Three-cavity catheter
By designing an internal threaded sleeve and a fixed ring structure in the three-lumen catheter, the flushing tube is ensured to be stably closed when not in use, solving the problem of loose clips in traditional three-lumen catheters and providing higher stability and convenience in use.
Patent Information
- Application Number
- CN202521897622.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-04
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2035-09-04
AI Technical Summary
The flushing tube of a traditional triple-lumen urinary catheter needs to be clamped and closed with a plastic clip when not in use, resulting in poor stability and the clip may become loose.
A three-lumen urinary catheter is designed. The flushing cavity is fixedly connected inside the main pipeline, and a hard tube is bonded to one end of the flushing tube. An internal threaded sleeve is fixedly connected inside the hard tube. An external thread is provided on the surface of the liquid retaining column, which is fixedly connected to a fixing ring and a sealing ring. The fixed rod inside the rotating collar is used to drive the liquid retaining column to rotate, so that the sealing ring fits the internal threaded sleeve to provide a sealing effect, ensuring that the flushing tube is closed stably.
The flushing tube is stably closed when not in use to avoid loosening, making it convenient and reliable to use.
Smart Images

Figure CN223439009U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of urinary catheters, in particular to a three-lumen urinary catheter. Background Art
[0002] A urinary catheter is a tube that is inserted through the urethra into the bladder to drain urine. It is a tube made of natural rubber, silicone rubber or polyvinyl chloride and can be inserted through the urethra into the bladder to drain urine.
[0003] The three-lumen urinary catheters currently on the market have the following problems in actual use: in actual use, the flushing tube in the traditional three-lumen urinary catheter is an independent cavity. When the flushing tube is not in use, it needs to be clamped and closed with a plastic clip in time. However, the plastic clip is a separate external device that needs to be found when in use. In addition, the clip is fixed and closed by a clamping method, and one end has an opening, which may cause the clip to be loose, resulting in poor stability during use. Utility Model Content
[0004] The purpose of the utility model is to provide a three-lumen urinary catheter to solve the technical problems raised in the background technology.
[0005] To achieve the above-mentioned purpose, the specific technical solution of the present invention is as follows: a three-lumen urinary catheter, comprising a main pipe, a flushing cavity fixedly provided inside the main pipe, a liquid inlet hole provided on the surface of the main pipe, the liquid inlet hole located on the surface of the flushing cavity, a flushing pipe fixedly connected to the surface of the main pipe, the liquid inlet hole located inside the flushing pipe, a flushing hole provided on the surface of the main pipe, the flushing hole located on the surface of the flushing cavity, a hard pipe bonded to one end of the flushing pipe, an internal threaded sleeve fixedly connected to the internal of the hard pipe, a liquid retaining sleeve internally sleeved The surface of the liquid-blocking column is provided with an external thread, the surface of the liquid-blocking column is fixedly connected to a fixing ring, the surface of the fixing ring is bonded with a sealing ring, the surface of the sealing ring is fitted with one end of the internal threaded sleeve, the surface of the hard tube is fixedly connected to a fixing block, an external threaded rod is sleeved inside the fixing block, a baffle is sleeved on the surface of the external threaded rod, a fixing frame is sleeved on the surface of the external threaded rod, the side of the fixing frame is fitted with the baffle, one end of the fixing frame is fixedly connected to a collar, one end of the liquid-blocking column is fixedly connected to a fixing rod, and the fixing rod is located inside the collar.
[0006] Preferably, the other end of the fixing rod is fixedly connected to a rotating plate, and the collar is located between the rotating plate and the liquid-blocking column.
[0007] Preferably, one end of the main pipeline is fixedly connected to a liquid outlet pipe, and the other end of the main pipeline is provided with a liquid outlet hole.
[0008] Preferably, the main pipeline is internally fixedly connected with a gas conveying cavity, the surface of the main pipeline is fixedly connected with an air bag, the surface of the main pipeline is provided with a gas conveying hole, the gas conveying hole is located on the surface of the gas conveying cavity, the surface of the main pipeline is fixedly connected with a gas conveying pipe, the gas conveying hole is located in the gas conveying pipe, the surface of the main pipeline is provided with a gas inlet hole, the gas inlet hole is located on the surface of the gas conveying cavity, the gas inlet hole is located in the air bag, and the other end of the gas conveying pipe is provided with a gas valve.
[0009] Preferably, the other end of the external thread rod is fixedly connected with an internal hexagonal sheet, and the fixing frame is in a symmetrical distribution form.
[0010] Preferably, the surface of the fixing ring is provided with a clamping groove, the clamping groove is internally clamped with a clamping ring, and the sealing ring is fixed on the surface of the clamping ring.
[0011] The three-cavity urinary catheter has the following advantages: the three-cavity urinary catheter is internally fixedly connected with a flushing cavity, a liquid inlet hole is arranged on the surface of the main pipeline, the surface of the main pipeline is fixedly connected with a flushing pipe, the liquid inlet hole is located in the flushing pipe, a flushing hole is arranged on the surface of the main pipeline, the flushing hole is located on the surface of the flushing cavity, a hard pipe is bonded to one end of the flushing pipe, an internal thread sleeve is fixedly connected in the hard pipe, a liquid blocking column is sleeved in the internal thread sleeve, an external thread is arranged on the surface of the liquid blocking column, a fixing ring is fixedly connected to the surface of the liquid blocking column, a sealing ring is bonded to the surface of the fixing ring, the surface of the sealing ring is attached to one end of the internal thread sleeve, a fixing block is fixedly connected to the surface of the hard pipe, an external thread rod is sleeved in the fixing block, a blocking piece is sleeved on the surface of the external thread rod, a fixing frame is sleeved on the surface of the external thread rod, the side surface of the fixing frame is attached to the blocking piece, a sleeve ring is fixedly connected to one end of the fixing frame, a fixing rod is fixedly connected to one end of the liquid blocking column, and the fixing rod is located in the sleeve ring; when the urinary catheter is not used with the flushing pipe, the fixing rod in the sleeve ring can be rotated, the liquid blocking column can be driven to rotate through the fixing rod, the fixing rod can be moved to install the liquid blocking column in the internal thread sleeve through rotation, the sealing ring on the fixing ring is attached to one end of the internal thread sleeve, a sealing effect is provided between the internal thread sleeve and the liquid blocking column, a closing effect is provided for the flushing pipe, the use is very convenient, and the stability of the flushing pipe after being closed is guaranteed, so that the flushing pipe cannot be easily opened. BRIEF DESCRIPTION OF DRAWINGS
[0012] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor.
[0013] Figure 1The whole structure schematic view of the utility model;
[0014] Figure 2 The air bag structure schematic view of the utility model;
[0015] Figure 3 The flushing pipe structure schematic view of the utility model;
[0016] Figure 4 The utility model discloses a Figure 1 The A part of the utility model is enlarged.
[0017] Figure 5 The utility model discloses a Figure 3 The B part of the utility model is enlarged.
[0018] Figure 6 The utility model discloses a Figure 3 The C part of the utility model is enlarged.
[0019] Marking in the drawing: 1, main pipeline;2, liquid outlet pipe;3, liquid outlet hole;4, air bag;5, gas conveying pipe;6, gas conveying cavity;7, gas valve;8, gas conveying hole;9, gas inlet hole;10, flushing cavity;11, liquid inlet hole;12, flushing hole;13, flushing pipe;14, hard pipe;15, fixed block;16, outer thread rod;17, baffle;18, fixed frame;19, sleeve ring;20, fixed rod;21, rotating plate;22, liquid blocking column;23, fixed ring;24, clamping groove;25, clamping ring;26, sealing ring;27, inner thread sleeve;28, inner hexagonal sheet. Specific implementation
[0020] In the following, only certain exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the utility model embodiments. Therefore, the drawings and the description are considered to be essentially exemplary rather than limiting.
[0021] In the description of the utility model embodiments, it is understood that the orientation or position relationship indicated by the terms "length", "vertical", "horizontal", "top", "bottom" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model embodiments and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model embodiments.
[0022] In addition, the terms "first", "second", etc. are used only for the purpose of description and should not be understood as indicating or implying relative importance or implying a number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more than two, unless otherwise specifically defined.
[0023] In the embodiments of the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, or it can be communicated; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0024] The following disclosure provides many different embodiments or examples for implementing different structures of the embodiments of the present application. In order to simplify the disclosure of the embodiments of the present application, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present application. In addition, the embodiments of the present application can repeatedly refer to numbers and / or letters in different examples, and such repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed.
[0025] In order to better understand the purpose, structure and function of the present application, the present application will be further described in detail below in combination with the drawings.
[0026] As Figures 1-6The utility model discloses a three cavity catheter, including main pipeline 1, the inside fixed connection flush chamber 10 of main pipeline 1, the surface of main pipeline 1 sets up liquid inlet hole 11, and liquid inlet hole 11 is located flush chamber 10 surface, and the surface fixed connection flush pipe 13 of main pipeline 1, and liquid inlet hole 11 is located flush pipe 13 inside, and the surface of main pipeline 1 sets up flush hole 12, and flush hole 12 is located flush chamber 10 surface, and the one end of flush pipe 13 is bonded hard pipe 14, and the inside fixed connection internal thread sleeve 27 of hard pipe 14, and the inside sleeve of internal thread sleeve 27 is connected with liquid baffle column 22, and the surface of liquid baffle column 22 sets up external thread, and the surface fixed connection of liquid baffle column 22 fixed ring 23, and fixed ring 23 surface bonding sealing ring 26, and sealing ring 26 surface is pasted to one end of internal thread sleeve 27, through installing liquid baffle column 22, internal thread sleeve 27 and sealing ring 26, through the rotation, liquid baffle column 22 can be installed in the inside of internal thread sleeve 27, until the sealing ring 26 on fixed ring 23 is pasted to one end of internal thread sleeve 27, at this time, using the effect of sealing ring 26 and thread installation, can provide sealing effect between internal thread sleeve 27 and liquid baffle column 22, simultaneously provide closing effect for flush pipe 13, when using, it is very convenient, and the stability after flush pipe 13 is closed is guaranteed, so that flush pipe 13 will not easily open, and the surface fixed connection of hard pipe 14 is fixed block 15, and the inside sleeve of fixed block 15 is connected with external thread rod 16, and the surface sleeve of external thread rod 16 is connected with baffle 17, and the surface sleeve of external thread rod 16 is connected with fixed frame 18, and fixed frame 18 side pastes to baffle 17, and one end fixed connection sleeve ring 19 of fixed frame 18, and one end fixed connection fixed rod 20 of liquid baffle column 22, and fixed rod 20 is located in the inside of sleeve ring 19, through installing fixed rod 20, using fixed rod 20 can drive liquid baffle column 22 to rotate, so that fixed rod 20 can control liquid baffle column 22, when using, it is very convenient.
[0027] The other end fixed connection of fixed rod 20 is connected with rotating plate 21, and sleeve ring 19 is located between rotating plate 21 and liquid baffle column 22, through installing rotating plate 21, using rotating plate 21 can directly drive rotating plate 21 to rotate, and through rotating plate 21 can provide limiting effect for fixed rod 20, so that liquid baffle column 22 will not be separated, when using, it is very convenient.
[0028] One end fixed connection of main pipeline 1 is connected with liquid outlet pipe 2, and the other end of main pipeline 1 sets up liquid outlet hole 3, through setting up liquid outlet hole 3, at this time, the urine in urethra can enter into the inside of main pipeline 1 through liquid outlet hole 3, and then can be discharged through liquid outlet pipe 2, when using, it is very convenient.
[0029] The main pipeline 1 is internally fixedly connected with the gas conveying cavity 6, the surface of the main pipeline 1 is fixedly connected with the air bag 4, the surface of the main pipeline 1 is provided with the gas conveying hole 8, the gas conveying hole 8 is located on the surface of the gas conveying cavity 6, the surface of the main pipeline 1 is fixedly connected with the gas conveying pipe 5, the gas conveying hole 8 is located in the gas conveying pipe 5, the surface of the main pipeline 1 is provided with the gas inlet hole 9, the gas inlet hole 9 is located on the surface of the gas conveying cavity 6, the gas inlet hole 9 is located in the air bag 4, the other end of the gas conveying pipe 5 is provided with the gas valve 7, by installing the air bag 4, when the urinary tube is installed in the appropriate position, at this time, the gas can be conveyed through the gas conveying pipe 5, and then can enter into the air bag 4 through the gas conveying hole 8, the gas conveying cavity 6 and the gas inlet hole 9 in turn, so that the air bag 4 is inflated, at this time, the urinary tube can be clamped in the urethral position through the air bag 4, and the stability of the urinary tube can be ensured when in use.
[0030] The other end of the external thread rod 16 is fixedly connected with the internal hexagonal sheet 28, the fixed frame 18 is in a symmetrical distribution form, by installing the internal hexagonal sheet 28, when the external thread rod 16 is installed, a suitable internal hexagonal wrench can be used to drive the external thread rod 16 to rotate through the internal hexagonal sheet 28, and the installation and dismounting effect of the fixed frame 18 can be provided by installing and dismounting the external thread rod 16, and the use is very convenient.
[0031] The surface of the fixed ring 23 is provided with the clamping groove 24, the clamping groove 24 is internally clamped with the clamping ring 25, the surface of the clamping ring 25 is fixedly connected with the sealing ring 26, by installing the clamping ring 25 and the clamping groove 24, when the sealing ring 26 is installed, the clamping ring 25 can be embedded in the clamping groove 24, at this time, the positioning effect of the sealing ring 26 can be provided when the sealing ring 26 is subsequently bonded, and the sealing ring 26 is preliminarily fixed, and the use is very convenient.
[0032] The working principle of the three-cavity urinary catheter: when using the urinary catheter, first install the fixed frame 18, at this time the outer threaded rod 16 can be installed in the fixed block 15 inside until the side of the baffle 17 is attached to the surface of the fixed frame 18, then the urinary catheter can be used, when using the urinary catheter, the urinary catheter needs to be installed in the urethra of the human body, when the urinary catheter is installed in the appropriate position, at this time the gas can be supplied through the gas pipe 5, and then the gas can enter the air bag 4 through the gas hole 8, the gas cavity 6 and the gas inlet hole 9 in turn, so that the air bag 4 is inflated, at this time the urinary catheter can be clamped in the urethral position by the air bag 4, which ensures the stability of the urinary catheter during use, at this time the flushing pipe 13 needs to be closed in time, because the flushing cavity 10 is fixedly connected in the main pipe 1, at the same time the liquid inlet hole 11 is arranged on the surface of the main pipe 1, the liquid inlet hole 11 is arranged on the surface of the flushing cavity 10, the flushing pipe 13 is fixedly connected to the surface of the main pipe 1, the liquid inlet hole 11 is arranged in the flushing pipe 13, the flushing hole 12 is arranged on the surface of the main pipe 1, the flushing pipe 13 is fixedly connected to the surface of the main pipe 1, the flushing hole 12 is arranged on the surface of the flushing cavity 10, the hard pipe 14 is bonded at one end of the flushing pipe 13, and the inner threaded sleeve 27 is fixedly connected in the hard pipe 14, at the same time the liquid blocking column 22 is sleeved in the inner threaded sleeve 27, the outer thread is arranged on the surface of the liquid blocking column 22, the fixed ring 23 is fixedly connected to the surface of the liquid blocking column 22, the sealing ring 26 is bonded on the surface of the fixed ring 23, the sealing ring 26 is attached to one end of the inner threaded sleeve 27, at the same time the fixed block 15 is fixedly connected to the surface of the hard pipe 14, the outer threaded rod 16 is sleeved in the fixed block 15, the baffle 17 is sleeved on the surface of the outer threaded rod 16, and the fixed frame 18 is sleeved on the surface of the outer threaded rod 16, the side of the fixed frame 18 is attached to the baffle 17, one end of the fixed frame 18 is fixedly connected to the sleeve ring 19, one end of the liquid blocking column 22 is fixedly connected to the fixed rod 20, the fixed rod 20 is arranged in the sleeve ring 19, when the urinary catheter is not used with the flushing pipe 13, at this time the fixed rod 20 in the sleeve ring 19 can be rotated, the liquid blocking column 22 can be rotated by the fixed rod 20, at this time the fixed rod 20 can be moved to install the liquid blocking column 22 in the inner threaded sleeve 27 by rotating, until the sealing ring 26 on the fixed ring 23 is attached to one end of the inner threaded sleeve 27, at this time the sealing effect between the inner threaded sleeve 27 and the liquid blocking column 22 is provided, and the closing effect of the flushing pipe 13 is provided, which is very convenient to use and ensures the stability of the flushing pipe 13 after being closed, so that the flushing pipe 13 cannot be easily opened, then the urinary catheter can be used, when using the urinary catheter, the urine in the urethra can enter the main pipe 1 through the liquid outlet hole 3, and then be discharged through the liquid outlet pipe 2, when the urethra needs to be flushed, the rotating plate 21 is rotated, the liquid blocking column 22 is rotated by the rotating plate 21, until the liquid blocking column 22 is separated from the hard pipe 14, then the fixed frame 18 is rotated around the outer threaded rod 16, so that the liquid blocking column 22 does not block the hard pipe 14, then the urethra can be flushed through the flushing pipe 13, when the flushing is completed, the flushing pipe 13 is closed in time.
[0033] It can be understood that the utility model is described through some embodiments, and the person skilled in the art knows that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the application belong to the scope protected by the utility model.
Claims
1. A three-lumen urinary catheter, comprising a main conduit (1), characterized in that: A flushing cavity (10) is fixedly provided inside the main pipe (1), a liquid inlet hole (11) is provided on the surface of the main pipe (1), the liquid inlet hole (11) is located on the surface of the flushing cavity (10), a flushing pipe (13) is fixedly connected to the surface of the main pipe (1), the liquid inlet hole (11) is located inside the flushing pipe (13), a flushing hole (12) is provided on the surface of the main pipe (1), the flushing hole (12) is located on the surface of the flushing cavity (10), a hard pipe (14) is bonded to one end of the flushing pipe (13), an internal threaded sleeve (27) is fixedly connected to the inside of the hard pipe (14), a liquid retaining column (22) is sleeved inside the internal threaded sleeve (27), an external thread is provided on the surface of the liquid retaining column (22), and the liquid retaining column ( The surface of the rigid tube (14) is fixedly connected to a fixing ring (23), the surface of the fixing ring (23) is bonded with a sealing ring (26), the surface of the sealing ring (26) is fitted on one end of the internal threaded sleeve (27), the surface of the rigid tube (14) is fixedly connected to a fixing block (15), the interior of the fixing block (15) is sleeved with an external threaded rod (16), the surface of the external threaded rod (16) is sleeved with a baffle (17), the surface of the external threaded rod (16) is sleeved with a fixing frame (18), the side of the fixing frame (18) is fitted with the baffle (17), one end of the fixing frame (18) is fixedly connected to a collar (19), one end of the liquid retaining column (22) is fixedly connected to a fixing rod (20), and the fixing rod (20) is located inside the collar (19).
2. The triple-lumen urinary catheter according to claim 1, characterized in that: The other end of the fixed rod (20) is fixedly connected to a rotating plate (21), and the collar (19) is located between the rotating plate (21) and the liquid-blocking column (22).
3. The triple-lumen urinary catheter according to claim 1, characterized in that: One end of the main pipeline (1) is fixedly connected to a liquid outlet pipe (2), and the other end of the main pipeline (1) is provided with a liquid outlet hole (3).
4. The triple-lumen urinary catheter according to claim 1, characterized in that: The main pipeline (1) is fixedly connected to an air delivery cavity (6) inside, the main pipeline (1) is fixedly connected to an air bag (4) on its surface, the main pipeline (1) is provided with an air delivery hole (8) on its surface, the air delivery hole (8) is located on the surface of the air delivery cavity (6), the main pipeline (1) is fixedly connected to an air delivery pipe (5) on its surface, the air delivery hole (8) is located inside the air delivery pipe (5), the main pipeline (1) is provided with an air inlet hole (9) on its surface, the air inlet hole (9) is located on the surface of the air delivery cavity (6), the air inlet hole (9) is located inside the air bag (4), and an air valve (7) is installed at the other end of the air delivery pipe (5).
5. The triple-lumen urinary catheter according to claim 1, characterized in that: The other end of the external threaded rod (16) is fixedly connected to a hexagonal piece (28), and the fixing frame (18) is symmetrically distributed.
6. The triple-lumen urinary catheter according to claim 1, characterized in that: A clamping groove (24) is provided on the surface of the fixing ring (23), a clamping ring (25) is clamped inside the clamping groove (24), and the sealing ring (26) is fixed on the surface of the clamping ring (25).