Anti-backflow bladder irrigator

Abstract

The utility model discloses an anti-backflow bladder irrigator which comprises a needle cylinder, a connecting plate is arranged in the needle cylinder in a sliding mode, a through hole is formed in the connecting plate, a first piston is fixedly arranged on one side of the connecting plate, a second piston is arranged in the first piston in a separable mode, the through hole is blocked by the second piston, and a first pushing assembly is arranged on the connecting plate. One end of the needle cylinder is provided with a first liquid inlet and a second liquid inlet, the other end of the needle cylinder is provided with a first liquid outlet and a second liquid outlet, the second liquid outlet is communicated with a catheter, the other end of the catheter is connected with a flushing pipe, and the other end of the flushing pipe is communicated with the second liquid inlet; the flushing pipe is provided with a flushing opening and a backflow opening. After the bladder is cleaned, the backflow channel can be cleaned in time, bacteria are not prone to breeding, and the difficulty of cleaning and disinfecting the device in the later period is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bladder flushing, in particular to an anti-reflux bladder flushing device. Background Art

[0002] Bladder irrigation is a method of using a catheter to pour a solution into the bladder and then drain the poured liquid out by the siphon principle. In order to clean out foreign matter such as mucus and bacteria in the bladder, an anti-reflux bladder irrigator is needed.

[0003] A bladder flushing device is disclosed in a Chinese patent document with publication number CN220158894U, including a sleeve and a piston, a push assembly is installed on the piston, the push assembly includes a pull plate and a slide rod, inlet and outlet assemblies are installed at both ends of the sleeve, the inlet and outlet assemblies include an inlet pipe and an outlet pipe, a flushing assembly is installed on the top of the sleeve, the flushing assembly includes a urinary catheter and a punch, and a partition mechanism is installed on the inner side of the urinary catheter. The urinary catheter is inserted into the bladder until urine is seen to enter the inner side of the right side of the sleeve through the return port and the second through cavity, the piston is pushed to the left through the pull plate, and the flushing liquid is sucked through the left inlet of the sleeve, and the piston is pulled to the left, and the flushing liquid is passed into the punch through the through cavity 1 in the urinary catheter, and then passed into the inner side of the bladder, and the liquid generated by the flushing flows back to the right side of the sleeve through the return port and the second through cavity in the urinary catheter. On the one hand, the liquid generated by the flushing is directly discharged outward during the flushing process.

[0004] The disadvantage of the above disclosed solution is that although the inlet and the loop are independent of each other and dirt will not be passed into the inside of the bladder again, after the bladder is cleaned, the loop cavity cannot be cleaned in time, which is easy to breed bacteria, increasing the difficulty of cleaning and disinfecting the device in the later stage and reducing work efficiency. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide an anti-reflux bladder flusher, which can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reflux prevention bladder flusher, comprising a syringe, a connecting plate slidably arranged in the syringe, a through hole being opened on the connecting plate, a first piston being fixedly arranged on one side of the connecting plate, a second piston being detachably arranged in the first piston, the through hole being blocked by the second piston, a first pushing assembly being arranged on the connecting plate, a second pushing assembly being arranged on the second piston, a first liquid inlet and a second liquid inlet being arranged at one end of the syringe, a first liquid discharge port and a second liquid discharge port being arranged at the other end of the syringe, a urinary catheter being connected to the second liquid discharge port, a flushing tube being connected to the other end of the urinary catheter, the other end of the flushing tube being connected to the second liquid inlet, and a flushing port and a reflux port being opened on the flushing tube.

[0007] Furthermore, a first one-way valve is provided in the first liquid inlet, and the first liquid inlet is unidirectionally connected to the interior of the syringe through the first one-way valve; a second one-way valve is provided in the second liquid inlet, and the second liquid inlet is unidirectionally connected to the interior of the syringe through the second one-way valve; a third one-way valve is provided in the first liquid discharge port, and the first liquid discharge port is unidirectionally connected to the interior of the syringe through the third one-way valve.

[0008] Furthermore, a fourth one-way valve is arranged in the second liquid discharge port, and the fourth one-way valve includes a conical spring and a ball. The end with a larger diameter of the conical spring is fixedly connected to the inner wall of the second liquid discharge port, and the end with a smaller diameter of the conical spring is fixedly connected to the ball. The ball blocks the second liquid discharge port. A screw is arranged on the second liquid discharge port, and the screw is threadedly connected to the second liquid discharge port. One end of the screw passes through the second liquid discharge port and extends to the interior of the second liquid discharge port. One end of the screw slides with the ball to move the ball.

[0009] Furthermore, the first pushing assembly includes a sleeve, one end of the sleeve is fixedly connected to the connecting plate, the other end of the sleeve passes through the syringe and extends to the outside of the syringe, the sleeve is slidably connected to the syringe, and the other end of the sleeve is fixedly provided with a second pull plate.

[0010] Furthermore, the second pushing assembly includes a pull rod, which is slidably arranged in the sleeve, one end of the pull rod passes through the connecting plate and is fixedly connected to the second piston, the other end of the pull rod is provided with a first pull plate, and a fixing member is provided between the first pull plate and the second pull plate to prevent the pull rod from sliding.

[0011] Furthermore, the fixing member is a spring, which is sleeved on the pull rod, one end of the spring is fixedly connected to the first pull plate, and the other end of the spring is fixedly connected to the second pull plate.

[0012] Furthermore, the fixing member is a threaded column, which passes through the second pull plate and is threadedly connected to the second pull plate, one end of the threaded column is rotatably connected to the pull rod, and the other end of the threaded column is fixedly connected to the first pull plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] Since the second piston is detachably arranged in the first piston, the second piston blocks the through hole, the first push assembly is arranged on the connecting plate, and the second push assembly is arranged on the second piston. Therefore, the left space of the connecting plate in the syringe can be connected with the right side, and the cleaning liquid flows into the left side of the connecting plate in the syringe through the through hole, and then the first piston and the second piston are moved to the left to squeeze the cleaning liquid, a part of the cleaning liquid is discharged through the first drainage port, and the other part of the cleaning liquid enters the catheter through the second drainage port and is discharged through the reflux port, thereby completing the flushing of the first drainage port, the third one-way valve, the second drainage port, the fourth one-way valve and the catheter. After cleaning the bladder, the reflux channel can be cleaned in time, and it is not easy to breed bacteria, which reduces the difficulty of cleaning and disinfecting the device in the later stage and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the first embodiment of the structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the first embodiment of the structure of the utility model;

[0017] Figure 3 It is a cross-sectional view of the second liquid discharge port of the first structural embodiment of the utility model;

[0018] Figure 4 It is a three-dimensional diagram of the second structural embodiment of the utility model;

[0019] Figure 5 It is a cross-sectional view of some parts of the second structural embodiment of the utility model.

[0020] In the figure: 1. syringe; 2. first pull plate; 3. pull rod; 4. spring; 5. second pull plate; 6. sleeve; 7. connecting plate; 8. first piston; 9. second piston; 10. through hole; 11. first liquid inlet; 12. first one-way valve; 13. second liquid inlet; 14. second one-way valve; 15. first liquid discharge port; 16. third one-way valve; 17. second liquid discharge port; 18. fourth one-way valve; 19. flushing tube; 20. urinary catheter; 21. fixing block; 22. reflux port; 23. flushing port; 24. screw; 25. threaded column. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1

[0023] See also Figure 1-Figure 3 This embodiment provides a technical solution: an anti-reflux bladder flusher, comprising a syringe 1, a connecting plate 7 is slidably installed in the syringe 1, a first piston 8 is fixedly installed on one side of the connecting plate 7, and the outer peripheral surface of the first piston 8 is slidably installed with the inner wall of the syringe 1. A first push assembly is installed on the side of the connecting plate 7 away from the first piston 8, and the first push assembly includes a sleeve 6, one end of the sleeve 6 is fixedly installed with one side of the connecting plate 7, the other end of the sleeve 6 passes through the syringe 1 along the axial direction of the syringe 1 and extends to the outside of the syringe 1, the sleeve 6 is slidably installed with the syringe 1, and a second pull plate 5 is fixedly installed on the other end of the sleeve 6.

[0024] The second piston 9 is detachably installed in the first piston 8. A through hole is provided on the first piston 8, which is adapted to the second piston 9, and the second piston 9 is slidably installed with the through hole. A plurality of through holes 10 are provided on the connecting plate 7 along the circumferential array of the sleeve 6, and the second piston 9 can block the plurality of through holes 10. A second pushing assembly is installed on the side of the second piston 9 close to the connecting plate 7, and the second pushing assembly includes a pull rod 3, which is slidably installed in the sleeve 6, and one end of the pull rod 3 passes through the connecting plate 7 and is fixedly installed with the second piston 9.

[0025] The other end of the pull rod 3 is installed with a first pull plate 2, and a fixing piece is installed between the first pull plate 2 and the second pull plate 5 to prevent the pull rod 3 from sliding. The fixing piece is a spring 4, which is sleeved on the pull rod 3, one end of the spring 4 is fixedly mounted with the first pull plate 2, and the other end of the spring 4 is fixedly mounted with the second pull plate 5.

[0026] A first liquid inlet 11 and a second liquid inlet 13 are installed at one end of the syringe 1. A first one-way valve 12 is installed in the first liquid inlet 11. The first liquid inlet 11 is in one-way communication with the inside of the syringe 1 through the first one-way valve 12, and liquid can only enter the syringe 1 from the outside through the first liquid inlet 11. A second one-way valve 14 is installed in the second liquid inlet 13. The second liquid inlet 13 is in one-way communication with the inside of the syringe 1 through the second one-way valve 14, and liquid can only flow out of the syringe 1 through the second liquid inlet 13.

[0027] The other end of the syringe 1 is provided with a first discharge port 15 and a second discharge port 17. A third one-way valve 16 is installed in the first discharge port 15. The first discharge port 15 is unidirectionally connected to the inside of the syringe 1 through the third one-way valve 16. Liquid can only flow out of the syringe 1 through the first discharge port 15.

[0028] A fourth one-way valve 18 is installed in the second liquid discharge port 17. The fourth one-way valve 18 includes a conical spring and a ball. The end of the conical spring with a larger diameter is fixedly mounted with the inner wall of the second liquid discharge port 17, and the end of the conical spring with a smaller diameter is fixedly mounted with the ball. The ball blocks the internal passage of the second liquid discharge port 17, so that liquid can only enter the interior of the syringe 1 from the outside through the second liquid discharge port 17.

[0029] A screw 24 is installed on the second drain port 17, and the screw 24 is threadedly connected to the second drain port 17. One end of the screw 24 passes through the second drain port 17 and extends to the inside of the second drain port 17. One end of the screw 24 slides with the ball to move the ball, so that the ball no longer blocks the internal channel of the second drain port 1, and the internal channel of the second drain port 1 forms a passage.

[0030] The end of the second liquid discharge port 17 away from the syringe is connected to a urinary catheter 20, and the other end of the urinary catheter 20 is connected to a flushing tube 19, and the other end of the flushing tube 19 is connected to the second liquid inlet 13. The flushing tube 19 is provided with a flushing port 23 and a reflux port 22. The flushing tube 19 is of an irregular shape, and a fixing block 21 is installed between the two ends of the flushing tube 19. The top of the fixing block 21 is fixedly sleeved at the connection between the flushing tube 19 and the urinary catheter 20 to fix the connection between the flushing tube 19 and the urinary catheter 20. The bottom of the fixing block 21 is fixedly sleeved at the connection between the flushing tube 19 and the second liquid inlet 13 to fix the connection between the flushing tube 19 and the second liquid inlet 13.

[0031] The working principle of the anti-reflux bladder flusher provided in this embodiment is as follows:

[0032] When in use, first suck the cleaning liquid through the first liquid inlet 11, pull the first pull plate 2 to the left by hand, the first pull plate 2 drives the pull rod 3 to the left, and the pull rod 3 drives the second piston 9 to move synchronously. The second piston 9 drives the connecting plate 7 and the sleeve 6 to move to the left, and the first piston 8 also moves to the left with the connecting plate 7. The first piston 8 and the second piston 9 move to the left to open the first one-way valve 12, and the cleaning liquid is sucked into the interior of the syringe 1 through the first liquid inlet 11. Stop pulling the first pull plate 2 to the left until enough cleaning liquid is sucked into the syringe 1, at which time, the first one-way valve 12 is closed.

[0033] During the process of extracting cleaning fluid, as the space of the syringe 1 on the right side of the second piston 9 becomes larger, the space on the left side is gradually compressed. At this time, the third one-way valve 16 opens and the ball of the fourth one-way valve 18 blocks the internal channel of the second drain port, so the air on the left side of the syringe 1 will be discharged through the first drain port 15.

[0034] Then, the flushing tube 19 is inserted into the bladder, pushing the second pull plate 5 to move rightward, the second pull plate 5 drives the sleeve 6 and the connecting plate 7 to move rightward, and the connecting plate 7 drives the first piston 8 and the second piston 9 to move rightward. The first piston 8 and the second piston 9 move rightward to squeeze the cleaning liquid in the syringe 1. At this time, the first one-way valve 12 is closed and the second one-way valve 14 is in an open state, so the cleaning liquid is squeezed out from the first liquid outlet 13 and enters the flushing tube 19 after being pressurized, and finally the cleaning liquid is discharged through the flushing port 23, thereby cleaning the bladder.

[0035] While the bladder is being cleaned, the space on the left side of the connecting plate 9 in the syringe 1 becomes larger and generates negative pressure, thereby generating suction. At this time, the third one-way valve 16 is closed and the fourth one-way valve 18 is opened, so that the urinary catheter 20 is connected to the inside of the syringe 1 through the second drainage port 17. At this time, the liquid cleaned in the bladder is sucked into the urinary catheter 20 through the reflux port 22, and flows back to the space on the left side of the connecting plate 9 in the syringe 1 through the urinary catheter 20. Therefore, during the flushing process, the liquid after the bladder is cleaned flows back into the syringe 1, improving work efficiency and reducing the swelling of the bladder.

[0036] After flushing, the flushing tube 19 is taken out from the bladder, and the waste liquid in the syringe 1 is discharged. The first pull plate 2 is pulled to drive the first piston 8 and the second piston 9 to move leftward in the syringe 1, so that the waste liquid in the syringe 1 is discharged through the first discharge port 15.

[0037] Next, the channel for the liquid to flow back after bladder cleaning is cleaned. When there is unused cleaning liquid on the right side of the connecting plate 9 in the syringe 1, the second pull plate 5 is fixed by hand, and then the first pull plate 2 is pushed to the right. The first pull plate 2 drives the pull rod 3 to slide in the sleeve 6 and compresses the spring 4 at the same time. The pull rod 3 drives the second piston 9 to move to the right, and the second piston 9 slides out from the through hole in the first piston 8, and the through hole 10 is no longer blocked, so that the left space of the connecting plate 9 in the syringe 1 is connected to the right side.

[0038] At the same time, the first pull plate 2 is pushed rightward, and the first pull plate 2 squeezes the cleaning liquid on the right side of the connecting plate 9 in the syringe 1 through the second piston 9, and the cleaning liquid flows into the left side of the connecting plate 9 in the syringe 1 through the through hole 10. At the same time, part of the cleaning liquid enters the flushing tube 19 through the second liquid inlet 13 and is discharged through the flushing port 23, and the flushing port 23 is also cleaned to prevent the flushing port 23 from being blocked. Then the first pull plate 2 is released, and the first pull plate 2 moves leftward under the action of the restoring force of the spring 4, so that the second piston 9 blocks the through hole 10 again.

[0039] Then, the first screw 24 is turned, and the insertion end of the screw 24 contacts the ball of the fourth one-way valve 18. As the insertion end of the screw 24 slides on the surface of the ball of the fourth one-way valve 18, the ball of the fourth one-way valve 18 moves and no longer blocks the internal channel of the second drainage port 17, thereby connecting the catheter 20 with the interior of the syringe 1.

[0040] Then, the second pull plate 5 is pulled to the left, so that the first piston 8 and the second piston 9 move to the left, thereby squeezing the cleaning liquid. A part of the cleaning liquid is discharged through the first drain port 15, and the other part of the cleaning liquid enters the catheter 20 through the second drain port 17 and is discharged through the reflux port 22. At this time, the flushing of the first drain port 15, the third one-way valve 16, the second drain port 17, the fourth one-way valve 18 and the catheter 20 is completed.

[0041] Embodiment 2

[0042] See also Figure 4-Figure 5 This embodiment provides a technical solution: The difference from the first embodiment is that:

[0043] The fixing member is a threaded column 25 , which passes through the second pull plate 5 and is threadedly connected to the second pull plate 5 , one end of the threaded column 25 extends into the sleeve 6 and is rotatably mounted with the pull rod 3 , and the other end of the threaded column 25 is fixedly mounted with the first pull plate 2 .

[0044] The working principle of this embodiment is different from that of the embodiment in that:

[0045] The channel for the liquid to flow back after bladder cleaning is cleaned. When there is unused cleaning liquid on the right side of the connecting plate 9 in the syringe 1, fix the second pull plate 5 by hand, and then rotate the first pull plate 2. The first pull plate 2 drives the threaded column 25 to rotate, and the pull rod 3 is driven to move to the right under the action of the rotation of the threaded column 25. The second piston 9 of the pull rod 3 moves to the right, and the second piston 9 slides out from the through hole in the first piston 8, and the through hole 10 is no longer blocked, so that the left space of the connecting plate 9 in the syringe 1 is connected to the right side.

[0046] At the same time, continue to push the first pull plate 2 to the right. The first pull plate 2 squeezes the cleaning liquid on the right side of the connecting plate 9 in the syringe 1 through the second piston 9. The cleaning liquid flows into the left side of the connecting plate 9 in the syringe 1 through the through hole 10. At the same time, a part of the cleaning liquid enters the flushing tube 19 through the second liquid inlet 13 and is discharged through the flushing port 23. The flushing port 23 is also cleaned to prevent the flushing port 23 from being blocked.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-reflux bladder irrigator, comprising a syringe (1), characterized in that: A connecting plate (7) is slidably arranged in the syringe (1), a through hole (10) is provided on the connecting plate (7), a first piston (8) is fixedly arranged on one side of the connecting plate (7), a second piston (9) is detachably arranged in the first piston (8), the second piston (9) blocks the through hole (10), a first pushing assembly is arranged on the connecting plate (7), a second pushing assembly is arranged on the second piston (9), a first liquid inlet (11) and a second liquid inlet (13) are arranged at one end of the syringe (1), a first liquid discharge port (15) and a second liquid discharge port (17) are arranged at the other end of the syringe (1), a urinary catheter (20) is connected to the second liquid discharge port (17), the other end of the urinary catheter (20) is connected to a flushing pipe (19), the other end of the flushing pipe (19) is connected to the second liquid inlet (13), and a flushing port (23) and a reflux port (22) are arranged on the flushing pipe (19).

2. The anti-reflux bladder irrigator according to claim 1, characterized in that: A first one-way valve (12) is arranged in the first liquid inlet (11), and the first liquid inlet (11) is in one-way communication with the interior of the syringe (1) via the first one-way valve (12); a second one-way valve (14) is arranged in the second liquid inlet (13), and the second liquid inlet (13) is in one-way communication with the interior of the syringe (1) via the second one-way valve (14); a third one-way valve (16) is arranged in the first liquid discharge port (15), and the first liquid discharge port (15) is in one-way communication with the interior of the syringe (1) via the third one-way valve (16).

3. The anti-reflux bladder irrigator according to claim 2, characterized in that: A fourth one-way valve (18) is arranged in the second liquid discharge port (17), and the fourth one-way valve (18) comprises a conical spring and a ball. An end of the conical spring with a larger diameter is fixedly connected to the inner wall of the second liquid discharge port (17), and an end of the conical spring with a smaller diameter is fixedly connected to the ball. The ball blocks the second liquid discharge port (17). A screw (24) is arranged on the second liquid discharge port (17), and the screw (24) is threadedly connected to the second liquid discharge port (17). One end of the screw (24) passes through the second liquid discharge port (17) and extends to the inside of the second liquid discharge port (17). One end of the screw (24) slides with the ball to move the ball.

4. The anti-reflux bladder irrigator according to claim 1, characterized in that: The first pushing assembly comprises a sleeve (6), one end of the sleeve (6) is fixedly connected to the connecting plate (7), the other end of the sleeve (6) passes through the syringe (1) and extends to the outside of the syringe (1), the sleeve (6) is slidably connected to the syringe (1), and the other end of the sleeve (6) is fixedly provided with a second pulling plate (5).

5. The anti-reflux bladder irrigator according to claim 4, characterized in that: The second pushing assembly comprises a pull rod (3), the pull rod (3) is slidably arranged in a sleeve (6), one end of the pull rod (3) passes through a connecting plate (7) and is fixedly connected to a second piston (9), the other end of the pull rod (3) is provided with a first pull plate (2), and a fixing member is provided between the first pull plate (2) and the second pull plate (5) to prevent the pull rod (3) from sliding.

6. The anti-reflux bladder irrigator according to claim 5, characterized in that: The fixing member is a spring (4), which is sleeved on the pull rod (3), one end of the spring (4) is fixedly connected to the first pull plate (2), and the other end of the spring (4) is fixedly connected to the second pull plate (5).

7. The anti-reflux bladder irrigator according to claim 5, characterized in that: The fixing member is a threaded column (25), which passes through the second pull plate (5) and is threadedly connected to the second pull plate (5), one end of the threaded column (25) is rotatably connected to the pull rod (3), and the other end of the threaded column (25) is fixedly connected to the first pull plate (2).

Images