Closed chest drainage tube

Abstract

The invention relates to the technical field of medical instruments, in particular to a closed chest drainage tube which comprises a first tube and a second tube, an elastic first air bag is arranged on the outer wall of the first tube, the first air bag is communicated with a first inflation tube, an adjusting air bag is further arranged on the first tube, and the adjusting air bag is communicated with the first air bag; when the second pipeline moves in the direction away from the first pipeline, the extrusion degree of the adjusting air bag by the first pipeline and the second pipeline can be increased, and air in the adjusting air bag is transferred into the first air bag; a blocking air bag is further arranged in the first pipeline and communicates with a control piece, and the control piece is used for adjusting the gas amount in the blocking air bag. When the closed thoracic cavity drainage tube is arranged on the body of a patient and used for drainage, the first air bag extends into the thoracic cavity of the patient, and the adjusting air bag is in an underfilled state. According to the closed thoracic cavity drainage tube, the drainage smoothness of the drainage tube can be improved, and the probability of unplanned tube drawing of the drainage tube is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a closed chest drainage tube. Background Art

[0002] Clinically, closed chest drainage is a common medical technology for draining gas, fluid or pus from the patient's chest cavity. Its core principle is to use the gravity difference and the airtightness of the water seal bottle to restore the negative pressure in the chest cavity to promote lung re-expansion.

[0003] During the drainage process of the existing chest drainage tube, the effusion in the chest cavity will be discharged to the outside of the body along with the drainage tube. However, when performing abdominal drainage on patients with empyema, the pleural effusion contains white blood cells, necrotic tissue debris, bacteria and other substances, so that the pleural effusion contains pus, such as patients in the fibropurulent stage. At this time, although the commonly used drainage tube can still drain the effusion in the patient's chest cavity, viscous pus will adhere to the inner wall of the drainage tube. In this way, after the viscous pus adheres to the inner wall of the drainage tube, on the one hand, the attached The accumulated pus will occupy part of the space inside the drainage tube, thereby reducing the smoothness of drainage through the drainage tube; on the other hand, based on the reduced smoothness of drainage through the drainage tube and the viscous pus easily attached to the inner wall of the drainage tube, it is easy for the drainage fluid in the drainage tube to be excessive during the drainage process. The drainage fluid includes pus attached to the inner wall of the drainage tube and the flowing effusion, which leads to an increase in the gravity of the drainage tube, increasing the risk of the drainage tube being pulled under its own gravity, thereby increasing the risk of displacement of the drainage tube and the chance of unplanned removal of the drainage tube.

[0004] Therefore, how to improve the smoothness of drainage tube drainage and reduce the probability of unplanned removal of the drainage tube is a technical problem that urgently needs to be solved. Summary of the invention

[0005] The purpose of the present invention is to provide a closed chest drainage tube to improve the smoothness of drainage and reduce the probability of unplanned extubation of the drainage tube, in order to address the problem that pus attached to the inner wall of the drainage tube during the current chest drainage process will reduce the smoothness of drainage and increase the probability of unplanned extubation of the drainage tube.

[0006] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions: A closed chest drainage tube comprises a first pipe and a second pipe, wherein the first pipe is sleeved on the outer wall of the second pipe, the first pipe is used to extend into the chest cavity, and the second pipe is used to connect a liquid collecting device; an elastic first airbag is arranged on the outer wall of the first pipe, and the first airbag is connected to a first inflation tube so that the amount of gas in the first airbag can be adjusted; an adjusting airbag is also arranged on the first pipe, the adjusting airbag is connected to the first airbag, one side of the adjusting airbag abuts against the first pipe, and the other side of the adjusting airbag abuts against the second pipe; The second pipe can move relative to the first pipe along the length direction of the first pipe. When the second pipe moves in a direction away from the first pipe, the degree to which the regulating airbag is squeezed by the first pipe and the second pipe can be increased, so that the gas in the regulating airbag is transferred to the first airbag, thereby increasing the amount of gas in the first airbag; A blocking airbag is also provided in the first pipeline, and the blocking airbag is connected to a control member, and the control member is used to adjust the amount of gas in the blocking airbag so that the blocking airbag blocks or conducts the first pipeline; When the closed chest drainage tube is arranged on the patient's body and drains, the first airbag extends into the patient's chest cavity, and the regulating airbag is in an underfilled state.

[0007] As a preferred technical solution of the present application, a second airbag is further provided on the outer wall of the first tube, and the second airbag is placed outside the body. The first airbag and the second airbag are used to clamp tissues to fix the first tube relative to the patient.

[0008] As a preferred technical solution of the present application, the second airbag is connected to a second inflation tube, and the second airbag is inflated or deflated by inflating and deflating air in the second inflation tube.

[0009] As a preferred technical solution of the present application, the second airbag includes a second airbag body and an airbag base, the second airbag body is arranged on the airbag base, the airbag base is an annular structure, and the airbag base is sleeved and threadedly connected to the first pipe.

[0010] As a preferred technical solution of the present application, the blocking airbag is fixed on one side of the inner wall of the first pipe, and when the blocking airbag is inflated, the blocking airbag presents a spherical structure.

[0011] As a preferred technical solution of the present application, a movable groove is provided on the first pipe, and the regulating airbag is located in the movable groove. A first abutment is provided on the first pipe, and a second abutment is provided on the second pipe. The first abutment and the second abutment are used to abut the regulating airbag. When the second pipe moves relative to the first pipe, the first abutment moves relative to the second abutment to change the degree of squeezing of the regulating airbag.

[0012] As a preferred technical solution of the present application, the first airbag is an annular structure sleeved on the first pipe; The second airbag is in an annular structure sleeved on the first pipe.

[0013] As a preferred technical solution of the present application, the closed chest drainage tube further includes a spring, the spring is elastic, one end of the spring is connected to the first pipe, and the other end of the spring is connected to the second pipe; The spring is sleeved on the outer wall of the second pipe.

[0014] As a preferred technical solution of the present application, the second pipe includes a second pipe body and a pipe base, one end of the spring is connected to the pipe base, and the pipe base is threadedly engaged with the second pipe body. The pipe base is rotated relative to the second pipe body to move relative to the second pipe body along the length direction of the second pipe body.

[0015] As the priority technical solution of the present application, the control component includes a third inflation tube and an extractor. One end of the third inflation tube is connected to the blocking airbag, and the other end is connected to the extractor. The extractor is used to inject or extract gas into the third inflation tube to inflate or deflate the blocking airbag.

[0016] As a preferred technical solution of the present application, a switch is provided on the third air filling pipe to control the unblocking of the third air filling pipe. The specific structure of providing a switch on the pipe to control the unblocking thereof is prior art and will not be described in detail here.

[0017] As a preferred technical solution of the present application, the first tube includes a hard section which is not easily deformed, and the first airbag and the second airbag are both arranged on the hard section, thereby further improving the stability of the cooperation between the first tube and the tissue.

[0018] As a priority technical solution of the present application, a gripping portion is also provided on the first pipe, and the gripping portion is used to be placed outside the body and to be gripped by an operator, so as to fix the first pipe relative to the human body while controlling the reciprocating motion of the second pipe relative to the first pipe.

[0019] As a preferred technical solution of the present application, the regulating airbag is connected to the first airbag via an inflation tube.

[0020] As the priority technical solution of the present application, switches are provided on both the first inflation tube and the second inflation tube to control the opening or blocking of the corresponding first inflation tube or the second inflation tube. The specific structure of providing a switch on the pipeline to control the opening or blocking thereof is prior art and will not be elaborated here.

[0021] As the priority technical solution of the present application, the first inflation tube or the second inflation tube is adapted to be equipped with an external pump, which may be a syringe-like structure to inject or extract gas into or from the corresponding first inflation tube or second inflation tube. The specific prior art of the external pump structure will not be described here.

[0022] Compared with the prior art, the present invention has the following beneficial effects: 1. In the scheme of the present application, when the closed chest drainage tube is arranged on the patient's body, the first tube is first extended into the patient's chest cavity, and the deflated first airbag is extended into the chest cavity together with the first tube, and then the first inflation tube is inflated to make the first airbag inflated, so as to limit the first tube, thereby reducing the probability of the closed chest drainage tube coming out of the patient's chest cavity. Among them, the second tube located outside the body is usually longer, and the second tube is farther away from the chest cavity than the first tube. As the drainage proceeds, when there is pus in the chest cavity, during the process of draining the pus, there will be a lot of viscous pus attached to the inner wall of the second tube, which reduces the space for the accumulated fluid to flow in the second tube. In this way, during the drainage, When the first tube is filled, the second tube is easily filled. In this way, the more effusion in the second tube and the pus attached to the inner wall of the second tube will increase the gravity of the second tube. Since the first tube is limited, the increased gravity will pull the second tube, which can make the second tube move relative to the first tube in the direction away from the first tube. In this process, the degree to which the regulating airbag is squeezed by the first tube and the second tube increases, so that the gas in the regulating airbag is transferred to the first airbag, thereby further increasing the inflation degree of the first airbag. In this way, after the inflation degree of the first airbag increases, the volume of the first airbag increases, which can further improve the limiting effect of the first airbag on the first tube, and further reduce the probability of unplanned extubation of the drainage tube of the present application; At the same time, when the color of pleural effusion is darker, it is difficult for medical staff to observe the drainage tube intuitively during the drainage process. In the present application, when a large amount of pus is attached to the inner wall of the second tube, the increased gravity pulls the second tube, causing the second tube to move away from the first tube relative to the first tube. In this way, medical staff can observe the positional relationship of the second tube relative to the first tube, and judge the attachment of pus in the second tube by comparing the positional relationship of the second tube relative to the first tube at the initial stage of drainage, so as to dredge the second tube in time, thereby further improving the convenience of observing the attachment of pus in the second tube; Furthermore, when a large amount of pus is attached to the inner wall of the second pipe, the control member is controlled so that the blocking airbag blocks the first pipe, and when the first pipe is fixed relative to the human body, the second pipe is reciprocated relative to the first pipe along the length direction of the first pipe. In this way, the activity of the movement of the accumulated fluid in the second pipe can be accelerated, so that the accumulated fluid can quickly change the flow direction to generate oscillating water waves, thereby impacting the pus attached to the inner wall of the second pipe, and then the pus is separated from the inner wall of the second pipe, so as to achieve the purpose of unblocking the second pipe and improve the smoothness of drainage; and when the second pipe reciprocates relative to the first pipe, the degree of squeezing of the regulating airbag changes continuously, so that the first airbag can be reciprocatedly expanded or reduced, so that the area on the tissue corresponding to the first airbag can be massaged, thereby reducing the risk of the tissue area being crushed; 2. Furthermore, by fixing the blocking airbag on one side of the inner wall of the first pipe, when the blocking airbag is inflated, the blocking airbag has a spherical structure, which is more conducive to the blocking airbag and the inner wall of the first pipe to fit together, thereby blocking the first pipe and improving the stability of the blocking airbag when blocking the first pipe; at the same time, when the gas in the blocking airbag is discharged, the blocking airbag becomes deflated, and the deflated blocking airbag can be located on one side of the inner wall of the first pipe, thereby reducing the interference of the deflated blocking airbag on the drainage, thereby improving the smoothness of the drainage; and the blocking airbag has elasticity, thereby when the blocking airbag becomes deflated, the volume of the blocking airbag can be further reduced, thereby further improving the smoothness of the drainage; 3. Furthermore, a spring is provided so that one end of the spring is connected to the first pipe and the other end is connected to the second pipe. The spring is used to reset the second pipe. When the second pipe is pulled by an external force, the second pipe moves relative to the first pipe along the length direction of the first pipe. During this process, the deformation of the spring increases. After the external force is removed, the spring gradually recovers its deformation. The spring provides elastic force to move the second pipe relative to the first pipe so that the second pipe is maintained in a state where it is not subjected to external force. In this way, the stability of the closed chest drainage tube of the present application during drainage is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of a chest drainage tube in one embodiment of the present application when the blocking airbag is in a deflated state; Figure 2 This is a schematic diagram of the structure of a chest drainage tube in one embodiment of the present application when the blocking airbag is in an inflated state; Figure 3 This is a schematic structural diagram of a second airbag in one embodiment of a chest drainage tube of the present application; Figure 4This is a schematic structural diagram of a first airbag in one embodiment of a chest drainage tube of the present application; Figure 5 This is a schematic structural diagram of a tube base in one embodiment of a chest drainage tube of the present application; Markings in the figure: 1-first pipeline, 2-second pipeline, 3-first airbag, 4-first inflation tube, 5-adjusting airbag, 6-sealing airbag, 7-control part, 8-second airbag, 9-second inflation tube, 10-second airbag body, 11-airbag base, 12-movable groove, 13-first abutment, 14-second abutment, 15-spring, 16-second pipeline body, 17-pipeline base, 18-first base, 19-second base, 20-third inflation tube, 21-injector. DETAILED DESCRIPTION

[0024] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0025] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the invention claimed for protection, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0029] Embodiment 1: This embodiment provides a closed chest drainage tube, see Figure 1-Figure 4 As shown, it comprises a first pipe 1 and a second pipe 2, wherein the first pipe 1 is sleeved on the outer wall of the second pipe 2, the first pipe 1 is used to extend into the chest cavity, and the second pipe 2 is used to connect to a liquid collecting device; an elastic first airbag 3 is arranged on the outer wall of the first pipe 1, and the first airbag 3 is connected to a first inflation tube 4 so that the amount of gas in the first airbag 3 can be adjusted; an adjusting airbag 5 is also arranged on the first pipe 1, and the adjusting airbag 5 is connected to the first airbag 3, one side of the adjusting airbag 5 abuts against the first pipe 1, and the other side abuts against the second pipe 2; The second pipe 2 can move relative to the first pipe 1 along the length direction of the first pipe 1. When the second pipe 2 moves in a direction away from the first pipe 1, the degree to which the regulating airbag 5 is squeezed by the first pipe 1 and the second pipe 2 can be increased, so that the gas in the regulating airbag 5 is transferred to the first airbag 3, so as to increase the amount of gas in the first airbag 3; A blocking airbag 6 is also provided in the first pipeline 1, and the blocking airbag 6 is connected to a control member 7, and the control member 7 is used to adjust the amount of gas in the blocking airbag 6 so that the blocking airbag 6 blocks or conducts the first pipeline 1; When the closed chest drainage tube is arranged on the patient's body and draining, the first airbag 3 extends into the patient's chest cavity, and the regulating airbag 5 is in an underfilled state.

[0030] In the present application, when the closed chest drainage tube is arranged on the patient's body, the first tube 1 is first extended into the patient's chest cavity, and the deflated first airbag 3 is extended into the chest cavity together with the first tube 1, and then the first inflation tube 4 is inflated to make the first airbag 3 inflated, so as to limit the first tube 1, thereby reducing the probability of the closed chest drainage tube coming out of the patient's chest cavity. Among them, the second tube 2 located outside the body is usually longer, and the second tube 2 is farther away from the chest cavity than the first tube 1. As the drainage proceeds, when there is pus in the chest cavity, during the process of draining the pus, there will be a lot of viscous pus attached to the inner wall of the second tube 2, which reduces the space for the accumulated fluid to flow in the second tube 2. In this way, it is easy to make the second tube 2 constricted during drainage. The pipe 2 is in a filled state, so that the more effusion in the second pipe 2 and the pus attached to the inner wall of the second pipe 2 will increase the gravity of the second pipe 2. Since the first pipe 1 is limited, the increased gravity will pull the second pipe 2, so that the second pipe 2 can move relative to the first pipe 1 in a direction away from the first pipe 1. In this process, the degree to which the regulating airbag 5 is squeezed by the first pipe 1 and the second pipe 2 increases, so that the gas in the regulating airbag 5 is transferred to the first airbag 3, thereby further increasing the inflation degree of the first airbag 3. In this way, after the inflation degree of the first airbag 3 increases, the volume of the first airbag 3 increases, which can further improve the limiting effect of the first airbag 3 on the first pipe 1, and further reduce the probability of unplanned extubation of the drainage tube of the present application; At the same time, when the color of pleural effusion is darker, it is difficult for medical staff to observe the drainage tube intuitively during the drainage process. In the present application, when a lot of pus is attached to the inner wall of the second pipe 2, the increased gravity pulls the second pipe 2, which will cause the second pipe 2 to move away from the first pipe 1 relative to the first pipe 1. In this way, medical staff can observe the positional relationship of the second pipe 2 relative to the first pipe 1, and judge the adhesion of pus in the second pipe 2 by comparing the positional relationship of the second pipe 2 relative to the first pipe 1 at the initial stage of drainage, so as to dredge the second pipe 2 in time, thereby further improving the convenience of observing the adhesion of pus in the second pipe 2; Furthermore, when a large amount of pus is attached to the inner wall of the second pipe 2, the control member 7 is controlled to make the blocking airbag 6 block the first pipe 1. When the first pipe 1 is fixed relative to the human body, the second pipe 2 is made to reciprocate relative to the first pipe 1 along the length direction of the first pipe 1. In this way, the activity of the movement of the accumulated fluid in the second pipe 2 can be accelerated, so that the accumulated fluid can quickly change the flow direction to generate oscillating water waves, thereby impacting the pus attached to the inner wall of the second pipe 2, and then making the pus detach from the inner wall of the second pipe 2, so as to achieve the purpose of unblocking the second pipe 2 and improve the smoothness of drainage; and when the second pipe 2 reciprocates relative to the first pipe 1, the degree of squeezing of the adjusting airbag 5 is constantly changed, so that the first airbag 3 can be reciprocatedly expanded or shrunk, so that the area on the tissue corresponding to the first airbag 3 can be massaged, thereby reducing the risk of the tissue area being crushed.

[0031] As a preferred embodiment, based on the above method, further, a second airbag 8 is provided on the outer wall of the first tube 1, and the second airbag 8 is placed outside the body. The first airbag 3 and the second airbag 8 are used to clamp the tissue to fix the first tube 1 relative to the patient.

[0032] Furthermore, by providing the second airbag 8, the first airbag 3 and the second airbag 8 can cooperate to clamp the tissue, thereby improving the stability of the first tube 1 fixed on the patient's body, thereby further reducing the probability of the first tube 1 being displaced along its own length.

[0033] As a preferred embodiment, on the basis of the above-mentioned embodiment, further, the second airbag 8 is connected to a second inflation tube 9, and the second airbag 8 is inflated or deflated by inflating and deflating air in the second inflation tube 9.

[0034] Furthermore, by providing a second inflation tube 9 and injecting or extracting gas into the second inflation tube 9 to change the amount of gas in the second airbag 8, the convenience of adjusting the inflation amount of the second airbag 8 is improved, thereby further improving the flexibility of adjusting the clamping force of the first airbag 3 and the second airbag 8 when clamping the tissue.

[0035] Embodiment 2: Based on the technical solution of embodiment 1, further, see Figure 1-Figure 4 As shown, the second airbag 8 includes a second airbag body 10 and an airbag base 11 . The second airbag body 10 is disposed on the airbag base 11 . The airbag base 11 is an annular structure. The airbag base 11 is sleeved and threadedly connected to the first pipe 1 .

[0036] Furthermore, by providing a second airbag body 10 and an airbag base 11, the airbag base 11 is sleeved and threadedly connected to the first pipe 1. In this way, by rotating the airbag base 11 relative to the first pipe 1, the airbag base 11 is moved along the length direction of the first pipe 1, thereby adjusting the distance between the second airbag body 10 and the first airbag 3, so that the second airbag body 10 and the first airbag 3 can clamp tissues of different thicknesses after inflation, thereby improving the adaptability of the closed chest drainage tube of the present application to the patient.

[0037] As a preferred implementation, based on the above-mentioned implementation, further, the blocking airbag 6 is fixed on one side of the inner wall of the first pipe 1 , and when the blocking airbag 6 is inflated, the blocking airbag 6 presents a spherical structure.

[0038] Furthermore, by fixing the blocking airbag 6 on one side of the inner wall of the first pipe 1, when the blocking airbag 6 is inflated, the blocking airbag 6 presents a spherical structure, which is more conducive to the blocking airbag 6 to fit the inner wall of the first pipe 1, thereby sealing the first pipe 1 and improving the stability of the blocking airbag 6 when blocking the first pipe 1; at the same time, when the gas in the blocking airbag 6 is discharged, the blocking airbag 6 becomes deflated, and the deflated blocking airbag 6 can be located on one side of the inner wall of the first pipe 1, thereby reducing the interference of the deflated blocking airbag 6 on the drainage, thereby improving the smoothness of the drainage; and the blocking airbag 6 has elasticity, thereby when the blocking airbag 6 becomes deflated, the volume of the blocking airbag 6 can be further reduced, thereby further improving the smoothness of the drainage.

[0039] As a preferred embodiment, on the basis of the above method, further, a movable groove 12 is provided on the first pipe 1, and the regulating airbag 5 is located in the movable groove 12; a first abutting portion 13 is provided on the first pipe 1, and a second abutting portion 14 is provided on the second pipe 2; the first abutting portion 13 and the second abutting portion 14 are used to abut the regulating airbag 5; when the second pipe 2 moves relative to the first pipe 1, the first abutting portion 13 moves relative to the second abutting portion 14 to change the degree of squeezing of the regulating airbag 5.

[0040] Furthermore, by arranging the regulating airbag 5 in the movable groove 12, the stability of the regulating airbag 5 on the first pipe 1 can be improved. At the same time, by arranging the first abutment 13 and the second abutment 14, when the second pipe 2 moves relative to the first pipe 1, the first abutment 13 moves relative to the second abutment 14, thereby changing the distance between the first abutment 13 and the second abutment 14, thereby further facilitating the adjustment of the degree of squeezing of the regulating airbag 5 by the first abutment 13 and the second abutment 14.

[0041] As a preferred embodiment, based on the above-mentioned method, further, the first airbag 3 is an annular structure sleeved on the first pipe 1; The second airbag 8 is in an annular structure sleeved on the first pipe 1 .

[0042] Furthermore, by arranging the first airbag 3 and the second airbag 8 into an annular structure sleeved on the first pipe 1, when the first airbag 3 and the second airbag 8 are both inflated, the limiting effect on the first pipe 1 can be further improved. At the same time, when the first airbag 3 and the second airbag 8 cooperate to clamp the tissue, the annular structure can reduce the probability of the effusion in the pleural cavity seeping out of the outer wall of the first pipe 1 to the outside of the body.

[0043] Embodiment 3: Based on the technical solution of Embodiment 2, further, see Figure 1-Figure 5 As shown, the closed chest drainage tube further includes a spring 15, the spring 15 is elastic, one end of the spring 15 is connected to the first pipe 1, and the other end is connected to the second pipe 2; The spring 15 is sleeved on the outer wall of the second pipe 2 .

[0044] Furthermore, a spring 15 is provided so that one end of the spring 15 is connected to the first pipe 1, and the other end is connected to the second pipe 2. The spring 15 is used to reset the second pipe 2. When the second pipe 2 is pulled by an external force, the second pipe 2 moves relative to the first pipe 1 along the length direction of the first pipe 1. During this process, the deformation of the spring 15 increases. After the external force is removed, the spring 15 gradually recovers its deformation. The spring 15 provides elastic force to move the second pipe 2 relative to the first pipe 1, so that the second pipe 2 is maintained in a state where it is not subjected to external force. In this way, the stability of the closed chest drainage tube of the present application during drainage is further improved.

[0045] As a preferred embodiment, on the basis of the above method, further, the second pipe 2 includes a second pipe body 16 and a pipe base 17, one end of the spring 15 is connected to the pipe base 17, and the pipe base 17 is threadedly matched with the second pipe body 16, and the pipe base 17 is rotated relative to the second pipe body 16 to move relative to the second pipe body 16 along the length direction of the second pipe body 16.

[0046] Furthermore, by providing a pipe base 17 and making the pipe base 17 threadedly matched with the second pipe body 16, when the pipe base 17 rotates relative to the second pipe body 16 around the central axis of the second pipe body 16, the pipe base 17 can move relative to the second pipe body 16 along the length direction of the second pipe body 16, thereby adjusting the positional relationship between the spring 15 and the second pipe 2, thereby further improving the compatibility between the closed chest drainage tube and the patient; The pipe base 17 includes a first base 18 and a second base 19, which are rotatably connected. The first base 18 is connected to the spring 15, and the second base 19 is threadedly connected to the second pipe body 16, thereby improving the smoothness of adjusting the positional relationship between the spring 15 and the second pipe 2.

[0047] As a preferred embodiment, on the basis of the above-mentioned method, the control component 7 further includes a third inflation tube 20 and an extractor 21, one end of the third inflation tube 20 is connected to the blocking airbag 6, and the other end is connected to the extractor 21, and the extractor 21 is used to inject or extract gas into the third inflation tube 20 to inflate or deflate the blocking airbag 6.

[0048] Furthermore, by setting up a third inflation tube 20 and an extractor 21, wherein the extractor 21 includes a cylinder and a piston rod, the piston rod is moved relative to the cylinder to inject or extract gas into the third inflation tube 20 to inflate or deflate the blocking airbag 6, thereby improving the convenience of adjusting the inflation state of the blocking airbag 6.

[0049] As a preferred embodiment, based on the above method, further, a switch is provided on the third air filling tube 20 to control the unblocking of the third air filling tube 20. The specific structure of providing a switch on the pipeline to control the unblocking thereof is prior art, so it will not be described in detail here.

[0050] As a preferred embodiment, on the basis of the above-mentioned method, further, the first tube 1 includes a hard section, which is not easy to deform, and the first airbag 3 and the second airbag 8 are both arranged on the hard section, so as to further improve the stability of the cooperation between the first tube 1 and the tissue.

[0051] As a preferred embodiment, on the basis of the above-mentioned method, further, a gripping portion is provided on the first pipe 1, and the gripping portion is used to be placed outside the body, and the gripping portion is used for the operator to hold, so as to fix the first pipe 1 relative to the human body during the process of controlling the reciprocating motion of the second pipe 2 relative to the first pipe 1.

[0052] As a preferred embodiment, on the basis of the above-mentioned manner, further, the regulating airbag 5 and the first airbag 3 are connected via an inflation tube.

[0053] As a preferred embodiment, on the basis of the above-mentioned method, further, switches are provided on the first inflation tube 4 and the second inflation tube 9 to control the opening or blocking of the corresponding first inflation tube 4 or the second inflation tube 9. The specific structure of providing a switch on the pipeline to control the opening or blocking thereof is prior art, so it will not be described in detail here.

[0054] As a preferred embodiment, on the basis of the above-mentioned method, further, the first inflation tube 4 or the second inflation tube 9 is adapted to be equipped with an external pump, and the external pump may be a syringe-like structure, so as to inject or extract gas into the corresponding first inflation tube 4 or the second inflation tube 9. The specific prior art of the external pump structure will not be elaborated here.

[0055] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A closed chest drainage tube, characterized in that: The device comprises a first pipe and a second pipe, wherein the first pipe is sleeved on the outer wall of the second pipe, the first pipe is used to extend into the chest cavity, and the second pipe is used to connect to a liquid collecting device; an elastic first airbag is arranged on the outer wall of the first pipe, and the first airbag is connected to a first inflation tube so that the amount of gas in the first airbag can be adjusted; an adjusting airbag is also arranged on the first pipe, the adjusting airbag is connected to the first airbag, one side of the adjusting airbag abuts against the first pipe, and the other side of the adjusting airbag abuts against the second pipe; The second pipe can move relative to the first pipe along the length direction of the first pipe. When the second pipe moves in a direction away from the first pipe, the degree to which the regulating airbag is squeezed by the first pipe and the second pipe can be increased, so that the gas in the regulating airbag is transferred to the first airbag, thereby increasing the amount of gas in the first airbag; A blocking airbag is also provided in the first pipeline, and the blocking airbag is connected to a control member, and the control member is used to adjust the amount of gas in the blocking airbag so that the blocking airbag blocks or conducts the first pipeline; When the closed chest drainage tube is arranged on the patient's body and drains, the first airbag extends into the patient's chest cavity, and the regulating airbag is in an underfilled state.

2. A closed chest drainage tube according to claim 1, characterized in that: A second airbag is also provided on the outer wall of the first tube. The second airbag is placed outside the body. The first airbag and the second airbag are used to clamp tissues so as to fix the first tube relative to the patient.

3. A closed chest drainage tube according to claim 2, characterized in that: The second airbag is connected to a second inflation tube, and the second airbag is inflated or deflated by inflating and deflating air in the second inflation tube.

4. A closed chest drainage tube as claimed in claim 3, characterized in that: The second airbag includes a second airbag body and an airbag base. The second airbag body is arranged on the airbag base. The airbag base is an annular structure. The airbag base is sleeved and threadedly connected to the first pipe.

5. A closed chest drainage tube according to claim 4, characterized in that: The blocking airbag is fixed on one side of the inner wall of the first pipe, and when the blocking airbag is inflated, the blocking airbag presents a spherical structure.

6. A closed chest drainage tube according to claim 5, characterized in that: A movable groove is provided on the first pipe, and the regulating airbag is located in the movable groove. A first abutment is provided on the first pipe, and a second abutment is provided on the second pipe. The first abutment and the second abutment are used to abut the regulating airbag. When the second pipe moves relative to the first pipe, the first abutment moves relative to the second abutment to change the degree of squeezing of the regulating airbag.

7. A closed chest drainage tube according to claim 6, characterized in that: The first airbag is in an annular structure sleeved on the first pipe; The second airbag is in an annular structure sleeved on the first pipe.

8. A closed chest drainage tube according to claim 7, characterized in that: The closed chest drainage tube further comprises a spring, the spring is elastic, one end of the spring is connected to the first pipe, and the other end of the spring is connected to the second pipe; The spring is sleeved on the outer wall of the second pipe.

9. A closed chest drainage tube according to claim 8, characterized in that: The second pipe includes a second pipe body and a pipe base. One end of the spring is connected to the pipe base. The pipe base is threadedly matched with the second pipe body. The pipe base is rotated relative to the second pipe body to move relative to the second pipe body along the length direction of the second pipe body.

10. A closed chest drainage tube according to claim 9, characterized in that: The control component includes a third inflation tube and an extractor, one end of the third inflation tube is connected to the blocking airbag, and the other end is connected to the extractor, and the extractor is used to inject or extract gas into the third inflation tube to fill or deflate the blocking airbag.

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