients. With such a setting, the puncture drainage device is convenient for puncture drainage, can provide continuous negative pressure suction and is easy to fix.

[0034] In this embodiment, the limiting component 3 includes an adjusting member and an adhering member.

[0035] Among them, the adjusting member internally contains the drainage tube 11, and the adjusting member is detachably and limit-connected to the drainage tube 11. With such a setting, the adjusting member can change its installation position on the drainage tube 11 as needed. The adhering member is connected to the adjusting member and is provided with a number of ventilation holes. The adhering member is suitable for being adhesively set on the affected area. The setting of the ventilation holes is more beneficial to the health of the patient.

[0036] Specifically, the adjusting member includes: a limiting cylinder 31, an elastic member 32, and a locking member 33.

[0037] The limiting cylinder 31 is in the shape of a hollow straight cylinder and is sleeved outside the drainage tube 11. One end of the limiting cylinder 31 is arranged adjacent to the affected area, and on the outer wall of the other end far from the affected area, there are a locking and mating portion 311 and a locking and limiting portion 312. The locking and mating portion 311 is arranged along the axial direction of the limiting cylinder 31. In this embodiment, the locking and mating portion 311 is an external thread arranged along the outer wall of the limiting cylinder 31, and the locking and limiting portion 312 is a radial protrusion arranged on the outer wall of the limiting cylinder 31.

[0038] The elastic member 32 is specifically a silica gel sleeve and can also be made of elastic materials such as rubber. It is arranged inside the limiting cylinder 31 and is correspondingly arranged between the inner wall of the limiting cylinder 31 and the outer wall of the drainage tube 11.

[0039] The locking member 33 is specifically a locking knob, which is sleeved on one end of the limiting cylinder 31 far from the affected area. There is an abutting end 331 on it. The abutting end 331 extends into the limiting cylinder 31 and is also arranged in a cylindrical shape. The drainage tube 11 is sleeved inside it. Preferably, the drainage tube 11 and the abutting end 331 are movably connected.

[0040] The locking member 33 is provided with an internal thread and is threadedly connected to the locking and mating portion 311. It is adapted to move up and down along the locking and mating portion 311 under the action of an external force. When moving towards the elastic member 32, the abutting end 331 can apply a force to the elastic member 32 and drive it to deform, so that the elastic member 32 is squeezed towards the radial inner side, increasing the frictional force between the elastic member 32 and the drainage tube 11 and effectively limiting the two.

[0041] In this embodiment, the locking and limiting portion 312 is arranged adjacent to the locking and mating portion 311 along the axial direction of the limiting cylinder 31. Preferably, it is correspondingly arranged on the side of the locking and mating portion 311 facing the affected area. An inner groove that mutually limits the locking and mating portion 311 is arranged inside the locking member 33 to accommodate and limit the locking and mating portion 311 to prevent the locking member 33 from disengaging from the limiting cylinder 31.

[0042] As a changeable implementation manner, the adjusting member can also be a clip with an annular clip opening whose inner diameter is slightly smaller than the outer diameter of the drainage tube 11.

[0043] The adhering member includes: a support piece 34 and a medical tape 35.

[0044] Among them, the support piece 34 is connected to the limiting cylinder 31, and preferably, they are integrally provided. The support piece 34 and the locking member 33 are spaced apart from each other to prevent the locking member 33 from moving and pressing the support piece 34. A number of support sub-pieces are radially distributed along the circumference of the limiting cylinder 31 on the support piece 34, and the specific number is not limited. Preferably, the support sub-pieces are evenly distributed. Vent holes are provided on the support sub-pieces, which can reduce the weight and improve the air permeability. In addition, the setting of the support piece 34 can expand the contact area with the medical tape 35 and indirectly connect the medical tape 35 and the adjusting member to ensure the tightness of their connection.

[0045] The medical tape 35 is connected and arranged on the support piece 34, with multiple layers and many tiny vent holes. Preferably, it can extend to the entire support piece 34 and can cover and adhere to the affected area. The medical tape 35 is provided with an adjustment opening 351, and the adjustment opening 351 extends from the outer edge of the medical tape 35 to a position adjacent to the limiting cylinder 31. The setting of the adjustment opening 351 can improve the applicable range of the medical tape 35 for affected areas of different shapes. Further preferably, the support piece 34 can be a thin metal sheet, which can be deformed under an external force to cooperate with the medical tape 35.

[0046] As a variable implementation manner, the support piece 34 may not be provided, and the medical tape 35 is directly connected to the limiting cylinder 31, or the support piece 34 can be non-radial such as circular, or the medical tape 35 can be other flexible fixing devices such as gauze.

[0047] The puncture assembly 2 includes: a sheath structure and a dilator 24.

[0048] In this embodiment, at least one of the sheath structure and the dilator 24 can be made by plastic injection molding. Preferably, the sheath structure can be made of a polymer material, such as PE or PP, etc.

[0049] The sheath structure is hollow, and the dilator 24 is detachably inserted into the sheath structure. One end is provided with a tip, and the other end is provided with a limiting block 241. The outer diameter of the limiting block 241 is larger than the maximum inner diameter of the sheath structure. In this embodiment, the limiting block 241 is in the shape of a circular sheet. In addition, a fixing ring is provided between the tip and the limiting block 241. The fixing ring protrudes radially along the dilator 24 and is adjacent to the limiting block 241. Preferably, the length of the dilator 24 is greater than that of the sheath structure, and the end of the dilator 24 with the tip is adapted to penetrate out of the sheath structure.

[0050] The sheath structure has a puncture state for accommodating the dilator 24 and a state to be disassembled for accommodating the drainage tube 11 away from the dilator 24. Specifically, away from the dilator 24 means manually pulling out the dilator 24. The sheath structure in the state to be disassembled is adapted to be detached from the drainage tube 11 under an external force.

[0051] The sheath tube structure includes: a tube body 21 and a handle assembly 23. The two can be connected by insert molding.

[0052] The tube body 21 is hollow, and its inner diameter is respectively larger than the outer diameters of the dilator 24 and the drainage tube 11. A tear opening 22 is provided at one end of the tube body 21, and the tear opening 22 extends along the length direction of the tube body 21. As a transformable embodiment, along the extension line of the tear opening 22 along the length direction of the tube body 21, its wall thickness is smaller than other parts.

[0053] The handle assembly 23 is connected to the end of the tube body 21 where the tear opening 22 is provided, and includes a first handle and a second handle that can be grasped by a user. The first handle and the second handle are respectively connected to both sides of the tear opening 22.

[0054] In addition, inner grooves facing the direction of the limit stop 241 are provided on both the first handle and the second handle. The inner grooves cooperate with the fixing ring, and the two are detachably and limit-connected. Such a setting can make the dilator 24 and the sheath tube structure relatively stationary during use.

[0055] As a transformable embodiment, multiple tear openings 22 can be provided, and multiple handles are correspondingly provided.

[0056] Preferably, when the sheath tube structure is in a puncture state, the inner wall of the tube body 21 fits against the outer wall of the dilator 24. The end of the tube body 21 far from the tear opening 22 is arranged on the same side as the end of the dilator 24 with a tip, and a smooth transition is formed. Such a setting facilitates the insertion of the sheath tube structure following the tip of the dilator 24.

[0057] The puncture drainage device further includes connection points 25, and the specific number can be one, two or more. The connection points 25 are connected and arranged between the first handle and the second handle.

[0058] Such a setting can maintain the use strength of the handle assembly 23, avoid unexpected separation and tearing during operation. On the other hand, it provides damping during the tearing process, so that when the two handles are separated to the tube body 21, the separation force is relatively uniform, and avoid obvious differences in the separation force provided when the two handles are separated to the tube body 21, resulting in an uncontrollable tearing process.

[0059] The drainage assembly 1 further includes: a limit clip 13 and a first switch member 14.

[0060] The limit clip 13 is connected and arranged on the driving member 12, and is suitable for clamping and limiting an external structure, sharing the weight of the driving member 12 and reducing the user's pressure. The first switch member 14 can be a buckle or a manual valve, etc., and is arranged on the drainage tube 11 on the side far from the driving member 12 and the affected area, and is suitable for correspondingly adjusting the opening and closing of the drainage tube 11. The first switch member 14 can control whether the driving member 12 discharges the accumulated fluid.

[0061] As a transformable embodiment, one of the limit clip 13 and the first switch member 14 may be provided, or neither of them may be provided.

[0062] The drainage assembly 1 further includes: a drainage container 15, a second switch member 16, and a dismounting and assembling portion 17.

[0063] The drainage container 15 is preferably a drainage bag, which is communicated with the drainage tube 11 and is correspondingly arranged on the side of the first switch member 14 away from the driving member 12 along the extending direction of the drainage tube 11.

[0064] The second switch member 16 may be a buckle or a manual valve, etc., and is correspondingly arranged between the first switch member 14 and the drainage container 15 for controlling whether the accumulated liquid enters the drainage container 15;

[0065] The dismounting and assembling portion 17 may specifically be a screw-sealing switch, which is arranged on the drainage tube 11 between the first switch member 14 and the second switch, and is adapted to disconnect the drainage tube 11 under an external force or seal and conduct the drainage tube 11. Specifically, disconnecting means separating the drainage tube 11 into two sections, and the dismounting and assembling portion 17 is respectively arranged on the ends of the two sections in contact, and can be disassembled or screwed and sealed to disconnect or conduct the drainage tube 11.

[0066] The arrangement of the dismounting and assembling portion 17 can separate the drainage container 15 and the second switch member 16 into independent structures.

[0067] As a transformable embodiment, the drainage container 15, the second switch member 16, and the dismounting and assembling portion 17 may not be provided.

[0068] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A puncture drainage device, characterized in that: include: A drainage assembly (1) comprises a drainage tube (11) and a driving member (12), wherein the drainage tube (11) is suitable for being inserted into an affected area, and the driving member (12) is connected to the drainage tube (11) and is suitable for being away from the affected area and providing drainage power to the drainage tube (11); A puncture assembly (2) is detachably arranged on the drainage tube (11) and is suitable for guiding the drainage tube (11) to be inserted into an affected area; A limiting component (3) is arranged on the drainage tube (11) and is suitable for limiting the connection of the drainage tube (11) to the affected area.

2. The puncture drainage device according to claim 1, characterized in that: The limiting component (3) comprises: An adjusting member, in which the drainage tube (11) is built, and is detachably connected to the drainage tube (11) in a limiting manner; The adhesive component is connected and arranged on the adjusting component, and is provided with a plurality of air holes. The adhesive component is suitable for being bonded and arranged on the affected part.

3. The puncture drainage device according to claim 2, characterized in that: The adjusting member comprises: A limiting cylinder (31) is sleeved and arranged outside the drainage tube (11); an outer wall of an end of the limiting cylinder (31) away from the affected part is provided with a locking fitting portion (311) and a locking limiting portion (312); and the locking fitting portion (311) is distributed along the axial direction of the limiting cylinder (31); An elastic member (32) is arranged in the limiting cylinder (31) and is correspondingly arranged between the inner wall of the limiting cylinder (31) and the outer wall of the drainage tube (11); The locking member (33) is sleeved on the end of the limiting tube (31) away from the affected part, and is provided with an abutting end (331). The abutting end (331) is extended into the limiting tube (31), and is sleeved with the drainage tube (11). The locking member (33) is movably connected with the locking fitting portion (311), and is suitable for moving along the locking fitting portion (311) under the action of an external force, so that the abutting end (331) applies force to the elastic member (32) and drives it to deform. The locking limiting portion (312) is arranged adjacent to the locking fitting portion (311) along the axial direction of the limiting tube (31), and is suitable for limiting the locking member (33) from escaping from the limiting tube (31).

4. The puncture drainage device according to claim 3, characterized in that: The adhesive attachment comprises: A support sheet (34) is connected to the limiting cylinder (31) and is arranged at intervals with the locking member (33). The support sheet (34) is radially distributed along the circumference of the limiting cylinder (31) and has a plurality of support segments, and the air holes are arranged on the support segments; A medical tape (35) is connected to the support sheet (34) and is suitable for covering and adhering to the affected area. The medical tape (35) is provided with an adjustment opening (351), and the adjustment opening (351) extends from the outer edge of the medical tape (35) to a position adjacent to the limiting cylinder (31).

5. The puncture drainage device according to any one of claims 1 to 4, characterized in that: The puncture assembly (2) comprises: The sheath tube structure is hollow; A dilator (24) is detachably arranged in the sheath structure, one end of which is arranged with a pointed tip, and the other end of which is provided with a limit stopper (241), and the end of the dilator (24) arranged with a pointed tip is suitable for passing through the sheath structure; The sheath structure has a puncture state for accommodating the dilator (24), and a ready-to-remove state for accommodating the drainage tube (11) away from the dilator (24). The sheath structure in the ready-to-remove state is suitable for being removed from the drainage tube (11) under the action of an external force.

6. The puncture drainage device according to claim 5, characterized in that: The sheath structure comprises: The tube body (21) is hollow and has an inner diameter greater than the outer diameters of the dilator (24) and the drainage tube (11). A tearing opening (22) is provided at one end of the tube body (21), and the tearing opening (22) extends along the length direction of the tube body (21); The handle assembly (23) is connected to one end of the tube body (21) provided with the tear opening (22), and comprises a first handle and a second handle, wherein the first handle and the second handle are respectively connected to two sides of the tear opening (22).

7. The puncture drainage device according to claim 6, characterized in that: When the sheath tube structure is in a puncture state, the inner wall of the tube body (21) fits against the outer wall of the dilator (24), and the end of the tube body (21) away from the tearing opening (22) is arranged on the same side as the end of the dilator (24) arranged at a pointed end, and the transition is smooth.

8. The puncture drainage device according to claim 6, characterized in that: Also includes: At least one connection point (25) is provided between the first handle and the second handle.

9. The puncture drainage device according to any one of claims 1-4, 6-8, characterized in that: The drainage component (1) further comprises: A limiting clamp (13), connected to the driving member (12), suitable for clamping the limiting external structure; The first switch member (14) is arranged on the drainage tube (11) at a side away from the driving member (12) and the affected part, and is suitable for correspondingly adjusting the opening and closing of the drainage tube (11).

10. The puncture drainage device according to claim 9, characterized in that: The drainage component (1) further comprises: A drainage container (15) is communicated with the drainage tube (11) and is arranged along the extension direction of the drainage tube (11) and correspondingly on a side of the first switch element (14) away from the driving element (12); A second switch member (16) is correspondingly arranged between the first switch member (14) and the drainage container (15); The disassembly portion (17) is arranged on the drainage tube (11) between the first switch member (14) and the second switch, and is suitable for disconnecting the drainage tube (11) under the action of an external force, or sealing the drainage tube (11).

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