Drainage tube for the chest and chest drainage system with a drainage tube for the chest

Abstract

The present application provides a chest drainage tube and a chest drainage system with the chest drainage tube, comprising a collecting tube and a discharge tube integrally extended from the collecting tube, wherein at least a first drainage channel and at least a second drainage channel are formed in the collecting tube, the first drainage channel is used for draining liquid in the chest cavity, and the second drainage channel is used for draining gas in the chest cavity; a discharge channel is formed in the discharge tube, the discharge channel is communicated with the first drainage channel and the second drainage channel, so as to discharge the liquid and / or the gas entering through the first drainage channel and the second drainage channel to the outside of the body; the collecting tube comprises a closed section and an open section, the open section is integrally extended from one end of the closed section, and the closed section is located between the discharge tube and the open section; the first drainage channel and the second drainage channel located in the closed section are closed channel structures, and the first drainage channel and the second drainage channel located in the open section are open channel structures, so that the medium in the chest cavity enters the corresponding drainage channel through the open section.

Description

Technical Field

[0001] This invention relates to the field of medical devices, and more particularly to a chest drainage tube and a chest drainage system with the chest drainage tube. Background Technology

[0002] Thoracic drainage is a crucial step in the treatment of post-thoracic surgery conditions such as pneumothorax, hemothorax, and pleural effusion. Its core purpose is to effectively drain gas and fluid from the pleural cavity, promote lung re-expansion, and restore negative pressure within the pleural cavity. The effectiveness of drainage directly affects the patient's recovery speed and the incidence of complications.

[0003] Currently, most chest drainage tubes used clinically are single-lumen tubes, meaning a single tube with multiple side holes to drain both gas and fluid simultaneously through the same channel. However, this structure has the following technical drawbacks in practical applications: First, existing chest drainage tubes suffer from interference between air and fluid drainage. This is because gases and fluids have different physical properties: gases are lighter and rise, while fluids are heavier and sink. In single-lumen drainage, gas tends to enter through the proximal side hole (upper chest cavity), while fluid enters through the distal side hole (lower chest cavity), with both sharing the same channel. When the fluid flow rate is high, it can obstruct the gas passage, preventing proper air drainage and leading to residual pneumothorax. Conversely, a large amount of gas passing through can also affect fluid drainage efficiency.

[0004] Secondly, existing chest drainage tubes cannot simultaneously accommodate both drainage positions. Ideally, for gas drainage, the catheter tip should be placed at the top of the chest cavity, while for fluid drainage, it should be placed at the bottom. However, single-lumen catheters can only be placed in one location, making it impossible to simultaneously accommodate both ends. Clinically, compromise positions are often used, resulting in poor air or fluid drainage, requiring multiple adjustments to the catheter position, increasing patient discomfort and the risk of infection.

[0005] Third, existing chest drainage tubes have the risk of poor drainage and blockage. Specifically, when draining fluid with a single-lumen catheter, blood clots or fibrin can easily block the side holes, affecting the drainage effect. When draining gas, if the side holes of the catheter are covered by liquid or tissue, the gas cannot enter the catheter, leading to drainage failure.

[0006] Furthermore, current techniques require the insertion of multiple catheters. In some complex cases, to address the aforementioned issues, doctors must insert two drainage tubes simultaneously: one at the top of the chest cavity for air drainage and the other at the bottom for fluid drainage. This not only increases surgical trauma and patient suffering but also raises the risk of infection and medical costs.

[0007] To address the aforementioned issues, some improved drainage tubes have attempted to adopt a dual-lumen structure, which involves setting two isolated channels within a single catheter for air and fluid drainage, respectively. However, existing dual-lumen tubes still suffer from problems such as complex structure, excessively large outer diameter, and difficulty in insertion. Furthermore, the lack of coordinated design between the two channels prevents true functional integration. Summary of the Invention

[0008] A key advantage of this invention is that it provides a chest drainage tube and a chest drainage system with the chest drainage tube. By setting a support structure and multiple fluid drainage channels inside the tube, the effective drainage area is increased and the channels are kept from collapsing when bent or compressed, thereby reducing the probability of tube blockage and the risk of drainage failure.

[0009] Another advantage of this invention is that it provides a chest drainage tube and a chest drainage system with the chest drainage tube. By setting a closed section and an open section, the channel near the drainage end remains closed and the flow is controllable, while the channel near the inner end of the pleural cavity forms an opening to meet the "top gas trapping / bottom fluid drainage" arrangement requirement, reducing the need for repeated adjustments to the tube position. A key advantage of this invention is that it provides a multi-channel shunt chest drainage tube, which allows gas and liquid to enter and exit through different channels, thereby reducing mutual interference and improving the efficiency of air and fluid drainage.

[0010] A key advantage of this invention is that it provides a chest drainage tube and a chest drainage system with the chest drainage tube. By setting up a first drainage channel and a second drainage channel that are independently connected to each other within the same chest drainage tube, gas and liquid can be collected and discharged separately, thereby reducing gas-liquid interference and improving the efficiency of gas and fluid drainage.

[0011] A key advantage of this invention is that it provides a chest drainage tube and a chest drainage system with the chest drainage tube. By setting multiple first drainage channels and forming a channel layout that surrounds or runs parallel to the second drainage channel, the effective drainage cross-sectional area and the number of drainage inlets are increased, making the drainage more thorough and stable, and reducing drainage obstruction caused by local adhesion or deposition.

[0012] A key advantage of this invention is that it provides a chest drainage tube and a chest drainage system with the chest drainage tube. By setting a support wall (e.g., a cross support wall) inside the collecting tube to divide the first drainage channel into multiple channel structures, the tube can maintain the channel opening when it is bent, compressed or the body position changes, reducing the risk of channel collapse and tube blockage and improving drainage reliability.

[0013] A key advantage of this invention is that it provides a chest drainage tube and a chest drainage system with the chest drainage tube. By setting up a closed section and an open section, and setting an opening structure in the open section to communicate with the gas / liquid in the chest cavity, a spatial partition drainage effect of "capturing gas at the top and draining fluid at the bottom" can be formed after the tube is placed, reducing the need for repeated tube position adjustments and improving the convenience of clinical operation and patient comfort.

[0014] A key advantage of this invention is that it provides a chest drainage tube and a chest drainage system with the chest drainage tube, which can be used in conjunction with a negative pressure / digital chest drainage device to form a chest drainage system, thereby enabling adjustable negative pressure control, drainage process monitoring and data management, and further improving the stability and controllability of drainage treatment.

[0015] Another advantage of the present invention is that the chest drainage tube can be used in conjunction with a digital / negative pressure drainage device to form a chest drainage system, realizing extended capabilities such as adjustable negative pressure, drainage volume / leakage monitoring and data management (for system function examples, please refer to the adjustable negative pressure and digital display of leakage rate described in the brochure).

[0016] According to one aspect of the present invention, a thoracic drainage tube of the present invention, capable of achieving the aforementioned and other objects and advantages, includes a collecting tube and an outlet tube integrally extending from the collecting tube, wherein at least one first drainage channel and at least one second drainage channel are formed within the collecting tube, the first drainage channel being used to drain intrapleural fluid and the second drainage channel being used to drain intrapleural gas; an outlet tube is formed within the outlet tube, the outlet channel communicating with the first and second drainage channels to discharge fluid and / or gas entering through the first and second drainage channels to the outside; the collecting tube includes a closed section and an open section, the open section integrally extending from one end of the closed section, the closed section being located between the outlet tube and the open section; the first and second drainage channels located in the closed section are closed channel structures, and the first and second drainage channels located in the open section are open channel structures, so that intrapleural media enter the corresponding drainage channel through the open section.

[0017] According to one embodiment of the present invention, the open section is provided with an opening structure for communicating with gas and fluid in the pleural cavity. The opening structure includes at least one vent hole disposed at a position corresponding to the second drainage channel, and at least one fluid inlet disposed at a position corresponding to the first drainage channel.

[0018] According to one embodiment of the present invention, the vent and the inlet are arranged longitudinally along the manifold, such that after the tube is inserted, the area near the top of the pleural cavity is connected to the air accumulation area through the vent, and the area near the bottom of the pleural cavity is connected to the fluid accumulation area through the inlet.

[0019] According to one embodiment of the present invention, the manifold has a double-wall structure, including an inner wall, an outer wall, and at least one support wall located between the inner wall and the outer wall; The first drainage channel is formed between the inner and outer pipe walls, the second drainage channel is formed on the inner side of the inner pipe wall, and adjacent first drainage channels are separated by a support wall.

[0020] According to one embodiment of the present invention, the support wall has a cross-shaped structure to form a first drainage channel with four cross channels between the inner tube wall and the outer tube wall.

[0021] According to one embodiment of the present invention, there are multiple first drainage channels and one second drainage channel, with the multiple first drainage channels arranged around the outside of the second drainage channel.

[0022] According to one embodiment of the present invention, the first drainage channel and the second drainage channel are arranged side by side.

[0023] According to one embodiment of the present invention, the open section includes at least two open section wall units and a drainage channel formed between adjacent open section wall units, the drainage channel connecting a first drainage channel and the outside of the open section, so as to drain intrapleural fluid to the first drainage channel.

[0024] According to one embodiment of the present invention, the drainage channel extends from the port of the open section to the closed section.

[0025] According to one embodiment of the present invention, the vent is disposed in the proximal region of the open section and is configured as a single hole or a multi-hole array along the circumferential direction, and the liquid inlet is disposed in the distal region of the open section.

[0026] According to one embodiment of the present invention, the vent is any one or more of an elliptical hole, a circular hole, or an oblong hole.

[0027] According to one embodiment of the present invention, the liquid inlet opening is one or more combinations of side holes, oblique holes or end holes, and there are multiple liquid inlet openings that are evenly distributed circumferentially, or divided into at least two groups in the axial direction.

[0028] According to one embodiment of the present invention, the first drainage channel located in the closed section extends obliquely from the outside to the inside and is connected to the discharge channel.

[0029] According to one embodiment of the present invention, the chest drainage tube is made of silicone material.

[0030] According to another aspect of this application, this application further provides a chest drainage system with a chest drainage tube, comprising: The chest drainage tube, drainage connection tube, drainage bottle, and negative pressure and / or digital drainage host as described in any of the preceding items; The negative pressure and / or digital drainage unit is used to provide adjustable negative pressure, digitally display the leakage rate and generate data curves, monitor stage and / or total drainage volume and drainage time, and support network or Bluetooth data transmission.

[0031] The further objects and advantages of the invention will become fully apparent from the following description and accompanying drawings.

[0032] These and other objects, features and advantages of the present invention will become fully apparent from the following detailed description and accompanying drawings. Attached Figure Description

[0033] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. In the drawings, unless otherwise specified, the same reference numerals are used to denote the same parts. Wherein: Figure 1A and Figure 1B This is a schematic diagram of the overall structure of a chest drainage tube according to a first preferred embodiment of the present invention.

[0034] Figure 2 This is an enlarged schematic diagram of a portion of the structure of the chest drainage tube according to the first preferred embodiment of the present invention.

[0035] Figure 3 This is a cross-sectional view of a partial structure of the chest drainage tube described in the first preferred embodiment of the present invention. Detailed Implementation

[0036] The following description is intended to disclose the present invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0037] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the invention.

[0038] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0039] Refer to the accompanying drawings in this application specification. Figures 1A to 3 As shown in the following description, a chest drainage tube according to a first preferred embodiment of this application includes a collecting tube 10, an outlet tube 20 integrally extending from the collecting tube 10, and further comprising at least one first drainage channel 101 and at least one second drainage channel 102, wherein the at least one first drainage channel 101 and the at least one second drainage channel 102 are formed in the collecting tube 10. The chest drainage tube is used to drain gas and fluid from the pleural cavity to the outside, restore negative pressure in the pleural cavity, and promote lung re-expansion. The at least one second drainage channel 102 is used to collect and drain gas accumulated at the top of the pleural cavity; the at least one first drainage channel 101 is used to drain fluid accumulated at the bottom of the pleural cavity. The fluid and gas accumulated in the pleural cavity are collected in the collecting tube 10 via the first drainage channel 101 and the second drainage channel 102, and then discharged outward through the outlet tube 20.

[0040] Furthermore, the chest drainage tube is further provided with a discharge channel 103, wherein the discharge channel 103 is formed in the discharge tube 20 of the chest drainage tube, and the discharge channel 103 is connected to the first drainage channel 101 and the second drainage channel 102, and the liquid and gas collected in the first drainage channel 101 and the second drainage channel 102 are discharged outward through the discharge channel 103.

[0041] In a specific example of this application, the chest drainage tube is provided with multiple (e.g., three or four) first drainage channels 101 and one second drainage channel 102, and the first drainage channels 101 surround the outside of the second drainage channel 102. That is, the second drainage channel 102 is located inside the first drainage channel 101.

[0042] It is worth mentioning that by setting multiple first drainage channels 101, the effective drainage area and redundant pathways on the liquid side can be increased, so that when some openings are attached to tissues or affected by deposits, the continuity of liquid drainage can still be maintained through other channels, thereby reducing the risk of tube blockage and improving drainage stability.

[0043] Optionally, in another alternative embodiment of this application, the first drainage channel 101 and the second drainage channel 102 of the chest drainage tube are arranged side by side.

[0044] In this preferred embodiment, the first drainage channel 101 is used for liquid drainage, and the second drainage channel 102 is used for gas drainage. Compared with the surrounding multi-cavity design of the first embodiment 1 described above, the parallel dual-cavity design of this preferred embodiment makes it easier to achieve a clearer distinction between upper and lower positions through cross-sectional layout; during tube placement, the opening area corresponding to the second drainage channel 102 can be oriented towards the top of the pleural cavity, and the opening area corresponding to the first drainage channel 101 can be oriented towards the bottom of the pleural cavity to achieve zoned drainage.

[0045] like Figure 3 As shown, the manifold 10 is implemented as a conduit with double-walled tubes, wherein the manifold 10 includes an inner tube wall 11, an outer tube wall 12, and at least one support wall 13 formed between the inner tube wall 11 and the outer tube wall 12, wherein a first drainage channel 101 is formed between the inner tube wall 11 and the outer tube wall 12, and two adjacent first drainage channels 101 are spaced apart by the support wall 13; a second drainage channel 102 is formed inside the inner tube wall 11.

[0046] Preferably, in this preferred embodiment of the present application, the inner wall 11 and the outer wall 12 of the manifold 10 are implemented as circular tube structures. The support wall 13 has a cross-shaped structure, thereby forming a first drainage channel 101 with four channels in a cross shape between the inner wall 11 and the outer wall 12, so as to increase the effective drainage area and facilitate the improvement of drainage speed.

[0047] Preferably, in this preferred embodiment of the application, the chest drainage tube is made of silicone material.

[0048] It is understood that the support wall 13 is disposed between the inner wall 11 and the outer wall 12 to support the first drainage channel 101 and prevent the first drainage channel 101 from being closed due to bending or squeezing.

[0049] In a specific example of this application, the manifold 10 includes a plurality of (e.g., three or four) support walls 13, and adjacent support walls 13 are separated by an inner tube wall 11 and an outer tube wall 12 forming mutually spaced first drainage channels 101. Therefore, in this preferred embodiment of the application, the first drainage channels 101 are located outside the second drainage channels 102, and any two first drainage channels 101 are spaced apart from each other, which can prevent the manifold 10 from becoming blocked.

[0050] As an example, in this preferred embodiment of the present application, the support wall 13 of the manifold 10 has a cross-shaped structure, forming a first drainage channel with four channels in a cross shape between the inner pipe wall 11 and the outer pipe wall 12, which can increase the effective drainage area and help improve the drainage speed.

[0051] The manifold 10 includes a closed section 14 and an open section 15, wherein the closed section 14 and the open section 15 are an integral structure, that is, the open section 15 extends integrally from one end of the closed section 14, and the closed section 14 is located between the discharge pipe 20 and the open section 15.

[0052] The first drainage channel 101 and the second drainage channel 102 formed in the closed section 14 are closed channel structures, and the first drainage channel 101 and the second drainage channel 102 formed in the open section 15 are open channel structures. That is, the first drainage channel 101 and the second drainage channel 102 located in the open section 15 are provided with openings so that liquid and gas can enter the first drainage channel 101 and the second drainage channel 102 through the openings.

[0053] Through the above segmentation, the open section 15 undertakes the function of air / liquid intake at the collection end, and the closed section 14 undertakes the function of stable flow convergence and isolation at the guide end, thereby enhancing the flow separation effect of gas and liquid in the pipe and reducing near-end crossflow interference.

[0054] The first drainage channel 101 and the second drainage channel 102, located in the closed section 14, extend to the discharge channel 103, and are connected to the discharge channel 103. Preferably, in this preferred embodiment of the application, the first drainage channel 101, located in the closed section 14, extends obliquely from the outside to the inside, such that the first drainage channel 101 and the second drainage channel 102 are interconnected with the discharge channel 103. It is understood that when the first drainage channel 101 and the second drainage channel 102 are respectively connected to the discharge channel 103, the negative pressure of the respective first drainage channel 101 and second drainage channel 102 is the same, which can maintain high-flow-rate drainage and reduce the risk of blockage.

[0055] Specifically, the open section 15 includes at least two open section wall units 151 and a drainage channel 152 formed between the at least two open section wall units 151, wherein the drainage channel 152 connects the first drainage channel 101 with the outside of the open section 15 to drain liquid from the outside into the first drainage channel. Preferably, in this preferred embodiment of the present application, the drainage channel 152 extends from the port of the open section 15 to the closed section 14.

[0056] In this preferred embodiment of the present application, the drainage groove 152 of the open section 15 is an elongated groove or a perforated groove. It is understood that the specific shape of the drainage groove 152 is merely an example and not a limitation.

[0057] In a specific embodiment of this application, the open section 15 includes four open section wall units 151 surrounding the inner wall 12, and four drainage channels 152 formed between the open section wall units 151. During the drainage process, the fluid in the pleural cavity enters the first drainage channel 101 through the drainage channels 152, and then enters the discharge channel 103 along the first drainage channel 101, and is finally discharged outward.

[0058] The open section 15 is further provided with an opening structure 153 for communicating with gas / liquid in the pleural cavity. The opening structure 153 includes at least one vent 1531 located at a position corresponding to the second drainage channel 102 and at least one fluid inlet 1532 located at a position corresponding to the first drainage channel 101. Preferably, the vent 1531 and the fluid inlet 1532 are arranged longitudinally at intervals along the collecting tube 10, such that when the pleural drainage tube is inserted into the pleural cavity, the section near the top of the pleural cavity primarily communicates with the gas accumulation area via the vent 1531, and the section near the bottom of the pleural cavity primarily communicates with the fluid accumulation area via the fluid inlet 1532, thereby achieving zoned drainage of gas at the top and fluid at the bottom.

[0059] It is understandable that the ventilation holes and the inlet openings are arranged axially along the manifold 10, so that after the tube is inserted, the ventilation holes correspond to the air accumulation area at the top of the pleural cavity and the inlet openings correspond to the fluid accumulation area at the bottom of the pleural cavity. This allows for separate flow of air capture at the top and fluid drainage at the bottom within a single chest tube, which then enter the second drainage channel 102 and the first drainage channel 101 respectively, and are then discharged through the outlet end.

[0060] In a specific embodiment of this application, the ventilation port 1531 is located in the proximal region of the open section 15 (the region closer to the top of the thoracic cavity) and is configured as a single port or a multi-port array circumferentially. As an example, the ventilation port 1531 can be an elliptical port, a circular port, or an oblong port; the axial spacing between adjacent ventilation ports can be set to approximately 20±3 mm to balance ventilation efficiency and tube wall strength. For the fluid inlet side, the fluid inlet opening corresponding to the first drainage channel 101 can be configured as a multi-port structure distributed circumferentially to reduce the probability of drainage failure due to blood clots / fibrin blocking a single side opening.

[0061] In one specific embodiment of this application, the fluid inlet opening 1532 is located in the distal region of the open segment 15 (the region closer to the bottom of the thoracic cavity), and the fluid inlet opening may be one or more combinations of a side hole, an oblique hole, or an end hole. To reduce the risk of blood clots or fibrin blockage, the fluid inlet opening 1532 may be provided in multiple locations and evenly distributed circumferentially; or, the fluid inlet opening 1532 may be divided into at least two groups in the axial direction to maintain a usable opening even when locally adhered to tissue.

[0062] In a specific embodiment of this application, the function of the closed section 14 is to keep the first drainage channel 101 and the second drainage channel 102 closed within the closed section 14 and form a stable confluence path at the manifold 10, thereby avoiding unnecessary short-circuiting of liquid / gas in the open section 15 near the discharge end; while the open section 15 allows the intrathoracic liquid and gas to enter the corresponding drainage channels respectively through the above-mentioned opening structure, thereby improving drainage efficiency.

[0063] In some embodiments, the chest drainage tube is preferably made of silicone. In some specific examples, the total length of the chest drainage tube may be approximately 1220 mm ± 20 mm, and the effective length of the open end may be approximately 350 mm ± 10 mm. In some embodiments, the outer diameter / inner diameter of the tube may be set according to corresponding dimensions, for example, the outer diameter may be approximately 8.50 mm and the inner diameter may be approximately 8.00 mm. The above dimensions are merely examples, and those skilled in the art can adjust them according to different populations and clinical needs without departing from the principles of the present invention.

[0064] This invention relates to a chest drainage tube suitable for draining pleural effusion, hemoplegia, and purulent pleural effusion from the pleural cavity and / or mediastinal cavity. Its usage may include the following steps: First, remove the chest drainage tube and confirm that the tube is undamaged and that all drainage channels are unobstructed; pay special attention to checking that the vent and inlet openings at the open section are not blocked. In some embodiments, the chest drainage tube may be a silicone chest tube, with vents provided in the open section area, and adjacent vents may be arranged at a predetermined interval (e.g., about 20±3) to facilitate the entry of gas into the second drainage channel.

[0065] The chest drainage tube is inserted into the chest cavity according to the standard clinical procedure, with the open section located inside the chest cavity and communicating with the gas / liquid within the chest cavity, so that the gas and liquid can enter the second drainage channel and the first drainage channel respectively.

[0066] After the chest drainage tube is inserted, the direction and depth of the tube are adjusted so that the opening area of ​​the second drainage channel points to and is located in the air accumulation area at the top of the chest cavity, and the opening area of ​​the first drainage channel points to and is located in the fluid accumulation area at the bottom of the chest cavity, thereby forming a zoned drainage system that traps air at the top and drains fluid at the bottom.

[0067] The chest drainage tube is fixed at the puncture / incision site to restrict axial displacement and rotation of the tube; and the drain end of the drainage tube is connected to an external drainage device to continuously drain the gas and / or fluid that has entered each drainage channel.

[0068] During the drainage process, the tube is finely adjusted as needed based on whether the drainage is unobstructed and the clinical observation results to maintain the zoned drainage state described in the previous steps; when the clinical assessment meets the indication for tube removal, the chest drainage tube is removed according to the standard procedure and the incision is treated.

[0069] In use, the open section 15 is located within the pleural cavity: air at the top of the pleural cavity enters the second drainage channel 102 through the ventilation hole corresponding to the second drainage channel 102; fluid at the bottom of the pleural cavity enters the first drainage channel 101 through the inlet corresponding to the first drainage channel 101. Subsequently, under the guiding action of the collecting tube 10, the gas and liquid converge towards the proximal end along their respective channels and are discharged from the discharge end through the discharge channel 103.

[0070] Since the first drainage channel 101 is configured as multiple channels and is supported by the support wall 13, the channel is not easy to collapse when bent or under pressure, which can reduce the risk of pipe blockage and maintain drainage stability; at the same time, the gas channel and the liquid channel are isolated, which reduces the mutual interference of "large liquid flow blocking exhaust / large gas flow affecting liquid drainage" in the single-chamber structure.

[0071] In some embodiments, the present invention also provides a chest drainage system with the aforementioned chest drainage tube, the system comprising: a chest drainage tube, a drainage connecting tube, a drainage bottle, and a negative pressure / digital drainage host. The digital drainage host provides portable adjustable negative pressure, digitally displays the leakage rate and generates data curves, simultaneously monitors stage / total drainage volume and drainage time, and supports network or Bluetooth data transmission.

[0072] In a preferred embodiment of this application, the host has a built-in battery to meet the needs of mobile use (e.g., standby time ≥ 8 hours) and is lightweight (e.g., about 1.2 kg). By using the chest drainage tube of this invention in conjunction with the above system, stable negative pressure control and data management of the drainage process can be further achieved while realizing gas-fluid diversion drainage.

[0073] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and any variations or modifications may be made to the implementation of the present invention without departing from the stated principles.

Claims

1. A chest drainage tube, characterized in that, The device includes a manifold and an integrally extended drain tube. The manifold forms at least one first drainage channel and at least one second drainage channel. The first drainage channel is used to drain intrapleural fluid, and the second drainage channel is used to drain intrapleural gas. The drain tube forms a drain channel that communicates with the first and second drainage channels to drain fluid and / or gas entering through the first and second drainage channels to the outside. The manifold includes a closed section and an open section. The open section extends integrally from one end of the closed section, and the closed section is located between the drain tube and the open section. The first and second drainage channels located in the closed section are closed channel structures, and the first and second drainage channels located in the open section are open channel structures, allowing intrapleural media to enter the corresponding drainage channel through the open section.

2. The chest drainage tube according to claim 1, wherein the open section is provided with an opening structure for communicating with gas and fluid in the chest cavity, the opening structure including at least one vent hole disposed at a position corresponding to the second drainage channel, and at least one fluid inlet disposed at a position corresponding to the first drainage channel.

3. The thoracic drainage tube according to claim 2, wherein the ventilation hole and the fluid inlet are arranged at intervals along the longitudinal direction of the collecting tube, so that after the tube is inserted, the area near the top of the thoracic cavity is connected to the air accumulation area through the ventilation hole, and the area near the bottom of the thoracic cavity is connected to the fluid accumulation area through the fluid inlet.

4. The chest drainage tube according to claim 1, wherein the collecting tube has a double-wall structure, including an inner wall, an outer wall, and at least one supporting wall located between the inner wall and the outer wall; The first drainage channel is formed between the inner and outer pipe walls, the second drainage channel is formed on the inner side of the inner pipe wall, and adjacent first drainage channels are separated by a support wall.

5. The thoracic drainage tube according to claim 4, wherein the supporting wall has a cross-shaped structure to form a first drainage channel with four channels in a cross shape between the inner and outer tube walls.

6. The chest drainage tube according to claim 4 or 5, wherein there are multiple first drainage channels and one second drainage channel, and the multiple first drainage channels are arranged around the outside of the second drainage channel.

7. The chest drainage tube according to claim 1, wherein the first drainage channel and the second drainage channel are arranged side by side.

8. The thoracic drainage tube according to claim 1, wherein the open section includes at least two open section wall units and a drainage groove formed between adjacent open section wall units, the drainage groove connecting the first drainage channel and the outside of the open section, so as to drain intrathoracic fluid to the first drainage channel.

9. The thoracic drainage tube according to claim 8, wherein the drainage channel extends from the port of the open section to the closed section.

10. The thoracic drainage tube according to claim 2, wherein the ventilation port is located in the proximal region of the open section and is configured as a single hole or a multi-hole array along the circumference, and the fluid inlet is located in the distal region of the open section.

11. The thoracic drainage tube according to claim 2 or 10, wherein the ventilation hole is any one or more of an elliptical hole, a round hole, or an oblong hole.

12. The thoracic drainage tube according to claim 2 or 10, wherein the inlet is one or more of a side hole, an oblique hole or an end hole, and there are multiple inlet openings evenly distributed circumferentially, or divided into at least two groups in the axial direction.

13. The chest drainage tube according to claim 1, wherein the first drainage channel in the closed section extends obliquely from the outside to the inside and is connected to the discharge channel.

14. The chest drainage tube according to claim 1, wherein the chest drainage tube is made of silicone material.

15. A chest drainage system with a chest drainage tube, comprising: The chest drainage tube, drainage connection tube, drainage bottle, and negative pressure and / or digital drainage host as described in any one of claims 1 to 14; The negative pressure and / or digital drainage unit is used to provide adjustable negative pressure, digitally display the leakage rate and generate data curves, monitor stage and / or total drainage volume and drainage time, and support network or Bluetooth data transmission.

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