Liquid guide device

Abstract

The utility model discloses a liquid guide device which comprises a guide pipe and a conversion device, the guide pipe is provided with a liquid guide opening and at least two liquid outlets, the conversion device comprises an operation part and a conversion part, and after the conversion part is correspondingly operated through the operation part, the liquid outlets are formed in the liquid guide opening. The liquid guide port can be switched to be communicated with one of the at least two liquid outlets, so that the liquid guide device not only can guide liquid, but also can assist a worker in completing operations such as specimen collection of urine of a user, flushing of the bladder of the user and monitoring of intra-abdominal pressure of the user; in the whole process, the liquid guide device does not need to be replaced, and the catheter is not damaged, so that the conditions of liquid leakage, bacterial infection and increase of pain of a user due to frequent replacement of the liquid guide device can be avoided or improved.

Description

Technical Field

[0001] The present disclosure generally relates to the field of medical device technology, and more particularly to a fluid guiding device. Background Art

[0002] A urinary catheter is a tube made of natural rubber, silicone rubber or polyvinyl chloride, used to guide urine from the bladder to the outside of the body. A urinary catheter is a commonly used medical invasive material in clinical practice. It is inserted through the patient's urethra and extends into the bladder. The air or water bag at the front end of the catheter fixes the catheter in the patient's urethra.

[0003] At present, it is common to use a sterilized needle to directly insert a catheter to collect urine samples, wash the bladder, monitor intra-abdominal pressure, etc.

[0004] However, the above methods may cause urinary tract infection, needle puncture of the urinary tract, urine leakage from the catheter, etc., which not only increase the pain of the patients but also increase the burden on the staff. Utility Model Content

[0005] In view of the above-mentioned defects or deficiencies in the related art, it is desired to provide a liquid guiding device that can avoid or improve leakage, bacterial infection, and frequent replacement of the liquid guiding device that increases the pain of the user.

[0006] In a first aspect, a fluid guiding device is provided, comprising:

[0007] A catheter, wherein the catheter is provided with at least two liquid outlets and a liquid guide port;

[0008] A conversion assembly, comprising an operating part and a conversion part, wherein the operating part is arranged on the upper surface of the liquid guiding device, and the conversion part is arranged inside the liquid guiding device;

[0009] When the conversion part is operated by the operating part, one of the liquid outlets of the catheter is communicated with the liquid guide port.

[0010] In an optional embodiment, the conversion unit includes:

[0011] A valve body, the interior of which is a cavity, and the surface of which is provided with at least two openings corresponding to the at least two liquid outlets, wherein the at least two openings are in communication with the cavity;

[0012] A connecting column has one end connected to the surface of the valve body and the other end connected to the operating part.

[0013] In an optional embodiment, when the operating part rotates along the horizontal plane formed by the surface of the catheter, the connecting column and the valve body are driven to rotate in the catheter in the same direction as the operating part, so that the inner cavity of the catheter can be connected to one of the at least two liquid outlets through the opening on the valve body, and the other of the at least two liquid outlets can be closed.

[0014] In an optional embodiment, the liquid outlet includes a first liquid outlet and a second liquid outlet, and the conversion portion includes:

[0015] The conversion valve has a cavity inside and a first opening corresponding to the first liquid outlet and a second opening corresponding to the second liquid outlet on the surface, wherein the first opening and the second opening are both connected to the cavity;

[0016] A first baffle is disposed corresponding to the first opening and a second baffle is disposed corresponding to the second opening, one end of the first baffle is connected to the first end of the operating portion, and one end of the second baffle is connected to the second end of the operating portion.

[0017] In an optional embodiment, when the first end of the operating part is pressed toward the catheter surface and the second end of the operating part moves upward toward the catheter surface, the first baffle moves downward to close the first opening, and the second baffle moves upward to open the second opening, so that the inner cavity of the catheter can be connected to the second liquid outlet through the second opening on the valve body and the first liquid outlet is closed.

[0018] In an optional embodiment, one of the at least two liquid outlets is integrally formed with the catheter.

[0019] In an optional embodiment, the at least two liquid outlets are opened on the outer surface of the conduit corresponding to the conversion device.

[0020] In an optional embodiment, a connector is provided on the liquid outlet on the outer surface of the conduit corresponding to the conversion device, and a sealing cover is provided on the connector.

[0021] In an optional embodiment, the conversion device is a three-way valve.

[0022] In an optional embodiment, the conversion device is a three-way stopcock.

[0023] The present application provides a liquid guiding device, which includes a catheter and a conversion device, wherein the catheter is provided with a liquid guiding port and at least two liquid outlets, and the conversion device includes an operating part and a conversion part. After the operating part performs corresponding operations on the conversion part, the liquid guiding port can be converted to be connected with one of the at least two liquid outlets, so that the liquid guiding device can not only guide liquid, but also assist staff to complete operations such as collecting urine samples from users, flushing the user's bladder, and monitoring the user's intra-abdominal pressure. The entire process does not require replacement of the liquid guiding device and will not damage the catheter, so leakage, bacterial infection, and frequent replacement of the liquid guiding device that increases the user's pain can be avoided or improved.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0026] Figure 1 This is a schematic structural diagram of an existing liquid guiding device according to an embodiment of the present application;

[0027] Figure 2 This is a schematic structural diagram of a liquid guiding device according to an embodiment of the present application;

[0028] Figure 3 A schematic diagram of the structure of a conversion unit provided in an embodiment of the present application;

[0029] Figure 4 A schematic diagram of the structure of another conversion unit provided in an embodiment of the present application.

[0030] Reference numerals:

[0031] 1000. Fluid guiding device;

[0032] 10. catheter; 20. conversion device;

[0033] 101, liquid guide port; 102, fixed water bag; 103, liquid outlet; 104, water bag water injection port;

[0034] 201, operating unit; 202, conversion unit;

[0035] 2021, valve body; 2022, connecting column; 2023, conversion valve; 2024, first baffle; 2025, second baffle. DETAILED DESCRIPTION

[0036] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0037] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0038] like Figure 1 As stated, Figure 1 An existing liquid guiding device is provided. Figure 1 As shown, the existing fluid guide device only has a water bag water injection port on the side wall of the urinary catheter. If the user's urine needs to be sampled, the user's bladder needs to be flushed, the user's intra-abdominal pressure needs to be monitored, etc., it can only be achieved by directly piercing a hole in the side wall of the urinary catheter with a sterilized needle. This method will damage the urinary catheter, resulting in urine leakage, and the user may be injured during the piercing process. In addition, after the urinary catheter is damaged, it is easy to introduce bacteria into the urinary catheter, causing urinary tract infection and other problems in the user. Moreover, once the above problems occur, the fluid guide device needs to be replaced later, which not only increases the burden on the staff, but also increases the pain of the user.

[0039] Based on the above problems existing in the existing liquid guiding device 1000, the present application provides a new liquid guiding device 1000, such as Figure 2 As shown, Figure 2 Schematic diagram of the structure of a fluid guiding device 1000 provided in this application. Figure 2 It can be seen that the fluid guiding device 1000 includes a catheter 10 and a conversion assembly. The above two structures are described separately below.

[0040] The catheter 10 can also be called a urinary catheter, and its main function is to temporarily store urine drawn from the user's urethra. The catheter 10 is a cylindrical pipe. Since the urethra lengths of different users are different, the length of the catheter 10 can also have different specifications. In addition, in order to better match the user's urethra, the diameter of the catheter 10 can be set between 3-5 mm.

[0041] Because the catheter 10 may come into contact with human skin, the material used to make the catheter 10 is generally silicone or polyvinyl chloride, which has good softness and elasticity, and is easy to sterilize and transparent, which can avoid damage to the user's skin and parts of interest, and can also improve the user's comfort. In addition, the materials of silicone and polyvinyl chloride make the liquid guiding device 1000 more durable, which is not only economically efficient, but also avoids the pain of replacing the liquid guiding device 1000 for the user.

[0042] The catheter 10 includes a first end and a second end. The first end of the catheter 10 is the end that directly extends into the user's urethra. The first end includes an opening of the catheter 10 and a fixed water bag 102. The fixed water bag 102 is arranged on the outer surface of the catheter 10 and is a circular structure. The fixed water bag 102 is used in conjunction with a water bag water injection port 104 arranged near the second end of the catheter 10 to fix the catheter 10.

[0043] Continue as Figure 2 As shown, a pipe with the same diameter as the water bag water injection port 104 is provided at the water bag water injection port 104, and one end of the pipe is connected to the water bag water injection port 104. The connection can be an integral connection or can be bonded by glue, which is not limited in the present application. By connecting a common syringe to inject sterile saline into the water bag water injection port 104, the fixed water bag 102 can be filled, thereby blocking the bladder urethra outlet, which can not only fix the catheter 10, but also prevent the liquid in the catheter 10 from leaking.

[0044] The first end of the catheter 10 is an arc structure, and the arc structure makes the contact surface with the user smoother, thereby improving the comfort of use.

[0045] The above-mentioned liquid guide port 101 is provided on the catheter 10 at a certain distance from the arc end surface, and the liquid guide port 101 is used to introduce urine from the user's urethra into the inner cavity of the catheter 10. It should be noted here that since the function of the catheter 10 is to temporarily store the user's urine, the interior of the catheter 10 is a cavity, and the liquid guide port 101 introduces urine into the inner cavity of the catheter 10, and the inner cavity of the catheter 10 temporarily stores the urine and flows out through the second end of the catheter 10.

[0046] The second end of the catheter 10 is the end away from the user relative to the first end when the catheter 10 is in use, and at least two liquid outlets 103 are provided on the outer surface of the catheter 10 near the second end of the catheter 10, one of which can be an outlet integrated with the catheter 10, that is, an outlet integrally formed with the catheter 10. For example, Figure 2 As shown, the catheter 10 includes two liquid outlets 103. For the convenience of description, the end integrally formed with the catheter 10 is referred to as the first liquid outlet, and the other liquid outlet is referred to as the second liquid outlet.

[0047] In another embodiment, a scale is further provided on the outer surface of the catheter 10, and the scale can provide prompts to the staff when the staff is installing the fluid conduction device 1000 for the user, so that the staff does not need to judge whether the fluid conduction device 1000 is installed in place based on other basis. The scale can assist the staff to install the fluid conduction device 1000 to the corresponding position of the user faster and better, and at the same time, it can also avoid the situation where the staff makes multiple attempts when they are not sure whether it is installed in place, which increases the pain of the user.

[0048] Then, since the catheter 10 is a pipe with only one liquid guide port 101, but two liquid outlets 103 are provided, if no other means of control are performed, the liquid in the catheter 10 will flow out from the first liquid outlet and the second liquid outlet. However, the other operations on the catheter 10 that need to be implemented in this application are not regular actions, so there is no need to keep the second liquid outlet open all the time. Here, in order to switch the liquid guide port 101 to communicate with the first liquid outlet or the second liquid outlet, a conversion component is provided in the catheter 10 near the first liquid outlet or the second liquid outlet. The conversion component includes an operating part 201 and a conversion part 202. The conversion part 202 is located in the catheter 10, and the operating part 201 is located on the outer surface of the catheter 10. By performing corresponding operations on the operating part 201, the conversion part 202 can be driven to switch the liquid guide port 101 to communicate with any one of the multiple liquid outlets 103, so that the liquid in the catheter 10 can flow out from the liquid outlet 103 connected to the liquid guide port 101.

[0049] Next, combine Figure 3 A possible structure of a conversion unit 202 provided in this application is described as follows:

[0050] like Figure 3 As shown, Figure 3 is a schematic diagram of the structure of the conversion unit 202, Figure 3 It can be seen that the conversion part 202 includes a valve body 2021, which is spherical in shape and has a cavity inside. The surface of the valve body 2021 is provided with openings, and the number of the openings is set corresponding to the number of the liquid outlets 103. For example, if there are two liquid outlets 103 on the catheter 10, then the surface of the valve body 2021 is provided with two openings.

[0051] A connecting column 2022 is provided on the upper surface of the valve body 2021, and the connecting column 2022 is used to connect the valve body 2021 with the operating part 201, so that when the operating part 201 rotates along the horizontal plane formed by the surface of the catheter 10, the connecting column 2022 and the valve body 2021 are driven to rotate in the catheter 10 in the same direction as the operating part 201, the inner cavity of the catheter 10 can be connected with one of the at least two liquid outlets 103 through the opening on the valve body 2021, and the other one of the at least two liquid outlets 103 can be closed.

[0052] In an optional embodiment, the conversion device 20 is a three-way valve.

[0053] In another optional embodiment, the conversion device 20 is a three-way stopcock.

[0054] In another optional embodiment, Figure 4 As shown, Figure 4 A schematic diagram of another structure of a conversion unit 202 provided by an exemplary embodiment of the present application is shown in FIG. Figure 4 As shown:

[0055] The conversion part 202 includes a conversion valve 2023, which is a spherical structure with a cavity inside. A first opening corresponding to the first liquid outlet and a second opening corresponding to the second liquid outlet are opened on the surface. The first opening and the second opening are both connected to the cavity.

[0056] A first baffle 2024 is disposed corresponding to the first opening, and a second baffle 2025 is disposed corresponding to the second opening. One end of the first baffle 2024 is connected to the first end of the operating portion 201 , and one end of the second baffle 2025 is connected to the second end of the operating portion 201 .

[0057] When the first end of the operating part 201 is pressed toward the surface of the catheter 10 and the second end of the operating part 201 moves upward toward the surface of the catheter 10, the first baffle 2024 moves downward to close the first opening, and the second baffle 2025 moves upward to open the second opening, so that the inner cavity of the catheter 10 can be connected to the second liquid outlet through the second opening on the valve body 2021, and the first liquid outlet is closed.

[0058] The operating part 201 is, for example, an operating handle, the end of which is in an arc shape, which can better fit the human hand and improve the comfort during use. A directional mark can be further provided on the handle, and the directional mark can provide instructions for the staff, so that when the staff turns the handle, they only need to turn it to the liquid outlet 103 pointed by the directional mark to achieve the purpose of connecting the liquid guide port 101 with the liquid outlet 103, avoiding blind rotation, resulting in unsmooth connection or wasting time.

[0059] The above is only an exemplary description of one possible structure of the conversion part 202. The conversion part 202 may also have other possible structures, which are not limited in the present application, as long as the function of connecting one of the liquid outlets 103 of the catheter 10 to the liquid guide port 101 can be achieved when the conversion part 202 is operated by the operating part 201.

[0060] If the liquid conduction device 1000 provided in the present application has two liquid outlets 103: a first liquid outlet and a second liquid outlet, according to the above description, the first liquid outlet can be an opening integrally formed with the catheter 10, and the end of the opening can be connected to a liquid receiving bag, which is used to collect liquid discharged through the liquid conduction port 101 of the catheter 10, the conversion component and the first liquid outlet.

[0061] In another embodiment, a sealing cover is further provided on the first liquid outlet. When the liquid receiving bag is replaced and removed from the first liquid outlet, the first liquid outlet is sealed by the sealing cover. On the one hand, it can prevent the liquid from flowing out. On the other hand, it can prevent the first liquid outlet from being exposed to the air for a long time, which can easily introduce bacteria into the catheter 10 and cause unsafe things to happen.

[0062] The second liquid outlet can be opened on the outer surface of the catheter 10, which is arranged near the first liquid outlet and corresponds to the position of the conversion component, so that when the conversion component switches the direction of the opening, the opening of the conversion component can be connected with the second liquid outlet.

[0063] When the staff connects the liquid guide port 101 with the second liquid outlet through any of the above methods, the staff can perform the following operations through the second liquid outlet:

[0064] Sampling the liquid in the catheter 10 at the second liquid outlet through the sampling device;

[0065] Alternatively, a bladder flushing operation is performed on the user through the second liquid outlet;

[0066] Alternatively, the intra-abdominal pressure is measured at the second fluid outlet by a pressure measuring device.

[0067] After performing any of the above operations, when the staff switches to perform any of the above operations, there is no need to perform other operations on the catheter 10, and the second liquid outlet can be used to perform the operations, which not only reduces the workload, but also reduces the pain of the user during the operation. For example, the bladder of the user can be flushed through the second liquid outlet at the first moment, and the abdominal pressure of the user can be measured through the second liquid outlet at the second moment. When performing different operations at the first and second moments, they can all be achieved through the second liquid outlet, and there is no need to perform other operations on the catheter 10.

[0068] It should be noted here that, in order to facilitate the corresponding operation of the staff, a connector is also provided at the second liquid outlet, and the connector extends a distance from the outer surface of the catheter 10, for example, 2-4 cm. The connector is a cylindrical structure, one end of which is connected to the second liquid outlet, and the two can be integrally formed to avoid leakage; the other end is an open structure, and a sealing cover is provided at the end of the other end. Under normal circumstances, the sealing cover is provided on the other end of the second liquid outlet to play a protective role and prevent bacteria from entering the catheter 10. The material of the adapter can be the same as that of the catheter 10.

[0069] Below, the method for using the liquid guiding device 1000 provided by the present application is exemplarily described:

[0070] When the user is lying flat, the staff will disinfect his hands, pick up the liquid guiding device 1000, align the liquid guiding port 101 of the liquid guiding device 1000 with the corresponding position of the user, then insert the liquid guiding port 101 into the corresponding part of the user, and slowly send the catheter 10 into the corresponding position of the user until it reaches the corresponding scale and stops the insertion operation. After stopping the insertion operation, sterile saline is injected into the water bag water injection port 104 through an ordinary syringe to fix the catheter 10. In this way, the catheter 10 is installed, and then the matching liquid receiving bag is set on the first liquid outlet for collecting the liquid in the catheter 10, and check whether the conversion component is connected with the liquid guiding port 101 and the first liquid outlet. If so, no subsequent operation is required. If not, the operating part 201 of the conversion component is rotated until the liquid guiding port 101 is connected with the first liquid outlet.

[0071] Next, another application scenario of the fluid guiding device 1000 provided in the present application is exemplarily described.

[0072] The staff uses the liquid guiding device 1000 provided by the present application to perform urinary catheterization for the user. After the liquid guiding device 1000 is inserted into the user's urethra based on the above steps, the liquid guiding device 1000 of the present application can be used normally. When the user's urine flows into the catheter 10 through the liquid guiding port 101, since the opening of the conversion component is connected to the first liquid outlet, the user's urine will flow into the urine receiving bag connected to the first liquid outlet through the first liquid outlet. When the urine collected in the urine receiving bag has reached the upper limit, the staff will remove the urine receiving bag and immediately replace the unused urine receiving bag. The user does not need to replace the liquid guiding device 1000 when using it, which can reduce the pain of frequently replacing and installing the liquid guiding device 1000.

[0073] In another embodiment, if the staff needs to collect the user's urine for operation such as disease condition assessment during the process of collecting the user's urine through the first liquid outlet, the staff only needs to rotate the operating part 201 of the conversion component to point the indicator mark on the operating part 201 to the second liquid outlet. After the operating part 201 completes the rotation, the staff can connect the sampling tube to the connector corresponding to the second liquid outlet to sample the urine.

[0074] In another embodiment, after the staff completes urine sampling of the user through the second liquid outlet, they rotate the operating part 201 of the conversion component to redirect the indicator on the operating part 201 to the first liquid outlet, and the catheterization device 1000 continues to catheterize the user.

[0075] In another embodiment, after testing the urine obtained through sampling, the staff finds that the user has a urinary tract infection and needs to perform a bladder flushing operation on the user. In this case, the staff needs to rotate the operating part 201 of the conversion component to obtain an operation result in which the indicator mark on the operating part 201 points to the second liquid outlet. After the operating part 201 completes the rotation, the staff can connect the equipment required for the bladder flushing operation to the connector of the second liquid outlet to perform a flushing operation on the user. After the staff completes the flushing operation on the user, they rotate the operating part 201 of the conversion component to redirect the indicator mark on the operating part 201 to the first liquid outlet, and the catheterization device 1000 continues to catheterize the user.

[0076] In another optional embodiment, the abdominal cavity is a closed space. An increase in the abdominal cavity volume and a decrease in the compliance of the abdominal wall can both lead to an increase in intra-abdominal pressure. Common clinical causes are bleeding, infection, tumors, and fluid overload, so measuring the intra-abdominal pressure is convenient for doctors to assess the condition and provide treatment. Then, if the staff needs to measure the intra-abdominal pressure, they need to rotate the operating part 201 of the conversion component to point the indicator mark on the operating part 201 to the second liquid outlet. After the operating part 201 is rotated, the staff can connect the equipment required to measure the intra-abdominal pressure to the connector of the second liquid outlet to measure the intra-abdominal pressure. After the staff obtains the required data, they rotate the operating part 201 of the conversion component to point the indicator mark on the operating part 201 back to the first liquid outlet, and the catheter device 1000 continues to catheterize the user.

[0077] The above operation process will not destroy the airtightness of the liquid guiding device 1000, nor violate the aseptic operation, and can avoid or improve the situation that is prone to cause urinary tract infection, while also improving the accuracy of measurement.

[0078] The present application provides a liquid guiding device, which includes a catheter and a conversion device, wherein the catheter is provided with a liquid guiding port and at least two liquid outlets, and the conversion device includes an operating part and a conversion part. After the operating part performs corresponding operations on the conversion part, the liquid guiding port can be converted to be connected with one of the at least two liquid outlets, so that the liquid guiding device can not only guide liquid, but also assist staff to complete operations such as collecting urine samples from users, flushing the user's bladder, and monitoring the user's intra-abdominal pressure. The entire process does not require replacement of the liquid guiding device and will not damage the catheter, so leakage, bacterial infection, and frequent replacement of the liquid guiding device that increases the user's pain can be avoided or improved.

[0079] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of disclosure involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the aforementioned disclosed concept. For example, the above features are replaced with the technical features with similar functions disclosed in this application (but not limited to) by each other to form a technical solution.

Claims

1. A fluid conducting device (1000), characterized in that: include: A catheter (10), wherein the catheter (10) is provided with at least two liquid outlets (103) and a liquid guide port (101); A conversion device (20), comprising an operating portion (201) and a conversion portion (202), wherein the operating portion (201) is arranged on the upper surface of the liquid guiding device (1000), and the conversion portion (202) is arranged inside the liquid guiding device (1000); When the conversion part (202) is operated through the operating part (201), one of the liquid outlets (103) of the catheter (10) is communicated with the liquid guide port (101); The liquid outlet (103) comprises a first liquid outlet and a second liquid outlet, and the conversion portion (202) comprises: The conversion valve (2023) has a hollow interior and a first opening corresponding to the first liquid outlet and a second opening corresponding to the second liquid outlet on its surface, wherein both the first opening and the second opening are in communication with the hollow cavity; A first baffle (2024) is arranged corresponding to the first opening, and a second baffle (2025) is arranged corresponding to the second opening, one end of the first baffle (2024) is connected to the first end of the operating portion (201), and one end of the second baffle (2025) is connected to the second end of the operating portion (201).

2. The liquid guiding device (1000) according to claim 1, characterized in that: The conversion unit (202) comprises: The valve body (2021) has a hollow interior and is provided with at least two openings on its surface corresponding to the at least two liquid outlets (103), the at least two openings being in communication with the hollow cavity; A connecting column (2022) has one end connected to the surface of the valve body (2021) and the other end connected to the operating portion (201).

3. The liquid guiding device (1000) according to claim 2, characterized in that: When the operating portion (201) rotates along a horizontal plane formed by the surface of the catheter (10), the connecting column (2022) and the valve body (2021) are driven to rotate in the catheter (10) in the same direction as the operating portion (201), so that the inner cavity of the catheter (10) is connected to one of the at least two liquid outlets (103) through the opening on the valve body (2021), and the other liquid outlets (103) of the at least two liquid outlets (103) are closed.

4. The liquid guiding device (1000) according to claim 2, characterized in that: When the first end of the operating part (201) is pressed toward the surface of the catheter (10) and the second end of the operating part (201) moves upward toward the surface of the catheter (10), the first baffle (2024) moves downward to close the first opening, and the second baffle (2025) moves upward to open the second opening, so that the inner cavity of the catheter (10) is connected to the second liquid outlet through the second opening on the valve body (2021), and the first liquid outlet is closed.

5. The liquid guiding device (1000) according to claim 1, characterized in that: One of the at least two liquid outlets (103) is integrally formed with the conduit (10).

6. The liquid guiding device (1000) according to claim 1, characterized in that: The at least two liquid outlets (103) are provided on the outer surface of the conduit (10) corresponding to the conversion device (20).

7. The liquid guiding device (1000) according to claim 6, characterized in that: The liquid outlet (103) on the outer surface of the conduit (10) corresponding to the conversion device (20) is provided with a connector, and a sealing cover is provided on the connector.

8. The liquid guiding device (1000) according to claim 1, characterized in that: The conversion device (20) is a three-way valve.

9. The liquid guiding device (1000) according to claim 1, characterized in that: The conversion device (20) is a three-way stopcock.

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