Three-way catheter connecting piece for bladder irrigation

Abstract

The utility model discloses a three-way catheter connecting piece for bladder irrigation, which can be used for monitoring flow velocity and flow data in the irrigation and drainage process in real time and calculating and feeding back the flow velocity and the flow data, so that medical staff can conveniently and timely adjust the flow velocity and the flow data. And the problem of accidental tube falling at the patient end is effectively avoided. According to the technical scheme, the three-cavity catheter is characterized in that the three-cavity catheter comprises a box body, a liquid inlet connector and a liquid outlet connector, the liquid inlet connector and the liquid outlet connector can be connected to a water injection opening and a drainage opening of an existing three-cavity catheter respectively, and a liquid inlet pipe communicated with the liquid inlet connector is arranged in the box body; a liquid inlet connected with an existing infusion tube is formed in the end, away from the liquid inlet connector, of the liquid inlet tube, a liquid outlet tube communicated with the liquid outlet connector is arranged in the box, a liquid outlet connected with an existing drainage tube is formed in the end, away from the liquid outlet connector, of the liquid outlet tube, and the liquid inlet tube and the liquid outlet tube are each provided with a flow speed detection module. A flow feedback module is arranged in the box body, and locking assemblies are arranged between the liquid inlet connector and the infusion tube and between the liquid outlet connector and the drainage tube.

Description

Technical Field

[0001] The utility model relates to the medical field, in particular to a three-way urinary catheter connector for bladder flushing. Background Art

[0002] For patients after bladder surgery, there may be fragmentary blood clots remaining in their bladder, or local bleeding may occur, so the remaining blood clots or other tissues need to be flushed out of the body as soon as possible to avoid the residual tissue or blood clots making the patient's condition worse or affecting the patient's recovery.

[0003] Bladder irrigation is a method of using a catheter to pour a flushing liquid (such as saline) into the bladder, and then use the flushing liquid to drain out the internal dirt. It can be specifically divided into closed cleaning and open cleaning. The process of closed cleaning is: first hang the infusion bag with the flushing bag on the infusion stand, close the valve of the catheter, connect the infusion bag with the water injection port of the three-chamber catheter through the infusion tube, and connect the drainage bag with the water outlet of the three-chamber catheter through the drainage tube, open the regulator of the infusion tube, and then the flushing liquid can be input into the bladder for bladder cleaning. After the flushing liquid is left in the bladder for some time, close the passage of the infusion tube through the regulator on the infusion tube, open the valve of the catheter, and drain the flushing liquid that has become waste liquid from the bladder to the drainage bag to achieve waste liquid recovery.

[0004] However, in the actual operation of bladder irrigation, there are the following problems:

[0005] 1. During the operation, medical staff cannot know the flow rate of the flushing fluid or drainage fluid, and mostly control the flow rate of the flushing fluid based on experience. If the flushing speed is too slow, the actual flushing effect will be poor, which will cause blood clots to remain attached to the bladder and affect postoperative recovery.

[0006] Second, if you need to know the total amount of flushing fluid currently injected into the patient's body or the total amount of fluid drained out in order to control the flushing volume, you need to observe the scale markings on the infusion bag or drainage bag. Checking the bag is time-consuming and not intuitive and efficient, which is inconvenient and affects actual work efficiency.

[0007] Therefore, there is a need for a connector that can quickly and in real time obtain the flow rate of the current flushing fluid or drainage fluid and has a stable connection. Utility Model Content

[0008] The purpose of the utility model is to provide a three-way urinary catheter connector for bladder flushing, which can monitor the flow rate and flow data in the flushing and drainage process in real time and calculate feedback, so that medical staff can make timely adjustments; and effectively avoid the problem of accidental tube disengagement at the patient end.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] A three-way urinary catheter connector for bladder flushing comprises a box body, a liquid inlet joint and a liquid outlet joint, wherein the liquid inlet joint and the liquid outlet joint can be respectively connected to the water injection port and the drainage port of an existing three-lumen urinary catheter, the box body is provided with a liquid inlet pipe connected to the liquid inlet joint, and the end of the liquid inlet pipe away from the liquid inlet joint is provided with a liquid inlet connected to an existing infusion pipe, the box is provided with a liquid outlet pipe connected to the liquid outlet joint, and the end of the liquid outlet pipe away from the liquid outlet joint is provided with a liquid outlet connected to an existing drainage pipe, the liquid inlet pipe and the liquid outlet pipe are both provided with a flow rate detection module, the box body is provided with a flow feedback module, and locking components are provided between the liquid inlet joint and the infusion pipe, and between the liquid outlet joint and the drainage pipe.

[0011] Compared with the prior art, the three-way urinary catheter connector for bladder flushing using the above technical solution has the following beneficial effects:

[0012] 1. The three-way urinary catheter connector for bladder flushing of the utility model is adopted, and the connection between the infusion tube, the inlet tube and the water injection port of the three-chamber urinary catheter is realized through the docking structure of the liquid inlet and the liquid inlet joint, and the connection between the drainage tube, the outlet tube and the drainage port of the three-chamber urinary catheter is realized through the docking structure of the liquid outlet and the liquid outlet joint, so as to realize the use requirements of bladder flushing and drainage of waste liquid; and the flow rate detection module is used to monitor the flow rate of the inlet tube and the outlet tube respectively and in real time, and because the pipe diameter cross-sectional area of ​​the inlet tube and the outlet tube is fixed, the real-time flow data can be calculated by the flow calculation formula under the condition of obtaining the pipe diameter cross-sectional area and the real-time flow rate, and the flow feedback module is used to display it to medical staff in real time, so that medical staff can determine the current flow rate, the total amount of waste liquid injected into the patient's body and drained out of the body in real time, so as to facilitate medical staff to make timely adjustments or suspend the continued injection of flushing liquid. It can not only improve the operating efficiency of medical staff, but also reduce the treatment time of patients, so as to save more time for patients to rest.

[0013] Second, the locking component can effectively increase the connection stability between the three-lumen urinary catheter and the connector, avoiding the problem of catheter removal or tube disengagement due to accidental movement on the patient's end, so as to maintain the smooth progress of bladder flushing and drainage.

[0014] Preferably, a one-way valve structure is provided at the liquid inlet or liquid inlet, a sealing piece is provided in the liquid outlet through the rotation of a rotating shaft, one end of the rotating shaft extends to the inside of the box body; a button is movably provided on the box body, and the button adopts a self-locking switch structure, a movable rack is provided on the side of the button facing the inside of the box body, and a convex tooth surface meshing with the movable rack is provided on the end surface of the rotating shaft located inside the box body, and the liquid outlet is in a disconnected state when the button is pressed and locked. The one-way valve structure can effectively avoid the accidental occurrence of liquid backflow during the flushing state, and there is no need to consider adjusting the switch of the infusion tube; and by utilizing the meshing connection structure of the movable rack and the convex tooth surface, the rotating shaft and the sealing piece can be driven to rotate simultaneously while the self-locking switch button is displaced, so that the sealing piece can disconnect or pass the liquid outlet, and maintain the disconnected or passed state, so as to meet the use requirements of temporarily retaining the flushing liquid in the bladder.

[0015] Preferably, the locking assembly includes a ring tube, an elastic pressure ring and a screw cap, the outer sides of the liquid inlet and outlet joints are both provided with ring tubes, the screw cap is threadedly connected to the ring tube, the elastic pressure ring is provided at the end of the ring tube away from the box body, and the caliber of the elastic pressure ring away from the ring tube is smaller than the caliber of the elastic pressure ring close to the ring tube, the screw cap is penetrated with a perforation, and a fixing ring is provided inside the screw cap, and when the screw cap gradually docks with the ring tube, the fixing ring gradually moves and presses on the outer peripheral surface of the elastic pressure ring. By surrounding and pressing the elastic pressure ring, the elastic pressure ring is wrapped and tightly fixed to the outer side of the tube body of the three-lumen urinary catheter, and because the elastic pressure ring is fixedly connected to the box body through the ring tube, a stable docking between the box body and the three-lumen urinary catheter is achieved.

[0016] Preferably, the ring tube surface is provided with a reminder surface of a striking color, and when the screw cap is completely connected to the ring tube, the screw cap completely covers the reminder surface. The visual stimulation of the striking color can remind medical staff whether the screw cap and the ring tube are completely connected, so as to ensure the connection stability between the box body and the three-lumen urinary catheter.

[0017] Preferably, the flow rate detection module uses a flow rate sensor, and the flow rate feedback module includes a control unit and a display screen provided on the box body, and the control unit is connected to the flow rate sensor and the display screen through a circuit. After the control unit calculates in real time through a preset flow calculation program, it transmits the signal data in real time to the display screen on the surface of the box body and provides feedback at the same time.

[0018] Preferably, the box body is also provided with a light alarm and a sound alarm, and the light alarm and the sound alarm are both connected to the control unit circuit. When the flow rate is abnormal or no liquid flows through, multiple visual and auditory reminders are used to remind medical staff to make adjustments or remove the tube to the greatest extent possible.

[0019] Preferably, the box body is provided with a guide mark for guiding the docking position of the infusion tube, drainage tube and urinary catheter. Since there are multiple interface positions on the box body, the guide mark facilitates medical staff to quickly and intuitively determine the docking position of each catheter, effectively improving the use efficiency of the connector.

[0020] Preferably, the liquid inlet and outlet joints are detachably connected with protective sleeves, and the liquid inlet and outlet are detachably connected with sealing plugs. The isolation structure of the protective sleeve and the sealing plug can effectively isolate external infection, thereby facilitating production transportation and storage in hospitals, thereby ensuring the safety of the connector when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an embodiment of a three-way urinary catheter connector for bladder flushing of the utility model.

[0022] Figure 2 It is a schematic diagram of the overall structure in the embodiment.

[0023] Figure 3 It is a schematic diagram of the structure of the screw cap in the embodiment in the disassembled state.

[0024] Figure 4 Schematic diagram of the structure of the locking assembly in the embodiment.

[0025] Figure 5 Schematic diagram of the positions of the blocking piece, the rotating shaft and the movable rack in the embodiment.

[0026] Figure 6 Schematic diagram of the structure of the movable rack and the convex tooth surface in the embodiment.

[0027] Figure numerals: 0, three-lumen urinary catheter; 1, box body; 10, liquid inlet tube; 11, liquid inlet port; 12, liquid outlet tube; 13, liquid outlet port; 14, rotating shaft; 15, sealing plate; 16, convex tooth surface; 2, liquid inlet connector; 3, liquid outlet connector; 4, infusion tube; 5, drainage tube; 6, locking assembly; 60, ring tube; 61, elastic pressure ring; 62, screw cap; 63, fixing ring; 64, prompt surface; 7, button; 70, movable rack; 8, display screen; 80, light alarm; 81, sound alarm; 9, guide mark. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings.

[0029] like Figures 1 to 6 The three-way urinary catheter connector for bladder flushing shown comprises a box body 1 , a liquid inlet connector 2 and a liquid outlet connector 3 .

[0030] The liquid inlet connector 2 and the liquid outlet connector 3 can be respectively connected to the water injection port and the drainage port of the existing three-chamber urinary catheter 0. A liquid inlet pipe 10 connected to the liquid inlet connector 2 is provided in the box body 1, and an end of the liquid inlet pipe 10 away from the liquid inlet connector 2 is provided with a liquid inlet port 11 connected to the existing infusion tube 4. A liquid outlet pipe 12 connected to the liquid outlet connector 3 is provided in the box, and an end of the liquid outlet pipe 12 away from the liquid outlet connector 3 is provided with a liquid outlet port 13 connected to the existing drainage tube 5.

[0031] The three-lumen urinary catheter 0, the infusion tube 4 and the drainage tube 5 are all catheters used in the existing medical technology. In the existing technology, the infusion tube 4 is used to connect the flushing liquid bag body and the water injection port of the three-lumen urinary catheter 0, and the drainage tube 5 is used for the drainage bag and the drainage port of the three-lumen urinary catheter 0. In this embodiment, considering the compatibility with the existing bladder flushing system, the liquid inlet 11 can adopt a medical threaded interface or a structure at the water injection port of the three-lumen urinary catheter 0, so that the liquid inlet 11 can be connected with the infusion tube 4; the liquid inlet connector 2 can be directly inserted into the water injection port of the three-lumen urinary catheter 0 for connection, or the liquid inlet connector 2 adopts a medical connection connector between the original infusion tube 4 and the water injection port.

[0032] The liquid outlet 13 can adopt a medical threaded interface or the structure of the drainage port of the three-lumen urinary catheter 0, so as to realize the docking of the liquid outlet 13 and the drainage tube 5; the liquid outlet connector 3 can be directly inserted into the drainage port of the three-lumen urinary catheter 0 for docking, or the liquid outlet connector 3 adopts the medical docking connector between the original drainage tube 5 and the drainage port.

[0033] The liquid inlet pipe 10 and the liquid outlet pipe 12 are both provided with a flow rate detection module, and a flow rate feedback module is provided in the box body 1. The flow rate detection module can adopt the rotation speed statistical structure or flow rate sensor of the existing water meter. Considering the coordinated use with the flow rate feedback module, the flow rate detection module adopts the flow rate sensor of the existing technology. The flow rate feedback module includes a control unit and a display screen 8 provided on the box body 1. The control unit is connected to the flow rate sensor and the display screen 8 through a circuit at the same time.

[0034] In order to remind the medical staff in time when the flushing is completed, the box body 1 is also provided with a light alarm 80 and a sound alarm 81, and the light alarm 80 and the sound alarm 81 are both connected to the control unit circuit. In this embodiment, the light alarm 80 can adopt the LED light bar of the prior art, and the sound alarm 81 can adopt the voice announcer of the prior art.

[0035] In order to facilitate medical staff to quickly get started, the box body 1 is provided with a guide mark 9 for guiding the docking position of the infusion tube 4, the drainage tube 5 and the urinary catheter.

[0036] In addition, to facilitate the transportation and storage of the connectors, the liquid inlet connector 2 and the liquid outlet connector 3 can be detachably connected with a protective cover (such as an iodine cap or a sterile cover), and the liquid inlet 11 and the liquid outlet 13 can be detachably connected with a sealing plug.

[0037] In order to avoid accidental tube detachment during flushing, a locking assembly 6 is provided between the liquid inlet connector 2 and the infusion tube 4 and between the liquid outlet connector 3 and the drainage tube 5. The locking assembly 6 includes a ring tube 60, an elastic pressure ring 61 and a screw cap 62.

[0038] An annular tube 60 is provided on the outside of the liquid inlet joint 2 and the liquid outlet joint 3, and a screw cap 62 is threadedly connected to the annular tube 60. An elastic pressure ring 61 is provided at the end of the annular tube 60 away from the box body 1, and the diameter of the elastic pressure ring 61 away from the annular tube 60 is smaller than the diameter of the elastic pressure ring 61 close to the annular tube 60. A through hole is penetrated by the screw cap 62, and a fixing ring 63 is provided inside the screw cap 62. When the screw cap 62 gradually docks with the annular tube 60, the fixing ring 63 gradually moves and presses on the outer peripheral surface of the elastic pressure ring 61.

[0039] In order to facilitate medical staff to know whether the connection is complete, a reminder surface 64 of a striking color (such as bright red or bright orange) is provided on the surface of the ring tube 60. When the screw cap 62 is completely connected to the ring tube 60, the screw cap 62 completely covers the reminder surface 64.

[0040] In addition, in order to avoid the backflow of the flushing liquid and to meet the demand of temporarily retaining the flushing liquid in the bladder, a one-way valve structure is provided at the liquid inlet pipe 10 or the liquid inlet 11, and a sealing piece 15 is provided in the liquid outlet pipe 12 through the rotation of the rotating shaft 14, and one end of the rotating shaft 14 extends to the inside of the box body 1; a button 7 is movably provided on the box body 1, and the button 7 adopts a self-locking switch structure. The self-locking switch structure can refer to the push switch of the power strip or ballpoint pen in the prior art. After being pressed, it locks the pressed state, and pressing it again can release the locked state and pop up; a movable rack 70 is provided on the side of the button 7 facing the inside of the box body 1, and a convex tooth surface 16 meshing with the movable rack 70 is provided on the end surface of the rotating shaft 14 located inside the box body 1. When the button 7 is pressed and locked, the liquid outlet pipe 12 is in an open circuit state.

[0041] The following is the usage of this embodiment:

[0042] First, remove the protective covers at the liquid inlet joint 2 and the liquid outlet joint 3, remove the sealing plugs at the liquid inlet 11 and the liquid outlet 13, properly exhaust the air by discharging the liquid through the infusion tube 4, connect the end of the infusion tube 4 away from the flushing liquid bag to the liquid inlet 11, and connect the end of the drainage tube 5 away from the drainage bag to the liquid outlet 13.

[0043] Then, the two screw caps 62 are rotated to separate the two screw caps 62 from the corresponding ring tube 60, respectively, to expose the liquid inlet connector 2 and the liquid outlet connector 3, and the water inlet of the three-lumen urinary catheter 0 is passed through the perforation of one of the screw caps 62 and inserted into the liquid outlet connector 3; the drainage port of the three-lumen urinary catheter 0 is passed through the perforation of one of the screw caps 62 and inserted into the liquid outlet connector 3.

[0044] like Figure 4 As shown, the screw cap 62 and the ring tube 60 are threadedly connected. During the process of the screw cap 62 gradually docking with the ring tube 60, the fixed ring 63 in the screw cap 62 gradually moves and presses on the outer circumference of the elastic pressure ring 61, so that the elastic pressure rings 61 at the two locations are respectively tightly wrapped around the pipe body of the water inlet and the drainage port. At this point, the assembly of the connector is completed.

[0045] Afterwards, if Figure 5 and Figure 6 The push button 7 shown in the figure, through the structural principle of the self-locking switch, automatically locks the position after being pressed, and while the button 7 drives the movable rack 70 to move, because the movable rack 70 is meshed with the convex tooth surface 16 of the rotating shaft 14, the rotating shaft 14 is forced to drive the blocking piece 15 to rotate, and the passage of the liquid outlet tube 12 is temporarily blocked by the blocking piece. The bladder flushing operation is performed according to medical requirements, and the switch of the infusion tube 4 is turned on so that the flushing liquid passes through the liquid inlet 11, the liquid inlet tube 10, the liquid outlet connector 3 and the three-chamber urinary catheter 0 in sequence until it enters the patient's bladder. In this process, the one-way valve can prevent the flushing liquid from backflowing.

[0046] After the flushing liquid has been retained in the bladder for a period of time, it needs to be discharged. At this time, the button 7 needs to be pressed again. While the movable rack 70 drives the rotating shaft 14 to reset, the blocking member will reset and open the passage of the liquid outlet tube 12 to drain the flushing liquid in the patient's bladder. The flushing liquid will pass through the three-lumen urinary catheter 0, the liquid outlet connector 3, the liquid outlet tube 12, and the liquid outlet 13 in sequence until it enters the drainage bag through the drainage tube 5, completing the bladder flushing and drainage operations.

[0047] During the flushing and drainage process, the flow rate sensors of the inlet tube 10 and the outlet tube 12 will monitor the flow rate conditions in the corresponding tubes in real time, and synchronize the flow rate data to the control unit in real time. The control unit calculates the current flow state according to a preset calculation formula (flow data = tube cross-section data * flow rate data) and the fixed tube cross-section data of the inlet tube 10 and the outlet tube 12, and displays the real-time flow rate and flow data of the current inlet tube 10 and the outlet tube 12 through the display screen 8, so that medical staff can adjust the flushing speed or drainage speed through the speed control switch at the three-lumen catheter 0, infusion tube 4 or drainage tube 5.

[0048] The above is a preferred embodiment of the present invention. A person skilled in the art may make several modifications and improvements without departing from the principle of the present invention, and these modifications and improvements shall also be regarded as within the protection scope of the present invention.

Claims

1. A three-way urinary catheter connector for bladder flushing, characterized in that: The invention comprises a box body (1), a liquid inlet connector (2) (2) (2) and a liquid outlet connector (3), wherein the liquid inlet connector (2) (2) (2) and the liquid outlet connector (3) can be respectively connected to the water injection port and the drainage port of an existing three-lumen urinary catheter (0), the box body (1) is provided with a liquid inlet pipe (10) connected to the liquid inlet connector (2) (2), and the end of the liquid inlet pipe (10) away from the liquid inlet connector (2) is provided with a liquid inlet port (11) connected to an existing infusion tube (4), The box body (1) is provided with a liquid outlet pipe (12) connected to the liquid outlet joint (3), and an end of the liquid outlet pipe (12) away from the liquid outlet joint (3) is provided with a liquid outlet (13) connected to the existing drainage pipe (5), the liquid inlet pipe (10) and the liquid outlet pipe (12) are both provided with flow rate detection modules, the box body (1) is provided with a flow feedback module, and locking components (6) are provided between the liquid inlet joint (2) and the infusion pipe (4) and between the liquid outlet joint (3) and the drainage pipe (5).

2. The three-way urinary catheter connector for bladder irrigation according to claim 1, characterized in that: A one-way valve structure is provided at the liquid inlet pipe (10) or the liquid inlet port (11); a sealing piece (15) is provided in the liquid outlet pipe (12) through a rotating shaft (14), one end of the rotating shaft (14) extends toward the inside of the box body (1); a button (7) is movably provided on the box body (1), and the button (7) adopts a self-locking switch structure; a movable rack (70) is provided on the side of the button (7) facing the inside of the box body (1); a convex tooth surface (16) meshing with the movable rack (70) is provided on the end surface of the rotating shaft (14) located inside the box body (1); when the button (7) is pressed and in a locked state, the liquid outlet pipe (12) is in a disconnected state.

3. The three-way urinary catheter connector for bladder irrigation according to claim 1, characterized in that: The locking assembly (6) comprises a ring tube (60), an elastic pressure ring (61) and a screw cap (62). The outer sides of the liquid inlet joint (2) and the liquid outlet joint (3) are both provided with a ring tube (60). The screw cap (62) is threadedly connected to the ring tube (60). The elastic pressure ring (61) is provided at the end of the ring tube (60) away from the box body (1), and the diameter of the side of the elastic pressure ring (61) away from the ring tube (60) is smaller than the diameter of the side of the elastic pressure ring (61) close to the ring tube (60). The screw cap (62) is provided with a through hole, and a fixing ring (63) is provided inside the screw cap (62). When the screw cap (62) gradually docks with the ring tube (60), the fixing ring (63) gradually moves and presses on the outer peripheral surface of the elastic pressure ring (61).

4. The three-way urinary catheter connector for bladder irrigation according to claim 3, characterized in that: The surface of the ring tube (60) is provided with a reminder surface (64) of a striking color, and when the screw cap (62) and the ring tube (60) are completely connected, the screw cap (62) completely covers the surface of the reminder surface (64).

5. The three-way urinary catheter connector for bladder irrigation according to claim 1, characterized in that: The flow rate detection module adopts a flow rate sensor, and the flow rate feedback module comprises a control unit and a display screen (8) arranged on the box body (1), and the control unit is connected to the flow rate sensor and the display screen (8) through a circuit.

6. The three-way urinary catheter connector for bladder irrigation according to claim 5, characterized in that: The box body (1) is also provided with a light alarm (80) and a sound alarm (81), and both the light alarm (80) and the sound alarm (81) are connected to the control unit circuit.

7. The three-way urinary catheter connector for bladder irrigation according to claim 1, characterized in that: The box body (1) is provided with a guide mark (9) for guiding the docking position of the infusion tube (4), the drainage tube (5) and the urinary catheter.

8. The three-way urinary catheter connector for bladder irrigation according to any one of claims 1 to 7, characterized in that: The liquid inlet joint (2) and the liquid outlet joint (3) are both detachably connected with protective sleeves, and the liquid inlet (11) and the liquid outlet (13) are both detachably connected with sealing plugs.

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