Bladder blood clot flushing device

Abstract

The invention discloses a bladder blood clot flushing device. The bladder blood clot flushing device is operated in the following steps when used: (S1) normal saline is conveyed into a syringe of an injector through a normal saline conveying mechanism; (S2) a pushing mechanism of the electric injection pump pushes a push-pull rod of the injector, and normal saline is conveyed into the bladder for flushing through the catheter; (S3) a pushing mechanism of the electric injection pump pulls a push-pull rod of the injector to reset, and waste liquid (the mixture of urine, normal saline and blood clots) in the bladder is pumped into an injection cylinder of the injector; (S4) a driving structure of the electric injection pump drives a rotating end cover to rotate, so that a connecting pipe is disconnected from an injection hole, a pushing mechanism of the electric injection pump pushes a push-pull rod of the injector, and waste liquid in the injection cylinder is conveyed into a waste liquid recycling mechanism through a liquid outlet connector; through the steps, full-automatic multi-time flushing can be achieved, manpower is saved, the flushing force is controlled and adjusted in real time through the electric injection pump, and the bladder is prevented from being damaged by too large flushing force.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to a bladder blood clot flushing device. Background Art

[0002] Bladder blood clots can be treated by means such as blood clot removal under cystoscope, bladder irrigation, and drug treatment, and corresponding treatment needs to be carried out according to the cause. Among them, bladder irrigation refers to using normal saline or drugs to remove the blood clots in the bladder by means of bladder irrigation, which can play a role in preventing infection.

[0003] When performing bladder irrigation, it is divided into the following steps: (1) First, insert a catheter; (2) Then, draw normal saline with a syringe; (3) Then connect the syringe to the tail end of the catheter and inject the normal saline into the bladder to disperse the blood clots; (4) The syringe draws out the urine and blood clots in the bladder. And bladder irrigation needs to be performed intermittently and multiple times, resulting in a rather cumbersome and inefficient operation. Summary of the Invention

[0004] The purpose of the present invention is to provide a bladder blood clot flushing device, which has the function of facilitating bladder irrigation.

[0005] The above technical object of the present invention is achieved by the following technical solutions: A bladder blood clot flushing device, comprising a urinary catheter, a syringe, an electric injection pump, a physiological saline delivery mechanism, and a waste liquid recovery mechanism; The syringe includes a syringe barrel with an injection hole at the front end, a piston telescopically arranged in the syringe barrel, a push rod arranged on the piston, a rotatable end cap rotatably connected to the end of the syringe barrel and having a connecting pipe for connecting the urinary catheter, a sealing assembly arranged at the connection between the rotatable end cap and the syringe barrel, a liquid inlet joint arranged on the circumferential side of the syringe barrel away from the rotatable end cap and internally provided with a one-way valve, and a liquid outlet joint arranged on the circumferential side of the syringe barrel near the rotatable end cap and internally provided with a one-way valve. During the relative rotation of the rotatable end cap with respect to the syringe barrel, the connecting pipe can be switched between a state of being connected to and disconnected from the injection hole; The electric injection pump includes an injection pump main body, a fixing mechanism arranged on the injection pump main body and used for fixing the syringe barrel, a propulsion mechanism arranged on the injection pump main body and used to drive the push rod to expand and contract, and a driving structure arranged between the injection pump body and the rotatable end cap and used to drive the rotatable joint to rotate; The physiological saline delivery mechanism is connected to the liquid inlet joint, and the waste liquid recovery mechanism is connected to the liquid outlet joint; When the piston is at the end away from the syringe barrel, the physiological saline delivery mechanism opens the one-way valve of the liquid inlet joint through pressure during the injection of physiological saline; When the connecting pipe is connected to the injection hole, the physiological saline in the syringe barrel is discharged from the connecting pipe as the push rod is advanced, and the waste liquid generated in the bladder is drawn into the syringe barrel as the push rod is reset; When the connecting pipe is disconnected from the injection hole, the waste liquid in the syringe barrel opens the one-way valve in the liquid outlet joint through pressure as the push rod is advanced, and the waste liquid is discharged from the liquid outlet joint.

[0006] By adopting the above technical solutions, the following steps are performed during bladder flushing: (S1) The physiological saline is delivered into the syringe barrel of the syringe through the physiological saline delivery mechanism; (S2) The propulsion mechanism of the electric injection pump advances the push rod of the syringe, and the physiological saline is delivered into the bladder through the urinary catheter for flushing; (S3) The propulsion mechanism of the electric injection pump pulls the push rod of the syringe to reset, and the waste liquid (urine, physiological saline, blood clot mixture) in the bladder is drawn into the syringe barrel of the syringe; (S4) The driving structure of the electric injection pump drives the rotatable end cap to rotate, so that the connecting pipe is disconnected from the injection hole, and the propulsion mechanism of the electric injection pump advances the push rod of the syringe, and the waste liquid in the syringe barrel is delivered into the waste liquid recovery mechanism through the liquid outlet joint; Through the above steps, automatic multiple flushes can be realized, saving manpower, and the flushing intensity can be controlled and adjusted in real time by the electric injection pump to prevent excessive flushing intensity from damaging the bladder.

[0007] A further setting of the present invention is that an annular ring is provided at one end of the rotating end cap close to the syringe barrel. An external thread is provided on the circumferential side of the syringe barrel close to the rotating end cap. A threaded connection ring is provided on the rotating end cap and is threadedly connected to the external thread to prevent the annular ring from falling off. Two first annular grooves are provided on the rotating end cap. Two second annular grooves corresponding to the first annular grooves are provided on the end face of the syringe barrel. The sealing assembly includes two sealing rings respectively embedded between the first annular groove and the second annular groove. The diameters of the two sealing rings are different. An arc-shaped notch is provided on the threaded connection ring. A limiting block is provided on the annular ring and moves on the arc-shaped notch during the rotation of the rotating end cap. When the limiting block is located at one end of the arc-shaped notch, the connecting pipe is communicated with the injection hole. When the limiting block is located at the other end of the arc-shaped notch, the connecting pipe is disconnected from the injection hole.

[0008] By adopting the above technical solution, the rotating end cap is installed on the syringe barrel through the threaded connection ring, and the two sealing rings between the rotating end cap and the syringe barrel achieve double sealing to avoid liquid leakage. At the same time, the arc-shaped notch provided on the threaded connection ring and the setting of the limiting block on the annular ring of the rotating end cap can limit the rotation angle of the rotating end cap.

[0009] A further setting of the present invention is that a square limiting portion is provided at the tail end of the syringe barrel. A limiting groove for one side of the square limiting portion to be embedded is provided on the injection pump main body to prevent the syringe barrel from rotating. A circular connecting portion is provided at the tail end of the push rod. A connecting groove for one side of the circular connecting portion to be embedded is provided on the propulsion mechanism. The driving structure includes a driving gear ring provided on the circumferential side of the rotating end cap, a driving rack that is lifted and lowered on the injection pump main body and meshes with the driving gear ring, and an electric push rod provided on the injection pump main body and connected to one end of the driving rack.

[0010] By adopting the above technical solution, the electric push rod can be used to drive the driving rack to lift and lower. Since the driving gear ring on the circumferential side of the rotating end cap meshes with the driving rack, the rotating end cap can be driven to rotate.

[0011] A further setting of the present invention is that the physiological saline delivery mechanism includes a heat preservation box, a storage tank provided in the heat preservation box for storing physiological saline, an electric heating component provided in the heat preservation box for heating the periphery of the storage tank, a control panel provided on the front side of the heat preservation box, a liquid outlet pipe communicating with the storage tank, a temperature sensor provided on the liquid outlet pipe, a water pump provided on the liquid outlet pipe and located in the heat preservation box, and a heat preservation hose connecting the water pump and the liquid inlet joint.

[0012] By adopting the above technical solution, through the settings of the electric heating component and the temperature sensor, the temperature of the normal saline can be adjusted and controlled. Meanwhile, the setting of the heat preservation hose can avoid excessive temperature change of the normal saline during transportation.

[0013] The further setting of the present invention is as follows: The waste liquid recovery mechanism includes a waste liquid recovery box, a liquid outlet hose arranged between the waste liquid recovery box and the liquid outlet joint, and a negative pressure joint arranged on the side of the waste liquid recovery box to evacuate the air in the waste liquid recovery box to form a negative pressure; the negative pressure joint is signal-connected to the control circuit board of the electric injection pump.

[0014] By adopting the above technical solution, during the process of the electric injection pump pushing the push rod of the syringe to discharge the waste liquid, the one-way valve on the liquid outlet joint opens, so that the waste liquid flows into the waste liquid recovery box through the liquid outlet hose for collection. Meanwhile, when the negative pressure joint on the waste liquid recovery box is activated, the smoothness of the waste liquid flowing out of the syringe barrel can be accelerated.

[0015] The further setting of the present invention is as follows: Both sides of the end of the urinary catheter are provided with urine drainage holes. The end of the urinary catheter is provided with an airbag that expands after being filled with water. The end of the urinary catheter is provided with a "cross"-shaped auxiliary hole. The end of the urinary catheter is divided into four petals by the auxiliary hole. A connecting belt part that does not interfere with the urine drainage holes is arranged between each petal of the airbag and the end of the urinary catheter. When the airbag expands after being filled with water, the connecting belt part pulls the corresponding petal of the end of the urinary catheter outwards.

[0016] By adopting the above technical solution, since the size of the urine drainage holes of the urinary catheter is relatively small, which is not conducive to the discharge of some blood clots. At this time, by adding a "cross"-shaped auxiliary hole at the end of the urinary catheter, when the airbag expands after being filled with water, the connecting belt pulls the corresponding petal of the urinary end outwards, which is conducive to extracting the blood clots at this time.

[0017] A further setting of the present invention is as follows: The bladder blood clot flushing includes the following steps: (S1) Install the syringe on the electric injection pump, and through the propulsion mechanism of the electric injection pump, the push rod of the syringe is in a pulled-out state; (S2) Connect the heat preservation hose of the physiological saline delivery mechanism to the liquid inlet joint of the injection pump. The electric heating component of the physiological saline delivery mechanism heats the physiological saline in the storage tank, and the temperature sensor on the liquid outlet pipe detects the temperature of the physiological saline and feeds back the signal to the control panel. The control panel controls the power of the electric heating component to adjust the temperature of the physiological saline to the required temperature; (S3) Connect the liquid outlet hose of the waste liquid recovery mechanism to the liquid outlet joint of the injection pump; (S4) Place the urinary catheter through the urethra at the patient's bladder. The balloon of the urinary catheter expands and fixes after being filled with water. During the water filling process, the connecting belt pulls one corresponding flap at the end of the urine drainage end outwards, and connect the connecting tube of the syringe and the urinary catheter; (S5) The water pump of the physiological saline delivery mechanism injects the physiological saline into the syringe barrel through the liquid inlet joint. The propulsion mechanism of the electric injection pump advances the push rod to inject the physiological saline into the bladder through the urinary catheter for flushing; (S6) The propulsion mechanism of the electric injection pump pulls back the push rod to draw the mixed waste liquid of the physiological saline, urine, and blood clots in the bladder into the syringe barrel; (S7) The driving structure of the electric injection pump drives the rotating end cover of the syringe to rotate, disconnecting the connecting tube and the injection hole, and connecting the negative pressure joint of the waste liquid recovery mechanism to an external negative pressure device. The propulsion mechanism of the electric injection pump advances the push rod to output the waste liquid in the syringe barrel through the liquid outlet joint into the waste liquid recovery box of the waste liquid recovery mechanism; (S8) The propulsion mechanism of the electric injection pump resets the push rod of the syringe, making the push rod in a pulled-out state; (S9) Repeat steps (S5) to (S8) multiple times to flush the bladder blood clots multiple times.

[0018] A further setting of the present invention is as follows: After performing an operation of transporting the waste liquid to the waste liquid recovery mechanism in step (S7), the driving mechanism of the electric injection pump drives the rotating end cover of the syringe to reset, and the propulsion mechanism of the electric injection pump will pull the push rod, which can realize pumping the waste liquid in the bladder again, and then discharging the waste liquid in the syringe barrel again through step (S7). Description of the Drawings

[0019] Figure 1 is a structural schematic diagram of the present invention;

[0020] Figure 2 is a structural schematic diagram of the syringe in the present invention;

[0021] Figure 3 is a structural schematic diagram of the syringe from another angle in the present invention;

[0022] Figure 4 is an exploded view of the partial structure of the syringe in the present invention;

[0023] Figure 5 It is an exploded view of a partial structure of the syringe from another angle in the present invention;

[0024] Figure 6 It is a schematic structural diagram of the combination of the syringe, the urinary catheter, and the electric injection pump in the present invention;

[0025] Figure 7 It is a schematic structural diagram of the physiological saline delivery mechanism in the present invention;

[0026] Figure 8 It is a schematic structural diagram of the waste liquid recovery mechanism in the present invention;

[0027] Figure 9 It is a schematic structural diagram of the urinary catheter in the present invention;

[0028] Figure 10 It is a schematic diagram of a partial structure at the end of the urinary catheter in the present invention.

[0029] Reference numerals: 1, urinary catheter; 11, urine drainage hole; 12, balloon; 13, auxiliary hole; 14, connecting belt part; 2, syringe; 21, syringe barrel; 211, injection hole; 212, second annular groove; 213, square limiting part; 22, piston; 23, push rod; 231, circular connecting part; 24, rotating end cap; 241, connecting pipe; 242, annular ring; 243, first annular groove; 244, limiting block; 25, sealing assembly; 251, sealing ring; 26, liquid inlet joint; 27, liquid outlet joint; 28, threaded connection ring; 281, arc-shaped notch; 3, electric injection pump; 31, injection pump body; 311, limiting groove; 32, fixing mechanism; 33, propulsion mechanism; 331, connecting groove; 34, driving structure; 341, driving gear ring; 342, driving rack; 343, electric push rod; 4, physiological saline delivery mechanism; 41, incubator; 42, storage tank; 43, electric heating component; 44, control panel; 45, liquid outlet pipeline; 46, temperature sensor; 47, water pump; 48, heat preservation hose; 5, waste liquid recovery mechanism; 51, waste liquid recovery box; 511, observation window; 52, liquid outlet hose; 53, negative pressure joint. Detailed implementation manners

[0030] The present invention will be further described in detail below with reference to the accompanying drawings.

[0031] Embodiment: A bladder blood clot irrigation device, as Figure 1 shown, includes a urinary catheter 1, a syringe 2, an electric injection pump 3, a physiological saline delivery mechanism 4, and a waste liquid recovery mechanism 5.

[0032] As Figures 1 to 5As shown, the syringe 2 includes a syringe barrel 21 with an injection hole 211 at the front end, a piston 22 telescopically arranged in the syringe barrel 21, a push rod 23 arranged on the piston 22, a rotary end cap 24 rotatably connected to the end of the syringe barrel 21 and having a connecting pipe 241 connected to the connecting catheter 1, a sealing assembly 25 arranged at the connection between the rotary end cap 24 and the syringe barrel 21, a liquid inlet connector 26 arranged on the circumferential side of the end of the syringe barrel 21 away from the rotary end cap 24 and internally provided with a one-way valve, and a liquid outlet connector 27 arranged on the circumferential side of the end of the syringe barrel 21 close to the rotary end cap 24 and internally provided with a one-way valve. During the rotation of the rotary end cap 24 relative to the syringe barrel 21, the connecting pipe 241 can be switched between a state of being connected to and disconnected from the injection hole 211.

[0033] As Figure 1 and Figure 6 shown, the electric injection pump 3 includes an injection pump main body 31, a fixing mechanism 32 arranged on the injection pump main body 31 and used to fix the syringe barrel 21, a propulsion mechanism 33 arranged on the injection pump main body 31 and used to drive the push rod 23 to telescopically move, and a driving structure 34 arranged between the injection pump body and the rotary end cap 24 and used to drive the rotary joint to rotate.

[0034] As Figures 1 to 6 shown, the physiological saline delivery mechanism 4 is connected to the liquid inlet connector 26, and the waste liquid recovery mechanism 5 is connected to the liquid outlet connector 27. When the piston 22 is at the end away from the syringe barrel 21, the physiological saline delivery mechanism 4 opens the one-way valve of the liquid inlet connector 26 by pressure during the injection of physiological saline; when the connecting pipe 241 is connected to the injection hole 211, the physiological saline in the syringe barrel 21 is discharged from the connecting pipe 241 as the push rod 23 advances, and the waste liquid generated in the bladder is drawn into the syringe barrel 21 as the push rod 23 resets; when the connecting pipe 241 is disconnected from the injection hole 211, the waste liquid in the syringe barrel 21 opens the one-way valve in the liquid outlet connector 27 by pressure as the push rod 23 advances, and the waste liquid is discharged from the liquid outlet connector 27.

[0035] As Figures 3 to 5As shown in the figure, an annular ring 242 is provided at one end of the rotating end cap 24 close to the syringe barrel 21. External threads are provided on the circumferential side of the syringe barrel 21 at the end close to the rotating end cap 24. A threaded connection ring 28 is provided on the rotating end cap 24, which is threadedly connected to the external threads and prevents the annular ring 242 from falling off. Two first annular grooves 243 are provided on the rotating end cap 24, and two second annular grooves 212 corresponding to the first annular grooves 243 are provided on the end face of the syringe barrel 21. The sealing assembly 25 includes two sealing rings 251 respectively embedded between the first annular groove 243 and the second annular groove 212, and the diameters of the two sealing rings 251 are different. An arc-shaped notch 281 is provided on the threaded connection ring 28, and a limiting block 244 that moves on the arc-shaped notch 281 during the rotation of the rotating end cap 24 is provided on the annular ring 242. When the limiting block 244 is located at one end of the arc-shaped notch 281, the connecting pipe 241 is communicated with the injection hole 211. When the limiting block 244 is located at the other end of the arc-shaped notch 281, the connecting pipe 241 is disconnected from the injection hole 211.

[0036] As Figure 2 and Figure 6 shown in the figure, a square limiting portion 213 is provided at the tail end of the syringe barrel 21, and a limiting groove 311 for one side of the square limiting portion 213 to be embedded is provided on the injection pump main body 31 to prevent the syringe barrel 21 from rotating. A circular connecting portion 231 is provided at the tail end of the push-pull rod 23, and a connecting groove 331 for one side of the circular connecting portion 231 to be embedded is provided on the propulsion mechanism 33. The driving structure 34 includes a driving gear ring 341 provided on the circumferential side of the rotating end cap 24, a driving rack 342 that is lifted and engaged with the driving gear ring 341 on the injection pump main body 31, and an electric push rod 343 provided on the injection pump main body 31 and connected to one end of the driving rack 342.

[0037] As Figure 1 , Figure 6 and Figure 7 shown in the figure, the physiological saline delivery mechanism 4 includes a heat preservation box 41, a storage tank 42 provided in the heat preservation box 41 for storing physiological saline, an electric heating component 43 provided in the heat preservation box 41 for heating the periphery of the storage tank 42, a control panel 44 provided on the front side of the heat preservation box 41, a liquid outlet pipe 45 communicating with the storage tank 42, a temperature sensor 46 provided on the liquid outlet pipe 45, a water pump 47 provided on the liquid outlet pipe 45 and located in the heat preservation box 41, and a heat preservation hose 48 connecting the water pump 47 and the liquid inlet joint 26. An annular interlayer for filling a heating medium is provided between the heat preservation box 41 and the storage tank 42, and the electric heating component 43 is a plurality of electric heating tubes provided in the annular interlayer.

[0038] As Figure 1 , Figure 6 and Figure 8As shown, the waste liquid recovery mechanism 5 includes a waste liquid recovery tank 51, a liquid outlet hose 52 disposed between the waste liquid recovery tank 51 and the liquid outlet joint 27, and a negative pressure joint 53 disposed on the side of the waste liquid recovery tank 51 and configured to evacuate the air in the waste liquid recovery tank 51 to form a negative pressure; the negative pressure joint 53 is in signal connection with the control circuit board of the electric injection pump 3. An observation window 511 for observing the liquid level height is provided on the waste liquid recovery tank 51.

[0039] As Figure 1 , Figure 9 and Figure 10 As shown, both sides of the end of the urinary catheter 1 are provided with urine drainage holes 11, an airbag 12 that expands after being filled with water is provided at the end of the urinary catheter 1, an auxiliary hole 13 in a "cross" shape is provided at the end of the urinary catheter 1, the end of the urinary catheter 1 is divided into four petals by the auxiliary hole 13, and a connecting strip portion 14 that does not interfere with the urine drainage holes 11 is provided between the airbag 12 and each petal of the end of the urinary catheter 1. When the airbag 12 expands after being filled with water, the connecting strip portion 14 pulls the corresponding petal of the end of the urinary catheter 1 outwards.

[0040] The bladder blood clot irrigation includes the following steps: (S1) Install the syringe 2 on the electric injection pump 3, and through the propulsion mechanism 33 of the electric injection pump 3, make the push rod 23 of the syringe 2 in a pulled-out state; (S2) Connect the heat preservation hose 48 of the physiological saline delivery mechanism 4 to the liquid inlet joint 26 of the injection pump. The electric heating component 43 of the physiological saline delivery mechanism 4 heats the physiological saline in the storage tank 42, and the temperature sensor 46 on the liquid outlet pipe 45 detects the temperature of the physiological saline and feeds back the signal to the control panel 44. The control panel 44 controls the power of the electric heating component 43 to adjust the temperature of the physiological saline to the required temperature; (S3) Connect the liquid outlet hose 52 of the waste liquid recovery mechanism 5 to the liquid outlet joint 27 of the injection pump; (S4) Place the urinary catheter 1 into the patient's bladder through the urethra. After the balloon 12 of the urinary catheter 1 is inflated by injecting water, the connecting belt pulls one corresponding flap at the end of the urine drainage end outwards during the water injection process, and connect the connecting pipe 241 of the syringe 2 to the urinary catheter 1; (S5) The water pump 47 of the physiological saline delivery mechanism 4 injects the physiological saline into the syringe barrel 21 through the liquid inlet joint 26. The propulsion mechanism 33 of the electric injection pump 3 pushes the push rod 23 to inject the physiological saline into the bladder through the urinary catheter 1 for irrigation; (S6) The propulsion mechanism 33 of the electric injection pump 3 pulls back the push rod 23 to draw the mixed waste liquid of the physiological saline, urine, and blood clots in the bladder into the syringe barrel 21; (S7) The driving structure 34 of the electric injection pump 3 drives the rotating end cover 24 of the syringe 2 to rotate, disconnecting the connecting pipe 241 from the injection hole 211, and opening the negative pressure joint 53 of the waste liquid recovery mechanism 5. The propulsion mechanism 33 of the electric injection pump 3 pushes the push rod 23 to output the waste liquid in the syringe barrel 21 to the waste liquid recovery box 51 of the waste liquid recovery mechanism 5 through the liquid outlet joint 27; (S8) The propulsion mechanism 33 of the electric injection pump 3 resets the push rod 23 of the syringe 2, making the push rod 23 in a pulled-out state; (S9) Repeat steps (S5) to (S8) multiple times to irrigate the bladder blood clots multiple times. Additionally, after performing an operation of transporting the waste liquid to the waste liquid recovery mechanism 5 in step (S7), the driving mechanism of the electric injection pump 3 drives the rotating end cover 24 of the syringe 2 to reset, and the propulsion mechanism 33 of the electric injection pump 3 will pull the push rod 23 to realize the extraction of the waste liquid in the bladder again, and then discharge the waste liquid in the syringe barrel 21 again through step (S7).

[0041] Implementation effect: The following steps are carried out during bladder irrigation: (S1) The physiological saline is transported into the syringe barrel 21 of the syringe 2 through the physiological saline delivery mechanism 4; (S2) The propulsion mechanism 33 of the electric injection pump 3 propels the push rod 23 of the syringe 2, and the physiological saline is transported into the bladder through the catheter 1 for irrigation; (S3) The propulsion mechanism 33 of the electric injection pump 3 pulls the push rod 23 of the syringe 2 to reset, and the waste liquid (urine, physiological saline, blood clot mixture) in the bladder is pumped into the syringe barrel 21 of the syringe 2; (S4) The drive structure 34 of the electric injection pump 3 drives the rotating end cap 24 to rotate, so that the connecting pipe 241 is disconnected from the injection hole 211, and the propulsion mechanism 33 of the electric injection pump 3 propels the push rod 23 of the syringe 2, and the waste liquid in the syringe barrel 21 is transported into the waste liquid recovery mechanism 5 through the liquid outlet connector 27; Through the above steps, automatic multiple flushes can be realized, saving manpower, and the flushing intensity can be controlled and adjusted in real time by the electric injection pump 3 to prevent excessive flushing intensity from damaging the bladder.

[0042] The rotating end cap 24 is installed on the syringe barrel 21 through the threaded connection ring 28, and the two sealing rings 251 between the rotating end cap 24 and the syringe barrel 21 achieve double sealing to prevent liquid leakage; At the same time, the arc-shaped notch 281 provided on the threaded connection ring 28 and the limit block 244 provided on the annular ring 242 of the rotating end cap 24 can limit the rotation angle of the rotating end cap 24. The electric push rod 343 can be used to drive the electric drive rack 342 to move up and down. Since the drive gear ring 341 on the circumferential side of the rotating end cap 24 meshes with the drive rack 342, the rotating end cap 24 can be driven to rotate.

[0043] By setting the electric heating component 43 and the temperature sensor 46, the temperature of the physiological saline can be adjusted and controlled. At the same time, the setting of the heat preservation hose 48 can prevent the temperature of the physiological saline from changing too much during transportation. When the electric injection pump 3 pushes the push rod 23 of the syringe 2 to discharge the waste liquid, the one-way valve on the liquid outlet connector 27 opens, and the waste liquid flows into the waste liquid recovery box 51 through the liquid outlet hose 52 for collection. At the same time, when the negative pressure connector 53 on the waste liquid recovery box 51 is activated, the smoothness of the waste liquid flowing out of the syringe barrel 21 can be accelerated.

[0044] Since the size of the urine drainage hole 11 of the catheter 1 is relatively small, it is not conducive to the discharge of some blood clots. At this time, an auxiliary hole 13 in the shape of a "plus" sign is added to the end of the catheter 1. When the balloon 12 is inflated after being filled with water, the connecting band pulls one corresponding flap at the end of the urine drainage end outward, which is conducive to extracting the blood clots at this time.

[0045] This specific embodiment is only an interpretation of the present invention and is not a limitation thereof. After reading this specification, those skilled in the art may make modifications to this embodiment that do not contribute creatively, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A bladder blood clot flushing device, characterized in that: It comprises a urinary catheter (1), a syringe (2), an electric injection pump (3), a physiological saline delivery mechanism (4), and a waste liquid recovery mechanism (5); The syringe (2) comprises a syringe (21) having an injection hole (211) at the front end, a piston (22) telescopically arranged in the syringe (21), a push-pull rod (23) arranged on the piston (22), a rotating end cover (24) rotatably connected to the end of the syringe (21) and having a connecting tube (241) connected to the urinary catheter (1), a sealing component (25) arranged at the connection between the rotating end cover (24) and the syringe (21), a liquid inlet joint (26) arranged on the peripheral side of the end of the syringe (21) away from the rotating end cover (24) and having a built-in one-way valve, and a liquid outlet joint (27) arranged on the peripheral side of the end of the syringe (21) close to the rotating end cover (24) and having a built-in one-way valve. During the rotation of the rotating end cover (24) relative to the syringe (21), the connecting tube (241) can be switched between a state of being connected to the injection hole (211) and a state of being disconnected from the injection hole (211). The electric injection pump (3) comprises an injection pump body (31), a fixing mechanism (32) arranged on the injection pump body (31) and used to fix the injection cylinder (21), a propulsion mechanism (33) arranged on the injection pump body (31) and capable of driving the push-pull rod (23) to extend and retract, and a driving structure (34) arranged between the injection pump body and the rotating end cover (24) and capable of driving the rotating joint to rotate; The physiological saline delivery mechanism (4) is connected to the liquid inlet connector (26), and the waste liquid recovery mechanism (5) is connected to the liquid outlet connector (27); When the piston (22) is at the end away from the syringe (21), the physiological saline delivery mechanism (4) opens the one-way valve of the liquid inlet joint (26) by pressure during the process of injecting physiological saline; when the connecting tube (241) is connected to the injection hole (211), the physiological saline in the syringe (21) is discharged from the connecting tube (241) as the push-pull rod (23) is pushed forward, and the waste liquid generated in the bladder is drawn into the syringe (21) as the push-pull rod (23) is reset; when the connecting tube (241) is disconnected from the injection hole (211), the waste liquid in the syringe (21) opens the one-way valve in the liquid outlet joint (27) by pressure as the push-pull rod (23) is pushed forward, and the waste liquid is discharged from the liquid outlet joint (27).

2. A bladder blood clot flushing device according to claim 1, characterized in that: An annular ring (242) is provided at one end of the rotating end cover (24) close to the injection cylinder (21), an external thread is provided on the peripheral side of the injection cylinder (21) close to the rotating end cover (24), and a threaded connection ring (28) is provided on the rotating end cover (24) and is threadedly connected to the external thread to prevent the annular ring (242) from falling off; The rotating end cover (24) is provided with two first annular grooves (243), the end surface of the injection cylinder (21) is provided with two second annular grooves (212) corresponding to the first annular grooves (243), and the sealing assembly (25) comprises two sealing rings (251) respectively embedded between the first annular groove (243) and the second annular groove (212), and the two sealing rings (251) have different diameters; The threaded connection ring (28) is provided with an arc-shaped notch (281), and the annular ring (242) is provided with a limit block (244) that moves on the arc-shaped notch (281) during the rotation of the end cover (24); when the limit block (244) is located at one end of the arc-shaped notch (281), the connection tube (241) and the injection hole (211) are connected; when the limit block (244) is located at the other end of the arc-shaped notch (281), the connection tube (241) and the injection hole (211) are disconnected.

3. A bladder blood clot flushing device according to claim 2, characterized in that: A square limiting portion (213) is provided at the rear end of the injection cylinder (21), and a limiting groove (311) is provided on the injection pump body (31) for one side of the square limiting portion (213) to be embedded in order to prevent the injection cylinder (21) from rotating; The rear end of the push-pull rod (23) is provided with a circular connecting portion (231), and the propulsion mechanism (33) is provided with a connecting groove (331) for one side of the circular connecting portion (231) to be embedded; The driving structure (34) comprises a driving gear ring (341) arranged on the circumferential side of the rotating end cover (24), a driving rack (342) arranged on the injection pump body (31) and meshing with the driving gear ring (341), and an electric push rod (343) arranged on the injection pump body (31) and connected to one end of the driving rack (342).

4. A bladder blood clot flushing device according to claim 3, characterized in that: The physiological saline delivery mechanism (4) comprises a heat preservation box (41), a storage tank (42) arranged in the heat preservation box (41) and used to contain the physiological saline, an electric heating component (43) arranged in the heat preservation box (41) and used to heat the peripheral side of the storage tank (42), a control panel (44) arranged on the front side of the heat preservation box (41), a liquid outlet pipe (45) connected to the storage tank (42), a temperature sensor (46) arranged on the liquid outlet pipe (45), a water pump (47) arranged on the liquid outlet pipe (45) and located in the heat preservation box (41), and a heat preservation hose (48) connected between the water pump (47) and the liquid inlet joint (26).

5. A bladder blood clot flushing device according to claim 4, characterized in that: The waste liquid recovery mechanism (5) comprises a waste liquid recovery box (51), a liquid outlet hose (52) arranged between the waste liquid recovery box (51) and a liquid outlet connector (27), and a negative pressure connector (53) arranged on the side of the waste liquid recovery box (51) and capable of extracting air from the waste liquid recovery box (51) to form a negative pressure; the negative pressure connector (53) is connected to a control circuit board of the electric injection pump (3) by signal.

6. A bladder blood clot flushing device according to claim 5, characterized in that: The end of the urinary catheter (1) is provided with urinary catheter holes (11) on both sides, the end of the urinary catheter (1) is provided with an air bag (12) that expands after water is injected, the end of the urinary catheter (1) is provided with a "cross"-shaped auxiliary hole (13), the end of the urinary catheter (1) is divided into four petals by the auxiliary hole (13), and a connecting belt portion (14) that does not interfere with the urinary catheter hole (11) is provided between the air bag (12) and each petal of the end of the urinary catheter (1), and when the air bag (12) expands after water is injected, the connecting belt portion (14) pulls the corresponding petal of the end of the urinary catheter (1) outward.

7. A bladder blood clot flushing device according to claim 6, characterized in that: Bladder clot flushing involves the following steps: (S1) installing the syringe (2) on the electric syringe pump (3), and making the push-pull rod (23) of the syringe (2) in a pulled-out state through the propulsion mechanism (33) of the electric syringe pump (3); (S2) connecting the heat preservation hose (48) of the physiological saline delivery mechanism (4) to the liquid inlet connector (26) of the injection pump, and the electric heating component (43) of the physiological saline delivery mechanism (4) heats the physiological saline in the storage tank (42), and detects the temperature of the physiological saline through the temperature sensor (46) on the liquid outlet pipe (45), and feeds back the signal to the control panel (44), and the control panel (44) controls the power of the electric heating component (43) so that the temperature of the physiological saline is adjusted to a desired temperature; (S3) connecting the liquid outlet hose (52) of the waste liquid recovery mechanism (5) to the liquid outlet connector (27) of the injection pump; (S4) placing the urinary catheter (1) through the urethra into the bladder of the patient, and the air bag (12) of the urinary catheter (1) is inflated and fixed after water injection. During the water injection process, the connecting belt pulls the corresponding flap at the end of the urinary catheter outward, and connects the connecting tube (241) of the syringe (2) and the urinary catheter (1); (S5) The water pump (47) of the physiological saline delivery mechanism (4) injects the physiological saline into the syringe (21) through the liquid inlet connector (26), and the propulsion mechanism (33) of the electric injection pump (3) pushes the push-pull rod (23) to inject the physiological saline into the bladder through the urinary catheter (1) for flushing; (S6) the propulsion mechanism (33) of the electric injection pump (3) pulls back the push-pull rod (23) to draw the mixed waste liquid of physiological saline, urine and blood clots in the bladder into the injection cylinder (21); (S7) The driving structure (34) of the electric injection pump (3) drives the rotating end cover (24) of the syringe (2) to rotate, so that the connecting tube (241) and the injection hole (211) are disconnected, so that the negative pressure connector (53) of the waste liquid recovery mechanism (5) is connected to the external negative pressure device; the propulsion mechanism (33) of the electric injection pump (3) pushes the push-pull rod (23), and outputs the waste liquid in the injection barrel (21) to the waste liquid recovery box (51) of the waste liquid recovery mechanism (5) through the liquid outlet connector (27); (S8) the propulsion mechanism (33) of the electric injection pump (3) resets the push-pull rod (23) of the syringe (2), so that the push-pull rod (23) is in a pulled-out state; (S9) Repeat steps (S5) to (S8) multiple times to flush the bladder blood clot multiple times.

8. The bladder blood clot flushing device according to claim 7, characterized in that: After the waste liquid is transported to the waste liquid recovery mechanism (5) in step (S7), the driving mechanism of the electric injection pump (3) drives the rotating end cover (24) of the syringe (2) to reset, and the propulsion mechanism (33) of the electric injection pump (3) pulls and pushes the pull rod (23), so that the waste liquid in the bladder can be extracted again, and then the waste liquid in the syringe (21) is discharged again through step (S7).

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