CN107802918A - A kind of dynamic action is in the transfusion control method and control system of decoction soft bag - Google Patents
A kind of dynamic action is in the transfusion control method and control system of decoction soft bag Download PDFInfo
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- CN107802918A CN107802918A CN201711137481.0A CN201711137481A CN107802918A CN 107802918 A CN107802918 A CN 107802918A CN 201711137481 A CN201711137481 A CN 201711137481A CN 107802918 A CN107802918 A CN 107802918A
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- decoction
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/142—Pressure infusion, e.g. using pumps
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16804—Flow controllers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16877—Adjusting flow; Devices for setting a flow rate
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
- A61M2205/3334—Measuring or controlling the flow rate
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a kind of dynamic action in the transfusion control method and control system of decoction soft bag, transfusion control method its mainly utilize when the first liquid unit be pressurized produce deformation when, first liquid unit with a stable flow velocity by capillary the infusion fluid into second liquid unit, while the second liquid unit compressing decoction soft bag of compressive deformation exports the transfusion decoction of equivalent capability with same flow velocity.Compared with prior art, 1, decoction soft bag is positioned in equipment, power directly acts on decoction soft bag, avoids existing transfusion that transfusion bottle or soft bag must be sling to transfusion and is not easy to the deficiency of movement；2nd, the speed of accurate continual and steady control soft bag trickle, avoids existing infusion pump precision from depending on the physical dimension of infusion pipeline, anti-extrusion fatigue-resistance characteristics；3rd, with reference to supporting infusion pipeline, there is automatic liquid-stopping function, avoid and flow automatically caused by gravity；4th, with reference to circuits, there is automatic ventilating function, avoid air from entering patient's body.
Description
Technical field
The present invention relates to medical transfusion control technology field, and in particular to a kind of dynamic action is in the transfusion control of decoction soft bag
Method and control system processed.
Background technology
In the prior art, power transfusion mainly has following several ways：
1st, using infusion pump, pressure transfusion is realized by the pump housing periodically extruding infusion pipeline, it is a kind of volume controlled
Type infusion model, infusion flow rate can adjust (about 1 arrives 1500ml/h) in wider scope.But its is defeated for this kind of infusion model
Liquid precision and pipeline physical dimension, pipeline elasticity, anti-extrusion ability and pipeline operating time are closely related, and at work
Need to lift infusion bottle or decoction soft bag, be not easy to move；
2nd, using roller pump, it is to roll infusion pipeline by roller to realize pressure transfusion, other with infusion pump principle phase
Together, just it is not repeated to describe；
3rd, using pressing plate pump, it is to extrude decoction soft bag by the pressing plate with elastomeric element to provide transfusion power, and its is excellent
Point is that principle is simple, without electricity consumption；Shortcoming is that infusion pressure is non-constant, dynamic no control, and transfusion precision speed can not
Ensure；
4th, using transfusion liquid feeding bag, it extrudes decoction soft bag manually to be inflated to inflating bag, by airbag and realizes pressurization
Transfusion, cost is very low, but pressure transient, dynamic no control, and transfusion accuracy and speed can not ensure；In addition in the program
On the basis of, it is easy to expect the technical scheme using automatic pumping pressurization, pressure can realize stability contorting, but be still to have
Power can not be effectively ensured without control, transfusion precision speed.
The content of the invention
For defect present in prior art, it is an object of the invention to provide a kind of dynamic action in decoction soft bag
Infuse control method and control system, medicine in the control decoction soft bag that the transfusion control method and control system can be precise and stable
Liquid output speed.
To achieve the above object, the technical solution adopted by the present invention is as follows：
A kind of dynamic action is made in the transfusion control method of decoction soft bag, the power unit that steady pressure can be produced using one
For can compressive deformation the first liquid unit, passes through filled with flowable liquid, the first liquid unit in the first liquid unit
Capillary with same inner chamber filled with flowable liquids can the second liquid unit of compressive deformation be connected, second liquid unit with
Inner chamber filled with transfusion decoction can the decoction soft bag of compressive deformation be in contact, wherein when the first liquid unit is pressurized and produces deformation,
First liquid unit with a stable flow velocity by capillary the infusion fluid into second liquid unit, while the of compressive deformation
Two liquid units oppress the transfusion decoction that decoction soft bag exports equivalent capability with same flow velocity.
Further, during decoction soft bag exports decoction, an opened by pressure check valve is set at its liquid outlet,
The unlatching threshold value of the opened by pressure check valve is higher than pressure value caused by water-column corresponding to transfusion device length, with
Decoction self gravitation is avoided to open the opened by pressure check valve.
Further, it is also equipped with being used to filter out air in decoction soft bag and liquid-transport pipe-line in the downstream of opened by pressure check valve
Filter.
Further, during decoction soft bag exports decoction, the first liquid unit and second liquid list are also monitored in real time
The temperature of member, is compensated according to temperature to differential flow characteristic, corrects the sets target pressure difference at capillary both ends in time, is maintained
Decoction flexible pipe exports the stability of flow of decoction.
The present invention also provides a kind of control system for the transfusion control method in decoction soft bag of realizing above-mentioned dynamic action simultaneously
System, include the first chamber volume and the second chamber volume, the gas storehouse and first that is filled in the first chamber volume inner chamber of constant volume
Liquid storehouse, the second liquid storehouse being filled in the second chamber volume and decoction soft bag and the gas for being inflated operation to the gas storehouse
Pump, connected between the first liquid storehouse and the second liquid storehouse by capillary, being contained with the first liquid storehouse and the second liquid storehouse can
Working fluid, second chamber volume are additionally provided with the cover door for carrying out opening closure during for taking the decoction soft bag thereon,
Contact surface between the gas storehouse and the first liquid storehouse and the second liquid storehouse and decoction soft bag is all compliant interface, wherein when the first liquid
When storehouse is produced deformation by pressure caused by gas storehouse, the first liquid storehouse with a stable flow velocity by capillary into the second liquid storehouse
Infusion fluid, while the second liquid storehouse compressing decoction soft bag of compressive deformation exports the infusing medicine of equivalent capability with same flow velocity
Liquid.
Further, the gas storehouse its be also associated with gas bleeder valve.
Further, described its outlet end of decoction soft bag is additionally provided with an opened by pressure check valve, wherein the opened by pressure
Its unlatching threshold value of check valve is higher than pressure value caused by the decoction water-column corresponding with transfusion device length.
Further, the opened by pressure check valve is also associated with one for filtering out the decoction soft bag and woven hose downstream
The filter of air in road.
Further, it is also associated with quick valve between the first liquid storehouse and the second liquid storehouse.
Further, the capillary of multiple different inner diameters sizes is connected between the first liquid storehouse and the second liquid storehouse, wherein
Each capillary is provided with an Open valve thereon.
Compared with prior art, the advantageous effects that this programme has are：
(1) it is capable of the speed of accurate continual and steady control decoction soft bag trickle, avoids existing transfusion precision from relying on
In infusion pipeline physical dimension, anti-extrusion fatigue properties, and in use without in defined sterile service life
Conduit positions are frequently changed, specific is by using the characteristic between capillary differential pressure and flow, by controlling capillary poor
Pressure realizes the steady flow of the flow of liquid between the first liquid storehouse and the second liquid storehouse, while also needing to utilize the first chamber volume
With the characteristic that the second chamber volume is constant volume, realize when the increased change of the second liquid holding capacity of bin in the second chamber volume is converted into
The change of the equal reduction of decoction soft bag capacity, and then the stable physics discharge characteristic of capillary is converted into stable infusion flow
Characteristic；
(2) decoction soft bag is positioned in the equipment of an entirety, external impetus is directly acted in decoction soft bag, is avoided
Transfusion bottle or soft bag must be sling transfusion and be not easy to the deficiency of movement by existing transfusion；
(3) it is higher than by setting one to open threshold value at the liquid outlet of decoction soft bag corresponding to transfusion device length
The opened by pressure check valve of pressure value caused by water-column so that decoction soft bag has automatic liquid-stopping function, avoids weight
Flow automatically caused by power；
(4) it by the filter being provided with, can cause whole infusion pipeline that there is automatic ventilating function, reduce exhaust
Workload, air is avoided to enter patient's body；
(5) because independent of gravity infusion, transfusion device consumptive material of the invention can substantially reduce the length of extrusion infusing pipeline, contracting
Primary infusion pipeline diameter, reduce the generation of medical waste.
Brief description of the drawings
The principle block diagram that it is corresponding infusion method in the present embodiment that Fig. 1, which is,.
Fig. 2 is operating process schematic diagram in the present embodiment.
Fig. 3 is the schematic diagram of the capillary both ends differential pressure and discharge characteristic in the present embodiment.
Fig. 4 is control system square frame principle structural representation in the present embodiment.
Fig. 5 is the control flow chart that detecting system is controlled in the present embodiment.
Fig. 6 is the capillary both ends differential pressure of different-diameter size and the schematic diagram of discharge characteristic in the present embodiment.
Description of reference numerals in figure：
The chamber volumes of 100- first, 101- gas storehouses, the first liquid of 102- storehouse, 103- compliant interfaces, the chamber volumes of 200- second, 201-
Second liquid storehouse, 202- decoction soft bags, 203- compliant interfaces, 3- opened by pressure check valves, 4- filters, 5- control detecting systems,
6- relief valves, 7- air pumps, 8- first pressure sensors, 9- temperature sensors, 10- second pressure sensors, 11-, which opens the door, detects mould
Block, 12- keyboards, 13- acceleration transducers, 14- dc power interfaces, 15- power supplys and charge management module, 16- intelligence lithium electricity
Pond, 17- capillaries, 18- Open valves, 19- quick valves.
Embodiment
With reference to Figure of description, the present invention is described in further detail with embodiment.
This programme can not be effectively ensured mainly for transfusion accuracy and speed in existing decoction infusion process be present
And a kind of dynamic action proposed utilizes the transfusion control method and control in the transfusion control method and control system of decoction soft bag
System processed can be precise and stable control decoction soft bag inner liquid medicine output speed.
The present embodiment provides a kind of dynamic action in the transfusion control method of decoction soft bag first, is shown referring to accompanying drawing 1
To should infusion method principle block diagram.The transfusion control method is：Utilize a power list that can produce steady pressure
Member act on can compressive deformation the first liquid unit, filled with flowable liquid, the first liquid unit in the first liquid unit
By capillary with same inner chamber filled with flowable liquids can the second liquid unit of compressive deformation be connected, second liquid list
Member and inner chamber filled with transfusion decoction can the decoction soft bag of compressive deformation be in contact, wherein when the first liquid unit is pressurized generation deformation
When, the first liquid unit with a stable flow velocity by capillary the infusion fluid into second liquid unit, simultaneously because second
Liquid volume increases and causes the second liquid unit compressing decoction soft bag of compressive deformation defeated with same flow velocity in liquid unit
Go out the transfusion decoction of equivalent capability.
With reference to shown in referring to the drawings 3, accompanying drawing 3 is the differential pressure and discharge characteristic schematic diagram at capillary both ends, can be with from figure
Find out, a certain pressure difference at its both ends of capillary correspond to corresponding flow value.The present embodiment by control the first liquid unit and
Differential pressure △ P1 between second liquid unit, reach the target differential pressure △ P1 of defaultobj, so that the first liquid
Unit is according to specific flow velocity VobjFlow to second liquid unit, due to second liquid unit its inner space capacity be it is constant,
When the liquid in the first liquid unit is flowed in second liquid unit, second liquid unit volume is the same as the big simultaneously compressive deformation of time-varying
And decoction soft bag is oppressed with same flow velocity VobjThe loading decoction of equivalent capability is exported, so as to realize by capillary both ends
Form constant pressure difference and reach constant transfusion speed purpose.
The present embodiment is during ensureing that capillary both ends are in constant pressure difference, also by using control detecting system
(being formed for existing single-chip computer control system plus corresponding sensor component) detects the first liquid unit and second in real time
The temperature of liquid unit, differential flow characteristic is compensated according to the temperature difference, correct the sets target pressure at capillary both ends in time
Difference, maintain the stability of flow of decoction flexible pipe output decoction.
The present embodiment is in order to avoid the free-flowing of appearance under gravity of the decoction in herb liquid soft bag of infusing
Problem, in supporting transfusion consumptive material, increase has opened by pressure check valve, can only be in power list with the decoction ensured in decoction soft bag
Output is driven in the presence of member.Need to ask the unlatching threshold value of opened by pressure check valve to be higher than in decoction soft bag for this to infuse
The corresponding decoction water-column of device length, to avoid the gravity in decoction soft bag from opening opened by pressure check valve, in reality
The unlatching threshold value general control of middle opened by pressure check valve is more than 1.5m water columns, but no more than 3m water columns.
Also for excluding the air in decoction soft bag and transfusion device in the present embodiment, in order to avoid air enters disease in transfusion
In human body, in supporting transfusion consumptive material, opened by pressure check valve downstream is provided with accurate filter, can filter out in decoction soft bag
With the air in pipeline.
It is a kind of dynamic action in the present invention in the control system square frame principle structure of decoction soft bag referring to shown in accompanying drawing 4
Schematic diagram.The control system includes the first chamber volume 100 of constant volume and the second chamber volume 200, is filled in the first volume
The liquid storehouse 102 of gas storehouse 101 and first in the inner chamber of room 100, the second liquid storehouse 201 being filled in the second chamber volume 200 and decoction are soft
Bag 202 and the air pump 7 for being inflated operation to gas storehouse 101, pass through hair between the first liquid storehouse 102 and the second liquid storehouse 201
Tubule 17 is connected, and flowable liquids are contained with the first liquid storehouse 102 and the second liquid storehouse 201, and the second chamber volume 200 is gone back thereon
It is provided with the cover door for carrying out opening closure during for taking decoction soft bag 202, the liquid storehouse 102 of gas storehouse 101 and first and the second liquid
Contact surface between storehouse 201 and decoction soft bag 202 is all compliant interface 103, wherein when the first liquid storehouse 102 is by the institute of gas storehouse 101
When caused pressure produces deformation, the first liquid storehouse 102 is inputted with a stable flow velocity by capillary 17 into the second liquid storehouse 201
Liquid, while the second liquid storehouse 201 compressing decoction soft bag 202 of compressive deformation exports the infusing medicine of equivalent capability with same flow velocity
Liquid.
The first chamber volume 100 and the second chamber volume 200 can be the shell structure with cavity in the present embodiment, wherein the
Two chamber volumes 200 are provided with the cover door that can carry out opening closure.Specifically, the first chamber volume 100 in the present embodiment can be with
Using the cavity shell structure of a closing, the first liquid storehouse 102 is to be formed by being contained with the soft bag of flowable liquids, gas storehouse
101 with regard to the remaining space between soft bag and the inner chamber of the first chamber volume 100.After gassy in gas storehouse 101, the first liquid storehouse
102 peripheries are all gas, are contacted between the two by soft bag, the compliant interface between the first liquid storehouse 102 and gas storehouse 101
103 be soft bag surface.And pressure release can be carried out to the gas in gas storehouse 101 as needed at work, also pacified in gas storehouse 101
Equipped with relief valve 6.In addition, the gas that air pump 7 is fed in the present embodiment is air, naturally it is also possible to using other general uses
Gas.Second chamber volume 200 equally uses a cavity shell structure for closing, but it can be opened equipped with one
The cover door of closure, for being put into or taking out decoction soft bag 202.The second liquid storehouse 201 in second chamber volume 200, which is similarly, to be contained with
The soft bag of flowable liquids is formed, and the interior of full whole second chamber volume 200 is filled in both the second liquid storehouse 201 and decoction soft bag 202
Chamber, so that when the volume of the second liquid storehouse 201 changes, corresponding decoction soft bag 202 produces same corresponding stereomutation.The
Compliant interface 203 between two liquid storehouses 201 and decoction soft bag 202 is soft bag face therebetween.During work, when gas storehouse 101 is logical
The compliant interface 103 between the first liquid storehouse 102 is crossed by pressure conduction into the first liquid storehouse 102, by controlling inflating for air pump 7
Measure so as to control the pressure difference △ P1 between the first liquid storehouse 102 and the second liquid storehouse 201 and reach target differential pressure △ P1obj, liquid will be from
First liquid storehouse 102 is according to specific flow velocity VobjSecond liquid storehouse 201 is flowed to by capillary 17, due to the second liquid storehouse 201 and decoction
The space that soft bag 202 forms is fixed, flows to the liquid in the second liquid storehouse 201 necessarily by it between decoction soft bag 202
Compliant interface 203 decoction of equivalent capability is extruded from decoction soft bag 202, decoction soft bag 202 is according to same flow velocity Vobj
Patient is flowed to by infusion pipeline, so as to realize by inflating and constant differential pressure being formed at the both ends of capillary 17, and then formed permanent
Determine the purpose of transfusion speed.
In the present embodiment, liquid in the first liquid storehouse 102 and the second liquid storehouse 201 can be preferentially using there is certain kinematic viscosity
Lubricating oil as liquid medium.
It is the differential pressure at capillary both ends and the schematic diagram of discharge characteristic of different tube diameters size referring to shown in accompanying drawing 6.This reality
Apply in order to which whole transfusion control system has broader adjustable flow scope in example, the first liquid storehouse 102 and the second liquid storehouse 201 it
Between be provided with the capillaries 17 of multiple different inner diameters sizes, each capillary 17 is equipped with Open valve 18 thereon, so as to
Can be according to the different capillaries of flow rates demand selection differential flow curve corresponding with its in the course of work, such as can be formed from 1-
3000mL/h flow adjustable extent.
In practical work process, it is necessary to quickly exclude second after decoction soft bag 202 to be put into the second chamber volume 200
Air in chamber volume 200.Quick valve 19 is installed between the first liquid storehouse 102 and the second liquid storehouse 201 for this present embodiment.Profit
The air for being filled with liquid into the second liquid storehouse 201 to be rapidly completed in the second chamber volume 200 with the first liquid storehouse 102 excludes operation,
Therefore the bigger quick valve 19 in one aperture of setting is just needed to realize above-mentioned action.
In order to avoid the free-flowing problem that the decoction in herb liquid soft bag 202 of infusing occurs under gravity,
Its outlet end of decoction soft bag 202 is additionally provided with an opened by pressure check valve 3, wherein its unlatching thresholding of the opened by pressure check valve 3
Value is higher than pressure value caused by the decoction water-column corresponding with transfusion device length.Simultaneously for the ease of exclusion decoction soft bag
202 and transfusion device in air, avoid transfusion in air enter in patient body, also in opened by pressure check valve 3 downstream
It is also associated with an accurate filter 4 for being used to filter out air in decoction soft bag 202 and liquid-transport pipe-line.
The present embodiment is additionally provided with acceleration sensing to more accurately measure the pressure difference at capillary both ends in control system
Device 13, acceleration transducer 13 are connected with the control detecting system 5 for controlling whole control system to act.Added by being provided with
Velocity sensor 13, whole equipment can be caused to compensate influence of the gravity to pressure measurements under different postures.
Due to realizing that compensation of the gravity to pressure measxurement is prior art using acceleration transducer 13, the present embodiment is herein just no longer
Repeated description.Whole control system can be configured with screen pack, for eliminating in the first liquid storehouse 102 and the second liquid storehouse 201
Particulate matter, avoid blocking capillary therebetween.
In addition the present embodiment is in whole work process in order to more accurately detect the pressure differential at capillary both ends,
The pressure of first pressure sensor 8 and second is connected between the control liquid storehouse 102 of detecting system 5 and first and the second liquid storehouse 201
Force snesor 10, and it is additionally provided with temperature sensor 9 between control detecting system 5 and first liquid storehouse 102.In order that obtain whole
Individual control system more automates and intellectuality, and enabling inspection is additionally provided between the chamber volume 200 of detecting system 5 and second is controlled
Survey module 11, enabling detection module 11 use existing conventional sensor, come detect the unlatching of the cover door in the second positive displacement and
Closure state, basis for estimation is provided to carry out action in next step for whole control detecting system 5.Control detecting system 5 is equipped with
There are power supply and charge management module 15, the power supply and charge management module 15 are connected with the dc power interface 14 that outside is provided with
It is logical.It is whole to control detecting system 5 to be also configured with chargeable Intelligent lithium battery in order to which whole equipment can be moved easily
16, to cause whole control system to be powered operation by Intelligent lithium battery 16.In addition in order that obtaining whole equipment
More intelligent, its periphery of control detecting system 5 is also associated with a keyboard 12, and person easy to operation is carried out accordingly by keyboard 12
Operation.
Referring to shown in accompanying drawing 2, it is operating process schematic diagram when operating.When operation starts, the first step is installation decoction
Soft bag, the specific cover door to open in the second chamber volume, decoction soft bag is put into, is then turned off cover door；Second step is discharge
Air in second chamber volume inner chamber, it is specifically：Open quick valve, booster air pump, due to the first chamber volume intracavity space volume
It is constant, as air pump inputs gas, the increase of gas storehouse pressure volume into gas storehouse, and the first liquid storehouse is extruded by compliant interface, the
One liquid warehouse product reduces, and the volume of liquid for reducing part enters the second liquid storehouse by quick valve, and the second liquid warehouse product is corresponding to be increased,
Until after the volume in the second liquid storehouse is equal to the volume of the second chamber volume inner chamber plus the volume of decoction soft bag, show the second chamber volume
Unnecessary air in intracavity space has been discharged, and now the pressure in the second liquid storehouse starts to rise rapidly, reaches in its pressure value
Before the Opening pressure of pressure operable valve in transfusion device, stop air-pump inflating；3rd step has to exclude the air in transfusion device
Body for by transfusion device needle into the medicine insert transfusion flexible bag liquid outlet, booster air pump, gas in transfusion device is excluded, is then shut off gas
Pump and closing quick valve, carry out vein puncture；4th step be according to system flow rate require control the first liquid storehouse and the second liquid storehouse it
Between differential pressure, specific is the flow according to default, according to capillary differential pressure and discharge characteristic, determines capillary both ends
Target differential pressure.Start and control the switch of air pump, by pressure difference control in the defined scope of target differential pressure, then through the first liquid storehouse
The flow for flowing to the second liquid storehouse reaches the traffic requirement of setting, because the volume of the second chamber volume is constant, flows to the second liquid storehouse
Liquid necessarily the decoction of equivalent capability is extruded from decoction soft bag by the compliant interface between the second liquid storehouse and decoction soft bag,
And patient is flowed to by transfusion device by same capacity.
Referring to shown in accompanying drawing 5, to control the control flow chart of detecting system.It is from the control flow chart as can be seen that whole
Individual control process is broadly divided into four steps：
The first step is the Fast Filling stage, and the second liquid storehouse and decoction soft bag are filled up into the second chamber volume inner chamber, are specifically：
Padding is proceeded by, first determines whether the cover door in the second chamber volume closesIf it is not, cover door is open shape
State, corresponding opening relief valve, followed by judging whether cover door closes, if cover door is closed, open quick
Valve simultaneously closes relief valve, starts to inflate into gas storehouse, to be rapidly completed the filling work of the second chamber volume, starts inflationtime
Timing.If the pressure in the second liquid storehouse is more than the 50% of opened by pressure check valve unlatching value, stop inflating into the first liquid storehouse
And all valves are closed, if be not reaching to, judge whether inflationtime reaches the setting value time in gas storehouse, if reached
Arrive, be then judged as failure, carry out corresponding troubleshooting；
Second step is system set-up parameters, is specifically：Stop inflating and close all valves, wait flow velocity to be placed to join
Number, transfusion device needle into the medicine is inserted into decoction soft bag before exhaust instruction is started；
3rd step is exhaust, specific to be vented instruction such as to receive, and opens quick valve and is inflated into gas storehouse, while right
Gas discharge amount in transfusion device is measured, until reaching the capacity of agreement or being connected to stopping exhaust instruction, returns to second
Step.Exhaust instruction is not connected to then enters the 4th step；
4th step controls for flow, is specifically it is first determined whether startup order is received, if being not received by
Second step is returned, opens the Open valve of corresponding capillary, selection pair according to the flow velocity of setting if receiving and starting order
Desired value of the target differential pressure answered as capillary both ends pressure difference, booster air pump, starts to pressurize；Basis adds in pressure process
The data output that the data output and acceleration transducer that velocity sensor detects detect, to the pressure difference at capillary both ends
Desired value corrected in real time；Control air-pump inflating amount so that the pressure difference at capillary both ends allows in the desired value of setting
Deviation range in, and the operation (such as temperature detection control etc.) of corresponding function is ceased and desisted order if received, returned
Second step.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technology
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (10)
1. a kind of dynamic action is in the transfusion control method of decoction soft bag, it is characterised in that：Steady pressure can be produced using one
Power unit act on can compressive deformation the first liquid unit, filled with flowable liquid, the first liquid in the first liquid unit
Body unit by capillary with same inner chamber filled with flowable liquids can the second liquid unit of compressive deformation be connected, second
Liquid unit and inner chamber filled with transfusion decoction can the decoction soft bag of compressive deformation be in contact, wherein being produced when the first liquid unit is pressurized
During raw deformation, the first liquid unit with a stable flow velocity by capillary the infusion fluid into second liquid unit, while by
The second liquid unit compressing decoction soft bag of compressive strain exports the transfusion decoction of equivalent capability with same flow velocity.
2. a kind of dynamic action according to claim 1 is in the transfusion control method of decoction soft bag, it is characterised in that：In medicine
During liquid soft bag output decoction, an opened by pressure check valve is set at its liquid outlet, the opened by pressure check valve
Open threshold value and be higher than pressure value caused by water-column corresponding to transfusion device length, to avoid decoction self gravitation will
The opened by pressure check valve is opened.
3. a kind of dynamic action according to claim 2 is in the transfusion control method of decoction soft bag, it is characterised in that：Pressing
The downstream of power open check valve is also equipped with the filter for filtering out air in decoction soft bag and liquid-transport pipe-line.
4. a kind of dynamic action according to claim 1 is in the transfusion control method of decoction soft bag, it is characterised in that：In medicine
During liquid soft bag output decoction, the first liquid unit and the temperature of second liquid unit are also monitored in real time, according to temperature pair
Differential flow characteristic compensates, and corrects the sets target pressure difference at capillary both ends in time, maintains decoction flexible pipe output decoction
Stability of flow.
A kind of 5. transfusion control for realizing transfusion control method of a kind of dynamic action in decoction soft bag as claimed in claim 1
System, it is characterised in that：Include the first chamber volume of constant volume and the second chamber volume, be filled in the first chamber volume inner chamber
Gas storehouse and the first liquid storehouse, the second liquid storehouse for being filled in the second chamber volume and decoction soft bag and for being carried out to the gas storehouse
The air pump of operation is inflated, is connected between the first liquid storehouse and the second liquid storehouse by capillary, the first liquid storehouse and the second liquid
Flowable liquids are contained with storehouse, second chamber volume is additionally provided with for being opened when taking the decoction soft bag thereon
The cover door of closure, the contact surface between the gas storehouse and the first liquid storehouse and the second liquid storehouse and decoction soft bag are all compliant interface,
Wherein when the first liquid storehouse is produced deformation by pressure caused by gas storehouse, the first liquid storehouse passes through capillary with a stable flow velocity
The infusion fluid into the second liquid storehouse, while the second liquid storehouse compressing decoction soft bag of compressive deformation is held so that same flow velocity output is equal
The transfusion decoction of amount.
6. a kind of dynamic action according to claim 5 is in the transfusion control system of decoction soft bag, it is characterised in that：It is described
Gas storehouse its be also associated with gas bleeder valve.
7. a kind of dynamic action according to claim 5 or 6 is in the transfusion control system of decoction soft bag, it is characterised in that：
Described its outlet end of decoction soft bag is additionally provided with an opened by pressure check valve, wherein its unlatching thresholding of the opened by pressure check valve
Value is higher than pressure value caused by the decoction water-column corresponding with transfusion device length.
8. a kind of dynamic action according to claim 7 is in the transfusion control system of decoction soft bag, it is characterised in that：It is described
Opened by pressure check valve is also associated with a filter for being used to filter out air in the decoction soft bag and liquid-transport pipe-line downstream.
9. a kind of dynamic action according to claim 5 is in the transfusion control system of decoction soft bag, it is characterised in that：It is described
Quick valve is also associated between first liquid storehouse and the second liquid storehouse.
10. a kind of dynamic action according to claim 5 is in the transfusion control system of decoction soft bag, it is characterised in that：Institute
The capillary that multiple different inner diameters sizes are connected between the first liquid storehouse and the second liquid storehouse is stated, capillary described in each of which is thereon
One Open valve is installed.
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| CN201711137481.0A CN107802918A (en) | 2017-11-16 | 2017-11-16 | A kind of dynamic action is in the transfusion control method and control system of decoction soft bag |
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| CN201711137481.0A CN107802918A (en) | 2017-11-16 | 2017-11-16 | A kind of dynamic action is in the transfusion control method and control system of decoction soft bag |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110772685A (en) * | 2019-11-04 | 2020-02-11 | 山东大学齐鲁医院 | Infusion pump with closed-loop control of infusion amount and working method |
| CN110772684A (en) * | 2019-11-04 | 2020-02-11 | 山东大学齐鲁医院 | Automatic dressing change micro-injection pump and working method |
| CN110898290A (en) * | 2019-12-31 | 2020-03-24 | 山东大学齐鲁医院 | Multifunctional portable infusion device and working method |
| CN110960747A (en) * | 2019-12-19 | 2020-04-07 | 山东大学齐鲁医院 | High-precision analgesia pump and working method |
| CN110975058A (en) * | 2019-12-19 | 2020-04-10 | 齐鲁理工学院 | Automatically-adjustable analgesia pump and working method |
| CN113959517A (en) * | 2021-10-29 | 2022-01-21 | 四川太平洋药业有限责任公司 | Method for acquiring volume of infusion bag in water bath sterilization cabinet and pressure control method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060196552A1 (en) * | 2005-02-17 | 2006-09-07 | Kriesel Marshall S | Distal rate control device |
| US20100179473A1 (en) * | 2006-12-29 | 2010-07-15 | Amir Genosar | Hypodermic drug delivery reservoir and apparatus |
| CN102671259A (en) * | 2012-05-22 | 2012-09-19 | 北京鑫禾丰医疗技术有限公司 | Transfusion control device |
| CN103405825A (en) * | 2013-08-26 | 2013-11-27 | 苏州鼎诺医疗设备有限公司 | Transfusion pump |
| US20140228755A1 (en) * | 2009-12-26 | 2014-08-14 | Athena Gtx, Inc. | Fluid Balance Monitoring System with Fluid Infusion Pump for Medical Treatment |
| CN106880887A (en) * | 2017-03-29 | 2017-06-23 | 江苏人先医疗科技有限公司 | Preventing gravity fluid infusion structure and its application method |
| CN206534939U (en) * | 2016-10-17 | 2017-10-03 | 广州普道医疗科技有限公司 | A kind of infusion pump |
-
2017
- 2017-11-16 CN CN201711137481.0A patent/CN107802918A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060196552A1 (en) * | 2005-02-17 | 2006-09-07 | Kriesel Marshall S | Distal rate control device |
| US20100179473A1 (en) * | 2006-12-29 | 2010-07-15 | Amir Genosar | Hypodermic drug delivery reservoir and apparatus |
| US20140228755A1 (en) * | 2009-12-26 | 2014-08-14 | Athena Gtx, Inc. | Fluid Balance Monitoring System with Fluid Infusion Pump for Medical Treatment |
| CN102671259A (en) * | 2012-05-22 | 2012-09-19 | 北京鑫禾丰医疗技术有限公司 | Transfusion control device |
| CN103405825A (en) * | 2013-08-26 | 2013-11-27 | 苏州鼎诺医疗设备有限公司 | Transfusion pump |
| CN206534939U (en) * | 2016-10-17 | 2017-10-03 | 广州普道医疗科技有限公司 | A kind of infusion pump |
| CN106880887A (en) * | 2017-03-29 | 2017-06-23 | 江苏人先医疗科技有限公司 | Preventing gravity fluid infusion structure and its application method |
Non-Patent Citations (1)
| Title |
|---|
| 张福田: "《分子界面化学基础》", 30 June 2006 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110772685A (en) * | 2019-11-04 | 2020-02-11 | 山东大学齐鲁医院 | Infusion pump with closed-loop control of infusion amount and working method |
| CN110772684A (en) * | 2019-11-04 | 2020-02-11 | 山东大学齐鲁医院 | Automatic dressing change micro-injection pump and working method |
| CN110960747A (en) * | 2019-12-19 | 2020-04-07 | 山东大学齐鲁医院 | High-precision analgesia pump and working method |
| CN110975058A (en) * | 2019-12-19 | 2020-04-10 | 齐鲁理工学院 | Automatically-adjustable analgesia pump and working method |
| CN110960747B (en) * | 2019-12-19 | 2021-08-06 | 山东大学齐鲁医院 | High-precision analgesia pump and working method |
| CN110975058B (en) * | 2019-12-19 | 2021-08-10 | 齐鲁理工学院 | Automatically-adjustable analgesia pump and working method |
| CN110898290A (en) * | 2019-12-31 | 2020-03-24 | 山东大学齐鲁医院 | Multifunctional portable infusion device and working method |
| CN110898290B (en) * | 2019-12-31 | 2021-07-30 | 山东大学齐鲁医院 | Multifunctional portable infusion device and working method |
| CN113959517A (en) * | 2021-10-29 | 2022-01-21 | 四川太平洋药业有限责任公司 | Method for acquiring volume of infusion bag in water bath sterilization cabinet and pressure control method |
| CN113959517B (en) * | 2021-10-29 | 2024-03-29 | 四川太平洋药业有限责任公司 | Method for acquiring volume of infusion bag in water bath sterilization cabinet and pressure control method |
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Application publication date: 20180316 |