CN206366059U - A kind of ultrafiltration balance control device and continuous blood purification device - Google Patents
A kind of ultrafiltration balance control device and continuous blood purification device Download PDFInfo
- Publication number
- CN206366059U CN206366059U CN201621013332.4U CN201621013332U CN206366059U CN 206366059 U CN206366059 U CN 206366059U CN 201621013332 U CN201621013332 U CN 201621013332U CN 206366059 U CN206366059 U CN 206366059U
- Authority
- CN
- China
- Prior art keywords
- stepper motor
- pump
- ultrafiltration
- liquid pump
- balance control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- External Artificial Organs (AREA)
Abstract
The utility model is related to medical instruments field, and in particular to a kind of ultrafiltration balance control device and continuous blood purification device.Wherein, ultrafiltration balance control device includes：First stepper motor, for driving displacement liquid pump；Second stepper motor, for driving waste drains pump；3rd stepper motor, for driving dialysis liquid pump；Communication module, is respectively connected with the first stepper motor, the second stepper motor and the 3rd stepper motor；Processor, is connected with communication module, the ultrafiltration volume for controlling continuous blood purification device according to the first stepper motor, the rotating speed of the second stepper motor and the 3rd stepper motor or the angle turned over.The utility model passes through, realized according to the rotating speed of stepper motor or the angle turned over and the ultrafiltration volume of continuous blood purification device is controlled, so that the continuous blood purification device of embodiment is not limited by environment, the accurate control of ultrafiltration balance can be realized under any environment, applicability is wide.
Description
Technical field
The utility model is related to medical instruments field, and in particular to a kind of ultrafiltration balance control device and continuous blood purification
Device.
Background technology
In medical instruments field, continuous blood purification device refers to the extracorporal circulatory system that blood is set up by electromechanical assembly,
The devices such as filtering, absorption, heat exchange are added on blood circulation path, so that human organ is simulated, such as part of the heart, lung, liver, kidney
Function, reaches treatment disease and the effect sustained life.For patient's renal failure, multiple organs failure, acute poisoning, electrolyte
The clinical symptoms such as disorder, are given treatment to by a line, and internal excessive moisture is removed in time, correct hyperkalemia, are removed noxious material, are
Next treatment is raced against time.It is that a very important treatment is joined wherein for the control that ultrafiltration in patient blood (dehydration) is measured
Number, directly influences the effect for the treatment of, in addition patient life security.
At present, all it is that control is realized by positive displacement and the big general principle of Weighing type two in most apparatus for purifying blood
Ultrafiltration volume processed, positive displacement is subdivided into counter balance pocket and volume fills formula, and such as Germany Bei Lang Dialog+ hemo systems are exactly the flat of use
Weighing apparatus chamber adds ultrafiltrate pump technology, and counter balance pocket is used for realizing that one inputted between fresh dialysis fluid and outflow waste liquid is in a basic balance,
Simultaneously realized with special ultrafiltrate pump ultrafiltration (dehydration) measure control, although this mode precision is high, it is complicated, it is necessary to
8 magnetic valves cooperate.These devices all volume weights are excessive, are unfavorable for miniaturization device, it is impossible to be satisfied with movable type
CRRT first aid schemes.The mode directly weighed realizes that control and realizes dialyzate, displacement liquid and blood and waste liquid at ultrafiltration volume
Between fluid balance relation, although be precision highest, but due to its requirement stable without essence could be carried out in the environment of rocking
Really metering, causes the technology can not be used in such as ambulance environment is frequently rocked.
Utility model content
The technical problems to be solved in the utility model is that apparatus for purifying blood requirement in the prior art is rocked in stable nothing
In the environment of could carry out accurate measurement, cause the technology can not be used frequently rocking in such as ambulance environment, so as to carry
For a kind of ultrafiltration balance control device and continuous blood purification device.
The one side of the utility model embodiment is there is provided a kind of ultrafiltration balance control device, for controlling continuous blood
The ultrafiltration volume of liquid purifier, the continuous blood purification device includes：Liquid pump, waste drains pump and dialysis liquid pump are replaced, wherein, institute
Stating ultrafiltration balance control device includes：First stepper motor, for driving the displacement liquid pump；Second stepper motor, for driving
Move the waste drains pump；3rd stepper motor, for driving the dialysis liquid pump；Communication module, with first stepper motor, institute
State the second stepper motor and the 3rd stepper motor is respectively connected with；Processor, is connected with the communication module, for root
According to first stepper motor, the rotating speed of second stepper motor and the 3rd stepper motor or the angle control turned over
Make the ultrafiltration volume of the continuous blood purification device.
Further, set respectively on first stepper motor, second stepper motor and the 3rd stepper motor
It is equipped with：Speed probe, the rotating speed for detecting corresponding stepper motor；And/or, angular transducer is corresponding for recording
The angle that stepper motor is turned over.
Further, first stepper motor, second stepper motor and the 3rd stepper motor and gateway connect
Connect, the communication module is additionally operable to the communication set up between the processor and the gateway.
Further, used between first stepper motor, second stepper motor and the 3rd stepper motor
Serial connection.
Further, the processor is single-chip microcomputer.
Further, in addition to：Power module, with first stepper motor, second stepper motor, the described 3rd
Stepper motor and the processor are respectively connected with.
The another aspect of the utility model embodiment there is provided a kind of continuous blood purification device, including：Displacement liquid pump,
Waste drains pump, dialysis liquid pump and dialyzer, in addition to：The ultrafiltration balance control device, for control by it is described displacement liquid pump,
The flow of the waste drains pump and the dialysis liquid pump.
Further, the displacement liquid pump, the waste drains pump and the dialysis liquid pump are ceramic plunger pump.
The utility model embodiment can reach following technique effect：
1st, displacement liquid pump is driven respectively by using the first stepper motor, the second stepper motor and the 3rd stepper motor, give up
Liquid pump and dialysis liquid pump, processor are communicated by communication module with stepper motor, read rotating speed or the institute of stepper motor
The angle turned over, and rotating speed according to stepper motor or the angle that is turned over realize the ultrafiltration volume to continuous blood purification device
Control so that the continuous blood purification device of embodiment is not limited by environment, can realize that ultrafiltration is balanced under any environment
Accurate control, applicability is wide.
2nd, by using speed probe and/or angular transducer, relative to using flow sensor, (such as ultrasonic flow rate is passed
Sensor) the directly scheme of the flow of detection pump cost it is lower, and blood-flow circuit need not be changed.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the theory diagram of a specific example of continuous blood purification device in the utility model embodiment 1；
Fig. 2 is the theory diagram of a specific example of ultrafiltration balance control device in the utility model embodiment 1；
Fig. 3 is the flow chart of a specific example of ultrafiltration balance control method in the utility model embodiment 3.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outer " are, based on orientation shown in the drawings or position relationship, to be only
Described for the ease of description the utility model and simplifying, rather than to indicate or imply that signified device or element must have specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary,
The connection of two element internals is can also be, can be wireless connection or wired connection.For the common skill of this area
For art personnel, concrete meaning of the above-mentioned term in the utility model can be understood with concrete condition.
As long as in addition, technical characteristic involved in the utility model different embodiments disclosed below is each other
Not constituting conflict can just be combined with each other.
Embodiment 1
The present embodiment provides a kind of ultrafiltration balance control device, and the ultrafiltration balance control device is used to control continuous blood net
Disguise the ultrafiltration volume put, wherein, wherein, continuous blood purification device as shown in figure 1, including：Replace liquid pump 1, waste drains pump 2 and thoroughly
Liquid pump 3 is analysed, the continuous blood purification device also includes：Blood pump 4 and dialyzer 5.Concrete operating principle is：Pass through a blood pump 4
(be typically peristaltic pump) from internal extraction, conveys the blood of human body into dialyzer 5, displacement liquid by replace liquid pump 1 input to
Blood circuit, dialyzate is inputted to dialyzer 5 by liquid pump 3 of dialysing, and the waste liquid of dialysis outlet is discharged by a waste drains pump 2.
During general therapeutic, the treatment parameter such as suitable ultrafiltration volume and ultrafiltration rate can be provided according to patient's actual conditions, wherein, ultrafiltration
Amount is exactly the relative dehydrating amount that is filtered out from blood of human body, that is, the total liquid measure of input and the total liquid measure of output of blood circuit difference
Value, total its value of liquid measure of input of blood circuit is equal to the displacement liquid total amount through replacing the input of liquid pump 1 and inputted through liquid pump 3 of dialysing
Dialyzate total amount, the total liquid measure of output of blood circuit is exactly the waste liquid total amount exported through waste drains pump 2.
As shown in Fig. 2 the ultrafiltration balance control device of the present embodiment includes：First stepper motor 11, the second stepper motor
21st, the 3rd stepper motor 31, communication module 6 and processor 7.
First stepper motor 11 is used to drive displacement liquid pump 1；Second stepper motor 21 is used to drive waste drains pump 2；3rd step
Stepper motor 31 is used to drive dialysis liquid pump 3；The stepper motor 11 of communication module 6 and first, the second stepper motor 21 and the 3rd stepping
Motor 31 is respectively connected with；Processor 7 is connected with communication module 6, for according to the first stepper motor 11, the second stepper motor
21 and the 3rd stepper motor 31 rotating speed or the angle that is turned over control the ultrafiltration volume of continuous blood purification device.
In the present embodiment, using driving stepper motor pump (displacement liquid pump 1, waste drains pump 2 and dialysis liquid pump 3), the present embodiment
In pump include but is not limited to plunger pump, when pump be plunger pump when, by the continuous convert rotational motion of stepper motor be plunger rod
Rotation and axial direction reciprocating motion so that the power needed for providing liquid circulation.In the specific implementation, stepper motor can be with
Using the stepper motor of the UIM242C04P-IE/57-56 integrations of UIROBOT companies.
The operation principle of the ultrafiltration balance control device is：Processor 7 reads the first stepper motor 11, the second stepping respectively
The current rotating speed of the stepper motor 31 of motor 21 and the 3rd, the stream of liquid in respective pump is replaced into by the current rotating speed of stepper motor
Speed, and then the flow for flowing through each pump is calculated, current ultrafiltration volume is thus calculated, in order to judge the shape of current ultrafiltration balance
Condition.When being unsatisfactory for requiring, by calculating the rotating speed of each stepper motor, it is respectively controlled.Utility model people discovery, due to
The rotating speed of stepper motor and the flow rate of liquid of pump is flowed through into positive correlation, the rotating speed of stepper motor is bigger, and flow rate of liquid is also bigger.
On the basis of this principle, the letter of flow rate of liquid and stepper motor rotating speed can be drawn by pre-trial statistics or analogue simulation
Number relation, in ultrafiltration balance control process is carried out, directly calculates ultrafiltration using the functional relation by the rotating speed of stepper motor
Amount, and control the rotating speed of stepper motor to realize the regulation of ultrafiltration volume.
On the other hand, the angle turned over by stepper motor can also calculate the fluid flow by pump.Specifically,
Stepper motor circles (i.e. drive shaft rotates a circle 360 degree), the fluid flow essentially fixed value of pump is flowed through, when motor turns
Angle when being less than 360 degree, flow through the fluid flow of pump different according to the angle difference turned.It therefore, it can pre-establish one
The function model for flowing through the fluid flow of pump in the individual angle cycle between the angle that turns over, can pass through analogue simulation or examination
Test is obtained.So, after angle that stepper motor is turned over is detected, the cycle that can be turned over according to stepper motor and
Initial phase and the difference of current phase calculate the fluid flow for flowing through pump.Specifically, calculating process is as follows：The periodicity turned over
Each all corresponding fluid floies are multiplied by, Part I flow is obtained；Initial phase and current phase are read from above-mentioned function model
The poor corresponding fluid flow of position；Both are added the fluid flow for obtaining currently flowing through pump.This mode is relative to using rotating speed
To calculate flow, its computational accuracy is higher.
According to the utility model embodiment, by using the first stepper motor, the second stepper motor and the 3rd stepper motor
Liquid pump, waste drains pump and dialysis liquid pump are replaced in driving respectively, and processor is communicated by communication module with stepper motor, reads step
The rotating speed of stepper motor or the angle turned over, and rotating speed according to stepper motor or the angle that is turned over realized to continuous blood
The ultrafiltration volume control of liquid purifier so that the continuous blood purification device of embodiment is not limited by environment, under any environment
The accurate control of ultrafiltration balance can be realized, applicability is wide.
As a preferred embodiment, the first stepper motor, the second stepper motor and the 3rd stepping in the present embodiment
It is respectively arranged with motor：Speed probe, the rotating speed for detecting corresponding stepper motor；And/or, angular transducer is used
In recording the angle that corresponding stepper motor is turned over.
In the present embodiment, turn on the first stepper motor, the second stepper motor and the 3rd stepper motor, being respectively arranged with
Fast sensor and/or angular transducer, e.g., set the first speed probe and/or first angle to sense on the first stepper motor
Set on device, the second stepper motor and the 3rd is set on the second speed probe and/or second angle sensor, the 3rd stepper motor
Speed probe and/or third angle sensor.
In the present embodiment, processor directly can be connected with speed probe and angular transducer, so as to read corresponding
The rotating speed of stepper motor or the angle turned over, wherein, for angular transducer, because the drive shaft of motor turns around as 360
Degree, therefore, the rotating speed of stepper motor can be also obtained by the detection of the anglec of rotation.
In the present embodiment, by using speed probe and/or angular transducer, relative to using flow sensor (such as
Ultrasonic flow transducer) the directly scheme of the flow of detection pump cost it is lower, and blood-flow circuit need not be changed.
It should be noted that in the utility model embodiment, the angle that motor is turned over can refer to initial phase in working as
The difference of preceding phase or refer to turned over total angle.Such as：Motor turns over 3 circles, and initial phase is 0 degree, and current phase is 30
Degree, then the angle turned over described in the utility model above-described embodiment can be 30 degree or refer to 1110 degree.Such as
Fruit represents turned over angle using the former, then when calculating fluid flow, in addition it is also necessary to read the number of turns that motor is turned over.
As an alternative embodiment, in the case where the pump of continuous blood purification device is all using obstruction pump, should
Plunger pump can also possess flow measurement function.Specifically, the flow of each plunger single-stroke be can by demarcation and can
Know, flow through number of stroke of the total flow of each pump just to plunger activity and be directly proportional, under the calculating and control of processor, just
It can realize the flow control of displacement liquid pump, waste drains pump and the single pump of liquid pump of dialysing, and pump finally cooperates the super of generation
Filter amount.
Further, because plunger pump has step motor control, it that is to say, each plunger single-stroke correspondence is certain
The angle that stepper motor is turned over, therefore, liquid flow can be directly calculated by using the corresponding relation by the rotating speed of motor
Amount.
As a preferred embodiment, the first stepper motor, the second stepper motor and the 3rd stepper motor and gateway
Connection, communication module is additionally operable to set up the communication between processor and gateway.First stepper motor, the second stepper motor and the 3rd
Using serial connection between stepper motor.
Communication module 6 is connected progress digital communication by serial network with displacement liquid pump 1, waste drains pump 2 and dialysis liquid pump 3,
Specifically, can carry out digital communication with the first stepper motor 11, the second stepper motor 21 and the 3rd stepper motor 31.
Specifically, the UART serial ports that communication module 6 can carry processor 7 is converted to the RS232 interfaces of standard, passes through
RS232 interfaces are connected with the gateway of integrated stepper motor, the one that displacement liquid pump 1, waste drains pump 2 and dialysis liquid pump 3 are used
Changing stepper motor has using serial connection between CAN interface, three stepper motors, and processor 7 passes through read write command
Mode easily sets the rotating speed of motor and reads the angle that motor is turned over.
Further, communication module 6 can use SP3232 chips, and SP3232 chips are a kind of Transistor-Transistor Logic level and RS232 electricity
The chip of flat turn, the UART serial ports that processor 7 is carried is converted to the RS232 interfaces of standard, is easy to and integrated stepping electricity
The CAN/RS232 gateways connection of machine, extends the distance of communication, improves the reliability of communication.
Preferably, the processor in the present embodiment is single-chip microcomputer.
In specific implementation process, processor can preferred TI companies MSP430F449 single-chip microcomputers.Topmost feature
It is super low-power consumption, 0.1 μ A RAM keep pattern, less than 250 μ A/MIPS, integrated various ip intelligent peripherals support that jtag interface is online
Detail programming, is highly suitable for intelligence instrument and battery powered portable equipment.
It is further preferred that as shown in Fig. 2 ultrafiltration balance control device also includes：Power module 8, with the first stepping electricity
Machine 11, the second stepper motor 21, the (not shown) of the 3rd stepper motor 31 and processor 7 are respectively connected with.
Power module in the present embodiment can be inputted using 24V transformer-supplieds, on the single-chip microcomputer of the present embodiment, also be set
Modulus conversion chip is equipped with, the DC-5V simulation supply voltages of the modulus conversion chip (can use CC10- by DC-DC module
2405) obtain, single-chip microcomputer and modulus conversion chip power required 3.3V voltages by using LDO linear voltage voltage-stablizers
LM1117-3.3 is obtained.
Embodiment 2
The present embodiment provides a kind of continuous blood purification device, and the basic structure of the device is as shown in Figure 1.The present embodiment
In, continuous blood purification device also includes：Ultrafiltration balance control device described in the utility model embodiment 1, for controlling to lead to
Cross the flow of displacement liquid pump 1, waste drains pump 2 and liquid pump 3 of dialysing.To realize ultrafiltration balance control.
According to the utility model embodiment, by using the ultrafiltration balance control device of the utility model embodiment 1, according to
The rotating speed of stepper motor or the angle turned over, which are realized, to be controlled the ultrafiltration volume of continuous blood purification device so that embodiment
Continuous blood purification device is not limited by environment, and the accurate control of ultrafiltration balance, applicability can be realized under any environment
Extensively.
As a kind of preferred embodiment, displacement liquid pump, waste drains pump and dialysis liquid pump are ceramic plunger pump.
Displacement liquid pump, waste drains pump, dialysis liquid pump all employ a kind of high-precision ceramic plunger pump of integrated bus formula, should
Ceramic plunger pump is by way of Precision Machining assembling and Experimental Calibration, and monomer flow accuracy reaches one thousandth.Because putting
It is all to use high technology ceramics plunger pump to change liquid pump, waste drains pump, dialysis liquid pump, and the flow of each plunger single-stroke is to pass through
Demarcation and it is knowable, flowing through the total flow of each pump, just the number of stroke movable to plunger is directly proportional, in the calculating and control of processor
Under system, it is possible to realize that the flow control of displacement liquid pump, waste drains pump and the single pump of liquid pump of dialysing, and pump finally cooperate
The ultrafiltration volume of generation.
Embodiment 3
Originally apply example and a kind of ultrafiltration balance control method is provided, this method can be used for the ultrafiltration of the utility model embodiment 1
Balance control device, specifically, can be performed by processor 7, as shown in figure 3, the ultrafiltration balance control method includes：
Step S301, reads current rotating speed or the institute of the first stepper motor, the second stepper motor and the 3rd stepper motor
The angle turned over.
Step S302, according to the rotating speed of the first stepper motor or the angle calculation displacement liquid turned over by replacing liquid pump
Present flow rate, the current stream that waste drains pump is passed through according to the rotating speed of the second stepper motor or the angle calculation waste liquid turned over
Amount, the present flow rate that liquid pump of dialysing is passed through according to the rotating speed of the 3rd stepper motor or the angle calculation dialyzate turned over.
Step S303, according to displacement liquid by replace the present flow rate of liquid pump, waste liquid by the present flow rate of waste drains pump and
Dialyzate calculates current ultrafiltration volume by the present flow rate for liquid pump of dialysing.
Step S304, control command is generated by ultrafiltration volume, to control the first stepper motor, the second stepper motor and respectively
The rotating speed of three stepper motors.
What processor 7 read the first stepper motor 11, the second stepper motor 21 and the 3rd stepper motor 31 respectively works as forward
Speed, the flow velocity of liquid in respective pump is replaced into by the current rotating speed of stepper motor, and then calculates the flow for flowing through each pump, thus
Current ultrafiltration volume is calculated, in order to judge the situation of current ultrafiltration balance.When being unsatisfactory for requiring, by calculating each step
The rotating speed of stepper motor, is respectively controlled.Utility model people has found, due to stepper motor rotating speed and flow through the flow rate of liquid of pump
Into positive correlation, the rotating speed of stepper motor is bigger, and flow rate of liquid is also bigger.On the basis of this principle, pre-trial can be passed through
Statistics or analogue simulation draw the functional relation of flow rate of liquid and stepper motor rotating speed, are carrying out ultrafiltration balance control process
In, ultrafiltration volume is directly calculated by the rotating speed of stepper motor using the functional relation, and control the rotating speed realization of stepper motor super
The regulation of filter amount.
On the other hand, the angle turned over by stepper motor can also calculate the fluid flow by pump.Specifically,
Stepper motor circles (i.e. drive shaft rotates a circle 360 degree), the fluid flow essentially fixed value of pump is flowed through, when motor turns
Angle when being less than 360 degree, flow through the fluid flow of pump different according to the angle difference turned.It therefore, it can pre-establish one
The function model for flowing through the fluid flow of pump in the individual angle cycle between the angle that turns over, can pass through analogue simulation or examination
Test is obtained.So, after angle that stepper motor is turned over is detected, the cycle that can be turned over according to stepper motor and
Initial phase and the difference of current phase calculate the fluid flow for flowing through pump.Specifically, calculating process is as follows：The periodicity turned over
Each all corresponding fluid floies are multiplied by, Part I flow is obtained；Initial phase and current phase are read from above-mentioned function model
The poor corresponding fluid flow of position；Both are added the fluid flow for obtaining currently flowing through pump.This mode is relative to using rotating speed
To calculate flow, its computational accuracy is higher.
According to the utility model embodiment, by the angle for reading the rotating speed of stepper motor or being turned over, and according to step
The rotating speed of stepper motor or the angle turned over, which are realized, to be controlled the ultrafiltration volume of continuous blood purification device so that the company of embodiment
Continuous apparatus for purifying blood is not limited by environment, and the accurate control of ultrafiltration balance can be realized under any environment, and applicability is wide.
Alternatively, in the present embodiment, processor directly can be connected with speed probe and angular transducer, so as to read
The rotating speed of corresponding stepper motor or the angle turned over, wherein, for angular transducer, because the drive shaft of motor turns around
For 360 degree, therefore, the rotating speed of stepper motor can also be obtained by the detection of the anglec of rotation.
As an alternative embodiment, in the case where the pump of continuous blood purification device is all using obstruction pump, should
Plunger pump can also possess flow measurement function.Specifically, the flow of each plunger single-stroke be can by demarcation and can
Know, flow through number of stroke of the total flow of each pump just to plunger activity and be directly proportional, under the calculating and control of processor, just
It can realize the flow control of displacement liquid pump, waste drains pump and the single pump of liquid pump of dialysing, and pump finally cooperates the super of generation
Filter amount.
Further, because plunger pump has step motor control, it that is to say, each plunger single-stroke correspondence is certain
The angle that stepper motor is turned over, therefore, liquid flow can be directly calculated by using the corresponding relation by the rotating speed of motor
Amount.
Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the application.
Claims (8)
1. a kind of ultrafiltration balance control device, it is characterised in that the ultrafiltration volume for controlling continuous blood purification device, the company
Continuous apparatus for purifying blood includes：Liquid pump, waste drains pump and dialysis liquid pump are replaced, wherein, the ultrafiltration balance control device includes：
First stepper motor, for driving the displacement liquid pump；
Second stepper motor, for driving the waste drains pump；
3rd stepper motor, for driving the dialysis liquid pump；
Communication module, is respectively connected with first stepper motor, second stepper motor and the 3rd stepper motor；
Processor, is connected with the communication module, for according to first stepper motor, second stepper motor and institute
State the rotating speed of the 3rd stepper motor or the angle that is turned over controls the ultrafiltration volume of the continuous blood purification device.
2. ultrafiltration balance control device according to claim 1, it is characterised in that first stepper motor, described
It is respectively arranged with two stepping motor and the 3rd stepper motor：
Speed probe, the rotating speed for detecting corresponding stepper motor；And/or
Angular transducer, for recording the angle that corresponding stepper motor is turned over.
3. ultrafiltration balance control device according to claim 1 or 2, it is characterised in that first stepper motor, described
Second stepper motor and the 3rd stepper motor are connected with gateway, and the communication module is additionally operable to set up the processor and institute
State the communication between gateway.
4. ultrafiltration balance control device according to claim 1 or 2, it is characterised in that first stepper motor, described
Using serial connection between second stepper motor and the 3rd stepper motor.
5. ultrafiltration balance control device according to claim 1 or 2, it is characterised in that the processor is single-chip microcomputer.
6. ultrafiltration balance control device according to claim 1 or 2, it is characterised in that also include：Power module, with institute
The first stepper motor, second stepper motor, the 3rd stepper motor and the processor is stated to be respectively connected with.
7. a kind of continuous blood purification device, including：Replace liquid pump, waste drains pump, dialysis liquid pump and dialyzer, it is characterised in that
Also include：Any one of claim 1 to the 6 ultrafiltration balance control device, for controlling by the displacement liquid pump, described useless
The flow of liquid pump and the dialysis liquid pump.
8. continuous blood purification device according to claim 7, it is characterised in that the displacement liquid pump, the waste drains pump
It is ceramic plunger pump with the dialysis liquid pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621013332.4U CN206366059U (en) | 2016-08-31 | 2016-08-31 | A kind of ultrafiltration balance control device and continuous blood purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621013332.4U CN206366059U (en) | 2016-08-31 | 2016-08-31 | A kind of ultrafiltration balance control device and continuous blood purification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206366059U true CN206366059U (en) | 2017-08-01 |
Family
ID=59388334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621013332.4U Active CN206366059U (en) | 2016-08-31 | 2016-08-31 | A kind of ultrafiltration balance control device and continuous blood purification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206366059U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106215263A (en) * | 2016-08-31 | 2016-12-14 | 中国科学院苏州生物医学工程技术研究所 | A kind of ultrafiltration balance control device and method and continuous blood purification device |
-
2016
- 2016-08-31 CN CN201621013332.4U patent/CN206366059U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106215263A (en) * | 2016-08-31 | 2016-12-14 | 中国科学院苏州生物医学工程技术研究所 | A kind of ultrafiltration balance control device and method and continuous blood purification device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6153923B2 (en) | Electrolyte and pH monitoring for fluid removal processes | |
| US9320842B2 (en) | Multimodal dialysis system | |
| AU750282B2 (en) | Methods and apparatus for performing controlled ultrafiltration during hemodialysis | |
| CN101918053B (en) | Device for determining the recirculation in a fistula or the cardiopulmonary recirculation, and a blood treatment device comprising a device for determining the fistula recirculation or the cardiopulmonary recirculation part | |
| EP2701758A1 (en) | Multimodal dialysis system | |
| CN201755338U (en) | Household peritoneal dialysis treatment device | |
| JP2014518688A5 (en) | ||
| CN206366059U (en) | A kind of ultrafiltration balance control device and continuous blood purification device | |
| CN105561414A (en) | Portable blood purification apparatus | |
| CN106039441A (en) | Sensor-free flow rate measuring method and measuring device for ventricular assisting device | |
| KR20050122286A (en) | Method of testing peritoneal function and peritoneal dialysis planning apparatus | |
| CN106215263A (en) | A kind of ultrafiltration balance control device and method and continuous blood purification device | |
| CN105363084B (en) | A kind of fluid balance system of apparatus for purifying blood and application | |
| CN1994482A (en) | Weighing balancing system for blood purification | |
| Ronco et al. | The role of technology in hemodialysis | |
| CN209847954U (en) | External life support control device | |
| CN106945072A (en) | A kind of Medical Robot principal and subordinate response test system | |
| CN206334152U (en) | A kind of regulating system for blood purification | |
| JP2017196394A (en) | Dialysis system, sugar replenishing method, and sugar replenishing program | |
| CN100571795C (en) | Mechanical heart failure dewatering device and control device thereof | |
| CN204218900U (en) | A kind of for the electric sphygmomanometer in extracorporeal circulation equipment | |
| CN109701098A (en) | A kind of portable hemodialysis treatment apparatus and method for hemodialysis treatment | |
| Salhab et al. | Design and Implementation of a Wearable Artificial Kidney Prototype for Home Dialysis | |
| CN201085809Y (en) | Mechanical diuresis and natriuretic device implemented by extracorporeal circulation from periphery vein to vein | |
| Firdaus et al. | Control System of Drain, Bypass, and Dialysate Fluid Conditioning Mechanisms in Ultrafiltration Processes in Hemodialysis Machines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |