CN108057143A - Automatic venous transfusion control system and its infusion method - Google Patents
Automatic venous transfusion control system and its infusion method Download PDFInfo
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- CN108057143A CN108057143A CN201711309480.XA CN201711309480A CN108057143A CN 108057143 A CN108057143 A CN 108057143A CN 201711309480 A CN201711309480 A CN 201711309480A CN 108057143 A CN108057143 A CN 108057143A
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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
- A61M5/16813—Flow controllers by controlling the degree of opening of the flow line
-
- 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
- A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
- A61M5/1684—Monitoring, detecting, signalling or eliminating infusion flow anomalies by detecting the amount of infusate remaining, e.g. signalling end of infusion
-
- 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
- A61M5/16886—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 for measuring fluid flow rate, i.e. flowmeters
-
- 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
- A61M5/365—Air detectors
-
- 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
- A61M5/44—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 having means for cooling or heating the devices or media
- A61M5/445—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 having means for cooling or heating the devices or media the media being heated in the reservoir, e.g. warming bloodbags
-
- 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
- A61M2205/18—General characteristics of the apparatus with alarm
-
- 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)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Engineering & Computer Science (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth 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 automatic venous transfusion control system and its infusion methods.System includes at least one intravenous infusion device (1),Detachably connected venous transfusion control device (2) and host computer (3),Predetermined temperature data is not met when host computer (3) receives temperature data,Processing unit (19) sends heating signal to heating element (12) so that the liquid constant temperature in liquid storage container is in predetermined temperature data,Predetermined liquid drop speed data are not met when host computer (3) receives liquid drop speed data,Processing unit (19) transmission speed signal is to speed control unit (15) so that the liquid drop speed data of drips are constant in predetermined liquid drop speed data in murphy's dropper (5),When host computer (3) receives stop signal,Processing unit (19) sends zero velocity signal to speed control unit (15) so that the adjustment state of flow regulator (15) is dead head condition.
Description
Technical field
The invention belongs to medical field, more particularly to a kind of automatic venous transfusion control system and its infusion method.
Background technology
The existing monitoring infusion mechanism of current each hospital and medical institutions is mostly by the way of artificial, especially for general
The monitoring infusion in common fault room is almost checked by families of patients or medical staff's timing bar none.Families of patients connects round the clock
The patient of continuous infusion, summer hot cold are suffered untold misery, and slightly carelessness cannot find the abnormal conditions of infusion in time, and cannot
It checks in time in infusion process since transfusion speed, infusion reaction, infusion hinder (such as syringe needle obstruction, dropped stitch, gas leakage) etc.
Caused infusion problem, the risk that transfusion speed is brought have drug to reach curative effect simultaneously side effect to be avoided to advise according to its characteristic
Surely there is drop speed requirement, if too fast hypoglycemia, the low blood pressure of having of hypoglycemic, blood-pressure drug infusion is dangerous, needed when encephaledema is rescued
Bolus injection mannitol, which reaches, is dehydrated drop cranium pressure curative effect, there was only diuresis if being transfused slowly and is acted on without drop cranium pressure；The elderly, the heart
The infusion such as pulmonary insufficiency, children is too fast to cause acute heart failure, pulmonary edema, and the fast too fast or mistake of drop can occur in infusion process
Slowly, syringe needle punctures blood vessel medicine liquid leakage and the danger such as the defeated empty not timely discovery of bubble, liquid is generated into subcutaneously (beating a drum), woven hose
Danger brings additional pain to patient or even leads to malpractice.Nurse on duty answers timed patrol patient, workload of the nurse
Greatly, it is under a strain, isolation ward is especially infected, nurse, which passes in and out to make an inspection tour, once needs to change barrier gown, and laborious cost again is high, nursing efficiency
It is low, increase the invalid running time of nursing staff, nurse's nurse can not only be then concerned about quiet by patient oneself or attending family entirely
Arteries and veins infusion process, in addition to the numerous public ward monitoring infusion of demand, intensive care unit, infant room, the elderly ward and residual
The ward that Ji Rendeng specific groups move in, families of patients should not accompany and attend to, and generally rely on nursing staff and accompany and attend to for a long time, nursing effect
Rate is extremely low.In default of the information record to accident process of infusing, remedial procedures is caused to lack firm basis, because vein is defeated
Liquid occurs medical tangle and distinguishes that responsibility needs hospital side to put to the proof, but can often be lifted without card, falls into a passive position.Existing ordinary venous infusion
Monitoring device is typically only capable to solely be monitored for single sick bed, easily by external environment influence, use it is unstable,
And function is single, it is impossible to form effective central Centralized Monitoring, lack the unified management to infusion information, medical staff passes through
Idler wheel adjusts the time-consuming difficult tune of drop speed, and since liquid weight change drop speed also changes correspondingly, it is impossible to it keeps constant, due to difference
The required temperature of liquid input human body is different, and there is no be improved the problem in the prior art.
A kind of novel transfusion device disclosed in patent document 1 is by plastic spike (1), woven hose (2), Murphy's burette (3), control
System switch (4) and piercing needle (5) are formed, and sensor (6), sensor (6) and external temperature are equipped in Murphy's burette (3)
One end connecting communication of table (7), the other end and alarm (8) connecting communication of thermometer (7).The patent, which does not have to concern, infused
The situation that infusion bottle stream is empty and fluid temperature is too low in journey and cannot find in time, but not solve fluid temperature too low for the patent
The problem of and can not automatically control transfusion speed and cut-off infuse, can not reuse on multiple disposable transfusion devices, into
This height can not avoid the risk of institute's loading liquid and patient's matching error, and liquid constant speed and steady temperature can not be caused to infuse,
Gas can not be avoided to enter human body, no multiple measurement avoids the air in woven hose as woven hose enters human body, it is impossible to from
The dynamic multiple infusion process completed under constant temperature constant speed state.
A kind of guarantor's liquid infusion apparatus that can be alarmed disclosed in patent document 2 includes the transfusion needle, dropper, drop that sequentially penetrate through setting
Bucket, hose, liquid medicine filter wherein having flow regulator to accompany alarm connection clip on transfusion needle in hose overcoat, are alarmed
Metal contact ring in instrument connection clip is in close contact with transfusion needle, and the thermosensitive probe in alarm connection clip is close to transfusion needle, gold
Belong to contact ring to be connected with conducting wire with alarm respectively with thermosensitive probe, transfusion needle lower end is provided with drop bucket shape chamber, shape intracavitary peace
Equipped with the guarantor's liquid valve that can be opened and closed.Patent transfusion needle lower end drop bucket shape intracavitary liquid drips off, and guarantor's liquid valve in dropping funnel is blocked soft
Pipe exports, and can retain liquid for a long time, and venous patient blood will not be flow backwards, but the patent can not automatically control transfusion speed and cut
It only infuses, can not reuse on multiple disposable transfusion devices, it is of high cost, institute's loading liquid and patient's matching error can not be avoided
Risk, liquid constant speed and steady temperature can not be caused to infuse, gas can not be avoided to enter human body, no multiple measurement is kept away
Exempt from the air in woven hose as woven hose enters human body, it is impossible to the multiple infusion process being automatically performed under constant temperature constant speed state.
The microprocessor that patent document 3 is disclosed in a kind of drip controller circuit part connects keyboard, photoelectricity coupling respectively
Reception pipe, wireless transceiver, display, alarm and the driver of clutch；The output port connection motor of driver；Its shell
Left surface be respectively equipped with upper lug and lower lug above and below；Upper lug leading flank is equipped with the upper slot erect, to accommodate not Fei Shi
Dropper；The transmitting tube and reception pipe of photoelectrical coupler are separately mounted to slot arranged on left and right sides；Lower lug leading flank, which is equipped with, to be erect
Lower slot, to accommodate woven hose；The card of installation control woven hose flow velocity in interior warehouse on the right side of the inside of shell and lower lug
Pipe mechanism；The front end of the pressure pipe head driven in the Ka Guan mechanisms by the motor is stretched on the right side of lower slot in lower slot.It should
Patent can automatically block infusion pipeline after the completion of drop by the pressure pipe head of Ka Guan mechanisms, prevent blood backflow, but the patent
It does not solve the problems, such as that fluid temperature is too low and transfusion speed can not be automatically controlled, can not reuse multiple disposable
It is of high cost on infusion apparatus, the risk of institute's loading liquid and patient's matching error can not be avoided, can not cause liquid constant speed and perseverance
Constant temperature degree is infused, and gas can not be avoided to enter human body, no multiple measurement avoids the air in woven hose as woven hose enters
Human body, it is impossible to the multiple infusion process being automatically performed under constant temperature constant speed state.
Therefore, it is necessary to provide a kind of multiple infusion process and safety that can be automatically performed simultaneously under constant temperature constant speed state
Comfortable automatic venous transfusion control system and its infusion method.
Prior art literature
Patent document
Patent document 1：Chinese patent discloses No. CN202161636U
Patent document 2：Chinese patent discloses No. CN2850625Y
Patent document 3：Chinese patent discloses No. CN103446642A
The content of the invention
The inventors of the present invention have made intensive studies in order to achieve the above objectives, and specifically, the present invention provides one kind certainly
Arteriovenous transfusion control system including at least one intravenous infusion device, is detachably connected to the intravenous infusion device
On venous transfusion control device and wireless connection described in venous transfusion control device host computer.
The intravenous infusion device include by hose be tightly connected sequentially penetrate through the liquid storage container of setting, murphy's dropper and
Transfusion needle, the liquid in liquid storage container instill transfusion needle via the murphy's dropper, and the hose is equipped with the stream for adjusting flow
Adjuster is measured, the adjustment state of the flow regulator is dead head condition to nonextruding hose state,
The venous transfusion control device includes：
Identification element, the identification element being located on intravenous infusion device send flag data to the host computer, the mark
Numeration includes at least predetermined according to patient data, liquid storage container data and transfusion state data, the transfusion state data are included
Liquid drop speed data and predetermined temperature data,
Liquid level sensor is removably attached to the pre-determined bit of the liquid storage container outer wall via the first clamping device
It puts, when the liquid level sensor can't detect liquid level, transmission stop signal to the host computer,
Temperature sensor is removably attached to the liquid storage container outer wall, the temperature via the first clamping device
Sensor sends temperature data to the host computer,
Heating element is removably attached to the liquid storage container outer wall, the heating unit via the first clamping device
The heating signal heating that part is sent based on host computer,
Liquid drop speed sensor is removably attached to via the second clamping device in the murphy's dropper outer wall
Portion, the liquid drop speed sensor sends the liquid drop speed data of drips in murphy's dropper to the host computer, when described
Liquid drop speed sensor does not detect liquid drop speed data in the given time, and the liquid drop speed sensor, which is sent, stops letter
Number to the host computer,
Speed control unit is removably attached to via the 3rd clamping device on the flow regulator, the speed
Degree control device includes automatically controlled direct current generator and the actuator being connected in the rotation axis of the automatically controlled direct current generator, the driving
Part couples the flow regulator, and the speed control unit causes the actuator to drive based on the speed signal that host computer is sent
The flow regulator is moved to adjust adjustment state,
Detector is removably attached to the murphy's dropper and the flow-rate adjustment via the 4th clamping device
On hose between device, when the detector is detected in hose there are gas, stop signal is sent to described upper
Machine,
The host computer includes：
Recognition unit identifies the identification element, and the body of the intravenous infusion device is read based on the flag data
Part and the liquid drop speed and temperature that predetermined liquid drop speed data and predetermined temperature data are set to the intravenous infusion device
Spend control targe,
Processing unit does not meet the predetermined temperature data, processing unit when host computer receives the temperature data
It sends heating signal and causes liquid constant temperature in the liquid storage container in the predetermined temperature data to the heating element,
The predetermined liquid drop speed data, processing unit hair are not met when host computer receives the liquid drop speed data
Speed signal is sent so that the liquid drop speed data of drips in murphy's dropper are constant described pre- to the speed control unit
Fixed liquid drop speed data,
When the host computer receives stop signal, processing unit sends zero velocity signal to the speed control unit
So that the adjustment state of the flow regulator is dead head condition.
In the automatic venous transfusion control system, the liquid level sensor includes being located at liquid storage container outer wall one side
Light-emitting component and be located at the light-sensitive element of liquid storage container outer wall opposite side, when the light path that light-emitting component is sent is not by liquid barrier
When, liquid level sensor sends stop signal to the host computer, and the liquid drop speed sensor includes timer, is located at Mo Fei drops
The LASER Discharge Tube of pipe one side and the laser pick-off pipe for being located at murphy's dropper opposite side, when the laser that LASER Discharge Tube is sent is by liquid
When drop hinders, the liquid drop speed sensor counts and the time based on timer calculates the liquid drop speed data of drips,
The detector includes being located at the piezoelectric supersonic wave transducer for sending ultrasonic wave of hose one side and is located at hose opposite side
Ultrasonic probe, ultrasonic receiver, when there are during gas, the detector sends stop signal to the host computer in hose.
In the automatic venous transfusion control system, the flow regulator includes tilting tangent track with hose
And adjustment gear on the track is set, the track includes the first end nearest from hose and farthest from hose second
End, the adjustment gear are moved to second end from the first end and cause hose from dead head condition to nonextruding hose state,
The actuator is the rack for engaging the adjustment gear.
In the automatic venous transfusion control system, identification element be RFID element or Quick Response Code, first, second,
3rd and/or the 4th clamping device is elastic clamping pieces or rigid removable connector, and the heating element is resistance wire layer.
In the automatic venous transfusion control system, the intravenous infusion device is hung on venous transfusion stent, institute
Stating venous transfusion stent includes movable pedestal and the retractable support lever being located on the pedestal.
In the automatic venous transfusion control system, the host computer be mobile phone, pad or cloud server, it is described
Host computer includes at least nothing via venous transfusion control device described in wireless telecom equipment wireless connection, the wireless telecom equipment
Line local area network communication equipment and/or mobile communication network device, the mobile communication network device include 2G/3G/4G channel radios
Believe chip, wireless LAN communication equipment includes one in bluetooth, ZigBee or Wi-Fi module.
In the automatic venous transfusion control system, the recognition unit is RFID identification device or two-dimensional code scanning
Device, the host computer includes the display interface and attention device that show the transfusion state of all intravenous infusion devices, when host computer connects
When receiving stop signal, the attention device sends warning, and the attention device includes buzzer and/or LED light.
In the automatic venous transfusion control system, processing unit includes digital signal processor, special integrated electricity
Road ASIC or on-site programmable gate array FPGA, processing unit include memory, and the memory can include one or more
Read only memory ROM, random access memory ram, flash memory or Electrical Erasable programmable read only memory EEPROM.
In the automatic venous transfusion control system, it is a quiet that the automatic venous transfusion control system includes 2-300
Arteries and veins infusion device, the intravenous infusion device are disposable apparatus, and the liquid storage container is infusion bottle or infusion bag, described predetermined
The bottom surface 1-1.5 centimeters of the liquid storage container in position.
According to another aspect of the present invention, a kind of infusion method using the automatic venous transfusion control system includes
Following steps：
In the first step, intravenous infusion device is hung on stent, liquid level sensor is removable via the first clamping device
It is fixed on the precalculated position of the liquid storage container outer wall with unloading, temperature sensor is removably attached to via the first clamping device
The liquid storage container outer wall, heating element are removably attached to the liquid storage container outer wall, drop via the first clamping device
Velocity sensor is removably attached to the middle and upper part of the murphy's dropper outer wall, speed control unit via the second clamping device
It is removably attached to via the 3rd clamping device on the flow regulator, detector is removable via the 4th clamping device
It is fixed on unloading on the hose between the murphy's dropper and the flow regulator；
In the second step, liquid level sensor and temperature sensor detect the liquid level of liquid storage container and temperature and send respectively
To the host computer, the liquid drop speed sensor sends the liquid drop speed data of drips in murphy's dropper to described upper
Machine, the detector, which detects, whether there is gas in hose,
In third step, recognition unit identifies the identification element, and it is defeated to read the vein based on the flag data
The identity of liquid device and the liquid that predetermined liquid drop speed data and predetermined temperature data are set to the intravenous infusion device
Speed and control target temperature are dripped, when the temperature data that host computer receives temperature sensor does not meet the predetermined temperature number
According to processing unit sends heating signal and causes the liquid constant temperature in the liquid storage container described predetermined to the heating element
Temperature data, when the liquid drop speed data that host computer receives liquid drop speed sensor do not meet the predetermined liquid drop speed number
According to processing unit transmission speed signal to the speed control unit causes the liquid drop speed data of drips in murphy's dropper
It is constant in the predetermined liquid drop speed data, when the host computer is received from liquid level sensor, liquid drop speed sensor
And/or detector stop signal when, processing unit is sent described in zero velocity signal causes to the speed control unit
The adjustment state of flow regulator is dead head condition.
The technique effect of the present invention is as follows：
Automatic venous transfusion control system according to the present invention and its infusion method, can control multiple venous transfusions simultaneously
The infusion process of device, the detachably connected intravenous infusion device of venous transfusion control device cause the present invention may be reused
On single intravenous infusion device, cost is saved considerably, disposable infusion device need not be transformed, the present invention is suitable
Ying Xingqiang, the present invention can obtain patient data, liquid storage container data and transfusion state data by identification element, avoid institute
The risk of loading liquid and patient's matching error, improves infusion safety, due to the required speed of different liquids input human body
Degree and temperature are different, and the present invention passes through drips in liquid drop speed sensor and speed control unit murphy's dropper
Liquid drop speed data it is constant in the predetermined liquid drop speed data, pass through temperature sensor and the heating element storage
Liquid constant temperature in liquid container reduces patient fluid infusion's in the predetermined temperature data, constant speed and steady temperature infusion
Discomfort and improve drug effect, the present invention is detected in liquid by detector with the presence or absence of gas, avoid gas into
Enter human body, improve the security of infusion, automatic venous transfusion control system of the invention passes through liquid level sensor, liquid drop speed
Sensor and detector is triple detects whether that liquid is totally lost, avoids the air in woven hose as woven hose enters people
Body, damages human body or liquid is also completely defeated just plucks bottle to the greatest extent and take pipe that drug effect is caused to reduce, of the invention defeated from arteriovenous
Liquid control system and its method can be automatically performed multiple infusion process and safety and comfort under constant temperature constant speed state simultaneously.
Description of the drawings
Fig. 1 is the overall structure diagram of an embodiment of the automatic venous transfusion control system of the present invention.
Fig. 2 be an embodiment of the automatic venous transfusion control system of the present invention to be detachably connected to the vein defeated
The structure diagram of venous transfusion control device on liquid device.
Fig. 3 is step schematic diagram of the present invention using the infusion method of automatic venous transfusion control system.
Symbol description：
1 intravenous infusion device；
2 venous transfusion control devices；
3 host computers；
4 liquid storage containers；
5 murphy's droppers；
6 transfusion needles；
7 flow regulators；
8 identification elements；
9 liquid level sensors；
10 first clamping devices；
11 temperature sensors；
12 heating elements；
13 liquid drop speed sensors；
14 second clamping devices；
15 speed control units；
16 the 3rd clamping devices；
17 detectors；
18 the 4th clamping devices；
19 processing units；
20 recognition units
Specific embodiment
Specific embodiments of the present invention are more fully described below with reference to accompanying drawings.Although show the present invention's in attached drawing
Specific embodiment, it being understood, however, that may be realized in various forms the present invention without should be limited by embodiments set forth here
System.It is to be able to be best understood from the present invention on the contrary, providing these embodiments, and can be complete by the scope of the present invention
Be communicated to those skilled in the art.
It should be noted that some vocabulary is used to censure specific components among specification and claim.Ability
Field technique personnel it would be appreciated that, technical staff may call same component with different nouns.This specification and right
It is required that not in a manner that the difference of noun is used as and distinguishes component, but differentiation is used as with the difference of component functionally
Criterion."comprising" or " comprising " as mentioned in working as in specification in the whole text and claim are an open language, therefore should be solved
It is interpreted into " including but not limited to ".Specification subsequent descriptions for implement the present invention better embodiment, so it is described description be with
For the purpose of the rule of specification, the scope of the present invention is not limited to.Protection scope of the present invention is when regarding appended right
It is required that subject to institute's defender.
For ease of the understanding to the embodiment of the present invention, done further by taking several specific embodiments as an example below in conjunction with attached drawing
Explanation, and each attached drawing does not form the restriction to the embodiment of the present invention.
Specifically, the cold automatic venous transfusion control system of the present invention as shown in Figure 1, automatic venous transfusion control system
Including at least one intravenous infusion device 1, the venous transfusion control device being detachably connected on the intravenous infusion device 1
2 and wireless connection described in venous transfusion control device 2 host computer 3.
The intravenous infusion device 1 includes the liquid storage container 4, the murphy's dropper that sequentially penetrate through setting that are tightly connected by hose
5 and transfusion needle 6, the liquid in liquid storage container 1 inputs transfusion needle 6 via the murphy's dropper 5, and the hose, which is equipped with to adjust, to flow
The flow regulator 7 of amount, the adjustment state of the flow regulator 7 is dead head condition to nonextruding hose state,
The venous transfusion control device 2 includes：
Identification element 8, the identification element 8 being located on intravenous infusion device 1 send flag data to the host computer 3, institute
Stating flag data includes patient data, liquid storage container data and transfusion state data, and the transfusion state data include at least pre-
Fixed liquid drop speed data and predetermined temperature data,
Liquid level sensor 9 is removably attached to the predetermined of 4 outer wall of liquid storage container via the first clamping device 10
Position, when the liquid level sensor 9 can't detect liquid level, transmission stop signal to the host computer 3,
Temperature sensor 11 is removably attached to 4 outer wall of liquid storage container via the first clamping device 10, described
Temperature sensor 11 sends temperature data to the host computer 3,
Heating element 12 is removably attached to 4 outer wall of liquid storage container via the first clamping device 10, described to add
The heating signal heating that thermal element 12 is sent based on host computer,
Liquid drop speed sensor 13 is removably attached to 5 outer wall of murphy's dropper via the second clamping device 14
Middle and upper part, the liquid drop speed sensor 13 sends the liquid drop speed data of drips in murphy's dropper 5 to described upper
Machine 3, when the liquid drop speed sensor 13 does not detect liquid drop speed data, the liquid drop speed sensing in the given time
Device 13 sends stop signal to the host computer 3,
Speed control unit 15 is removably attached to via the 3rd clamping device 16 on the flow regulator 7, institute
Stating speed control unit 15 includes automatically controlled direct current generator and the actuator being connected in the rotation axis of the automatically controlled direct current generator, institute
It states actuator and couples the flow regulator 7, the speed control unit 15 causes institute based on the speed signal that host computer 3 is sent
Stating actuator drives the flow regulator 7 to adjust its adjustment state,
Detector 17 is removably attached to the murphy's dropper 4 and the stream via the 4th clamping device 18
Measure on the hose between adjuster 7, when the detector 17 is detected in hose there are gas, send stop signal to
The host computer 3,
The host computer 3 includes：
Recognition unit 20 identifies the identification element 8, and the intravenous infusion device 1 is read based on the flag data
Identity and predetermined liquid drop speed data and predetermined temperature data are set to the liquid drop speed of the intravenous infusion device 1
And control target temperature,
Processing unit 19 does not meet the predetermined temperature data when host computer 3 receives the temperature data, and processing is single
Member 19 sends heating signal to the heating element 12 so that the liquid constant temperature in the liquid storage container is in the predetermined temperature
Data do not meet the predetermined liquid drop speed data when host computer 3 receives the liquid drop speed data, and processing unit 19 is sent out
Speed signal is sent to the speed control unit 15 so that the liquid drop speed data of drips are constant described in murphy's dropper 5
Predetermined liquid drop speed data, when the host computer 3 receives stop signal, processing unit 19 sends zero velocity signal to institute
Speed control unit 15 is stated so that the adjustment state of the flow regulator 15 is dead head condition.
The automatic venous transfusion control system of the present invention can control the infusion process of multiple intravenous infusion devices simultaneously, quiet
It is defeated in disposable vein that 2 detachably connected intravenous infusion device 1 of arteries and veins transfusion control device so that the present invention may be reused
On liquid device 1, cost is saved considerably, disposable infusion device need not be transformed, the present invention is adaptable, the present invention
Patient data, liquid storage container data and transfusion state data can be obtained by identification element, avoid institute's loading liquid and patient
The risk of matching error, improves infusion safety, since the required speed and temperature of different liquids input human body are not
With, the liquid drop speed that the present invention passes through drips in liquid drop speed sensor and speed control unit murphy's dropper 5
Data are constant in the predetermined liquid drop speed data, by temperature sensor and the heating element liquid storage container
Liquid constant temperature in the predetermined temperature data, constant speed and steady temperature infusion reduce patient fluid infusion discomfort and
Drug effect is improved, the present invention is detected in liquid with the presence or absence of gas by detector, avoids gas and enter human body, improved
The security of infusion, automatic venous transfusion control system of the invention pass through liquid level sensor 9,13 and of liquid drop speed sensor
The triple securities for detecting whether that liquid is totally lost, significantly improving infusion of detector 17, it is of the invention defeated from arteriovenous
Liquid control system can be automatically performed multiple infusion process and safety and comfort under constant temperature constant speed state simultaneously.
Fig. 2 be an embodiment of the automatic venous transfusion control system of the present invention to be detachably connected to the vein defeated
The structure diagram of venous transfusion control device on liquid device, as shown in Fig. 2, the automatic venous transfusion control of the present invention
In the preferred embodiment of system processed, the liquid level sensor 9 includes being located at the light-emitting component of 4 outer wall one side of liquid storage container and be located at
The light-sensitive element of 4 outer wall opposite side of liquid storage container, when the light path that light-emitting component is sent is not by liquid barrier, liquid level sensor 9
Stop signal is sent to the host computer 3, the light-emitting component and light-sensitive element being arranged symmetrically can detect liquid storage container 4 exactly
In the liquid level of liquid whether be reduced to precalculated position, which can be adjusted according to transfusion speed.
The liquid drop speed sensor 13 includes timer, is located at the LASER Discharge Tube of 5 one side of murphy's dropper and is located at ink
The laser pick-off pipe of luxuriant and rich with fragrance 5 opposite side of dropper, when the laser that LASER Discharge Tube is sent is hindered by drop, the liquid drop speed sensing
Device 13 counts and the time based on timer calculates the liquid drop speed data of drips, LASER Discharge Tube and laser pick-off pipe energy
Enough accurately to measure liquid drop speed, being disturbed property is small, and precision is high.The detector 17 includes being located at sending for hose one side
The piezoelectric supersonic wave transducer of ultrasonic wave and the ultrasonic probe, ultrasonic receiver for being located at hose opposite side, when in hose there are during gas,
The detector 17 sends stop signal to the host computer 3, and ultrasonic transducer can measure the gas in preset range
Body is quick on the draw, and improves detection result and detection speed.
In the preferred embodiment of the automatic venous transfusion control system of the present invention, the flow regulator 7 includes
Tangent track is tilted with hose and sets adjustment gear on the track, and the track includes first nearest from hose
End and the second end farthest from hose, the adjustment gear are moved to second end from the first end and cause hose from zero delivery shape
For state to nonextruding hose state, the actuator is the rack for engaging the adjustment gear.By automatically controlled direct current generator, rack and
The precision-fit of adjustment gear, speed control unit can control flow regulator 7 accurately to adjust so that transfusion speed is maintained at
Predetermined speed.In one embodiment, it is constant to improve transfusion speed by closed-loop control flow regulator 7 for speed control unit
In the stability of predetermined speed.
In the preferred embodiment of the automatic venous transfusion control system of the present invention, identification element 8 is RFID element
Or Quick Response Code, first, second, third and/or the 4th clamping device 10,14,16,18 connect for elastic clamping pieces or rigid removable
Fitting, the heating element 12 are resistance wire layer.
In the preferred embodiment of the automatic venous transfusion control system of the present invention, the intravenous infusion device 1 is hung
On venous transfusion stent, the venous transfusion stent includes movable pedestal and the retractable supports being located on the pedestal
Bar.
The present invention the automatic venous transfusion control system preferred embodiment in, the host computer 3 for mobile phone,
Pad or cloud server, the host computer 3 are described via venous transfusion control device described in wireless telecom equipment wireless connection
Wireless telecom equipment includes at least wireless LAN communication equipment and/or mobile communication network device, the mobile communications network
Equipment includes 2G/3G/4G wireless communication chips, and wireless LAN communication equipment is included in bluetooth, ZigBee or Wi-Fi module
One.
In the preferred embodiment of the automatic venous transfusion control system of the present invention, the recognition unit 20 is RFID
Identifier or dimensional code scanner, the host computer 3 include the display interface for showing the transfusion state of all intravenous infusion devices 1
And attention device, when host computer 3 receives stop signal, the attention device sends warning, the attention device include buzzer and/
Or LED light.The automatic venous transfusion control system of the present invention can warn staff and provide full-range transfusion state
Information.
In the preferred embodiment of the automatic venous transfusion control system of the present invention, processing unit 19, which includes number, to be believed
Number processor, application-specific integrated circuit ASIC or on-site programmable gate array FPGA, processing unit 19 include memory, the storage
Device can include one or more read only memory ROMs, random access memory ram, flash memory or Electrical Erasable can
Program read-only memory EEPROM.
In the preferred embodiment of the automatic venous transfusion control system of the present invention, the automatic venous transfusion control
System includes 2-300 intravenous infusion device 1, and the intravenous infusion device 1 is disposable apparatus, and the liquid storage container 4 is defeated
Liquid bottle or infusion bag, bottom surface 1-1.5 centimeters of the precalculated position from the liquid storage container 4.
In the preferred embodiment of the automatic venous transfusion control system of the present invention, in transfusion needle 6 and flow-rate adjustment
Hose between device is equipped with electric-control stop valve, and when host computer 3 receives stop signal, electric-control stop valve ends the liquid flow of hose
It is logical.
Fig. 3 be the present invention the automatic venous transfusion control system of utilization infusion method step schematic diagram, a kind of utilization
The infusion method of automatic venous transfusion control system comprises the following steps：
In first step S1, intravenous infusion device 1 is hung on stent, liquid level sensor 9 is via the first clamping device
10 are removably attached to the precalculated position of 4 outer wall of liquid storage container, and temperature sensor 11 can via the first clamping device 10
4 outer wall of liquid storage container is releasably fixed on, heating element 12 is removably attached to described via the first clamping device 10
4 outer wall of liquid storage container, liquid drop speed sensor 13 are removably attached to via the second clamping device 14 outside the murphy's dropper 5
The middle and upper part of wall, speed control unit 15 are removably attached to via the 3rd clamping device 16 on the flow regulator 7, gas
Detector 17 is removably attached to via the 4th clamping device 18 between the murphy's dropper 5 and the flow regulator 7
Hose on.
In second step S2, liquid level sensor 9 and temperature sensor 11 detect the liquid level and temperature of liquid storage container 4 respectively
And the host computer 3 is sent to, the liquid drop speed sensor 13 sends the liquid drop speed data of drips in murphy's dropper 5
To the host computer 3, the detector 17, which detects, whether there is gas in hose.
In third step, recognition unit 20 identifies the identification element 8, and the vein is read based on the flag data
The identity of infusion device 1 and predetermined liquid drop speed data and predetermined temperature data are set to the intravenous infusion device 1
Liquid drop speed and control target temperature, when host computer 3 receive temperature sensor 11 temperature data do not meet it is described predetermined
Temperature data, processing unit 19 send heating signal to the heating element 12 cause the liquid storage container 4 in liquid constant
Temperature is in the predetermined temperature data, when the liquid drop speed data that host computer 3 receives liquid drop speed sensor 13 do not meet institute
Predetermined liquid drop speed data are stated, 19 transmission speed signal of processing unit causes to the speed control unit in murphy's dropper 5
The liquid drop speed data of drips are constant in the predetermined liquid drop speed data, when the host computer 3 is received from liquid
During the stop signal of level sensor 9, liquid drop speed sensor 13 and/or detector 17, processing unit 19 sends zero velocity
Signal is to the speed control unit 15 so that the adjustment state of the flow regulator 7 is dead head condition.
This method is compared with traditional technology, and automatic venous transfusion control system of the invention can control multiple veins simultaneously
The infusion process of infusion device may be reused on single intravenous infusion device 1, save considerably cost, adaptability
By force, constant speed and steady temperature infusion of the present invention reduces the discomfort of patient fluid infusion and improves drug effect, and the present invention is kept away
Gas is exempted from and has entered human body, improved the security of infusion, automatic venous transfusion control system of the invention passes through level sensing
Device 9, liquid drop speed sensor 13 and the triple safety for detecting whether that liquid is totally lost, significantly improving infusion of detector 17
Property, automatic venous transfusion control system of the invention can be automatically performed simultaneously multiple infusion process under constant temperature constant speed state and
Safety and comfort.
Industrial applicibility
The automatic venous transfusion control system and infusion method of the present invention can be manufactured and used with medical field.
Although embodiment of the present invention is described above in association with attached drawing, the invention is not limited in above-mentioned
Specific embodiments and applications field, above-mentioned specific embodiment are only schematical, directiveness rather than restricted
's.Those of ordinary skill in the art are under the enlightenment of this specification and in the scope for not departing from the claims in the present invention and being protected
In the case of, a variety of forms can also be made, these belong to the row of protection of the invention.
Claims (10)
1. a kind of automatic venous transfusion control system, including at least one intravenous infusion device (1), is detachably connected to institute
State venous transfusion control device (2) described in venous transfusion control device (2) and the wireless connection on intravenous infusion device (1)
Host computer (3), it is characterised in that：
The intravenous infusion device (1) includes the liquid storage container (4), the murphy's dropper that sequentially penetrate through setting that are tightly connected by hose
(5) and transfusion needle (6), the liquid in liquid storage container (1) is via the murphy's dropper (5) input transfusion needle (6), on the hose
Equipped with the flow regulator (7) for adjusting flow, the adjustment state of the flow regulator (7) is dead head condition to nonextruding soft
Tubulose state,
The venous transfusion control device (2) includes：
Identification element (8), the identification element (8) being located on intravenous infusion device (1) send flag data to the host computer
(3), the flag data includes patient data, liquid storage container data and transfusion state data, and the transfusion state data are at least
Including predetermined liquid drop speed data and predetermined temperature data,
Liquid level sensor (9) is removably attached to the pre- of the liquid storage container (4) outer wall via the first clamping device (10)
Positioning is put, when the liquid level sensor (9) can't detect liquid level, transmission stop signal to the host computer (3),
Temperature sensor (11) is removably attached to the liquid storage container (4) outer wall, institute via the first clamping device (10)
It states temperature sensor (11) and sends temperature data to the host computer (3),
Heating element (12) is removably attached to the liquid storage container (4) outer wall via the first clamping device (10), described
Heating element (12) is based on the heating signal heating that host computer (3) is sent,
Liquid drop speed sensor (13) is removably attached to the murphy's dropper (5) outside via the second clamping device (14)
The middle and upper part of wall, the liquid drop speed sensor (13) send the liquid drop speed data of drips in murphy's dropper (5) to institute
Host computer (3) is stated, when the liquid drop speed sensor (13) does not detect liquid drop speed data, the liquid in the given time
It drips velocity sensor (13) and sends stop signal to the host computer (3),
Speed control unit (15) is removably attached to via the 3rd clamping device (16) on the flow regulator (7),
The speed control unit (15) includes automatically controlled direct current generator and the driving being connected in the rotation axis of the automatically controlled direct current generator
Part, the actuator couple the flow regulator (7), and the speed control unit (15) is based on the speed that host computer (3) is sent
Degree signal causes the actuator that the flow regulator (7) is driven to adjust its adjustment state,
Detector (17) is removably attached to the murphy's dropper (4) and described via the 4th clamping device (18)
On hose between flow regulator (7), when the detector (17) detects that there are gas, transmission stoppings in hose
Signal to the host computer (3),
The host computer (3) includes：
Recognition unit (20) identifies the identification element (8), and the intravenous infusion device is read based on the flag data
(1) identity and the liquid that predetermined liquid drop speed data and predetermined temperature data are set to the intravenous infusion device (1)
Speed and control target temperature are dripped,
Processing unit (19) does not meet the predetermined temperature data when host computer (3) receives the temperature data, and processing is single
First (19) send heating signal to the heating element (12) so that the liquid constant temperature in the liquid storage container is described predetermined
Temperature data does not meet the predetermined liquid drop speed data when host computer (3) receives the liquid drop speed data, and processing is single
First (19) transmission speed signal causes the liquid drop speed number of drips in murphy's dropper (5) to the speed control unit (15)
According to constant in the predetermined liquid drop speed data, when the host computer (3) receives stop signal, processing unit (19) hair
Zero velocity signal is sent to the speed control unit (15) so that the adjustment state of the flow regulator (15) is zero delivery shape
State.
2. automatic venous transfusion control system according to claim 1, it is characterised in that：Liquid level sensor (9) bag
The light-emitting component for being located at liquid storage container (4) outer wall one side and the light-sensitive element for being located at liquid storage container (4) outer wall opposite side are included, works as hair
When the light path that optical element is sent is not by liquid barrier, liquid level sensor (9) sends stop signal to the host computer (3), described
Liquid drop speed sensor (13) includes timer, the LASER Discharge Tube for being located at murphy's dropper (5) one side and is located at murphy's dropper (5)
The laser pick-off pipe of opposite side, when the laser that LASER Discharge Tube is sent is hindered by drop, the liquid drop speed sensor (13)
It counts and time based on timer calculates the liquid drop speed data of drips, the detector (17) includes being located at soft
Sending for pipe one side and is located at the ultrasonic probe, ultrasonic receiver of hose opposite side at the piezoelectric supersonic wave transducer of ultrasonic wave, when in hose
There are during gas, the detector (17) sends stop signal to the host computer (3).
3. automatic venous transfusion control system according to claim 1, it is characterised in that：Flow regulator (7) bag
It includes and tilts tangent track with hose and set adjustment gear on the track, the track includes nearest from hose the
One end and the second end farthest from hose, the adjustment gear are moved to second end from the first end and cause hose from zero delivery
For state to nonextruding hose state, the actuator is the rack for engaging the adjustment gear.
4. automatic venous transfusion control system according to claim 1, it is characterised in that：Identification element (8) is RFID members
Part or Quick Response Code, first, second, third and/or the 4th clamping device (10,14,16,18) for elastic clamping pieces or rigidity it is removable
Connector is unloaded, the heating element (12) is resistance wire layer.
5. automatic venous transfusion control system according to claim 1, it is characterised in that：The intravenous infusion device (1)
It hangs on venous transfusion stent, the venous transfusion stent includes movable pedestal and the retractable supports being located on the pedestal
Bar.
6. automatic venous transfusion control system according to claim 1, it is characterised in that：The host computer (3) for mobile phone,
Pad or cloud server, the host computer (3) is via venous transfusion control device described in wireless telecom equipment wireless connection, institute
Wireless telecom equipment is stated including at least wireless LAN communication equipment and/or mobile communication network device, the mobile radio communication
Network equipment includes 2G/3G/4G wireless communication chips, and wireless LAN communication equipment is included in bluetooth, ZigBee or Wi-Fi module
One.
7. automatic venous transfusion control system according to claim 1, it is characterised in that：The recognition unit (20) is
RFID identification device or dimensional code scanner, the host computer (3) include showing the transfusion state of all intravenous infusion devices (1)
Display interface and attention device, when host computer (3) receives stop signal, the attention device sends warning, the attention device bag
Include buzzer and/or LED light.
8. automatic venous transfusion control system according to claim 1, it is characterised in that：Processing unit (19) includes number
Signal processor, application-specific integrated circuit ASIC or on-site programmable gate array FPGA, processing unit (19) includes memory, described
It is erasable that memory can include one or more read only memory ROMs, random access memory ram, flash memory or electronics
Except programmable read only memory EEPROM.
9. automatic venous transfusion control system according to claim 1, it is characterised in that：The automatic venous transfusion control
System include 2-300 intravenous infusion device (1), the intravenous infusion device (1) be disposable apparatus, the liquid storage container
(4) it is infusion bottle or infusion bag, bottom surface 1-1.5 centimeters of the precalculated position from the liquid storage container (4).
10. a kind of infusion method of automatic venous transfusion control system using according to any one of claim 1-9,
Comprise the following steps：
In first step (S1), intravenous infusion device (1) is hung on stent, liquid level sensor (9) is via the first clamping machine
Structure (10) is removably attached to the precalculated position of the liquid storage container (4) outer wall, and temperature sensor (11) is via the first clamping
Mechanism (10) is removably attached to the liquid storage container (4) outer wall, and heating element (12) can via the first clamping device (10)
The liquid storage container (4) outer wall is releasably fixed on, liquid drop speed sensor (13) is detachable via the second clamping device (14)
Ground is fixed on the middle and upper part of the murphy's dropper (5) outer wall, and speed control unit (15) is removable via the 3rd clamping device (16)
It is fixed on unloading on the flow regulator (7), detector (17) is removably secured via the 4th clamping device (18)
On hose between the murphy's dropper (5) and the flow regulator (7)；
In second step (S2), liquid level sensor (9) and temperature sensor (11) detect respectively liquid storage container (4) liquid level and
Temperature is simultaneously sent to the host computer (3), and the liquid drop speed sensor (13) sends the liquid of drips in murphy's dropper (5)
Speed data is dripped to the host computer (3), the detector (17), which detects, whether there is gas in hose,
In third step, recognition unit (20) identifies the identification element (8), and the vein is read based on the flag data
The identity of infusion device (1) and predetermined liquid drop speed data and predetermined temperature data are set to the intravenous infusion device
(1) liquid drop speed and control target temperature, when the temperature data that host computer (3) receives temperature sensor (11) does not meet institute
Predetermined temperature data is stated, processing unit (19) sends heating signal to the heating element (12) so that the liquid storage container
(4) liquid constant temperature in is in the predetermined temperature data, when host computer (3) receives the drop of liquid drop speed sensor (13)
Speed data does not meet the predetermined liquid drop speed data, and processing unit (19) transmission speed signal is filled to the speed control
It puts so that the liquid drop speed data of drips are constant in the predetermined liquid drop speed data in murphy's dropper (5), when described
Host computer (3) receives the stopping from liquid level sensor (9), liquid drop speed sensor (13) and/or detector (17)
During signal, processing unit (19) sends zero velocity signal to the speed control unit (15) so that the flow regulator (7)
Adjustment state be dead head condition.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711309480.XA CN108057143A (en) | 2017-12-11 | 2017-12-11 | Automatic venous transfusion control system and its infusion method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711309480.XA CN108057143A (en) | 2017-12-11 | 2017-12-11 | Automatic venous transfusion control system and its infusion method |
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Application publication date: 20180522 |