Hydropneumothorax suction device and application control method thereof

Abstract

The invention discloses a hydropneumothorax suction device and an application control method thereof.The hydropneumothorax suction device comprises an air suction pipe, a liquid suction pipe, a first negative pressure assembly and a second negative pressure assembly and further comprises a sealing assembly, the air suction pipe penetrates through the sealing assembly and is slidably connected to the sealing assembly, and the air inlet end of the air suction pipe is provided with an air suction opening and fixedly connected with a miniature air bag; the air outlet end of the air suction pipe is communicated with the first negative pressure assembly, the liquid inlet end of the liquid suction pipe is provided with a liquid suction port, the liquid outlet end of the liquid suction pipe is communicated with the second negative pressure assembly, the liquid suction pipe is parallel to the air suction pipe and sleeved with a balance weight pipe, and the balance weight pipe penetrates through the sealing assembly and is slidably connected to the sealing assembly. The problem that an existing single-tube drainage mode is inaccurate in drainage can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a hydropneumothorax suction device and an application control method thereof. Background Art

[0002] Hydropneumothorax refers to the accumulation of both fluid and gas in the pleural cavity. Clinically, the treatment for patients with hydropneumothorax is to aspirate the fluid and gas through closed chest drainage. During clinical operations, there are requirements for the amount of fluid and gas drained out to prevent the occurrence of re-expansion pulmonary edema, mediastinal shift, and cardiovascular complications. However, with existing clinical treatment methods, a suction tube (such as the Chinese invention patent with application number CN201420801375.3) is usually inserted into the chest cavity to drain gas and liquid, and the accuracy of drainage cannot be guaranteed. Summary of the invention

[0003] The main purpose of the present application is to provide a hydropneumothorax suction device and an application control method thereof, so as to improve the problem of inaccurate drainage in the existing single-tube drainage method.

[0004] In order to achieve the above-mentioned objectives, the present application provides the following technology: a liquid-pneumothorax suction device, comprising an intake tube, a liquid suction tube, a first negative pressure component and a second negative pressure component, and also comprising a sealing component, wherein the intake tube passes through and is slidably connected to the sealing component, an intake port is provided at the intake end of the intake tube, and is fixedly connected to a micro-air bag, an intake end of the intake tube is connected to the first negative pressure component, a liquid intake port is provided at the liquid suction end of the liquid suction tube, and the liquid outlet end is connected to the second negative pressure component, the liquid suction tube is parallel to the intake tube, and is sleeved with a counterweight tube, and the counterweight tube passes through and is slidably connected to the sealing component.

[0005] Furthermore, the air inlet is opened through the radial side wall of the air inlet pipe, and the micro airbag is provided with an air inlet connected to the air inlet along the radial direction of the air inlet pipe.

[0006] Furthermore, the micro airbag covers the axial end side of the air inlet end of the air intake pipe.

[0007] Furthermore, the liquid suction port is opened through the radial side wall of the liquid suction tube, and a blocking plate is fixedly connected to the axial end side of the liquid inlet end of the liquid suction tube, and the counterweight tube abuts against the blocking plate to form a closure for the liquid suction port.

[0008] Furthermore, an end of the counterweight tube away from the blocking plate is fixedly connected with an ear plate, and the ear plate is threadedly connected with a screw abutting against the sealing assembly.

[0009] Furthermore, a buffer layer is fixedly connected to a side of the blocking plate away from the liquid suction tube.

[0010] Furthermore, the sealing assembly includes a sealing block, an inner airbag and an outer airbag, the inner airbag and the outer airbag are arranged at intervals and are both connected to the outside of the sealing block, and the inner airbag is closer to the air inlet end of the suction pipe relative to the outer airbag.

[0011] Furthermore, it also includes an inflation and deflation assembly, which includes a four-way valve, three hoses and three rigid tubes. The air inlet end of the four-way valve is used to connect to the air compressor, one end of the three hoses is respectively connected to the three air outlet ends of the four-way valve, and the other end is respectively connected to one end of each of the rigid tubes, the other end of one of the rigid tubes is connected to the micro airbag, and the other ends of the other two rigid tubes are respectively connected to the inner airbag and the outer airbag.

[0012] Furthermore, the outer airbag is fixedly connected with a fixing ring, and the fixing ring is threadedly connected to the sealing block.

[0013] Furthermore, the outer side surface of the sealing block is a curved surface structure.

[0014] On the other hand, the present application provides an application control method of a hydropneumothorax suction device, comprising the following steps:

[0015] S1. During treatment, the sealing component is installed on the incision to seal the incision;

[0016] S2, the first negative pressure component forms negative pressure on the air intake pipe, and gradually sucks the gas out from the air intake port;

[0017] S3. The second negative pressure component forms negative pressure on the liquid suction tube to gradually suck out the liquid from the liquid suction port until the gas and liquid suction operation is completed.

[0018] Compared with the prior art, the present application can bring the following technical effects: the air intake tube and the liquid suction tube of the present invention are in a separated state, and negative pressure can be formed by the first negative pressure component and the second negative pressure component respectively, so as to control the air intake tube and the liquid suction tube respectively, thereby improving the problem of inaccurate drainage in the existing single-tube drainage method, and during the whole process, the micro airbag floats in the gas to prevent liquid from entering the air intake tube, and the liquid suction port is buried in the liquid to prevent gas from entering the liquid suction tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0020] Figure 1 It is a structural diagram of the present invention;

[0021] Figure 2 The present invention Figure 1 The structural diagram of the left part;

[0022] Figure 3 The present invention Figure 2 A partial enlarged view of

[0023] Figure 4 The present invention Figure 3 A partial enlarged view of

[0024] Figure 5 The present invention Figure 1 The structural diagram on the right side of ;

[0025] Figure 6 The present invention Figure 5 A partial enlarged view of

[0026] Figure 7 It is a flow chart of the application steps of the present invention.

[0027] In the figure: 1. sealing assembly; 11. sealing block; 12. inner airbag; 13. outer airbag; 131. fixing ring; 2. air intake pipe; 21. air intake port; 22. micro airbag; 221. air inlet; 23. embedding groove; 24. limiting nut; 3. first negative pressure assembly; 31. air guide tube; 311. pressure gauge; 312. first control valve; 32. first negative pressure regulating bottle; 321. air transfer chamber; 322. first negative pressure regulating chamber ; 323, transfer tube; 33, first negative pressure connecting tube; 4, suction tube; 41, suction port; 42, weight tube; 421, ear plate; 422, screw; 43, blocking plate; 44, buffer layer; 5, second negative pressure assembly; 51, liquid guide tube; 511, flow meter; 512, one-way valve; 52, second negative pressure regulating bottle; 53, second negative pressure connecting tube; 6, charging and discharging assembly; 61, four-way valve; 62, hose; 63, hard tube. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0030] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0031] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0032] In addition, the term "plurality" shall mean two or more.

[0033] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0034] like Figure 1-Figure 6 A liquid-pneumothorax suction device comprises an air suction tube 2, a liquid suction tube 4, a first negative pressure component 3 and a second negative pressure component 5, and also comprises a sealing component 1. The air suction tube 2 passes through and is slidably connected to the sealing component 1. An air suction port 21 is provided at the air inlet end of the air suction tube 2 and is fixedly connected to a micro air bag 22. The air outlet end of the air suction tube 2 is connected to the first negative pressure component 3. A liquid suction port 41 is provided at the liquid inlet end of the liquid suction tube 4, and the liquid outlet end is connected to the second negative pressure component 5. The liquid suction tube 4 is parallel to the air suction tube 2 and is sleeved with a counterweight tube 42. The counterweight tube 42 passes through and is slidably connected to the sealing component 1.

[0035] During treatment, the sealing component 1 is installed on the incision to seal the incision. At this time, the air inlet end of the suction tube 2 and the air inlet end of the liquid suction tube 4 are both located in the chest cavity. The suction tube 2 floats on the top of the chest cavity under the action of the buoyancy of the gas in its micro-airbag 22, while the liquid suction tube 4 slides to the bottom of the chest cavity under the action of the gravity of its counterweight tube 42 and enters the liquid in the chest cavity; when the suction treatment operation is performed, the first negative pressure component 3 forms a negative pressure on the suction tube 2, and the gas is gradually sucked out from the suction port 21. As the gas descends, the suction tube 2 slides relative to the sealing component 1, and the micro-airbag 22 always floats on the gas The second negative pressure component 5 forms a negative pressure on the suction tube 4, and gradually sucks out the liquid from the suction port 41 until the suction of gas and liquid is completed; during the whole operation, the suction tube 2 and the suction tube 4 are in a separated state, and negative pressure can be formed by the first negative pressure component 3 and the second negative pressure component 5 respectively, and the suction tube 2 and the suction tube 4 can be controlled respectively, so as to improve the problem of inaccurate drainage in the existing single-tube drainage method, and during the whole process, the micro airbag 22 floats on the gas to prevent liquid from entering the suction tube 2, and the suction port 41 is buried in the liquid to prevent gas from entering the suction tube 4.

[0036] The micro airbag 22 can be made of biocompatible silicone, with an inflation volume of 0.5-1 mL, a diameter of about 1 cm, and a density of <0.5 g / cm after inflation. 3 , using buoyancy to automatically float to the top of the chest cavity.

[0037] The first negative pressure assembly 3 includes an air guide tube 31 whose air inlet end is connected to the air outlet end of the air suction pipe 2 and a first negative pressure regulating bottle 32 connected to the air outlet end of the air guide tube 31. A partition is arranged in the middle of the first negative pressure regulating bottle 32. The partition separates the first negative pressure regulating bottle 32 into a gas conversion cavity 321 and a first negative pressure adjustment chamber 322. The gas conversion cavity 321 and the first negative pressure adjustment chamber 322 are connected through a transfer tube 323. The first negative pressure adjustment chamber 322 is also connected to a negative pressure device (such as an electric pump) through a first negative pressure connecting tube 33. Liquid (such as water) is arranged in the first negative pressure adjustment chamber 322, and one end of the transfer tube 323 extends below the liquid surface. The air guide tube 31 extends into the gas conversion cavity 321.

[0038] Initial state and gas entry: When the gas in the chest cavity needs to be discharged during surgery, the gas in the chest cavity flows out through the suction tube 2. Since the suction tube 2 is connected to the chest cavity, the gas in the chest cavity will flow into the suction tube 2 under the action of the pressure difference, and then enter the air guide tube 31 of the first negative pressure component 3. The air inlet end of the air guide tube 31 is connected to the air outlet end of the suction tube 2, so that the gas can smoothly enter the first negative pressure component 3.

[0039] Flow of gas in the gas conversion cavity: the gas entering the air guide tube 31 is discharged from its gas outlet end and enters the gas conversion cavity 321. The gas conversion cavity 321 is a space formed by the partition separating the first negative pressure regulating bottle 32, and the gas temporarily stays and transitions in the gas conversion cavity.

[0040] The gas enters the first negative pressure regulating chamber through the transfer tube: the gas transfer chamber 321 and the first negative pressure regulating chamber 322 are connected through the transfer tube 323, and one end of the transfer tube 323 extends below the liquid surface in the first negative pressure regulating chamber 322. When the gas pressure in the gas transfer chamber 321 reaches a certain level, the gas will enter the first negative pressure regulating chamber 322 through the transfer tube 323. Since one end of the transfer tube 323 is below the liquid surface, the gas will pass through the liquid in the form of bubbles when entering, which can filter and buffer the gas to a certain extent, prevent the gas from directly and quickly impacting the negative pressure equipment, and can also preliminarily separate some impurities or small liquid particles in the gas.

[0041] Connection between the first negative pressure adjustment chamber and the negative pressure device and gas discharge: The first negative pressure adjustment chamber 322 is connected to the negative pressure device (such as an electric pump) through the first negative pressure connecting pipe 33. When the negative pressure device is working, a negative pressure environment will be formed in the first negative pressure adjustment chamber 322. Under the action of negative pressure, the gas entering the first negative pressure adjustment chamber 322 through the transfer pipe 323 is continuously sucked and discharged by the negative pressure device through the first negative pressure connecting pipe 33. At the same time, due to the presence of liquid in the first negative pressure adjustment chamber 322, during the gas discharge process, the liquid can also play a certain sealing role to prevent the outside air from flowing back into the system, thereby ensuring the stability of the negative pressure state of the system, so that the gas in the chest cavity can be continuously and stably discharged from the body through the suction pipe 2 and the first negative pressure component 3, so as to achieve the purpose of treating hydropneumothorax.

[0042] Among them, a barometer 311 and a first control valve 312 are provided on the airway tube 31. The barometer 311 can be used to understand the air pressure value in the airway tube 31 in real time, so as to understand the pressure change in the chest cavity, assist in judging the progress of the hydropneumothorax, find abnormalities in time, and ensure the safety and effect of the operation. The first control valve 312 can control the flow of gas in the airway tube 31, can open and close the airway tube 31, and can also adjust the gas flow rate. According to the needs of different stages of the operation, the exhaust speed can be flexibly adjusted. At the same time, it can also adjust the working state of the negative pressure system to adapt it to the gas discharge situation in the chest cavity.

[0043] The second negative pressure assembly 5 includes a liquid guide tube 51 and a second negative pressure regulating bottle 52. The liquid inlet end of the liquid guide tube 51 is connected to the liquid outlet end of the liquid pipette 4, and the liquid outlet end extends below the liquid level stored in the second negative pressure regulating bottle 52. The second negative pressure connecting pipe 53 is vertically connected to the bottle mouth of the second negative pressure regulating bottle 52, and the second negative pressure connecting pipe 53 is connected to the negative pressure device (such as an electric pump). A flow meter 511 and a one-way valve 512 are also provided on the liquid guide tube 51.

[0044] The liquid inlet end of the liquid guide tube 51 is connected to the liquid outlet end of the liquid pipette 4. After the liquid pipette 4 absorbs liquid from the chest cavity, the liquid is transported to the second negative pressure regulating bottle 52 through the liquid guide tube 51. The liquid outlet end of the liquid guide tube 51 extends below the liquid level stored in the second negative pressure regulating bottle 52. The liquid in the second negative pressure regulating bottle 52 can be used to buffer and stabilize the incoming liquid, avoiding the liquid from directly impacting the bottle wall or generating large fluctuations, and also preventing the gas from entering the negative pressure device with the liquid to a certain extent. The second negative pressure regulating bottle 52, as a container for storing liquid, can temporarily store the liquid sucked out from the chest cavity, which is convenient for subsequent processing and observation. The second negative pressure connecting pipe 53 is vertically connected to the bottle mouth of the second negative pressure regulating bottle 52 and connected to the negative pressure device. When the negative pressure device is working, a negative pressure environment is formed in the second negative pressure regulating bottle 52. This negative pressure environment is the power source that prompts the liquid to enter the second negative pressure regulating bottle 52 from the chest cavity through the liquid pipette 4 and the liquid guide tube 51, ensuring that the liquid can be sucked out continuously and stably.

[0045] The flow meter 511 is arranged on the catheter 51, and can measure the flow rate of the liquid passing through the catheter 51 in real time. The doctor can understand the speed and total amount of the liquid being sucked out of the chest cavity according to the value displayed by the flow meter, which is helpful to judge the situation of the pleural effusion and adjust the treatment plan in time. The presence of the one-way valve 512 can prevent the liquid from flowing back in the catheter 51.

[0046] As a parallel solution of the above solution, both the first negative pressure component 3 and the second negative pressure component 5 can use traditional closed chest drainage bottles for drainage.

[0047] like Figure 1-Figure 4 The air inlet 21 is opened through the radial side wall of the air inlet pipe 2 , and the micro airbag 22 is provided with an air inlet 221 connected to the air inlet 21 along the radial direction of the air inlet pipe 2 .

[0048] During the inhalation process, the air inlet 221 opens laterally and is connected to the air inlet 21 to form a lateral air inlet path, thereby ensuring that the gas smoothly enters the air inlet pipe 2 .

[0049] like Figure 3-Figure 4 The micro airbag 22 covers the axial end side of the air inlet end of the air intake pipe 2. In extreme cases, even if the air intake pipe 2 comes into contact with the liquid in the chest cavity, it is the micro airbag 22 that comes into contact with the liquid, and on the basis of the lateral opening of the air inlet 221, the liquid is prevented from entering the air intake pipe 2.

[0050] On the basis of the above embodiment, a first receiving groove is opened on the side wall of the air intake pipe 2 to fix and install the micro airbag 22, and the micro airbag 22 can be retracted into the first receiving groove when it is deflated.

[0051] like Figure 5-Figure 6 The liquid suction port 41 is opened through the radial side wall of the liquid suction tube 4, and a blocking plate 43 is fixedly connected to the axial end side of the liquid inlet end of the liquid suction tube 4, and the counterweight tube 42 abuts against the blocking plate 43 and can form a closure for the liquid suction port 41.

[0052] When the suction tube 4 is inserted into the chest cavity and passes through the gas layer and enters the liquid layer, the counterweight tube 42 abuts against the blocking plate 43 and forms a closure for the suction port 41 to prevent gas from entering the suction port 41. When the suction port 41 enters the liquid layer under the action of the counterweight tube 42, force is applied to the counterweight tube 42 to make it slide relative to the suction tube 4, thereby opening the suction port 41.

[0053] The weight tube 42 can be made of medical stainless steel, weighing about 2-3g, with a density of >1.2g / cm 3 , use gravity to guide the suction tube 4 to sink to the bottom of the chest cavity.

[0054] like Figure 5-Figure 6 The end of the counterweight tube 42 away from the blocking plate 43 is fixedly connected with an ear plate 421 , and the ear plate 421 is threadedly connected with a screw 422 abutting against the sealing assembly 1 .

[0055] After the counterweight tube 42 is slid relative to the suction tube 4 to open the suction port 41, force can be applied to the screw 422 to cause the screw 422 to rotate and abut against the sealing assembly 1 to lift the counterweight tube 42 so that the suction port 41 remains open and liquid can continue to enter the suction tube 4.

[0056] like Figure 5-Figure 6 A buffer layer 44 is fixedly connected to the side of the blocking plate 43 facing away from the liquid suction tube 4 .

[0057] When the weight tube 42 and the pipette 4 move to the bottom of the chest cavity at the same time under the gravity of the weight tube 42, the buffer layer 44 abuts against the bottom of the chest cavity to form a buffering effect to prevent damage to human tissues, such as lung lobes.

[0058] The buffer layer 44 can be made of materials such as medical rubber or medical silicone to avoid scratching the pleura or lung tissue.

[0059] like Figure 1-Figure 6 The sealing assembly 1 includes a sealing block 11, an inner airbag 12 and an outer airbag 13. The inner airbag 12 and the outer airbag 13 are arranged at intervals and are both connected to the outside of the sealing block 11, and the inner airbag 12 is closer to the air inlet end of the intake pipe 2 than the outer airbag 13.

[0060] When the sealing assembly 1 is installed on the incision to seal the incision, the sealing block 11 abuts against the side of the incision, the inner airbag 12 abuts against the inside of the incision, and the outer airbag 13 abuts against the outside of the incision, forming an internal and external seal to prevent external air from entering the chest cavity through the incision under the action of negative pressure in the chest cavity.

[0061] The sealing block 11 can be made of materials such as medical rubber or medical silicone.

[0062] like Figure 1-Figure 6 The liquid-pneumothorax suction device described in the present invention also includes an inflation and deflation assembly 6, which includes a four-way valve 61, three hoses 62 and three hard tubes 63. The air inlet end of the four-way valve 61 is used to connect to the air compressor, one end of the three hoses 62 is respectively connected to the three air outlet ends of the four-way valve 61, and the other end is respectively connected to one end of each hard tube 63, the other end of one of the hard tubes 63 is connected to the micro airbag 22, and the other ends of the other two hard tubes 63 are respectively connected to the inner airbag 12 and the outer airbag 13.

[0063] When the sealing assembly 1 is installed on the incision and the incision is sealed, the inner airbag 12, the outer airbag 13 and the micro airbag 22 are inflated in sequence through the air compressor and the four-way valve 61 to achieve sealing of the incision.

[0064] As a specific solution of the present invention, an embedding groove 23 is opened on the side wall of the intake pipe 2. The embedding groove 23 is an arc-shaped groove and is adapted to one of the hard tubes 63 to install one of the hard tubes 63, so that when the intake pipe 2 slides, it can drive one of the hard tubes 63 to slide at the same time.

[0065] The hard tube 63 connected to the inner airbag 12 is in an “L”-shaped structure and is embedded in the sealing block 11 .

[0066] On the basis of the above embodiment, the intake pipe 2 is threadedly connected with a limiting nut 24, so that when the intake pipe 2 slides inward to the top of the chest cavity and the requirement for gas discharge has been met, the position of the intake pipe 2 can be limited by tightening the limiting nut 24 so that the limiting nut 24 abuts against the sealing block 11.

[0067] like Figure 1-Figure 3 The outer airbag 13 is fixedly connected with a fixing ring 131, and the fixing ring 131 is threadedly connected to the sealing block 11. In order to adjust the spacing between the inner airbag 12 and the outer airbag 13 by rotation, the smooth sealing of the incision is ensured.

[0068] Specifically, an annular groove is provided on the outer side of the sealing block 11 to realize the threaded installation of the fixing ring 131. In the process of installing the sealing block 11, the matching hose 62 and the hard tube 63 can be separated first, and then the two can be connected after being installed in place. Specifically, when in use, the inner airbag 12 can be inflated first, and then the outer airbag 13 can be inflated. After the incision is sealed, the micro airbag 22 can be inflated.

[0069] Based on the above embodiment, a second accommodating groove is opened on the side wall of the sealing block 11 to install the inner airbag 12 and the outer airbag 13, so that the inner airbag 12 and the outer airbag 13 can retract into the corresponding second accommodating groove when they are deflated.

[0070] like Figure 1-Figure 3 The outer side surface of the sealing block 11 is a curved surface structure, so that the curved surface structure can be in surface contact with the incision to reduce the stimulation to the incision.

[0071] like Figure 7 As shown, a method for controlling the application of a hydropneumothorax suction device comprises the following steps:

[0072] S1. During treatment, the sealing assembly 1 is installed on the incision to seal the incision;

[0073] S2, the first negative pressure component 3 forms a negative pressure on the air intake pipe 2, and gradually sucks the gas out from the air intake port 21;

[0074] S3, the second negative pressure component 5 forms negative pressure on the liquid suction tube 4, and gradually sucks the liquid out from the liquid suction port 41 until the gas and liquid are sucked out.

[0075] The specific implementation and principle of each of the above steps can be understood in conjunction with the description of the above device.

[0076] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A hydropneumothorax suction device, comprising a suction tube (2), a liquid suction tube (4), a first negative pressure component (3) and a second negative pressure component (5), characterized in that: It also includes a sealing component (1), the air intake pipe (2) passes through and is slidably connected to the sealing component (1), the air intake end of the air intake pipe (2) is provided with an air intake port (21) and is fixedly connected to a micro air bag (22), the air outlet end of the air intake pipe (2) is connected to the first negative pressure component (3), the liquid intake end of the liquid suction pipe (4) is provided with a liquid suction port (41), and the liquid outlet end is connected to the second negative pressure component (5), the liquid suction pipe (4) is parallel to the air intake pipe (2), and is sleeved with a counterweight pipe (42), and the counterweight pipe (42) passes through and is slidably connected to the sealing component (1).

2. A hydropneumothorax suction device as claimed in claim 1, characterized in that: The air intake port (21) is opened through the radial side wall of the air intake pipe (2), and the micro airbag (22) is provided with an air inlet (221) connected to the air intake port (21) along the radial direction of the air intake pipe (2).

3. A hydropneumothorax suction device as claimed in claim 2, characterized in that: The micro airbag (22) covers the axial end side of the air inlet end of the air intake pipe (2).

4. A hydropneumothorax suction device as claimed in claim 1, characterized in that: The liquid suction port (41) is opened through the radial side wall of the liquid suction pipe (4), and a blocking plate (43) is fixedly connected to the axial end side of the liquid inlet end of the liquid suction pipe (4), and the counterweight tube (42) abuts against the blocking plate (43) and can form a closure for the liquid suction port (41).

5. A hydropneumothorax suction device as claimed in claim 4, characterized in that: An end of the counterweight tube (42) away from the blocking plate (43) is fixedly connected to an ear plate (421), and the ear plate (421) is threadedly connected to a screw rod (422) abutting against the sealing assembly (1).

6. A hydropneumothorax suction device as claimed in claim 4, characterized in that: A buffer layer (44) is fixedly connected to the side of the blocking plate (43) facing away from the liquid suction tube (4).

7. A hydropneumothorax suction device according to claim 1, characterized in that: The sealing assembly (1) comprises a sealing block (11), an inner airbag (12) and an outer airbag (13); the inner airbag (12) and the outer airbag (13) are arranged at intervals and are both connected to the outer side of the sealing block (11); and the inner airbag (12) is closer to the air inlet end of the intake pipe (2) relative to the outer airbag (13).

8. A hydropneumothorax suction device as claimed in claim 7, characterized in that: The invention also comprises an air-charging and air-discharging assembly (6), wherein the air-charging and air-discharging assembly (6) comprises a four-way valve (61), three hoses (62) and three hard tubes (63), wherein the air inlet end of the four-way valve (61) is used to be connected to an air compressor, one end of the three hoses (62) is respectively connected to the three air outlet ends of the four-way valve (61), and the other end is respectively connected to one end of each of the hard tubes (63), wherein the other end of one of the hard tubes (63) is connected to the micro airbag (22), and the other ends of the other two hard tubes (63) are respectively connected to the inner airbag (12) and the outer airbag (13).

9. A hydropneumothorax suction device as claimed in claim 8, characterized in that: The outer air bag (13) is fixedly connected to a fixing ring (131), and the fixing ring (131) is threadedly connected to the sealing block (11). The outer side surface of the sealing block (11) is a curved surface structure.

10. An application control method of a hydropneumothorax suction device, characterized in that: The steps include: S1. During treatment, the sealing assembly (1) is installed on the incision to seal the incision; S2, the first negative pressure component (3) forms a negative pressure on the air intake pipe (2), and gradually sucks the gas out from the air intake port (21); S3, the second negative pressure component (5) forms negative pressure on the liquid suction tube (4), and gradually sucks the liquid out from the liquid suction port (41) until the gas and liquid are sucked out.

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