CN113499533B

CN113499533B - Urethra perfusion device

Info

Publication number: CN113499533B
Application number: CN202110842744.8A
Authority: CN
Inventors: 张海梅; 秦爽; 郝璇; 陈露珍; 邱春艳
Original assignee: Chongqing University Cancer Hospital
Current assignee: Chongqing University Cancer Hospital
Priority date: 2021-07-26
Filing date: 2021-07-26
Publication date: 2023-04-28
Anticipated expiration: 2041-07-26
Also published as: CN113499533A

Abstract

The utility model belongs to the technical field of medical appliances, and particularly relates to a urethra perfusion device which comprises a perfusion box body, wherein three areas, namely a liquid injection area, a waste liquid area and a pressure transformation area, are arranged in the perfusion box body. The utility model realizes the pouring and recycling of the liquid medicine through the pressure difference of each area, realizes the separation of pouring, pressurizing and recycling waste liquid through partition treatment, realizes the pressurizing in the pouring device by changing the pressure in the pouring device through vortex effect, ensures that the liquid medicine can not flow back after being poured by reducing the volume and increasing the pressure, and realizes the recycling of the waste liquid through reverse pressure difference; the operation is simple, each step can also work independently, and the operability of the utility model is improved.

Description

Urethra perfusion device

Technical Field

The utility model belongs to the technical field of medical appliances, and particularly relates to a urethra syringe and a use method thereof.

Background

The current male urethra perfusion treatment mainly adopts the perfusion mode that: the 20ml syringe is used for extracting and pouring medicine, then the needle head is removed for standby, the male urinary catheter is conventionally disinfected, the hole towel is laid, the sterile glove is worn, the urethral meatus is disinfected again, the left hand is used for lifting the penis by 60 degrees with the abdominal wall by using the sterile gauze, the right hand is used for holding the syringe to enable the nipple to cling to the urethral meatus, the medicine liquid is slowly injected into the urethral meatus, and after medicine pushing is finished, the coronary sulcus is immediately tied by using the gauze so as to prevent urine from overflowing. Then placing the penis with the abdomen facing upwards on the lower abdomen, retaining the liquid medicine for 15-20 minutes, releasing the gauze, and discharging automatically. The biggest disadvantage of the perfusion method is that the nipple of the injector is not tightly connected with the urethral orifice, which is very easy to cause the overflow of the liquid medicine, thereby causing the waste of the liquid medicine and failing to achieve the treatment effect. The nipple of the injector is hard in material, and the mucous membrane at the urethral orifice is weak and extremely sensitive, so that the mucous membrane is easy to be damaged and uncomfortable; tying the coronary sulcus with gauze may affect blood circulation.

Chinese patent publication No. CN208799670U discloses a practical urethra syringe, which comprises a catheter made of silica gel, a side hole is provided on the side wall of one end of the catheter, an empty needle connecting device is provided on the other end of the catheter, and the empty needle connecting device adopts a positive pressure joint or a unidirectional valve; the end of the catheter provided with the hollow needle connecting device is also provided with a condom. The practical perfusion device provided by the utility model is used for urethra perfusion, not only simplifies the operation flow, is convenient for nurses to operate and reduces the perfusion cost, but also reduces the leakage of liquid medicine, reduces the risk of blocked blood circulation of the penis, relieves the discomfort symptoms such as distending pain of the penis and the like, improves the comfort level of patient perfusion, and ensures that the urethra perfusion achieves better medication effect. And can also be used for urinary incontinence control training of patients after ileal bladder replacement surgery and radical prostate cancer treatment surgery. Can be used as a device for multiple purposes, and can exert the greatest benefit.

However, the following problems still remain:

1. when the urethra is filled with the liquid medicine, the situation that the liquid medicine is not filled in or the liquid medicine flows back to cause the liquid medicine waste can occur.

2. The cleaned liquid medicine directly flows to the ground and needs to be cleaned again, which brings inconvenience to clinical work.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a urethra syringe which is used for solving the problems of time and labor waste, low efficiency, unstable connection and low structural strength in the assembly and maintenance of the prior art; when the urethra is filled with the liquid medicine, the situation that the liquid medicine is not filled in or the liquid medicine flows back to cause the liquid medicine waste can occur; the utility model also provides a use method of the urethra syringe, which is convenient to operate, simple and easy to understand, and operators can master the operation through simple training; the operation is simple, each step can also work independently, and the operability of the utility model is improved.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a urethra perfusion device, includes the perfusion box body, it is regional to divide into three in the perfusion box body, three region is annotate liquid district, waste liquid district and vary voltage district respectively, annotate and be equipped with the fly leaf between liquid district and the vary voltage district, annotate and be equipped with the translation board between liquid district and the waste liquid district, the translation board is the cavity board. The translation board both sides are equipped with the slide rail, realize the slip of translation board, realize the stock solution in the urethra is poured through three subregions, retrieve waste liquid and pressurization, realize pouring automation to solved the direct flow of the liquid medicine after the washing to ground, need clear up once more, brought inconvenient problem for clinical work, realize the notes liquid and the recovery of syringe through the removal of translation board, avoid waste liquid and liquid medicine to mix, increase the practicality of equipment.

Preferably, a temperature changing device is arranged in the pressure changing region, both sides of the temperature changing device are connected with temperature changing valves, and both ends of the temperature changing valves are connected with the inner wall of the pressure changing region. The temperature change valve of air conditioning exit end is equipped with the opening with pouring box body junction, opens at the gas separation back opening, and the air conditioning is directly got rid of outside the perfusion apparatus for the air conditioning can not change the temperature of pouring in it, and then can not influence the pressure in the perfusion apparatus, makes the atmospheric pressure of perfusion apparatus when the operation stable, is equipped with a plurality of apertures on the temperature change valve, and the aperture divides two-layer, and the second floor can remove, when needing to open the temperature change valve, and two-layer aperture removes, forms the dislocation and makes the temperature change valve be open state, and when two-layer aperture coincidence, the temperature change valve is closed state.

Preferably, the temperature changer comprises an air inlet, a vortex chamber, a separation orifice plate, a control valve, a cold air outlet and a hot air outlet, wherein the air inlet is connected with the vortex chamber, the separation orifice plate is arranged on the right side of the vortex chamber, and the control valve is arranged at the hot end. The normal temperature gas enters the gas inlet, expands in the gas inlet and accelerates to sonic velocity, and is injected into the vortex chamber from tangential direction to form free vortex, the larger the rotation angular velocity of the free vortex is, the friction is generated between layers of the free vortex due to different angular velocities, the angular velocity of the gas flow in the central part is maximum, the friction results are that energy is transferred to the gas flow with lower outer layer angular velocity, the gas flow in the central layer part loses energy, the kinetic energy is low, the speed is low, the temperature is low, the gas flow is led out from one end through a pore plate in the center of the vortex tube, the cold gas flow needed by refrigeration is obtained, the momentum is increased, the gas flow in the outer layer part is rubbed with the wall of the turbine tube, part of the kinetic energy is converted into heat energy, the other end of the vortex tube is led out through a control valve to form hot gas flow, the flow and the temperature of the cold and hot gas flow can be regulated through the control valve, and the heating and cooling of the pressure change area are realized through the design.

Preferably, sliding rails are arranged at two ends of the translation plate, the translation plate is composed of an upper layer plate and a lower layer plate, three air pressure valves are arranged between the upper layer plate and the lower layer plate, three openings are formed in the lower layer plate, and the air pressure valves are arranged at the openings. The three mouthfuls of lower plate are from left to right high gradually reduces, and this design makes the waste liquid store from the waste liquid district of right-most end earlier, guarantees that the waste liquid is stored the maximize to can set up the leakage fluid dram on the waste liquid district and the wall of filling the box body, make things convenient for the treatment of waste liquid, avoid needing to remove whole perfusion apparatus when handling the waste liquid, reduced the work load of handling the waste liquid.

Preferably, the transformation area is also provided with a transformation plate, two ends of the transformation plate are movably connected with the pouring box body, the right side of the transformation plate is connected with an air cylinder, and the air cylinder is connected with the right wall of the pouring box body. The cylinder is divided into a piston, a cylinder barrel and other structures, and the variable-pressure plate moves through the movement of the piston, so that the volume of a variable-pressure area is changed, and the aim of changing air pressure is fulfilled.

The application method of the urethra syringe comprises the following steps:

s1, before urethra perfusion, the air cylinder is contracted, the movable plate is closed, a catheter to be perfused is connected to an opening on the left side of the perfusion box body, the translation plate is positioned on the right side of the opening, the air pressure valve is closed, and warm boric acid liquid with the concentration of 3% is filled in the liquid filling area;

s2, when filling is started, the air cylinder contracts and stretches to drive the variable-pressure plate to move leftwards, the variable-pressure plate compresses the space of the variable-pressure area, the pressure of the variable-pressure area is increased, at the moment, the movable plate is opened, liquid medicine is pushed out of the liquid injection area under the action of pressure difference because the pressure of the variable-pressure area is higher than that of the liquid injection area, filling is completed, and liquid cannot flow back under the action of pressure;

s3, after pouring, the movable plate is closed, the translation plate moves to the opening, at the moment, the pressure in the device is atmospheric pressure, but the pressure in the guide pipe is the atmospheric pressure plus the liquid pressure, and the pressure in the guide pipe is larger than the pressure in the device, so that the liquid medicine flows back to the waste liquid area, and the recovery of the liquid medicine is completed.

Wherein S2 further comprises: the temperature changer is opened at the moment when the pressure is insufficient to push the liquid medicine in the filling process, normal-temperature gas is filled through the air inlet, so that the gas enters the vortex chamber, cold and hot two air flows are formed under the vortex effect, at the moment, the temperature change valve at the hot gas outlet end is opened, the hot gas enters the pressure change area to further increase the pressure of the pressure change area, and the normal filling of the liquid medicine is ensured.

Wherein S3 further comprises: after closing the movable plate, the translation plate moves to the opening, the liquid medicine flows back under the action of pressure difference, and at the moment, the three air pressure valves are opened, so that the liquid medicine flows to the liquid waste area, and as the heights of the three air pressure valves decrease in sequence, the liquid medicine can fill the three liquid waste areas once, and the recovery of the liquid waste is completed.

Compared with the prior art, the utility model has the following beneficial effects:

the urethra perfusion device is stable in connection, high in structural strength, convenient to assemble, disassemble and overhaul, convenient to operate, stable and reliable, long in service life, capable of realizing separation of perfusion, pressurization and recovery of waste liquid through partition treatment, capable of changing the pressure in the perfusion device through vortex effect to realize pressurization in the perfusion device, capable of ensuring that liquid medicine can not flow back after perfusion through volume increase pressure reduction, capable of realizing recovery of the waste liquid through reverse pressure difference, provided with an opening at the joint of a temperature changing valve at the outlet end of cold air and a perfusion box body, capable of opening after gas separation, capable of directly discharging cold air outside the perfusion device, so that the cold air can not change the temperature in the perfusion device, and the pressure in the perfusion device can not be influenced, so that the air pressure of the perfusion device is stable during operation, the temperature changing valve is provided with a plurality of small holes, the small holes can be divided into two layers, the second layer can move, the two layers of small holes move when the temperature changing valve needs to be opened, dislocation is formed, so that the temperature changing valve is in an open state, and when the two layers of small holes coincide, the temperature changing valve is in a closed state, so that the applicability of the device is improved.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of a urethral sound device according to the utility model;

fig. 2 is a schematic perspective view of an embodiment of a urethral sound device according to the utility model;

fig. 3 is a schematic top view of an embodiment of a urethral sound device according to the utility model;

fig. 4 is a schematic view of a temperature changer in an embodiment of a urethral sound device according to the utility model;

fig. 5 is a schematic view of a temperature changer in an embodiment of a urethral sound device according to the utility model;

FIG. 6 is a cross-sectional view taken at 5 A-A;

FIG. 7 is an enlarged schematic view of FIG. 6B;

reference numerals referred to in the drawings are: the device comprises a filling box body 1, a liquid filling area 101, a waste liquid area 102, a pressure transformation area 103, a movable plate 2, a translation plate 3, an upper layer plate 301, a lower layer plate 302, an air pressure valve 303, a temperature changer 4, a temperature change valve 401, an air inlet 402, a vortex chamber 404, a separation orifice plate 405, a control valve 406, a cold air outlet 407, a hot air outlet 408, a pressure transformation plate 5 and an air cylinder 6.

Detailed Description

In order that those skilled in the art will better understand the present utility model, the following technical scheme of the present utility model will be further described with reference to the accompanying drawings and examples. It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Example 1

As shown in fig. 1-7, the urethra perfusion device comprises a perfusion box body 1, wherein the perfusion box body 1 is internally divided into three areas, namely a liquid injection area 101, a waste liquid area 102 and a transformation area 103, a movable plate 2 is arranged between the liquid injection area 101 and the transformation area 103, a translation plate 3 is arranged between the liquid injection area 101 and the waste liquid area 102, and the translation plate 3 is a hollow plate. Further, slide rails are arranged on two sides of the translation plate 3, sliding of the translation plate 3 is achieved, liquid storage in urethra perfusion is achieved through three partitions, waste liquid and pressurization are recovered, perfusion automation is achieved, the problem that the cleaned liquid medicine directly flows to the ground and needs to be cleaned again, inconvenience is brought to clinical work is solved, liquid injection and recovery of the perfusion device are achieved through movement of the translation plate 3, mixing of the waste liquid and the liquid medicine is avoided, and practicality of the device is improved.

A temperature changer 4 is arranged in the pressure changing area 103, temperature changing valves 401 are connected to two sides of the temperature changer 4, and two ends of the two temperature changing valves 401 are connected with the inner wall of the pressure changing area 103. Further, an opening is formed at the joint of the temperature changing valve 401 at the end of the cold air outlet 407 and the pouring box body 1, the opening is opened after air separation, and cold air is directly discharged out of the pouring device, so that the cold air can not change the temperature in the pouring device and further the pressure in the pouring device can not be influenced, the air pressure of the pouring device is stable when the pouring device is in operation, a plurality of small holes are formed in the temperature changing valve 401, the small holes are divided into two layers, the second layer can move, when the temperature changing valve 401 needs to be opened, the two layers of small holes move to form dislocation, the temperature changing valve 401 is in an opened state, and when the two layers of small holes are overlapped, the temperature changing valve 401 is in a closed state.

The translation board 3 both ends are equipped with the slide rail, and translation board 3 comprises top plate 301 and lower plywood 302, is equipped with three pneumatic valve 303 between top plate 301 and the lower plywood 302, and lower plywood 302 is equipped with three opening, and pneumatic valve 303 installs in the opening part. Further, the three openings of the lower plate 302 are gradually reduced from left to right, so that the waste liquid is stored from the waste liquid area at the rightmost end, the waste liquid storage is ensured to be maximized, and the waste liquid area 102 and the wall of the filling box body 1 can be provided with liquid discharge openings, so that the waste liquid can be conveniently treated, the whole filling device is prevented from being moved when the waste liquid is treated, and the workload of treating the waste liquid is reduced.

The pressure changing area 103 is also provided with a pressure changing plate 5, two ends of the pressure changing plate 5 are movably connected with the pouring box body 1, the right side of the pressure changing plate 5 is connected with an air cylinder 6, and the air cylinder 6 is connected with the right wall of the pouring box body 1. Further, the cylinder 6 is divided into a piston and a cylinder barrel and other structures, and the variable-pressure plate 5 is moved by the movement of the piston, so that the volume of the variable-pressure area 103 is changed, and the purpose of changing the air pressure is achieved.

Example two

As a further improvement of the previous embodiment, as shown in fig. 1-7, the urethral perfusion device comprises a perfusion box body 1, wherein the perfusion box body 1 is divided into three areas, namely a liquid injection area 101, a waste liquid area 102 and a transformation area 103, a movable plate 2 is arranged between the liquid injection area 101 and the transformation area 103, a translation plate 3 is arranged between the liquid injection area 101 and the waste liquid area 102, and the translation plate 3 is a hollow plate. Further, slide rails are arranged on two sides of the translation plate 3, sliding of the translation plate 3 is achieved, liquid storage in urethra perfusion is achieved through three partitions, waste liquid and pressurization are recovered, perfusion automation is achieved, the problem that the cleaned liquid medicine directly flows to the ground and needs to be cleaned again, inconvenience is brought to clinical work is solved, liquid injection and recovery of the perfusion device are achieved through movement of the translation plate 3, mixing of the waste liquid and the liquid medicine is avoided, and practicality of the device is improved.

The temperature changer 4 comprises an air inlet 402, a vortex chamber 404, a separation orifice plate 405, a control valve 406, a cold air outlet 407 and a hot air outlet 408, wherein the air inlet 402 is connected with the vortex chamber 404, the separation orifice plate 405 is arranged on the right side of the vortex chamber 404, and the control valve 406 is arranged at the hot end 408. Further, the normal temperature gas enters the gas inlet 402, expands in the gas inlet 402 and accelerates to sonic velocity, and is injected into the vortex chamber 404 from tangential direction to form free vortex, the larger the rotation angular velocity of the free vortex is, the friction is generated between the layers of the free vortex due to different angular velocities, the gas flow angular velocity of the central part is maximum, the energy is transferred to the gas flow with lower outer layer angular velocity as a result of friction, the gas flow of the central layer part loses energy, the kinetic energy is low, the speed is reduced, the temperature is reduced, the gas flow is led out from one end through the orifice plate at the center of the vortex tube to obtain cold gas flow needed by refrigeration, the gas flow of the outer layer part obtains momentum, the kinetic energy is increased, meanwhile, the gas flow rubs with the wall of the turbine tube to convert part of kinetic energy into heat energy, and the gas flow is led out from the other end of the vortex tube through the control valve to form hot gas flow. The flow and the temperature of the cold air flow and the hot air flow can be regulated by controlling the control valve, and the heating and the cooling of the variable pressure region 103 are realized by the design, so that the pressure change of the variable pressure region 103 is realized.

The advantages of the embodiment over the first embodiment are:

1. the sliding rails are arranged on two sides of the translation plate 3, so that sliding of the translation plate 3 is realized, liquid storage in urethra perfusion is realized through three partitions, waste liquid is recovered and pressurized, perfusion automation is realized, the problem that the cleaned liquid medicine directly flows to the ground and needs to be cleaned again, inconvenience is brought to clinical work is solved, liquid injection and recovery of the perfusion device are realized through movement of the translation plate 3, mixing of the waste liquid and the liquid medicine is avoided, and the practicability of the device is improved;

2. an opening is arranged at the joint of the temperature changing valve 401 at the cold air outlet 407 end and the pouring box body 1, the opening is opened after air separation, and cold air is directly discharged out of the pouring device, so that the cold air can not change the temperature in the pouring device and further can not influence the pressure in the pouring device, the air pressure of the pouring device is stable when the pouring device operates, the temperature changing valve 401 is provided with a plurality of small holes, the small holes are divided into two layers, the second layer can move, when the temperature changing valve 401 needs to be opened, the two layers of small holes move to form dislocation, the temperature changing valve 401 is in an opened state, and when the two layers of small holes are overlapped, the temperature changing valve 401 is in a closed state;

3. the normal temperature gas enters the gas inlet 402, expands in the gas inlet 402 and accelerates to sonic velocity, and is injected into the vortex chamber 404 from tangential direction to form free vortex, the larger the rotation angular velocity of the free vortex is, the friction is generated between layers of the free vortex due to different angular velocities, the gas flow angular velocity of the central part is maximum, the friction results are that energy is transferred to the gas flow with lower outer layer angular velocity, the gas flow of the central layer part loses energy, the kinetic energy is low, the velocity is reduced, the temperature is reduced, the gas flow is led out from one end through an orifice plate at the center of the vortex tube to obtain cold gas flow required by refrigeration, the gas flow of the outer layer part obtains momentum, the kinetic energy is increased, and meanwhile, the gas flow is rubbed with the turbine tube wall to convert part of kinetic energy into heat energy, and the gas flow is led out from the other end of the vortex tube through a control valve to form hot gas flow;

4. the three ports of the lower plate 302 are gradually reduced from left to right, the design enables the waste liquid to be stored from the waste liquid area at the rightmost end, the waste liquid storage is guaranteed to be maximized, and the waste liquid area 102 and the wall of the pouring box body 1 can be provided with liquid discharge ports, so that the waste liquid is convenient to treat, the whole pouring device is prevented from being moved when the waste liquid is treated, and the workload of treating the waste liquid is reduced;

5. the cylinder 6 is divided into a piston, a cylinder barrel and other structures, and the variable-pressure plate 5 is moved by the movement of the piston, so that the volume of the variable-pressure area 103 is changed, and the purpose of changing the air pressure is achieved.

Through subregion processing, realize pouring, pressurization and retrieve the separation of waste liquid, change the pressure in the syringe through vortex effect and realize pouring the pressurization in it to through reducing volume increase pressure, guarantee that liquid medicine can not backward flow after pouring, realize retrieving of waste liquid through reverse pressure differential.

The application method of the urethra syringe comprises the following steps:

s1, before urethra perfusion, the air cylinder 6 is contracted, the movable plate 2 is closed, a catheter to be perfused is connected to the opening on the left side of the perfusion box body 1, the translation plate 3 is positioned on the right side of the opening, the air pressure valve 303 is closed, and 3% of warm boric acid liquid is filled in the liquid injection area 101;

s2, when filling is started, the air cylinder 6 contracts and stretches to drive the variable pressure plate 5 to move leftwards, the variable pressure plate 5 compresses the space of the variable pressure region 103, the pressure of the variable pressure region 103 is increased, at the moment, the movable plate 2 is opened, liquid medicine is pushed out of the liquid injection region 101 under the action of pressure difference because the pressure of the variable pressure region 103 is higher than that of the liquid injection region 101, filling is completed, and liquid cannot flow back under the action of pressure;

s3, after the pouring, the movable plate 2 is closed, the translation plate 3 moves to the opening, at the moment, the pressure in the device is atmospheric pressure, but the pressure in the conduit is the atmospheric pressure plus the liquid pressure, and the pressure in the conduit is greater than the pressure in the device, so that the liquid medicine flows back to the waste liquid area 102, and the recovery of the liquid medicine is completed.

Wherein S2 further comprises: the situation that the pressure is insufficient to push the liquid medicine can occur in the filling process, at the moment, the temperature changer 4 is opened, normal-temperature gas is filled through the gas inlet 402, so that the gas enters the vortex chamber 404, cold and hot two gas flows are formed under the vortex effect, at the moment, the temperature change valve 401 at the hot gas outlet 408 end is opened, the hot gas enters the pressure change area 103 to further increase the pressure of the pressure change area 103, and the normal filling of the liquid medicine is ensured.

Wherein S3 further comprises: after the movable plate 2 is closed, the translation plate 3 moves to the opening, the liquid medicine flows back under the action of pressure difference, and at the moment, the three air pressure valves 303 are opened, so that the liquid medicine flows to the waste liquid area 102, and as the heights of the three air pressure valves 303 decrease in sequence, the liquid medicine fills the three waste liquid areas once, and waste liquid recovery is completed.

The foregoing is merely an embodiment of the present utility model, and a specific structure and characteristics of common knowledge in the art, which are well known in the scheme, are not described herein, so that a person of ordinary skill in the art knows all the prior art in the application day or before the priority date of the present utility model, and can know all the prior art in the field, and have the capability of applying the conventional experimental means before the date, so that a person of ordinary skill in the art can complete and implement the present embodiment in combination with his own capability in the light of the present application, and some typical known structures or known methods should not be an obstacle for a person of ordinary skill in the art to implement the present application. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent.

Claims

1. The urethra perfusion device is characterized by comprising a perfusion box body (1), wherein the perfusion box body (1) is internally divided into three areas, the three areas are respectively a liquid injection area (101), a waste liquid area (102) and a pressure transformation area (103), a movable plate (2) is arranged between the liquid injection area (101) and the pressure transformation area (103), a translation plate (3) is arranged between the liquid injection area (101) and the waste liquid area (102), and the translation plate (3) is a hollow plate; the catheter to be poured is connected to the opening on the left side of the pouring box body (1), the translation plate (3) is positioned on the right side of the opening, after pouring is finished, the translation plate (3) moves to the opening, and liquid medicine flows back to the waste liquid area (102).

2. A urethral irrigator according to claim 1 wherein: a temperature change device (4) is arranged in the pressure change area (103), temperature change valves (401) are connected to two sides of the temperature change device (4), and two ends of the temperature change valves (401) are connected with the inner wall of the pressure change area (103).

3. A urethral irrigator according to claim 2 wherein: the temperature changer (4) comprises an air inlet (402), a vortex chamber (404), a separation orifice plate (405), a control valve (406), a cold air outlet (407) and a hot air outlet (408), wherein the air inlet (402) is connected with the vortex chamber (404), the separation orifice plate (405) is arranged on the right side of the vortex chamber (404), and the control valve (406) is arranged at the hot air outlet (408).

4. A urethral irrigator according to claim 3 wherein: the transformer area (103) is further provided with a transformer plate (5), two ends of the transformer plate (5) are movably connected with the pouring box body (1), the right side of the transformer plate (5) is connected with an air cylinder (6), and the air cylinder (6) is connected with the right wall of the pouring box body (1).