A multifunctional closed chest drainage device

Abstract

The present invention is applicable to the technical field of medical devices, and provides a multifunctional closed chest drainage device, including a drainage bottle, a drainage bottle cap, a drainage tube, a water seal tube, an exhaust pipe and a disinfection bottle, wherein the drainage bottle cap is arranged at the top of the drainage bottle, the drainage bottle cap is connected to the drainage tube by a covering buckle structure, a two-way cross-buckle ratchet clamp is installed in the middle of the drainage tube, the bottom end opening of the drainage bottle cap is connected to the water seal tube, a funnel-shaped cavity structure is arranged at the lower end of the water seal tube, a plastic ball is arranged inside the funnel-shaped cavity structure, and the drainage bottle cap is also connected to the disinfection bottle through the exhaust pipe; the multifunctional closed chest drainage device proposed by the present invention can effectively avoid the problems of dirt and filth hidden at the bottle mouth, the backflow of dirty liquid, and the backflow of dirty liquid or external atmosphere into the chest cavity, and can also provide the patient's chest cavity exhaust, disinfection and sterilization function, effectively avoiding medical infection and hospital cross infection.

Description

Technical Field

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

[0002] Closed chest drainage is a medical term. Patients with traumatic hemothorax that affects respiratory and circulatory functions, or patients with pneumothorax that causes compression breathing (generally unilateral pneumothorax with lung compression of more than 50%) are placed in a semi-recumbent position, and the incision area is anesthetized locally with infiltration. A 2 cm skin incision is made along the intercostal course, and hemostatic forceps are inserted along the upper edge of the ribs into the chest cavity. A drainage tube (4-5 cm) is immediately inserted when liquid or gas is seen gushing out. The skin is sutured, and the drainage tube is ligated and fixed to the chest wall. The end of the drainage tube is connected to a water seal bottle. The drainage operation performed during and after the operation requires a closed chest drainage device.

[0003] The closed chest drainage device currently used in clinical practice can complete the intraoperative and postoperative drainage operations of closed chest drainage, but has the following problems: when medical staff replace the drainage fluid in the water-seal bottle, the liquid often flows back and contaminates the bottle body and the hands of medical staff during the pouring process, increasing the chance of nosocomial cross-infection; the bottle mouth and bottle cap are closed with a spiral mouth, which is easy to hide dirt and is not conducive to aseptic operation; when the patient mistakenly raises the drainage tube to a height higher than the intubation plane, the problem of siphoning the liquid in the drainage bottle into the chest cavity and causing retrograde infection cannot be solved; before medical staff replace the drainage fluid in the water-seal bottle, they need to temporarily and strictly clamp the drainage tube to prevent gas from entering the chest cavity, which has not been solved; finally, when the chest drainage material is infectious, the problem of nosocomial infection is directly exposed to the air, which has not been solved. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a multifunctional closed chest drainage device, aiming to solve the problems raised in the above-mentioned background technology.

[0005] The embodiment of the present invention is implemented as follows: a multifunctional chest closed drainage device includes a drainage bottle, a drainage bottle cap, a drainage tube, a water seal tube, an exhaust pipe and a disinfection bottle;

[0006] The drainage bottle cap is arranged at the top of the drainage bottle, the drainage bottle cap adopts a covering buckle structure, the top opening of the drainage bottle cap is connected to the drainage tube, and a bidirectional cross buckle ratchet clamp is installed in the middle of the drainage tube;

[0007] The bottom opening of the drainage bottle cap is connected to a water seal tube, and the lower end of the water seal tube is provided with a funnel-shaped cavity structure that is thick at the top and thin at the bottom, and a plastic ball is arranged inside the funnel-shaped cavity structure;

[0008] The drainage bottle cap is also connected to the disinfection bottle through an exhaust pipe.

[0009] Preferably, the drainage bottle comprises a spherical structure of the bottle mouth, a foot, a scale and a medical label;

[0010] The bottle mouth spherical structure is arranged at the top of the drainage bottle to prevent the liquid from flowing back and outwardly polluting the bottle body and medical staff during the dumping process of the drainage bottle;

[0011] The clamping feet 1 are located at two sides of the bottom of the bottle mouth spherical structure 1;

[0012] The scale is arranged on the side of the drainage bottle to facilitate observation of liquid level fluctuation and height;

[0013] The medical label 1 is pasted on the center position of the front of the drainage bottle, and the medical label 1 includes a name column, a time column and a time column.

[0014] Preferably, the drainage bottle cap comprises an air inlet hole 1, an air outlet hole 1, a sealing gasket 1 and a buckle 1;

[0015] The air inlet hole 1 and the air outlet hole 1 are arranged on the drainage bottle cap, and one air inlet hole 1 and one air outlet hole 1 are each provided, the upper end opening of the air inlet hole 1 is connected to the drainage tube, the lower end opening of the air inlet hole is connected to the water seal tube, and the upper end opening of the air outlet hole 1 is connected to the disinfection bottle through the exhaust pipe;

[0016] The sealing gasket 1 is arranged at the bottom end of the drainage bottle cap, and the sealing gasket 1 is adapted to the spherical structure 1 of the bottle mouth;

[0017] The buckle 1 is located on both sides of the drainage bottle cap, and the buckle 1 is matched with the clamping foot 1.

[0018] Preferably, one end of the drainage tube is connected to the patient's pleural cavity, and the lower part of the drainage tube is an inverted funnel-shaped cavity structure that is thin at the top and thick at the bottom. The thick end of the inverted funnel-shaped cavity structure is larger than the diameter of the plastic ball, and the thin end of the inverted funnel-shaped cavity structure is smaller than the diameter of the plastic ball.

[0019] Preferably, the bidirectional cross-clip ratchet clamp includes two flow restrictors, and the flow restrictors include a wedge-shaped bracket, a ratchet, a groove slide rail, a clip and a perforation;

[0020] The wedge-shaped bracket is installed on the drainage tube, and the ratchet is installed on the inner side of the wedge-shaped bracket;

[0021] The groove slide rail and the buckle are arranged on the upper surface of the wedge-shaped bracket, the through holes are arranged at both ends of the wedge-shaped bracket, and the drainage tube passes through the through holes to enter and exit the flow limiter.

[0022] Preferably, the disinfection bottle comprises a second spherical structure of the bottle mouth, a second clamping foot, a second medical label, an ultraviolet lamp, a bottom battery, a side wall switch and a disinfection bottle cap;

[0023] The second clamping foot is arranged on the top of the disinfection bottle, and the second bottle mouth spherical structure is installed on the second clamping foot;

[0024] The second medical label is pasted on the surface of the disinfection bottle;

[0025] The ultraviolet lamp is installed on the inner surface of the bottom of the disinfection bottle, the ultraviolet lamp is connected to the bottom battery through a wire, and the side wall switch is located outside the bottom of the disinfection bottle and is used to control the working state of the ultraviolet lamp.

[0026] Preferably, the sterilizing bottle cap comprises two air inlet holes, two air outlet holes, two sealing gaskets and two buckles;

[0027] The second air inlet hole and the second air outlet hole are arranged on the cap of the sterilizing bottle, the second air inlet hole is connected to one end of the exhaust pipe, and the second air outlet hole is directly connected to the outside atmosphere;

[0028] The second sealing gasket is arranged at the bottom end of the sterilizing bottle cap, and the second sealing gasket is adapted to the second spherical structure of the bottle mouth;

[0029] The sterilizing bottle cap is a covering buckle structure, and the second buckle is matched with the second clamping foot.

[0030] The multifunctional closed chest drainage device provided by the embodiment of the present invention has the following advantages:

[0031] (1) When medical staff pour out the drainage fluid in the drainage bottle, it can prevent the drainage fluid from flowing back and contaminating the outer wall of the drainage bottle and the hands of medical staff, reducing the chance of cross-infection in the hospital;

[0032] (2) It solves the problem that the caps of drainage bottles and disinfection bottles are difficult to clean due to dirt and grime, which is conducive to aseptic operation;

[0033] (3) When there is a risk that drainage fluid may flow back into the patient's chest cavity due to misoperation, the plastic ball, pushed by the liquid level in the drainage bottle, presses against the inverted funnel-shaped cavity structure of the drainage tube, thereby closing the channel between the patient's chest cavity and the drainage bottle, effectively avoiding the possibility of drainage fluid backflow and causing serious chest infection in the patient;

[0034] (4) When medical staff change the drainage fluid, they can use their thumb to drive the ratchet to compress the drainage tube in both directions and fasten the buckle to prevent the ratchet from sliding back, effectively blocking the drainage tube channel and quickly achieving the medical staff's requirement to temporarily and strictly clamp the tube;

[0035] (5) An ultraviolet lamp is installed in the disinfection bottle to perform ultraviolet disinfection on the gas discharged from the patient's chest cavity. This can effectively avoid the hospital cross-infection chain caused by respiratory diseases such as the new coronavirus, reduce medical accidents caused by large-scale cross-infection in hospitals and other places where patients gather, and improve the practicality and safety of closed chest drainage devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic diagram of the overall structure of a multifunctional closed chest drainage device provided by an embodiment of the present invention;

[0037] Figure 2 A schematic diagram of the structure of a drainage bottle in a multifunctional closed chest drainage device provided by an embodiment of the present invention;

[0038] Figure 3 A schematic diagram of a bottle mouth spherical structure 1 in a multifunctional closed chest drainage device provided in an embodiment of the present invention;

[0039] Figure 4 A schematic diagram of a drainage bottle cap structure in a multifunctional closed chest drainage device provided by an embodiment of the present invention;

[0040] Figure 5 A schematic diagram of the structure of a drainage tube in a multifunctional closed chest drainage device provided in an embodiment of the present invention;

[0041] Figure 6 A schematic diagram of the structure of a water seal tube in a multifunctional closed chest drainage device provided by an embodiment of the present invention;

[0042] Figure 7 A three-dimensional structural diagram of a bidirectional cross-buckle ratchet clamp in a multifunctional closed chest drainage device provided by an embodiment of the present invention;

[0043] Figure 8 A front view of a bidirectional cross-buckle ratchet clamp in a multifunctional closed chest drainage device provided by an embodiment of the present invention;

[0044] Fig. 9 A cross-sectional view of a bidirectional cross-clamping ratchet clamp in a multifunctional closed chest drainage device provided by an embodiment of the present invention;

[0045] Fig.10 A schematic diagram of the structure of a disinfection bottle in a multifunctional closed chest drainage device provided by an embodiment of the present invention;

[0046] Fig.11 A schematic structural diagram of a disinfection bottle cap in a multifunctional closed chest drainage device provided in an embodiment of the present invention.

[0047] In the attached drawings: 1- drainage bottle; 101- bottle mouth spherical structure one; 102- clamp foot one; 103- scale; 104- medical label one; 2- drainage bottle cap; 201- air inlet one; 202- air outlet one; 203- sealing gasket one; 204- buckle one; 3- drainage tube; 301- inverted funnel-shaped cavity structure; 4- bidirectional cross-clamping ratchet clamp; 401- wedge bracket; 402- ratchet; 403- groove slide rail; 4 04- buckle three; 405- perforation; 5- water seal tube; 501- funnel-shaped cavity structure; 502- plastic ball; 6- exhaust pipe; 7- disinfection bottle; 701- bottle mouth spherical structure two; 702- clamp foot two; 703- medical label two; 704- ultraviolet lamp; 705- bottom battery; 706- side wall switch; 8- disinfection bottle cap; 801- air inlet two; 802- air outlet two; 803- sealing gasket two; 804- buckle two. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0049] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0050] like Figure 1 and Figure 6 As shown, it is a structural diagram of a multifunctional closed chest drainage device provided by an embodiment of the present invention, comprising a drainage bottle 1, a drainage bottle cap 2, a drainage tube 3, a water seal tube 5, an exhaust pipe 6 and a disinfection bottle 7; the drainage bottle cap 2 is arranged at the top of the drainage bottle 1, and the drainage bottle cap 2 adopts a covering buckle structure, the top opening of the drainage bottle cap 2 is connected to the drainage tube 3, and a two-way cross-snap ratchet clamp 4 is installed in the middle of the drainage tube 3; the bottom opening of the drainage bottle cap 2 is connected to the water seal tube 5, and the lower end of the water seal tube 5 is provided with a funnel-shaped cavity structure 501 which is thick at the top and thin at the bottom, and a plastic ball 502 is arranged inside the funnel-shaped cavity structure 501; the drainage bottle cap 2 is also connected to the disinfection bottle 7 through the exhaust pipe 6.

[0051] The present application provides a multifunctional closed chest drainage device. When medical staff pour out the drainage fluid in the drainage bottle 1, it can prevent the drainage fluid from flowing back and outward to contaminate the outer wall of the drainage bottle 1 and the hands of the medical staff, thereby reducing the chance of nosocomial cross infection. It solves the disadvantage that the drainage bottle cap 2 and the disinfection bottle cap 8 are difficult to clean and are filthy, which is conducive to aseptic operation. When the patient is at risk of drainage fluid flowing back into the patient's chest due to misoperation, the plastic ball 502 is pushed by the liquid level in the drainage bottle 1 to press against the inverted funnel-shaped cavity structure 301 of the drainage tube 3, thereby closing the channel between the patient's chest and the drainage bottle 1. It effectively avoids the possibility of severe chest infection caused by backflow of drainage fluid; when medical staff change the drainage fluid, they drive the ratchet 402 with their thumb to compress the drainage tube 3 in both directions, and fasten the buckle 3 404 to prevent the ratchet 402 from sliding back, thereby effectively blocking the drainage tube 3 channel and quickly realizing the medical staff's temporary and strict pipe clamping requirements; an ultraviolet lamp 704 is arranged in the disinfection bottle 7, which can perform ultraviolet disinfection on the gas discharged from the patient's chest cavity, effectively avoiding the hospital cross-infection chain caused by respiratory diseases such as the new crown, reducing medical accidents of large-scale cross-infection in hospitals and other places where patients gather, and improving the practicality and safety of the closed chest drainage device.

[0052] In one example of the present invention, the drainage bottle cap 2 adopts a covering snap-on structure to solve the shortcoming of the spiral mouth closure that dirt and grime are hidden, which is conducive to aseptic operation, and the drainage tube 3, water seal tube 5 and plastic ball 502 constitute an anti-siphon structure, which can effectively prevent the patient from accidentally raising the drainage bottle 1 to a height higher than the insertion plane, causing the liquid in the drainage bottle 1 to enter the chest cavity, and the two-way cross-snap ratchet clamp 4 on the drainage tube 3 can solve the problem of temporary and strict clamping of the drainage tube 3 when replacing the drainage bottle 1, effectively preventing air from entering the chest cavity, and at the same time, the disinfection bottle 7 can disinfect the drainage from the chest cavity in real time, effectively blocking the chain of cross infection in the hospital.

[0053] like Figure 2 , Figure 3 and Figure 4 As shown, as a preferred embodiment of the present invention, the drainage bottle 1 includes a bottle mouth spherical structure 101, a clamping foot 102, a scale 103 and a medical label 104;

[0054] The bottle mouth spherical structure 101 is arranged on the top of the drainage bottle 1;

[0055] The clamping feet 102 are located at both sides of the bottom of the bottle mouth spherical structure 101, and the clamping feet 102 are also adapted to the buckles 204 on both sides of the drainage bottle cap 2, so as to solve the disadvantage that the spiral mouth closed bottle cap is easy to hide dirt and grime, protect the bottle mouth from contamination, and facilitate aseptic operation;

[0056] The scale 103 is arranged on the side of the drainage bottle 1 to facilitate observation of the fluctuation and height of the liquid level, provide a basis for diagnosis of changes in the patient's condition, and improve the use effect of the chest closed drainage device;

[0057] The medical label 104 is affixed to the center of the front of the drainage bottle 1, and the medical label 104 includes a name column, a time column and a time column;

[0058] Among them, the name column package can also include other use columns to indicate the purpose and prevent mixing, effectively reduce medical accidents caused by the loss of information bars, and improve the practicality and standardization of chest closed drainage devices.

[0059] During the specific implementation of this embodiment, the edge of the drainage bottle 1 is a spherical structure with a circular cross-section, and is curled and extended to the bottle mouth spherical structure 101, which is used to prevent the liquid from flowing back and outward during the pouring of the drainage bottle 1 to contaminate the bottle body and medical staff, thereby reducing the probability of nosocomial cross-infection and improving the practicality and safety of the closed chest drainage device.

[0060] like Figure 2 and Figure 4 As shown, as another preferred embodiment of the present invention, the drainage bottle cap 2 includes an air inlet 201, an air outlet 202, a sealing gasket 203 and a buckle 204;

[0061] The air inlet 201 and the air outlet 202 are arranged on the drainage bottle cap 2;

[0062] The sealing gasket 203 is arranged at the bottom end of the drainage bottle cap 2, and the sealing gasket 203 is adapted to the bottle mouth spherical structure 101;

[0063] The buckle 1 204 is located on both sides of the drainage bottle cap 2 , and the buckle 1 204 is matched with the clamping foot 102 .

[0064] During the specific implementation of this embodiment, one air inlet hole 201 and one air outlet hole 202 are each provided, the upper opening of the air inlet hole 201 is connected to the drainage tube 3, the lower opening of the air inlet hole 201 is connected to the water seal tube 5, and the upper opening of the air outlet hole 202 is connected to the disinfection bottle 7 through the exhaust pipe 6.

[0065] like Figure 1 , Figure 5 and Figure 6 As shown, as another preferred embodiment of the present invention, one end of the drainage tube 3 is connected to the patient's pleural cavity, and the lower part of the drainage tube 3 is an inverted funnel-shaped cavity structure 301 that is thin at the top and thick at the bottom, the thick end of the inverted funnel-shaped cavity structure 301 is larger than the diameter of the plastic ball 502, and the thin end of the inverted funnel-shaped cavity structure 301 is smaller than the diameter of the plastic ball 502.

[0066] During the specific implementation of this embodiment, the drainage tube 3, the water seal tube 5, and the air inlet hole 201 on the drainage bottle cap 2 described in this application constitute a channel for the movement of the plastic ball 502. The plastic ball 502 moves freely in the channel under the push of the liquid level in the water seal tube 5 until it hits the bottom of the inverted funnel-shaped cavity structure 301, blocking the drainage liquid in the water seal tube 5 from moving upward.

[0067] like Figure 1 , Figure 7 , Figure 8 and Fig. 9 As shown, as another preferred embodiment of the present invention, the bidirectional cross-buckle ratchet clamp 4 includes two flow limiters, and the flow limiter includes a wedge-shaped bracket 401, a ratchet 402, a groove slide rail 403, a buckle 404 and a perforation 405;

[0068] The wedge-shaped bracket 401 is installed on the drainage tube 3, and the ratchet 402 is installed inside the wedge-shaped bracket 401;

[0069] The groove slide rail 403 and the buckle three 404 are arranged on the upper surface of the wedge-shaped bracket 401, and the through holes 405 are arranged at both ends of the wedge-shaped bracket 401. The drainage tube 3 passes through the through holes 405 to enter and exit the flow restrictor.

[0070] During the specific implementation of this embodiment, when the medical staff changes the drainage fluid, they drive the ratchet 402 with their thumb to compress the drainage tube 3 in both directions, and fasten the buckle 3 404 to prevent the ratchet 402 from sliding back, thereby effectively blocking the channel of the drainage tube 3. The medical staff's requirement to temporarily clamp the pipeline can be quickly met, thereby improving the practicality and safety of the closed chest drainage device.

[0071] like Figure 1 and Fig.10 As shown, as another preferred embodiment of the present invention, the disinfection bottle 7 includes a second spherical structure 701 of the bottle mouth, a second clamping foot 702, a second medical label 703, an ultraviolet lamp 704, a bottom battery 705, a side wall switch 706 and a disinfection bottle cap 8;

[0072] The second clamping foot 702 is arranged on the top of the sterilizing bottle 7, and the second bottle mouth spherical structure 701 is installed on the second clamping foot 702;

[0073] The medical label 2 703 is attached to the surface of the disinfection bottle 7;

[0074] The ultraviolet lamp 704 is installed on the inner surface of the bottom of the disinfection bottle 7, and the ultraviolet lamp 704 is connected to the bottom battery 705 through a wire. The side wall switch 706 is located on the outer side of the bottom of the disinfection bottle 7 and is used to control the working state of the ultraviolet lamp 704.

[0075] During the specific implementation of this embodiment, the body of the disinfection bottle 7 is made of a dark-colored anti-ultraviolet material to prevent ultraviolet rays from escaping, thereby effectively protecting the human body.

[0076] like Figure 1 , Fig.10 and Fig.11 As shown, as another preferred embodiment of the present invention, the sterilizing bottle cap 8 includes a second air inlet 801, a second air outlet 802, a second sealing gasket 803 and a second buckle 804;

[0077] The second air inlet 801 and the second air outlet 802 are arranged on the sterilizing bottle cap 8, the second air inlet 801 is connected to one end of the exhaust pipe 6, and the second air outlet 802 is directly connected to the outside atmosphere;

[0078] The second sealing gasket 803 is arranged at the bottom end of the sterilizing bottle cap 8, and the second sealing gasket 803 is adapted to the second bottle mouth spherical structure 701;

[0079] The disinfection bottle cap 8 is a covering buckle structure, and the second buckle 804 is matched with the second clamping foot 702.

[0080] In summary, when the multifunctional closed chest drainage device provided by the present application works normally, the patient's chest cavity, drainage tube 3, water seal tube 5, exhaust pipe 6, and disinfection bottle 7 form a channel to guide the gas and liquid in the patient's chest cavity into the drainage bottle 1; when the patient accidentally makes a misoperation, such as lifting the drainage bottle 1, under the action of the external atmospheric pressure, the liquid in the drainage bottle 1 goes up along the channel, pushing the plastic ball 502 located in the water seal tube 5 to float up, until the plastic ball 502 is pressed against the inverted funnel-shaped cavity structure 301, thereby cutting off the gas-liquid channel, preventing the liquid in the drainage bottle 1 from flowing back into the patient's chest cavity and causing Severe infection; when medical staff need to regularly clean and pour out the liquid in the drainage bottle 1, in order to prevent the outside atmosphere from directly entering the patient's chest cavity and compressing the alveoli, use the thumb to drive the ratchet 402 to squeeze the drainage tube 3 until the channel is completely cut off, fasten the buckle three 403 of the flow limiter to ensure that the channel is continuously cut off during the operation, until the liquid in the drainage bottle 1 is replaced, release the buckle three 404 and the ratchet 402, and the channel is reopened; when accompanied by respiratory diseases such as the new crown, the drainage bottle 1 works together with the disinfection bottle 7 to prevent the gas discharged from the patient's chest cavity from directly entering the atmosphere and causing cross infection.

[0081] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0082] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A multifunctional closed chest drainage device, characterized in that: It includes a drainage bottle, a drainage bottle cap, a drainage tube, a water seal tube, an exhaust pipe and a disinfection bottle; The drainage bottle cap adopts a covering buckle structure, and the drainage bottle cap includes a buckle 1, and the buckle 1 is located on both sides of the drainage bottle cap, and the buckle 1 is adapted to a clamping foot 1; the drainage bottle cap is arranged at the top of the drainage bottle, and the top opening of the drainage bottle cap is connected to the drainage tube, and a two-way cross-buckle ratchet clamp is installed in the middle of the drainage tube; the bottom opening of the drainage bottle cap is connected to the water seal tube, and the lower end of the water seal tube is provided with a funnel-shaped cavity structure which is thick at the top and thin at the bottom, and a plastic ball is arranged inside the funnel-shaped cavity structure; the drainage bottle cap is also connected to a disinfection bottle through an exhaust pipe; one end of the drainage tube is connected to the patient's pleural cavity, and the lower part of the drainage tube is an inverted funnel-shaped cavity structure which is thin at the top and thick at the bottom, and the thick end of the inverted funnel-shaped cavity structure is larger than the diameter of the plastic ball, and the thin end of the inverted funnel-shaped cavity structure is smaller than the diameter of the plastic ball; The bidirectional cross-clip ratchet clamp includes two flow limiters, which are used in parallel and upside down, and the flow limiter includes a wedge-shaped bracket, a ratchet, a groove slide rail, a buckle three and a perforation; the wedge-shaped bracket is installed on the drainage tube, and the ratchet is installed on the inner side of the wedge-shaped bracket. The ratchet is driven by the thumb to press the drainage tube in both directions, and the buckle three is fastened to prevent the ratchet from sliding back, so as to effectively block the drainage tube channel; the groove slide rail and the buckle three are arranged on the upper surface of the wedge-shaped bracket, and the perforations are arranged at both ends of the wedge-shaped bracket, and the drainage tube passes through the perforations and enters and exits the flow limiter; The disinfection bottle comprises a second bottle mouth spherical structure, a second clamping foot, a second medical label, an ultraviolet lamp, a bottom battery, a side wall switch and a disinfection bottle cap; the second clamping foot is arranged on the top of the disinfection bottle, and the second bottle mouth spherical structure is installed on the second clamping foot; The medical label 2 is pasted on the surface of the disinfection bottle; the ultraviolet lamp is installed on the inner surface of the bottom of the disinfection bottle, the ultraviolet lamp is connected to the bottom battery through a wire, and the side wall switch is located outside the bottom of the disinfection bottle, which is used to control the working state of the ultraviolet lamp; The sterilizing bottle cap comprises two air inlet holes, two air outlet holes, two sealing gaskets and two buckles; the two air inlet holes and the two air outlet holes are arranged on the sterilizing bottle cap, the two air inlet holes are connected to one end of the exhaust pipe, and the two air outlet holes are directly connected to the outside atmosphere; the two sealing gaskets are arranged at the bottom end of the sterilizing bottle cap, and the two sealing gaskets are matched with the two spherical structures of the bottle mouth; the sterilizing bottle cap is a covering buckle structure, and the two buckles are matched with the two clamping feet; The drainage bottle comprises a spherical structure at the mouth of the bottle and a clamping foot. The spherical structure at the mouth of the bottle is arranged at the top of the drainage bottle. The cross-section of the edge of the mouth of the drainage bottle is circular and curls outward to extend to the mouth of the bottle, so as to prevent the liquid from flowing back and polluting the bottle body during the pouring of the drainage bottle. The clamping foot is located on both sides of the bottom of the spherical structure at the mouth of the bottle.

2. A multifunctional closed chest drainage device according to claim 1, characterized in that: The drainage bottle includes a scale and a medical label; The scale is arranged on the side of the drainage bottle to facilitate observation of liquid level fluctuation and height; The medical label 1 is pasted on the center position of the front of the drainage bottle, and the medical label 1 includes a name column, a time column and a time column.

3. A multifunctional closed chest drainage device according to claim 2, characterized in that: The drainage bottle cap comprises an air inlet hole, an air outlet hole and a sealing gasket; The air inlet hole 1 and the air outlet hole 1 are arranged on the drainage bottle cap, and one air inlet hole 1 and one air outlet hole 1 are each provided, the upper end opening of the air inlet hole 1 is connected to the drainage tube, the lower end opening of the air inlet hole is connected to the water seal tube, and the upper end opening of the air outlet hole 1 is connected to the disinfection bottle through the exhaust pipe; The sealing gasket 1 is arranged at the bottom end of the drainage bottle cap, and the sealing gasket 1 is matched with the spherical structure 1 of the bottle mouth.

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