Intrathoracic drainage tube capable of preventing unplanned extubation and drainage assembly

Abstract

The utility model relates to the technical field of medical instruments, in particular to an unplanned extubation prevention chest drainage tube and a drainage assembly. The utility model provides a chest drainage tube capable of preventing unplanned extubation. The chest drainage tube comprises a drainage tube, a first extubation prevention mechanism and a second extubation prevention mechanism, the second anti-pulling mechanism comprises a second bonding piece and a second anti-pulling structure which are connected, the second bonding piece is used for being bonded around the thoracic cavity wound, the second anti-pulling structure is used for fixing the end, close to the thoracic cavity wound, of the drainage tube, and the second bonding piece is provided with a round hole allowing the drainage tube to penetrate through; the first anti-pulling mechanism comprises a first bonding piece and a first retention structure which are connected, and the first bonding piece is used for being attached to the human body. The drainage tube is fixed through the first anti-pulling mechanism and the second anti-pulling mechanism at the same time, the situation that the drainage tube is misplaced due to mistaken pulling can be effectively prevented, and the stability of the drainage tube is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a chest drainage tube and a drainage component for preventing unplanned extubation. Background Art

[0002] Chest drainage is a drainage method that inserts a special silicone tube, plastic tube or surgical chest drainage tube into the chest cavity to continuously discharge the gas, pus or blood in the chest cavity. Chest drainage tube is a drainage device widely used in hemothorax, pneumothorax and empyema, and plays a very important role in the treatment of diseases. The main principle of chest drainage tube is to discharge the effusion in the chest cavity through external fixing force and pressure difference, so as to help the lung tissue to expand and the patient to recover as soon as possible.

[0003] At present, after the chest drainage tube is inserted, the following situations of accidentally pulling out the drainage tube are prone to occur: First, because the collection tank is generally placed on the ground, it is often accidentally touched and kicked over. As the collection tank is knocked over, the drainage tube is pulled. Second, the lower part of the drainage tube is generally placed on the side of the bed, and passers-by accidentally pull the drainage tube. Third, when the patient's limbs swing or move, the drainage tube is accidentally pulled. When the drainage tube is pulled, it is easy to cause the drainage tube to be detached from the position of the chest wound and the medical tape at the position of the chest wound, and even the drainage tube may be misplaced, causing pain to the patient. Utility Model Content

[0004] (I) The problem to be solved by the utility model is that the current chest drainage tube is often accidentally pulled, causing the drainage tube to separate from the strip tape, or even causing the drainage tube to be misplaced, causing pain to the patient.

[0005] (II) Technical solution

[0006] A chest drainage tube for preventing unplanned extubation, comprising a drainage tube, a first anti-extubation mechanism and a second anti-extubation mechanism;

[0007] The second anti-pullout mechanism comprises a second adhesive sheet and a second anti-pullout structure connected to each other, the second adhesive sheet is used to be adhered around the chest wound, the second anti-pullout structure is used to fix one end of the drainage tube close to the chest wound, and the second adhesive sheet is provided with a circular hole for the drainage tube to pass through;

[0008] The first anti-pulling mechanism comprises a first adhesive sheet and a first retaining structure connected to each other, the first adhesive sheet is used to be attached to the human body, and the first retaining structure is used to retain the drainage tube;

[0009] The second anti-pullout structure includes an anti-pullout fastener provided on the second adhesive sheet, the anti-pullout fastener includes an anti-pullout block and an airbag mechanism, the anti-pullout block is provided with a straight hole for the drainage tube to pass through, and the straight hole is connected to the circular hole on the second adhesive sheet;

[0010] The anti-pullout block is provided with a plurality of accommodating cavities along its radial direction for accommodating the airbag columns, and the accommodating cavities are communicated with the straight holes; the airbag mechanism comprises an air injection mechanism and a plurality of airbag columns corresponding to the accommodating cavities one by one, the airbag columns are installed in the corresponding accommodating cavities, and the air injection mechanism is used for inflating the plurality of airbag columns.

[0011] According to one embodiment of the utility model, the air injection mechanism includes a round tube, an air inlet pipe, a valve and an air pipe joint; the round tube is arranged on the outside of the anti-pullout block, and the airbag column and the round tube are connected by a connecting pipe, one end of the air inlet pipe is connected to the round tube, and the other end thereof is equipped with an air pipe joint, and the valve is installed on the air inlet pipe.

[0012] According to an embodiment of the utility model, a plurality of through holes connected to the accommodating cavity are opened on the side of the anti-pulling block around its axis, the through holes correspond to the accommodating cavity one by one, and one end of the connecting tube passes through the through holes and is connected to the round tube.

[0013] According to one embodiment of the utility model, the first retaining structure includes at least two retaining parts, and the two retaining parts are arranged along the length direction of the first adhesive sheet; the retaining parts include Velcro and cable ties, the Velcro is arranged on the first adhesive sheet, and the cable tie is arranged on the Velcro for tying the drainage tube.

[0014] According to an embodiment of the utility model, the Velcro includes a male surface and a female surface that match each other, the male surface of the Velcro is fixed on the first adhesive sheet, and the cable tie is fixed on the female sheet of the Velcro.

[0015] According to one embodiment of the utility model, the first retaining structure includes a first S-shaped tube seat, an arc-shaped tube seat and a second S-shaped tube seat, the first S-shaped tube seat, the arc-shaped tube seat and the second S-shaped tube seat are arranged between the two retaining members, and the portion of the drainage tube located between the first S-shaped tube seat, the arc-shaped tube seat and the second S-shaped tube seat is wavy.

[0016] According to an embodiment of the present invention, the first S-shaped tube seat and the second S-shaped tube seat are symmetrically arranged with respect to the arc-shaped tube seat.

[0017] According to an embodiment of the utility model, the first S-shaped tube seat, the arc-shaped tube seat and the second S-shaped tube seat are all rubber tube seats.

[0018] A chest drainage assembly comprises the above-mentioned chest drainage tube for preventing unplanned extubation and a collection tank.

[0019] Beneficial effects of the utility model:

[0020] After the first end of the drainage tube is inserted into the patient's chest cavity, the second anti-pullout mechanism is passed through the second end of the drainage tube, that is, the second end of the drainage tube is passed through the circular hole on the second adhesive sheet and the straight hole on the anti-pullout block in sequence, and then the second anti-pullout mechanism is pushed along the length direction of the drainage tube until the second adhesive sheet is attached to the periphery of the chest wound, and then the gas injection mechanism is used to inflate multiple airbag columns, and the airbag columns in the accommodating cavity extend toward the straight hole until they squeeze the drainage tube in the straight hole, thereby achieving the function of retaining the drainage tube. Subsequently, the first adhesive sheet of the first anti-pullout mechanism is attached to the waist of the human body, and the first retaining structure is used to retain the drainage tube, and finally the second end of the drainage tube is connected to the collection tank, and the collection tank is placed on the ground.

[0021] When the drainage tube from the first anti-pull mechanism to the collection tank is pulled by mistake, the drainage tube from the first anti-pull mechanism to the second anti-pull mechanism will not be pulled due to the action of the first anti-pull mechanism, so that even if the collection tank is kicked over or a pedestrian accidentally pulls the drainage tube from the first anti-pull mechanism to the collection tank, the end of the drainage tube near the chest wound will not be misplaced. Since the airbag mechanism in the second anti-pull mechanism can fix the drainage tube in the straight hole of the anti-pull block, the end of the drainage tube near the chest wound is effectively fixed, so that even if the drainage tube is accidentally pulled by the patient's limbs when swinging or moving, the end of the drainage tube near the chest wound will not be misplaced.

[0022] The drainage tube is fixed in place by the first anti-pullout mechanism and the second anti-pullout mechanism at the same time, which can effectively prevent the drainage tube from being misplaced due to accidental pulling, thereby ensuring the stability of the drainage tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A front view provided for an embodiment of the utility model;

[0025] Figure 2 A front view of a second anti-pulling mechanism provided in an embodiment of the utility model;

[0026] Figure 3 A cross-sectional view of a second anti-pulling mechanism provided in an embodiment of the utility model;

[0027] Figure 4 This is a front view of the first anti-pulling mechanism provided in an embodiment of the utility model.

[0028] Icons: 1. Drainage tube; 2. First anti-pullout mechanism; 201. First adhesive sheet; 202. Velcro; 203. First cable tie; 204. Second cable tie; 205. First S-shaped tube socket; 206. Arc-shaped tube socket; 207. Second S-shaped tube socket; 3. Collection tank; 4. Second anti-pullout mechanism; 401. Rubber sheet; 402. Adhesive layer; 403. Release paper; 5. Anti-pullout fastener; 501. Straight hole; 502. Airbag column; 503. Connecting tube; 504. Round tube; 505. Inlet pipe; 506. Valve; 507. Trachea joint. DETAILED DESCRIPTION

[0029] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] like Figure 1-Figure 4 As shown, the first embodiment of the utility model provides a chest drainage tube for preventing unplanned tube removal, including a drainage tube 1, a first anti-removal mechanism 2 and a second anti-removal mechanism 4; the second anti-removal mechanism 4 includes a second adhesive sheet and a second anti-removal structure connected to each other, the second adhesive sheet is used to be adhered around the chest wound, the second anti-removal structure is used to fix one end of the drainage tube 1 close to the chest wound, and the second adhesive sheet is provided with a circular hole for the drainage tube 1 to pass through; the first anti-removal mechanism 2 includes a first adhesive sheet 201 and a first retaining structure connected to each other, the first adhesive sheet 201 is used to be attached to the human body, and the first retaining structure is used to fix the end of the drainage tube 1 close to the chest wound. The drainage tube 1 is fixed in place; the second anti-pullout structure includes an anti-pullout fastener 5 arranged on the second adhesive sheet, the anti-pullout fastener 5 includes an anti-pullout block and an airbag mechanism, the anti-pullout block is provided with a straight hole 501 for the drainage tube 1 to pass through, and the straight hole 501 is communicated with the circular hole on the second adhesive sheet; the anti-pullout block is provided with a plurality of accommodating cavities for accommodating airbag columns 502 along its radial direction, and the accommodating cavities are communicated with the straight holes 501; the airbag mechanism includes an injection mechanism and a plurality of airbag columns 502 corresponding to the accommodating cavities one by one, the airbag columns 502 are installed in the corresponding accommodating cavities, and the injection mechanism is used to inflate the plurality of airbag columns 502.

[0031] It should be noted that in the past, the following situations of mistakenly pulling out the drainage tube 1 were prone to occur: First, because the collection tank 3 is generally placed on the ground, it is often accidentally touched and kicked over, and as the collection tank 3 is knocked over, the drainage tube 1 is pulled. Second, the lower half of the drainage tube 1 is generally placed on the side of the bed, and passers-by accidentally pull the drainage tube 1. Third, when the patient swings or moves his limbs, the drainage tube 1 is accidentally pulled.

[0032] In this embodiment, after the first end of the drainage tube 1 is inserted into the patient's chest cavity, the second anti-pullout mechanism 4 is passed through the second end of the drainage tube 1, that is, the second end of the drainage tube 1 is passed through the circular hole on the second adhesive sheet and the straight hole 501 on the anti-pullout block in sequence, and then the second anti-pullout mechanism 4 is pushed along the length direction of the drainage tube 1 until the second adhesive sheet is attached to the periphery of the chest wound, and then the gas injection mechanism is used to inflate the multiple airbag columns 502, and the airbag columns 502 in the accommodating cavity extend toward the straight hole 501 until squeezing the drainage tube 1 in the straight hole 501, thereby achieving the function of retaining the drainage tube 1. Subsequently, the first adhesive sheet 201 of the first anti-pullout mechanism 2 is attached to the waist of the human body, and then the first retaining structure is used to retain the drainage tube 1, and finally the second end of the drainage tube 1 is connected to the collection tank 3, and the collection tank 3 is placed on the ground.

[0033] When the drainage tube 1 from the first anti-pullout mechanism 2 to the collecting tank 3 is pulled by mistake, the drainage tube 1 from the first anti-pullout mechanism 2 to the second anti-pullout mechanism 4 will not be pulled due to the action of the first anti-pullout mechanism 2. In this way, even if the collecting tank 3 is kicked over or a pedestrian accidentally pulls the drainage tube 1 from the first anti-pullout mechanism 2 to the collecting tank 3, the end of the drainage tube 1 close to the chest wound will not be misplaced.

[0034] Because the airbag mechanism in the second anti-pullout mechanism 4 can fix the drainage tube 1 in the straight hole 501 of the anti-pullout block, the end of the drainage tube 1 close to the chest wound is effectively fixed. In this way, even if the drainage tube 1 is accidentally pulled by an object when the patient swings or moves his limbs, the end of the drainage tube 1 close to the chest wound will not be misplaced.

[0035] It can be seen that in this embodiment, the drainage tube 1 is fixed in place by the first anti-pullout mechanism 2 and the second anti-pullout mechanism 4 at the same time, which can effectively prevent the drainage tube 1 from being misplaced due to accidental pulling, thereby ensuring the stability of the drainage tube 1.

[0036] In this embodiment, if Figure 2 and Figure 3As shown, the second adhesive sheet is in the shape of a ring, and the hole at the center thereof forms the above-mentioned circular hole, and the anti-pullout block in the anti-pullout fastener 5 is fixed to the non-adhesive surface of the second adhesive sheet, and the anti-pullout block is a cylindrical block, on which a straight hole 501 is provided for the drainage tube 1 to pass through, and the straight hole 501 is connected to the circular hole on the second adhesive sheet, so that the drainage tube 1 can pass through the second adhesive sheet and the anti-pullout block.

[0037] like Figure 3 As shown, a plurality of accommodating cavities for accommodating the airbag column 502 are provided along the radial direction of the anti-pullout block. The accommodating cavities are cylindrical cavities, and a plurality of accommodating cavities are evenly arranged around the axis of the anti-pullout block. Each accommodating cavity is connected to the straight hole 501, and an airbag column 502 is arranged in each accommodating cavity.

[0038] As a preferred embodiment, Figure 2 and Figure 3 The gas injection mechanism includes a round tube 504, an air inlet pipe 505, a plurality of connecting pipes 503, a valve 506 and an air pipe joint 507. Among them, each airbag column 502 is connected to a connecting pipe 503 on the side away from the straight hole 501, and the round tube 504 is arranged outside the anti-pullout block. The end of the connecting pipe 503 away from the airbag column 502 passes through the anti-pullout block and is connected to the round tube 504. Furthermore, one end of the air inlet pipe 505 is connected to the round tube 504, and the other end thereof is installed with an air pipe joint 507, which is used to connect to an external air pump or other inflation device. The valve 506 is installed on the air inlet pipe 505 to control its on and off.

[0039] In this way, after the drainage tube 1 passes through the circular hole of the second adhesive sheet and the straight hole 501 of the anti-pulling block, when the drainage tube 1 needs to be fixed, the inflation device is connected to the air pipe joint 507 of the air inlet pipe 505, and then the valve 506 is opened and the inflation device is pneumatically operated, and the gas enters the circular tube 504 through the air inlet pipe 505, and then enters the airbag column 502 along the connecting pipe 503. As the airbag column 502 is gradually filled, the side of the airbag column 502 close to the straight hole 501 gradually moves closer to the straight hole 501 until the airbag column 502 presses the drainage tube 1 in the straight hole 501. This can effectively prevent the drainage tube 1 from being misplaced due to accidental pulling, and ensure the stability of the drainage tube 1.

[0040] It should be noted that the airbag column 502 is in a hollow cylindrical shape after being filled with air, and the side of the airbag column 502 away from the straight hole 501 is fixed on the inner wall of the accommodating cavity.

[0041] In addition, the inflation volume of the inflation device is set in advance each time when fixed, so as to ensure that the inflation volume in the airbag column 502 is within a reasonable range, so that the airbag column 502 slightly squeezes the drainage tube 1 without excessively squeezing the drainage tube 1.

[0042] In addition, in order to further improve the retention effect of the drainage tube 1, the anti-pullout block can be provided on a side away from the second adhesive sheet, that is, Figure 3 A plurality of adhesive tapes are adhered to the left side surface of the middle anti-pulling block, and the adhesive tapes are also adhered to the drainage tube 1, which can further improve the retention effect of the drainage tube 1, so that the drainage tube 1 near the chest wound can be more stable and will not move easily.

[0043] Exemplarily, a plurality of through holes corresponding to the accommodating cavities are provided on the side of the anti-pulling block around its axis, and the through holes are connected to the corresponding accommodating cavities for the connecting tube 503 to pass through. The end of the connecting tube 503 away from the airbag column 502 passes through the through hole and is connected to the circular tube 504.

[0044] Optional, such as Figure 3 As shown, the second adhesive sheet includes a rubber sheet 401 , an adhesive layer 402 and a release paper 403 which are connected in sequence, wherein the anti-pulling block is arranged on the rubber sheet 401 .

[0045] As a preferred embodiment, Figure 4 As shown, the first anti-pulling mechanism 2 includes a first adhesive sheet 201 and a first retaining structure connected to each other, wherein the first retaining structure includes at least two retaining members, and the two retaining members are arranged along the length direction of the first adhesive sheet 201 .

[0046] Specifically, the retaining member includes a Velcro 202 and a cable tie. The Velcro 202 is arranged on the non-adhesive surface of the first adhesive sheet 201 , and the cable tie is arranged on the Velcro 202 for tying up the drainage tube 1 .

[0047] In this embodiment, two cable ties are used to fix the drainage tube 1 at the same time, and the fixing effect is very good. The drainage tube 1 is difficult to separate from the cable ties, thereby avoiding accidental pulling of the drainage tube 1, which causes the proximal incision end of the drainage tube 1 to be pulled and displaced.

[0048] It should be noted that Velcro 202 is divided into male and female sides: one side is soft fiber, and the other side is elastic fiber with hooks and thorns. When the male and female are buckled, under the condition of a certain horizontal force, the elastic hook is straightened, loosened from the velvet loop and opened, and then restored to the original hook shape, so that the opening and closing can reach as many as 10,000 times, and the service life is long. In this embodiment, the non-bonding surface of the male side of Velcro 202 is fixed on the first adhesive sheet 201, the bonding surface of the female side of Velcro 202 is buckled with the male side of Velcro 202, and the cable tie is installed on the non-bonding surface of the female side of Velcro 202. In this way, when the subsequent patient needs to replace the drainage tube 1, the cable tie can be cut off, and then the female side of Velcro 202 is torn off, and then the new female side of Velcro 202 with the cable tie is buckled with the original male side of Velcro 202, and finally the cable tie is used to fix the new drainage tube 1. In this way, there is no need to replace the entire first anti-pullout mechanism 2, as long as the new female side of Velcro 202 is replaced, the cost is saved.

[0049] Conventional cable ties all include a strap body and a locking block. The strap body is evenly provided with first locking teeth, and the locking block is provided with a locking hole for the strap body to pass through. The locking block in this embodiment is bonded to the mother surface of the Velcro 202.

[0050] like Figure 4 For the convenience of description, the two tie ties are named as the first tie 203 and the second tie 204, respectively. The first S-shaped tube seat 205, the arc-shaped tube seat 206 and the second S-shaped tube seat 207 are arranged in sequence between the first tie 203 and the second tie 204. The first S-shaped tube seat 205, the arc-shaped tube seat 206 and the second S-shaped tube seat 207 are all bonded to the non-bonding surface of the first bonding sheet 201. The first S-shaped tube seat 205 and the second S-shaped tube seat 207 have the same structure, forming an S-shaped tube seat structure, and the arc-shaped tube seat 206 is in an arc shape with a central angle of 180°. The first S-shaped tube socket 205 and the second S-shaped tube socket 207 are symmetrically arranged about the arc-shaped tube socket 206. The first end of the first S-shaped tube socket 205 is close to the second tie 204, and the second end thereof is coaxially arranged with the first end of the arc-shaped tube socket 206. The first end of the second S-shaped tube socket 207 is coaxially arranged with the second end of the arc-shaped tube socket 206, and the second end thereof is close to the first tie 203.

[0051] When using the first anti-pulling mechanism 2 to fix the drainage tube 1, first pass the free end of the drainage tube 1 through the first tie 203 and the second tie 204 in sequence, then press the drainage tube 1 between the first tie 203 and the second tie 204 to press the drainage tube 1 into the first S-shaped tube seat 205, the arc-shaped tube seat 206 and the second S-shaped tube seat 207, and finally tighten the two tie ties. Figure 4 As shown, the portion of the drainage tube 1 located between the first S-shaped tube seat 205, the arc-shaped tube seat 206 and the second S-shaped tube seat 207 is in a continuous wave shape.

[0052] The continuous wavy portion between the first S-shaped tube seat 205, the arc-shaped tube seat 206 and the second S-shaped tube seat 207 has sufficient pulling margin to act as a buffer, so that when the end of the drainage tube 1 close to the collection tank 3 is pulled, the end of the drainage tube 1 near the incision will not receive any pulling force.

[0053] As a preferred embodiment, the first S-shaped tube seat 205 , the arc-shaped tube seat 206 and the second S-shaped tube seat 207 are all rubber tube seats, so that the first S-shaped tube seat 205 , the arc-shaped tube seat 206 and the second S-shaped tube seat 207 can fit the first adhesive sheet 201 as closely as possible.

[0054] Embodiment 2

[0055] The second embodiment provides a chest drainage assembly, including a chest drainage tube for preventing unplanned extubation and a collection tank 3 in the first embodiment, wherein the end of the drainage tube 1 extends into the collection tank 3, and the collection tank 3 is used to collect pleural effusion.

[0056] In the description of the present invention, it should be noted that the terms "upper" and "lower" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0057] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A chest drainage tube for preventing unplanned extubation, characterized in that: It comprises a drainage tube (1), a first anti-pulling mechanism (2) and a second anti-pulling mechanism (4); The second anti-removal mechanism (4) comprises a second adhesive sheet and a second anti-removal structure connected to each other, the second adhesive sheet is used to be adhered around the chest wound, the second anti-removal structure is used to fix one end of the drainage tube (1) close to the chest wound, and the second adhesive sheet is provided with a circular hole for the drainage tube (1) to pass through; The first anti-pulling mechanism (2) comprises a first adhesive sheet (201) and a first retaining structure which are connected to each other, the first adhesive sheet (201) being used to adhere to the human body, and the first retaining structure being used to retain the drainage tube (1); The second anti-pullout structure comprises an anti-pullout fastener (5) provided on the second adhesive sheet, the anti-pullout fastener (5) comprising an anti-pullout block and an airbag mechanism, the anti-pullout block being provided with a straight hole (501) for the drainage tube (1) to pass through, and the straight hole (501) being in communication with the circular hole on the second adhesive sheet; The anti-pulling block is provided with a plurality of accommodating cavities for accommodating airbag columns (502) along its radial direction, and the accommodating cavities are in communication with the straight holes (501); the airbag mechanism comprises an air injection mechanism and a plurality of airbag columns (502) corresponding to the accommodating cavities one by one, the airbag columns (502) being installed in the corresponding accommodating cavities, and the air injection mechanism is used to inflate the plurality of airbag columns (502).

2. A chest drainage tube for preventing unplanned extubation according to claim 1, characterized in that: The gas injection mechanism comprises a round tube (504), an air inlet pipe (505), a valve (506) and an air pipe joint (507); the round tube (504) is arranged outside the anti-pulling block, and the air bag column (502) and the round tube (504) are connected via a connecting pipe (503); one end of the air inlet pipe (505) is connected to the round tube (504), and the other end thereof is provided with an air pipe joint (507); and the valve (506) is installed on the air inlet pipe (505).

3. A chest drainage tube for preventing unplanned extubation according to claim 2, characterized in that: A plurality of through holes communicating with the accommodating cavity are provided on the side of the anti-extraction block around its axis, the through holes corresponding to the accommodating cavity one by one, and one end of the connecting tube (503) passes through the through holes and is connected to the circular tube (504).

4. A chest drainage tube for preventing unplanned extubation according to claim 1, characterized in that: The first retaining structure comprises at least two retaining members, the two retaining members being arranged in an array along the length direction of the first adhesive sheet (201); the retaining members comprising a Velcro (202) and a cable tie, the Velcro (202) being arranged on the first adhesive sheet (201), and the cable tie being arranged on the Velcro (202) and used for tying up the drainage tube (1).

5. A chest drainage tube for preventing unplanned extubation according to claim 4, characterized in that: The Velcro (202) comprises a male surface and a female surface that match each other; the male surface of the Velcro (202) is fixed on the first adhesive sheet (201), and the cable tie is fixed on the female sheet of the Velcro (202).

6. A chest drainage tube for preventing unplanned extubation according to claim 5, characterized in that: The first retaining structure comprises a first S-shaped tube seat (205), an arc-shaped tube seat (206) and a second S-shaped tube seat (207); the first S-shaped tube seat (205), the arc-shaped tube seat (206) and the second S-shaped tube seat (207) are arranged between the two retaining members; and a portion of the drainage tube (1) located between the first S-shaped tube seat (205), the arc-shaped tube seat (206) and the second S-shaped tube seat (207) is wavy.

7. A chest drainage tube for preventing unplanned extubation according to claim 6, characterized in that: The first S-shaped tube seat (205) and the second S-shaped tube seat (207) are symmetrically arranged with respect to the arc-shaped tube seat (206).

8. A chest drainage tube for preventing unplanned extubation according to claim 6, characterized in that: The first S-shaped tube seat (205), the arc-shaped tube seat (206) and the second S-shaped tube seat (207) are all rubber tube seats.

9. A chest drainage assembly, characterized in that: A chest drainage tube and a collection can (3) for preventing unplanned extubation as described in any one of claims 1 to 8.

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