CN107158507A - A kind of continuous transfusion system with automatic ventilating function - Google Patents
A kind of continuous transfusion system with automatic ventilating function Download PDFInfo
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- CN107158507A CN107158507A CN201710407440.2A CN201710407440A CN107158507A CN 107158507 A CN107158507 A CN 107158507A CN 201710407440 A CN201710407440 A CN 201710407440A CN 107158507 A CN107158507 A CN 107158507A
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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
- A61M5/1407—Infusion of two or more substances
- A61M5/1408—Infusion of two or more substances in parallel, e.g. manifolds, sequencing valves
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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
-
- 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
- A61M5/16827—Flow controllers controlling delivery of multiple fluids, e.g. sequencing, mixing or via separate flow-paths
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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
- 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
- A61M5/16881—Regulating valves
-
- 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
- A61M5/36—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 with means for eliminating or preventing injection or infusion of air into body
-
- 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)
- Emergency Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The present invention relates to a kind of continuous transfusion system with automatic ventilating function, it includes transfusion device top (1), transfusion device middle part (2) and transfusion device bottom (3), (2), transfusion device bottom (3) are sequentially connected in the middle part of transfusion device top (1), transfusion device, it is characterised in that：(2) include regulation and control dropper (21) in the middle part of transfusion device, and regulation and control dropper (21) includes infusion controller (4) and dropper (5)；One aspect of the present invention, solves the problem of many bottles of infusion process of tradition need artificial constantly replacing infusion bottle, saves the substantial amounts of time and efforts of medical personnel；On the other hand, it is to avoid liquid waste, interface infection, blood back, air enter the bad phenomenons such as human body, significantly reduce the psychological burden of patient and medical personnel.
Description
Technology is led
The present invention relates to medical field, more particularly to a kind of continuous transfusion system with automatic ventilating function.
Technical background
Transfusion device is the conventional medicine equipment for intravenous injection, as shown in figure 1, transfusion device is typically protected by bottle plug puncture unit
Sheath, bottle plug puncture unit, air cleaner, tongs, Murphy type burette, transfusion long duct, flow regulator, medical filtration
Device, cone joint composition.The usual only one of which infusion channel of transfusion device, upper end is connected with infusion bottle, lower end and venous transfusion
Pin is supported the use, and is mainly used in clinical gravity type transfusion.IV clinical is infused in actual use, and usually many bottles of infusion bottles connect
Continuous transfusion, due to the mechanism of action of medicine is different and different pharmaceutical between the reason such as interfere, many bottles of infusion bottles must be by
Infused successively according to strict precedence.Current many bottles of infusion bottle continuous transfusions need the real-time monitoring and intervention of medical personnel,
Such as artificial exhaust, manually change infusion bottle, it is artificial it is defeated before confirmation and it is defeated after clean and manually adjust transfusion speed, exist all
Many the problem of and inconvenience, are described in detail as follows：1st, medical personnel need to be manually vented before transfusion to transfusion device.It is logical
Normal exhaust mode is that Murphy type burette is horizontal, when having enough liquid in dropper, extrudes dropper using finger, makes decoction
Dropping funnel is quickly entered, most of air in transfusion device could be discharged.Its process is very cumbersome time-consuming, and when extruding is acted slightly
When having careless, it will result in the transfusion inside pipe wall on the downside of transfusion device Murphy type burette and have substantial amounts of minute bubbles, to discharge these
Bubble, medical personnel need the tube wall with finger bullet transfusion device, and process is very cumbersome, and effect is not satisfactory.2nd, many bottles it is defeated
During bottle liquid continuous transfusion, it is required for manually changing infusion bottle after every bottle liquid medicine is totally lost.On the one hand, because medical personnel often need
The transfusion patient in multiple wards is nursed, artificial infusion bottle of changing takes medical personnel's substantial amounts of time, causes energy not
It is necessary to waste；On the other hand, if transfusion liquid level is less than the bottom of Murphy type burette when changing infusion bottle, need again
It is vented or re-starts intravenous injection：If liquid level is only lower than dropper a bit of, woven hose is generally wrapped in hand from bottom to top
On finger, air is gradually extruded；If the big section of liquid level lower than dropper one, needs to open cone joint, from lower end by air
Discharge, but this process will necessarily cause the waste of decoction, enter while easily causing interface infection with a small amount of air through transfusion needle
Enter human body.Damage, damage can be also caused to transfusion catheter by extruding transfusion tube wall way of discharge air outside transfusion device
Transfusion catheter can influence the transfusion performance of transfusion device, so as to reduce the reliability of transfusion device, severe patient causes transfusion accident.Cause
This, in order to prevent liquid level to be less than Murphy type burette, medical personnel, patient and family members need to be nursed in real time, cause three
Unnecessary anxiety and psychological burden.3rd, Present clinical venous transfusion, it is impossible to automatic stopping infusion.At the end of transfusion, such as
Fruit medical personnel nurse not in time, and liquid level decline is too low to will result in blood back phenomenon, and severe patient causes gas to cause into human body
The adverse consequences such as aeroembolism.4th, for blood transfusion or valuable decoction, it is necessary to manually carry out defeated preceding confirmation and defeated rear cleaning.In blood transfusion
Or before valuable decoction, it is necessary to first confirm whether vein conveying is correct, then could carry out formal conveying with salt solution；In transfusion
At the end of, there is liquid in woven hose and be detained phenomenon, in order to avoid liquid waste, it is necessary to carry out normal saline washing.This two process is all
Medical personnel are needed to manually complete, process is bothered very much, is extremely wasted time and energy.5th, Present clinical venous transfusion is, it is necessary to which artificial adjust
Whole transfusion speed.Transfusion speed is that it is improper that transfusion speed is set according to determinations such as the age of patient, the state of an illness, the properties of medicine
Chronic heart failure or other serious consequences are likely to cause, or even cause malpractice.Present infusion speed is main by artificial
The flow velocity of observation Murphy type burette is adjusted by adjusting flow regulator manually, there is problems with：Firstth, only with observation
Murphy type burette sets flow velocity completely correct, and the objective condition such as the profile by medical personnel is limited；
Secondth, under the conditions of such a, not only medical personnel can adjust, and patient and family members entourage can equally adjust, and have according to investigations
Too fast 38.88% transfusion is that patient voluntarily tunes up.
For many bottles of continuous transfusion situations, patent name is " differential to exempt from nurse automatic decanting infusion apparatus and monitor system "
(application number：CN103705998A) announced, its major defect is：1st, it can only realize the situation of many bottles of continuous transfusions
Under continuous transfusion, reduce the workload of the replacing infusion bottle of medical personnel, be not directed to automatic exhaust, automatic stopping infusion
The problem of with residual liquid in pipe is prevented；2nd, using the different modes for producing pressure differential of infusion bottle suspension height, on the one hand will
Very big requirement is proposed to transfusion space, on the other hand in many bottles of continuous transfusions, is normally hung to medical personnel due to patient
Limited height, thus will nursing staff suspension infusion bottle cause difficulty；3rd, by the way of floating valve suspension height is different and
Multiple floating valves is produced pressure differential, difficulty equally is caused to transfusion space and nursing staff's suspension infusion bottle；4th, using buoyancy
Valve produces the mode of pressure differentials as the unidirectionally controlled or different woven hoses of control, because its is complicated, by transfusion device arrangement with
And the influence of infusion bottle arrangement, the problem of there is reliability, reliability is very important for transfusion device, and infusion bottle connects
If continuous transfusion does not timely enter transfusion device, centre is there is one section of air, larger accident will be caused.
The content of the invention
There is provided a kind of multifunctional adaptive continuous transfusion system, solution for the problems of present infusion device by the present invention
Certainly following problem：1st, the fast automatic exhaust of transfusion device；2nd, adaptive many bottles of continuous transfusions；3rd, transfusion device automatic stopping infusion；4、
It is automatically performed the defeated preceding confirmation and defeated rear cleaning of valuable decoction；5th, set according to the property of the age of patient, the state of an illness, medicine
And adjust automatically infusion flow rate.The cardinal principle of multifunctional adaptive continuous transfusion system involved in the present invention is to utilize setting
Flow sensor and infrared position sensor monitoring transfusion condition, control the rotation of motor to control using master controller
The switch and aperture size of each transfusion device path, so that very reliable realize as above purpose.
Technical program of the present invention lies in there is provided a kind of continuous transfusion system with automatic ventilating function, it includes transfusion
In the middle part of device top, transfusion device and transfusion device bottom, transfusion device top, transfusion device middle part, transfusion device bottom are sequentially connected, its feature
It is：Include regulation and control dropper in the middle part of transfusion device, regulation and control dropper includes infusion controller and dropper；
Infusion controller includes protective cover, motor, master controller, flow sensor, infrared position sensor, transfusion
Controlling organization hand switch, power transmission shaft, valve element, valve element infusion channel, valve element long duct air filtration passage；Flow sensor is real
When the actual decoction flow velocity of feedback size, center processor can control motor and drive power transmission shaft and valve core rotation；It is infrared
Position sensor Real-time Feedback valve element infusion channel and then ensures that valve element reaches relative to the position relationship of supporting plate infusion channel
Precalculated position；Infusing controlling organization hand switch can be by the position of manual mode rotational valve core；
Dropper includes dropper wall, pad, transfusion circular cone interface, long duct air cleaner circular cone interface, supporting plate, support
Plate infusion channel, supporting plate long duct air filtration passage；To be threadedly coupled between dropper wall and supporting plate, pad is arranged on drop
On tube wall inwall；Transfusion circular cone interface and long duct air cleaner circular cone interface are arranged at the upper surface of supporting plate；
The valve element of infusion controller is arranged on inside the supporting plate of dropper, and flow sensor is arranged on the transfusion of dropper upper end
Circular cone interface internal；
By control infusion channel and valve element long duct air cleaner passage on the rotation of valve element, valve element respectively with branch
The infusion channel of fagging is connected with supporting plate long duct air filtration passage.
The beneficial effects of the present invention are：
(1) multifunctional adaptive continuous transfusion system provided by the present invention can realize fast automatic degassing function.Such as Fig. 2
And shown in Fig. 4, be provided with long duct air cleaner passage in regulation and control dropper, pass through cone joint and the long duct on transfusion device top
Air cleaner is connected, so as to be connected with external pressure, makes the air pressure inside regulation and control equal with external pressure all the time,
Keep constant.The liquid on transfusion device top is automatically flowed into regulation and control dropper under gravity, when the liquid level in dropper reaches
To long duct air cleaner passage lower surface when, liquid stop enter regulation and control dropper.In this process, liquid is constantly filled out
Regulation and control dropper inner space is filled, the gas for originally occupying this segment space is arranged, and passes through the long duct air on transfusion device top
Filter quickly discharges transfusion device.Simultaneously as the air pressure inside regulation and control dropper remains constant, will not filling out because of liquid
Fill and increase, so the speed that liquid flows into regulation and control dropper can also keep constant, the speed of gas discharge is constant all the time.On the one hand
Because gas is quickly discharged by long duct air cleaner, on the other hand because the speed of gas discharge is constant all the time, many work(
Adaptively fast automatic degassing function can be realized by continuous transfusion system.
(2) multifunctional adaptive continuous transfusion system provided by the present invention can realize adaptive many bottle liquid medicine continuous transfusions
With the function of automatic stopping infusion.As shown in Fig. 2 in actual use, it is suitable according to the number selection of required infusion bottle first
Regulation and control dropper and transfusion device top number.Secondly, long duct air cleaner is led with corresponding length on the upside of regulation and control dropper
Pipe air cleaner circular cone interface is connected, while the transfusion device top infused at first is connect with long duct air cleaner circular cone
Mouthful adjacent transfusion circular cone interface is connected, remaining transfusion device top according to injection sequence successively with other transfusion circular cone interface phases
Connection.As shown in figure 4, the transfusion path only one of which position of regulation and control dropper is connected state, remaining is closed mode.Most
Afterwards, by all infusion bottles, disposably suspension is in place, using bottle plug puncture unit that each infusion bottle is continuously defeated with multifunctional adaptive
Liquid device is connected, and now the first infusion bottle will start automatic exhaust, rapidly enter regulation and control dropper, and reach long duct air mistake
The position of filter passage lower end, when the first transfusion bottle liquid medicine is totally lost, the flow velocity for being arranged at the flow sensor of the path is 0,
The position that center processor will control motor rotation to be connected to second infusion bottle, by position sensor feedback motor rotation
Position, while be arranged at alternate path flow sensor feedback flow velocity signal, it is ensured that valve element accurately rotation to second transfusion
The position of bottle connection, now remaining infusion bottle is closed mode, is repeated above when the second transfusion bottle liquid medicine is also totally lost
Step, so on, to the last the decoction of one bottle of infusion bottle is totally lost, and center processor control motor drives Spool rotating extremely
The centre position of two infusion channels, closes all infusion channels, while long duct air cleaner passage is also at closing shape
State, due to atmospheric pressure effect, decoction is by automatic stopping infusion.Simultaneously as remaining decoction position is higher, overall transfusion device bottom
In barotropic state, it is therefore prevented that the phenomenon such as blood back air., will transfusion controlling organization hand switch adjustment the when medical personnel pull out pin
One infusion bottle opening, now long duct air cleaner be also at open mode, make air pressure inside transfusion device with it is outside
Atmospheric pressure is equal, and now the remaining decoction in transfusion device will continue to input human body.
(3) can be automatically performed many bottles of valuable decoctions continuously defeated for multifunctional adaptive continuous transfusion system provided by the present invention
The defeated preceding confirmation of liquid and defeated rear cleaning.According to clinical needs, before blood transfusion or other valuable decoctions, it is necessary first to carry out
Work is confirmed before decoction is defeated, to ensure the correctness of vein conveying；, it is necessary to carry out defeated rear cleaning after transfusion terminates, keep away
Exempt from the waste of decoction.Many bottles of valuable decoction continuous transfusions are similar to many bottles of common decoction continuous transfusion processes, as shown in Fig. 2
When actual use, first according to the number of required infusion bottle (include the salt solution for being cleaned after confirming before infusing and infusing,
Referred to as confirm cleaning salt solution) select suitably to regulate and control the number on dropper and transfusion device top.Secondly, long duct is by air filtration
Device is connected with corresponding long duct air cleaner circular cone interface on the upside of regulation and control dropper, while by the transfusion for defeated preceding confirmation
The device top transfusion circular cone interface adjacent with long duct air cleaner circular cone interface is connected, and remaining transfusion device top is according to note
Order is penetrated successively with other transfusion circular cone interfaces to be connected.As shown in figure 4, the infusion channel only one of which position of regulation and control dropper is
Connected state, remaining is closed mode.Finally, by all infusion bottles, disposably suspension is in place, will be each using bottle plug puncture unit
Individual infusion bottle is connected with multifunctional adaptive continuous transfusion system, and now the first infusion bottle (confirming cleaning salt solution) will start certainly
Dynamic exhaust, rapidly enters regulation and control dropper, and reach the position of long duct air cleaner passage lower end.When medical personnel confirm
After transfusion is normal, transfusion controlling organization hand switch is manually adjusted, regulation and control dropper is connected with second infusion bottle, simultaneously
First infusion bottle (confirming cleaning salt solution) transfusion path blockade；When the second transfusion bottle liquid medicine is totally lost, the path is arranged at
When the flow velocity of flow sensor is 0, the position that center processor will control motor rotation to be connected to the 3rd infusion bottle, by position
The position of sensor feedback motor rotation is put, while being arranged at the flow sensor feedback flow velocity signal of third path, it is ensured that
Accurately rotation is to the communicating position of the 3rd infusion bottle for valve element, and now remaining infusion bottle is closed mode.When the 3rd infusion bottle medicine
The step of repeating above when liquid is also totally lost, so on, to the last the decoction of one bottle of infusion bottle is totally lost, center processor control
Motor processed drives Spool rotating to the centre position of two infusion channels, all infusion channels is closed, while long duct air
Filter passages are also at closed mode, and due to atmospheric pressure effect, decoction is by automatic stopping infusion.Simultaneously as remaining decoction
Position is higher, and overall transfusion device bottom is in barotropic state, it is therefore prevented that the phenomenon such as blood back air., will be defeated when medical personnel pull out pin
Hydraulic control mechanism manual switch is adjusted to the first infusion bottle (confirming cleaning salt solution) opening, now long duct air filtration
Device is also at open mode, makes the air pressure inside transfusion device equal with external pressure, and now the remaining decoction in transfusion device will
Continue to input human body, transfusion device carries out the cleaning of remaining decoction automatically.
(4) multifunctional adaptive continuous transfusion system provided by the present invention can be according to the age of patient, the state of an illness, medicine
Property setting and adjust automatically transfusion speed.Fig. 5 is the sectional view of supporting plate in Fig. 3, utilizes supporting plate infusion channel and valve element
The different overlapping areas of infusion channel can realize different decoction flow controls.As depicted in figs. 3 and 5, actually infusing
Cheng Zhong, the size of the actual decoction flow velocity of flow sensor Real-time Feedback, infrared position sensor Real-time Feedback valve core channel is relative
In the position relationship of supporting plate infusion channel.When the actual decoction flow velocity that flow sensor feeds back and the transfusion speed being previously set
When different, the spool position information that center processor feeds back according to infrared position sensor controls motor clockwise or the inverse time
Pin rotates to adjust spool position, so as to change the overlapping area of infusion channel and supporting plate infusion channel on valve element, Jin Ergai
Become decoction flow velocity, be finally consistent transfusion speed of the decoction actual flow velocity with being previously set.
(5) multifunctional adaptive continuous transfusion system provided by the present invention can realize fast automatic degassing function, with non-
The problem of Chang Kuaijie, easy mode solve cumbersome time-consuming and bad effect in the artificial exhaust process of existing transfusion device；This hair
Bright provided multifunctional adaptive continuous transfusion system can realize adaptive many bottle liquid medicine continuous transfusions and automatic stopping infusion
Function, on the one hand, solving many bottles of infusion process of tradition needs artificial the problem of constantly change infusion bottle, saves medical care people
The substantial amounts of time and efforts of member；On the other hand, it is to avoid liquid waste, interface infection, blood back, that air enters human body etc. is bad existing
As significantly reducing the psychological burden of patient and medical personnel.
(6) can be automatically performed many bottles of valuable decoctions continuously defeated for multifunctional adaptive continuous transfusion system provided by the present invention
The defeated preceding confirmation of liquid and defeated rear cleaning, are on the one hand able to ensure that the correct safety of vein conveying is carried out, are on the other hand avoiding
The deficiency for needing manually to clean after traditional infusion terminates is overcome while valuable liquid waste, significantly reduces medical personnel's
Work load.
(7) multifunctional adaptive continuous transfusion system provided by the present invention can be according to the age of patient, the state of an illness, medicine
Optimal infusion flow rate has been previously set in property, in infusion process adjust automatically transfusion speed and all the time be in optimum flow rate shape
State, it is to avoid manual regulation has the problem of flow velocity is inaccurate, so as to reliably avoid because transfusion speed is improper and may
The serious consequence caused.
Brief description of the drawings
Fig. 1 is the structural representation of existing transfusion device
Fig. 2 is the structural representation of multifunctional adaptive continuous transfusion system provided by the present invention
Fig. 3 be Fig. 2 in regulation and control dropper along A-A to sectional view
Fig. 4 is sectional view of the regulation and control dropper along B-B direction in Fig. 3
Fig. 5 be Fig. 4 in supporting plate along C-C to sectional view
Fig. 6 is the position instruction panel of valve element in Fig. 2
Wherein：1 '-transfusion device top, 11 '-bottle stopper puncture protector, 12 '-bottle plug puncture unit, 13 '-air cleaner,
14 '-tongs, 2 '-transfusion device middle part, 21 '-Murphy type burette, 3 '-transfusion device bottom, 31 '-transfusion long duct, 32 '-decoction
Filter, 33 '-cone joint, 34 ' flow regulators；1- transfusion devices top, 11- bottle stopper punctures protector, 12- bottle stoppers are worn
Pierce device, 13- air cleaners, 14- tongses, 15- long ducts air cleaner, 2- transfusion devices middle part, 21- regulation and control dropper, 22-
Cone joint, 3- transfusion devices bottom, 31- transfusions long duct, 32- liquid medicine filters, 33- cone joints；4- infusion controllers,
41- protective covers, 42- motor, 43- master controllers, 44- flow sensors, 45- infrared position sensors, 46- transfusion controls
Mechanism manual switch processed, 47- power transmission shafts, 48- valve elements, 481- valve elements infusion channel, 48- valve element long duct air filtrations passage,
482- valve element long duct air cleaners passage, 5- droppers, 51- droppers wall, 52- pads, 53- transfusion circular cones interface, 54- length are led
Pipe air cleaner circular cone interface, 55- supporting plates, 551- supporting plates infusion channel, the air filtration of 552- supporting plate long ducts are led to
Road, 6- spool position indication panels.
Embodiment
In order that those skilled in the art more fully understands technical scheme, it is below in conjunction with the accompanying drawings and specific real
Applying example, the present invention is described in further detail.
It is the structural representation of existing transfusion device as shown in Figure 1, existing transfusion device is in the middle part of transfusion device top 1 ', transfusion device
2 ', transfusion device bottom 3 ' is sequentially connected composition.Wherein, transfusion device top 1 ' includes：Bottle stopper puncture protector 11 ', bottle stopper puncture
Device 12 ', air cleaner 13 ', tongs 14 '；2 ' include in the middle part of transfusion device：Murphy type burette 21 '；Wrap transfusion device bottom 3 '
Include：Transfusion long duct 31 ', liquid medicine filter 32 ', cone joint 33 ', flow regulator 34 '.Each building block is according to figure
Order shown in 1, which is sequentially connected, to be connect, and bottle plug puncture unit 12 ' is connected with infusion bottle, and cone joint 34 ' is connected with intravenous infusion needle
Connect, so just constitute the complete structure of existing transfusion device.
As shown in Fig. 2 this embodiment offers a kind of continuous transfusion system with automatic ventilating function, it includes transfusion device
2, transfusion device bottom 3 is sequentially connected in the middle part of top 1, transfusion device middle part 2 and transfusion device bottom 3, transfusion device top 1, transfusion device.
Wherein, transfusion device top 1 includes：Bottle stopper puncture protector 11, bottle plug puncture unit 12, air cleaner 13, sealing
Folder 14, long duct air cleaner 15；Bottle stopper puncture protector 11 is sheathed on bottle plug puncture unit 12, the lower end of air cleaner 13 with
The liquid line of the lower end of bottle plug puncture unit 12 is connected.Tongs 14 is arranged on the liquid line of the lower end of bottle plug puncture unit 12.It is long
The upper end of duct filter 15 and air communication, lower end with
2 include regulation and control dropper 21, cone joint 22 in the middle part of transfusion device；
Transfusion device bottom 3 includes transfusion long duct 31, liquid medicine filter 32, cone joint 33.Transfusion long duct 31 one end
The outlet of regulation and control dropper 21 is connected to, the other end is connected by cone joint 33 with intravenous infusion needle, and liquid medicine filter 32 is set
Put on transfusion long duct 31.
Continuous transfusion system with automatic ventilating function and the contrast of existing transfusion device are understood, led this embodiment increases length
Pipe air cleaner 15 and regulation and control dropper 21, while reducing original Murphy type burette 21 ' and flow regulator 34 '.Need
It is noted that in the continuous transfusion system with automatic ventilating function designed by the embodiment, transfusion device top 1 and transfusion
The overall structure of device bottom 3 is same as the prior art, and transfusion device top 1 and each part of the inside of transfusion device bottom 3 it
Between connected mode can be found in prior art.
The bottle plug puncture unit 12 on transfusion device top 1 is connected with infusion bottle, the liquid line lower end on transfusion device top 1 with it is defeated
2 top cone joint 22 is connected in the middle part of liquid device, in the middle part of transfusion device in the middle part of 2 transfusion device of lower section cone joint 22 under 2 transfusion devices
Portion 3 is sequentially connected by cone joint 22, and cone joint 33 is connected with intravenous infusion needle, is so just constituted with automatic row
The complete structure of the continuous transfusion system of airway dysfunction.
Fig. 3 and Fig. 4 are the sectional view of regulation and control dropper 21 in Fig. 2, and now valve element 48 is on initial position, i.e. valve element
Infusion channel 481 and valve element long duct air cleaner passage 482 respectively with the infusion channel 551 in supporting plate 55 and support
Plate long duct air filtration passage 552 is connected.
As shown in figure 4, regulation and control dropper 21 is made up of infusion controller 4 and the two parts of dropper 5.Infusion controller 4 includes protecting
Shield 41, motor 42, master controller 43, flow sensor 44, infrared position sensor 45, transfusion controlling organization are opened manually
Close 46, power transmission shaft 47, valve element 48, valve element infusion channel 481, valve element long duct air filtration passage 482.It is protective cover 41, electronic
Machine 42, master controller 43, flow sensor 44, infrared position sensor 45, transfusion controlling organization hand switch 46 constitute defeated
The control function part of fluid controller 4；Power transmission shaft 47, valve element 48 constitute the perform function part of infusion controller 4.Flow sensing
Device 44 is used for the flow for monitoring liquid, and center processor 43 can control motor 42 and drive 48 turns of power transmission shaft 47 and valve element
It is dynamic.Position of infrared position sensor (45) the Real-time Feedback valve element infusion channel (481) relative to supporting plate infusion channel (551)
Relation, and then ensure that valve element 48 reaches precalculated position.
For the ease of dismantling and sterilizing, motor 42 is arranged at the top of regulation and control dropper 21, is protected by protective cover 41
Shield.Controlling organization hand switch 46 of infusing can make valve element 48 as required by the position of manual mode rotational valve core 48
On the infusion channel 551 different from supporting plate of infusion channel 481 be connected, selectively switch on required infusion bottle.It is logical
Control function part is connected with perform function part according to connected mode as shown in Figure 4 by power transmission shaft, so as to be combined into
Complete infusion controller 4.
Dropper 5 includes dropper wall 51, pad 52, transfusion circular cone interface 53, long duct air cleaner circular cone interface 54, branch
Fagging 55, supporting plate infusion channel 551, supporting plate long duct air filtration passage 552.
In actual use, the transfusion circular cone interface 53 of regulation and control dropper upper end can according to set the need for clinic 4 interfaces and
8 two kinds of interface specifications.
Dropper wall 51, pad 52, transfusion circular cone interface 53, long duct air cleaner circular cone interface 54, supporting plate 55 are pressed
Complete dropper 5 is combined into according to mode as shown in Figure 4.Wherein, disappear between dropper wall 51 and supporting plate 55 to be threadedly coupled
Supporting plate 55 is detachable when malicious, it is ensured that fully and completely cleaning and sterilization inside regulation and control dropper 21, pad 52 are arranged on dropper wall
On 51 inwalls.Transfusion circular cone interface 53 and long duct air cleaner circular cone interface 54 are arranged at the upper surface of supporting plate 55.
Valve element 48 is designed to column type structure, to ensure the regulation and control integrally-built high reliability of dropper 21 and less trouble.Valve element 48 with
The contact area of supporting plate 55 is relatively small, and the two uses Cu alloy material, to ensure good contact and reliable close
Envelope.
The valve element 48 of infusion controller 4 is arranged on inside the supporting plate 55 of dropper 5, and flow sensor 44 is arranged on dropper 5
Inside the transfusion circular cone interface 53 of upper end, infusion controller 4 and dropper 5 have just been combined into complete regulation and control dropper 21.
Fig. 5 be Fig. 4 in supporting plate along C-C to sectional view, as illustrated, supporting plate infusion channel 551 and valve element transfusion
The overlapping area of passage 481 is bigger, and decoction flow velocity is faster, otherwise slower.
Fig. 6 is the position instruction panel of valve element 48 in Fig. 2, and position of the valve element 47 relative to supporting plate 55 can be shown in real time
Confidence ceases.
The continuous transfusion system with automatic ventilating function that the embodiment is provided mainly is realized by regulating and controlling dropper 21
Different functions.Further illustrated with reference to specific embodiment.
In the embodiment, the continuous transfusion system with automatic ventilating function realizes fast automatic degassing function.Such as Fig. 2 and figure
Shown in 3, infusion channel 481 and valve element long duct air cleaner passage 482 that valve element 48 is rotated on initial position, i.e. valve element
It is connected respectively with the infusion channel 551 in supporting plate 55 and supporting plate long duct air filtration passage 552.Valve element long duct is empty
Air filter passage 482 and supporting plate long duct air filtration passage 552 further pass through circular cone interface 54 and transfusion device top
Long duct air cleaner 15 be connected, so as to be connected with outside atmosphere, make air pressure inside regulation and control dropper 21 all the time with
External pressure is equal, keeps constant.
The liquid on transfusion device top is automatically flowed into regulation and control dropper 21 under gravity, when the liquid level in dropper reaches
To supporting plate long duct air filtration passage 552 lower surface when, liquid stop enter regulation and control dropper.In this process, liquid
Body constantly fills regulation and control dropper 21 inner space, and the gas for originally occupying this segment space is arranged, and passes through transfusion device top
Long duct air cleaner 15 quickly discharges transfusion device.
Simultaneously as the air pressure inside regulation and control dropper 21 remains constant, it will not increase because of the filling of liquid, institute
It can also keep constant with the speed that liquid flows into regulation and control dropper 21, the speed of gas discharge is constant all the time.On the one hand due to gas
Quickly discharged by long duct air cleaner 15, on the other hand because the speed of gas discharge is constant all the time, with automatic row
The continuous transfusion system of airway dysfunction realizes fast automatic degassing function.
In the embodiment, the continuous transfusion system with automatic ventilating function can also realize adaptive many bottle liquid medicine continuous transfusions
With the function of automatic stopping infusion.As shown in Fig. 2 in actual use, it is suitable according to the number selection of required infusion bottle first
Regulation and control dropper 21 and transfusion device top 1 number.Secondly, it is long duct air cleaner 15 is corresponding with the upside of regulation and control dropper 21
Long duct air cleaner circular cone interface 54 be connected, while by the transfusion device top infused at first and long duct air filtration
The adjacent transfusion circular cone interface 53 of device circular cone interface 54 is connected, and remaining transfusion device top is according to injection sequence and other transfusions
Circular cone interface is connected.As shown in figure 3, the infusion channel only one of which position of regulation and control dropper 21 is connected state, remaining is
Closed mode.Finally, it is the disposable suspension of all infusion bottles is in place, using bottle plug puncture unit 12 by each infusion bottle with having certainly
The continuous transfusion system of dynamic degassing function is connected, and now the first infusion bottle will start automatic exhaust, rapidly enters regulation and control dropper 21,
And the lower end position of supporting plate long duct air filtration passage 552 is reached, when the first infusion bottle, which is infused, to be completed, this is arranged at
When the flow velocity of the flow sensor 44 of path is 0, center processor 43 will control motor 42 to turn to second infusion bottle company
Logical position, the position rotated by the feedback motor 42 of infrared position sensor 45, while the flow for being arranged at alternate path is passed
Sensor 44 feeds back flow velocity signal, it is ensured that accurately rotation is to the communicating position of the second infusion bottle for valve element 48, and now remaining infusion bottle is equal
For closed mode.The step of being repeated above when the second transfusion bottle liquid medicine is also totally lost, so on, to the last one bottle of transfusion
The decoction of bottle is totally lost, and the control motor 42 of center processor 43 is rotated to the centre position of two infusion channels with movable valve plug 48,
All infusion channels are closed, while long duct air cleaner passage is also at closed mode, due to atmospheric pressure effect, decoction will
Automatic stopping infusion.Simultaneously as remaining decoction position is higher, overall transfusion device bottom 3 is in barotropic state, it is therefore prevented that blood back is empty
The phenomenons such as gas.When medical personnel pull out pin, transfusion controlling organization hand switch 46 is adjusted into the first infusion bottle opening, now
Long duct air cleaner 15 is also at open position, makes the air pressure inside transfusion device equal with external pressure, now infuses
Remaining decoction in device will continue to input human body.
Meanwhile, in this embodiment, the continuous transfusion system with automatic ventilating function is adapted to an infinite number of transfusion
The situation of bottle continuous transfusion.When the infusion bottle quantity of continuous transfusion is excessive, the transfusion circular cone interface 53 of the upside of regulation and control dropper 21
Number be less than continuous transfusion infusion bottle number, at this point it is possible in order by infusion bottle below replace successively above infuse
The infusion bottle finished, the valve element 48 of regulation and control dropper 21 is designed for column type, and valve element 21 will sequentially be connected by (or counterclockwise) clockwise
Continuous rotation, in turn switches on the infusion bottle for replacing to come up below, so as to adapt to the situation of an infinite number of infusion bottle continuous transfusion.
In this embodiment, can be automatically performed many bottles of valuable decoctions continuous for the continuous transfusion system with automatic ventilating function
The defeated preceding confirmation of transfusion and defeated rear cleaning.Many bottles of valuable decoction continuous transfusions and many bottles of common decoction continuous transfusion process phases
Seemingly, as shown in Fig. 2 in actual use, (confirming and infusing before including for infusing according to the number of required infusion bottle first
The salt solution cleaned afterwards, referred to as confirms cleaning salt solution) select suitably to regulate and control the number on dropper 21 and transfusion device top 1.Secondly,
The long duct air cleaner circular cone interface 54 corresponding with the upside of regulation and control dropper 21 of long duct air cleaner 15 is connected,
Simultaneously by the transfusion circular cone interface 53 adjacent with long duct air cleaner circular cone interface for the transfusion device top of defeated preceding confirmation
It is connected, remaining transfusion device top is connected according to injection sequence with other transfusion circular cone interfaces.As shown in figure 3, regulation and control dropper
21 infusion channel only one of which position is connected state, and remaining is closed mode.Finally, it is all infusion bottles are disposable
Suspension is in place, and each infusion bottle is connected with the continuous transfusion system with automatic ventilating function using bottle plug puncture unit 12, this
When the first infusion bottle (confirm cleaning salt solution) automatic exhaust will be started, rapidly enter regulation and control dropper 21, and reach supporting plate
The lower end position of long duct air filtration passage 552, after medical personnel confirm that transfusion is normal, manually adjusts and regulates and controls dropper
21 hand switch 46 is adjusted to the second infusion bottle opening, now the first infusion bottle (confirming cleaning salt solution) closing；When
When the transfusion of second infusion bottle is completed, the flow velocity for being arranged at the flow sensor 44 of the path is 0, and center processor 43 will control electricity
Motivation 42 turns to the position of the 3rd infusion bottle connection, the position rotated by the feedback motor 42 of infrared position sensor 45,
The feedback flow velocity signal of flow sensor 44 of third channel is arranged at simultaneously, it is ensured that valve element 48 is accurately rotated to the 3rd infusion bottle
Connected state position, now remaining infusion bottle is closed mode, is repeated above when the 3rd transfusion bottle liquid medicine is also totally lost
Step, so on, to the last the decoction of one bottle of infusion bottle is totally lost, and center processor 43 controls motor 42 with movable valve plug 48
Rotation closes all infusion channels, while long duct air cleaner passage is also to the centre position of two infusion channels
Closed mode, due to atmospheric pressure effect, decoction is by automatic stopping infusion.Simultaneously as remaining decoction position is higher, overall transfusion
Device bottom 3 is in barotropic state, it is therefore prevented that the phenomenon such as blood back air.When medical personnel pull out pin, transfusion controlling organization is opened manually
Close 46 and adjust the first infusion bottle (confirming cleaning salt solution) opening, now long duct air cleaner 15 is also at open position
Put, make the air pressure inside transfusion device equal with external pressure, now the remaining decoction in transfusion device will continue to input human body, defeated
Liquid device carries out the cleaning of remaining decoction automatically.
In this embodiment, the continuous transfusion system with automatic ventilating function can be according to the age of patient, the state of an illness, medicine
Property setting and adjust automatically transfusion speed.Fig. 5 is the sectional view of supporting plate 55 in Fig. 3, utilizes supporting plate infusion channel 551
Overlapping areas different from valve element infusion channel 481 can realize different decoction flow controls.As depicted in figs. 3 and 5, in reality
During border is infused, the size of the actual decoction flow velocity of the Real-time Feedback of flow sensor 44, infrared position sensor 45 is anti-in real time
Present position relationship of the valve element infusion channel 481 relative to supporting plate infusion channel 551.The actual medicine fed back when flow sensor 45
When flow velocity is different from the transfusion speed being previously set, the valve element 48 that center processor 43 feeds back according to infrared position sensor 45
Positional information, control motor 42 adjusts the position of valve element 48 clockwise or counterclockwise, so as to change defeated on valve element
The overlapping area of liquid passage 481 and supporting plate infusion channel 551, and then change decoction flow velocity, finally make decoction actual flow velocity with
The transfusion speed being previously set is consistent.
Although be described in detail to the embodiment in conjunction with the embodiments, those skilled in the art should manage
Solution ground is that the present invention is not limited only to specific embodiment, on the contrary, in the various amendments without departing from the application spirit and essence,
Deformation and replacement are all fallen among the protection domain of the application.Although above in conjunction with the preferred embodiments of the present invention to the present invention
Principle be described in detail, it should be appreciated by those skilled in the art that above-described embodiment be only to the present invention signal
The explanation of property implementation, not to the restriction of scope of the present invention.Details in embodiment is not constituted to model of the present invention
The limitation enclosed, without departing from the spirit and scope of the present invention, any equivalent transformation based on technical solution of the present invention,
Simple replacement etc. is obvious to be changed, and is all fallen within the scope of the present invention.
Claims (7)
1. a kind of continuous transfusion system with automatic ventilating function, it is (2) and defeated that it includes transfusion device top (1), transfusion device middle part
(2), transfusion device bottom (3) are sequentially connected in the middle part of liquid device bottom (3), transfusion device top (1), transfusion device, it is characterised in that it is special
Levy and be to be characterized in that：
(2) include regulation and control dropper (21) in the middle part of transfusion device, and regulation and control dropper (21) includes infusion controller (4) and dropper (5)；
Infusion controller (4) includes protective cover (41), motor (42), master controller (43), flow sensor (44), infrared
Position sensor (45), transfusion controlling organization hand switch (46), power transmission shaft (47), valve element (48), valve element infusion channel
(481), valve element long duct air filtration passage (482)；The size of the actual decoction flow velocity of flow sensor (44) Real-time Feedback, in
Heart processor (43) can control motor (42) and drive power transmission shaft (47) and valve element (48) to rotate；Infrared position sensor
(45) Real-time Feedback valve element infusion channel (481) relative to supporting plate infusion channel (551) position relationship, and then ensure valve element
(48) precalculated position is reached；Infusing controlling organization hand switch (46) can be by the position of manual mode rotational valve core (48)
Put；
Dropper (5) includes dropper wall (51), pad (52), transfusion circular cone interface (53), long duct air cleaner circular cone interface
(54), supporting plate (55), supporting plate infusion channel (551), supporting plate long duct air filtration passage (552)；Dropper wall (51)
To be threadedly coupled between supporting plate (55), pad (52) is arranged on dropper wall (51) inwall；Infuse circular cone interface (53) and
Long duct air cleaner circular cone interface (54) is arranged at the upper surface of supporting plate (55)；
The supporting plate (55) that the valve element (48) of infusion controller (4) is arranged on dropper (5) is internal, and flow sensor (44) is arranged on
The transfusion circular cone interface (53) of dropper (5) upper end is internal；
By controlling infusion channel (481) and valve element long duct air cleaner on the rotation of valve element (48), valve element (48) to lead to
Road (482) is connected with the infusion channel (551) and supporting plate long duct air filtration passage (552) in supporting plate (55) respectively
It is logical.
2. the continuous transfusion system according to claim 1 with automatic ventilating function, it is characterised in that：
The overlapping area of supporting plate infusion channel (551) and valve element infusion channel (481) is bigger, and decoction flow velocity is faster, otherwise more
Slowly.
3. the continuous transfusion system according to claim 1 with automatic ventilating function, it is characterised in that：
Valve element long duct air cleaner passage (482) and supporting plate long duct air filtration passage (552) further pass through circle
Wimble interface (54) is connected with the long duct air cleaner (15) on transfusion device top, so as to be connected with outside atmosphere, makes tune
Control the internal air pressure of dropper (21) equal with external pressure all the time.
4. the continuous transfusion system according to claim 3 with automatic ventilating function, it is characterised in that：
The liquid on transfusion device top is automatically flowed into regulation and control dropper (21) under gravity, when the liquid level in dropper reaches
During the lower surface of supporting plate long duct air filtration passage (552), liquid stops entering regulation and control dropper, in this process, gas
Body quickly discharges transfusion device by the long duct air cleaner (15) on transfusion device top.
5. the continuous transfusion system according to claim 1 with automatic ventilating function, it is characterised in that：
First, the number on suitable regulation and control dropper (21) and transfusion device top is selected according to the number of required infusion bottle；
Secondly, long duct air cleaner (15) is connect with corresponding long duct air cleaner circular cone on the upside of regulation and control dropper (21)
Mouthful (54) are connected, while by defeated adjacent with long duct air cleaner circular cone interface (54) in the transfusion device top infused at first
Liquid circular cone interface (53) is connected, and remaining transfusion device top is connected according to injection sequence with other transfusion circular cone interfaces；
Finally, by all infusion bottles, disposably suspension is in place, using bottle plug puncture unit (12) that each infusion bottle is automatic with having
The continuous transfusion system of degassing function is connected, and now the first infusion bottle will start automatic exhaust, and liquid enters regulation and control dropper (21),
And reach the lower end position of supporting plate long duct air filtration passage (552).
6. the continuous transfusion system according to claim 5 with automatic ventilating function, it is characterised in that：
When the first infusion bottle, which is infused, to be completed, the flow velocity for setting the flow sensor (44) of the first path is 0, center processor
(43) motor (42) will be controlled to turn to the position of second infusion bottle connection, feed back electronic by infrared position sensor (45)
The position that machine (42) is rotated, while being arranged at flow sensor (44) the feedback flow velocity signal of alternate path, it is ensured that valve element (48)
Accurate rotation is to the communicating position of the second infusion bottle, and now remaining infusion bottle is closed mode；To the last one bottle of infusion bottle
Decoction be totally lost, center processor (43) control motor (42) band movable valve plug (48) rotation to two infusion channels interposition
Put, close all infusion channels, while long duct air cleaner passage is also at closed mode, due to atmospheric pressure effect, medicine
Liquid is by automatic stopping infusion.
7. the continuous transfusion system according to claim 1 with automatic ventilating function, it is characterised in that：
When the actual decoction flow velocity that flow sensor (45) feeds back is different from the transfusion speed being previously set, center processor
(43) positional information of the valve element (48) fed back according to infrared position sensor (45), controls motor (42) clockwise or the inverse time
Pin rotates to adjust the position of valve element (48), so as to change infusion channel on valve element (481) and supporting plate infusion channel (551)
Overlapping area, and then change decoction flow velocity, finally it is consistent transfusion speed of the decoction actual flow velocity with being previously set.
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| CN201710407440.2A CN107158507B (en) | 2017-06-02 | 2017-06-02 | Continuous infusion apparatus with automatic exhaust function |
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|---|---|---|---|
| CN201710407440.2A CN107158507B (en) | 2017-06-02 | 2017-06-02 | Continuous infusion apparatus with automatic exhaust function |
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| CN107158507B CN107158507B (en) | 2020-07-10 |
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| CN108261584A (en) * | 2018-01-16 | 2018-07-10 | 湖南中医药大学 | A kind of slidingtype regulation and control dropper of multifunctional adaptive continuous transfusion system |
| CN109106996A (en) * | 2018-09-04 | 2019-01-01 | 四川大学 | A kind of automatic switchover infusion channel sequence continuous transfusion system |
| CN110201263A (en) * | 2019-07-15 | 2019-09-06 | 永嘉企达知识产权咨询有限公司 | A kind of medical automatic switchover perfusion tube |
| CN113577440A (en) * | 2021-08-03 | 2021-11-02 | 常州药物研究所有限公司 | Electromagnetic automatic control continuous infusion apparatus |
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