CN206103035U - Blood pump testing system - Google Patents
Blood pump testing system Download PDFInfo
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- CN206103035U CN206103035U CN201620662643.7U CN201620662643U CN206103035U CN 206103035 U CN206103035 U CN 206103035U CN 201620662643 U CN201620662643 U CN 201620662643U CN 206103035 U CN206103035 U CN 206103035U
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Abstract
The utility model provides a blood pump testing system. This blood pump testing system includes: separate disposing's experiment operation district and detection equipement zone, the experiment operation district is including blood pump testing loop and controller, the controller is used for controlling according to control parameter equipment in the blood pump testing loop, it includes parameter input device and data acquisition facility to detect equipement zone, parameter input device is used for sending control parameter extremely the controller, data acquisition facility is used for gathering the test data of blood pump testing loop. The utility model discloses separate disposing experiment operation district and detection equipement zone avoid operation and liquid damage equipment in the experimentation, for the capability test of blood pump provides a normalized testing ring border, adopt the check out test set of recognized goldstandard in the industry, for artificial heart's test provides unified testing standard, select corresponding test module according to detection project and detection demand, it is convenient to install, satisfies the measuring accuracy simultaneously.
Description
Technical field
This utility model is related to artificial heart technical field of measurement and test, and in particular to a kind of blood pump test system.
Background technology
Auxiliary and substituted device of the artificial heart as cardiac pumping function, especially implantable heart chamber auxiliary pump, need
Will long-term assist circulation in vivo, maintain effective perfusion of body normal arterial pressure and cerebral tissue and other important organs, to which
Effectiveness, safety and stability have high requirement.Therefore, into clinical trial and using front having to pass through blood pump
Hydraulic performance test, hemolysis test, durability test and zoopery carry out fully detailed evaluation to blood pump, find
And correct potential problem.Except zoopery, remaining test is required for carrying out on experiment porch in vitro, therefore experiment porch
Performance directly decides the accuracy and reliability of blood pump test data.
Hemolysis are to evaluate blood pump to a most important evaluation index in injury of blood cell effect, but are lacking system
Before one experimental technique, the blood pump hemolysis result of study carried out to each side is difficult to compare.Therefore, U.S. material and reality
Test association (American Society for Testing and Materials, ASTM) formulated one for research export
The Standard test method (ASTM F1841) of the blood pump hemolysis of continuouss blood flow, and the condition and stream of specification blood collection
Journey (ASTM F1830).But ASTM F1841 have only been briefly described experiment flow, experiment material and device class and simple
Experiment linkloop.
By the comparative study to the external hemolytic experiment of each mechanism and blood pump hydraulic performance experimental provision, all experiments are found
Building for device all lack uniformity, standardization, is unfavorable for the repeatability of experimental result, causes the knot to blood pump performance test
It is really inaccurate.
Utility model content
Technical problem to be solved in the utility model is：Existing blood pump test system lacks standardization, is unfavorable for
The Stability and veracity of experimental result, causes the result to blood pump performance test carry out asking for accurate lateral comparison
Topic.
To solve above-mentioned technical problem, the utility model proposes a kind of blood pump test system, the blood pump test system
System includes：
Separate the experimental implementation area and testing equipment area for arranging；
The experimental implementation area includes blood pump test loop and controller, and the controller is for according to control parameter control
Make the equipment in the test loop；
The testing equipment area includes parameter input device and data acquisition equipment, and the parameter input device is used to send
To the controller, the data acquisition equipment is used for the test data for gathering the test loop to control parameter.
Alternatively, the blood pump test loop includes：Hydraulic performance test loop；
The hydraulic performance test loop includes：The liquid storing bag that is sequentially connected, first pressure sensor, test blood pump, temperature
Degree sensor, second pressure sensor, supersonic blood instrument and electric ratio pipeline folder；
The liquid storing bag is suspended to the position of the first preset height above the test blood pump；
The first pressure sensor positioned at apart from the position of first preset length of test blood pump inlet, for testing
Pressure at the test blood pump inlet；
The second pressure sensor positioned at apart from the position of first preset length of test blood pump discharge, for testing
Pressure at the test blood pump discharge；
The fluid temperature (F.T.) that the temperature sensor is used in test loop；
The supersonic blood instrument is positioned at apart from the position of second preset length of test blood pump discharge, described for testing
The flow of hydraulic performance test loop；
The electric ratio pipeline folder is located at the position of the 3rd preset length of test blood pump discharge, for adjusting the survey
The afterload of examination blood pump.
Alternatively, first preset height is 50cm；
First preset length is 10cm；
Second preset length is 30cm；
3rd preset length is 50cm.
Alternatively, the glycerine water solution equipped with preset vol ratio in the liquid storing bag and test loop.
Alternatively, the blood pump test system also includes water bath with thermostatic control；The liquid storing bag is immersed in the water bath with thermostatic control.
Alternatively, the blood pump test loop includes：Hemolysis test loop；
The hemolysis test loop includes：The blood storage bag that is sequentially connected, first pressure sensor, test blood pump, temperature
Degree sensor, second pressure sensor, supersonic blood instrument and electric ratio pipeline folder；
The first pressure sensor is located at the position of first preset length of test blood pump inlet, described for testing
Pressure at test blood pump inlet；
The second pressure sensor is located at the position of first preset length of test blood pump discharge, described for testing
Pressure at test blood pump discharge；
The fluid temperature (F.T.) that the temperature sensor is used in test loop；
The supersonic blood instrument is located at the position of second preset length of test blood pump discharge, for testing the waterpower
The flow of performance test loop；
The electric ratio pipeline folder is located at the position of the 3rd preset length of test blood pump discharge, for adjusting the survey
The afterload of examination blood pump；
Also include water bath with thermostatic control, the blood storage bag is immersed in the water bath with thermostatic control.
Alternatively, first preset length is 10cm；
Second preset length is 30cm；
3rd preset length is 50cm.
Alternatively, the blood storage bag is not contacted with the inwall of the water bath with thermostatic control.
Alternatively, the equipment in the blood pump test loop by total length be 2m, a diameter of 3/8in. PVC it is external
Circulating line connects into closed circuit.
Alternatively, the data acquisition equipment includes pressure data harvester, and the pressure data harvester is used for
Gather the test data of the first pressure sensor and the second pressure sensor.
The blood pump test system that this utility model is provided, separates according to function and arranges experimental implementation area and testing equipment
Blood pump test loop and controller are placed in experimental implementation area by area, and parameter input device and data acquisition equipment are positioned over
Testing equipment area, it is to avoid the accuracy of operation and liquid damage equipment or impact detection in experimentation.This utility model is carried
For blood pump test system, the performance test for blood pump provides a standardized test environment, using generally acknowledged in the industry
The testing equipment of goldstandard, the test for artificial heart provide unified testing standard, are selected according to detection project and detection demand
Corresponding test module, install convenient are selected, while meeting the accuracy of measurement.The actually detected demand of each measure the item is carried out
Programming, arranges disparity items detection program, automatic measurement and output measurement data, by the fortune of looped system regulating system
Row state, carries out the hydraulic performance and hemolysis test of blood pump successively according to the measurement procedure in program, it is also possible to make by oneself
Adopted test parameter.
Description of the drawings
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or accompanying drawing to be used is briefly described needed for description of the prior art, it should be apparent that, drawings in the following description are these
Some embodiments of utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the blood pump test system of this utility model one embodiment；
Fig. 2 is the structural representation of the hydraulic performance test loop of this utility model one embodiment；
Fig. 3 is the structural representation of the hemolysis test loop of this utility model one embodiment；
Fig. 4 is the structural representation of the blood storage bag of this utility model one embodiment.
Specific embodiment
It is to make purpose, technical scheme and the advantage of this utility model embodiment clearer, new below in conjunction with this practicality
Accompanying drawing in type embodiment, carries out clear, complete description to the technical scheme in this utility model embodiment, it is clear that retouched
The embodiment stated is a part of embodiment of this utility model, rather than the embodiment of whole.Based on the enforcement in this utility model
Example, the every other embodiment obtained under the premise of creative work is not made by those of ordinary skill in the art are belonged to
The scope of this utility model protection.
This utility model embodiment is in order to more accurately study hydraulic performance, the hemolytic of continuous blood flow type artificial heart
Can, and the further mechanism and physiologic index of research haemolysis, design and built the blood pump test system of complete set.
Fig. 1 is the structural representation of the blood pump test system of this utility model one embodiment.As shown in figure 1, this reality
Included with the blood pump test system of new embodiment：
Separate the experimental implementation area and testing equipment area for arranging；
The experimental implementation area includes blood pump test loop 1 and controller 2, and controller 2 is for according to control parameter control
Equipment in blood pump test loop processed 1；
The testing equipment area includes parameter input device 3 and data acquisition equipment 4, and parameter input device 3 is used to send
To controller 2, data acquisition equipment 4 is used for the test data for gathering blood pump test loop 1 to control parameter.
The blood pump test system that this utility model is provided, separates according to function and arranges experimental implementation area and testing equipment
Blood pump test loop and controller are placed in experimental implementation area by area, and parameter input device and data acquisition equipment are positioned over
Testing equipment area, it is to avoid the operation and liquid damage equipment in experimentation, affects the accuracy of detection.This utility model is provided
Blood pump test system, the performance test for blood pump provides a standardized test environment, using gold generally acknowledged in the industry
The testing equipment of standard, the test for artificial heart provide unified testing standard, are selected according to detection project and detection demand
Corresponding test module, install convenient, while meeting the accuracy of measurement；The actually detected demand of each measure the item is compiled
Journey, arranges disparity items detection program, automatic measurement and output measurement data, by the operation of looped system regulating system
State, carries out the hydraulic performance and hemolysis test of blood pump successively according to the measurement procedure in program, it is also possible to self-defined
Test parameter.
In actual applications, the blood pump examining system of this utility model embodiment is designed and is built and follows strictly ASTM
The experimental standard of F1841.System skeleton is built using aluminium section bar, and test system is divided into into experiment behaviour with transparent organic glass
Make area and testing equipment area.Can be easy to adjust blood pump by lucite Real Time Observation measured value in experimental implementation
The running status and parameter of test loop.
This utility model embodiment carries out blood pump test wrapper according to the requirement of the standardized assay specification of ASTM F1841
The design on road, and the suspention height of connecting length and blood bag between each testing equipment is more refined on this basis,
And using measuring apparatus detection parameters generally acknowledged in the industry and index, build standardized blood pump test loop, it is ensured that
The verity and reliability of measurement data.As the purpose and content of hydraulic performance test and hemolysis test are differed,
Therefore corresponding experiment and testing equipment are selected for this two class testings research, experiment loop is built with modularized design.
Specifically, blood pump test loop 1 includes：Hydraulic performance test loop；
Hydraulic performance test loop includes：The liquid storing bag 11 that is sequentially connected, first pressure sensor 12, test blood pump 13,
Temperature sensor 14, second pressure sensor 15, supersonic blood instrument 16 and electric ratio pipeline folder 17；
Liquid storing bag 11 is suspended to the position of the first preset height above test blood pump 13；
First pressure sensor 12 is located at the position of 13 the first preset length of import of distance test blood pump, for test
The pressure of 13 entrance of blood pump；
Second pressure sensor 15 is located at the position that distance test blood pump 13 exports the first preset length, for test
The pressure in 13 exit of blood pump；
The fluid temperature (F.T.) that temperature sensor 14 is used in test loop；
Supersonic blood instrument 16 is located at the position that distance test blood pump 13 exports the second preset length, for testing hydraulic performance
The flow of test loop；
Electric ratio pipeline folder 17 is positioned at apart from the position of the 3rd preset length of test blood pump discharge, described for adjusting
The afterload of test blood pump.
In actual applications, the optical flat of a 60cm × 30cm is placed in experimental implementation area, will detection blood pump peace
It is mounted on special stand, and secures the stand on optical flat, prevents from blood pump running being moved and shaking,
Increase the stability of blood pump operation.
Preferably, first preset height is 50cm；First preset length is 10cm；Second preset length
For 30cm, the 3rd preset length is 50cm.
It should be noted that liquid storing bag 11 is suspended to the position of the 50cm above test blood pump 13.Pressure transducer is selected
Pressure transducer used in clinic, is connected serially to test loop using side interface mode, and wire is connected to monitor and continues to monitor
Pressure in pipeline, it is to avoid industrial pressure tester or intrusive mood pressure tester affect blood flow to cause the haemolysis of non-blood pump reason.The
The probe of one pressure transducer 12 and second pressure sensor 15 is connected on the extracorporeal circulation pipeline joint with side opening, apart from blood
Liquid pump import and export is 10cm, and is maintained at same horizontal plane with pressure transducer, blood pump, it is ensured that the standard of measurement pressure
True property.Supersonic blood instrument 16 is located at the position that distance test blood pump 13 exports 30cm；Electric ratio pipeline folder 17 is located at distance test
Blood pump exports the position of the 3rd preset length.
Further, glycerine water solution of the liquid storing bag 11 equipped with preset vol ratio.
The blood pump test system also includes water bath with thermostatic control (not shown)；The liquid storing bag is immersed in the thermostatted water
In bath.
It should be noted that preferably, preset vol ratio is 37%.If room temperature is 22-26 when hydraulic performance is tested
DEG C or so when then without using water bath with thermostatic control, if the temperature of water bath with thermostatic control can be set as 24 DEG C when relatively low by room temperature, and will survey
Pipeline in test ring road soaks in a water bath, maintains the temperature of 37% glycerine water solution in test system at 24 DEG C or so, with
The density and stickiness of simulation blood.Liquid in normal circulation be blood, but due to testing in hydraulic performance in, need measurement
Some limiting performances of blood pump, this can cause very big impact to hemocyte in blood, make character inside blood change, nothing
Faville holds the accuracy of test, it is therefore desirable to carry out hydraulic performance test with replacement solution.The glycerine water solution of 37% volume ratio
With the density similar to blood pressure and viscosity under room temperature condition of the ambient temperature for 20-29 DEG C, it is used to as test solution
Carry out the hydraulic performance test of artificial heart.
In actual applications, hydraulic performance test loop is using the PVC extracorporeal circulations pipeline of internal diameter 3/8in. and supporting
Joint connects, and makes test blood pump and liquid storing bag connect into a closed circuit.
The operation principle of this utility model embodiment hydraulic performance test loop is：500mL37% glycerine water solutions are noted
The air remained in entering artificial heart pump's hydraulic performance test loop and in draining loop.When test blood pump, test blood pump turnover
, in same plane, blood pump outlet pressure is equal to inlet pressure for mouth pressure transducer and corresponding pressure probe, and lift is designated as
0mmHg.Minimum and peak of the setting measurement scope for blood pump theoretical rotational speed.Measurement initial speed is blood pump theoretical rotational speed
Minimum, opens helical pipe folder completely, and the flow of blood pump output is the maximum stream flow under current rotating speed.Record flow number with
And corresponding blood pump import and export pressure lift is calculated, first measurement point being designated as under current rotating speed.Pipe is gradually screwed subsequently
Road is pressed from both sides, and the flow of blood pump is gradually lowered, and afterload gradually rises.0.5L/min is often reduced with flow and is set to next measurement point,
Until pipeline folder is completely closed, till flow is reduced to 0L/min.After a rotating speed has been tested, with 20% × (blood pump highest
Rotating speed-minimum speed) rpm/min gradually increases blood pump rotating speed for gradient until rotating speed reaches the blood pump theoretical rotational speed highest of setting
Value, repeatedly aforesaid operations, measure and record each measurement point blood pump flow and the lift under each rotating speed, and draw hydraulic performance respectively
Curve.
Specifically, blood pump test loop 1 includes：Hemolysis test loop；
Hemolysis test loop includes：The blood storage bag 11 ' that is sequentially connected, first pressure sensor 12 ', test blood pump
13 ', temperature sensor 14 ', second pressure sensor 15 ', supersonic blood instrument 16 ' and electric ratio pipeline folder 17 '；
First pressure sensor 12 ' positioned at test 13 ' the first preset length of import of blood pump position, for testing test blood
The pressure of 13 ' entrance of pump；
Second pressure sensor 15 ' exports the position of the first preset length positioned at test blood pump 13 ', for testing test blood
The pressure in 13 ' exit of pump；
Temperature sensor 14 ' is for the fluid temperature (F.T.) in test loop；
Supersonic blood instrument 16 ' positioned at the position of the second preset length of test blood pump discharge, for testing the hydraulic performance
The flow of test loop；
Electric ratio pipeline presss from both sides 17 ' positioned at the position of the 3rd preset length of test blood pump discharge, for adjusting the test blood
The afterload of pump；
Also include water bath with thermostatic control 18 ', blood storage bag 11 ' is immersed in water bath with thermostatic control 18 '.
In actual applications, experiment detection fluid now adopts Blood In Sheep for fresh, and experimental situation is in order to just simulate body
Chang Tiwen, blood storage bag is immersed in water bath with thermostatic control, and regulating thermostatic water-bath maintains the blood heat in test system at 37 DEG C.
All connecting pipes, joint are PVC pipeline and the joint that clinical extracorporeal circulation is used, and with good biocompatibility, keep away
Exempt from because the haemolysis that test loop is caused occurs.Meanwhile, in order to avoid germ contamination, all loop materials are disposable sterilized material
Material.
Preferably, first preset length is 10cm；Second preset length is 30cm, and the 3rd preset length is
50cm。
Further, blood storage bag 11 ' is not contacted with the inwall of the water bath with thermostatic control 18 '.
Fig. 4 is the structural representation of the blood storage bag of this utility model one embodiment.Storage in hydraulic performance test loop
Liquid bag is similarly using such as the structure in Fig. 4.As described in Figure 4, blood storage bag 11 ' including blood storage bag main body 111 ', inlet tube 112 ',
Outlet 113 ', thief hatch 114 ' and air vent 115 '.Preferably, the volume of blood storage bag main body 111 ' be 400ml, inlet tube
111 ' and the internal diameter of outlet 112 ' be 3/8in.Inlet tube 112 ' is 2cm in 111 ' internal length of blood storage bag main body,
111 ' outside length of blood storage bag main body is 10cm；Outlet 113 ' is 10cm in 111 ' internal length of blood storage bag main body,
Outlet 113 ' is 10cm in 111 ' outside length of blood storage bag main body；The fluid in blood storage bag 11 ' can be made uniformly to mix.
It should be noted that hemolysis test loop is 2m by total length by the liquid storing bag and LVAD of a 400mL
And internal diameter connects into a closed circuit for 3/8in.PVC pipelines, make one to test the pipe of the import and export end apart from liquid storing bag of blood pump
Road length is 1m.Blood pump support is fixed on test flat board, it is to avoid vibration influence blood pump operation stability.Two pressure are passed
The measuring probe of sensor is connected on the extracorporeal circulation joint of the 3/8in. with side opening, and is connected serially in loop, makes two probes
Respectively positioned at apart from the position of blood pump import and export 10cm.The probe of supersonic blood instrument is positioned at the position of blood pump exit 30cm.Will
Deionized water is filled in water bath with thermostatic control, and maintains temperature to be maintained at 37 DEG C.Suspention liquid storing bag makes which be immersed in water bath with thermostatic control, right
Also suspend in midair according to group blood storage bag and be immersed in water bath with thermostatic control, and anti-hemostasis bag is close to the heating tube on the outside of water-bath, it is to avoid local temperature
It is too high to cause haemolysis to occur.Adjustment blood pump import and export pipeline cabling, it is to avoid pipeline gives a discount affects the flowing shape of blood in pipeline
State.The position of pressure transducer and flow probe is adjusted, and is allowed to same horizontal plane is maintained at the import and export of blood pump.
The hemolysis test that this utility model is implemented strictly carries out testing adopting for blood according to the requirement of ASTM F1830
Collection and preservation transport.Experimental implementation follows the code of ASTM F1841 and carries out.Before experiment starts, will fill in haemolysis test loop
Full sterile PBS buffer, operation blood pump make to be filled with the surface of contacting blood in loop with 2000rpm rotation speed operations 10min
After dividing moistening, the PBS in loop is emptied.By 500mL CPDA-1 and the fresh Sheep Blood 1 now adopted：9 ratios are fully mixed
Even mixing blood is placed in 37 DEG C of waters bath with thermostatic control after rewarming, is slowly noted blood is tested with the blood exchange transfusion set with Micro- Bolt Filter
Enter in test loop, fully drain the air in loop, prevent from remaining bubble aggravation haemolysis and affecting pressure and flow measurement
Accuracy.Experiment starts the packed cell volume of front determination experiment group and matched group blood respectively.With reference to the knot of hydraulic performance experiment
Really, run blood pump and blood pump is set and (flow of blood pump is 5L/min, and lift is 100mmHg) is tested under standard condition.
Therapy lasted 6H, the storage of 1H, 2H, 3H, 4H, 5H and 6H respectively at experimental group and matched group before blood pump operating, after blood pump operating
Extract 3 1mL blood samples to be respectively placed in 1.5mL sterile centrifugation tubes in blood bag, 3000rpm centrifugations 5min under the conditions of 4 DEG C, so
Draw 400 μ l supernatant afterwards to be put in new aseptic 1.5mL centrifuge tubes, under the conditions of 4 DEG C, 3000rpm recentrifuge 5min, little
Free hemoglobin concentration in heart Aspirate supernatant measurement blood plasma, measurement standard hemolytic index (Normalized index of
Hemolysis, NIH) and correct the molten of hemolytic index (Modified index of hemolysis, MIH) evaluation test blood pump
Courageous and upright energy.
The implication of standard haemolytic index (NIH) often pumps out the plasma free blood discharged during 100L standardization blood for blood pump
The grams formula of Lactoferrin is as follows,
Wherein, Δ FreeHb is the changing value of the plasma-free hemoglobin concentration in sampling interval duration, and unit is g/
L；V is the volume of the test blood volume in testing in vitro loop, and unit is L；Hct is packed cell volume, and unit is %；Q is blood pump
The flow of output, unit are L/min；T is sampling interval duration, and unit is min.Therefore the unit of NIH is g/100L.
The no unit of amendment hemolytic index (MIH), is a nondimensional formula, NIH is entered by hemoglobin concentration
Row is further corrected.Formula is as follows,
Wherein, Δ FreeHb is the changing value of the plasma-free hemoglobin concentration in sampling interval duration, and unit is mg/
L；V is the volume of the test blood volume in testing in vitro loop, and unit is L；Hct is packed cell volume, and unit is %；Q is blood pump
The flow of output, unit are L/min；T is sampling interval duration, and unit is min；Hb is that experiment starts front blood sample total hemoglobin
Concentration, unit are mg/L.
In actual test loop, flow monitoring uses Transonic Ts410 supersonic blood instrument, be measurement blood and
The goldstandard of fluid flow, probe for measuring flow select Transonic ME-9PXL pipelines clip probe, are 3/8in.PVC pipes
Road dedicated probe, is clamped in measurement process on the outside of duct wall, is not contacted with blood, it is to avoid affect haemolysis test result.Temperature
Degree sensor senses instrument, connection surface adhesive thermosensitive probe, the pipeline with blood pump exit using OMEGA thermistor temps
Wall is closely sticked, and measures the fluid temperature (F.T.) in pipeline.
Preferably, the equipment in blood pump test loop 1 is followed for 2m, the PVC of a diameter of 3/8in. in vitro by total length
Endless tube road connects into closed circuit.
Data acquisition equipment 4 includes pressure data harvester, and the pressure data harvester is used to gathering described the
The test data of one pressure transducer and the second pressure sensor.
The blood pump test system of this utility model embodiment, with following Advantageous Effects：
Detection evaluation criterion：There is provided a standardized test environment, using the detection of goldstandard generally acknowledged in the industry
Equipment, specifies the specification and Connecting quantity of consumptive material, with reference to the experimental technique of ASTM F1841, it is ensured that the accuracy of detection project and
Repeatability, the test for domestic artificial heart provide unified examination criteria.
Modularized design：Can be with selecting corresponding test module according to detection project and detection demand, install convenient, while
Meet the accuracy of measurement.
Regionalization design：Test platform is divided into test block and battery limits according to function, is carried out with transparent organic glass point
Every, test loop is placed in into test block, electrical equipment and measuring apparatus are positioned over battery limits, it is to avoid the operation and liquid in experimentation
Body damage equipment affects the accuracy for detecting.Number can be measured by lucite Real Time Observation in experimental implementation simultaneously
Value, is easy to adjust the running status and parameter of detection loop.
Portability is designed：Test platform is built according to frame-type from aluminium section bar, conveniently builds and removes；Install ten thousand in bottom
To wheel, it is easy to the carrying and fixation of platform.
Automatic measurement：The actually detected demand of each measure the item is programmed, disparity items detection program is set, from
Dynamic measurement and output measurement data, by the running status of looped system regulating system, according to the measurement procedure in program
The hydraulic performance and hemolysis test (haemolysis test needs additional sample to chemically examine) of blood pump is carried out successively.
In actual applications, pressure data harvester leads physiological monitor using GE Dush more than 4000, for testing
The import and export pressure of middle monitoring blood pump.Computer connects blood pump controller, adjusts blood pump rotating speed by control software, and by blood pump
Real-time speed feedback be displayed in control window in, for controlling and monitoring the running status of blood pump.
The blood pump test system that this utility model is provided, separates according to function and arranges experimental implementation area and testing equipment
Blood pump test loop and controller are placed in experimental implementation area by area, and parameter input device and data acquisition equipment are positioned over
Testing equipment area, it is to avoid the operation and liquid damage equipment in experimentation, affects the accuracy of detection.This utility model is provided
Blood pump test system, the performance test for blood pump provides a standardized test environment, using gold generally acknowledged in the industry
The testing equipment of standard, the test for artificial heart provide unified testing standard, are selected according to detection project and detection demand
Corresponding test module, install convenient, while meeting the accuracy of measurement.The actually detected demand of each measure the item is compiled
Journey, arranges disparity items detection program, automatic measurement and output measurement data, by the operation of looped system regulating system
State, carries out the hydraulic performance and hemolysis test of blood pump successively according to the measurement procedure in program, it is also possible to self-defined
Test parameter.
It should be noted that term " including ", "comprising" or its any other variant are intended to the bag of nonexcludability
Contain, so that a series of process, method, article or equipment including key elements is not only including those key elements, but also including
Other key elements being not expressly set out, or also include the key element intrinsic for this process, method, article or equipment.
In the absence of more restrictions, the key element for being limited by sentence "including a ...", it is not excluded that including the key element
Process, method, also there is other identical element in article or equipment.
In description of the present utility model, a large amount of details are illustrated.Although it is understood that, it is of the present utility model
Embodiment can be put into practice in the case where not having these details.In some instances, be not been shown in detail known method,
Structure and technology, so as not to obscure the understanding of this description.Similarly, it will be appreciated that disclose to simplify this utility model
And one or more in helping to understand in terms of each utility model, exemplary embodiment of the present utility model is retouched above
In stating, each feature of the present utility model is grouped together in single embodiment, figure or descriptions thereof sometimes.However,
The method of the disclosure be intended to following in reflection should not be explained：This utility model i.e. required for protection is required than in each power
The more features of feature is expressly recited in requiring by profit.More precisely, as the following claims reflect, it is practical new
It is less than all features of single embodiment disclosed above in terms of type.Therefore, it then follows the claim of specific embodiment
Thus book is expressly incorporated in the specific embodiment, and wherein each claim itself is used as independent enforcement of the present utility model
Example.
Above example is merely to illustrate the technical solution of the utility model, rather than a limitation；Although with reference to aforementioned reality
Apply example to be described in detail this utility model, it will be understood by those within the art that：Which still can be to front
State the technical scheme described in each embodiment to modify, or equivalent is carried out to which part technical characteristic；And these
Modification is replaced, and does not make the essence of appropriate technical solution depart from the spirit and model of each embodiment technical scheme of this utility model
Enclose.
Claims (10)
1. a kind of blood pump test system, it is characterised in that include：
Separate the experimental implementation area and testing equipment area for arranging；
The experimental implementation area includes blood pump test loop and controller, and the controller is for according to control parameter control institute
State the equipment in blood pump test loop；
The testing equipment area includes parameter input device and data acquisition equipment, and the parameter input device is used to send control
To the controller, the data acquisition equipment is used for the test data for gathering the blood pump test loop to parameter.
2. blood pump test system according to claim 1, it is characterised in that the blood pump test loop includes：Water
Power performance test loop；
The hydraulic performance test loop includes：The liquid storing bag that is sequentially connected, first pressure sensor, test blood pump, temperature are passed
Sensor, second pressure sensor, supersonic blood instrument and electric ratio pipeline folder；
The liquid storing bag is suspended to the position of the first preset height above the test blood pump；
The first pressure sensor is positioned at apart from the position of first preset length of test blood pump inlet, described for testing
Pressure at test blood pump inlet；
The second pressure sensor is positioned at apart from the position of first preset length of test blood pump discharge, described for testing
Pressure at test blood pump discharge；
The fluid temperature (F.T.) that the temperature sensor is used in test loop；
The supersonic blood instrument positioned at apart from the position of second preset length of test blood pump discharge, for testing the waterpower
The flow of performance test loop；
The electric ratio pipeline is pressed from both sides positioned at apart from the position of the 3rd preset length of test blood pump discharge, for adjusting the survey
The afterload of examination blood pump.
3. blood pump test system according to claim 2, it is characterised in that
First preset height is 50cm；
First preset length is 10cm；
Second preset length is 30cm；
3rd preset length is 50cm.
4. blood pump test system according to claim 2, it is characterised in that the liquid storing bag and test loop are equipped with pre-
If the glycerine water solution of volume ratio.
5. blood pump test system according to claim 2, it is characterised in that also including water bath with thermostatic control；
The liquid storing bag is immersed in the water bath with thermostatic control.
6. blood pump test system according to claim 1, it is characterised in that the blood pump test loop includes：It is molten
Courageous and upright energy test loop；
The hemolysis test loop includes：The blood storage bag that is sequentially connected, first pressure sensor, test blood pump, temperature are passed
Sensor, second pressure sensor, supersonic blood instrument and electric ratio pipeline folder；
The first pressure sensor is located at the position of first preset length of test blood pump inlet, for testing the test
The pressure of blood pump entrance；
The second pressure sensor is located at the position of first preset length of test blood pump discharge, for testing the test
The pressure in blood pump exit；
The fluid temperature (F.T.) that the temperature sensor is used in test loop；
The supersonic blood instrument is located at the position of second preset length of test blood pump discharge, for testing the hemolysis
The flow of test loop；
The electric ratio pipeline folder is located at the position of the 3rd preset length of test blood pump discharge, for adjusting the test blood
The afterload of pump；
Also include water bath with thermostatic control, the blood storage bag is immersed in the water bath with thermostatic control.
7. blood pump test system according to claim 6, it is characterised in that
First preset length is 10cm；
Second preset length is 30cm；
3rd preset length is 50cm.
8. blood pump test system according to claim 6, it is characterised in that the blood storage bag not with the water bath with thermostatic control
Inwall contact.
9. the blood pump test system according to any one of claim 2-8, it is characterised in that the blood pump test wrapper
Equipment in road by total length be 2m, a diameter of 3/8in. PVC extracorporeal circulation pipelines connect into closed circuit, blood pump enters
The pipeline total length of the port of export is respectively 1m.
10. the blood pump test system according to any one of claim 2-8, it is characterised in that the data acquisition equipment
Including pressure data harvester, the pressure data harvester is used to gather the first pressure sensor and described second
The test data of pressure transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620662643.7U CN206103035U (en) | 2016-06-28 | 2016-06-28 | Blood pump testing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620662643.7U CN206103035U (en) | 2016-06-28 | 2016-06-28 | Blood pump testing system |
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| CN206103035U true CN206103035U (en) | 2017-04-19 |
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ID=58509856
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903096A (en) * | 2016-06-28 | 2016-08-31 | 清华大学 | Blood pump test system |
| CN108355178A (en) * | 2018-03-01 | 2018-08-03 | 北京安生生物技术有限责任公司 | A kind of blood storage bag for extracorporeal blood test |
| CN114790982A (en) * | 2022-03-25 | 2022-07-26 | 浙江迪远医疗器械有限公司 | Blood pump running state monitoring method and device, electronic equipment and storage medium |
| CN115177860A (en) * | 2022-09-08 | 2022-10-14 | 深圳核心医疗科技有限公司 | Performance adjusting method and device |
-
2016
- 2016-06-28 CN CN201620662643.7U patent/CN206103035U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903096A (en) * | 2016-06-28 | 2016-08-31 | 清华大学 | Blood pump test system |
| CN105903096B (en) * | 2016-06-28 | 2019-02-05 | 清华大学 | A kind of blood pump test macro |
| CN108355178A (en) * | 2018-03-01 | 2018-08-03 | 北京安生生物技术有限责任公司 | A kind of blood storage bag for extracorporeal blood test |
| CN114790982A (en) * | 2022-03-25 | 2022-07-26 | 浙江迪远医疗器械有限公司 | Blood pump running state monitoring method and device, electronic equipment and storage medium |
| CN114790982B (en) * | 2022-03-25 | 2024-03-05 | 浙江迪远医疗器械有限公司 | Blood pump running state monitoring method and device, electronic equipment and storage medium |
| CN115177860A (en) * | 2022-09-08 | 2022-10-14 | 深圳核心医疗科技有限公司 | Performance adjusting method and device |
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