Chest drainage tube and installation device thereof
By designing a chest drainage tube including an upper drainage tube and a lower drainage tube, the problem of difficulty in taking into account both gas and liquid drainage in the prior art is solved, and effective drainage of gas and liquid in the chest is achieved, which promotes wound healing and reduces the risk of postoperative infection.
Patent Information
- Application Number
- CN202421732890.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-07-22
AI Technical Summary
The existing thoracic drainage tubes are difficult to take into account the drainage effect of gas and liquid in the thoracic cavity, and the thickness of the traditional drainage tubes makes it difficult for surgical incisions to heal.
A thoracic drainage tube including an upper drainage tube and a lower drainage tube is designed, which is placed into the thoracic cavity through a needle hole, the tube head of the upper drainage tube is placed on the top of the pleura, and the tube head of the lower drainage tube is placed at the posterior costopharyngeal angle, taking into account the drainage of gas and liquid.
It achieves effective drainage of gas and fluid in the chest cavity, reduces the number of wounds, promotes wound healing, and reduces the risk of postoperative infection.
Smart Images
Figure CN223026440U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, in particular to a thoracic drainage tube and an installation device thereof. Background Art
[0002] At present, after single-port thoracoscopic surgery, a drainage tube needs to be indwelled in the chest cavity to guide the gas and liquid accumulated in the chest cavity after the operation to the outside of the body, prevent postoperative infection, and promote wound healing. In the prior art, a closed thoracic drainage tube is usually indwelled in the chest cavity after single-port thoracoscopic surgery, and the external end of the closed thoracic drainage tube is connected to a water-seal bottle. During use, the closed thoracic drainage tube needs to be led out from the surgical incision, so that the surgical incision cannot be completely sutured, and a drainage opening needs to be left, which affects the healing of the surgical incision. The diameter of the traditional closed thoracic drainage tube is usually 8 mm to 10 mm. The relatively thick closed thoracic drainage tube will result in a relatively large drainage opening, and the wound is not easy to heal.
[0003] With the gradual maturity of surgical techniques and the continuous development of fast-track surgery, a thoracic drainage puncture tube can also be indwelled in the chest cavity after single-port thoracoscopic surgery. During use, the thoracic drainage puncture tube can be led out from other positions outside the surgical incision, so that the surgical incision can be directly and completely sutured, and the surgical incision can heal better. The thoracic drainage puncture tube is relatively thin and can be inserted into the chest cavity through a single puncture hole. However, the drainage effect of the thoracic drainage puncture tube on the gas and liquid in the chest cavity depends on the position of its tube head in the chest cavity. After surgery, the gas in the chest cavity usually accumulates at the apex of the pleura, and the liquid usually accumulates at the posterior costophrenic angle. If the tube head is placed at the apex of the pleura, the thoracic drainage puncture tube has a better drainage effect on the gas in the chest cavity and a worse drainage effect on the liquid in the chest cavity; if the tube head is placed at the posterior costophrenic angle, the thoracic drainage puncture tube has a better drainage effect on the liquid in the chest cavity and a worse drainage effect on the gas in the chest cavity. Therefore, the thoracic drainage puncture tube often cannot balance the drainage effects on the gas and liquid in the chest cavity. If two thoracic drainage puncture tubes are used simultaneously to balance the drainage effects on the gas and liquid in the chest cavity, the number of wounds will increase, and the difficulty of postoperative care will also increase. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a thoracic drainage tube and an installation device thereof to solve at least one of the above technical problems existing in the prior art.
[0005] To solve the above technical problems, the utility model provides a thoracic drainage tube, comprising: a body and an in-vivo drainage tube;
[0006] Two in-vivo drainage tubes are provided at the in-vivo end of the body. The in-vivo drainage tubes are communicated with the body and are used for draining gas and liquid in the thoracic cavity. When in use, the body is inserted into the thoracic cavity through a single puncture hole. Gas and liquid in the thoracic cavity are introduced through the in-vivo drainage tubes, and the body guides the gas and liquid in the thoracic cavity to the outside of the body.
[0007] The two in-vivo drainage tubes are respectively an upper drainage tube and a lower drainage tube. When in use, the tube head of the upper drainage tube is placed at the apex of the pleura, which is convenient for draining gas in the thoracic cavity. Gas in the thoracic cavity usually accumulates at the apex of the pleura, and the upper drainage tube can more fully guide the accumulated gas in the thoracic cavity to the outside of the body, and has a good drainage effect on the gas in the thoracic cavity. The tube head of the lower drainage tube is placed at the posterior costophrenic angle, which is convenient for draining liquid in the thoracic cavity. Liquid in the thoracic cavity usually accumulates at the posterior costophrenic angle, and the lower drainage tube can more fully guide the accumulated liquid in the thoracic cavity to the outside of the body, and has a good drainage effect on the liquid in the thoracic cavity.
[0008] In this application, the thoracic drainage tube is inserted into the thoracic cavity through a single puncture hole, and the tube heads of the upper drainage tube and the lower drainage tube are respectively placed at the apex of the pleura and the posterior costophrenic angle in the thoracic cavity, taking into account the drainage effects of gas and liquid in the thoracic cavity. The accumulated gas and liquid in the thoracic cavity can be more fully guided to the outside of the body, and at the same time, the number of wounds will not be increased, postoperative infection is prevented, and wound healing is promoted.
[0009] Further, an upper inner cavity and a lower inner cavity are provided in the body, and the upper inner cavity and the lower inner cavity are separated from each other.
[0010] The upper inner cavity is communicated with the upper drainage tube, and is used for guiding the gas and liquid introduced from the upper drainage tube to the outside of the body through the upper inner cavity.
[0011] The lower inner cavity is communicated with the lower drainage tube, and is used for guiding the liquid and gas introduced from the lower drainage tube to the outside of the body through the lower inner cavity.
[0012] Further, two outlet tubes are provided at the outside end of the body. The outlet tubes are communicated with the body and are used for discharging gas and liquid in the body.
[0013] The two outlet tubes are respectively an upper outlet tube and a lower outlet tube.
[0014] The upper outlet tube is communicated with the upper inner cavity and is used for discharging gas and liquid in the upper inner cavity.
[0015] The lower outlet tube is communicated with the lower inner cavity and is used for discharging liquid and gas in the lower inner cavity. Further, a threaded interface is provided at the tube head of the outlet tube, and the outlet tube is connected with a drainage bag through the threaded interface. Gas and liquid discharged from the outlet tube are collected in the drainage bag.
[0016] Further, a switching valve is installed on the outlet pipe for controlling the on-off of the air flow and liquid flow in the outlet pipe. When the switching valve is closed, the in-vivo drainage tube stops draining the gas and liquid in the thoracic cavity;
[0017] When replacing the drainage bag, the switching valve is closed to prevent external gas from entering the thoracic cavity and causing pneumothorax;
[0018] The switching valves are installed on both the upper outlet pipe and the lower outlet pipe, and the on-off of the air flow and liquid flow in the upper outlet pipe and the lower outlet pipe are separately controlled by the two switching valves. Further, the tube head of the in-vivo drainage tube is processed by chamfering or rounding to prevent the tube head of the in-vivo drainage tube from damaging the thoracic cavity and the lung.
[0019] Further, an inlet is provided at the tube head of the in-vivo drainage tube, and the gas and liquid in the thoracic cavity are introduced from the inlet, and the gas and liquid in the thoracic cavity are guided to the outside through the main body;
[0020] The gas in the thoracic cavity usually accumulates at the apex of the pleura, and thus the gas in the thoracic cavity is usually introduced from the inlet at the tube head of the upper drainage tube;
[0021] The liquid in the thoracic cavity usually accumulates in the posterior costophrenic angle, and thus the liquid in the thoracic cavity is usually introduced from the inlet at the tube head of the lower drainage tube.
[0022] Further, a plurality of side holes are provided on the tube wall of the in-vivo drainage tube, and the gas and liquid around the in-vivo drainage tube in the thoracic cavity are introduced from the side holes, and the gas and liquid around the in-vivo drainage tube in the thoracic cavity are guided to the outside through the main body, so that the gas and liquid accumulated in the thoracic cavity can be more fully guided to the outside, improving the drainage effect of the thoracic cavity drainage tube; at the same time, it prevents the in-vivo drainage tube from losing its drainage function when the inlet or a certain side hole is blocked.
[0023] Further, the length of the upper drainage tube is greater than the length of the lower drainage tube.
[0024] Further, the thoracic cavity drainage tube is a flexible tube, which is convenient for adjusting the position of the in-vivo drainage tube in the thoracic cavity and reducing the damage of the thoracic cavity drainage tube to the thoracic cavity and the drainage opening.
[0025] In a second aspect, the present utility model provides an installation device for a thoracic cavity drainage tube as described above, comprising: a guide wire and a main sheath;
[0026] The guide wire is inserted into the thoracic cavity through a puncture needle for guiding the thoracic cavity drainage tube into the thoracic cavity;
[0027] The main sheath is sleeved on the two in-vivo drainage tubes. The head of the main sheath is conical and is used for the two in-vivo drainage tubes to be inserted into the thoracic cavity through one puncture hole.
[0028] During use, the puncture needle is inserted into the thoracic cavity from a designated position, the guide wire is inserted into the thoracic cavity through the puncture needle, and the puncture needle is withdrawn; the main sheath is sleeved on the two in-vivo drainage tubes, and then the external end of the guide wire is inserted into the thoracic cavity drainage tube through the through hole at the head of the main sheath, penetrates into the thoracic cavity drainage tube from the inlet of the upper drainage tube, and exits from the upper outlet tube; under the guidance of the guide wire, the upper drainage tube and the lower drainage tube are inserted into the thoracic cavity by using the main sheath; after the upper drainage tube and the lower drainage tube are inserted into the thoracic cavity, the guide wire is withdrawn from the body, the main sheath is withdrawn from the thoracic cavity, and then taken out of the thoracic cavity from the surgical incision; adjust the positions of the upper drainage tube and the lower drainage tube in the thoracic cavity, place the tube head of the upper drainage tube at the top of the pleura, and place the tube head of the lower drainage tube at the posterior costophrenic angle; after the insertion is completed, fix the body on the skin.
[0029] Adopting the above technical solution, the utility model has the following beneficial effects:
[0030] A thoracic cavity drainage tube and its installation device provided by the utility model can be inserted into the thoracic cavity through one puncture hole, without increasing the number of wounds. At the same time, it takes into account the drainage effects of gas and liquid in the thoracic cavity, can more fully guide the gas and liquid in the thoracic cavity to the outside of the body, prevent postoperative infection, and promote wound healing. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required to be used in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0032] Figure 1 It is a schematic structural diagram of the thoracic cavity drainage tube provided by the embodiment of the present utility model;
[0033] Figure 2 For Figure 1 The partial enlarged view at A shown;
[0034] Figure 3 For Figure 1 The schematic structural diagram of the switch valve shown;
[0035] Figure 4 For Figure 1 The schematic diagram of the thoracic cavity drainage tube left in the thoracic cavity shown;
[0036] Figure 5 Schematic diagram of the structure of a thoracic drainage tube provided by another embodiment of the present utility model;
[0037] Figure 6 For Figure 5 Partial enlarged view at position B shown;
[0038] Figure 7 Schematic diagram of the structure of a thoracic drainage tube and its installation device provided by yet another embodiment of the present utility model;
[0039] Figure 8 For Figure 7 Schematic diagram of the guide wire being inserted into the thoracic cavity shown;
[0040] Figure 9 For Figure 7 Schematic diagram of the external end of the guide wire passing through the main sheath and the upper drainage tube shown;
[0041] Figure 10 For Figure 7 Schematic diagram of the upper drainage tube and the lower drainage tube being inserted into the thoracic cavity using the main sheath shown;
[0042] Figure 11 For Figure 7 Schematic diagram of the guide wire and the main sheath being withdrawn shown;
[0043] Figure 12 For Figure 7 Schematic diagram of the upper drainage tube and the lower drainage tube adjusting their positions in the thoracic cavity shown.
[0044] Reference numerals:
[0045] 1 - Body; 11a - Upper drainage tube; 11b - Lower drainage tube; 111 - Inlet; 112 - Side hole; 12a - Upper inner cavity; 12b - Lower inner cavity; 13a - Upper outlet tube; 13b - Lower outlet tube; 131 - Switch valve; 132 - Threaded interface; 2 - Guide wire; 3 - Main sheath. Detailed implementation manners
[0046] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.
[0047] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0048] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "coupling" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0049] The following further explains and illustrates the present utility model in conjunction with specific embodiments.
[0050] It should also be noted that the following specific embodiments or specific implementation manners are a series of optimized setting manners listed by the present utility model to further explain the specific content of the utility model, and these setting manners can be combined with each other or used in association with each other.
[0051] Embodiment 1
[0052] As Figures 1-4 shown, a thoracic drainage tube provided in this embodiment includes: a body 1 and an in-vivo drainage tube; two in-vivo drainage tubes are provided at the in-vivo end of the body 1, and the in-vivo drainage tubes are communicated with the body 1 for draining gas and liquid in the thoracic cavity. When in use, the body 1 is inserted into the thoracic cavity through a single puncture hole, and the gas and liquid in the thoracic cavity are introduced from the in-vivo drainage tubes, and the gas and liquid in the thoracic cavity are guided to the outside through the body 1; the two in-vivo drainage tubes are respectively an upper drainage tube 11a and a lower drainage tube 11b. When in use, the tube head of the upper drainage tube 11a is placed at the apex of the pleura to facilitate the drainage of gas in the thoracic cavity. The gas in the thoracic cavity usually accumulates at the apex of the pleura, and the upper drainage tube 11a can more fully guide the accumulated gas in the thoracic cavity to the outside, and has a better drainage effect on the gas in the thoracic cavity; the tube head of the lower drainage tube 11b is placed at the posterior costophrenic angle to facilitate the drainage of liquid in the thoracic cavity. The liquid in the thoracic cavity usually accumulates at the posterior costophrenic angle, and the lower drainage tube 11b can more fully guide the accumulated liquid in the thoracic cavity to the outside, and has a better drainage effect on the liquid in the thoracic cavity.
[0053] In this application, a thoracic drainage tube is inserted into the thoracic cavity through a single puncture hole. The tube heads of the upper drainage tube 11a and the lower drainage tube 11b are respectively placed at the apex of the pleura and the posterior costophrenic angle in the thoracic cavity, taking into account the drainage effects of both gas and liquid in the thoracic cavity, and can more fully guide the accumulated gas and liquid in the thoracic cavity to the outside of the body. At the same time, it will not increase the number of wounds, prevent postoperative infection, and promote wound healing.
[0054] On the basis of the above technical solution, further preferably, an upper inner cavity 12a and a lower inner cavity 12b are provided in the body 1, and the upper inner cavity 12a and the lower inner cavity 12b are separated from each other; the upper inner cavity 12a is communicated with the upper drainage tube 11a, and is used for guiding the gas and liquid introduced from the upper drainage tube 11a to the outside of the body through the upper inner cavity 12a; the lower inner cavity 12b is communicated with the lower drainage tube 11b, and is used for guiding the liquid and gas introduced from the lower drainage tube 11b to the outside of the body through the lower inner cavity 12b.
[0055] Further, two outlet tubes are provided at the outer end of the body 1. The outlet tubes are communicated with the body 1 and are used for discharging the gas and liquid in the body 1; the two outlet tubes are respectively an upper outlet tube 13a and a lower outlet tube 13b; the upper outlet tube 13a is communicated with the upper inner cavity 12a and is used for discharging the gas and liquid in the upper inner cavity 12a; the lower outlet tube 13b is communicated with the lower inner cavity 12b and is used for discharging the liquid and gas in the lower inner cavity 12b.
[0056] In this embodiment, a threaded interface 132 is provided at the tube head of the outlet tube. The outlet tube is connected to the drainage bag through the threaded interface 132, and the gas and liquid discharged from the outlet tube are collected in the drainage bag.
[0057] Refer to Figure 3 As shown, more preferably, a switch valve 131 is installed on the outlet tube to control the on-off of the air flow and liquid flow in the outlet tube. When the switch valve 131 is closed, the in-vivo drainage tube stops draining the gas and liquid in the thoracic cavity; when replacing the drainage bag, the switch valve 131 is closed to prevent the gas outside the body from entering the thoracic cavity and causing pneumothorax; the switch valve 131 is installed on both the upper outlet tube 13a and the lower outlet tube 13b, and the on-off of the air flow and liquid flow in the upper outlet tube 13a and the lower outlet tube 13b is respectively controlled by the two switch valves 131.
[0058] Refer to Figure 2 As shown, more preferably, the tube head of the in-vivo drainage tube is processed by chamfering or rounding to prevent the tube head of the in-vivo drainage tube from damaging the thoracic cavity and the lung.
[0059] Furthermore, the tube head of the in-vivo drainage tube is provided with an inlet 111. The gas and liquid in the thoracic cavity are introduced from the inlet 111 and guided to the outside of the body through the body 1. The gas in the thoracic cavity usually accumulates at the apex of the pleura, so the gas in the thoracic cavity is usually introduced from the inlet 111 at the tube head of the upper drainage tube 11a. The liquid in the thoracic cavity usually accumulates in the posterior costophrenic angle, so the liquid in the thoracic cavity is usually introduced from the inlet 111 at the tube head of the lower drainage tube 11b. In this embodiment, the diameter of the in-vivo drainage tube is about 2 mm. The tube head of the in-vivo drainage tube is processed by chamfering or rounding to form a conical structure, and the inlet 111 is close to 1 mm.
[0060] Referring to Figure 4 As shown, more preferably, the length of the upper drainage tube 11a is greater than the length of the lower drainage tube 11b. The thoracic drainage tube is usually inserted into the thoracic cavity through a puncture hole at the midaxillary line between the 7th or 8th intercostal space. Therefore, the length of the upper drainage tube 11a needs to be greater than the length of the lower drainage tube 11b. The length of the upper drainage tube 11a is usually twice the length of the lower drainage tube 11b. In this embodiment, the length of the upper drainage tube 11a is 30 cm, and the length of the lower drainage tube 11b is 15 cm.
[0061] In addition, the thoracic drainage tube is a flexible tube, which is convenient for adjusting the position of the in-vivo drainage tube in the thoracic cavity and reducing the damage of the thoracic drainage tube to the thoracic cavity and the drainage opening.
[0062] The utility model can insert the thoracic drainage tube into the thoracic cavity through one puncture hole, without increasing the number of wounds. At the same time, it takes into account the drainage effect of the gas and liquid in the thoracic cavity, can more fully guide the gas and liquid in the thoracic cavity to the outside of the body, prevent postoperative infection, and promote wound healing.
[0063] Embodiment 2
[0064] This embodiment is basically the same as Embodiment 1, except that:
[0065] As Figure 5 、 Figure 6 shown, in this embodiment, a plurality of side holes 112 are provided on the tube wall of the in-vivo drainage tube. The gas and liquid around the in-vivo drainage tube in the thoracic cavity are introduced from the side holes 112 and guided to the outside of the body through the body 1, which can more fully guide the accumulated gas and liquid in the thoracic cavity to the outside of the body, improving the drainage effect of the thoracic drainage tube; at the same time, preventing the in-vivo drainage tube from losing its drainage function when the inlet 111 or a certain side hole 112 is blocked.
[0066] Embodiment 3
[0067] As Figures 7-12 shown, an installation device for a thoracic drainage tube as described above provided in this embodiment includes: a guide wire 2 and a main sheath 3; the guide wire 2 is inserted into the thoracic cavity through a puncture needle and is used to guide the thoracic drainage tube into the thoracic cavity; the main sheath 3 is sleeved on the two in-vivo drainage tubes, and the head of the main sheath 3 is conical and is used for the two in-vivo drainage tubes to be inserted into the thoracic cavity through one puncture hole; in this embodiment, the texture of the main sheath 3 is slightly hard.
[0068] During use, the puncture needle is usually inserted into the thoracic cavity from the midaxillary line between the 7th or 8th intercostal space, the guide wire 2 is inserted into the thoracic cavity through the puncture needle, and the puncture needle is withdrawn; the main sheath 3 is sleeved on the two in-vivo drainage tubes, and then the external end of the guide wire 2 is inserted into the thoracic drainage tube through the through hole at the head of the main sheath 3, through the inlet 111 of the upper drainage tube 11a, and out through the upper outlet tube 13a; under the guidance of the guide wire 2, the upper drainage tube 11a and the lower drainage tube 11b are inserted into the thoracic cavity by using the main sheath 3; after the upper drainage tube 11a and the lower drainage tube 11b are inserted into the thoracic cavity, the guide wire 2 is withdrawn from the body, the main sheath 3 is withdrawn from the thoracic cavity, and then taken out of the thoracic cavity from the surgical incision; the positions of the upper drainage tube 11a and the lower drainage tube 11b in the thoracic cavity are adjusted, the tube head of the upper drainage tube 11a is placed at the pleural apex, and the tube head of the lower drainage tube 11b is placed at the posterior costophrenic angle; after the placement is completed, the body 1 is fixed on the skin. The thoracic drainage tube usually needs to be inserted into the thoracic cavity under the monitoring of a thoracoscope during the operation.
[0069] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A chest drainage tube, characterized in that: Body and internal drainage tubes; Two internal drainage tubes are arranged at one end of the body, and the internal drainage tubes are connected to the body and used for draining gas and liquid in the chest cavity. When in use, the body is inserted into the chest cavity through a needle hole, and the gas and liquid in the chest cavity are introduced from the internal drainage tubes, and the gas and liquid in the chest cavity are guided to the outside of the body through the body; The two internal drainage tubes are respectively an upper drainage tube and a lower drainage tube. When in use, the tube head of the upper drainage tube is placed on the top of the pleura, and the tube head of the lower drainage tube is placed on the posterior costophrenic angle.
2. The chest drainage tube according to claim 1, characterized in that: An upper inner cavity and a lower inner cavity are provided in the body, and the upper inner cavity and the lower inner cavity are separated from each other; The upper inner cavity is in communication with the upper drainage tube, and is used to guide the gas and liquid introduced from the upper drainage tube to the outside of the body through the upper inner cavity; The lower inner cavity is communicated with the lower drainage tube, and is used for guiding the liquid and gas introduced from the lower drainage tube to the outside of the body through the lower inner cavity.
3. The chest drainage tube according to claim 2, characterized in that: Two outlet pipes are arranged at one end outside the body, the outlet pipes are connected to the body and are used for outlet of gas and liquid in the body; The two outlet pipes are an upper outlet pipe and a lower outlet pipe respectively. The upper outlet pipe is communicated with the upper inner cavity, and the lower outlet pipe is communicated with the lower inner cavity.
4. The chest drainage tube according to claim 3, characterized in that: The pipe head of the outlet tube is provided with a threaded interface, and the outlet tube is connected to the drainage bag through the threaded interface, and the gas and liquid discharged from the outlet tube are collected in the drainage bag.
5. The chest drainage tube according to claim 4, characterized in that: The outlet tube is provided with a switch valve for controlling the on-off of the air flow and the liquid flow in the outlet tube. When the switch valve is closed, the internal drainage tube stops draining the gas and liquid in the chest cavity. When replacing the drainage bag, the switch valve is closed to prevent the gas outside the body from entering the chest cavity and causing pneumothorax.
6. The chest drainage tube according to claim 1, characterized in that: The tube head of the internal drainage tube is processed by chamfering or rounding.
7. The chest drainage tube according to claim 1, characterized in that: The tube head of the internal drainage tube is provided with an introduction port, and the gas and liquid in the chest cavity are introduced from the introduction port, and the gas and liquid in the chest cavity are guided to the outside of the body through the main body.
8. The chest drainage tube according to claim 1, characterized in that: The tube wall of the internal drainage tube is provided with a plurality of side holes, and the gas and liquid around the internal drainage tube in the chest cavity are introduced from the side holes, and the gas and liquid around the internal drainage tube in the chest cavity are guided to the outside of the body through the main body.
9. The chest drainage tube according to claim 1, characterized in that: The length of the upper drainage tube is greater than that of the lower drainage tube.
10. A chest drainage tube installation device according to any one of claims 1 to 9, characterized in that: include: Guidewire and main sheath; The guide wire is inserted into the chest cavity through the puncture needle to guide the chest drainage tube to be inserted into the chest cavity; The main sheath is sleeved on the two internal drainage tubes, and the head of the main sheath is cone-shaped, and is used for inserting the two internal drainage tubes into the chest cavity through one needle hole.