Disposable drainage bag

Abstract

The utility model discloses a disposable drainage bag, belongs to the technical field of medical equipment, and aims to solve the problem that a one-way valve of the disposable drainage bag is easy to block. According to the technical scheme, a multi-way piece is fixedly connected between the end, close to a drainage bag body, of a balloon and the drainage bag body, the multi-way piece is provided with a reversing sliding groove, a main drainage channel and an auxiliary drainage channel which are communicated with one another, and a main outlet one-way valve and an auxiliary outlet one-way valve are arranged at outlets of the main drainage channel and the auxiliary drainage channel respectively; a reversing valve element used for controlling reversing of the main drainage channel and the auxiliary drainage channel is slidably connected into the reversing sliding groove, and an anti-blocking assembly is fixedly connected to the rear end of the main outlet one-way valve in the liquid drainage direction, so that the efficient, safe and flexible drainage process is achieved, the function of automatically switching drainage paths is achieved, the operation requirement is simplified through the design, and the operation efficiency is improved. The cross infection risk is reduced, the drainage efficiency is improved, and the use convenience and safety are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, and more specifically to a disposable drainage bag. Background Art

[0002] Disposable drainage bags are commonly used devices in the medical field. They are often used to treat diseases such as pleural effusion and pneumothorax. The fluid or air in the patient's chest cavity is discharged from the body through a drainage tube to alleviate the patient's symptoms and promote recovery.

[0003] In order to drain out body fluids such as blood clots, pus and blood, a balloon is usually connected in series to the drainage tube to allow the fluid to be introduced from the drainage tube into the drainage bag in one direction. A one-way valve is provided between the balloon and the drainage tube, and between the balloon and the drainage bag to ensure that the fluid can only flow in one direction to prevent backflow and contamination. However, since the drainage fluid contains viscous substances such as blood clots, pus and blood, there is a risk of clogging when using an ordinary one-way valve between the balloon and the drainage bag. The viscous substance is easily accumulated and solidified inside the valve, resulting in the inability of the one-way valve to open or close normally, thereby affecting the drainage effect. This not only reduces the efficiency of the drainage system, but also increases the burden of regular inspection and cleaning or replacement of drainage equipment. Therefore, a new solution is needed to solve the problem of easy clogging of the one-way valve of a disposable drainage bag. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a disposable drainage bag, which reduces the risk of clogging of the one-way valve of the disposable drainage bag through structural settings.

[0005] The above-mentioned technical purpose of the utility model is achieved through the following technical scheme: a disposable drainage bag, comprising a drainage tube and a drainage bag main body fixedly connected to the drainage tube, a balloon being connected in series to the drainage tube, a multi-way piece being fixedly connected between the balloon and the drainage bag main body, the multi-way piece being provided with a reversing slide groove, a main drainage channel and an auxiliary drainage channel which are interconnected, a main outlet check valve and an auxiliary outlet check valve being respectively arranged at the outlets of the main drainage channel and the auxiliary drainage channel, a reversing valve core for controlling the reversing of the main drainage channel and the auxiliary drainage channel being slidably connected in the reversing slide groove, an anti-blocking component being fixedly connected to the rear end of the main outlet check valve in the liquid drainage direction, and the liquid in the anti-blocking component exerts a force on the reversing valve core along the direction of the reversing slide groove during drainage.

[0006] The utility model is further configured as follows: one end of the reversing valve core is fixedly connected to an elastic part, a limiting part is arranged at one end of the reversing valve core close to the elastic part, a through hole is opened at one end of the multi-channel part close to the elastic part, the limiting part passes through the through hole and the end of the limiting part passing through the through hole is larger than the diameter of the through hole, and the main drainage channel is unobstructed before drainage and the elastic part is in a compressed state.

[0007] The present utility model is further configured such that: the anti-blocking assembly includes a lead-out pipe and a branch pipe fixedly connected to each other. The lead-out pipe is fixedly connected to the outlet of the main drainage channel. In the liquid drainage direction, the connection point of the branch pipe and the lead-out pipe is located at the rear end of the main outlet check valve. The branch pipe is fixedly connected to the end of the reversing sliding groove away from the elastic member.

[0008] The present utility model is further configured such that: a limiting groove communicating with the reversing sliding groove is formed inside the end of the multi-way member away from the elastic member, and the diameter of the limiting groove is larger than the diameter of the end of the reversing valve core close to the limiting groove.

[0009] The present utility model is further configured such that: when the force exerted by the liquid in the branch pipe on the reversing valve core maintains the main drainage channel unblocked, the limiting member is disconnected from the reversing valve core.

[0010] The present utility model is further configured such that: when the main outlet check valve is blocked, the reversing valve core slides in a direction away from the elastic member, the inlet of the main drainage channel is communicated with the outlet of the auxiliary drainage channel, and the reversing valve core blocks the communication between the inlet and the outlet of the main drainage channel.

[0011] The present utility model is further configured such that: a supplementary pipe is fixedly connected to the inlet of the auxiliary drainage channel, a secondary flow pipe is fixedly connected to the outlet of the auxiliary drainage channel, the secondary flow pipe is fixedly connected to the lead-out pipe and internally communicated. In the liquid drainage direction, the connection point of the secondary flow pipe and the lead-out pipe is located at the rear end of the connection point of the lead-out pipe and the branch pipe.

[0012] The present utility model is further configured such that: a clogging clearing channel is formed at the end of the multi-way member close to the main outlet check valve, the clogging clearing channel is internally communicated with the lead-out pipe. In the liquid drainage direction, the connection point of the clogging clearing channel and the lead-out pipe is located at the front end of the main outlet check valve.

[0013] The present utility model is further configured such that: when the main outlet check valve is blocked, the inlet of the auxiliary drainage channel is communicated with the clogging clearing channel, and the reversing valve core blocks the communication between the inlet and the outlet of the auxiliary drainage channel.

[0014] The present utility model is further configured such that: when the main outlet check valve is blocked, it is communicated with the clogging clearing channel through the supplementary pipe.

[0015] In summary, the present utility model has the following beneficial effects:

[0016] This disposable drainage bag adopts the design of a main drainage channel, a secondary drainage channel, a reversing valve core and an anti-blocking component to achieve an efficient, safe and flexible drainage process. It has the function of automatically switching the drainage path and can continue drainage through the secondary drainage channel when the main outlet one-way valve is blocked, avoiding interruption. At the same time, the built-in clog-clearing channel and supplementary tube help to remove blockages and ensure the continuous and effective operation of the drainage bag. In addition, this design simplifies the operation requirements and reduces the risk of cross-infection, not only improving the drainage efficiency, but also enhancing the convenience and safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a cross-sectional view of a multi-way component;

[0019] Figure 3 is a cross-sectional view of the multi-way component when the main outlet one-way valve is blocked after removing the limiting member.

[0020] In the figure: 1, drainage tube; 2, drainage bag body; 3, balloon; 4, multi-way component; 41, reversing chute; 411, reversing valve core; 42, limiting groove; 5, main outlet one-way valve; 6, secondary outlet one-way valve; 7, elastic member; 8, limiting member; 9, through hole; 10, outlet tube; 11, branch tube; 12, clog-clearing channel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment:

[0023] Next, the present utility model will be described in detail in conjunction with the accompanying drawings and embodiments.

[0024] As Figure 1 and Figure 2As shown, the disposable drainage bag includes a silicone drainage tube 1 and a drainage bag body 2. The drainage bag body 2 is a low-pressure PE bag. A balloon 3 is connected in series on the drainage tube 1. The balloon 3 can provide greater suction to drain out human body fluids such as blood clots and pus. A multi-way part 4 is connected between one end of the balloon 3 close to the drainage bag body 2 and the drainage bag body 2. The multi-way part 4 is made of PP reinforced polypropylene. The multi-way part 4 is provided with a linear reversing chute 41, an N-shaped main drainage channel and a secondary drainage channel that communicate with each other. One end of the multi-way part 4 far from the elastic part 7 is internally provided with a limiting groove 42 communicating with the reversing chute 41. The diameter of the limiting groove 42 is larger than the diameter of one end of the reversing valve core 411 close to the limiting groove 42. The limiting groove 42 limits the sliding distance of the reversing valve core 411 in the reversing chute 41. One-way valves are provided at one end of the balloon 3 far from the drainage bag body 2, the connection port of the drainage tube 1 and the drainage bag body 2, and the outlets of the main drainage channel and the secondary drainage channel. The one-way valves at the outlets of the main drainage channel and the secondary drainage channel are respectively the main outlet one-way valve 5 and the secondary outlet one-way valve 6. A reversing valve core 411 for controlling the reversal of the main drainage channel and the secondary drainage channel is arranged in the reversing chute 41. The multi-way part 4 and the reversing valve core 411 are both injection molded. A anti-blocking component is connected to the rear end of the main outlet one-way valve 5 in the liquid drainage direction. The anti-blocking component includes an integrally formed leading tube 10 and a branch tube 11. The leading tube 10 is connected to the outlet of the main drainage channel. In the liquid drainage direction, the connection point of the branch tube 11 and the leading tube 10 is located at the rear end of the main outlet one-way valve 5. The other end of the branch tube 11 is connected to one end of the reversing chute 41 far from the elastic part 7. During drainage, the liquid in the branch tube 11 pushes the reversing valve core 411 along the reversing chute 41 to keep the main drainage channel unblocked. When the main outlet one-way valve 5 is blocked, the flow rate of the liquid flowing into the branch tube 11 becomes smaller, and the reversing valve core 411 slides reversely along the reversing chute 41 to switch the drainage path. By setting the main drainage channel and the secondary drainage channel, different drainage paths can be switched according to the situation of the main outlet one-way valve 5, increasing the flexibility and efficiency of drainage. At the same time, the setting of the main outlet one-way valve 5 and the secondary outlet one-way valve 6 ensures that the liquid can only flow in one direction, preventing backflow and pollution, and improving the safety of use.

[0025] As Figure 1 and 3As shown, one end of the reversing valve core 411 is bonded with an elastic member 7. The elastic member 7 is a spring. A pull-ring-shaped limiting member 8 is arranged at one end of the reversing valve core 411 close to the elastic member 7. A circular through-hole 9 is opened at one end of the multi-pass member 4 close to the elastic member 7. The limiting member 8 passes through the through-hole 9 and the end of the limiting member 8 passing through the through-hole 9 is larger than the diameter of the through-hole 9. Before drainage, the main drainage channel is unobstructed and the elastic member 7 is in a compressed state. The limiting member 8 keeps the reversing valve core 411 in a state of maintaining the unobstructed main drainage channel. After the drainage starts, the liquid flowing into the branch pipe 11 pushes the reversing valve core 411 to maintain the unobstructed main drainage channel. After the drainage state is stable, the limiting member 8 is disconnected from the reversing valve core 411. After the limiting member 8 is disconnected, the elastic member 7 exerts a force on the reversing valve core 411 to push the reversing valve core 411 in the direction away from the elastic member 7. The elastic member 7 and the liquid in the branch pipe 11 together keep the reversing valve core 411 in a state of maintaining the unobstructed main drainage channel. The disconnection of the limiting member 8 enables the reversing valve core 411 to be controlled to reverse through the liquid pressure in the branch pipe 11. When the main outlet check valve 5 is blocked during drainage, the main drainage channel is connected to the auxiliary drainage channel through the movement of the reversing valve core 411, so as to bypass the blockage point and continue drainage, effectively preventing the interruption of drainage. Through the combined design of the reversing valve core 411, the elastic member 7 and the limiting member 8, the drainage channel can be automatically switched when the main outlet check valve 5 is blocked, reducing the need for manual intervention and simplifying the operation process.

[0026] As Figures 1 - 3 shown, a supplementary pipe is fixedly connected to the inlet of the auxiliary drainage channel. The end of the supplementary pipe away from the multi-pass member 4 is connected to an injection pump, and the injection pump is filled with a clog-removing liquid to ensure that the auxiliary drainage channel is always unobstructed. The outlet of the auxiliary drainage channel is fixedly connected to an auxiliary flow pipe. The auxiliary flow pipe is integrally formed with the outlet pipe 10 and is internally connected. At the connection of the auxiliary flow pipe and the outlet pipe 10 in the liquid drainage direction, it is located at the rear of the connection of the outlet pipe 10 and the branch pipe 11. A clog-removing channel 12 is opened at one end of the multi-pass member 4 close to the main outlet check valve 5. The clog-removing channel 12 is internally connected to the outlet pipe 10. At the connection of the clog-removing channel 12 and the outlet pipe 10 in the liquid drainage direction, it is located at the front of the main outlet check valve 5. When the main outlet check valve 5 is blocked, the reversing valve core 411 slides in the direction away from the elastic member 7. The inlet of the main drainage channel is connected to the outlet of the auxiliary drainage channel. The reversing valve core 411 blocks the connection between the inlet and the outlet of the main drainage channel. The inlet of the auxiliary drainage channel is connected to the clog-removing channel 12. The reversing valve core 411 blocks the connection between the inlet and the outlet of the auxiliary drainage channel. The supplementary pipe is connected to the clog-removing channel 12. By setting the clog-removing channel 12 and the supplementary pipe, the clog-removing liquid can help loosen and remove the viscous blockage when the main outlet check valve 5 is blocked, and use the pressure and flow of the fluid to remove the blockage at the main outlet check valve 5 and restore the drainage function. After the main outlet check valve 5 is restored to unobstructed, the liquid in the branch pipe 11 pushes the reversing valve to open the main drainage channel again.

[0027] Working principle: As shown in Figures 1 - 3 , before drainage, the limiting member 8 exerts a force on the reversing valve core 411 towards the elastic member 7, causing the elastic member 7 to be in a compressed state. At this time, both the main drainage channel and the secondary drainage channel remain unblocked. After the drainage starts, the liquid enters the drainage bag main body 2 through the main drainage channel, and the cleaning and blocking liquid enters the secondary drainage channel. The liquid in the outlet pipe 10 flows into the branch pipe 11 and exerts a force on the reversing valve core 411 to push the reversing valve core 411 in the direction close to the elastic member 7. After stabilization, the limiting member 8 is pulled out or cut off. When the main outlet one-way valve 5 is blocked, the liquid in the branch pipe 11 decreases, and the force exerted by the elastic member 7 on the reversing valve core 411 is greater than the reverse force exerted by the liquid in the branch pipe 11 on the reversing valve core 411. The reversing valve core 411 slides in the direction away from the elastic member 7, and the reversing valve core 411 blocks the connection between the inlet and the outlet of the main drainage channel, and at the same time blocks the connection between the inlet and the outlet of the secondary drainage channel, so that the liquid flows into the drainage bag main body 2 from the inlet of the main drainage channel and out from the outlet of the secondary drainage channel, and the cleaning and blocking liquid flows into the drainage bag main body 2 from the inlet of the secondary drainage channel and out through the cleaning channel 12. After the main outlet one-way valve 5 is unblocked again, the branch pipe 11 is filled with liquid again, and the reversing valve core 411 is pushed back to its original position, and the liquid re-enters the drainage bag main body 2 through the main drainage channel.

[0028] Operation steps: As shown in Figures 1 - 3 , before using the disposable drainage bag, ensure that your hands are clean and wear gloves, check whether the drainage bag main body 2 is intact, and whether the connection between the drainage bag main body 2 and the drainage tube 1 is firm. After the drainage tube 1 is connected, inject physiological saline or glycerin through the injection pump at the end of the supplementary tube away from the multi-way member 4, and adjust the position of the drainage bag main body 2 to ensure that the liquid can flow into the drainage bag main body 2 smoothly. Press the balloon 3 to drain the human body fluid such as blood clots or pus. When the branch pipe 11 is filled with liquid and the drainage is stable, pull out or cut off the limiting member 8. After the operation is completed, clean and disinfect the used area to reduce the risk of infection.

[0029] Finally, it should be noted that: in the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0030] In the description of the present utility model, it should also be noted that unless otherwise clearly defined and limited, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] The above are only the preferred embodiments of the present utility model, and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. Disposable drainage bag, comprising a drainage tube (1) and a drainage bag body (2) fixedly connected to the drainage tube (1), wherein a balloon (3) is strung on the drainage tube (1), and it is characterized in that: A multi-pass component (4) is fixedly connected between the balloon (3) and the drainage bag body (2). The multi-pass component (4) is provided with a reversing chute (41), a main drainage channel and a secondary drainage channel that are interconnected. A main outlet one-way valve (5) and a secondary outlet one-way valve (6) are respectively arranged at the outlets of the main drainage channel and the secondary drainage channel. A reversing valve core (411) for controlling the reversal of the main drainage channel and the secondary drainage channel is slidably connected in the reversing chute (41). At the rear end of the main outlet one-way valve (5) in the liquid drainage direction, an anti-blocking component is fixedly connected. When draining liquid, the liquid in the anti-blocking component exerts a force on the reversing valve core (411) along the direction of the reversing chute (41).

2. The disposable drainage bag according to claim 1, characterized in that: One end of the reversing valve core (411) is fixedly connected with an elastic member (7). A limiting member (8) is arranged at one end of the reversing valve core (411) close to the elastic member (7). One end of the multi-pass component (4) close to the elastic member (7) is provided with a through hole (9). The limiting member (8) passes through the through hole (9), and the end of the limiting member (8) passing through the through hole (9) is larger than the diameter of the through hole (9). Before draining, the main drainage channel is unblocked and the elastic member (7) is in a compressed state.

3. The disposable drainage bag according to claim 2, characterized in that: The anti-blocking component includes a lead-out pipe (10) and a branch pipe (11) that are fixedly connected to each other. The lead-out pipe (10) is fixedly connected to the outlet of the main drainage channel. In the liquid drainage direction, the connection between the branch pipe (11) and the lead-out pipe (10) is located at the rear end of the main outlet one-way valve (5). The branch pipe (11) is fixedly connected to one end of the reversing chute (41) far from the elastic member (7).

4. The disposable drainage bag according to claim 3, wherein: One end of the multi-pass component (4) far from the elastic member (7) is internally provided with a limiting groove (42) communicating with the reversing chute (41). The diameter of the limiting groove (42) is larger than the diameter of one end of the reversing valve core (411) close to the limiting groove (42).

5. The disposable drainage bag according to claim 4, characterized in that: When the force exerted by the liquid in the branch pipe (11) on the reversing valve core (411) maintains the main drainage channel unblocked, the limiting member (8) is disconnected from the reversing valve core (411).

6. The disposable drainage bag according to claim 5, wherein: When the main outlet one-way valve (5) is blocked, the reversing valve core (411) slides in a direction away from the elastic member (7). The inlet of the main drainage channel is communicated with the outlet of the secondary drainage channel, and the reversing valve core (411) blocks the communication between the inlet and the outlet of the main drainage channel.

7. The disposable drainage bag according to claim 6, wherein: A supplementary pipe is fixedly connected to the inlet of the secondary drainage channel. A secondary flow pipe is fixedly connected to the outlet of the secondary drainage channel. The secondary flow pipe is fixedly connected to the lead-out pipe (10) and is internally communicated. In the liquid drainage direction, the connection between the secondary flow pipe and the lead-out pipe (10) is located at the rear end of the connection between the lead-out pipe (10) and the branch pipe (11).

8. The disposable drainage bag according to claim 7, wherein: One end of the multi-pass component (4) close to the main outlet one-way valve (5) is provided with a clog-removing channel (12). The clog-removing channel (12) is internally communicated with the lead-out pipe (10). In the liquid drainage direction, the connection between the clog-removing channel (12) and the lead-out pipe (10) is located at the front end of the main outlet one-way valve (5).

9. The disposable drainage bag according to claim 8, wherein: When the main outlet check valve (5) is blocked, the inlet of the auxiliary drainage channel communicates with the blockage clearing channel (12), and the reversing valve core (411) blocks the communication between the inlet and the outlet of the auxiliary drainage channel.

10. The disposable drainage bag according to claim 9, wherein: When the main outlet check valve (5) is blocked, it communicates with the blockage clearing channel (12) through the supplementary pipe.

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