Concentrated concentrated solution supply switchable hemodialysis device

Abstract

The utility model relates to a concentrated solution supply switchable hemodialysis device, and relates to the technical field of medical instruments. Comprising a hemodialysis device body, a concentrated liquid supply pipe, a pump connecting pipe, a suction rod pipe and a three-way adjusting valve. The hemodialysis device body is provided with a flushing tank and a pump connector; the flushing tank is arranged on the hemodialysis device body; one end of the pump connecting pipe is connected to the pump connecting port; one end of the suction rod pipe is placed in the flushing tank; one of the suction rod pipe and the concentrated concentrated solution supply pipe is switched to be communicated with the pump connecting pipe by the three-way regulating valve according to different states, so that the phenomenon that the pump connecting pipe and the concentrated concentrated solution supply pipe are forgotten to be separated due to errors of an operator is avoided; the problems that when an existing hemodialysis device supplies concentrated liquid in a concentrated mode and conducts disinfection, due to the fact that repeated switching exists, mistaken plugging and manual plugging cause abrasion of a connector pipeline, the concentrated liquid enters an instrument in the disinfection process, liquid leakage occurs, and the disinfection and calcium removal effect is not ideal are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially is involved in a kind of blood dialysis device of centralized supply concentrated liquid switchable. BACKGROUND

[0002] Common blood dialysis device blood dialysis device after working for a period of time or after ending treatment, often need to manually switch the connection state of pump connecting pipe and pump connecting port to the connection state of pump connecting pipe and suction rod pipe, then carry out internal pipeline disinfection or flushing step of blood dialysis device by program selection on system, realize the switch of blood dialysis device from working treatment state to blood dialysis device disinfection state.

[0003] But because in daily work, operator can forget to carry out pipeline plug due to fatigue or negligence etc., therefore cause blood dialysis device to enter disinfection program, concentrated liquid is inhaled into dialysis, and when blood dialysis device disinfection program liquid circuit circulates, liquid flows out from water tank overflow port, lead to blood dialysis device disinfection liquid concentration is diluted and heating speed slows down in heat disinfection process, does not reach ideal disinfection and the effect of removing crystallization, make working environment more messy, and unhygienic.Moreover, the plug operation of pump connecting pipe also needs certain force and operation, and the skill of operating nurse is required higher;In addition, manual plug operation can also lead to the wear and tear of joint pipeline, easy to damage and leakage.

[0004] For the related technology in the above, the existing blood dialysis device exists the situation that concentrated liquid supply and disinfection are switched back and forth, and the wear and tear of joint pipeline caused by misplug and manual plug, leading to the problems of leakage when concentrated liquid enters the instrument during disinfection and unsatisfactory disinfection and calcium removal effect. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a blood dialysis device with centralized supply of concentrated liquid switchable, which aims to solve the problems of misplug and manual plug caused by the back-and-forth switching of concentrated liquid supply and disinfection in the existing blood dialysis device, leading to leakage when concentrated liquid enters the instrument during disinfection and unsatisfactory disinfection and calcium removal effect.

[0006] The blood dialysis device with centralized supply of concentrated liquid switchable provided in the application adopts the following technical solution: a blood dialysis device with centralized supply of concentrated liquid switchable, comprising:

[0007] A blood dialysis device body is provided with a flushing tank and a pump connecting port;

[0008] A concentrated liquid supply pipe is used to output concentrated liquid;

[0009] a pump connecting pipe, one end of which is connected to the pump connecting port;

[0010] a suction rod pipe, one end of which is placed in the flushing tank;

[0011] a three-way regulating valve, three valve ports of which are respectively communicated with the other end of the pump connecting pipe, the other end of the suction rod pipe and the concentrated liquid supply pipe, and the three-way regulating valve is used for switching one of the suction rod pipe and the concentrated liquid supply pipe to be communicated with the pump connecting pipe.

[0012] Optionally, the concentrated liquid supply switchable hemodialysis device comprises a central control unit, the central control unit is electrically connected with the three-way regulating valve, and the central control unit is used for controlling switching of the passage of the three-way regulating valve.

[0013] Optionally, the concentrated liquid supply switchable hemodialysis device comprises a suction rod sensing unit, the suction rod sensing unit is arranged in the flushing tank, the suction rod sensing unit is electrically connected or communicatively connected with the central control unit, and the suction rod sensing unit is used for sensing presence of the suction rod pipe in the flushing tank.

[0014] Optionally, the suction rod sensing unit is one of a photoelectric sensor, a proximity sensor and a pressure sensor.

[0015] Optionally, the concentrated liquid supply switchable hemodialysis device comprises a light reminding unit, the light reminding unit is electrically connected with the central control unit, and the light reminding unit is used for emitting light of different colors.

[0016] Optionally, the concentrated liquid supply switchable hemodialysis device comprises a sound reminding unit, the sound reminding unit is electrically connected with the central control unit, and the sound reminding unit is used for emitting a reminding sound.

[0017] Optionally, the pump connecting pipe and the three-way regulating valve are detachably connected;

[0018] and / or, the suction rod pipe and the three-way regulating valve are detachably connected;

[0019] and / or, the concentrated liquid supply pipe and the three-way regulating valve are detachably connected.

[0020] Optionally, the concentrated liquid supply pipe comprises a first circulating pipe, a second circulating pipe and a supply pipe, one end of the first circulating pipe is used for connecting a concentrated liquid supply liquid storage barrel, one end of the second circulating pipe is used for connecting the concentrated liquid supply liquid storage barrel, and one end of the supply pipe is connected with the three-way regulating valve;

[0021] the other end of the first circulating pipe, the other end of the second circulating pipe and the other end of the supply pipe are commonly communicated.

[0022] Optionally, the light reminding element is a warning light or a display screen.

[0023] Optionally, the sound reminding element is a buzzer or a loudspeaker.

[0024] Compared with the prior art, the embodiments of the present application have the following advantages:

[0025] The adjusting valve is connected with the pump connecting pipe, the suction rod pipe and the concentrated liquid supply pipe respectively, when the hemodialysis device needs to work, the adjusting valve is adjusted to make the concentrated liquid supply pipe communicate with the pump connecting pipe, so that the hemodialysis device works; when the internal pipeline of the hemodialysis device needs to be sterilized or cleaned, the adjusting valve is adjusted to make the pump connecting pipe only communicate with the suction rod pipe, so that the hemodialysis device enters the sterilization state, and the sterilizing liquid in the flushing tank can flow in the dialyzer and the pipeline by the pump system of the hemodialysis device, so as to remove the residual blood, blood clots and protein impurities.

[0026] The adjusting valve switches one of the suction rod pipe and the concentrated liquid supply pipe to communicate with the pump connecting pipe according to different states, which avoids the phenomenon that the pump connecting pipe is not separated from the concentrated liquid supply pipe due to the mistake of the operator, solves the problem that the existing hemodialysis device needs to be switched back and forth between the concentrated liquid supply and sterilization, and the plug-in and plug-out operation leads to the wear of the joint pipeline, and the concentrated liquid leaks into the instrument during sterilization, and the sterilization and calcium removal effect is not ideal. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0028] Figure 1 is a schematic diagram of the whole structure of the hemodialysis device with switchable concentrated liquid supply in the embodiments of the present application;

[0029] Figure 2 is Figure 1 is an enlarged view of part A in

[0030] Figure 3 is a schematic diagram of the structure of the adjusting valve of the hemodialysis device with switchable concentrated liquid supply in the embodiments of the present application.

[0031] Explanation of reference signs:

[0032] 1. Hemodialysis device body; 11. Centralized concentrate supply pipe; 111. First circulation pipe; 112. Second circulation pipe; 113. Supply pipe; 2. Flushing tank; 21. Snap-fit ​​groove; 3. Pump connection pipe; 4. Suction rod pipe; 41. Suction rod head; 411. Snap-fit ​​protrusion; 5. Three-way regulating valve; 51. First connecting end; 52. Second connecting end; 53. Third connecting end. Detailed Implementation

[0033] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] The present application will be further described in detail below with reference to the accompanying drawings.

[0035] This application discloses a hemodialysis device with a centralized concentrate supply that can be switched.

[0036] like Figure 1 As shown, a hemodialysis device with a switchable centralized concentrate supply includes a hemodialysis device body 1, a centralized concentrate supply pipe 11, a pump connecting pipe 3, a suction rod pipe 4, and a three-way regulating valve 5. The hemodialysis device body 1 is equipped with a flushing tank 2 and a pump connection port. The centralized concentrate supply pipe 11 is used to output the concentrate. The flushing tank 2 is located on the hemodialysis device body 1 and stores disinfectant during disinfection. One end of the pump connecting pipe 3 is connected to the pump connection port. One end of the suction rod pipe 4 is placed in the flushing tank 2. The three-way regulating valve 5 has three ports connected to the other end of the pump connecting pipe 3, the other end of the suction rod pipe 4, and the centralized concentrate supply pipe 11, respectively. The three-way regulating valve 5 is used to switch one of the suction rod pipe 4 and the centralized concentrate supply pipe 11 to be connected to the pump connecting pipe 3.

[0037] The three-way regulating valve 5 is connected to the pump connecting pipe 3, the suction pipe 4, and the centralized concentrate supply pipe 11. When the hemodialysis device needs to work, the three-way regulating valve 5 is adjusted to connect the centralized concentrate supply pipe 11 to the pump connecting pipe 3, so that the hemodialysis device can perform treatment. When the internal pipeline of the hemodialysis device needs to be disinfected or cleaned, the three-way regulating valve 5 is adjusted to connect the pump connecting pipe 3 to the suction pipe 4 only, so that the hemodialysis device enters the disinfection state. With the help of the pump system of the hemodialysis device, the disinfectant in the flushing tank 2 can circulate in the dialyzer and pipeline, thereby removing residual blood, blood clots, proteins and other impurities.

[0038] The three-way regulating valve 5 switches one of the concentrated liquid supply pipe 11 and the suction rod pipe 4 to communicate with the pump connecting pipe 3 according to different states, avoids the phenomenon that the pump connecting pipe 3 is not separated from the concentrated liquid supply pipe 11 due to the mistake of an operator, and solves the problems that the existing hemodialysis device is switched back and forth between concentrated liquid supply and disinfection, the plug-in and plug-out of the joint pipeline are caused by mistake, the joint pipeline is worn out, the concentrated liquid leaks into the instrument during disinfection, and the disinfection and calcium removal effect are not ideal.

[0039] As shown in Figure 1 and Figure 3 The hemodialysis device with switchable concentrated liquid supply comprises a central control device, the central control device is electrically connected with the three-way regulating valve 5, and the central control device is used for controlling the switching of the passage of the three-way regulating valve 5.

[0040] The hemodialysis device with switchable concentrated liquid supply further comprises a suction rod sensing member, the suction rod sensing member is arranged in the flushing tank 2, the suction rod sensing member is electrically connected or communicatively connected with the central control device, and the suction rod sensing member is used for sensing the presence of the suction rod pipe 4 in the flushing tank 2.

[0041] Specifically, the three-way regulating valve 5 is a three-way electromagnetic valve, the three-way regulating valve 5 comprises a first communication end 51, a second communication end 52 and a third communication end 53, and the first communication end 51 is in communication with the second communication end 52 and the third communication end 53 respectively. One end of the pump connecting pipe 3 is in communication with the first communication end 51, the concentrated liquid supply pipe 11 is in communication with the second communication end 52, and the suction rod pipe 4 is in communication with the third communication end 53.

[0042] The three-way regulating valve 5 is provided with an electromagnet and a valve core, and the electromagnet is electrically connected with the main control board.

[0043] The three-way regulating valve 5 is provided with a first state and a second state, and the central control device can control the three-way regulating valve 5 to switch between the first state and the second state.

[0044] When the three-way regulating valve 5 is in the first state, the suction rod pipe 4 is in communication with the pump connecting pipe 3.

[0045] When the three-way regulating valve 5 is in the second state, the concentrated liquid supply pipe 11 is in communication with the pump connecting pipe 3.

[0046] When the electromagnet is powered on, a magnetic field is generated, the valve core in the magnetic field moves, the valve core blocks between the first communication end 51 and the second communication end 52, so that the first communication end 51 and the third communication end 53 are in a conductive state, at this time, the three-way regulating valve 5 is in the first state, the disinfectant in the flushing tank 2 can enter the hemodialysis device body 1 through the suction rod pipe 4 and the pump connecting pipe 3 in turn, and the disinfectant circulates in the dialyzer and the pipeline, so as to remove impurities such as residual blood, blood and protein.

[0047] When the electromagnet is powered off, the valve core moves in the opposite direction, and the valve core blocks the first communication end 51 and the third communication end 53, so that the first communication end 51 and the second communication end 52 are in a conductive state. At this time, the three-way regulating valve 5 is in the second state, the concentrated liquid supply pipe 11 is connected with the pump connecting pipe 3, the concentrated liquid output by the concentrated liquid supply pipe 11 enters the hemodialysis device body 1 through the pump connecting pipe 3, and the hemodialysis device body 1 performs normal treatment work.

[0048] In one implementation manner of the embodiment of the present application, the pump connecting pipe 3 and the first communication end 51 are detachably connected.

[0049] In another implementation manner of the embodiment of the present application, the concentrated liquid supply pipe 11 and the second communication end 52 are detachably connected.

[0050] In another implementation manner of the embodiment of the present application, the suction rod pipe 4 and the third communication end 53 are detachably connected.

[0051] In another implementation manner of the embodiment of the present application, the pump connecting pipe 3 and the first communication end 51 are detachably connected, and the concentrated liquid supply pipe 11 and the second communication end 52 are detachably connected.

[0052] In another implementation manner of the embodiment of the present application, the pump connecting pipe 3 and the first communication end 51 are detachably connected, and the suction rod pipe 4 and the third communication end 53 are detachably connected.

[0053] In another implementation manner of the embodiment of the present application, the concentrated liquid supply pipe 11 and the second communication end 52 are detachably connected, and the suction rod pipe 4 and the third communication end 53 are detachably connected.

[0054] In another implementation manner of the embodiment of the present application, the pump connecting pipe 3 and the first communication end 51 are detachably connected, the suction rod pipe 4 and the third communication end 53 are detachably connected, and the suction rod pipe 4 and the third communication end 53 are detachably connected.

[0055] The detachable connection manner can facilitate the maintenance or replacement of the pump connecting pipe 3, the concentrated liquid supply pipe 11, the suction rod pipe 4 and the three-way regulating valve 5 at any time.

[0056] The three-way regulating valve 5 is electrically connected with the central control device, and the central control device can control the on-off of the electromagnet in the three-way regulating valve 5 to control the generation or change of the magnetic field, so as to realize the control of the central control device on the path switching of the three-way regulating valve 5.

[0057] It should be noted that the hemodialysis device body 1 is also electrically connected with the central control device.

[0058] Further, when the suction rod pipe 4 is placed into the flushing tank 2, the three-way regulating valve 5 is switched to the first state.

[0059] When the suction rod pipe 4 is taken out of the flushing tank 2, the three-way regulating valve 5 switches to the second state.

[0060] When the suction rod pipe 4 is put into the flushing tank 2, the suction rod sensor can sense the suction rod pipe 4, so that the suction rod sensor sends a first sensing signal to the central control device, and after the central control device receives the first sensing signal, the central control device controls the electromagnetic iron of the three-way regulating valve 5 to be turned on, the electromagnetic iron is powered on, and the three-way regulating valve 5 enters the first state, at this time, the first communication end 51 and the third communication end 53 are in a conductive state, and the hemodialysis device enters a disinfection and flushing program, disinfectant in the flushing tank 2 can enter the hemodialysis device body 1 through the suction rod pipe 4 and the pump connecting pipe 3 in turn, and the disinfectant circulates in the dialyzer and the pipeline to remove impurities such as residual blood, blood and protein.

[0061] When the suction rod pipe 4 is taken out of the flushing tank 2, the suction rod sensor cannot sense the suction rod pipe 4 at this time, the suction rod sensor sends a second sensing signal to the central control device, and after the central control device receives the second sensing signal, the central control device controls the electromagnetic iron of the three-way regulating valve 5 to be turned off, the electromagnetic iron is turned off, and the three-way regulating valve 5 enters the second state, at this time, the concentrated liquid supply pipe 11 is in communication with the pump connecting pipe 3, and the hemodialysis device body 1 enters a self-checking treatment program to perform subsequent treatment work.

[0062] The suction rod sensor is one of a photoelectric sensor, a proximity sensor and an ultrasonic sensor.

[0063] Specifically, the suction rod sensor is a photoelectric sensor, the photoelectric sensor includes an infrared ray emitter and an infrared ray sensor, the infrared ray emitter and the infrared ray sensor are oppositely arranged in the flushing tank 2, the infrared ray emitter is used for emitting infrared rays, the infrared ray sensor is used for receiving the infrared rays emitted by the infrared ray emitter, and the suction rod pipe is arranged between the infrared ray emitter and the infrared ray sensor.

[0064] When the infrared ray sensor receives the infrared rays emitted by the infrared ray emitter, the three-way regulating valve 5 switches to the second state.

[0065] When the infrared ray sensor cannot receive the infrared rays emitted by the infrared ray emitter, the three-way regulating valve 5 switches to the first state.

[0066] When the infrared ray sensor receives the infrared rays, the infrared ray sensor sends a second sensing signal to the central control device.

[0067] When the infrared ray sensor cannot receive the infrared rays, the infrared ray sensor sends a first sensing signal to the central control device.

[0068] The infrared ray emitter and the infrared ray sensor are arranged on the tank bottom of the flushing tank 2, and the infrared ray emitter and the infrared ray sensor are oppositely arranged on the tank bottom.

[0069] When the suction rod pipe 4 is not put into the washing tank 2, the infrared rays emitted by the infrared ray emitter can be received by the opposite infrared ray inductor, and the infrared ray inductor transmits a second sensing signal to the central control. After receiving the second sensing signal, the central control controls the electromagnetic iron of the three-way regulating valve 5 to be disconnected, and the electromagnetic iron is disconnected, so that the three-way regulating valve 5 enters the second state. At this time, the concentrated liquid supply pipe 11 is in communication with the pump connecting pipe 3, the blood dialysis device body 1 enters the self-checking treatment program, and the subsequent treatment work is carried out.

[0070] When the suction rod pipe 4 is put into the washing tank 2, the infrared rays emitted by the infrared ray emitter are blocked by the suction rod pipe 4, and the infrared rays cannot be received by the infrared ray inductor. The infrared ray inductor transmits a first sensing signal to the central control. After receiving the first sensing signal, the central control controls the electromagnetic iron of the three-way regulating valve 5 to be turned on, and the electromagnetic iron is powered on, so that the three-way regulating valve 5 enters the first state. At this time, the first communication end 51 and the third communication end 53 are in a conductive state, and the blood dialysis device enters the disinfection and washing program. The disinfectant in the washing tank 2 can enter the blood dialysis device body 1 through the suction rod pipe 4 and the pump connecting pipe 3 in turn, and the disinfectant circulates in the dialyzer and the pipeline to remove impurities such as residual blood, blood and protein.

[0071] The operator only needs to operate once to complete the switching of the concentrated liquid supply and the disinfection pipeline at the same time, which is convenient and safe to operate.

[0072] It should be noted that the installation positions of the infrared ray emitter and the infrared ray inductor are not limited here. The infrared ray emitter and the infrared ray inductor can also be arranged on the side wall of the washing tank 2. It is only required that the infrared rays emitted by the infrared ray emitter can be blocked by the suction rod pipe 4 when the suction rod pipe 4 is put into the washing tank 2, and the infrared rays emitted by the infrared ray emitter can be received by the infrared ray inductor when the suction rod pipe 4 is not put into the washing tank 2.

[0073] Further, as shown in Figure 1 and Figure 2 , one end of the suction rod pipe 4 inserted into the washing tank 2 is provided with a suction rod head 41, and the suction rod head 41 is provided with a clamping protrusion. The side wall of the washing tank 2 at the slot is provided with a clamping groove 21, and the clamping protrusion is clamped with the clamping groove 21. When the suction rod head 41 is inserted into the washing tank, the clamping protrusion and the clamping groove 21 can prevent the suction rod pipe 4 from shaking after being inserted into the washing tank 2, thereby increasing the stability of the work.

[0074] It should be noted that the selection of the suction rod sensing element is not limited herein, and the suction rod sensing element can also be a proximity sensor or a pressure sensor, as long as the effect of switching the three-way regulating valve 5 to the second state when the suction rod tube 4 is inserted into the flushing tank 2 and switching the three-way regulating valve 5 to the first state when the suction rod tube 4 is not inserted into the flushing tank 2 can be achieved.

[0075] That is, not only infrared ray emitters and infrared ray sensors can be used.

[0076] The centralized concentrated liquid supply switchable hemodialysis device includes a light reminder element, the light reminder element is electrically connected with the master control element, and the light reminder element is used to emit light of different colors.

[0077] Specifically, the centralized concentrated liquid supply switchable hemodialysis device includes a state reminder element, the state reminder element includes a light reminder element, and the state reminder element is provided with a first reminder state and a second reminder state.

[0078] When the three-way regulating valve 5 is in the first state, the state reminder element is in the first reminder state.

[0079] When the three-way regulating valve 5 is in the second state, the state reminder element is in the second reminder state.

[0080] When the state reminder element is in the first reminder state, the light reminder element emits first light.

[0081] When the state reminder element is in the second reminder state, the light reminder element emits second light, wherein the colors of the first light and the second light are different.

[0082] The light reminder element is a warning light, when the suction rod tube 4 is placed into the flushing tank 2, and the master control element receives the first sensing signal, at this time, the master control element controls the electromagnetic element to be turned on, at this time, the state reminder element is in the first reminder state, and the master control element controls the indicator light to emit red light, which is used to remind the operator that the hemodialysis device body 1 has entered a disinfection flushing program and is performing disinfection work on the hemodialysis device body 1.

[0083] When the suction rod tube 4 is taken out of the flushing tank 2, and the master control element receives the second sensing signal, at this time, the master control element controls the electromagnetic element to be turned off, at this time, the state reminder element is in the second reminder state, and the master control element controls the indicator light to emit green light, which is used to remind the operator that the hemodialysis device body 1 has entered a self-checking treatment program and is performing normal treatment work.

[0084] In another embodiment of the present embodiment, the light reminder element can also be a display screen, when the hemodialysis device body 1 enters the disinfection flushing program, the display screen displays red reminder text, such as: the current hemodialysis device is being disinfected.

[0085] When the blood dialysis device body 1 enters the self-checking treatment program, the display screen displays a green reminder font, such as: the current blood dialysis device is working.

[0086] The centralized concentrated liquid supply switchable blood dialysis device comprises a sound reminding member, which is electrically connected with the main control board, and is used for emitting a reminding sound.

[0087] Specifically, the state reminding member further comprises a light reminding member, and when the state reminding member is in the second reminding state, the sound reminding member emits the reminding sound.

[0088] The sound reminding device is a buzzer or a loudspeaker, and when the state reminding member is in the first reminding state, the central control member controls the indicating lamp to emit red light and controls the sound reminding device to emit an alarm sound to remind the operator, at this time, the blood dialysis device body 1 has entered the disinfection flushing program and is performing disinfection work on the blood dialysis device body 1.

[0089] As shown in the figure, the centralized concentrated liquid supply pipe 11 comprises a first circulating pipe 111, a second circulating pipe 112 and a supply pipe 113, one end of the first circulating pipe 111 is used for connecting the centralized concentrated liquid storage barrel, one end of the second circulating pipe 112 is used for connecting the centralized concentrated liquid storage barrel, and one end of the supply pipe 113 is connected with the three-way regulating valve 5. The other end of the first circulating pipe 111, the other end of the second circulating pipe 112 and the other end of the supply pipe 113 are common.

[0090] Specifically, the concentrated liquid required for the operation of the blood dialysis device body 1 needs to be provided by the centralized concentrated liquid storage barrel.

[0091] The centralized concentrated liquid supply pipe 11 is a three-way pipe. One end of the first circulating pipe 111 and one end of the second circulating pipe 112 are in communication with the centralized concentrated liquid storage barrel, and the other end of the first circulating pipe 111 and the other end of the second circulating pipe 112 are in communication with each other and are respectively in communication with one end of the supply pipe 113, and the other end of the supply pipe 113 is in communication with the second communication end 52 of the three-way regulating valve 5.

[0092] The concentrated liquid in the centralized concentrated liquid storage barrel will flow out from the first circulating pipe 111 and finally flow into the second circulating pipe 112.

[0093] When the three-way regulating valve 5 is in the first state, the valve core will block between the first communication end 51 and the second communication end 52, at this time, the concentrated liquid in the centralized concentrated liquid storage barrel cannot enter the first communication end 51, and the concentrated liquid will fill the first circulating pipe 111, the second circulating pipe 112 and the supply pipe 113, and circulate between the centralized concentrated liquid storage barrel, the first circulating pipe 111 and the second circulating pipe 112.

[0094] When the three-way regulating valve 5 is in the second state, the first communication end 51 and the second communication end 52 are communicated, so that the concentrated solution flows out from the concentrated solution supply pipe 113, flows into the pump connecting pipe 3 through the three-way regulating valve 5, and finally flows into the hemodialysis device body 1 to perform the treatment work.

[0095] In summary, the centralized concentrated solution supply switchable hemodialysis device comprises the hemodialysis device body 1, the concentrated solution supply pipe 11, the pump connecting pipe 3, the suction rod pipe 4 and the three-way regulating valve 5. The hemodialysis device body 1 is provided with the flushing groove 2 and the pump connecting port, and the concentrated solution supply pipe 11 is used for outputting the concentrated solution. The flushing groove 2 is arranged on the hemodialysis device body 1, and the disinfectant is stored in the groove of the flushing groove 2 when disinfection is performed. One end of the pump connecting pipe 3 is connected to the pump connecting port. One end of the suction rod pipe 4 is placed in the flushing groove 2. The three valve ports of the three-way regulating valve 5 are respectively communicated with the other end of the pump connecting pipe 3, the other end of the suction rod pipe 4 and the concentrated solution supply pipe 11. The three-way regulating valve 5 is used for switching one of the suction rod pipe 4 and the concentrated solution supply pipe 11 to be communicated with the pump connecting pipe 3.

[0096] The three-way regulating valve 5 is connected to the pump connecting pipe 3, the suction rod pipe 4 and the concentrated solution supply pipe 11. When the hemodialysis device needs to work, the three-way regulating valve 5 is adjusted to make the concentrated solution supply pipe 11 communicated with the pump connecting pipe 3, so that the hemodialysis device performs the treatment work. When the internal pipeline of the hemodialysis device needs to be disinfected or cleaned, the three-way regulating valve 5 is adjusted to make the pump connecting pipe 3 communicated with the suction rod pipe 4 only, so that the hemodialysis device enters the disinfection state. With the pump system of the hemodialysis device, the disinfectant in the flushing groove 2 can be circulated in the dialyzer and the pipeline, so as to remove the residual blood, blood clots, proteins and other impurities.

[0097] The three-way regulating valve 5 switches one of the suction rod pipe 4 and the concentrated solution supply pipe 11 to be communicated with the pump connecting pipe 3 according to different states, which avoids the phenomenon that the pump connecting pipe 3 is not separated from the concentrated solution supply pipe 11 due to the mistake of the operator. The problem that the existing hemodialysis device is switched back and forth between the centralized concentrated solution supply and disinfection, and the plug-in and plug-out are mistaken, and the joint pipeline is worn due to manual plug-in and plug-out is solved. The problem that the concentrated solution leaks into the instrument during disinfection and the disinfection and calcium removal effect are not ideal is solved.

[0098] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0099] It should be noted that the present application introduces the specific structure and working principle of the centralized concentrated solution supply switchable hemodialysis device, but the application of the present application is not limited to the centralized concentrated solution supply switchable hemodialysis device, and can also be applied to the production and use of other similar workpieces.

[0100] It is to be understood that the present application is not limited to the precise construction that has been described above and illustrated in the accompanying drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the present application. The scope of the present application is limited only by the appended claims.

[0101] The above only is the preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement etc. made in the spirit and principle of the present application, should be included in the protection scope of the present application.

Claims

1. A hemodialysis apparatus capable of switching between centralized supply of concentrated liquid, characterized by, The application relates to a blood dialysis device with switchable concentrated liquid supply, which comprises the following parts: a blood dialysis device body provided with a flushing tank and a pump connecting port; a concentrated liquid supply pipe for outputting concentrated liquid; a pump connecting pipe connected at one end to the pump connecting port; a suction rod pipe placed at one end in the flushing tank; a three-way regulating valve with three valve ports respectively communicated with the other end of the pump connecting pipe, the other end of the suction rod pipe and the concentrated liquid supply pipe, and used for switching one of the suction rod pipe and the concentrated liquid supply pipe to be communicated with the pump connecting pipe.

2. The centrally supplied concentrate switchable hemodialysis device according to claim 1, characterized in that The blood dialysis device with switchable concentrated liquid supply comprises a main control unit electrically connected with the three-way regulating valve, which is used for controlling the switching of the passage of the three-way regulating valve.

3. The centrally supplied concentrate switchable hemodialysis device according to claim 2, characterized in that The blood dialysis device with switchable concentrated liquid supply comprises a suction rod sensing unit arranged in the flushing tank, which is electrically connected or communicatively connected with the main control unit, and used for sensing the presence of the suction rod pipe in the flushing tank.

4. The centrally supplied concentrate switchable hemodialysis device according to claim 3, characterized in that The suction rod sensing unit is one of a photoelectric sensor, a proximity sensor and a pressure sensor.

5. The centrally supplied concentrated fluid switchable hemodialysis device according to claim 2, characterized in that The blood dialysis device with switchable concentrated liquid supply comprises a light reminding unit electrically connected with the main control unit, which is used for emitting light of different colors.

6. The centrally supplied concentrated fluid switchable hemodialysis device according to claim 2, characterized in that The blood dialysis device with switchable concentrated liquid supply comprises a sound reminding unit electrically connected with the main control unit, which is used for emitting a reminding sound.

7. The centrally supplied concentrate switchable hemodialysis device according to claim 1, characterized in that The pump connecting pipe is detachably connected with the three-way regulating valve. The suction rod pipe is detachably connected with the three-way regulating valve. The concentrated liquid supply pipe is detachably connected with the three-way regulating valve.

8. The centrally supplied concentrated fluid switchable hemodialysis device according to claim 1, characterized in that The concentrated liquid supply pipe comprises a first circulating pipe, a second circulating pipe and a supply pipe, one end of the first circulating pipe is used for connecting a concentrated liquid supply storage barrel, one end of the second circulating pipe is used for connecting the concentrated liquid supply storage barrel, and one end of the supply pipe is connected with the three-way regulating valve. The other end of the first circulating pipe, the other end of the second circulating pipe and the other end of the supply pipe are communicated.

9. The centrally supplied concentrate switchable hemodialysis device according to claim 5, characterized in that The light reminding unit is a warning light or a display screen.

10. The centrally supplied concentrated fluid switchable hemodialysis device according to claim 6, characterized in that The sound reminding unit is a buzzer or a loudspeaker.

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