CN111888556A

CN111888556A - Hemodialysis machine

Info

Publication number: CN111888556A
Application number: CN202010864737.3A
Authority: CN
Inventors: 刘国跃; 钱明江; 陈武; 吴航; 殷存芝
Original assignee: Second Affiliated Hospital of Zunyi Medical University
Current assignee: Second Affiliated Hospital of Zunyi Medical University
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2020-11-06
Anticipated expiration: 2040-08-25
Also published as: CN111888556B

Abstract

The application relates to the technical field of medical equipment, and particularly discloses a hemodialysis machine, which comprises a hemodialysis machine body and a transport vehicle, wherein the hemodialysis machine body is placed in the transport vehicle, a protective barrel is fixed at the inner bottom of the transport vehicle, the protective barrel is sleeved at the periphery of the hemodialysis machine, an air bag is fixed on the inner side wall of the protective barrel, a one-way air inlet valve and a one-way air outlet valve are arranged on the air bag, the one-way air outlet valve is connected with an air storage tank through a pipeline, the outlet end of the air storage tank is connected with a Venturi tube through an automatic valve, the throat part of the Venturi tube is connected with a disinfectant through a suction tube, the diffusion section of the Venturi tube is connected with a; the upper part of the hemodialysis machine is provided with a disinfection button, and the automatic valve is electrically connected with the disinfection button. The purpose of this patent is to solve the easy problem that produces the vibration of hemodialysis machine in the in-process of transportation.

Description

Hemodialysis machine

Technical Field

The invention relates to the technical field of medical equipment, in particular to a hemodialysis machine.

Background

Hemodialysis is one of the kidney replacement treatment modes of patients with acute and chronic renal failure. The blood and electrolyte solution (dialysate) with similar concentration of organism are arranged inside and outside one hollow fiber by draining the blood in vivo to the outside of the body through a dialyzer consisting of a plurality of hollow fibers, and the material exchange is carried out by dispersion/convection, thereby removing the metabolic waste in the body and maintaining the balance of electrolyte and acid-base; at the same time, the excess water in the body is removed, and the whole process of purified blood reinfusion is called hemodialysis.

The existing hemodialysis machine can only be used in a ward because of being heavy, and cannot meet the requirements of patients when the patients need hemodialysis in the transportation process. And place the hemodialysis machine in the car, the hemodialysis machine produces easily and rocks, influences the normal work of hemodialysis machine on the one hand, and on the other hand hemodialysis machine vibration produces the noise, is unfavorable for patient's treatment.

In addition, the hemodialysis machine is easy to splash blood or other liquid during use, and medical staff is easy to infect bacteria and viruses during operation, so that the hemodialysis machine needs to be sterilized frequently.

In addition, the time of each use of the hemodialysis machine is generally 2-3h, the long-term use of the hemodialysis machine causes the easy damage of the fan of the hemodialysis machine, and once the fan fails, the hemodialysis machine cannot work normally, which brings danger to patients.

Disclosure of Invention

Aiming at the defects in the prior art, the technical problem to be solved by the invention is to provide the hemodialysis machine, and the problem that the hemodialysis machine is easy to vibrate in the transportation process is solved.

In order to solve the problems, the technical scheme adopted by the invention is as follows: a hemodialysis machine comprises a hemodialysis machine body, a screen and a control button are arranged on the upper part of the hemodialysis machine body, and the hemodialysis machine also comprises a transport cart, wheels are arranged on the bottom of the transport cart, the hemodialysis machine body is arranged at the inner bottom of the transport vehicle, a protective barrel is fixed at the inner bottom of the transport vehicle and sleeved at the periphery of the hemodialysis machine, an air bag is fixed on the inner side wall of the protective cylinder, a one-way air inlet valve and a one-way air outlet valve are arranged on the air bag, the one-way air inlet valve is communicated with the outside, the one-way air outlet valve is connected with an air storage tank through a pipeline, the outlet end of the air storage tank is connected with a Venturi tube through an automatic valve, the Venturi tube comprises an inlet section, a throat part and a diffusion section, the throat part of the Venturi tube is connected with a disinfectant through a suction tube, the diffusion section of the Venturi tube is connected with a spray head, and the spray head is positioned right above the hemodialysis machine body; the upper portion of hemodialysis machine is provided with the disinfection button, automatic valve and disinfection button electric connection press the disinfection button once, and the automatic valve is opened, presses the disinfection button again, and the automatic valve is closed.

The technical principle of the technical scheme is as follows:

1. the transport vehicle is arranged, and the hemodialysis machine is placed on the transport vehicle, so that the hemodialysis of a patient can be conveniently carried out in the transport process;

2. the air bag is arranged, the shape of the air bag is ellipsoidal, when the air bag is extruded, the air bag can deform, the one-way air inlet valve is closed, the one-way air outlet valve is opened, and the air bag discharges air; when the extrusion force disappears, the air bag resets under the action of the self elasticity, and in the process of resetting the air bag, the one-way air inlet valve is opened, the one-way air outlet valve is closed, and the air bag sucks external air; the air bag intermittently inhales and exhausts air, and the air bag plays a role of an inflator. The in-process that hemodialysis machine rocked can extrude repeatedly and loosen the gasbag, and the gasbag also can play the effect to hemodialysis machine buffering simultaneously, reduces rocking of hemodialysis machine, reduces the noise that hemodialysis machine rocked the production simultaneously.

3. Set up gas holder and venturi, the gasbag combustion gas is stored in the gas holder and compressed in the gas holder, produce compressed gas in the gas holder, press the disinfection button, the automatic valve is opened, gas holder exhaust compressed gas gets into in the venturi, venturi flows through the gas of high-speed flow, venturi's throat produces the negative pressure, venturi's throat inhales the antiseptic solution through the straw, antiseptic solution and gas mixture form the antiseptic solution spraying through the atomizing of shower nozzle, antiseptic solution spraying sprays on the screen and the button of hemodialysis machine body, disinfect the screen and the button of hemodialysis machine body, after the disinfection finishes, press the disinfection button once more, the automatic valve is closed, the gas holder resumes the gas storage.

The beneficial effect that this scheme produced is:

compared with the existing hemodialysis machine, the existing hemodialysis machine can only be used in a ward due to being heavy, the requirements of a patient cannot be met when the patient needs hemodialysis in the transportation process, and the hemodialysis machine is placed in a vehicle and is easy to shake, so that the normal work of the hemodialysis machine is influenced, and the hemodialysis machine vibrates to generate noise, so that the treatment of the patient is not facilitated; and hemodialysis machine in this application scheme places on the transport vechicle, make things convenient for patient to use at the in-process of transportation, and the gasbag plays the effect of buffering to hemodialysis machine, reduce the noise of hemodialysis machine because of rocking the production, and simultaneously, hemodialysis machine extrudees repeatedly and loosens the gasbag and makes the gasbag form the inflater, the gasbag combustion gas is stored in the gas holder, when needs disinfect to the screen and the button of hemodialysis machine body, medical personnel press the disinfection button, but this hemodialysis machine is disinfected automatically, avoid medical personnel to be infected by bacterium and virus.

Further, the number of the air bags is set to be 2-6 and the air bags are evenly distributed on the circumference of the axis of the protection barrel.

The 2-6 air bags are arranged, so that the effects of buffering and noise reduction on the hemodialysis machine can be enhanced, the amount of gas entering the gas storage tank can be increased, and the requirement of a Venturi tube is better met.

Furthermore, the suction pipe is a first three-way pipe, a first automatic three-way valve is arranged at the intersection of three branches of the first three-way pipe, and the other branch of the first three-way pipe is connected with a water source; the diffusion section of the Venturi tube is connected with the spray head through a second three-way pipe, a second automatic three-way valve is arranged at the intersection of three branches of the second three-way pipe, a heat exchange pipe is arranged inside the hemodialysis machine, the other branch of the second three-way pipe is connected with the heat exchange pipe inside the hemodialysis machine, and the outlet end of the heat exchange pipe is arranged at the bottom of the hemodialysis machine; the automatic water supply system comprises a hemodialysis machine, a controller, an automatic valve, a first automatic three-way valve, a second automatic three-way valve, a controller and a temperature sensor, wherein the hemodialysis machine is internally provided with the temperature sensor, the temperature sensor is electrically connected with the automatic valve, the first automatic three-way valve and the second automatic three-way valve through the controller, when the temperature detected by the temperature sensor exceeds the upper limit of a set value, the temperature sensor opens the automatic valve through the controller, meanwhile, the first automatic three-way valve is switched to communicate a water source with the throat of a Venturi tube, and meanwhile, the; when the temperature that temperature sensor detected is less than the lower limit of setting value, temperature sensor makes the automatic valve close through the controller, and first automatic three-way valve switches to simultaneously and communicates antiseptic solution and venturi throat, and the automatic three-way valve of second switches to simultaneously and communicates venturi and shower nozzle.

When a cooling fan in the hemodialysis machine breaks down and the temperature detected by the temperature sensor is higher than the upper limit of a set value, the temperature sensor opens the automatic valve through the controller, the first automatic three-way valve is switched to communicate a water source with the throat part of the Venturi tube, and the second automatic three-way valve is switched to communicate the Venturi tube with a heat exchange tube in the hemodialysis machine; the high-speed flowing gas discharged from the gas storage tank enters the Venturi tube, the throat part of the Venturi tube generates negative pressure, the throat part of the Venturi tube absorbs water through the suction tube, the water is scattered by the high-speed flowing gas in the Venturi tube to form small water drops, the air is fully mixed with the small water drops, the small water drops absorb heat in the air, the temperature of the air entering the heat exchange tube inside the hemodialysis machine is reduced, and compared with the heat dissipation method adopting a fan, the heat dissipation effect of the hemodialysis machine can be improved; along with radiating the going on, the inside temperature of hemodialysis machine reduces gradually, and when the temperature that temperature sensor detected was less than the lower limit of setting value, temperature sensor made the automatic valve through the controller and closed, first automatic three-way valve switched to simultaneously and communicates antiseptic solution and venturi throat, and the automatic three-way valve of second switches to simultaneously and communicates venturi and shower nozzle, and the inside compressed gas of gas holder can be used to the automatic disinfection of hemodialysis machine. The hemodialysis machine can be switched between two working modes of heat dissipation and disinfection.

Further, a pressure relief valve is arranged on the air storage tank.

When the gas pressure in the gas storage tank exceeds a threshold value, the pressure release valve is automatically opened to release the pressure of the gas storage tank, so that explosion caused by overlarge gas pressure in the gas storage tank is avoided.

Further, the number of the spray heads is set to be 2-4 and the spray heads are evenly arranged right above the hemodialysis machine at intervals.

2-4 spray heads can be arranged to cover the upper part of the whole hemodialysis machine, so that the overall disinfection performance is improved.

Furthermore, the water source is a water tank, and one end of the suction pipe connected with the water tank extends to the bottom in the water tank.

Water in this application scheme mainly used is to the cooling of air, consequently only need a small amount of water can, convenient transportation.

Drawings

Fig. 1 is an overall structural view.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the hemodialysis machine comprises a transport vehicle 10, wheels 11, a hemodialysis machine body 20, a screen 21 of the hemodialysis machine body, a disinfection button 22, a control button 23 of the hemodialysis machine body, a protective cylinder 30, an air bag 31, a one-way air inlet valve 32, a one-way air outlet valve 33, a communication pipe 34, an air storage tank 40, a pressure release valve 41, an automatic valve 42, a venturi tube 50, a suction pipe 51, a first automatic three-way valve 52, a second automatic three-way valve 53, a spray nozzle 54, a water tank 60 and a disinfectant tank 61.

The embodiment is basically as shown in the attached figure 1:

a hemodialysis machine includes a hemodialysis machine body 20 and a transport cart 10.

As shown in fig. 1, a screen 21 of the hemodialysis machine body and a control button 23 of the hemodialysis machine body are arranged on the upper portion of the hemodialysis machine body 20, the hemodialysis machine body 20 is placed on the inner bottom portion of the transport cart 10, wheels 11 are arranged on the bottom portion of the transport cart 10, a cylindrical protection barrel 30 is fixed on the inner bottom portion of the transport cart 10, the axis of the protection barrel 30 is arranged along the vertical direction, the protection barrel 30 is sleeved on the periphery of the hemodialysis machine, an air bag 31 is fixed on the inner side wall of the protection barrel 30, the air bag 31 is in an ellipsoidal shape, a one-way air inlet valve 32 is arranged at the lower end of the air bag 31, a one-way air outlet valve 33 is arranged at the upper end of the air bag 31, and the one-way air inlet valve; the number of the air bags 31 is set to be 4 and the air bags are evenly distributed in the circumferential direction of the axis of the protection cylinder 30, the outlet ends of the one-way air outlet valves 33 of the 4 air bags 31 are connected with the same annular communication pipe 34, the annular communication pipe 34 is fixed at the opening of the protection cylinder 30, and the communication pipe 34 and the protection cylinder 30 are coaxially arranged.

The hemodialysis machine shakes and extrudes the air bag 31 in the transportation process, when the air bag 31 is extruded, the air bag 31 deforms, the one-way air inlet valve 32 is closed, the one-way air outlet valve 33 is opened, and the air bag 31 exhausts air; when the extrusion force of the hemodialysis machine body 20 on the air bag 31 disappears, the air bag 31 resets under the action of the own elastic force, and in the process of resetting the air bag 31, the one-way air inlet valve 32 is opened, the one-way air outlet valve 33 is closed, and the air bag 31 sucks external air; the air bag 31 intermittently sucks and exhausts air, and functions as an inflator. The air bag 31 can also play a role in buffering the hemodialysis machine body 20, so that the shaking of the hemodialysis machine body 20 is reduced, and the noise generated by the shaking of the hemodialysis machine body 20 is reduced. The arrangement of 4 air bags 31 in this embodiment can enhance the cushioning and noise reduction effects on the hemodialysis machine body 20, and can increase the total amount of gas discharged from the air bags 31.

As shown in fig. 1, the communicating pipe 34 is connected with a gas storage tank 40 through a pipeline, the gas storage tank 40 is fixed at the top in the transport vehicle 10, the outlet end of the gas storage tank 40 is connected with a venturi tube 50 through an automatic valve 42, the venturi tube 50 comprises an inlet section, a throat part and a diffuser section, the outlet end of the gas storage tank 40 is connected with the inlet section of the venturi tube 50, the throat part of the venturi tube 50 is connected with a suction pipe 51, the suction pipe 51 is a first three-way pipe, a first automatic three-way valve 52 is arranged at the intersection of three branches of the first three-way pipe, the other two branches of the first three-way pipe are connected with a water tank 60 and a disinfectant liquid limiting tank 61, the water tank 60 and the disinfectant liquid tank 61 are fixed inside the transport vehicle 10, one end of the suction pipe 51 connected with the water; the diffusion section of the venturi tube 50 is connected with a second three-way pipe, a second automatic three-way valve 53 is arranged at the intersection of three branches of the second three-way pipe, a heat exchange pipe is arranged inside the hemodialysis machine body 20, the outlet end of the heat exchange pipe is arranged at the bottom of the hemodialysis machine, the other two branches of the second three-way pipe are respectively connected with the heat exchange pipe inside the hemodialysis machine body 20 and a spray nozzle 54, and the spray nozzle 54 is positioned right above the hemodialysis machine body 20; a temperature sensor is arranged in the hemodialysis machine body and is electrically connected with the automatic valve 42, the first automatic three-way valve 52 and the second automatic three-way valve 53 through a controller, when the temperature detected by the temperature sensor exceeds 70 ℃, the automatic valve 42 is opened through the controller by the temperature sensor, meanwhile, the first automatic three-way valve 52 is switched to communicate a water source with the throat part of the Venturi tube 50, and meanwhile, the second automatic three-way valve 53 is switched to communicate the Venturi tube 50 with a heat exchange tube in the hemodialysis machine; when the temperature detected by the temperature sensor is lower than 60 c, the temperature sensor causes the automatic valve 42 to close by the controller, while the first automatic three-way valve 52 is switched to communicate the sterilizing liquid with the throat of the venturi tube 50, while the second automatic three-way valve 53 is switched to communicate the venturi tube 50 with the shower head 54. The hemodialysis machine body 20 is provided with a disinfection button 22 on the upper part, the automatic valve 42 is electrically connected with the disinfection button 22, the disinfection button 22 is pressed, the automatic valve 42 is opened, the disinfection button 22 is pressed again, and the automatic valve 42 is closed.

The gas discharged from the airbag 31 is stored in the gas tank 40 and compressed in the gas tank 40, and the compressed gas is generated in the gas tank 40.

Normally, the automatic valve 42 is closed, the first automatic three-way valve 52 is switched to communicate the sterilizing fluid with the throat of the venturi tube 50, and the second automatic three-way valve 53 is switched to communicate the venturi tube 50 with the shower head 54. When needing to disinfect hemodialysis machine body 20, press disinfection button 22, automatic valve 42 opens, compressed gas that gas holder 40 discharged gets into in venturi tube 50, the gas that flows at a high speed flows in venturi tube 50, venturi tube 50's throat produces the negative pressure, venturi tube 50's throat inhales the antiseptic solution through straw 51, antiseptic solution and gas mixture form antiseptic solution spray through the atomizing of shower nozzle 54, antiseptic solution spray sprays on hemodialysis machine body's screen 21 and button, disinfect hemodialysis machine body's screen 21 and button, after the disinfection finishes, press disinfection button 22 once more, automatic valve 42 closes, gas holder 40 resumes the gas storage.

When the heat radiation fan inside the hemodialysis machine body 20 is out of order and the temperature detected by the temperature sensor is higher than 70 ℃, the temperature sensor opens the automatic valve 42 through the controller, and simultaneously the first automatic three-way valve 52 is switched to communicate the water source with the throat of the venturi tube 50, and simultaneously the second automatic three-way valve 53 is switched to communicate the venturi tube 50 with the heat exchange tube inside the hemodialysis machine body 20; the high-speed flowing gas discharged from the gas storage tank 40 enters the venturi tube 50, the throat part of the venturi tube 50 generates negative pressure, the throat part of the venturi tube 50 absorbs water through the suction pipe 51, the water is scattered by the high-speed flowing gas in the venturi tube 50 to form small water drops, the air is fully mixed with the small water drops, the small water drops absorb heat in the air, the temperature of the air entering the heat exchange pipe inside the hemodialysis machine body is reduced, and compared with the heat dissipation method adopting a fan, the heat dissipation effect of the hemodialysis machine body 20 can be improved; along with radiating the progress, the inside temperature of hemodialysis machine body reduces gradually, and when the temperature that temperature sensor detected was less than 60 ℃, temperature sensor made automatic valve 42 close through the controller, first automatic three-way valve 52 switched to simultaneously and communicates antiseptic solution and venturi 50 throat, and second automatic three-way valve 53 switches to simultaneously and communicates venturi 50 and shower nozzle 54, and the inside compressed gas of gas holder 40 can be used to the self-sterilizer of hemodialysis machine body 20.

Because the water in the water tank 60 in the scheme of this application mainly is used for the cooling to the air, consequently only need a small amount of water can, convenient transportation.

If the temperature inside the hemodialysis machine is still higher than 60 ℃ after the gas in the gas storage tank 40 is exhausted, the automatic valve 42 keeps the opening state continuously, the gas exhausted by the gas bag 31 directly passes through the gas storage tank 40 and the Venturi tube 50 and then is exhausted into the heat exchange tube of the hemodialysis machine body 20, the continuous heat dissipation of the hemodialysis machine body 20 is realized, the hemodialysis machine body 20 can be continuously used in a short time, and the fan needs to be stopped and maintained as soon as possible.

The hemodialysis machine can be switched between two working modes of heat dissipation and disinfection.

In this embodiment, the number of the nozzles 54 is set to 3 and the nozzles are uniformly arranged right above the hemodialysis machine body 20 at intervals, and the 3 nozzles 54 are arranged to cover the upper portion of the whole hemodialysis machine body 20, thereby increasing the overall performance of disinfection.

As shown in fig. 1, the air tank 40 is provided with a relief valve 41. When the gas pressure in the gas storage tank 40 exceeds 1MPa, the pressure release valve 41 is automatically opened to release the pressure of the gas storage tank 40, so that the explosion of the gas storage tank 40 due to overlarge gas pressure is avoided.

The specific implementation process is as follows:

in the initial state, the automatic valve 42 is closed, the first automatic three-way valve 52 is switched to communicate the sterilizing liquid with the throat of the venturi tube 50, and the second automatic three-way valve 53 is switched to communicate the venturi tube 50 with the shower nozzle 54.

The hemodialysis machine shakes during transportation and is pressed to the air bag 31, the air bag 31 intermittently sucks and exhausts air to play a role of an inflator, and the air exhausted from the air bag 31 is stored in the air storage tank 40 to generate compressed air.

When needing to disinfect hemodialysis machine body 20, press disinfection button 22, automatic valve 42 opens, compressed gas that gas holder 40 was discharged gets into in venturi 50, venturi 50's throat produces the negative pressure, venturi 50's throat inhales the antiseptic solution through straw 51, antiseptic solution and gas mixture form antiseptic solution spray through the atomizing of shower nozzle 54, antiseptic solution spray sprays on hemodialysis machine body's screen 21 and button, disinfect hemodialysis machine body 20's screen 21 and button, after the disinfection finishes, press disinfection button 22 once more, automatic valve 42 closes, gas holder 40 resumes the gas storage.

When the heat radiation fan inside the hemodialysis machine body 20 is out of order and the temperature detected by the temperature sensor is higher than 70 ℃, the temperature sensor opens the automatic valve 42 through the controller, and simultaneously the first automatic three-way valve 52 is switched to communicate the water tank 60 with the throat of the venturi tube 50, and simultaneously the second automatic three-way valve 53 is switched to communicate the venturi tube 50 with the heat exchange tube inside the hemodialysis machine body 20; the gas flowing at high speed is discharged from the gas storage tank 40 and enters the Venturi tube 50, the throat part of the Venturi tube 50 generates negative pressure, the throat part of the Venturi tube 50 absorbs water through the suction tube 51, the water absorbs heat in the air, and the temperature of the air entering the heat exchange tube in the hemodialysis machine is reduced; as the heat dissipation progresses, the temperature inside the hemodialysis machine gradually decreases, and when the temperature detected by the temperature sensor is lower than 60 ℃, the temperature sensor causes the automatic valve 42 to be closed by the controller, and at the same time, the first automatic three-way valve 52 is switched to communicate the sterilizing liquid with the throat of the venturi tube 50, and at the same time, the second automatic three-way valve 53 is switched to communicate the venturi tube 50 with the spray head 54.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a hemodialysis machine, includes hemodialysis machine body, and the upper portion of hemodialysis machine body is provided with screen and control button, its characterized in that: the hemodialysis machine body is placed at the inner bottom of the transport vehicle, a protective barrel is fixed at the inner bottom of the transport vehicle and sleeved at the periphery of the hemodialysis machine, an air bag is fixed on the inner side wall of the protective barrel, a one-way air inlet valve and a one-way air outlet valve are arranged on the air bag and communicated with the outside, the one-way air outlet valve is connected with an air storage tank through a pipeline, the outlet end of the air storage tank is connected with a Venturi tube through an automatic valve, the Venturi tube comprises an inlet section, a throat part and a diffusion section, the throat part of the Venturi tube is connected with a disinfectant through a straw, the diffusion section of the Venturi tube is connected with a spray head, and the spray head is positioned right above the hemodialysis machine body; the upper portion of hemodialysis machine is provided with the disinfection button, automatic valve and disinfection button electric connection press the disinfection button once, and the automatic valve is opened, presses the disinfection button again, and the automatic valve is closed.

2. A hemodialysis machine according to claim 1, wherein: the number of the air bags is set to be 2-6 and the air bags are evenly distributed on the circumference of the axis of the protective cylinder.

3. A hemodialysis machine according to claim 1, wherein: the suction pipe is a first three-way pipe, a first automatic three-way valve is arranged at the intersection of three branches of the first three-way pipe, and the other branch of the first three-way pipe is connected with a water source; the diffusion section of the Venturi tube is connected with the spray head through a second three-way pipe, a second automatic three-way valve is arranged at the intersection of three branches of the second three-way pipe, a heat exchange pipe is arranged inside the hemodialysis machine, the other branch of the second three-way pipe is connected with the heat exchange pipe inside the hemodialysis machine, and the outlet end of the heat exchange pipe is arranged at the bottom of the hemodialysis machine; the automatic water supply system comprises a hemodialysis machine, a controller, an automatic valve, a first automatic three-way valve, a second automatic three-way valve, a controller and a temperature sensor, wherein the hemodialysis machine is internally provided with the temperature sensor, the temperature sensor is electrically connected with the automatic valve, the first automatic three-way valve and the second automatic three-way valve through the controller, when the temperature detected by the temperature sensor exceeds the upper limit of a set value, the temperature sensor opens the automatic valve through the controller, meanwhile, the first automatic three-way valve is switched to communicate a water source with the throat of a Venturi tube, and meanwhile, the; when the temperature that temperature sensor detected is less than the lower limit of setting value, temperature sensor makes the automatic valve close through the controller, and first automatic three-way valve switches to simultaneously and communicates antiseptic solution and venturi throat, and the automatic three-way valve of second switches to simultaneously and communicates venturi and shower nozzle.

4. A hemodialysis machine according to claim 1, wherein: and the gas storage tank is provided with a pressure relief valve.

5. A hemodialysis machine according to claim 1, wherein: the number of the spray heads is set to be 2-4 and the spray heads are evenly arranged above the hemodialysis machine at intervals.

6. A hemodialysis machine according to claim 1, wherein: the water source is a water tank, and one end of the suction pipe connected with the water tank extends to the bottom in the water tank.