CN109966577A - A kind of haemodialysis/filtering device and its implementation - Google Patents
A kind of haemodialysis/filtering device and its implementation Download PDFInfo
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- CN109966577A CN109966577A CN201910240759.XA CN201910240759A CN109966577A CN 109966577 A CN109966577 A CN 109966577A CN 201910240759 A CN201910240759 A CN 201910240759A CN 109966577 A CN109966577 A CN 109966577A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
- A61M1/1601—Control or regulation
- A61M1/1603—Regulation parameters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
- A61M1/1621—Constructional aspects thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
- A61M1/1654—Dialysates therefor
- A61M1/1656—Apparatus for preparing dialysates
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
- A61M1/3621—Extra-corporeal blood circuits
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
- A61M1/3621—Extra-corporeal blood circuits
- A61M1/3627—Degassing devices; Buffer reservoirs; Drip chambers; Blood filters
- A61M1/3633—Blood component filters, e.g. leukocyte filters
- A61M1/3635—Constructional details
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
- A61M1/3621—Extra-corporeal blood circuits
- A61M1/3663—Flow rate transducers; Flow integrators
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/75—General characteristics of the apparatus with filters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Abstract
The present invention discloses a kind of haemodialysis/filtering device and its implementation, supply back liquid access, reverse osmosis water feed liquor degasification access and concentrate to match liquid access, dialyzate static mixing access etc. by constant pressure balance and forms.Under motor driven, fresh dialysis fluid waste liquid flow equilibrium is realized.Supplying back liquid access to be equipped with pressure regulator in the constant pressure balance of dialyzate disengaging dialyzer makes pressure well-balanced adjustment, under same motor driven, separately design the output quantity for measuring and calculating waste drains pump, the dialysis liquid pump and every chamber of concentrate liquid pump/turn, reach normal dialysis liquid electrolyte ion concentration, and dialyzate inlet is consistent with waste liquid, due to it is this based on every chamber/amount that turns makes the proportion of reverse osmosis water and concentrate, reach normal dialysis liquid electrolyte ion concentration.Technical solution of the present invention has many advantages, such as that continuously linear, precisely configuration, pressure is stable, safe and reliable, real time monitoring is, it can be achieved that continuous liquid supply free of discontinuities, water circuit system pressure are constant, with liquid is accurate and flow facilitate it is controllable.
Description
Technical field
The present invention relates to blood purification technology field, in particular to a kind of haemodialysis/filtering device and its implementation.
Background technique
The hemodialysis treatment system (referring to Fig. 6) of the prior art is usually by blood circuit and dialysis fluid circuit group
At the joint in two circuits is in dialyzer, and wherein blood circuit is penetrated in human vas using puncture needle, then passes through dialysis
Puncture needle is connected by pipeline with blood pump, draws blood from patient's body under the driving effect of blood pump, the blood room through dialyzer
After return to patient's body and form circulation loop；Dialysis fluid circuit then utilizes corresponding dialysis apparatus, controllable in flow
In the case where, configured normal dialysis liquid is introduced in the dialysis fluid chamber of dialyzer, since blood and dialyzate are being dialysed
Isotonic mass exchange occurs in device, the dialyzate (also referred to as waste liquid) after exchanging is brought out dialyzer and is back to dialysis dress
In setting.At the same time, dialysis treatment mainly includes three purposes, and first is the lps molecule substance for extracting patient's body accumulation,
Second goes out to remain in the excessive moisture of patient's body for ultrafiltration, and third is the treatment by four hours to correct in blood samples of patients
The electrolyte concentration of disorder.
In addition, the amount for entering to the dialyzate in dialyzer must be consistent with the amount of solution extracted out from dialyzer, otherwise will
Will appear more super, few super setting and surpass in reverse phenomenon, wherein it is more it is super refer to patient's body moisture content is extracted in therapeutic process too much, it is few super
Then refer in therapeutic process and less extract moisture content from patient's body, surpasses in reverse, refer in therapeutic process not only not from patient's body
Interior extraction moisture content, pours into patient's body for solution instead, and surpasses in reverse and will cause serious medical accident.
In the hemodialysis apparatus of the prior art, the production of German company Fresenius " 4008-B type haemodialysis control unit is
With the dialysis apparatus of counter balance pocket capacitance balance, what which used 27 electromagnetic valve bodies, 8 pump housings, 6 pressure sensors, 4
A float liquid level sensor, 2 temperature sensors, 3 conductances and sterilant sensor etc., and had altogether at least on the access of water route
51 electric components are used, so that the equipment has used the non-automatically controlled mechanical part of substantial amounts, so that hemodialysis
The volume of machine is more huge.
German Fresenius company has applied for European Union's patent of invention on June 18th, 2001, which is EP 1
163 917 A1, and entitled " the Dialysevorrichtung mit einer Ausgleichskammer of the patent
Und Verfahren zum Betreiben der Dialysevorrichtung ", in addition Japanese Nipro Corp
Chinese invention patent " haemodialysis equipment " is applied on June 21st, 2011, Publication No. CN102958547A, there are also Chongqing
The mountain Shan Wai Science and Technology Ltd. has applied for Chinese invention patent on May 25th, 2011, and " a kind of haemodialysis level sensing is flat
Weigh device ", Publication No. " CN102068722A ".
4008 type hemo systems of Fresenius company and above-mentioned three patents, it can be seen that used by this three company
Technical solution is the principle art with liquid and counter balance pocket balance feed flow.Hemodialysis is by dialyzer, and dialyzer is
The circulation loop that blood samples of patients flows through, when dialyzate passes in and out dialyzer, inlet and discharge must at least be balanced, otherwise,
Inlet is greater than discharge, and the moisture content having more will enter human body and cause the accidents such as patient's heart failure；Enter conversely, discharge is greater than
Amount, when surmounting ultrafiltration volume, patient is then dehydrated, and malpractice can be directed at by going out when serious.
Therefore, the above-mentioned prior art based on balance cavity configuration, realizes the flow equilibrium of dialyzate disengaging dialyzer, and puts down
Weighing apparatus cavity configuration is simultaneously uncomplicated, is that cavity is divided into two spaces to elastic diaphragm in a cavity, one of space enters
Liquid, another space squeeze liquid cocurrent and go out, and the fluid flow for flowing into and out cavity in this way is equal, based on the above principles, makes
The flow equilibrium of dialyzate disengaging dialyzer.Existing product or patent, based on the equipment of balance cavity configuration, usually using two
Balance cavity alternates work, and the intake-outlet in two balance four spaces of cavity is controlled using eight solenoid valves,
Eight solenoid valves of two balance cavitys each other open and turn off by logic, and needs two gear-driven pumps and its overflow mechanism
Synchronous working, and two gear-driven pumps keep continuous liquid supply by overflow, and use the Push And Release of balance cavity solenoid
Time controls flow, to reach such as conventional hemodialysis dialyzate 500 milliliters of flow per minute.It is being based on this 500ml/
On the basis of min flow, the proportional quantities of A/B dialysis concentrate is calculated with A/B pump, controls two A/B pump dialysis concentrates
Given amounts, then make with reverse osmosis water the dialyzate of standard.Therefore it will be seen that reverse osmosis water flow and A/B concentration
Flow quantity is two relatively independent running systems, and there is no the associations of the ratio of every chamber output quantity to drive with same driving source with synchronous
Dynamic corresponding construction, if reverse osmosis water flow changes, A/B concentrated solution discharge will be recalculated, it will lead to conductance
Larger fluctuation occurs for rate.Flow is prepared based on the dialyzate on the basis of counter balance pocket, is that can not accomplish that dialysate flow is linearly adjustable,
In addition existing dialysis machine, other than the structure setting of above-mentioned complexity, it is necessary to be equipped with the voltage-controlled system of depassing unit, water circuit system,
The a large amount of sensor such as temperature and conductance control, to guarantee that equipment safety operates.Therefore the dialysis machine based on counter balance pocket principle is deposited
Structure is complicated, cost is high, wrong report frequently, operating difficulties and maintenance cost are high the disadvantages of or deficiency.
Summary of the invention
The main object of the present invention is to propose a kind of continuously linear, precisely configuration, stable, safe and reliable, the real-time prison of pressure
Haemodialysis/the filtering device and its implementation of control, it is intended to realize haemodialysis/filtering device continuous liquid supply free of discontinuities, water
System pressure in road is constant, with liquid is accurate and flow facilitate it is controllable.
To achieve the above object, a kind of haemodialysis/filtering device proposed by the present invention, including it is internal equipped with blood room and saturating
The dialyzer of liquid chamber is analysed, the blood room is connected by blood vessel with user's blood vessel, the inlet and dialyzate of the dialysis fluid chamber
The liquid outlet of pump is connected, and the liquid outlet of the dialysis fluid chamber is connected with the inlet of waste drains pump, the inlet tube of the dialysis liquid pump
It is connected with the outlet tube of several concentrate pumps, the dialysis liquid pump, the waste drains pump and the concentrate pump pass through motor
Driving, reverse osmosis water and several concentrate be thoroughly mixed to form normal dialysis liquid and in the dialysis fluid chamber with the blood room
Blood with the isotonic exchange of substance, finally extract discharge outward through the waste drains pump.
Preferably, the dialysis liquid pump, the waste drains pump and the concentrate pump are card slot pump, the card slot pump packet
Include the internal pump case for being equipped with accommodation space and the internal rotor for being set to the pump case, the internal rotor outer peripheral surface with it is described
Slot between being formed between pump case inner peripheral surface, the internal rotor outer peripheral surface are axially arranged with several propulsive liquid parts and revolve with the internal rotor
Turn, the propulsive liquid part outer peripheral surface be bonded the internal rotor outer peripheral surface and the pump case inner peripheral surface be divided into slot between will be described it is several
Separate space, the pump case inner peripheral surface is equipped with blocking solution part and propulsive liquid part cooperation generates negative pressure inhalation solution or generates high pressure
Extrusion solution, the blocking solution part radially opposite sides are equipped with inlet and liquid outlet across the pump case.
Preferably, in the internal rotor of the dialysis liquid pump, the waste drains pump and several concentrate pumps
Mandrel is successively axially connected and is rotated by same motor driven；Or the dialysis liquid pump, the waste drains pump and several described in
The central axis of the internal rotor of concentrate pump is respectively by different motor drivens；Or the dialysis liquid pump, the waste drains pump with
And several described concentrate pumps are axially connected in any combination and by different motor drivens.
Preferably, the water inlet initial end of the dialysis liquid pump is equipped with inlet valve control water inlet, and the inlet valve water outlet is also
It is sequentially connected heater, thin footpath mouth pipe and circulation degassing pump, the outlet end and the left side inside water storage tank of the circulation degassing pump
Bottom of chamber portion leads to, and gap is equipped at the top of the left chamber, and reverse osmosis water can enter right chamber through gap, be equipped with inside the right chamber
Water-level float, the left chamber side are led to circulation pipe one end, another section of circulation pipe and the heater and the thin footpath mouth
Pipeline leads between pipe, and the right chamber bottom also passes through pipeline and leads to precision flow regluating valve.
Preferably, the inlet tube of the dialysis liquid pump and every kind of concentrate converge position and are equipped with mixed room, the mixing
Between water outlet be connected with static mixer.
Preferably, the liquid outlet of the dialysis liquid pump is connected with the inlet in the upper space of pressure regulator, upper space
Liquid outlet is connected with the inlet of the dialysis fluid chamber, the feed liquor of the down space of the liquid outlet and pressure regulator of the waste drains pump
Mouth is connected, and the liquid outlet of down space is connected with the external world；Elastic diaphragm, pressure regulator are axially arranged with inside the pressure regulator
Inner radial is equipped with spoiler and is connected through elastic diaphragm and with elastic diaphragm sealing, the upper space and the down space it is molten
Liquid stream is moved contrary, and the upper and lower part of spoiler prevents water flow from flowing and generates wallowing motion and drive elastic diaphragm elastic
Deformation.
Preferably, the pressure regulator pipeline that is connected with the dialyzer leads to the conductivity having for monitoring dialyzate
With the conductivity meter of temperature, the conductivity meter inside is equipped with conductance portion and temperature portion；The conductivity meter and the dialyzate
Room inlet is connected pipeline equipped with dialysis solenoid valve, dialyses and is additionally provided with shunt valve and the waste liquid between solenoid valve and conductivity meter
It pumps inlet tube to be connected, bypass valve is equipped with inside shunt valve, conductivity meter detects conductivity of dialysate and temperature value is in improper
When being worth range, dialysis solenoid valve is closed and bypass valve is opened, and dialyzate flows into the inlet tube of waste drains pump through shunt valve.
Preferably, several described concentrate pumps pass through pipeline and the internal concentration for being equipped with several mutually independent sap cavities
Sap cavity leads to, and is connected respectively by pipeline with independent solenoid valve at the top of each sap cavity, the outlet end convergence of several solenoid valves
And be connected with aspiration pump, the outlet end of aspiration pump is connected with the external world, the pipeline that the sap cavity bottom is connected with the concentrate pump
Interior to be equipped with precision flow regluating valve, each sap cavity side is equipped with pipeline and is connected with concentrate bucket.
The invention also provides a kind of implementation methods using the haemodialysis/filtering device, comprising the following steps:
S1: reverse osmosis water source enters in heater through inlet valve to be heated, pass through thin footpath mouth pipe and circulation degassing pump into
Enter in the left chamber of water storage tank, reverse osmosis water can enter in the right chamber of water storage tank through overflow port at the top of left chamber and make on water-level float
It rises, inlet valve is closed when water-level float rises to highest order, micro sky when reverse osmosis water is overflowed from left chamber to right chamber, in reverse osmosis water
Gas escapes and is emitted into outside through water storage tank external pipe, and left chamber part solution is back to thin footpath mouth pipe input end through pipeline, warp
Thin footpath mouth pipe and circulation degassing pump are again introduced into left chamber, flow through precision flow regluating valve described in the reverse osmosis water in right chamber
It is precisely controlled flow；
S2: the solenoid valve for being set to the sap cavity top is opened, and the pumping pump work simultaneously generates negative pressure to dense in sap cavity
Contracting liquid adsorbs upwards, and the concentrate being stored in liquid bucket is adsorbed upwards and entered in sap cavity by the pipeline of sap cavity side, sap cavity
When interior liquid level float rises to highest order, solenoid valve is closed and aspiration pump stops working, and concentrate is through bottom pipe in sap cavity
And precision flow regluating valve is entered to, it then enters back into the concentrate pump, concentrate pump inputs concentrate through pipeline
It is mixed and fed into concentrate mixed room, then with reverse osmosis water to being sufficiently mixed in static mixer, multiple concentrate pumps are successively
The dilution that different concentrates are input to concentrate mixed room and reverse osmosis water further mixes to be incorporated in static mixer abundant
It is mixed to form normal dialysis liquid；
S3: normal dialysis liquid enters in the dialysis liquid pump through pipeline, then enters to the pressure regulator through pipeline
Upper space in, stopped and entered back into conductivity meter after generating certain choked flow by the spoiler, if the temperature of dialyzate
And conductivity is in critical field value, dialyzate is directly entered isotonic to the dialysis fluid chamber and user's blood generation substance
Exchange, then the liquid outlet through dialysis fluid chamber enter the pipeline being connected with the waste drains pump and enter in waste drains pump；
S4: if the temperature and conductivity of dialyzate are not in critical field value, the conductivity meter with it is described
The connected pipeline of dialysis fluid chamber is closed by the dialysis solenoid valve, then is entered and institute through the shunt valve and the bypass valve
It states the connected pipeline of waste drains pump and enters in waste drains pump；
S5: dialysis waste liquid or the solution entered in the waste drains pump through the bypass valve enter to the pressure by pipeline
In the down space of draught control mechanism, choked flow is generated through spoiler；Waste liquid and dialyzate flow on the contrary, the top of spoiler is under
Portion is swung towards different directions respectively, and the elastic diaphragm occurs flexible deformation and guarantees the upper space and down space flow velocity and flow
Identical, solution flows out down space again and discharges outward.
Technical solution of the present invention has the advantage that compared with the prior art
(1) continuously linear.Dialysis liquid pump, waste drains pump and each concentrate pump of technical solution of the present invention are all using card
Slot pump configuration replaces absorbent solution and/or extrusion solution by slot between multiple sons inside card slot pump, makes the output of solution in company
Continue and linearly transmitted, can effectively avoid in this way and blood carries out generating biggish pressure change in the isotonic exchange process of substance
Change and the uncomfortable of user is caused to answer.
(2) precisely configuration.In technical solution of the present invention, the central axis of dialysis liquid pump, waste drains pump and concentrate pump is successively
It is connected and is driven by the same motor, therefore prepares the normal dialysis liquid and waste liquid formed by dialysis liquid pump and concentrate pump
The amount of solution for pumping output is identical, and the safety of dialysis procedure can be guaranteed by precisely preparing solution.In addition, technical solution of the present invention is also
It is connected precision flow regluating valve by the liquid outlet in the sap cavity for storing concentrate to be precisely controlled flow.
(3) pressure is stablized.Technical solution of the present invention passes through bullet by setting pressure regulator inside pressure regulator
Property diaphragm separate, spoiler is connected and swingable with elastic diaphragm, and dialyzate enters in space to be stopped by spoiler top
And generate resistance, and waste liquid of dialysing enters in down space and generates resistance by spoiler lower barrier, due to dialyzate and
Waste liquid flow direction of dialysing is opposite, thus by the upper and lower part of spoiler occur different directions swing and with dynamic elasticity every
Film flexible deformation, the pressure for making dialyzate between waste liquid of dialysing reach balance as far as possible, are further ensured that the safety of dialysis procedure
Reliability.
(4) safe and reliable.Technical solution of the present invention passes through electricity by the way that conductivity meter is arranged in the front end for entering dialysis fluid chamber
Conductance meter precisely monitors the temperature and conductivity of normal dialysis liquid, be directly entered if meeting in corresponding range if dialyzate to
In dialysis fluid chamber, close the valve into dialysis fluid chamber if dialyzate does not meet corresponding range and be bypassed to
In waste drains pump, it can not only guarantee the comfort of user's dialysis procedure in this way and guarantee that dialysis procedure is secure and reliable.In addition
Technical solution of the present invention passes through reverse osmosis water by flowing through water storage tank before reverse osmosis water is mixed with other concentrates
Overflow flowing between left chamber to right chamber, make to be dissolved in micro-air in solution originally and be precipitated, then by circulation degassing pump and
Reverse osmosis water is continuously extracted out and is delivered to left chamber again by circulation pipe, can further improve the complete of micro-air precipitation
Property, the final safety and reliability for guaranteeing dialyzate.
(5) it monitors in real time.Technical solution of the present invention passes through in the water inlet position that dialysis liquid pump is connected with upper space upper right side
First pressure monitoring has been installed, and the water inlet position that waste drains pump is connected with down space lower-left end is monitored equipped with second pressure, because
This can monitor pressure range in real time to guarantee functional reliability.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is haemodialysis of the embodiment of the present invention/filtering device structural schematic diagram；
Fig. 2 is the structural schematic diagram of card slot of embodiment of the present invention pump；
Fig. 3 is the schematic diagram of internal structure of card slot of embodiment of the present invention pump；
Fig. 4 is the structural schematic diagram of pressure regulator of the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of another embodiment of the present invention pressure regulator；
Fig. 6 is that the structure of the hemodialysis treatment system of the prior art is shown.
Drawing reference numeral explanation:
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
The present invention proposes a kind of haemodialysis/filtering device.
Blood room and dialysis are equipped with to Fig. 4, haemodialysis/filtering device of the embodiment of the present invention, including inside referring to Figure 1
The dialyzer 70 of liquid chamber, blood room are connected by blood vessel with user's blood vessel, the inlet of dialysis fluid chamber and going out for dialysis liquid pump 28
Liquid mouth is connected, and the liquid outlet of dialysis fluid chamber is connected with the inlet of waste drains pump 38, the inlet tube and A concentrate pump of liquid pump 28 of dialysing
19 are connected with the outlet tube of B concentrate pump 22, dialyse liquid pump 28, waste drains pump 38, A concentrate pump 19 and B concentrate pump 22
Central axis is sequentially connected and passes through the same motor 39 and driven, and reverse osmosis water is sufficiently mixed with A concentrate and B concentrate
Normal dialysis liquid and in exchanging in dialysis fluid chamber with the blood of blood room with substance is isotonic is formed afterwards, is finally taken out outward through waste drains pump 38
Take discharge.
Refer to Fig. 2 to Fig. 3, the dialysis liquid pump 28, waste drains pump 38, A concentrate pump 19 and B concentrate pump of the present embodiment
22 uses are all card slot pump configurations, and wherein card slot pump 8 mainly includes pump case 81 and is set to interior inside pump case 81
Rotor 82, being formed between 81 inner hole circumferential surface of pump case and 82 outer peripheral surface of internal rotor can be used for accommodating slot between solution, therefore in reality
In the application process of border, every chamber of card slot pump/turn defeated can be adjusted by selecting various sizes of pump case 81 and internal rotor 82
Output.In addition 82 periphery of internal rotor of the card slot pump of the present embodiment, which faces out, is symmetrically arranged with two propulsive liquid parts 821, therefore passes through two
Slot can be divided into slot between the son of two mutually independent storage solutions by a propulsive liquid part 821, and in 81 inner peripheral surface of pump case
Equipped with can elastics wing restore hinder slot structure 83, and can restore hinder slot structure be equipped with blocking solution part 831, therefore work as propulsive liquid part
821 with internal rotor 82 when rotating, and the space of slot constantly reduces between the son between one of propulsive liquid part 821 and blocking solution part 831, stores up
The solution between the son in slot space is stored in be extruded and discharge from liquid outlet 85.When propulsive liquid part 821 and blocking solution part 831 occur
After collision, swing by blocking solution part 831 generating and allow bit space, therefore propulsive liquid part 821 can pass through blocking solution part
831, and the propulsive liquid part 821 is constantly increased and will be another molten by negative pressure by slot space between the son after the blocking solution part 831
Liquid is sucked from inlet 84 into slot.Therefore by above-mentioned workflow, make card slot pump to solution with it is continuous and linearly into
Row conveying.
In other embodiments of the invention, propulsive liquid part 821 and/or blocking solution part 831 are resilient movement component, specifically,
82 outer peripheral surface of internal rotor and/or 81 inner peripheral surface of pump case are equipped with groove and accommodate propulsive liquid part 821 or blocking solution part 831 respectively, in groove
Equipped with elastomeric element, by propulsive liquid part 821 and blocking solution part 831, elasticity is released outward, groove ends width be less than propulsive liquid part 821 and/or
Slot Ring Width between the radical length of slot is equal between 831 radius of blocking solution part, propulsive liquid part 821 and/or blocking solution part 831 stretch out, wherein
The central axial of internal rotor 82 is equipped with shaft, and shaft can one end stretch out the both ends of pump case 81 or shaft to stretch out pump simultaneously outer
Outside shell 81, and shaft and the mutually matched position of pump case 81 can be equipped with sealing ring to improve sealing performance.It is pushed away to realize
Liquid part 821 preferably push to solution or blocking solution part 831 more preferably blocks, by setting small for the end portion width of groove
In propulsive liquid part 821 and/or the radius of blocking solution part 831, and propulsive liquid part 821 and/or blocking solution part 831 stretch out between slot radical length
Equal to a slot Ring Width.Propulsive liquid part 821 is axial from rotation member, and blocking solution part 831 be can the mobile cylindrical body of resilient radial,
81 inner peripheral surface of pump case is equipped with groove and accommodates spring for 831 elastic ejection of blocking solution part and mutually touch with the cooperation of propulsive liquid part 821.
Preferably, in order to further increase propulsive liquid part 821 to the impetus power of solution and close between 81 inner peripheral surface of pump case
Sealing property can will be sealed by the line way of contact between 81 inner peripheral surface of propulsive liquid part 821 and pump case or be sealed in a manner of face contact.
In other embodiments of the invention, blocking solution part 831 is several and at least one, and propulsive liquid part 821 is at least
For one and it is circumferential be uniformly arranged, and each 831 two sides of blocking solution part are respectively arranged with inlet and liquid outlet, by by several
831 two sides of blocking solution part are respectively equipped with inlet and liquid outlet, and inlet passes through input duct respectively and leads to feed-containing vessel, out liquid
Mouth is detachably connected with dialyzate pipeline respectively by liquid outlet pipe respectively, after solution enters to a slot from input duct, is pushed away
Liquid part 821 pushes and gradually generates high pressure with 831 opposing compression of blocking solution part, flows through institute's liquid outlet pipe then at liquid outlet and concentrates flow direction
Mixing in dialyzate pipeline, wherein whole liquid outlet pipes are led to dialyzate pipeline simultaneously, card slot pump is full flow operating condition, and portion
Point liquid outlet pipe is led to dialyzate pipeline, and after another part liquid outlet pipe is separated with dialyzate pipeline, then with input duct
Lead to, be back in input duct again in slot between part solution enters, card slot pump is non-full flow operating condition.
In another embodiment of the invention, propulsive liquid part 821 is several cards for being uniformly arranged on 82 outer peripheral surface of internal rotor
Plate, blocking solution part 831 are to be set to axial from rotation member in 81 groove of pump case, and 831 outer peripheral surface circumferential direction equalization of blocking solution part is equipped with
Several stretching baffles, baffle, which is protruded into a slot and pushed by propulsive liquid part 821, to be rotated.When card slot pump is acted, propulsive liquid part 821 is logical
When crossing blocking solution part 831, by the promotion baffle of propulsive liquid part 821 so that blocking solution part 831 is rotated around center axis thereof, such propulsive liquid
Dislocation space is generated between part 821 and blocking solution part 831, propulsive liquid part 821 may make to be smoothly through blocking solution part 831 in this way.Separately
Outside since 831 outer peripheral surface of blocking solution part is averagely equipped with several baffles, baffle is rotated by a certain angle by the promotion of propulsive liquid part 821
Afterwards, a next baffle then prepares to carry out touching swing with next propulsive liquid part 821, and before the two is touched
Discharge the solution in a slot by liquid outlet.As in imbibing step, between existing between propulsive liquid part 821 and baffle
Slot space increases, therefore solution can be absorbed into it by negative pressure.
Referring to Figure 1, every chamber of the present embodiment/transfer output refers to each circle rotation in the motor unit time, from the pump housing
In output liquid unit quantity, in order to make to dialyse liquid pump 28 and waste drains pump 38 every chamber/transfer that output is identical, the present embodiment it is saturating
Analysis liquid pump 28 and waste drains pump 38 driven by the motor driving shaft 39a of the same motor 39, so that dialyzate it is defeated
It is identical with the extracted amount of waste liquid to enter amount, the comfort of user's dialysis procedure can be effectively improved and avoid pressure oscillation excessive and draw
Send out malpractice.
Since dialyzate is to be formed by reverse osmosis water, A concentrate and B concentrate according to certain proportion, this
Every chamber/the every chamber for transferring output, B concentrate pump 22/of the A concentrate pump 19 of embodiment transfers output and reverse osmosis water water withdrawal
Formation is prepared in proportion, and three kinds of liquid mixing reach the electrolyte ion concentration of normal dialysis liquid, and the mixed amount of three is
Every chamber of dialysis liquid pump 28/transfer output.
For the water for the reverse osmosis water that liquid pump 28 extracts of guaranteeing to dialyse and the accurate preparation of A concentrate and B concentrate,
Delicate flow tune is provided in the first pipe 13 of the bottom right chamber 9b of water storage tank 10 and between the first static mixer 20
Valve 14 is saved, the water of the dialysis extraction of liquid pump 28 can be finely tuned by precision flow regluating valve 14 and makes up because of pump body design or adds
Fabrication error present in work manufacturing process.
Reverse osmosis water enters to A liquid mixed room 16 by water storage tank 10 and precision flow regluating valve 14, at the same time,
A concentrate also pass through third pipeline 17 enter in A liquid mixed room 16 pass through the 4th pipeline 18 jointly with reverse osmosis water and the
One static mixer 20 is uniformly mixed and forms A dilution, and in addition B concentrate enters B liquid by the 5th pipeline 21 and mixes
23 converge with A dilution between conjunction, then enter in the second static mixer 25 and are uniformly mixed using the 6th pipeline 24
Merging forms dialyzate, eventually passes through the 7th pipeline 26 and enters in dialysis liquid pump 28.From above-mentioned structure setting, we can be with
Know, in other embodiments of the invention, by the way that the one or more of pipelines for conveying different concentrates respectively and master is arranged
Pipeline is connected, and can be realized different concentrate and reverse osmosis water carrying out mixed diluting, and ultimately form various concentration or
Different types of dialyzate is to meet different use demands.
In the present embodiment, to make A concentrate pump 19 and B concentrate pump 22 quantitatively extract concentration to A/B sap cavity 50 respectively
Liquid, the present embodiment inside A/B sap cavity 50 by being respectively arranged with mutually independent A sap cavity 51a and B sap cavity 51b, and A liquid
Chamber 51a is provided with A liquid level float 52a, B sap cavity 51b and is provided with B liquid level float 52b, in addition at the top of A sap cavity 51a by pipeline with
First solenoid valve 53 is connected, and is connected by pipeline with second solenoid valve 54 at the top of B sap cavity 51b, then the first solenoid valve 53 and the
Two solenoid valves 54 are connected by common pipeline with aspiration pump 43 again to interlink with ambient atmosphere.In addition the bottom of A sap cavity 51a
It is connected by pipeline with the first precision flow regluating valve 46, then the first precision flow regluating valve 46 is concentrated by pipeline and A again
The water inlet of liquid pump 19 is connected, and the bottom of B sap cavity 51b is connected by pipeline with the second precision flow regluating valve 47, and then second
Precision flow regluating valve 47 is connected by pipeline with the water inlet of B concentrate pump 22 again, therefore is adjusted by the first delicate flow
Valve 46 and the second precision flow regluating valve 47 can finely tune A concentrate pump 19 and 22 liquid-taken amount of B concentrate pump to make up the pump housing
Fabrication error.Wherein A sap cavity 51a and B the sap cavity 51b of A/B sap cavity 50 generates negative pressure by aspiration pump 43 in preliminary filling solution,
At the same time, all in opening state, A sap cavity 51a passes through A liquid delivery pipe 48a from A for the first solenoid valve 53 and second solenoid valve 54
A concentrate is drawn upwards and is entered in A sap cavity 51a in liquid bucket 41, and B sap cavity 51b passes through B liquid delivery pipe 48b from B liquid bucket
B concentrate is drawn upwards and is entered in B sap cavity 51b in 40, when A liquid level float 52a and B liquid level float 52b floats respectively
When to extreme higher position, the first solenoid valve 53 and second solenoid valve 54 are closed, and aspiration pump is also at pause mode.
In addition, the A concentrate pump 19 of the present embodiment and B concentrate pump 22 synchronize drive via unified driving source motor 39
It is dynamic, due to A concentrate pump 19 and every chamber of B concentrate pump 22/turn output quantity it is associated with reverse osmosis water, three kinds of mixed liquors
Amount be the every chamber of liquid pump 28/transfer output of dialysing, the dialyzate electricity of standard can be formed after the mixing of three's amount of being sufficiently mixed
Solve matter ion concentration.Such as Fig. 5, in other embodiments of the invention, dialysis liquid pump 28, waste drains pump 38 and several concentrates
The central axis of the internal rotor 82 of pump is driven by different motors 39 respectively.In other embodiments of the invention, dialyse liquid pump 28,
Waste drains pump 38 and several concentrate pumps are axially connected in any combination and are driven by different motors 39.
The dialyzate pipeline portions structure of the present embodiment is mainly made of feed flow access and time liquid access, and the blood of user
Mainly it is pressed by artery pot 74a to dialyzer 70 by blood pump pressurization, thus in the blood room of dialyzer 70, from
And blood is made to form certain pressure, i.e. transmembrane pressure hollow fiber internal pressure power in the blood room of dialyzer.In order to enable by saturating
The fluid pressure and transmembrane pressure hollow fiber internal pressure power that the confession that analysis liquid pump 28 and waste drains pump 38 collectively constitute is returned in liquid access are kept
It is relative constant, it is therefore desirable to the pressure for supplying back liquid access accordingly be controlled by pressure regulator.
Specifically, refer to Fig. 2 and Fig. 4,30 internal cavity of pressure regulator of the present embodiment by using an elasticity every
Internal cavity space is divided into upper space 30a and down space 30b by film 31, and upper space 30a and down space 30b are respectively set
Have inlet and outlet, at the same time, be additionally provided with inside pressure regulator 30 spoiler 30c or more run through elastic diaphragm 31 and
Sealing is connected, axis centered on wherein spoiler 30c can intersect the cross spider being connected with elastic diaphragm 31 with it, spoiler 30c
Upper and lower end parts synchronize swing in upper space 30a and down space 30b respectively to stablize in upper space 30a and down space 30b
Portion's pressure.Preferably, the water inlet position that dialysis liquid pump 28 is connected with upper space 30b upper right side is equipped with first pressure and monitors 29a,
And the water inlet position that waste drains pump 38 is connected with the lower-left down space 30b end is equipped with second pressure and monitors 29b.When dialysis liquid pump 28 will
Dialyzate is advanced into inside supreme space 30a from water inlet end, and dialyzate can generate certain resistance after encountering the top of spoiler 30c
Then power enters back into so that the flowing velocity of dialyzate will not be too fast to the dialysate chamber of dialyzer 70.Waste liquid at the same time
By the waste liquid after having dialysed, extraction is entered back into the lower space of pressure regulator 30 pump 38 outward inside dialyzer
30b, waste liquid can generate certain resistance after encountering the lower part of spoiler 30c, so that the outside flowing velocity of waste liquid will not be too fast.In addition
Since the spoiler 30c in upper space 30a generates resistance to dialyzate, and the spoiler 30c in down space 30b is to waste liquid
Resistance can be generated, therefore spoiler 30c rotates with certain angle, elastic diaphragm 31 can also occur centainly to deform, and then can have
Effect adjusts the amount that dialyzate enters inside dialyzer 70 and the amount that waste liquid leaves inside dialyzer 70 reaches equilibrium state.
In order to accurately monitor the conductivity and temperature of dialyzate, the present embodiment passes through in pressure regulator and dialyzer
Between conductivity meter 32 is set, and conductivity meter 32 is internally provided with conductance portion 32a and temperature portion 32b, when dialyzate passes through
Conductance portion 32a and temperature portion 32b and when meeting in preset range value, then dialyzate can by dialysis solenoid valve 33 and smoothly into
Enter to the dialysate chamber of dialyzer.However, when dialyzate is beyond or below corresponding conductivity and temperature preset range value,
Bypass valve 34 then is opened by closing dialysis solenoid valve 33, so that dialyzate cannot pass through dialysis solenoid valve 33 and enter
To dialysate chamber, but pass through bypass valve 34 and flowing through bypass into the pipeline being connected with waste drains pump 38 and be directly entered to
In waste drains pump 38.Preferably, be the use reliability for further increasing reverse osmosis water, the present embodiment by 32 body of conductivity with
High efficiency particulate air filter 75 is set between dialysis fluid chamber.Further to control into the dialysate flow in dialysate chamber, the present embodiment
By being equipped with bypass in the outlet end of high efficiency particulate air filter 75 and being sequentially connected third solenoid valve 35 and peristaltic pump 72.
In order to improve the safety in utilization of dialyzate, the present embodiment is connected with heating by the inlet pipeline in reverse osmosis water
Device 3, by heating to reverse osmosis water, the dialyzate that enables to be mixed with other solution and be formed maintains as far as possible
Human body temperature carries out also can be avoided dialyzate in dialysis procedure in this way with blood of human body and blood occurs excessive heat and hands over
It changes and makes body temperature lowering.In addition it has been sequentially connected thin footpath mouth pipe 5 and circulation degassing pump 6 in the output end of heater 3, and recycled
The output end of degassing pump 6 is connected with the left chamber 9a inside water storage tank 10, and right chamber 9b and left chamber 9a are additionally provided with inside water storage tank 10
It is arranged side by side, water body can be through top opening overflow to right chamber 9b inside left chamber 9a, and right chamber top is equipped with water-level float 12 can be with water
Position height is gone up and down, and the water inlet end of heater 3 is equipped with inlet valve 2 and controls reverse osmosis water inflow and work with water-level float 12
Highly relevant, 10 top of water storage tank is also connected with second pipe 15 and excludes the micro-air that reverse osmosis water overflows outward.
Specifically, a water-level float 12 is provided at the top of the right chamber 9b of the water storage tank 10 for storing reverse osmosis water to control
Liquid level inside right chamber 9b, when reverse osmosis water is after first pipe 13 discharges liquid, water-level float 12 is correspondingly
Decline, and at this moment inlet valve 2 is opened, and reverse osmosis water enters under the suction function of circulation degassing pump 6 by thin footpath mouth pipe 5
To left chamber 9a, then reverse osmosis water passes through in left chamber 9a top exit overflow to right chamber 9b, so that in the generation of water-level float 12
It rises and resets, so that inlet valve 2 is closed, can be realized the feed liquor of reverse osmosis water by the above-mentioned course of work constantly recycled,
And can not inlet valve whether close, circulation degassing pump 6 be constantly in normal operating conditions, so that enter in left chamber 9a
Excessive reverse osmosis water enters in the pipeline between heater 3 and thin footpath mouth pipe 5 using circulation pipe 8, and reverse osmosis
Micro-air inside water can overflow during continuous flooding process or entrance right chamber 9b, and the micro-air can
It is discharged outward by the second pipe 15 at 10 top of water storage tank.
Referring to Figure 1 to 4, haemodialysis of the embodiment of the present invention/filtering device working principle are as follows:
Reverse osmosis water water source 1 enters to heater 3 and is internally heated by inlet valve 2, the reverse osmosis water after heating
By thin footpath mouth pipe 5 and circulation degassing pump 6, the left chamber 9a of water storage tank 10 is then entered to using circulation input channel 7
It is interior, it is constantly increased with the reverse osmosis water water level inside left chamber 9a and flows to right chamber 9b, reverse osmosis from the gap 11 at the top of left chamber 9a
To during right chamber 9b, the micro-air being dissolved in water body originally can also be precipitated and by the second of 10 top of water storage tank water flow
Pipeline 15 discharges, and in addition the side left chamber 9a is connected with the pipeline that circulation pipe 8 is connected between heater 3 and thin footpath mouth pipe 5,
And recycling degassing pump 6 is persistently to work, therefore can carry out continuing to be precipitated micro-air to reverse osmosis water, it is reverse osmosis to guarantee
The security reliability that water uses.Right chamber water-level float 12 is constantly increased and is moved up with right chamber 9b water level, then right chamber 9b
Interior reverse osmosis water enters in precision flow regluating valve 14 through first pipe 13, by precision flow regluating valve 14 to reverse osmosis
Permeable flow is precisely controlled.
At the same time, the first solenoid valve 53 and second solenoid valve 54 are opened, and aspiration pump 13 works and generates negative pressure, Jin Erke
Negative pressure is generated to A sap cavity 51a and B sap cavity 51b, the side sap cavity 51a A will be stored in the A in A liquid bucket 41 by A liquid delivery pipe 48a
Concentrate is sucked into A sap cavity 51a, and in addition the B being stored in B liquid bucket 40 is concentrated by B liquid delivery pipe 48b for the side B sap cavity 51b
Liquid is sucked into B sap cavity 51b, and the A concentrate in A sap cavity 51a enters to A concentrate by the first precision flow regluating valve 46
Pump 19 in, and the B concentrate of B sap cavity 51b pass through the second precision flow regluating valve 47 and enter in B concentrate pump 22.Place
It enters in A liquid mixed room 16 and is mixed with reverse osmosis water into third pipeline 17 excessively in the A concentrate of A concentrate pump 19,
Enter in the first static mixer 20 using the 4th pipeline 18 and is thoroughly mixed to form A dilution.B in B concentrate pump 22
Concentrate is entered in B liquid mixed room 23 and is mixed with A dilution by the 5th pipeline 21, is entered back into mixed to the second static state
The dialyzate of standard is sufficiently mixed and ultimately formed in clutch 25.
The dialyzate for mixing and being formed is entered to inside dialysis liquid pump 28 by the water inlet for liquid pump 28 of dialysing, then is gone out from it
Liquid pipe road 27 enters to the pipeline adjacent with pressure regulator 30 and enters in upper space 30a, after flowing through spoiler 30c, leads to
Piping enters in conductivity meter 32, after the conductance portion 32a of conductivity meter and temperature portion 32b, directly flows through piping
Enter to occurring in the dialysate chamber of dialyzer 70 with blood that substance is isotonic to be exchanged, and the dialyzate after exchanging then becomes waste liquid, passes through
It crosses the pipeline that is connected with waste drains pump 38 to be directly entered to waste drains pump 38, then the 9th pipeline 37a being connected with 38 outlet end of waste drains pump
And enter in the down space 30b of pressure regulator 30, since the flow direction of dialyzate and dialysis waste liquid is on the contrary, therefore choked flow
The upper and lower part collaboration of piece 30c swings and makes elastic diaphragm 31 that flexible deformation occur, so that upper space 30a and down space 30b
Flow velocity it is identical and flow is identical, then discharged outward through the tenth pipeline 37b again.In addition the present embodiment pass through waste drains pump 38 the
On eight pipeline 36a, it is equipped with ultrafiltrate pump 60 and ultrafilter 61, ultrafiltrate pump 60 can be treated according to patient to be needed, and is surpassed with preset value
Filter.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the design of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/it is used in it indirectly
He is included in scope of patent protection of the invention relevant technical field.
Claims (9)
1. a kind of haemodialysis/filtering device, which is characterized in that including the internal dialyzer for being equipped with blood room and dialysis fluid chamber, institute
It states blood room to be connected by blood vessel with user's blood vessel, the inlet of the dialysis fluid chamber is connected with the liquid outlet of dialysis liquid pump, institute
The liquid outlet for stating dialysis fluid chamber is connected with the inlet of waste drains pump, the inlet tube and several concentrate pumps of the dialysis liquid pump
Outlet tube be connected, the dialysis liquid pump, the waste drains pump and the concentrate pump pass through motor driven, reverse osmosis water with it is several
Kind of concentrate be thoroughly mixed to form normal dialysis liquid and in the dialysis fluid chamber with the blood of the blood room with the isotonic friendship of substance
It changes, finally extracts discharge outward through the waste drains pump.
2. haemodialysis/filtering device as described in claim 1, which is characterized in that the dialysis liquid pump, the waste drains pump with
And the concentrate pump is card slot pump, the card slot pump includes the internal pump case for being equipped with cavity and central axial setting
Internal rotor, forms slot between annular between the internal rotor outer peripheral surface and the cavity inner peripheral surface, the internal rotor outer peripheral surface is circumferential
Several propulsive liquid parts are uniformly provided with to rotate with the internal rotor, the propulsive liquid part be bonded the cavity inner peripheral surface with will it is described between
Slot is divided into several separate spaces, and the pump case inner peripheral surface is equipped with several blocking solution parts and propulsive liquid part cooperation generates negative pressure and inhales
Enter solution or generate high pressure extrusion solution, the pump case is equipped with inlet and liquid outlet, the inlet and the liquid outlet
With it is described between slot be connected, and be set to blocking solution part two sides.
3. haemodialysis/filtering device as claimed in claim 2, which is characterized in that the dialysis liquid pump, the waste drains pump with
And the central axis of the internal rotor of several concentrate pumps is successively axially connected and is rotated by same motor driven；Or institute
The central axis of the internal rotor of dialysis liquid pump, the waste drains pump and several concentrate pumps is stated respectively by different electricity
Machine driving；Or the dialysis liquid pump, the waste drains pump and several described concentrate pumps are axially connected in any combination
And by different motor drivens.
4. haemodialysis/filtering device as claimed in claim 3, which is characterized in that the water inlet initial end of the dialysis liquid pump
It controls and intakes equipped with inlet valve, the inlet valve water outlet is also sequentially connected heater, thin footpath mouth pipe and circulation degassing pump, institute
The outlet end and the left chamber bottom inside water storage tank for stating circulation degassing pump are led to, and gap is equipped at the top of the left chamber, reverse osmosis
Water can enter right chamber through gap, be equipped with water-level float inside the right chamber, the left chamber side is led to circulation pipe one end, followed
Pipeline leads between another section of endless tube and the heater and the thin footpath mouth pipe, and the right chamber bottom also passes through pipeline and essence
Close flow control valve leads to.
5. haemodialysis/filtering device as claimed in claim 4, which is characterized in that the inlet tube of the dialysis liquid pump and every
Kind concentrate converges position and is equipped with mixed room, and the water outlet of the mixed room is connected with static mixer.
6. haemodialysis/filtering device as claimed in claim 5, which is characterized in that the liquid outlet and pressure of the dialysis liquid pump
The inlet in the upper space of draught control mechanism is connected, and the liquid outlet in upper space is connected with the inlet of the dialysis fluid chamber, described useless
The inlet of the down space of the liquid outlet and pressure regulator of liquid pump is connected, and the liquid outlet of down space is connected with the external world；The pressure
Be axially arranged with elastic diaphragm inside draught control mechanism, pressure regulator inner radial be equipped with spoiler through elastic diaphragm and with elasticity
Diaphragm seal is connected, and the solution flow direction of the upper space and the down space is on the contrary, the upper and lower part of spoiler prevents
Water flow flows and generates wallowing motion and drive elastic diaphragm flexible deformation.
7. haemodialysis/filtering device as claimed in claim 6, which is characterized in that the pressure regulator and the dialysis
The connected pipeline of device leads to the conductivity meter for having conductivity and temperature for monitoring dialyzate, is equipped with electricity inside the conductivity meter
Lead portion and temperature portion；The conductivity meter is connected pipeline with the dialysis fluid chamber inlet equipped with dialysis solenoid valve, dialysis electromagnetism
It is additionally provided with shunt valve between valve and conductivity meter to be connected with the waste drains pump inlet tube, bypass valve is equipped with inside shunt valve, it is conductive
When rate meter detection conductivity of dialysate and temperature value are in outlier range, dialysis solenoid valve is closed and bypass valve is opened, thoroughly
Analyse the inlet tube that liquid flows into waste drains pump through shunt valve.
8. haemodialysis/filtering device as claimed in claim 7, which is characterized in that several described concentrate pumps pass through pipe
Road leads to the internal concentration sap cavity for being equipped with several mutually independent sap cavities, passes through pipeline and independence at the top of each sap cavity respectively
Solenoid valve be connected, the outlet ends of several solenoid valves, which is converged, to be simultaneously connected with aspiration pump, and the outlet end of aspiration pump is connected with the external world,
Precision flow regluating valve is equipped in the pipeline that the sap cavity bottom is connected with the concentrate pump, each sap cavity side is equipped with pipe
Road is connected with concentrate bucket.
9. a kind of implementation method using haemodialysis/filtering device as claimed in claim 8, which is characterized in that including following
Step:
S1: reverse osmosis water source enters in heater through inlet valve to be heated, and passes through thin footpath mouth pipe and circulation degassing pump enters storage
In the left chamber of water tank, reverse osmosis water can enter in the right chamber of water storage tank through overflow port at the top of left chamber and increase water-level float,
Inlet valve is closed when water-level float rises to highest order, micro-air when reverse osmosis water is overflowed from left chamber to right chamber, in reverse osmosis water
It escapes and is emitted into outside through water storage tank external pipe, left chamber part solution is back to thin footpath mouth pipe input end through pipeline, through thin
Diameter mouth pipe and circulation degassing pump are again introduced into left chamber, and precision flow regluating valve essence is flowed through described in the reverse osmosis water in right chamber
Quasi- control flow；
S2: the solenoid valve for being set to the sap cavity top is opened, and the pumping pump work simultaneously generates negative pressure to concentrate in sap cavity
Absorption upwards, the concentrate being stored in liquid bucket is adsorbed upwards and is entered in sap cavity by the pipeline of sap cavity side, in sap cavity
When liquid level float rises to highest order, solenoid valve close and aspiration pump stop working, in sap cavity concentrate through bottom pipe and into
Enter to precision flow regluating valve, then enter back into the concentrate pump, concentrate is input to dense by concentrate pump through pipeline
Contracting liquid mixed room, then be mixed and fed into reverse osmosis water to being sufficiently mixed in static mixer, multiple concentrate pumps successively will not
It is further mixed with the dilution that concentrate is input to concentrate mixed room and reverse osmosis water and is incorporated in static mixer and is sufficiently mixed
Form normal dialysis liquid；
S3: normal dialysis liquid enters in the dialysis liquid pump through pipeline, then enters to the upper of the pressure regulator through pipeline
In space, stopped and entered back into conductivity meter after generating certain choked flow by the spoiler, if the temperature of dialyzate and
Conductivity is in critical field value, and dialyzate, which is directly entered to the dialysis fluid chamber and user's blood, occurs the isotonic friendship of substance
It changes, then the liquid outlet through dialysis fluid chamber enters the pipeline being connected with the waste drains pump and enters in waste drains pump；
S4: if the temperature and conductivity of dialyzate are not in critical field value, the conductivity meter and the dialysis
The connected pipeline of liquid chamber is closed by the dialysis solenoid valve, then is entered through the shunt valve and the bypass valve and given up with described
The connected pipeline of liquid pump simultaneously enters in waste drains pump；
S5: dialysis waste liquid or the solution entered in the waste drains pump through the bypass valve enter to the pressure tune by pipeline
In the down space for saving device, choked flow is generated through spoiler；Waste liquid and dialyzate flow direction are on the contrary, the upper and lower part of spoiler is divided
It is not swung towards different directions, the elastic diaphragm occurs flexible deformation and guarantees the upper space and down space flow velocity and flow phase
Together, solution flows out down space again and discharges outward.
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| CN201910240759.XA CN109966577B (en) | 2019-03-28 | 2019-03-28 | Hemodialysis/filtration device and implementation method thereof |
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| CN111905171A (en) * | 2020-09-21 | 2020-11-10 | 徐勇 | Hemodialysis centralized liquid supply mutual supply device and method using same |
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| CN109966577B (en) | 2023-09-08 |
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