Anti-backflow bladder irrigation device

Abstract

The utility model relates to the technical field of medical instruments, in particular to an anti-backflow bladder irrigation device. The utility model provides an anti-backflow bladder irrigation device. The anti-backflow bladder irrigation device comprises an irrigation pipeline, two infusion tubes, a mixer and a flow speed adjusting piece. The mixer is in an hourglass shape and is provided with an upper hopper body and a lower hopper body which are communicated with each other, the same ends of the two infusion tubes are respectively communicated with the upper hopper body, the other ends of the two infusion tubes are respectively used for being connected with infusion bags, and the lower hopper body is communicated with one end of the flushing pipeline; a liquid flowing channel is formed in the connecting position of the upper hopper body and the lower hopper body, and the flow speed adjusting piece is installed in the middle of the mixer. According to the anti-backflow bladder irrigation device, normal saline and sodium bicarbonate can be input at the same time, two sets of infusion apparatuses are not needed, and cost is saved.

Description

Technical Field

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

[0002] Bladder irrigation is a method of injecting a solution into the bladder using a catheter and then draining the injected liquid out using the siphon principle. Bladder irrigation is a common basic nursing technique in urology. It aims to dilute the blood that leaks out of the bladder through flushing with a large amount of normal saline to prevent blood from clotting and blocking the urethra. It is also an important treatment method before and after surgery for bladder, prostate, and urethral diseases.

[0003] Two kinds of flushing fluids are often used during bladder irrigation, namely physiological saline and sodium bicarbonate. Currently, the two kinds of flushing fluids are placed in different flushing bags during flushing, and two sets of infusion sets are required for the two flushing fluids. The use of two sets of infusion equipment is costly, and the flushing equipment has many pipes, which makes it messy when used. Utility Model Content

[0004] (I) The problem to be solved by the utility model is that currently, the two flushing liquids are placed in different flushing bags respectively during flushing, and two sets of infusion sets are required for the two flushing liquids. The use of two sets of infusion equipment is costly, and the flushing equipment has many pipes, which makes it messy when used.

[0005] (II) Technical solution

[0006] A backflow prevention bladder flushing device comprises a flushing pipeline, two infusion tubes, a mixer and a flow rate adjusting component; the mixer is in the shape of an hourglass, and has an upper bucket body and a lower bucket body that are connected to each other, the same end of the two infusion tubes is respectively connected to the upper bucket body, the other ends of the two infusion tubes are respectively used to connect to infusion bags, and the lower bucket body is connected to one end of the flushing pipeline; the connection between the upper bucket body and the lower bucket body forms a liquid flow channel, and the flow rate adjusting component is installed in the middle of the mixer, and is used to change the cross-sectional area of ​​the liquid flow channel to adjust the flow rate of the medicinal solution passing through the liquid flow channel per unit time.

[0007] According to one embodiment of the utility model, the flow rate adjusting member includes an adjusting block and a screw, wherein the adjusting block is arranged on the outside of the mixer and wraps the connection between the upper bucket body and the lower bucket body; at least one threaded hole is opened on the adjusting block, the threaded hole is perpendicular to the axis of the mixer, and the screw is threadedly connected to the threaded hole.

[0008] According to an embodiment of the present utility model, the flow rate regulating member further comprises an elastic member, and the elastic member is arranged at one end of the screw rod facing the liquid flow channel.

[0009] According to an embodiment of the present invention, a rotating handle is installed at one end of the screw rod away from the elastic member.

[0010] According to one embodiment of the utility model, it includes a flow rate regulating mechanism, a flow meter, a red blood cell concentration detection module and a controller; from the liquid inlet to the liquid outlet of the flushing pipeline, the flow rate regulating mechanism, the flow meter and the red blood cell concentration detection module are sequentially installed on the flushing pipeline;

[0011] The red blood cell concentration detection module is used to detect the red blood cell concentration of the discharge fluid; the flow meter is used to detect the flow rate of the liquid medicine in the flushing pipeline; the flow rate regulating mechanism is used to regulate the flow rate of the liquid medicine in the flushing pipeline according to the instruction;

[0012] The flow rate regulating mechanism includes a T-block, a sphere and a micro-electric push rod. The T-block is respectively provided with an extrusion cavity and a through hole for the flushing pipeline to pass through. The axis of the extrusion cavity is perpendicular to the axis of the through hole, and the extrusion cavity and the through hole are communicated with each other. The sphere is arranged in the extrusion cavity, the micro-electric push rod is installed in the extrusion cavity, and one end of the micro-electric push rod is fixed on the sphere for driving the sphere to approach or move away from the through hole. The micro-electric push rod, the flow meter and the red blood cell concentration detection module are respectively connected to the controller signal.

[0013] According to one embodiment of the utility model, the flushing pipeline includes an infusion main pipe, a tee pipe, a drainage tube and a urinary catheter; the liquid inlet of the infusion main pipe is connected to the lower bucket body, the liquid outlet of the infusion main pipe is connected to the first pipe opening of the tee pipe, and the end of the infusion main pipe close to the tee pipe is equipped with a first switch for controlling its on and off, one end of the drainage tube is connected to the second pipe opening of the tee pipe, and the end of the drainage tube close to the tee pipe is equipped with a second switch for controlling its on and off, and one end of the urinary catheter is connected to the third pipe opening of the tee pipe.

[0014] According to an embodiment of the present utility model, a display screen and a key module are installed on the controller, and the display screen and the key module are electrically connected to the controller respectively.

[0015] According to an embodiment of the utility model, at least one drip pot is installed on each of the two infusion tubes, and a plug is installed at one end of each infusion tube away from the mixer, and the plug is used to be inserted into an infusion bag.

[0016] According to an embodiment of the present utility model, the red blood cell concentration detection module is installed on the drainage tube.

[0017] According to an embodiment of the utility model, at least one pressure sensor is installed on a side of the sphere close to the through hole, and the pressure sensor is signal-connected to the controller.

[0018] Beneficial effects of the utility model:

[0019] Compared with the method of using two sets of infusion sets to flush the patient's bladder with normal saline and sodium bicarbonate respectively, the bladder flushing device has at least the following advantages:

[0020] First, physiological saline and sodium bicarbonate can be infused at the same time, without the need for two sets of infusion sets, thus saving costs. Second, there are fewer pipes, which is neater. Third, the mixer can fully mix the physiological saline and sodium bicarbonate, thus improving the flushing effect. Fourth, the flow rate adjustment member can adjust the flow rate of the mixed liquid out of the upper bucket, thereby controlling the mixing efficiency of the physiological saline and sodium bicarbonate in the upper bucket to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A front view provided for an embodiment of the utility model;

[0023] Figure 2 A front view of an embodiment of the utility model after removing the first infusion bag and the second infusion bag;

[0024] Figure 3 A schematic diagram of the connection between the first infusion tube, the second infusion tube, the mixer and the flow rate regulating member provided in an embodiment of the utility model;

[0025] Figure 4 A cross-sectional view of a mixer and a flow rate adjusting member provided in an embodiment of the utility model

[0026] Figure 5 A cross-sectional view of a flow rate regulating mechanism provided in an embodiment of the utility model;

[0027] Figure 6 A control logic diagram provided for an embodiment of the utility model.

[0028] Icons: 1. First infusion bag; 2. Second infusion bag; 3. First infusion tube; 4. Second infusion tube; 5. Mixer; 501. Upper bucket; 502. Lower bucket; 6. Flow rate adjustment member; 601. Adjustment block; 602. Screw; 603. Spring; 604. Turning handle; 7. Infusion main pipe; 8. Flow rate adjustment mechanism; 801. T-block; 802. Through hole; 803. Extrusion cavity; 804. Ball; 805. Micro electric push rod; 806. Pressure sensor; 9. Flow meter; 10. Controller; 11. Three-way pipe; 12. Drainage tube; 13. Urine catheter; 14. Collection bag; 17. Plug; 18. Drip pot; 20. Red blood cell concentration detection module. DETAILED DESCRIPTION

[0029] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0030] like Figure 1-Figure 6 As shown, an embodiment of the utility model provides an anti-backflow bladder flushing device, including a flushing pipeline, two infusion tubes, a mixer 5 and a flow rate regulating member 6; the mixer 5 is in the shape of an hourglass, and has an upper bucket 501 and a lower bucket 502 that are connected to each other, the same end of the two infusion tubes is respectively connected to the upper bucket 501, the other ends of the two infusion tubes are respectively used to connect to infusion bags, and the lower bucket 502 is connected to one end of the flushing pipeline; a liquid flow channel is formed at the connection between the upper bucket 501 and the lower bucket 502, and the flow rate regulating member 6 is installed in the middle of the mixer 5, and is used to change the cross-sectional area of ​​the liquid flow channel to adjust the flow rate of the liquid medicine passing through the liquid flow channel per unit time.

[0031] In this embodiment, when using normal saline and sodium bicarbonate to flush the patient's bladder, first, the two infusion tubes are connected to two infusion bags containing normal saline and sodium bicarbonate respectively, and the normal saline and sodium bicarbonate flow into the upper bucket 501 of the mixer 5 along the two infusion tubes respectively. Since the upper bucket 501 is a hollow inverted cone structure, that is, the inner diameter of the upper bucket 501 becomes smaller as it goes down, the flow rate of the liquid channel at the connection between the upper bucket 501 and the lower bucket 502 is slower, so the normal saline droplets and the sodium bicarbonate droplets will gather and mix in the upper bucket 501. In addition, the flow rate adjusting member 6 can be used to change the cross-sectional area of ​​the liquid channel to adjust the flow rate of the liquid through the liquid channel per unit time, so as to ensure that the normal saline and sodium bicarbonate can be fully mixed in the upper bucket 501 and the lower bucket 502, and the mixed flushing liquid flows out from the outlet of the lower bucket 502 into the flushing pipeline.

[0032] It can be seen that compared with the method of using two sets of infusion sets to use normal saline and sodium bicarbonate to flush the patient's bladder, the bladder flushing device has at least the following advantages:

[0033] First, physiological saline and sodium bicarbonate can be infused at the same time, without the need for two sets of infusion sets, thus saving costs. Second, there are fewer pipelines, which is neater. Third, the mixer 5 provided can fully mix the physiological saline and sodium bicarbonate, thus improving the flushing effect. Fourth, the flow rate regulating member 6 provided can regulate the flow rate of the mixed liquid flowing out of the upper bucket 501, thereby being able to control the mixing efficiency of the physiological saline and sodium bicarbonate in the upper bucket 501 to a certain extent.

[0034] In this embodiment, if Figure 4 As shown, the mixer 5 is hourglass-shaped, that is, the smaller the diameter of the mixer 5 is near the connection between the upper bucket 501 and the lower bucket 502, the lower bucket 502 mainly collects the mixed solution of physiological saline and sodium bicarbonate, and the mixed solution flows out of the liquid flow channel and then collects in the lower bucket 502. The mixer 5 in this embodiment is made of plastic, so that the flow rate adjustment member 6 can squeeze the middle part of the mixer 5 to achieve the effect of changing the cross-sectional area of ​​the liquid flow channel.

[0035] In this embodiment, the flow rate adjustment member 6 includes an adjustment block 601, a screw 602 and an elastic member, wherein the adjustment block 601 is adapted to the shape of the mixer 5, is arranged outside the mixer 5 and wraps the connection between the upper bucket 501 and the lower bucket 502. At least one threaded hole is opened in the radial direction of the adjustment block 601, the threaded hole is perpendicular to the axis of the mixer 5, the screw 602 is screwed into the threaded hole, and the elastic member is fixedly installed at one end of the screw 602 close to the liquid flow channel.

[0036] When reducing the outflow speed of the mixed liquid in the upper bucket 501, the screw 602 can be rotated, and the screw 602 drives the elastic member to move inward to squeeze the connection between the upper bucket 501 and the lower bucket 502, so that the connection is deformed, which is equivalent to reducing the cross-sectional area of ​​the liquid flow channel, thereby reducing the flow rate to give the physiological saline and sodium bicarbonate time to be fully mixed in the upper bucket 501.

[0037] It should be clear that the inner top wall of the adjustment block 601 is fixedly connected to the outer side surface of the upper bucket body 501 , while the connection between the upper bucket body 501 and the lower bucket body 502 and the side surface of the lower bucket body 502 are not connected to the inner wall of the adjustment block 601 .

[0038] Alternatively, the inner top wall and the inner bottom wall of the adjustment block 601 are fixedly connected to the outer side surfaces of the upper bucket body 501 and the lower bucket body 502 respectively, but the connection between the upper bucket body 501 and the lower bucket body 502 is not connected to the inner wall of the adjustment block 601.

[0039] It should be noted that the elastic member mainly plays a buffering role to prevent the screw 602 from damaging the mixer 5. The elastic member can be a rubber block or a spring 603, and no specific limitation is made here.

[0040] Optionally, in order to facilitate the rotation of the screw rod 602 , a rotating handle 604 is installed at the end of the screw rod 602 .

[0041] In this embodiment, for the convenience of description, the two infusion tubes are named as the first infusion tube 3 and the second infusion tube 4. Two circular holes are provided on the top surface of the upper bucket 501, and the same ends of the first infusion tube 3 and the second infusion tube 4 are sealed and connected to the two circular holes respectively. Furthermore, a liquid outlet is provided on the bottom surface of the lower bucket 502, and the liquid outlet is connected to the flushing pipeline.

[0042] For example, Figure 3 As shown, a drip pot 18 is installed on the first infusion tube 3 and the second infusion tube 4 respectively, and a plug 17 is installed on the end of the first infusion tube 3 and the second infusion tube 4 away from the mixer 5. The plug 17 is in the shape of a sharp needle and is used to be inserted into the infusion bag from the rubber stopper of the infusion bag.

[0043] The present embodiment further comprises two infusion bags, namely a first infusion bag 1 and a second infusion bag 2, wherein the first infusion bag 1 is used to contain physiological saline, and the second infusion bag 2 is used to contain sodium bicarbonate.

[0044] The present embodiment further comprises a flow rate regulating mechanism 8, a flow meter 9, a red blood cell concentration detection module 20 and a controller 10; the flow rate regulating mechanism 8, the flow meter 9 and the red blood cell concentration detection module 20 are sequentially installed on the flushing pipeline from the liquid inlet to the liquid outlet thereof; the red blood cell concentration detection module 20 is used to detect the red blood cell concentration of the discharged liquid; the flow meter 9 is used to detect the flow rate of the liquid medicine in the flushing pipeline; the flow rate regulating mechanism 8 is used to adjust the flow rate of the liquid medicine in the flushing pipeline according to the instruction; the flow rate regulating mechanism 8 is as follows Figure 5 As shown, it includes a T-block 801, a sphere 804 and a micro-electric push rod 805. The T-block 801 is respectively provided with an extrusion cavity 803 and a through hole 802 for the flushing pipeline to pass through. The axis of the extrusion cavity 803 is perpendicular to the axis of the through hole 802, and the extrusion cavity 803 and the through hole 802 are connected; the sphere 804 is arranged in the extrusion cavity 803, the micro-electric push rod 805 is installed in the extrusion cavity 803, and one end of the micro-electric push rod 805 is fixed on the sphere 804 to drive the sphere 804 to approach or move away from the through hole 802; the micro-electric push rod 805, the flow meter 9 and the red blood cell concentration detection module 20 are respectively connected to the controller 10 signal.

[0045] It should be noted that after bladder surgery, bladder irrigation is required. The flow rate of bladder irrigation is determined by the color (red blood cell concentration) of the effluent (a mixture of urine, blood and irrigating fluid), that is, medical staff should often observe the color of the effluent and adjust the flow rate of the irrigating fluid accordingly. Because the irrigating volume is large and the irrigating time is long (generally about 72 hours), medical staff need to often observe the color of the effluent in order to adjust the irrigating flow rate at any time. If the effluent is light, not slowing down the irrigating flow rate in time will not only waste the irrigating fluid but also cause complications. If the effluent color is dark, not increasing the irrigating flow rate in time will cause blood coagulation and block the pipeline, increase complications, etc. At present, the commonly used bladder irrigation method in clinical practice is to use a disposable infusion set or blood transfusion set for irrigating. Medical staff need to often observe the color of the effluent in order to adjust the irrigating flow rate at any time, which is troublesome, time-consuming and laborious.

[0046] In this embodiment, the red blood cell concentration detection module 20 detects the red blood cell concentration of the discharge fluid and sends a detection signal to the controller 10. When the red blood cell concentration in the discharge fluid exceeds the preset concentration range (the discharge fluid is dark in color), it indicates that the current flow rate of the flushing fluid is too slow, and the controller 10 controls the micro electric push rod 805 to contract to pull the ball 804 to move outward, so that the squeezing force of the ball 804 on the flushing pipeline is reduced, thereby speeding up the flow rate of the flushing fluid. When the red blood cell concentration in the discharge fluid is lower than the preset concentration range (the discharge fluid is light in color), it indicates that the current flow rate of the flushing fluid is too fast, and the controller 10 controls the micro electric push rod 805 to extend to increase the squeezing force of the ball 804 on the flushing pipeline, thereby reducing the flow rate of the flushing fluid.

[0047] Therefore, in this embodiment, the flow rate of the flushing fluid can be automatically adjusted according to the red blood cell concentration of the discharged fluid, without the need for manual adjustment by medical staff, thus saving time and effort, so that the flow rate of the flushing fluid is guaranteed to be within a reasonable range, and the patient receiving treatment can be more comfortable during the flushing process on the basis of achieving the therapeutic effect.

[0048] It should be noted that the micro electric push rod 805 in this embodiment uses a Temuyou pen-type electric push rod, which is about 5 cm in size and has a thrust between 5-20N.

[0049] As a preferred embodiment, a mounting hole is opened in the direction of the ball 804 toward the through hole 802, and a pressure sensor 806 is installed in the mounting hole. The pressure sensor 806 is connected to the control module of the controller 10 by signal. The pressure value measured by the pressure sensor 806 is used to quantify the degree of squeezing of the flushing pipeline by the ball 804 so that the control module can monitor it.

[0050] In this embodiment, the flushing pipeline includes an infusion main pipe 7, a three-way pipe 11, a drainage pipe 12 and a urinary catheter 13, wherein the liquid inlet of the infusion main pipe 7 is connected to the lower bucket 502, the liquid outlet of the infusion main pipe 7 is connected to the first pipe opening of the three-way pipe 11, and the end of the infusion main pipe 7 close to the three-way pipe 11 is equipped with a first switch for controlling its on and off, one end of the drainage pipe 12 is connected to the second pipe opening of the three-way pipe 11, and the end of the drainage pipe 12 close to the three-way pipe 11 is equipped with a second switch for controlling its on and off, one end of the urinary catheter 13 is connected to the third pipe opening of the three-way pipe 11, and the red blood cell concentration detection module 20 is installed on the drainage pipe 12. It should be noted that the urinary catheter 13 is used to be inserted into the urethra and bladder to deliver flushing fluid to the bladder. The drainage pipe 12 is used to discharge the mixed liquid.

[0051] Specifically, during flushing, the first switch is turned on and the second switch is turned off, and the flushing liquid in the infusion main tube 7 flows through the three-way tube 11 and the urinary catheter 13, and finally enters the patient's bladder. During drainage, in order to prevent the mixed liquid from flowing back into the infusion main tube 7, the first switch is turned off and the second switch is turned on, and the discharged mixed liquid flows through the three-way tube 11 and the drainage tube 12, and finally is discharged.

[0052] During the drainage, the red blood cell concentration detection module 20 on the drainage tube 12 detects the red blood cell concentration of the drainage fluid and sends the detection signal to the control module of the controller 10. When the red blood cell concentration in the drainage fluid exceeds the preset concentration range, it indicates that the current flow rate of the flushing fluid is too slow, and the controller 10 controls the micro electric push rod 805 to contract to pull the ball 804 to move outward, so that the squeezing force of the ball 804 on the infusion main tube 7 is reduced, and the pressure value detected by the pressure sensor 806 is reduced, thereby accelerating the flow rate of the flushing fluid until the red blood cell concentration in the drainage fluid reaches the preset concentration range. When the red blood cell concentration in the drainage fluid is lower than the preset concentration range, it indicates that the current flow rate of the flushing fluid is too fast, and the controller 10 controls the micro electric push rod 805 to extend to increase the squeezing force of the ball 804 on the infusion main tube 7, and the pressure value detected by the pressure sensor 806 is increased, thereby reducing the flow rate of the flushing fluid until the red blood cell concentration in the drainage fluid reaches the preset concentration range.

[0053] It should be noted that during drainage, the mixed liquid discharged from the urine catheter 13 may flow back into the infusion main tube 7 . Therefore, in order to prevent the backflow, the first switch should be closed and the second switch should be opened during drainage so that the discharged liquid will not flow back into the infusion main tube 7 .

[0054] Optionally, a collecting bag 14 is connected to the end of the drainage tube 12, and the collecting bag 14 is used to collect the mixed liquid.

[0055] Preferably, Figure 2As shown, the controller 10 and the micro electric push rod 805 are connected by wires, and the controller 10 and the flow meter 9 are connected by wires. A key module and a display screen are provided on the controller 10, and the display screen and the key module are electrically connected to the controller 10 respectively.

[0056] In addition, the controller 10 includes a shell, a control main board, a charging interface and a power module. The control main board and the power module are installed inside the shell, and the button module and the display screen are installed on the shell. The power module supplies power to electrical components such as the display screen, the micro electric push rod 805 and the control main board.

[0057] It should be noted that the flow meter 9 is powered by a lithium battery pack, and can achieve measurement without external power supply on site.

[0058] Preferably, the red blood cell concentration detection module 20 includes a red blood cell concentration detection sensor, and specifically a capacitive red blood cell concentration detection sensor or a photoelectric red blood cell concentration detection sensor can be selected.

[0059] In the description of the present invention, it should be noted that the terms "upper" and "lower" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0060] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-backflow bladder irrigation device, characterized in that: The invention comprises a flushing pipeline, two infusion tubes, a mixer (5) and a flow rate regulating member (6); the mixer (5) is in the shape of an hourglass and comprises an upper bucket (501) and a lower bucket (502) which are connected to each other; the same end of the two infusion tubes is respectively connected to the upper bucket (501); the other ends of the two infusion tubes are respectively used to connect to infusion bags; the lower bucket (502) is connected to one end of the flushing pipeline; the connection between the upper bucket (501) and the lower bucket (502) forms a liquid flow channel; the flow rate regulating member (6) is installed in the middle of the mixer (5) and is used to change the cross-sectional area of ​​the liquid flow channel so as to adjust the flow rate of the liquid medicine passing through the liquid flow channel per unit time.

2. The anti-backflow bladder irrigation device according to claim 1, characterized in that: The flow rate adjusting member (6) comprises an adjusting block (601) and a screw (602); the adjusting block (601) is arranged outside the mixer (5) and wraps around the connection between the upper bucket body (501) and the lower bucket body (502); at least one threaded hole is formed on the adjusting block (601), the threaded hole is perpendicular to the axis of the mixer (5), and the screw (602) is screwed into the threaded hole.

3. The anti-backflow bladder irrigation device according to claim 2, characterized in that: The flow rate regulating member (6) further comprises an elastic member, wherein the elastic member is arranged at one end of the screw rod (602) facing the liquid flow channel.

4. The anti-backflow bladder irrigation device according to claim 3, characterized in that: A rotating handle (604) is mounted on one end of the screw rod (602) away from the elastic member.

5. The anti-backflow bladder irrigation device according to claim 3, characterized in that: include A flow rate regulating mechanism (8), a flow meter (9), a red blood cell concentration detection module (20) and a controller (10); the flow rate regulating mechanism (8), the flow meter (9) and the red blood cell concentration detection module (20) are sequentially installed on the flushing pipeline from the liquid inlet to the liquid outlet of the flushing pipeline; The red blood cell concentration detection module (20) is used to detect the red blood cell concentration of the discharge fluid; the flow meter (9) is used to detect the flow rate of the medicinal liquid in the flushing pipeline; the flow rate regulating mechanism (8) is used to regulate the flow rate of the medicinal liquid in the flushing pipeline according to instructions; The flow rate regulating mechanism (8) comprises a T-shaped block (801), a sphere (804) and a micro-electric push rod (805); the T-shaped block (801) is provided with an extrusion chamber (803) and a through hole (802) for the flushing pipeline to pass through; the axis of the extrusion chamber (803) is perpendicular to the axis of the through hole (802), and the extrusion chamber (803) and the through hole (802) are connected; the sphere (804) is arranged in the extrusion chamber (803), the micro-electric push rod (805) is installed in the extrusion chamber (803), and one end of the micro-electric push rod (805) is fixed on the sphere (804) for driving the sphere (804) to approach or move away from the through hole (802); the micro-electric push rod (805), the flow meter (9) and the red blood cell concentration detection module (20) are respectively connected to the controller (10) by signal.

6. The anti-backflow bladder irrigation device according to claim 5, characterized in that: The flushing pipeline comprises an infusion main pipe (7), a three-way pipe (11), a drainage pipe (12) and a urinary catheter (13); the liquid inlet of the infusion main pipe (7) is connected to the lower bucket (502), the liquid outlet of the infusion main pipe (7) is connected to the first pipe opening of the three-way pipe (11), and a first switch for controlling the on-off of the infusion main pipe (7) is installed at one end of the infusion main pipe (7) close to the three-way pipe (11), one end of the drainage pipe (12) is connected to the second pipe opening of the three-way pipe (11), and a second switch for controlling the on-off of the drainage pipe (12) is installed at one end of the drainage pipe (12) close to the three-way pipe (11), and one end of the urinary catheter (13) is connected to the third pipe opening of the three-way pipe (11).

7. The anti-backflow bladder irrigation device according to claim 5, characterized in that: A display screen and a key module are mounted on the controller (10), and the display screen and the key module are electrically connected to the controller (10) respectively.

8. The anti-backflow bladder irrigation device according to claim 1, characterized in that: At least one drip pot (18) is installed on each of the two infusion tubes, and a plug (17) is installed on one end of the infusion tube away from the mixer (5), and the plug (17) is used to be inserted into an infusion bag.

9. The anti-backflow bladder irrigation device according to claim 6, characterized in that: The red blood cell concentration detection module (20) is installed on the drainage tube (12).

10. The anti-backflow bladder irrigation device according to claim 5, characterized in that: At least one pressure sensor (806) is installed on a side of the sphere (804) close to the through hole (802), and the pressure sensor (806) is signal-connected to the controller (10).

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