Constant-pressure urination system capable of automatically emptying liquid stored in pipeline

Abstract

The utility model discloses a constant-pressure urination system capable of automatically emptying liquid stored in a pipeline. The constant-pressure urination system comprises a liquid drainage pipeline, a constant-pressure liquid drainage device and an automatic emptying device capable of automatically emptying the liquid stored in the whole liquid drainage pipeline or part of the liquid drainage pipeline, when the liquid discharging pipeline is in a residual liquid discharging state, the automatic emptying device is in a working state, the space occupied by liquid in the liquid discharging pipeline can be filled with air through the automatic emptying device, and therefore the liquid remaining in the liquid discharging pipeline or / and the constant-pressure liquid discharging device can be discharged by means of the gravity of the liquid remaining in the liquid discharging pipeline or / and the constant-pressure liquid discharging device. The constant-pressure liquid drainage device has the advantages that liquid stored in the whole liquid drainage pipeline or part of the liquid drainage pipeline is automatically emptied after liquid drainage, it can be guaranteed that the pressure of the output end of the constant-pressure liquid drainage device is constant, and the stability and accuracy of constant-pressure liquid drainage of the constant-pressure liquid drainage device are guaranteed; the device can completely simulate the physiological urination function, is high in drainage speed, can take away sediments in the bladder, and achieves the effect of flushing the bladder.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely relates to a kind of fixed pressure urination systems with automatic emptying pipe line storage liquid. BACKGROUND

[0002] The existing urination (drainage) system includes a fixed pressure drainage device and a drainage container. The fixed pressure drainage device has an input port and an output port. An input catheter is connected to the input port. The free end of the input catheter is used to connect with a urinary catheter. An output catheter is connected to the output port. The other end of the output catheter is connected to the drainage container. The technical solution is disclosed in the publication number CN111298283 A.

[0003] The defects of the existing urination system are as follows:

[0004] ① Slow drainage. Since the existing fixed pressure drainage device is designed to be as close as possible to the drainage container for accurate pressure setting, the drainage speed is mainly related to the bladder pressure during drainage. Therefore, since the difference between the set pressure and the opening pressure is small, the discharge pressure difference is small when the drainage threshold is reached, and the drainage speed is slow. Moreover, as the urine decreases, the pressure decreases, and the drainage speed becomes slower and slower.

[0005] ② Inaccurate control pressure for drainage opening. After drainage, the input catheter / output catheter and other drainage pipelines may have internal liquid storage. In addition, the fixed pressure drainage device is affected by the drainage opening device, the space position of the drainage pipeline, and the position of the drainage container. The suction pressure of the pipeline storage liquid acts on the fixed pressure device, which seriously affects the accuracy of the self-opening pressure.

[0006] ③ Residual urine in the bladder, which cannot be completely drained. Since there is no other assistance, when the bladder pressure decreases to a certain value, the drainage stops, resulting in incomplete drainage. After the drainage is completed, there is still residual urine, and the urine residues are aggregated and precipitated.

[0007] ④ Failure of the pressure self-opening system. The reason is that when the opening pressure reaches the drainage threshold, the drainage opening device reaches a slightly open state (i.e., a small amount or a trace amount of drainage state). If the bladder urine volume and the drainage urine volume are equal at this time, a continuous "tick" urination will occur, which may last for several hours or even a whole day, causing the pressure self-opening system to fail. INVENTION CONTENTS

[0008] The utility model aims to overcome the shortcomings of the prior art and provide a fixed pressure urination system with automatic emptying of pipeline storage liquid.

[0009] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0010] A constant-pressure urination system with automatic emptying of fluid from its tubing includes a drainage pipeline and a constant-pressure drainage device installed on the drainage pipeline. The drainage pipeline includes a first pipeline located on the input side of the constant-pressure drainage device and a second pipeline located on the output side of the constant-pressure drainage device. The constant-pressure urination system has an automatic emptying device that automatically empties the fluid stored in the entire drainage pipeline or a portion thereof. The drainage pipeline includes a fluid-storage state, a normal drainage state, and a residual fluid emptying state.

[0011] When the drain pipeline is in a liquid storage state, the constant pressure drain device is in a closed state;

[0012] When the drain pipe is in normal draining state, the constant pressure drain device is in the open state, and the liquid flows freely from the drain pipe and the constant pressure drain device;

[0013] When the drain pipe is in the residual liquid emptying state, the automatic emptying device is in working state. The automatic emptying device can fill the space occupied by the liquid in the drain pipe with air, and the residual liquid remaining in the drain pipe or / and the constant pressure draining device is discharged by its own gravity.

[0014] Preferably, the automatic emptying device is a micropore connected to the inside and outside of the drain pipe, or a connector with a micropore connected to the drain pipe, or a large-diameter drain pipe that does not leave any liquid residue after draining, or an exhaust pipe provided on the drain pipe; the automatic emptying device does not affect the fullness of the drain pipe, or the continuity and / or smoothness of draining during normal draining.

[0015] Preferably, the automatic emptying device is a micropore disposed on the outer shell of the drain chamber of the constant pressure draining device and connecting its inner cavity with the outside. The micropore allows external air to enter when there is an internal and external pressure difference, and the amount of air entering does not affect the continuity and / or smoothness of draining under normal draining conditions.

[0016] Preferably, the outer shell of the drain chamber of the constant pressure draining device is provided with an air filter membrane that is in close contact with the periphery of the micropores, so as to ensure that all the airflow entering the micropores passes through the micropore cap of the air filter membrane with an equal or partial area.

[0017] Preferably, the micropores are disposed on the outer shell of the constant pressure draining device near its input side and connect its draining chamber to the external environment.

[0018] Preferably, the pore size of the micropores is no greater than 2.5 mm. The pore size of the micropores is preferably between 0.5 and 1.5 mm. The pore size of the air filter membrane is no greater than 5 μm.

[0019] Alternatively, the automatic emptying device may be a micro-outlet located at the output end of the constant pressure draining device and extend into the second pipeline.

[0020] This utility model also discloses a constant pressure urination system with automatic emptying of liquid in the draining pipeline, including a draining pipeline, a constant pressure draining device and a drainage container installed on the draining pipeline, wherein the constant pressure draining device and / or the draining pipeline are provided with an automatic emptying device that automatically empties the liquid in the entire draining pipeline or a part of the pipeline.

[0021] The constant pressure drainage device includes a housing, and the housing is provided with an input chamber and a drainage chamber. The input chamber and the drainage chamber can be sealed and separated by a partition plate.

[0022] The automatic emptying device is a micropore installed on the outer shell of the draining chamber of the constant pressure draining device and connecting its inner chamber with the outside. The micropore allows external air to enter when there is an internal and external pressure difference. The amount of air entering does not affect the fullness of the draining pipeline, or the continuity and / or smoothness of the draining under normal draining conditions.

[0023] The drainage pipeline includes three states: liquid storage state, normal drainage state, and residual liquid emptying state.

[0024] When the drain pipeline is in a liquid storage state, the constant pressure drain device is in a closed state;

[0025] When the drain pipe is in normal draining state, the constant pressure drain device is in the open state, and the liquid flows freely from the drain pipe and the constant pressure drain device;

[0026] When the drain pipe is in the residual liquid emptying state, the residual liquid remaining in the drain pipe and / or the constant pressure drain device generates negative pressure due to its own gravity, causing the microporous air intake to fill the space occupied by the liquid in the drain pipe, thereby causing the residual liquid to be discharged.

[0027] The beneficial effects of this utility model are mainly reflected in:

[0028] 1. After drainage, the liquid in the entire drainage pipeline or part of the pipeline is automatically cleared, which can ensure that the output pressure of the constant pressure drainage device remains constant, thus ensuring the stability and accuracy of the constant pressure drainage device.

[0029] 2. During constant pressure drainage, it has a drainage suction assistance and acceleration function, which can help accelerate drainage even when the pressure difference is small, without dripping.

[0030] 3. It fully simulates physiological urination function, with a fast drainage speed, which can remove sediment in the bladder and flush it out. Attached Figure Description

[0031] The technical solution of this utility model will be further described below with reference to the accompanying drawings:

[0032] Figure 1 : A schematic diagram of the first embodiment of the constant pressure urination system of this utility model;

[0033] Figure 2 : A schematic diagram of the structure of the constant pressure drainage device in the first embodiment of the constant pressure urination system of this utility model;

[0034] Figure 3 : A schematic diagram of the operation of the first embodiment of the constant pressure urination system of this utility model;

[0035] Figure 4 : A schematic diagram of the second embodiment of the constant pressure urination system of this utility model;

[0036] Figure 5 : A schematic diagram of the third embodiment of the constant pressure urination system of this utility model;

[0037] Figure 6 : A schematic diagram of the fourth embodiment of the constant pressure urination system of this utility model;

[0038] Figure 7 : Schematic diagram of the fifth embodiment of the constant pressure urination system of this utility model. Detailed Implementation

[0039] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0040] In the description of the solution, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience and simplification of description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Also, in the description of the solution, with the operator as a reference, the direction closer to the operator is the proximal end, and the direction farther from the operator is the distal end.

[0041] like Figures 1 to 3As shown, this utility model discloses a constant-pressure urination system with automatic emptying of the fluid in the draining tubing, which includes a draining tubing, a constant-pressure draining device 1, and a drainage container 4 disposed on the draining tubing. The draining tubing includes a first tubing 2 located on the input side of the constant-pressure draining device and a second tubing 3 located on the output side of the constant-pressure draining device. Generally, the first tubing 2 is connected to a catheter that extends into the bladder, and the drainage container 4 is a drainage bag for storing urine.

[0042] The constant pressure drainage device can be a conventional constant pressure drainage device, or it can be a... Figure 2 The structure is disclosed in the diagram. The constant pressure drainage device includes a housing 100, within which are an input chamber 101 and a drainage chamber 102. The input chamber 101 and the drainage chamber 102 can be sealed off by a partition plate 104, or connected by a connection port 105. The connection port 105 is formed by the movement of the partition plate 104. The housing 100 includes an inlet and an outlet, which are respectively connected to a first pipeline 2 and a second pipeline 3.

[0043] In this first embodiment, the constant pressure drainage device is equipped with an automatic emptying device that automatically empties the liquid stored in the entire drainage pipeline or a portion thereof. The automatic emptying device is a micropore 5 disposed on the outer shell of the drainage chamber 102 of the constant pressure drainage device, connecting its inner cavity to the outside. The micropore 5 allows external air to enter when there is a pressure difference between the inside and outside, and the amount of air entering does not affect the fullness, continuity, or / and smoothness of the drainage pipeline. Furthermore, the micropore 5 is disposed on the outer shell of the constant pressure drainage device near its input side, connecting its drainage chamber to the external environment. The pore diameter of the micropore is no greater than 2.5 mm, preferably between 0.5 and 1.5 mm.

[0044] An air filter membrane 7 is provided on the outer shell of the drain chamber of the constant pressure draining device, which is in close contact with the periphery of the micropores, and a micropore cap 6 is provided to ensure that all airflow entering the micropores passes through the air filter membrane of equal or partial area. The air filter membrane 7 is breathable but not water-permeable, and the pore size of the air filter membrane 7 is no larger than 5 μm; the air intake speed can also be controlled by controlling the micropore cap 6.

[0045] The drainage pipeline includes three states: liquid storage state, normal drainage state, and residual liquid emptying state.

[0046] When the drain pipeline is in a liquid storage state, the constant pressure drain device 1 is in a closed state;

[0047] When the pressure inside the bladder reaches the threshold set by the constant pressure drainage device 1, the constant pressure drainage device 1 is in the open state. When the drainage pipeline is in the normal drainage state, the liquid flows freely from the drainage pipeline and the constant pressure drainage device 1.

[0048] When the drainage pipeline is in the residual liquid draining state, refer to the following for details. Figure 3 The micropore 5 allows air to enter, filling the space occupied by the liquid 20 in the drain pipe with air, and the residual liquid remaining in the drain pipe and / or the constant pressure drain device is discharged by its own gravity.

[0049] like Figure 4 In the second embodiment shown, the drain pipe is equipped with an automatic emptying device that automatically empties the liquid stored in the entire drain pipe or a portion thereof. The automatic emptying device is a micro-hole 5 disposed on the drain pipe, connecting its interior and exterior. The automatic emptying device does not affect the fullness, continuity, or / and smoothness of the drain pipe during normal draining. In the figure, the micro-hole 5 is disposed on the second pipe 3, but it can also be disposed on the first pipe 2. Alternatively, the automatic emptying device is a connector with micro-holes 5 connecting its interior and exterior to the drain pipe; that is, it is attached to the drain pipe as an additional part, and the micro-holes are one of the structures of this connector.

[0050] When the drain pipe is in the residual liquid emptying state, the microhole 5 located on the drain pipe opens to allow air to enter, so that the space occupied by the liquid 20 in the drain pipe is filled with air, and the residual liquid remaining in the drain pipe or / and the constant pressure draining device is discharged by its own gravity.

[0051] like Figure 5 In the third embodiment shown, the automatic emptying device is an exhaust pipe 8 installed on the drain pipe, with the other end of the exhaust pipe 8 extending into the drainage container 4. The automatic emptying device does not affect the continuity and / or smoothness of drainage during normal drainage. When the constant pressure draining device 1 is open and the drain pipe is in normal drainage mode, the liquid flow creates negative pressure, drawing in a small amount of gas from the lower end of the exhaust pipe 8, thus carrying some air from the drainage container 4 into the drain pipe to form a circulation. When the drain pipe is in residual liquid emptying mode, the residual liquid in the drain pipe acts under negative gravity, causing gas to continue entering, filling the space occupied by the liquid 20 in the drain pipe with air, and discharging the residual liquid remaining in the drain pipe and / or the constant pressure draining device.

[0052] like Figure 6 In the fourth embodiment shown, the second pipe 3 is a thicker pipe, meaning its diameter is larger than that of the first pipe 2. When the drain pipe is in a residual liquid emptying state, the gravity of the liquid 20 in the drain pipe is greater than the adsorption force of the pipe wall, achieving complete liquid emptying. This is because if the inner diameter of the pipe is appropriately large, the drain pipe itself can avoid accumulating liquid.

[0053] likeFigure 7 In the fifth embodiment shown, the automatic emptying device is a micro-outlet 9 located at the output end of the constant pressure drainage device 1, extending into the second pipeline 3. The flow rate of the micro-outlet 9 is insufficient to fill the entire drainage pipeline, so the pipeline may not contain liquid.

[0054] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0055] The detailed descriptions listed above are merely specific descriptions of feasible implementations of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementations or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. A constant-pressure urination system with automatic emptying of the reservoir fluid, comprising a drain pipe and a constant-pressure draining device (1) disposed on the drain pipe, the drain pipe comprising a first pipe (2) located on the input side of the constant-pressure draining device and a second pipe (3) located on the output side of the constant-pressure draining device, characterized in that: The constant pressure urination system has an automatic emptying device that automatically empties the liquid stored in the entire or part of the drainage pipeline; the drainage pipeline includes a liquid storage state, a normal drainage state, and a residual liquid emptying state; When the drain pipeline is in a liquid storage state, the constant pressure drain device is in a closed state; When the drain pipe is in normal draining state, the constant pressure drain device is in the open state, and the liquid flows freely from the drain pipe and the constant pressure drain device; When the drain pipe is in the residual liquid emptying state, the automatic emptying device is in working state. The automatic emptying device can fill the space occupied by the liquid (20) in the drain pipe with air, and the residual liquid remaining in the drain pipe or / and the constant pressure draining device is discharged by its own gravity.

2. A constant-pressure urination system with automatic emptying of the reservoir fluid according to claim 1, characterized in that: The automatic emptying device is a micro-hole (5) connected to the inside and outside of the drain pipe, or a connector with a micro-hole (5) connected to the drain pipe, or a large-diameter drain pipe that does not leave any liquid residue after draining, or an exhaust pipe (8) provided on the drain pipe; the automatic emptying device does not affect the fullness of the drain pipe, or the continuity and / or smoothness of draining under normal draining conditions.

3. A constant-pressure urination system with automatic emptying of the reservoir fluid according to claim 1, characterized in that: The automatic emptying device is a micropore (5) installed on the outer shell of the draining chamber of the constant pressure draining device and connecting its inner cavity with the outside. The micropore (5) allows external air to enter when there is an internal and external pressure difference. The amount of air entering does not affect the continuity and / or smoothness of draining under normal draining conditions.

4. A constant-pressure urination system with automatic emptying of the reservoir fluid according to claim 3, characterized in that: An air filter membrane (7) is provided on the outer shell of the drain chamber of the constant pressure draining device, which is in close contact with the periphery of the micropores to ensure that all the airflow entering the micropores passes through the micropore cap (6) of the air filter membrane with an equal or partial area.

5. A constant-pressure urination system with automatic emptying of the reservoir fluid according to claim 3, characterized in that: The micropore (5) is located on the outer shell of the constant pressure draining device near its input side and connects its draining chamber with the external environment.

6. A constant-pressure urination system with automatic emptying of the reservoir fluid according to any one of claims 2-5, characterized in that: The pore size of the micropore is no greater than 2.5 mm.

7. A constant-pressure urination system with automatic emptying of the reservoir fluid according to claim 6, characterized in that: The pore size of the micropores is preferably between 0.5 and 1.5 mm.

8. A constant-pressure urination system with automatic emptying of the reservoir fluid according to claim 4, characterized in that: The air filter membrane (7) has a pore size of no more than 5 μm.

9. A constant-pressure urination system with automatic emptying of the reservoir fluid according to claim 1, characterized in that: The automatic emptying device is a micro-outlet (9) located at the output end of the constant pressure draining device (1) and extends into the second pipeline (3).

10. A constant-pressure urination system with automatic emptying of the fluid in the draining pipe, comprising a draining pipe, a constant-pressure draining device (1) and a drainage container (4) disposed on the draining pipe, characterized in that: The constant pressure drainage device and / or drainage pipeline is equipped with an automatic emptying device that automatically empties the liquid in the entire drainage pipeline or a part of the pipeline. The constant pressure drainage device includes a housing (100), and the housing (100) is provided with an input chamber (101) and a drainage chamber (102). The input chamber (101) and the drainage chamber (102) can be closed and separated by a partition plate (104). The automatic emptying device is a micropore (5) installed on the outer shell of the drain chamber (102) of the constant pressure draining device and connecting its inner cavity with the outside. The micropore (5) allows external air to enter when there is an internal and external pressure difference. The amount of air entering does not affect the fullness of the draining pipeline, or the continuity and / or smoothness of the draining under normal draining conditions. The drainage pipeline includes a liquid storage state, a normal drainage state, and a residual liquid emptying state. When the drain pipeline is in a liquid storage state, the constant pressure drain device (1) is in a closed state; When the drain pipe is in normal draining state, the constant pressure drain device (1) is in the open state, and the liquid flows freely from the drain pipe and the constant pressure drain device (1); When the drain pipe is in the residual liquid emptying state, the residual liquid remaining in the drain pipe or / and constant pressure drain device generates negative pressure by its own gravity, causing the micropore (5) to be filled with air to fill the space occupied by the liquid (20) in the drain pipe, thereby causing the residual liquid to be discharged.

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