CN217187183U - Simple and easy portable thorax closed drainage water-sealed bottle - Google Patents

Abstract

The utility model belongs to the technical field of medical instruments, in particular to a simple and portable thoracic cavity closed drainage water-sealed bottle, which comprises a negative pressure drainage bottle, the capacity of which is less than or equal to 500ml, and the bottle is used for storing water-sealed solution and collecting pleural effusion and gas; the drainage tube assembly is arranged on the negative pressure drainage bottle and is used for draining pleural effusion and gas; and the exhaust unit is arranged at the top of the negative pressure drainage bottle and is used for communicating the inside of the negative pressure drainage bottle with the atmosphere so as to facilitate the discharge of the collected gas in the negative pressure drainage bottle. The utility model provides a simple and easy portable thorax closed drainage water-sealed bottle, overall structure is simple not only, small, portable, moreover can be effectual the gas outgoing condition of being convenient for and whether unobstructed observation of drainage tube, provide great help for clinical.

Description

Simple and easy portable thorax closed drainage water-sealed bottle

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to simple and easy handy thorax closed drainage water-sealed bottle.

Background

At present, a patient after a thoracic surgery usually needs to keep a thoracic drainage tube so as to discharge pleural effusion and gas and accelerate the healing of a wound; the tail end of the thoracic drainage tube can be connected with a thoracic closed drainage bottle or a negative pressure drainage bag to collect pleural effusion and gas.

In the prior art, the closed thoracic drainage bottle is generally designed with a large capacity of 1600ml-2000ml, is generally suitable for patients hospitalized after operation, and has the problems of large volume and inconvenient carrying for patients who have partial drainage volume which does not reach the tube drawing standard or have air leakage in the lung and can be discharged with a tube; the negative pressure drainage bag has the advantages of small volume and convenient carrying, but has the problems that only pleural effusion can be drained, the gas discharge condition cannot be judged, and whether the drainage tube is smooth or not, and the like, thereby bringing great inconvenience for clinic.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides a simple and easy portable thorax closed drainage water-sealed bottle, which has simple integral structure, small volume and convenient carrying, can effectively observe whether the gas discharge condition and the drainage tube are unobstructed or not, and provides great help for clinic.

The utility model discloses the technological effect that will reach realizes through following technical scheme:

the simple and portable thoracic cavity closed drainage water-sealed bottle comprises a negative pressure drainage bottle, the capacity of which is less than or equal to 500ml, and the bottle is used for storing water-sealed solution and collecting pleural effusion and gas; the drainage tube assembly is arranged on the negative pressure drainage bottle and is used for draining pleural effusion and gas; and the exhaust unit is arranged at the top of the negative pressure drainage bottle and used for realizing the communication between the inside of the negative pressure drainage bottle and the atmosphere and facilitating the discharge of the collected gas in the negative pressure drainage bottle. The utility model provides a thorax closed drainage water-sealed bottle, through the negative pressure drainage bottle that capacity is less than or equal to 500ml, locate drainage tube subassembly on the negative pressure drainage bottle and locating the exhaust unit at negative pressure drainage bottle top combines together, comes to carry out the drainage to patient's pleural effusion and gas, and overall structure is simple not only, small, portable, and can effectually be convenient for the gas outgoing condition and whether unobstructed observation of drainage tube in addition provide great help for clinical.

As a preferred scheme, the negative pressure drainage bottle comprises a transparent drainage bottle body and a bottle cap detachably arranged at the top of the drainage bottle body; the drainage bottle body and the bottle cap are connected into a whole in a detachable connection mode, so that the addition of a water sealing solution and the installation and fixation of the drainage pipe assembly are facilitated, and when one part is damaged, the damaged part can be detached and replaced independently without scrapping the whole negative-pressure drainage bottle, and the product cost is effectively saved.

As one of the preferred schemes, the drainage bottle body and the bottle cap are made of plastic materials, and the wall thickness of the drainage bottle body is less than or equal to 1 mm. Preferably, the drainage bottle body and the bottle cap are made of PP, PE or TPX materials, and the PP, PE and TPX materials are light plastics, so that the assembled negative pressure drainage bottle body and the bottle cap made of the materials have lower overall quality, and the overall portability of the closed thoracic drainage water-sealed bottle is further improved; further preferably, the wall thickness of the drainage bottle body is 0.2mm-0.6mm, so that the integral quality of the negative pressure drainage bottle can be prevented from being increased due to overlarge wall thickness of the drainage bottle body, and the drainage bottle body can be prevented from being damaged or deformed easily due to the fact that the wall thickness of the drainage bottle body is too small.

As one preferable scheme, an effusion volume mark convenient for observing the collection amount of the pleural effusion is arranged on one side of the drainage bottle body, and a water seal volume mark convenient for observing the input amount of the water seal solution is arranged at the bottom of the other opposite side; preferably, the highest scale of the water seal volume mark is not more than 5cm, the effect of limiting the addition amount of the water seal solution is achieved by limiting the highest scale of the water seal volume mark, so that gas in the thoracic cavity can be discharged only by overcoming large pressure due to the fact that the water seal solution is too deep, and the exhaust of a patient is affected.

As a preferred scheme, the negative pressure drainage bottle further comprises an anti-skid and anti-tilt base which is detachably arranged at the bottom of the body of the drainage bottle and is used for preventing the negative pressure drainage bottle from being wholly tilted; when negative pressure drainage bottle removed, can dismantle the drainage bottle body from the anti-skidding base of preventing inclining and get off, be convenient for alleviate the holistic weight of negative pressure drainage bottle, further improve the holistic portability of thorax closed drainage water-sealed bottle, when negative pressure drainage bottle need be placed, can install drainage bottle body on the anti-skidding base of preventing inclining, prevent to empty because of negative pressure drainage bottle and lead to patient's thorax and atmosphere direct intercommunication, form open pneumothorax. Preferably, the anti-skid and anti-tilt base is made of rubber or silicon rubber with good anti-skid performance.

As a preferable scheme, the drainage tube component comprises a pipeline connecting piece which is arranged on the bottle cap and used for integrally installing and connecting the component, a connecting pipeline with one end communicated with the top of the pipeline connecting piece and the other end communicated with the thoracic cavity of a patient, and a water-sealed pipeline unit which is connected with the bottom of the pipeline connecting piece and extends to the position below the liquid level of a water-sealed solution; the drainage tube assembly is used for connecting the drainage tube unit with the drainage tube unit, the connecting tube unit is used for draining pleural effusion and gas, and the drainage tube unit is used for extending below the liquid level of a water-sealing solution to achieve the effect of water sealing, so that the direct communication of the patient's thoracic cavity with the atmosphere through the drainage tube assembly is avoided, and an open pneumothorax is formed; after the drainage tube assembly is communicated with the thoracic cavity of a patient, the gas discharge condition can be effectively observed through bubbles of the water seal solution, and whether the drainage tube is unobstructed or not is judged.

As one of the preferable schemes, the pipeline connecting piece is an elastic sealing connecting piece, which comprises an elastic sealing part which is matched with the bottle cap and used for sealing the negative pressure drainage bottle, a drainage connecting part which is convexly arranged at the top of the elastic sealing part and used for being connected with the connecting pipeline, a water sealing connecting part which is convexly arranged at the bottom of the elastic sealing part and used for being connected with the water sealing pipeline unit, and drainage holes which are arranged on the axial leads of the elastic sealing part, the drainage connecting part and the water sealing connecting part.

As a preferred scheme, the water-sealed pipeline unit comprises a water-sealed pipeline with one end communicated with the bottom of the pipeline connecting piece and the other end extending to the bottom of the drainage bottle body, and a pipeline falling piece arranged at the bottom of the water-sealed pipeline and used for preventing the bottom of the water-sealed pipeline from floating above the liquid level of the water-sealed solution; the pipeline weighs the piece and can add the weight of water seal pipeline bottom, makes water seal pipeline bottom remain in drainage bottle body bottom all the time, and effectual water seal pipeline of avoiding rocks and removes to water seal solution liquid level top because of the negative pressure drainage bottle, makes patient's thorax directly communicate with each other with the atmosphere, forms open pneumothorax.

As a preferable scheme, the exhaust unit is an exhaust hole unit or a needle exhaust unit; the exhaust hole unit comprises an exhaust hole arranged at the top of the negative pressure drainage bottle and a filter screen film arranged on the exhaust hole; the needle head exhaust unit comprises a needle head which is arranged on the pipeline connecting piece in a penetrating mode and communicated with the inside of the negative pressure drainage bottle, and a one-way check valve arranged at the top of the needle head. The needle head is a simple and easily-obtained raw material clinically, the negative pressure drainage bottle can be communicated with the atmosphere only by pricking the top of the negative pressure drainage bottle, and the aim of exhausting is fulfilled, so that the prepared closed thoracic drainage water-sealed bottle is simple in overall structure, and the assembly and connection mode is quick and efficient; to ensure the rate of needle deflation, the inside diameter of the needle is preferably 0.4mm or more. On syringe needle top, filter screen membrane located the exhaust hole, not only can make the inside inclosed space that forms of negative pressure drainage bottle, be favorable to the balance of negative pressure drainage bottle inside and outside atmospheric pressure, can effectually prevent the entering of harmful substance such as bacterium in addition, make the chest cavity closed drainage water-sealed bottle form aseptic environment, avoid causing the infection to patient's chest because of harmful substance such as bacterium gets into.

As one preferable scheme, the negative pressure drainage bottle also comprises a portable handle convenient for the whole negative pressure drainage bottle to carry; the portable handle can be arranged on the drainage bottle body, the bottle cap or between the drainage bottle body and the bottle cap according to actual needs. Preferably, the portable handle is a soft or hard lifting handle, and in order to prevent the negative pressure drainage bottle from toppling over during carrying, when the portable handle is a soft lifting handle, the portable handle needs to be symmetrically arranged on the drainage bottle body, the bottle cap or between the drainage bottle body and the bottle cap.

To sum up, the utility model discloses at least, following useful part has:

1. the utility model discloses simple and easy handy thorax closed drainage water-sealed bottle, overall structure is simple not only, small, portable, moreover can be effectual the gas outgoing condition of being convenient for and whether unobstructed observation of drainage tube, provide great help for clinical.

2. The utility model discloses simple and easy handy thorax closed drainage water-sealed bottle can effectually prevent that negative pressure drainage bottle from empting and guaranteeing the water seal effect of drainage tube subassembly, avoids the direct and atmosphere of patient's thorax to be linked together, forms open pneumothorax.

Drawings

Fig. 1 is a schematic view of the overall structure of a simple and portable closed thoracic drainage water-sealed bottle in the embodiment of the present invention;

FIG. 2 is a schematic structural view of a negative pressure drainage bottle in an embodiment of the present invention;

FIG. 3 is a schematic structural view of an anti-slip and anti-roll base according to an embodiment of the present invention;

FIG. 4 is a schematic view of an embodiment of the draft tube assembly of the present invention;

FIG. 5 is a sectional view of a pipe coupling according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of a needle venting unit according to an embodiment of the present invention;

fig. 7 is another overall structure diagram of the simple portable closed thoracic drainage water-sealed bottle in the embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention will be combined to clearly and completely describe the technical solutions of the embodiments of the present invention. The described embodiments are some, but not all embodiments of the invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

referring to fig. 1, the simple and portable closed thoracic drainage water-sealed bottle in this embodiment includes a negative pressure drainage bottle 10 with a capacity of less than or equal to 500ml, a drainage tube assembly 20 disposed on the negative pressure drainage bottle 10, and an exhaust unit 30 disposed at the top of the negative pressure drainage bottle 10; wherein, negative pressure drainage bottle 10 is used for depositing and the collection of pleural effusion and gaseous of water seal solution, and drainage tube subassembly 20 is used for the drainage of pleural effusion and gaseous, and exhaust unit 30 is used for realizing the inside and atmospheric intercommunication of negative pressure drainage bottle, the gaseous discharge of collection in the negative pressure drainage bottle of being convenient for.

Referring to fig. 2, the negative pressure drainage bottle 10 includes a transparent drainage bottle body 11 for observing the internal condition of the bottle, and a bottle cap 12 detachably mounted on the top of the drainage bottle body 11; the drainage bottle body 11 and the bottle cap 12 are connected into a whole in a detachable connection mode, so that not only is the addition of water sealing solution facilitated and the installation and fixation of the drainage tube assembly 20 facilitated, but also when one of the components is damaged, the damaged component can be detached and replaced independently, the whole negative pressure drainage bottle does not need to be scrapped, and the product cost is effectively saved; preferably, the drainage bottle body 11 and the bottle cap 12 are connected into a whole in a threaded connection or a buckling connection manner.

The drainage bottle body 11 and the bottle cap 12 are made of plastic materials, and the wall thickness of the drainage bottle body 11 is less than or equal to 1 mm. Preferably, the drainage bottle body 11 and the bottle cap 12 are made of PP, PE or TPX materials, and the PP, PE and TPX materials are light plastics, so that the assembled negative pressure drainage bottle 10 has low overall quality by utilizing the drainage bottle body 11 and the bottle cap 12 which are prepared from the materials, and the overall portability of the closed type drainage water-sealed bottle for the thoracic cavity is further improved; further preferably, the wall thickness of the drainage bottle body 11 is 0.2mm-0.6mm, which not only can prevent the drainage bottle body 11 from increasing the overall quality of the negative pressure drainage bottle 10 due to too large wall thickness, but also can prevent the drainage bottle body 11 from being easily damaged or deformed due to too small wall thickness. Furthermore, an effusion volume mark 111 convenient for observing the collection amount of the pleural effusion is arranged on one side of the drainage bottle body 11, and a water seal volume mark 112 convenient for observing the input amount of the water seal solution is arranged at the bottom of the other opposite side; preferably, the highest scale of the water seal volume mark 102 is not more than 5cm, and the effect of limiting the addition amount of the water seal solution is achieved by limiting the highest scale of the water seal volume mark 112, so that gas in the thoracic cavity can be discharged by overcoming a larger pressure to influence the exhaust of a patient if the water seal solution is too deep.

The pleural closed drainage water-sealed bottle in the embodiment is used for draining pleural effusion and gas of a patient by combining the negative pressure drainage bottle 10 with the capacity of less than or equal to 500ml, the drainage tube assembly 20 arranged on the negative pressure drainage bottle 10 and the exhaust unit 30 arranged at the top of the negative pressure drainage bottle 10, so that the pleural effusion and gas drainage bottle is simple in integral structure, small in size and convenient to carry, can effectively facilitate observation of gas discharge conditions and smoothness of the drainage tube, and provides great help for clinic; and the negative pressure drainage bottle 10, the drainage tube assembly 20 and the exhaust unit 30 are all made of materials which are simple and easy to obtain clinically, so that the product development and design cost can be effectively saved by simple assembly.

Example 2:

simple and easy portable thorax closed drainage water-sealed bottle is the same with embodiment 1 in this embodiment, and its main difference lies in:

referring to fig. 2, in the present embodiment, the negative pressure drainage bottle 10 further includes an anti-slip and anti-tilt base 13 detachably mounted at the bottom of the drainage bottle body 11 for preventing the negative pressure drainage bottle 10 from tilting integrally; when negative pressure drainage bottle 10 removed, can prevent inclining base 13 and dismantle drainage bottle body 11 from the antiskid, be convenient for alleviate the holistic weight of negative pressure drainage bottle 10, further improve the holistic portability of thorax closed drainage water-sealed bottle, when negative pressure drainage bottle 10 need be placed, can install drainage bottle body 11 on the antiskid prevents inclining base 13, prevent to empty and lead to patient's thorax and the direct intercommunication of atmosphere because of negative pressure drainage bottle 10, form open pneumothorax. Preferably, the anti-skid and anti-tilt base 13 is made of rubber or silicon rubber with good anti-skid performance, please refer to fig. 3 further, the specific structure thereof includes a base body 131, a bottle body mounting groove 132 disposed on the base body 131 and adapted to the drainage bottle body 11, and an elastic protrusion 133 protruding on the surface of the bottle body mounting groove 132; the design of elastic bulge 133 can effectually reduce the area that base 13 whole and drainage bottle body 11 contact are prevented inclining in the antiskid, the quick installation and the dismantlement of drainage bottle body 11 of being convenient for.

Example 3:

simple and easy portable thorax closed drainage water-sealed bottle is the same with embodiment 1 or 2 in this embodiment, and its main difference lies in:

referring to fig. 1 and 2, the simple and portable closed thoracic drainage water-sealed bottle of the present embodiment further includes a portable handle 40 for the integral carrying of the negative pressure drainage bottle 10, and the portable handle 40 may be disposed on the drainage bottle body 11, the bottle cap 12, or between the drainage bottle body 11 and the bottle cap 12 according to actual requirements; preferably, the portable handle 40 is a soft or hard handle, and in order to prevent the negative pressure drainage bottle 10 from falling down during carrying, when the portable handle 40 is a soft handle, it is symmetrically disposed on the drainage bottle body 11, the bottle cap 12, or between the drainage bottle body 11 and the bottle cap 12.

Example 4:

the simple and portable closed thoracic drainage water-sealed bottle in the embodiment is further designed for the drainage tube assembly 20 on the basis of any design of the embodiments 1 to 3:

referring to fig. 4, the drainage tube assembly 20 includes a tube connector 21 installed on the bottle cap 12 for integrally installing and connecting the assembly, a connection tube 22 having one end connected to the top of the tube connector 21 and the other end connected to the thoracic cavity of the patient, and a water-sealed tube unit 22 connected to the bottom of the tube connector 21 and extending below the liquid level of the water-sealed solution; the pipeline connecting piece 21 is used for connecting the connecting pipeline 22 with the water seal pipeline unit 23, the connecting pipeline 22 is used for draining pleural effusion and gas, and the water seal pipeline unit 23 is used for extending below the liquid level of a water seal solution to achieve the water seal effect, so that the direct communication of the patient thoracic cavity with the atmosphere through a drainage tube component is avoided, and an open pneumothorax is formed; after the drainage tube assembly 20 is communicated with the thoracic cavity of a patient, the gas discharge condition can be effectively observed through bubbles of the water seal solution, and whether the drainage tube is smooth or not is judged.

Referring to fig. 5, the pipe connector 21 is an elastic sealing connector, and includes an elastic sealing portion 211 adapted to the bottle cap 12 and used for sealing the negative pressure drainage bottle 10, a drainage connecting portion 212 protruding from the top of the elastic sealing portion 211 and used for connecting with the connecting pipe 22, a water sealing connecting portion 213 protruding from the bottom of the elastic sealing portion 211 and used for connecting with the water sealing pipe unit 23, and a drainage hole 214 formed on the axial leads of the elastic sealing portion 211, the drainage connecting portion 212, and the water sealing connecting portion 213; the drainage hole 214 is used for realizing the communication between the connecting pipeline 22 and the water seal pipeline unit 23, and the purpose of draining pleural effusion and gas is achieved. The water seal pipeline unit 23 comprises a water seal pipeline 231, one end of which is communicated with the bottom of the pipeline connecting piece 21, and the other end of which extends to the bottom of the drainage bottle body 11, and a pipeline falling piece 232 which is arranged at the bottom of the water seal pipeline 231 and is used for preventing the bottom of the water seal pipeline 231 from floating above the liquid level of the water seal solution; the pipeline weighs the water seal pipeline 231 bottom that can aggravate that the pipeline weighs, makes the water seal pipeline 231 bottom remain in drainage bottle body 11 bottom all the time, and effectual water seal pipeline 231 of avoiding rocks because of negative pressure drainage bottle 10 and removes to water seal solution liquid level top, makes patient's thorax directly communicate with each other with the atmosphere, forms open pneumothorax. Preferably, the pipe dropping member 232 is a silica gel weight bag tied to the bottom of the water seal pipe 231.

Example 5:

the simple and portable closed thoracic drainage water-sealed bottle in the embodiment is further designed for the exhaust unit 30 on the basis of any design of the embodiments 1 to 4:

referring to fig. 1, 4 and 6, the air exhaust unit 30 is a needle head air exhaust unit, and comprises a needle head 31 which is arranged on the pipeline connecting piece 21 and is communicated with the inside of the negative pressure drainage bottle 10, and a one-way check valve 32 arranged at the top of the needle head 31, the needle head 31 is a raw material which is simple and easy to obtain clinically, the communication between the negative pressure drainage bottle 10 and the atmosphere can be realized as long as the needle head is pricked into the top of the negative pressure drainage bottle 10, and the purpose of air exhaust is achieved, so that the prepared thoracic cavity closed drainage water-sealed bottle is not only simple in integral structure, but also is quick and efficient in assembly connection mode; to ensure the rate of venting of the needle 31, the inner diameter of the needle 31 is preferably ≧ 0.4 mm. The syringe needle 31 top is located to one-way check valve 32, and gaseous can only be discharged in the negative pressure drainage bottle 10, and can not admit air in to negative pressure drainage bottle 10, not only can make the inside inclosed space that forms of negative pressure drainage bottle 10, be favorable to the inside and outside atmospheric pressure balance in negative pressure drainage bottle 10, but also can effectually prevent the entering of harmful substance such as bacterium, make the interior sterile environment that forms of thorax closed drainage water-sealed bottle, avoid causing the infection to patient's thorax because of harmful substance such as bacterium gets into.

Example 6:

the simple and portable closed thoracic drainage water-sealed bottle in the embodiment is further designed for the exhaust unit 30 on the basis of any design of the embodiments 1 to 4:

referring to fig. 7, the exhaust unit 30 is an exhaust hole unit, and includes an exhaust hole 31 ' formed at the top of the negative pressure drainage bottle 10, and a filter screen film 32 ' disposed on the exhaust hole 31 '; in order to ensure the exhaust rate of the exhaust holes 31 ', the aperture of the exhaust holes 31' is preferably larger than or equal to 3 mm; the filter screen film 32' is not only beneficial to the balance of the internal and external atmospheric pressures of the negative pressure drainage bottle 10, and can enable the negative pressure drainage bottle 10 to form a closed space, but also can effectively prevent harmful substances such as bacteria from entering, so that a sterile environment is formed in the closed thoracic drainage water-sealed bottle, and infection of the thoracic cavity of a patient caused by the entering of the harmful substances such as bacteria is avoided.

According to the technical scheme of above-mentioned embodiment, the utility model provides a simple and easy handy thorax closed drainage water-sealed bottle, overall structure is simple not only, small, portable, but also can effectually be convenient for the gas outgoing condition and whether unobstructed observation of drainage tube, provide great help for clinical.

In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

While the invention has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the spirit and scope of the appended claims.

Claims (10)

1. The utility model provides a simple and easy portable thorax closed drainage water-sealed bottle which characterized in that includes:

the negative pressure drainage bottle with the capacity less than or equal to 500ml is used for storing water sealing solution and collecting pleural effusion and gas;

the drainage tube assembly is arranged on the negative pressure drainage bottle and is used for draining pleural effusion and gas; and the exhaust unit is arranged at the top of the negative pressure drainage bottle and used for realizing the communication between the inside of the negative pressure drainage bottle and the atmosphere and facilitating the discharge of the collected gas in the negative pressure drainage bottle.

2. The closed thoracic drainage water-sealed bottle of claim 1, wherein the negative pressure drainage bottle comprises a transparent drainage bottle body and a bottle cap detachably mounted on the top of the drainage bottle body.

3. The closed thoracic drainage water-sealed bottle of claim 2, wherein the bottle body and the bottle cap are made of plastic, and the wall thickness of the bottle body is less than or equal to 1 mm.

4. The closed thoracic drainage water-sealed bottle according to claim 2, wherein a fluid volume indicator for observing the collection amount of the pleural fluid is disposed on one side of the bottle body of the bottle, and a water-sealed volume indicator for observing the input amount of the water-sealed solution is disposed on the bottom of the other opposite side.

5. The closed thoracic drainage water-sealed bottle of claim 2, wherein the negative pressure drainage bottle further comprises an anti-slip and anti-tilt base detachably mounted at the bottom of the bottle body of the drainage bottle for preventing the negative pressure drainage bottle from being wholly tilted.

6. The closed thoracic drainage water-sealed bottle according to claim 1, wherein the drainage tube assembly comprises a tube connector installed on the bottle cap for integral installation and connection of the assembly, a connection tube having one end communicating with the top of the tube connector and the other end communicating with the thoracic cavity of the patient, and a water-sealed tube unit connected to the bottom of the tube connector and extending below the level of the water-sealed solution.

7. The thoracic closed drainage water-sealed bottle according to claim 6, wherein the pipe connection member is an elastic sealing connection member, and comprises an elastic sealing portion matched with the bottle cap, a drainage connection portion protruding from the top of the elastic sealing portion and used for being connected with a connection pipeline, a water sealing connection portion protruding from the bottom of the elastic sealing portion and used for being connected with a water sealing pipeline unit, and a drainage hole arranged on the axial line of the elastic sealing portion, the drainage connection portion and the water sealing connection portion.

8. The closed thoracic drainage water-sealed bottle according to claim 6, wherein the water-sealed pipeline unit comprises a water-sealed pipeline with one end communicated with the bottom of the pipeline connecting piece and the other end extending to the bottom of the bottle body of the drainage bottle, and a pipeline dropping piece arranged at the bottom of the water-sealed pipeline and used for preventing the bottom of the water-sealed pipeline from floating above the liquid level of the water-sealed solution.

9. The closed thoracic drainage water-sealed bottle according to claim 1, wherein the air exhaust unit is an air exhaust hole unit or a needle air exhaust unit;

the exhaust hole unit comprises an exhaust hole arranged at the top of the negative pressure drainage bottle and a filter screen film arranged on the exhaust hole;

the needle head exhaust unit comprises a needle head which is arranged on the pipeline connecting piece in a penetrating mode and is communicated with the inside of the negative pressure drainage bottle, and a one-way check valve arranged at the top of the needle head.

10. The closed thoracic drainage water bottle of claim 1, further comprising a portable handle; the portable handle is arranged on the drainage bottle body, the bottle cap or between the drainage bottle body and the bottle cap.

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