Minimally invasive pneumothorax drainage tube

Abstract

The invention relates to a minimally invasive pneumothorax drainage tube, and belongs to the technical field of medical instruments, the minimally invasive pneumothorax drainage tube comprises a hollow tube body and a puncture guide core arranged in the hollow tube body, the hollow tube body is provided with a top hole and a side drainage hole, the outer side of the tube wall of the hollow tube body is coated with a fixed air bag, the fixed air bag is connected with a capillary tube, and the capillary tube is connected with a drainage tube. A one-way valve connected with the capillary tube is arranged at the end part of the capillary tube; the fixing air bag is movably arranged on the hollow pipe body and moves in the axis direction of the hollow pipe body, and the first fixing piece is used for fixing the fixing air bag to the hollow pipe body after the fixing air bag moves to the needed position; the capillary tube is wound on the hollow tube body in a spiral shape, an unwinding piece is arranged on the hollow tube body, and the unwinding piece is used for unwinding the capillary tube to be matched with the position of the fixed air bag on the hollow tube body. The drainage tube has the effect of improving the adaptation degree of the drainage tube.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a minimally invasive pneumothorax drainage tube. Background Technology

[0002] Pneumothorax is a condition in which air enters the pleural cavity, causing it to accumulate. Clinical treatment often involves closed chest drainage, which involves inserting a drainage tube to remove the gas or fluid from the pleural cavity.

[0003] Currently, patent document CN102580172A discloses a minimally invasive pneumothorax drainage tube, including a hollow tube body and a puncture guide core disposed through the hollow tube body; one end of the hollow tube body is provided with a top hole for the tip of the puncture guide core to pass through and for drainage, and the hollow tube body is provided with multiple side drainage holes on the tube wall adjacent to the top hole; the other end of the hollow tube body is provided with a tapered connector for the end of the puncture guide core to pass through and for connecting an external drainage device; the hollow tube body is provided with a spiral anti-bend steel wire in the tube wall located between the top hole and the tapered connector; a fixing airbag covering the tube wall is provided on the outer side of the tube wall in the middle of the hollow tube body, the fixing airbag is connected to a capillary tube, and the capillary tube extends in the tube wall of the hollow tube body located between the fixing airbag and the tapered connector and is led out from the tube wall near the tapered connector, and then connected to a one-way valve.

[0004] However, while the fixation balloon serves to secure the hollow tube, the position of the fixation balloon cannot be adapted to different patients, resulting in a low compatibility of the drainage tube. Summary of the Invention

[0005] To improve the compatibility of drainage tubes, this application provides a minimally invasive pneumothorax drainage tube.

[0006] The minimally invasive pneumothorax drainage tube provided in this application adopts the following technical solution: A minimally invasive pneumothorax drainage tube includes a hollow tube body and a puncture guide core disposed within the hollow tube body. The hollow tube body is provided with a top hole and a side drainage hole. A fixation balloon is wrapped around the outer side of the hollow tube body wall. A capillary tube is connected to the fixation balloon. A one-way valve for connecting the capillary tube is provided at the end of the capillary tube. The fixed airbag is movably mounted on the hollow tube and moves along the axis of the hollow tube. It also includes a first fixing member, which is used to fix the fixed airbag on the hollow tube after it moves to the required position. The capillary is spirally wound around the hollow tube, and the hollow tube is provided with an unwinding device, which is used to unwind the capillary and adapt to the position of the fixed airbag on the hollow tube.

[0007] Optionally, the first fixing member includes rubber rings disposed at both ends of the fixing airbag, the capillary tube passes through the rubber rings and enters between the fixing airbag and the hollow tube, the rubber rings are sealed to the fixing airbag, the first fixing member also includes fixing grooves formed on the hollow tube, the fixing grooves are annular and perpendicular to the axial direction of the hollow tube, multiple fixing grooves are formed and evenly arranged along the axial direction of the hollow tube, and the rubber rings are sleeved in the fixing grooves.

[0008] Optionally, both side walls of the fixing groove are recessed inward to form a sealing space. The vertical cross-section of the sealing space is triangular, and the bottom of the sealing space is flush with the bottom wall of the fixing groove. The rubber ring slides into the sealing space and abuts against the bottom surface and inclined surface of the sealing space. As the fixing airbag injects air, it compresses the rubber ring that enters the sealing space, thereby sealing the rubber ring with the hollow tube.

[0009] Optionally, the corner of the sealed space is provided with an arc-shaped chamfer, and the inner wall of the fixed airbag abuts against the arc-shaped chamfer.

[0010] Optionally, the two sidewalls of the fixing groove are inclined outwards, and the inclined sidewalls of the fixing groove are provided with multiple sealing grooves. The sealing grooves are annular, and the multiple sealing grooves are coaxially arranged with the hollow tube body and the diameter of the sealing grooves gradually increases.

[0011] Optionally, a covering film is provided on the hollow tube body. The covering film is used to cover the opening of the fixing groove. The covering film is provided with an easy-tear slit. The easy-tear slit is connected end to end in a ring shape and the plane where the easy-tear slit is located is perpendicular to the axial direction of the hollow tube body.

[0012] Optionally, the unwinding component includes an unwinding reel, which is rotatably mounted on the hollow tube. The capillary tube passes through the unwinding reel on the side near the one-way valve. The unwinding reel rotates about the axis of the hollow tube. The unwinding component also includes a second fixing member, which is used to fix the unwinding reel after the capillary tube has been unwound to the required length.

[0013] Optionally, the unwinding reel includes a first ring and a second ring. The first ring is sleeved and fixed on the hollow tube body, and the second ring is sleeved on the first ring. The second ring is rotatably mounted on the first ring. The capillary tube passes through the second ring. The second fixing member includes a fixing rod slidably mounted on the first ring and a fixing ring mounted on the second ring. The fixing rod is located within the space of the fixing ring. The inner ring of the fixing ring is provided with an annular rack. The fixing rod is slidably inserted into the teeth of the annular rack. The reel also includes a driving member for driving the fixing rod to slide and engage with the annular rack.

[0014] Optionally, the driving component includes a driving spring sleeved on the fixed rod, one end of which is fixedly mounted on the fixed rod and the other end of which is fixedly mounted on the first ring. The driving spring is used to drive the fixed rod to move toward the annular rack.

[0015] Optionally, when the fixing airbag is in a contracted state, the fixing airbag is tightly attached to the outer wall of the hollow tube.

[0016] In summary, this application includes at least one of the following beneficial technical effects: When using a drainage tube, first determine the depth to which the tube needs to enter the body based on the patient's condition. Then, adjust the position of the fixing balloon on the hollow tube body so that the fixing balloon is positioned at the lesion end of the drainage tube and on the inner wall of the wound. Subsequently, the fixing balloon is fixed to the hollow tube body by the first fixing component. As the position of the fixing balloon on the hollow tube body is adjusted, the capillary is released by the unwinding component, allowing the capillary to gradually separate from the outer wall of the hollow tube, giving the capillary some loosening space. Then, adjust the position of the fixing balloon to give it some room to move, making it easier to adapt the position of the fixing balloon to different patients, thus improving the adaptability of the drainage tube. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a minimally invasive pneumothorax drainage tube according to an embodiment of this application; Figure 2 This is a schematic diagram of the structure of the first fixation element in a minimally invasive pneumothorax drainage tube according to an embodiment of this application; Figure 3 yes Figure 2 An enlarged schematic diagram of part A in the middle; Figure 4 This is a schematic diagram of the structure of the fixation groove in a minimally invasive pneumothorax drainage tube according to an embodiment of this application; Figure 5 yes Figure 2 Enlarged schematic diagram of part B in the middle; Figure 6 This is a schematic diagram of the structure of the second fixation element in a minimally invasive pneumothorax drainage tube according to an embodiment of this application.

[0018] Explanation of reference numerals in the attached diagram: 1. Hollow tube body; 2. Puncture guide; 3. Top hole; 4. Side drainage hole; 5. Fixation balloon; 6. Capillary tube; 7. One-way valve; 8. First fastener; 81. Rubber ring; 82. Fixing groove; 83. Sealing space; 84. Sealing groove; 9. Unwinding component; 91. Unwinding reel; 911. First ring; 912. Second ring; 92. Fixing rod; 93. Ring rack; 94. Drive spring; 10. Covered with a thin film; 11. Easy to tear. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0020] This application discloses a minimally invasive pneumothorax drainage tube. (Refer to...) Figure 1 , Figure 2 and Figure 3 The minimally invasive pneumothorax drainage tube includes a hollow tube body 1 and a puncture guide 2 set inside the hollow tube body 1. The hollow tube body 1 is provided with a top hole 3 and a side drainage hole 4. The outer wall of the hollow tube body 1 is covered with a fixation balloon 5. A capillary tube 6 is connected to the fixation balloon 5. A one-way valve 7 for connecting the capillary tube 6 is provided at the end of the capillary tube 6. Reference Figure 2 and Figure 3 The fixed airbag 5 is movably mounted on the hollow tube 1. The fixed airbag 5 moves along the axis of the hollow tube 1. It also includes a first fixing member 8, which is used to fix the fixed airbag 5 to the hollow tube 1 after it moves to the required position. Reference Figure 2 and Figure 3 The capillary tube 6 is spirally wound on the hollow tube body 1. The hollow tube body 1 is provided with an unwinding component 9, which is used to unwind the capillary tube 6 and adapt to the position of the fixed airbag 5 on the hollow tube body 1.

[0021] When using the drainage tube, the depth to which the drainage tube needs to enter the body is first determined based on the patient's physical condition. Then, the position of the fixing balloon 5 on the hollow tube body 1 is adjusted so that the fixing balloon 5 is located at the lesion after the drainage tube port is located, and the fixing balloon 5 is located on the inner wall of the wound. Then, the fixing balloon 5 is fixed on the hollow tube body 1 by the first fixing member 8. As the position of the fixing balloon 5 on the hollow tube body 1 is adjusted, the capillary 6 is released by the unwinding member 9, so that the capillary 6 gradually separates from the outer wall of the hollow tube body 1, so that the capillary 6 has a certain amount of loose space. Then, the position of the fixing balloon 5 is adjusted so that the fixing balloon 5 has a certain amount of movement space, so that the position of the fixing balloon 5 can be adapted to different patients, thereby improving the adaptability of the drainage tube.

[0022] Reference Figure 2 and Figure 3In this embodiment, the first fixing member 8 includes rubber rings 81 disposed at both ends of the fixing airbag 5. The capillary tube 6 passes through the rubber rings 81 and enters between the fixing airbag 5 and the hollow tube 1. The rubber rings 81 are sealed to the fixing airbag 5. The first fixing member 8 also includes fixing grooves 82 formed on the hollow tube 1. When the rubber rings 81 are in their natural state, the diameter of the rubber rings 81 is smaller than the diameter of the hollow tube 1. The fixing grooves 82 are annular and perpendicular to the axial direction of the hollow tube 1. Multiple fixing grooves 82 are formed and evenly arranged along the axial direction of the hollow tube 1. The rubber rings 81 are fitted into the fixing grooves 82. When adjusting the position of the fixing airbag 5 on the hollow tube 1, pull the rubber ring 81 to increase its diameter. Then move the fixing airbag 5 on the hollow tube 1. After the position of the fixing airbag 5 is adjusted, place the rubber ring 81 in the corresponding fixing groove 82. Then connect the one-way valve 7 to the air supply device. The air supply device fills the capillary tube 6 with gas and fills the fixing airbag 5 through the capillary tube 6. The volume of the fixing airbag 5 increases, so that the rubber ring 81 is tightly fitted on the hollow tube 1. Since the diameter of the rubber ring 81 is smaller than the diameter of the hollow tube 1, a sealed connection is achieved between the rubber ring 81 and the hollow tube 1, which facilitates the inflation of the fixing airbag 5.

[0023] Reference Figure 2 and Figure 3 In this embodiment, both sidewalls of the fixing groove 82 are recessed inward to form sealing spaces 83. The vertical cross-section of the sealing space 83 is triangular, and the bottom of the sealing space 83 is flush with the bottom wall of the fixing groove 82. The rubber ring 81 slides into the sealing space 83 and abuts against the bottom and inclined surfaces of the sealing space 83. As air is injected into the fixing airbag 5, the rubber ring 81 is compressed and sealed to the hollow tube 1. When air is injected into the fixing airbag 5, the volume of the fixing airbag 5 expands and pushes the rubber ring 81 to move. The rubber ring 81 moves toward the sealing space 83 and enters the sealing space 83. As air is injected into the fixing airbag 5, the rubber ring 81 is pressed against the sealing space 83 and deformed, further improving the sealing performance between the rubber ring 81 and the hollow tube 1.

[0024] Reference Figure 2 and Figure 3 In this embodiment, the corner of the sealing space 83 is provided with an arc-shaped chamfer, and the inner wall of the fixing airbag 5 abuts against the arc-shaped chamfer. Under the action of the arc-shaped chamfer, the possibility of the tip of the sealing space 83 damaging the fixing airbag 5 is reduced, thereby extending the service life of the fixing airbag 5 and facilitating the sealing of the wound by the fixing airbag 5.

[0025] Reference Figure 4In this embodiment, the two sidewalls of the fixing groove 82 are inclined outwards. Multiple sealing grooves 84 are formed on the inclined sidewalls of the fixing groove 82. The sealing grooves 84 are annular and coaxially arranged with the hollow tube 1, with their diameters gradually increasing. When the fixing airbag 5 is injected with gas and expands, causing the rubber ring 81 to move, it pushes the rubber ring 81 towards the sidewall of the fixing groove 82 and gradually moves towards the sidewall of the fixing groove 82. During this process, the diameter of the rubber ring 81 gradually increases and it fits onto the hollow tube 1, thus improving the sealing performance between the rubber ring 81 and the hollow tube 1. Furthermore, when the rubber ring 81 moves within the fixing groove 82, it fits into the sealing groove 84, reducing the possibility of the rubber ring 81 moving within the inner wall of the fixing groove 82 and thus reducing the possibility of gas leakage through the rubber ring 81.

[0026] Reference Figure 3 In this embodiment, a covering film 10 is provided on the hollow tube 1. The covering film 10 is used to cover the opening of the fixing groove 82. The covering film 10 is provided with an easy-tear slit 11. The easy-tear slit 11 is connected end to end in a ring shape and the plane of the easy-tear slit 11 is perpendicular to the axial direction of the hollow tube 1. Under the action of the covering film 10, the opening of the fixing groove 82 is sealed, thereby reducing the possibility of the fixing groove 82 scratching the patient when the drainage tube enters the patient's body, thus reducing the patient's discomfort. Moreover, under the action of the easy-tear slit 11, it is easy to open the fixing groove 82, thereby facilitating the fixation of the position of the fixing airbag 5.

[0027] Reference Figure 4 , Figure 5 and Figure 6 In this embodiment, the unwinding component 9 includes an unwinding reel 91, which is rotatably mounted on the hollow tube 1. The capillary tube 6 passes through the unwinding reel 91 on the side near the one-way valve 7. The unwinding reel 91 rotates about the axis of the hollow tube 1. The unwinding component 9 also includes a second fixing member, which is used to fix the unwinding reel 91 after the capillary tube 6 is unwound to the required length. When the capillary tube 6 is unwound, the unwinding reel 91 is rotated. When the unwinding reel 91 rotates in the opposite direction, the capillary tube 6 is released, so that the capillary tube 6 has a certain degree of extension and contraction, thereby facilitating the adjustment of the position of the fixed airbag 5.

[0028] Reference Figure 4 , Figure 5 and Figure 6In this embodiment, the unwinding reel 91 includes a first ring 911 and a second ring 912. The first ring 911 is sleeved and fixed on the hollow tube 1, and the second ring 912 is sleeved on the first ring 911. The second ring 912 is rotatably disposed on the first ring 911. Furthermore, the thickness of the second ring 912 is greater than the thickness of the first ring 911. The capillary tube 6 passes through the second ring 912. The second fixing member includes a fixing rod 92 slidably disposed on the first ring 911 and a fixing ring disposed on the second ring 912. The fixing rod 92 is located in the space where the fixing ring is located. The inner ring of the fixing ring is provided with an annular rack 93, and the fixing rod 92 is slidably inserted into the teeth of the annular rack 93. When the capillary tube 6 is unwound, the second ring 912 is rotated. The second ring 912 rotates on the first ring 911. During this process, the second ring 912 drives the capillary tube 6 to move gradually, thereby increasing the pitch between the capillary tubes 6, which facilitates the adjustment of the position of the fixed airbag 5. After the position of the fixed airbag 5 is adjusted, the fixed rod 92 is slid into the annular rack 93, which fixes the second ring 912, thereby fixing the capillary tube 6, which facilitates the drainage operation of the drainage tube.

[0029] Reference Figure 4 , Figure 5 and Figure 6 The second fixing component also includes a driving component for driving the fixing rod 92 to slide and engage with the annular rack 93. The driving component includes a driving spring 94 sleeved on the fixing rod 92. One end of the driving spring 94 is fixedly mounted on the fixing rod 92, and the other end is fixedly mounted on the first ring 911. The driving spring 94 is used to drive the fixing rod 92 to move toward the annular rack 93. Under the action of the spring, the fixing rod 92 is driven to slide into the annular rack 93, thereby fixing the second ring 912 and reducing the possibility of the second ring 912 accidentally rotating during the drainage process.

[0030] Reference Figure 2 To improve the comfort of the drainage tube entering the patient's body, when the fixation bladder 5 is in the contracted state, the fixation bladder 5 fits tightly against the outer wall of the hollow tube body 1.

[0031] The implementation principle of a minimally invasive pneumothorax drainage tube in this application embodiment is as follows: When using the drainage tube, the depth to which the drainage tube needs to enter the body is first determined based on the patient's physical condition. Then, the position of the fixing balloon 5 on the hollow tube body 1 is adjusted so that the fixing balloon 5 is located at the lesion after the drainage tube port is located, and the fixing balloon 5 is located on the inner wall of the wound. Then, the fixing balloon 5 is fixed on the hollow tube body 1 by the first fixing member 8. As the position of the fixing balloon 5 on the hollow tube body 1 is adjusted, the capillary 6 is released by the unwinding member 9, so that the capillary 6 gradually separates from the outer wall of the hollow tube body 1, so that the capillary 6 has a certain amount of loose space. Then, the position of the fixing balloon 5 is adjusted so that the fixing balloon 5 has a certain amount of movement space, so that the position of the fixing balloon 5 can be adapted to different patients, thereby improving the adaptability of the drainage tube.

[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A minimally invasive pneumothorax drainage tube, characterized in that: It includes a hollow tube (1) and a puncture guide (2) disposed inside the hollow tube (1). The hollow tube (1) is provided with a top hole (3) and a side drainage hole (4). The outer wall of the hollow tube (1) is covered with a fixing airbag (5). A capillary tube (6) is connected to the fixing airbag (5). A one-way valve (7) for connecting the capillary tube (6) is provided at the end of the capillary tube (6). The fixed airbag (5) is movably disposed on the hollow tube (1). The fixed airbag (5) moves along the axial direction of the hollow tube (1). It also includes a first fixing member (8). The first fixing member (8) is used to fix the fixed airbag (5) to the hollow tube (1) after it moves to the required position. The capillary tube (6) is spirally wound on the hollow tube body (1), and the hollow tube body (1) is provided with an unwinding member (9). The unwinding member (9) is used to unwind the capillary tube (6) and is adapted to fix the position of the airbag (5) on the hollow tube body (1).

2. The minimally invasive pneumothorax drainage tube according to claim 1, characterized in that: The first fixing member (8) includes rubber rings (81) disposed at both ends of the fixing airbag (5). The capillary tube (6) passes through the rubber rings (81) and enters between the fixing airbag (5) and the hollow tube (1). The rubber rings (81) are sealed to the fixing airbag (5). The first fixing member (8) also includes a fixing groove (82) opened on the hollow tube (1). The fixing groove (82) is annular and perpendicular to the axial direction of the hollow tube (1). Multiple fixing grooves (82) are opened and evenly arranged along the axial direction of the hollow tube (1). The rubber rings (81) are sleeved in the fixing grooves (82).

3. The minimally invasive pneumothorax drainage tube according to claim 2, characterized in that: The two side walls of the fixing groove (82) are recessed inward to form a sealing space (83). The vertical cross section of the sealing space (83) is triangular. The bottom of the sealing space (83) is flush with the bottom wall of the fixing groove (82). The rubber ring (81) slides into the sealing space (83) and abuts against the bottom surface and inclined surface of the sealing space (83). As the fixing airbag (5) injects air, it compresses the rubber ring (81) that enters the sealing space (83), thereby sealing the rubber ring (81) with the hollow tube (1).

4. The minimally invasive pneumothorax drainage tube according to claim 3, characterized in that: The corner of the sealed space (83) is provided with an arc-shaped chamfer, and the inner wall of the fixed airbag (5) abuts against the arc-shaped chamfer.

5. A minimally invasive pneumothorax drainage tube according to claim 2, characterized in that: The two side walls of the fixing groove (82) are inclined outwards. The inclined side walls of the fixing groove (82) are provided with a plurality of sealing grooves (84). The sealing grooves (84) are annular. The plurality of sealing grooves (84) are coaxially arranged with the hollow tube (1) and the diameter of the sealing grooves (84) gradually increases.

6. A minimally invasive pneumothorax drainage tube according to claim 2, characterized in that: A covering film (10) is provided on the hollow tube (1). The covering film (10) is used to cover the opening of the fixing groove (82). An easy-tear seam (11) is provided on the covering film (10). The easy-tear seam (11) is connected end to end in a ring shape and the plane where the easy-tear seam (11) is located is perpendicular to the axial direction of the hollow tube (1).

7. The minimally invasive pneumothorax drainage tube according to claim 1, characterized in that: The unwinding component (9) includes an unwinding reel (91), which is rotatably mounted on the hollow tube (1). The capillary tube (6) passes through the unwinding reel (91) on the side near the one-way valve (7). The unwinding reel (91) rotates about the axis of the hollow tube (1). The unwinding component (9) also includes a second fixing member, which is used to fix the unwinding reel (91) after the capillary tube (6) has been unwound to the required length.

8. A minimally invasive pneumothorax drainage tube according to claim 7, characterized in that: The unwinding reel (91) includes a first ring (911) and a second ring (912). The first ring (911) is sleeved and fixed on the hollow tube (1). The second ring (912) is sleeved on the first ring (911). The second ring (912) is rotatably disposed on the first ring (911). The capillary tube (6) passes through the second ring (912). The second fixing member includes a fixing rod (92) slidably disposed on the first ring (911) and a fixing ring disposed on the second ring (912). The fixing rod (92) is located in the space where the fixing ring is located. The inner ring of the fixing ring is provided with an annular rack (93). The fixing rod (92) is slidably inserted into the teeth of the annular rack (93). It also includes a driving member for driving the fixing rod (92) to slide and engage the annular rack (93).

9. A minimally invasive pneumothorax drainage tube according to claim 8, characterized in that: The driving component includes a driving spring (94) sleeved on the fixed rod (92). One end of the driving spring (94) is fixedly mounted on the fixed rod (92), and the other end is fixedly mounted on the first ring (911). The driving spring (94) is used to drive the fixed rod (92) to move toward the annular rack (93).

10. A minimally invasive pneumothorax drainage tube according to claim 1, characterized in that: When the fixed airbag (5) is in a contracted state, the fixed airbag (5) is tightly attached to the outer wall of the hollow tube (1).

Images