CN107875467A - A kind of Multifunction blood dialyzer performance testing device and application method - Google Patents
A kind of Multifunction blood dialyzer performance testing device and application method Download PDFInfo
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- CN107875467A CN107875467A CN201711487299.8A CN201711487299A CN107875467A CN 107875467 A CN107875467 A CN 107875467A CN 201711487299 A CN201711487299 A CN 201711487299A CN 107875467 A CN107875467 A CN 107875467A
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- 238000001514 detection method Methods 0.000 claims abstract description 12
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- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
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Classifications
-
- 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
-
- 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
- A61M2205/70—General characteristics of the apparatus with testing or calibration facilities
Abstract
The invention discloses one kind can self-cleaning Multifunction blood dialyzer performance testing device and application method, institute's detection project comprises at least the performance parameter such as dialyzer ultrafiltration rate, sieveing coeffecient and pressure drop.Instrument includes simulation liquid supply system, cleaning solution supplying system, blood pump, pressure sensor, pressure-regulating valve, flowmeter, waste liquid tank and master controller.The method have the advantages that：A tractor serves several purposes, easy to operate, test speed is fast；Test process real-time display and record test condition and data, can fully, completely judge the performance under the conditions of different operating, while avoid the error of manual record, and test result is accurately reliable；Test terminates rear capable of washing, sterilizing equipment decontaminating apparatus and pipeline, avoids the cross pollution of different simulated solutions, is advantageous to improve test result stability, accuracy.
Description
Technical field
The present invention relates to haemodialyser performance parameter test field, say in detail be a kind of detectable dialyzer ultrafiltration rate,
The multinomial performance such as sieveing coeffecient and pressure drop, it is simple to operate, accuracy is high, repeat the Multifunction blood dialyzer of stable performance
Performance testing device and application method.
Background technology
It is known that haemodialysis is to treat a kind of method of ESRD, therapeutic process is by the blood of patient's body
Outside lead body, using disperse caused by the concentration difference of dialysis membrane blood and dialysis fluid side, pressure differential, convection current, filtration and
The removing and exchange of metabolic waste, noxious material and the water, electrolyte to needing to remove in blood are completed in suction-operated, reach interior
The balance of environment, then by the defeated the Huis' body of blood after purification, reach the purpose for the treatment of.
Dialyzer performance directly influences therapeutic efficiency, and current domestic haemodialyser performance evaluation refers to YY0053-
2008《Cardiovascular implant and artificial organs haemodialyser, filter for blood dialysis, transfusion filters and pachyemia
Device》, several important evaluatings are proposed to dialyzer in standard：Urea, creatinine, the clearance rate of phosphate and vitamin B12,
Albumin, inulin and myoglobins sieveing coeffecient, ultrafiltration rate, blood chamber capacity, blood chamber and dialysate chamber chamber pressure drop
Deng.Because the test process of clearance rate needs to use simulated solution blood perfusion chamber, perfusion dialyzer dialyzate chamber of dialysing,
Therefore clearance rate test is generally by dialysis machine.There is no special test equipment during remaining performance parameter test, test every time all needs
Experimental provision is built, test process is cumbersome；Different testers build device it is different also can to test result accuracy and
Repeatability impacts, particularly with regard to performance parameters such as the ultrafiltration rates and pressure drop that need to obtain pressure value.
The content of the invention
Present invention aim to address above-mentioned the shortcomings of the prior art, there is provided a kind of detectable dialyzer ultrafiltration
The multinomial performances such as rate, sieveing coeffecient and pressure drop, simple to operate, accuracy is high, the Multifunction blood for repeating stable performance is saturating
Parser performance testing device and application method.
Technical scheme is used by the present invention solves above-mentioned the deficiencies in the prior art：
A kind of Multifunction blood dialyzer performance testing device, it is characterised in that：Supplied including cleaning solution supplying system, simulated solution
System, waste liquid tank and controller, the cleaned control valve of cleaning solution supplying system（Magnetic valve）It is connected with simulation liquid supply system, mould
Intend liquid supply system and be provided with simulated solution efferent duct, simulated solution efferent duct is provided with blood pump and input pressure sensor；Waste liquid tank
The first sewer pipe, the second sewer pipe and the 3rd sewer pipe are provided with, the first sewer pipe is provided with pressure-regulating valve and output pressure
Sensor, the second sewer pipe are provided with flowmeter, and the 3rd sewer pipe is provided with and filters out pump；Simulated solution efferent duct and the first sewer pipe
Between be provided with difference gauge；Controller is adjusted with purge control valve, blood pump, input pressure sensor, pressure sensor output, pressure respectively
Section valve, flowmeter, filter out pump and be connected with difference gauge.
Set respectively on heretofore described simulated solution efferent duct, the first sewer pipe, the second sewer pipe and the 3rd sewer pipe
Have（For）The joint being connected with haemodialyser.
Heretofore described simulation liquid supply system includes simulation liquid container, heater, temperature sensor and agitator；
Heater, temperature sensor and agitator are placed in simulation liquid container.The simulation needed for providing the performance parameter test
Liquid and control simulated solution temperature it is constant.
Testing stand, described cleaning solution supplying system, simulation liquid supply system, waste liquid tank and controller are provided with the present invention
It is arranged on testing stand.
The method that haemodialyser ultrafiltration rate performance is detected using above-mentioned Multifunction blood dialyzer performance testing device, its
It is characterised by comprising the following steps：
Step 1：Simulated solution efferent duct is connected with the blood chamber entrance of haemodialyser, the blood chamber of haemodialyser
Outlet is connected with the first sewer pipe, and the dialyzate chamber outlet of haemodialyser is connected with the second sewer pipe,（Haemodialyser
Dialysate chamber chamber inlet seals）；
Step 2：Simulated solution thermostatic is adjusted to 37 DEG C, blood pump work, simulated solution is inputted in haemodialyser, regulation pressure
Force regulating valve, measure the blood chamber outlet pressure P of haemodialyserBO, the blood chamber inlet pressure P of haemodialyserBI,
Work as PBIAnd PBOAfter stable, the integrated flux V in filter liquor unit interval T is obtained using the flow measurement on the second sewer pipe, according to
Formula UFR=V/（TMP×T）、TMP=1/2（PBI+PBO）Obtain ultrafiltration rate UFR values.
The method that haemodialyser sieveing coeffecient performance is detected using above-mentioned Multifunction blood dialyzer performance testing device,
It is characterized in that comprise the following steps：
Step 1：Simulated solution efferent duct is connected with the blood chamber entrance of haemodialyser, the blood chamber of haemodialyser
Outlet is connected with the second sewer pipe, and the dialyzate chamber outlet of haemodialyser is connected with the 3rd sewer pipe（Haemodialyser
Dialysate chamber chamber inlet seals）；
Step 2：Simulated solution thermostatic is adjusted to 37 DEG C, blood pump works, when the simulated solution and the three wastes in simulated solution efferent duct
After filter liquor stability of flow in liquid pipe, collect and measure input, output haemodialyser（Simulated solution efferent duct and the second waste liquid
In pipe）Simulated solution concentration cBI 、cBOAnd（In 3rd sewer pipe）The concentration c of filter liquorF, according to formula S=2cF/(cBI+
cBO) it can obtain sieveing coeffecient S value.
Use the blood chamber pressure drop of above-mentioned Multifunction blood dialyzer performance testing device detection haemodialyser
The method of energy, it is characterised in that comprise the following steps：
Step 1：Simulated solution efferent duct is connected with the blood chamber entrance of haemodialyser, the blood chamber of haemodialyser
Outlet is connected with the first sewer pipe, and the dialyzate chamber dialyzate of haemodialyser is filled and sealed；
Step 2：It is 37 DEG C to set simulated solution temperature, blood pump work, simulated solution in the first sewer pipe is adjusted by pressure-regulating valve
Flow, the value of the difference gauge of display are the value of blood chamber pressure drop.
Use above-mentioned Multifunction blood dialyzer performance testing device detection haemodialyser dialysate chamber chamber pressure drop property
The method of energy, it is characterised in that comprise the following steps：
Step 1：Simulated solution efferent duct is connected with the dialysate chamber chamber inlet of haemodialyser, the dialyzate of haemodialyser
Chamber outlet is connected with the first sewer pipe, and the blood chamber ox blood slurry of haemodialyser is filled and sealed；
Step 2：It is 37 DEG C to set simulated solution temperature, blood pump work, simulated solution in the first sewer pipe is adjusted by pressure-regulating valve
Flow, the value of the difference gauge of display are the value of dialysate chamber chamber pressure drop.
A tractor serves several purposes of the present invention, the performance parameters such as ultrafiltration rate, sieveing coeffecient and the pressure drop of haemodialyser can be tested, grasped
Make easy, raising testing efficiency；Test process can set test parameter, real-time display test data by PLC, and can record survey
Strip part and test data, the performance under the conditions of different operating can fully, be completely judged, while avoid the mistake of manual record
Difference, test result are accurately reliable；Test fast and effective can be cleaned after terminating, sterilizing equipment decontaminating apparatus and pipeline, avoid different performance ginseng
The cross pollution of number simulated solution, be advantageous to improve test result stability, accuracy.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of haemodialyser.
In figure：1st, controller；2nd, cleaning solution supplying system；3rd, purge control valve；4th, liquid supply system is simulated；5th, temperature passes
Sensor；6th, agitator；7th, heater；8th, input pressure sensor；9th, blood pump；Joint 10；11st, pressure-regulating valve；12nd, differential pressure
Meter；13rd, pressure sensor output；14th, pump is filtered out；15th, flowmeter；16th, waste liquid tank；A1, the first sewer pipe；A2, the 3rd waste liquid
Pipe；A3, the second sewer pipe；B, simulated solution efferent duct；C1, haemodialyser blood chamber entrance；C2, haemodialyser blood
Chamber outlet；C3, haemodialyser dialysate chamber chamber inlet；C4, haemodialyser dialyzate chamber outlet.
Embodiment
Multifunction blood dialyzer performance testing device as shown in Figure 1, including cleaning solution supplying system 2, simulated solution supply
To system 4, waste liquid tank 16 and controller 1, controller 1 is PLC.The cleaned control valve 3 of cleaning solution supplying system 2 and mould
Intend liquid supply system 4 to be connected, purge control valve 3 is magnetic valve.Simulation liquid supply system 4 is provided with simulated solution efferent duct B, simulates
Liquid efferent duct B is provided with blood pump 9 and input pressure sensor 8, and blood pump 9 is located at the front side of input pressure sensor 8；On waste liquid tank 16
Provided with the first sewer pipe A1, the second sewer pipe A3 and the 3rd sewer pipe A2, the first sewer pipe A1 is provided with the He of pressure-regulating valve 11
Pressure sensor output 13, pressure sensor output 13 are located at the front side of pressure-regulating valve 11；Second sewer pipe A3 is provided with flow
Meter 15, the 3rd sewer pipe A2 are provided with and filter out pump 14；Difference gauge 12 is provided between simulated solution efferent duct B and the first sewer pipe A1；Mould
The connection end for intending liquid efferent duct B, the first sewer pipe A1, the second sewer pipe A3 and the 3rd sewer pipe A2 is provided with for saturating with blood
The joint 10 that parser is quickly connected.Controller 1 respectively with purge control valve 3, blood pump 9, input pressure sensor 8, output pressure
Sensor 13, pressure-regulating valve 11, flowmeter 15, filter out pump 14 and be connected with difference gauge 12, for detecting measurement data and control
The work of each device.Described simulation liquid supply system 4 includes simulation liquid container, heater 7, temperature sensor 5 and agitator
6；Heater 7, temperature sensor 5 and agitator 6 are placed in simulation liquid container, are connected with controller.Heater 7 and TEMP
Device 5 is used for the temperature for adjusting control simulated solution, agitator 6 make simulated solution solute Distribution in simulation liquid container everywhere uniformly, carry
High its consistency.Provided with testing stand, described cleaning solution supplying system, simulation liquid supply system, waste liquid tank and controller are set
On testing stand, move and using more convenient.During work, the liquid on each pipeline flows from the front to the back.
Heretofore described cleaning solution supplying system includes cleaning disinfection liquid apparatus for placing, after use of the present invention, opens
Purge control valve, can be to test device cleaning and sterilizing；The blood pump is used to simulated solution constant flow being delivered to haemodialysis
Device, the pump that filters out are used for the liquid pump of outflow dialyzer to waste liquid tank；The input pressure sensor and output pressure pass
Sensor is used for the pressure for detecting haemodialyser input and output end；The pressure-regulating valve, for adjusting dialyzer output
Liquid pressure value；The flowmeter is used to obtain the instantaneous delivery or integrated flux through hemodialysis membrane filtered solution；Institute
Difference gauge is stated to be used to measure the input of haemodialyser and the pressure differential of output end；The waste liquid tank is used to collect from dialyzer
The waste liquid of middle outflow；The controller includes PLC and for setting test parameter and showing the man-machine of test result
Interactive interface, described controller are adjusted with purge control valve, blood pump, input pressure sensor, pressure sensor output, pressure
Valve, flowmeter, filter out pump and be connected with electrical equipments such as difference gauges.The heater of described simulation liquid supply system can use coil pipe
Formula, preferably jacket type heater, coil heater.The agitator of described simulation liquid supply system for magnetic stirring apparatus or
Mechanical agitator.Described cleaning fluid can be pure water, citric acid solution, liquor natrii hypochloritis, glacial acetic acid solution or peroxide second
The one or more of acid solution；Described blood pump can use rolling-type, pulsation type, rotary, centrifugal blood pump with pump is filtered out, excellent
Choosing, using roller pump.Described flowmeter can use vortex-shedding meter or ultrasonic flowmeter.
Use the method for above-mentioned Multifunction blood dialyzer performance testing device detection haemodialyser ultrafiltration rate performance, bag
Include following steps：
Step 1：Simulated solution efferent duct B is connected with the haemodialyser blood chamber entrance C1 shown in Fig. 2, haemodialyser
Blood chamber outlet C2 is connected with the first sewer pipe A1, the dialyzate chamber outlet C4 of haemodialyser and the second sewer pipe A3 phases
Even, the dialysate chamber chamber inlet C3 sealings of haemodialyser；
Step 2：Simulated solution thermostatic is adjusted to 37 DEG C, controller control blood pump 9 is worked, and simulated solution is inputted into haemodialysis
In device, pressure-regulating valve 11 is adjusted, the blood chamber outlet pressure for making haemodialyser is setting value PBO, i.e., output pressure sense
The registration of device 13 is PBO；Measure the blood chamber inlet pressure P of haemodialyserBI, i.e. the registration of input pressure sensor 8 is
PBI；Work as PBIAnd PBOAfter stable, the integrated flux in filter liquor unit interval T is measured using the flowmeter 15 on the second sewer pipe
V, according to formula UFR=V/（TMP×T）、TMP=1/2（PBI+PBO）Obtain ultrafiltration rate UFR values.
In the present embodiment, to maintain to set transmembrane pressure pressure stability, the setting simulation flow quantity of blood pump 9 can be first passed through（Pump
Flow can be set）, then adjust pressure-regulating valve 11 and form pressure control loop, reach and maintain set pressure, pass through
The data of collection filtration flow quantity, can obtain ultrafiltration rate of the hemodialysis membrane in same transmembrane pressure under different flow by PLC
Value, and analyzing and processing can be carried out and form data and curves, can at large understand detected dialyzer as far as possible in possible work
Performance under the conditions of work.
In the present embodiment, haemodialyser sieveing coeffecient performance detection comprises at least following steps：
Step 1：Simulated solution efferent duct B is connected with the blood chamber entrance C1 of the haemodialyser shown in Fig. 2, haemodialysis
The blood chamber outlet C2 of device is connected with the second sewer pipe A3, the dialyzate chamber outlet C4 and the 3rd sewer pipe of haemodialyser
Be connected A2, the dialysate chamber chamber inlet C3 sealings of haemodialyser；
Step 2：Simulated solution thermostatic is adjusted to 37 DEG C, control blood pump work, when the simulated solution in simulated solution efferent duct and the
After filter liquor stability of flow in three sewer pipes, collect and measure input, the simulated solution concentration of output haemodialyser, i.e. simulation
Strength of fluid c in liquid efferent duct and the second sewer pipeBI 、cBOAnd the concentration c of the 3rd filter liquor in sewer pipeF, according to formula
S=2cF/(cBI+cBO) it can obtain sieveing coeffecient S value.
Above-mentioned simulated solution and filtered solution concentration obtains can be by UV absorptiometry, immunoturbidimetry, efficient liquid phase
The one or more of chromatography etc..
In the present embodiment, haemodialyser blood chamber pressure drop performance detection comprises at least following steps：
Step 1：Simulated solution efferent duct B is connected with the blood chamber entrance C1 of haemodialyser, the blood chamber of haemodialyser
Outlet C2 in room is connected with the first sewer pipe A1, and the dialyzate chamber of haemodialyser is filled with dialyzate and by dialyzate chamber
Entrance C3 and dialyzate chamber outlet C4 sealings；
Step 2：It is 37 DEG C to set simulated solution temperature, control blood pump work, is adjusted by pressure-regulating valve in the first sewer pipe A1
Simulated solution flow pressure, the value of the difference gauge of display are the value of blood chamber pressure drop.
In the present embodiment, haemodialyser dialysate chamber chamber pressure drop performance detection comprises at least following steps：
Step 1：Simulated solution efferent duct B is connected with the dialysate chamber chamber inlet C3 of haemodialyser, the dialysis of haemodialyser
Liquid chamber outlet C4 is connected with the first sewer pipe A1, and the blood chamber of haemodialyser starches filling and by blood chamber with ox blood
Entrance C1, blood chamber outlet C1 sealings；
Step 2：It is 37 DEG C to set simulated solution temperature, blood pump work, is adjusted in the first sewer pipe A1 and simulated by pressure-regulating valve
Flow quantity, the value of the difference gauge of display are the value of dialysate chamber chamber pressure drop.
During above-mentioned pressure drop test, simulated solution entrance and exit flow is first set in PLC control softwares, treats pressure stability
Afterwards, by gathering the data of difference gauge, the value of pressure drop of the hemodialysis membrane under different flow can be obtained by PLC, and can
Carry out analyzing and processing and form data and curves.
After test event, pipeline B can be connected with A1, A2, A3 by four-way, selection sterilization cleaning procedure, PLC controls
In software processed magnetic valve 3 switch open, set blood pump 9 and it is green go out pump 14 flow, can sterilize cleaning complete equipment pipeline.Clearly
Magnetic valve 2 is closed after washing.
It should be noted that above-described embodiment can independent assortment as needed.Described above is only the preferred of the present invention
Embodiment, it is noted that for those skilled in the art, before the principle of the invention is not departed from
Put, the improvements and modifications that can be made also should be regarded as protection scope of the present invention.
Claims (8)
- A kind of 1. Multifunction blood dialyzer performance testing device, it is characterised in that：Supplied including cleaning solution supplying system, simulated solution To system, waste liquid tank and controller, the cleaned control valve of cleaning solution supplying system is connected with simulation liquid supply system, and simulated solution supplies Simulated solution efferent duct is provided with to system, simulated solution efferent duct is provided with blood pump and input pressure sensor；Waste liquid tank is provided with First sewer pipe, the second sewer pipe and the 3rd sewer pipe, the first sewer pipe are provided with pressure-regulating valve and pressure sensor output, Second sewer pipe is provided with flowmeter, and the 3rd sewer pipe is provided with and filters out pump；It is provided between simulated solution efferent duct and the first sewer pipe Difference gauge；Controller respectively with purge control valve, blood pump, input pressure sensor, pressure sensor output, pressure-regulating valve, Flowmeter, filter out pump and be connected with difference gauge.
- 2. Multifunction blood dialyzer performance testing device according to claim 1, it is characterised in that：Described simulated solution The joint being connected with haemodialyser is respectively equipped with efferent duct, the first sewer pipe, the second sewer pipe and the 3rd sewer pipe.
- 3. Multifunction blood dialyzer performance testing device according to claim 1 or 2, it is characterised in that：Described mould Intending liquid supply system includes simulation liquid container, heater, temperature sensor and agitator；Heater, temperature sensor and stirring Device is placed in simulation liquid container.
- 4. Multifunction blood dialyzer performance testing device according to claim 1 or 2, it is characterised in that：Provided with detection Frame, described cleaning solution supplying system, simulation liquid supply system, waste liquid tank and controller are arranged on testing stand.
- It is 5. forthright using Multifunction blood dialyzer performance testing device as claimed in claim 1 detection haemodialyser ultrafiltration The method of energy, it is characterised in that comprise the following steps：Step 1：Simulated solution efferent duct is connected with the blood chamber entrance of haemodialyser, the blood chamber of haemodialyser Outlet is connected with the first sewer pipe, and the dialyzate chamber outlet of haemodialyser is connected with the second sewer pipe；Step 2：Simulated solution thermostatic is adjusted to 37 DEG C, blood pump work, simulated solution is inputted in haemodialyser,The blood chamber inlet pressure P of haemodialyser is setBI, haemodialyser blood chamber outlet pressure PBO, work as PBIWith PBOAfter stable, the integrated flux V in filter liquor unit interval T is obtained using the flow measurement on the second sewer pipe, according to formula UFR =V/（TMP×T）、TMP=1/2（PBI+PBO）Obtain ultrafiltration rate UFR values.
- 6. use Multifunction blood dialyzer performance testing device as claimed in claim 1 detection haemodialyser sieveing coeffecient The method of performance, it is characterised in that comprise the following steps：Step 1：Simulated solution efferent duct is connected with the blood chamber entrance of haemodialyser, the blood chamber of haemodialyser Outlet is connected with the second sewer pipe, and the dialyzate chamber outlet of haemodialyser is connected with the 3rd sewer pipe（Haemodialyser Dialysate chamber chamber inlet seals）；Step 2：Simulated solution thermostatic is adjusted to 37 DEG C, blood pump works, when the simulated solution and the three wastes in simulated solution efferent duct After filter liquor stability of flow in liquid pipe, collect and measure input, the simulated solution concentration c of output haemodialyserBI 、cBOAnd filter Go out the concentration c of liquidF, according to formula S=2cF/(cBI+cBO) it can obtain sieveing coeffecient S value.
- 7. use the blood chamber of Multifunction blood dialyzer performance testing device as claimed in claim 1 detection haemodialyser The method that performance drops in chamber pressure, it is characterised in that comprise the following steps：Step 1：Simulated solution efferent duct is connected with the blood chamber entrance of haemodialyser, the blood chamber of haemodialyser Outlet is connected with the first sewer pipe, and the dialyzate chamber dialyzate of haemodialyser is filled and sealed；Step 2：It is 37 DEG C to set simulated solution temperature, blood pump work, simulated solution in the first sewer pipe is adjusted by pressure-regulating valve Flow, the value of the difference gauge of display are the value of blood chamber pressure drop.
- 8. use Multifunction blood dialyzer performance testing device as claimed in claim 1 detection haemodialyser dialysate chamber The method that performance drops in chamber pressure, it is characterised in that comprise the following steps：Step 1：Simulated solution efferent duct is connected with the dialysate chamber chamber inlet of haemodialyser, the dialyzate of haemodialyser Chamber outlet is connected with the first sewer pipe, and the blood chamber ox blood slurry of haemodialyser is filled and sealed；Step 2：It is 37 DEG C to set simulated solution temperature, blood pump work, simulated solution in the first sewer pipe is adjusted by pressure-regulating valve Flow, the value of the difference gauge of display are the value of dialysate chamber chamber pressure drop.
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| CN110147134A (en) * | 2019-05-17 | 2019-08-20 | 苏州迈迪威检测技术有限公司 | A kind of control method of fluid device, device and storage medium |
| WO2021107906A1 (en) * | 2019-11-26 | 2021-06-03 | Fresenius Medikal Hizmetler A.S. | A water treatment device |
| CN113633841A (en) * | 2021-08-05 | 2021-11-12 | 北京健帆医疗设备有限公司 | Pressure detection method for blood purification apparatus, and storage medium |
| CN114209906A (en) * | 2022-01-04 | 2022-03-22 | 山东威高血液净化制品股份有限公司 | Automatic device and method for testing blood chamber pressure drop |
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| CN208877485U (en) * | 2017-12-29 | 2019-05-21 | 威海威高血液净化制品有限公司 | A kind of Multifunction blood dialyzer performance testing device |
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| CN104689395A (en) * | 2013-12-05 | 2015-06-10 | 天津市迈克尔化工有限公司 | Experimental facility for dialyzer ultrafiltration rate and clearance rate |
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| CN110147134A (en) * | 2019-05-17 | 2019-08-20 | 苏州迈迪威检测技术有限公司 | A kind of control method of fluid device, device and storage medium |
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Address after: No.20, Xingshan Road, torch hi tech Industrial Development Zone, Huancui District, Weihai City, Shandong Province 264200 Applicant after: Shandong Weigao blood purification products Co.,Ltd. Address before: No.20, Xingshan Road, torch hi tech Industrial Development Zone, Huancui District, Weihai City, Shandong Province 264200 Applicant before: WEIHAI WEIGAO BLOOD PURIFICATION PRODUCTS Co.,Ltd. |