CN207640775U - A kind of ventilator humidifier automatic liquid supply system - Google Patents
A kind of ventilator humidifier automatic liquid supply system Download PDFInfo
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- CN207640775U CN207640775U CN201720418578.8U CN201720418578U CN207640775U CN 207640775 U CN207640775 U CN 207640775U CN 201720418578 U CN201720418578 U CN 201720418578U CN 207640775 U CN207640775 U CN 207640775U
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- liquid level
- level sensor
- voltage stabilizing
- humidification
- stabilizing module
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- 239000007788 liquid Substances 0.000 title claims abstract description 153
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 33
- 238000002347 injection Methods 0.000 claims abstract description 24
- 239000007924 injection Substances 0.000 claims abstract description 24
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000008186 active pharmaceutical agent Substances 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 6
- 239000008280 blood Substances 0.000 abstract description 6
- 210000004369 blood Anatomy 0.000 abstract description 6
- 239000001301 oxygen Substances 0.000 abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 abstract description 6
- 206010036790 Productive cough Diseases 0.000 abstract description 5
- 230000007423 decrease Effects 0.000 abstract description 5
- 206010021133 Hypoventilation Diseases 0.000 abstract description 4
- 208000024794 sputum Diseases 0.000 abstract description 4
- 210000003802 sputum Anatomy 0.000 abstract description 4
- 239000008227 sterile water for injection Substances 0.000 description 15
- 239000007789 gas Substances 0.000 description 10
- 210000004072 lung Anatomy 0.000 description 8
- 239000012530 fluid Substances 0.000 description 7
- 238000009423 ventilation Methods 0.000 description 6
- 230000029058 respiratory gaseous exchange Effects 0.000 description 5
- 210000002345 respiratory system Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 208000015181 infectious disease Diseases 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000474 nursing effect Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000000844 transformation Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005399 mechanical ventilation Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000008215 water for injection Substances 0.000 description 2
- 208000000884 Airway Obstruction Diseases 0.000 description 1
- 206010003598 Atelectasis Diseases 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 208000003322 Coinfection Diseases 0.000 description 1
- 206010021036 Hyponatraemia Diseases 0.000 description 1
- 206010062717 Increased upper airway secretion Diseases 0.000 description 1
- 208000007101 Muscle Cramp Diseases 0.000 description 1
- 208000007123 Pulmonary Atelectasis Diseases 0.000 description 1
- 208000005392 Spasm Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 210000005091 airway smooth muscle Anatomy 0.000 description 1
- 230000001886 ciliary effect Effects 0.000 description 1
- 238000003759 clinical diagnosis Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000004064 dysfunction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 208000026435 phlegm Diseases 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
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- Air Humidification (AREA)
Abstract
The utility model discloses a kind of ventilator humidifier automatic liquid supply systems, including humidification machine host and humidification pot, high liquid level sensor is arranged in humidifying pot sidewall and low liquid level sensor, high liquid level sensor and low liquid level sensor are connected to the automatic liquid supply control system in humidification machine host；Automatic liquid supply control system includes transformer, rectifier bridge, the first Voltage stabilizing module and the second Voltage stabilizing module, and the output end of the first Voltage stabilizing module is sequentially connected normal open switch, normally closed switch and peristaltic pump, and normal open switch and normally closed switch both ends are parallel with manual switch；Peristaltic pump is set on woven hose, and woven hose one end connects injection water bottle, and the other end is connected to liquid injection port.The utility model can have clear improvement in hypoventilation, blood oxygen saturation decline, patient's discomfort and thick sputum etc..
Description
Technical field
The utility model is related to a kind of lung ventilator fields, and more specifically, it relates to a kind of ventilator humidifiers to mend automatically
Liquid system.
Background technology
With the development of medicine, lung ventilator function constantly improve, it is patient with severe symptoms's that mechanical ventilation, which has become clinical rescue,
Important means.When mechanical ventilation, gas enters lower respiratory tract by artificial airway, and the heating and humidifying for losing the upper respiratory tract are made
With.Gas without humidifying necessarily causes that lower respiratory tract dehydration, mucous membrane are dry, secretion is dry and hard, ciliary movement subtracts into air entering flue
It is weak, expectoration is unsmooth, be easy to happen the complication such as airway obstruction, atelectasis and secondary infection.Therefore, using airway Humidification when lung ventilator
Change is the key link of artificial airway's nursing, and the wet and slippery effect of air flue directly affects the quality of artificial airway's nursing.And tradition breathing
Machine humidification machine has the following problems：
(1) state of an illness is aggravated：Disconnecting when breathing circuit adds sterilized water for injection causes ventilation to interrupt, and causes patient ventilation not
Foot or even blood oxygen saturation decline, and conscious patient often tells sense of feeling suffocated.
(2) increase infection probability：Due to disconnecting breathing circuit repeatedly, increase the infection chance of corrugated hose, or even sometimes
Condensed water spluttering in pipeline, is unfavorable for the self-protection of medical staff；
(3) increase the workload of medical staff：Every time plus water for injection need to disconnect breathing circuit, then add water to lung ventilator
Humidification pot at least needs 2~3min to required scale, each patient per；
(4) humidification fluid temperature is reduced：Once plus default temperature is not achieved in dilutional hyponatremia, short time internal respiration machine humidification machine temperature
Degree, the gas temperature into lower respiratory tract reduce, and airway smooth muscle spasm may be caused to lead to dysfunction of ventilation.
(5) easily cause adverse event：Since nursing staff is busy with one's work or neglects, the water of ventilator humidifier has been used
It is complete without in time plus sterilized water for injection, causing the gas without humidifying to enter lower respiratory tract, to cause adverse consequences.
Utility model content
The purpose of this utility model is to overcome deficiency in the prior art, a kind of ventilator humidifier is provided and is mended automatically
Liquid system can have clear improvement in hypoventilation, blood oxygen saturation decline and thick sputum etc..
The purpose of this utility model is achieved through the following technical solutions.
A kind of ventilator humidifier automatic liquid supply system, including humidification machine host and humidification pot, the humidification pot top are set
It is equipped with air inlet, gas outlet and liquid injection port, the humidifying pot sidewall is provided with high liquid level sensor and low liquid level sensor, described
High liquid level sensor and low liquid level sensor are connected to the automatic liquid supply control system in humidification machine host；
The automatic liquid supply control system includes that sequentially connected transformer, rectifier bridge, the first Voltage stabilizing module and second are steady
The output end of die block, first Voltage stabilizing module is connected with normal open switch, normally closed switch in turn and provides liquid injection power
Peristaltic pump, the normal open switch and normally closed switch both ends are parallel with manual switch；The output end of first Voltage stabilizing module is simultaneously
The second relay for being associated with the first relay being connected with low liquid level sensor and being connected with high liquid level sensor, described
One relay is connected with buzzer and light emitting diode, first relay and the second relay with the second Voltage stabilizing module
Output end is connected, and first relay and the second relay are all connected with microcontroller, and the microcontroller is connected with three pole of No.1
Pipe and No. two triodes, the input terminal and output end of the normal open switch coil be separately connected the second Voltage stabilizing module output end and
The collector of No.1 triode, the input terminal and output end of the normally closed switch coil are separately connected the output of the second Voltage stabilizing module
The collector at end and No. two triodes；The high liquid level sensor and low liquid level sensor are all connected with the output of the second Voltage stabilizing module
End；The peristaltic pump is set on woven hose, and described woven hose one end connects injection water bottle, and the other end is connected to liquid injection port.
The high liquid level sensor and low liquid level sensor are all made of ELS-950 type photoelectric liquid level sensors, work as humidification pot
When interior liquid level is less than low liquid level sensor height, humidification machine host sends out low liquid level sound-light alarm, the startup of peristaltic pump, humidification pot
Interior liquid level maintains on low liquid level sensor height.
The humidification machine host side wall is provided with sensor interface, and the high liquid level sensor and low liquid level sensor are logical
Sensor interface is crossed with automatic liquid supply control system to be connected.
The both ends reverse parallel connection of the normal open switch coil has the first overvoltage protection diode, the normally closed switch coil
Both ends reverse parallel connection has the second overvoltage protection diode.
Compared with prior art, advantageous effect caused by the technical solution of the utility model is：
(1) high liquid level sensor and low liquid level sensor detect sterilized water for injection liquid level in humidification pot in the utility model
Height, when liquid level is less than low liquid level sensor, automatic liquid supply control system is by the sterilized water for injection in injection water bottle
It is injected into humidification pot, until liquid level reaches high liquid level sensor, realization is automatically replenished, and ventilation will not be caused to interrupt, prevent disease
Feelings aggravate, and reduce infection probability, reduce the workload of medical staff, keep the best humiture of humidification fluid, are not easy to cause medical treatment not
Good event；
(2) the utility model can have in hypoventilation, blood oxygen saturation decline and thick sputum etc. and obviously change
It is kind；
(3) the utility model is simple in structure, need to be only transformed on the basis of existing ventilator humidifier, manufactures
It is at low cost, it is easy to operate.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the circuit diagram of automatic liquid supply control system in the utility model；
Fig. 3 is the schematic diagram of low liquid level sensor and high liquid level sensor in the utility model；
Fig. 4 is the operation principle schematic diagram of peristaltic pump in the utility model；
Reference numeral:1 injection water bottle；2 woven hoses；3 humidification machine hosts；4 sensor interfaces；5 humidification pots；6 air inlets；
7 gas outlets；8 liquid injection ports；S1 low liquid level sensors；S2 high liquid level sensors；M peristaltic pumps；The first relays of K1；The second relays of K2
Device；K3 normal open switch；K4 normally closed switch；SPK buzzers；The first overvoltage protection diodes of D1；The second overvoltage protection diodes of D2；
D3 light emitting diodes；SW manual switches；BT transformers；DS rectifier bridges；The first capacitances of C1；The second capacitances of C2；C3 third capacitances；R1
First resistor；R2 second resistances；The first Voltage stabilizing modules of DC1；The second Voltage stabilizing modules of DC2；Q1 No.1 triodes；No. bis- three poles Q2
Pipe；IC microcontrollers.
Specific implementation mode
The utility model will be further described below in conjunction with the accompanying drawings.
A kind of ventilator humidifier automatic liquid supply system of the utility model, as shown in Figure 1, including 3 He of humidification machine host
Humidification pot 5,5 top of the humidification pot are provided with air inlet 6, gas outlet 7 and liquid injection port 8, and 5 side wall of the humidification pot is provided with height
Liquid level sensor S2 and low liquid level sensor S1, specific location are in the light of actual conditions designed.3 side wall of humidification machine host
It is provided with sensor interface 4, the high liquid level sensor S2 and low liquid level sensor S1 are mended by sensor interface 4 with automatic
Liquid control system is connected, and automatic liquid supply set-up of control system is inside humidification machine host 3.
As shown in Fig. 2, the automatic liquid supply control system include sequentially connected transformer BT, it is rectifier bridge DS, first steady
Die block DC1 and the second Voltage stabilizing module DC2, the first Voltage stabilizing module DC1 use 7812 Voltage stabilizing modules, the second Voltage stabilizing module DC2 to adopt
With 7805 Voltage stabilizing modules.The output end of the first Voltage stabilizing module DC1 is connected with normal open switch K3, normally closed switch K4 in turn and carries
The peristaltic pump M, the normal open switch K3 of injection power and the both ends normally closed switch K4 are parallel with manual switch SW for liquid, described compacted
Dynamic pump M is set on woven hose 2, and 2 one end of the woven hose connects injection water bottle 1, and the other end is connected to liquid injection port 8.It is described
The output end of first Voltage stabilizing module DC1 be parallel with the first relay K1 and the second relay K2, the first relay K1 and second after
Electric appliance K2 is all made of 12 volt of 8 foot relay, can be divided into two groups of switches, and 1 ˊ, 3 ˊ, 5 ˊ feet are one group, and 2 ˊ, 4 ˊ, 6 ˊ feet are another
Group, the 7 ˊ pins of the first relay K1 and the 7 ˊ pins of the second relay K2 are connected to the output of the first Voltage stabilizing module DC1
End, the 5 ˊ pins of 5 ˊ of the first relay K1,6 ˊ pins and the second relay K2 are connected to the defeated of the second Voltage stabilizing module DC2
2 ˊ pins in parallel of outlet, the first relay K1 have the 8 ˊ pins of buzzer SPK and light emitting diode D3, the first relay K1 company
Connect low liquid level sensor S1, the second relay K2 8 ˊ pins connection high liquid level sensor S2, the high liquid level sensor S2 and
Low liquid level sensor S1 is all connected with the output end of the second Voltage stabilizing module DC2.The first relay K1 and the second relay K2 are equal
Microcontroller IC is connected, microcontroller IC uses 89C51 microcontrollers, that is, the 1 ˊ pins of the first relay K1 to be connected to 89C51's
P1.4 pins, the 3 ˊ pins of the first relay K1 are connected to the P1.6 pins of 89C51, and the 1 ˊ pins of the second relay K2 are connected to
The P1.5 pins of 89C51.The base stage of the P1.0 pins connection No.1 triode Q1 of 89C51, the emitter of No.1 triode Q1 connect
Connect first resistor R1, first resistor R1 other ends ground connection, using 1K Ω, the collector connection normal open switch K3 of No.1 triode Q1
The output end of coil, the input terminal of normal open switch K3 coils are connected to the output end of the second Voltage stabilizing module DC2, normal open switch K3 lines
The both ends reverse parallel connection of circle has the first overvoltage protection diode D1.The P1.1 pins of 89C51 connect the base stage of No. two triode Q2,
The emitter of No. two triode Q2 connects second resistance R2, second resistance R2 other ends ground connection, using 1K Ω, No. two triode Q2
Collector connection normally closed switch K4 coils output end, the input terminal of normally closed switch K4 coils is connected to the second Voltage stabilizing module
The both ends reverse parallel connection of the output end of DC2, normally closed switch K4 coils has the second overvoltage protection diode D2.
The high liquid level sensor S2 and low liquid level sensor S1 is all made of ELS-950 type photoelectric liquid level sensors, essence
Degree error is ± 1mm, and small volume, suitable the design are required.As shown in figure 3, ELS-950 type photoelectric liquid level sensors are
Refraction using light and principle of reflection, light will generate the phenomenon that reflecting or reflecting in the interface of two kinds of different mediums.When
When fluid to be measured submerges photoelectric liquid-level switch (photoelectric probe), then fluid to be measured forms a kind of interface with photoelectric liquid-level switch；
When fluid to be measured is detached from photoelectric liquid-level switch, then air forms another interface with photoelectric liquid-level switch, both boundary
Face keeps the intensity of reflected light that light receiving transistor is received inside photoelectric liquid-level switch different, that is, corresponds to two different switch shapes
State.As shown in figure 4, the peristaltic pump M uses 12V finger-like peristaltic pumps, sterilized water for injection is passed through by squeezing woven hose 2
Injection port 8 is injected into humidification pot 5.
The operation principle of the utility model：220V alternating currents are through transformer BT transformations, rectifier bridge DS rectifications and the first capacitance
Become direct current 15V voltages after C1 filtering, then again through the first Voltage stabilizing module DC1 transformations, offer+12V after the second capacitance C2 filtering
Power supply, the second Voltage stabilizing module DC2 transformations, offer+5V power supplys after the C3 filtering of third capacitance, wherein the first capacitance C1, the second capacitance
C2 and third capacitance C3 are all made of 10 μ F.12V DC voltage can be provided when manual switch SW is closed directly to peristaltic pump M, it is compacted
Dynamic pump M starts to work, and sterilized water for injection is injected humidification pot 5 by injection port 8.Single chip computer89C51 by inquire P1.4,
The ports P1.5 and P1.6 input level state come control the ports P1.0 and P1.1 output level state.High liquid level sensor S2
It is used to detect the liquid level of sterilized water for injection in humidification pot 5 with low liquid level sensor S1, when liquid level covers its photoelectric probe
When its switch be closed, otherwise high liquid level sensor S2 and low liquid level sensor S1 switches are off.The high liquid level passes
Sensor S2 and low liquid level sensor S1 detects the liquid level of sterilized water for injection in humidification pot 5, automatic liquid supply control system root
According to the start and stop of the liquid level control peristaltic pump M detected：When 5 liquid level of humidification pot is less than low liquid level sensor S1, high liquid level
Sensor S2 and low liquid level sensor S1 switches disconnect, and 5 ˊ of the first relay K1 and the second relay K2,6 ˊ feet are respectively with 1
ˊ, 2 ˊ feet are connected, at this point, buzzer SPK sends out alarm, light emitting diode D3 shines；The ports P1.4 and P1.5 of 89C51 are defeated
Enter high level, P1.0 exports high level, and P1.1 exports low level, and normal open switch K3 is closed, and normally closed switch K4 is closed, peristaltic pump M
It starts to work and sterilized water for injection is injected to humidification pot 5 by liquid injection port 8；When 5 liquid level of humidification pot rises to high liquid level sensing
When device S2, high liquid level sensor S2 and low liquid level sensor S1 switches are closed, and peristaltic pump M is stopped；At 5 liquid level of humidification pot
Between low liquid level sensor S1 and high liquid level sensor S2 or when liquid level is higher than high liquid level sensor S2, low liquid level sensor
S1 switches are closed, and high liquid level sensor S2 switches disconnect, and peristaltic pump M does not work, and liquid level can maintain low liquid level biography in humidification pot 5
On sensor S1 height.
Embodiment one
Currently, ventilator humidifier development is more mature, it is high-end with Fisher＆Paykel companies production conventional ventilator
For MR850 type humidification machines, it be provided simultaneously with gas heating, humidification, gas temperature monitor in real time, noninvasive/Invasive vent ilation pattern
Selection and correlative compensation function, but do not have automatic fluid filling function, and needing medical staff, timing (about 2h) adds to humidification pot and goes out repeatedly
Bacterium water for injection still needs to be improved there are many drawbacks, therefore researches and develops and a can remain best by automatic fluid filling function
The ventilator humidifier of liquid level range is particularly urgent.Existing correlative study shows that sterile injection is used in ventilator humidifier humidification pot
Humidifying best results when water capacity is 250ml, the utility model are high-end with Fisher＆Paykel companies production conventional ventilator
It for MR850 type humidification pots, is transformed on its basis, a diameter of 10cm, a height of 9cm, optimum level of water graduation mark is high
3.5cm.Humidification pot liquid level often rises or falls 1mm, and internal water capacity correspondence increases or decreases 7.8ml, humidification pot liquid
Position 3.2cm and 3.8cm corresponds to 226ml and 274ml water capacities respectively.The utility model is installed at the high 3.2cm in 5 side of humidification pot
High liquid level sensor S2 is installed at low liquid level sensor S1,3.8cm scale, passes through low liquid level sensor S1 and high liquid level sensor
S2 controls the M work of water filling peristaltic pump, and peristaltic pump M pushes sterilized water for injection in pipe to inject humidification pot 5 by squeezing woven hose 2.
When liquid level is less than 3.2cm in humidification pot 5, high liquid level sensor S2 and low liquid level sensor S1 switches disconnect, the
5 ˊ of one relay K1 and the second relay K2,6 ˊ feet are respectively connected with 1 ˊ, 2 ˊ feet.At this point, buzzer SPK sends out alarm
Sound, light emitting diode D3 shine；The ports the P1.4 and P1.5 input high level of 89C51, P1.0 export high level, and P1.1 outputs are low
Level, normal open switch K3 are closed, and normally closed switch K4 is closed, and peristaltic pump M starts to work and noted into humidification pot 5 by liquid injection port 8
Penetrate sterilized water for injection.When 5 liquid level of humidification pot rises to high liquid level 3.8cm, high liquid level sensor S2 and low liquid level sensor
S1 switches are closed, and peristaltic pump M is stopped.It is low when liquid level is between 3.2cm and 3.8cm in lung ventilator MR850 humidification pots
Liquid level sensor S1 switches are closed, and high liquid level sensor S2 switches disconnect, and peristaltic pump M does not work.By sterile injection in humidification pot 5
Between maintaining 226ml~274ml with water water, humidification machine gas humidification effect is made to reach optimum state.
The patient 180 that internal medicine in hospital ICU uses lung ventilator is now extracted, random to be grouped, control group 90, wherein man 36
Example, female 54,31~78 years old age, 3~10d of Ventilators time；Experimental group 90, wherein man 42, female 48,
29~75 years old age, 2~12d of Ventilators time.Two groups use Dreager Evita4 type lung ventilators, humidification machine temperature
Degree is disposed as 35~37 DEG C.For the ordinary circumstances such as 2 groups of ages, gender, the course of disease and clinical diagnosis through statistical analysis, all having can
Compare property.
Control group uses traditional water feeding method：Add sterilized water for injection (about 250ml) in ventilator humidifier, waits for that water is used soon
(about 4h) disconnects lung ventilator circuit threaded passage when complete, re-injects at sterilized water for injection value scale, and interruption adds repeatedly
Water.
Experimental group carries out the supplement of sterilized water for injection using the ventilator humidifier automatic liquid supply system of the utility model,
Wherein, the capacity of injection water bottle 1 is 500ml, with ensure the liquid level of sterilized water for injection in humidification pot be in always 3.2cm~
Between 3.8cm.
The experimental results showed that ventilator humidifier difference water feeding method is from patient ventilation's deficiency, blood oxygen saturation declines and phlegm
There is significant difference in sticky three aspect of liquid, experimental group patient has clear improvement at above-mentioned three aspect, and experimental result is shown in such as tables
1。
1 ventilator humidifier difference water feeding method effect of table compares
| Group | Number of cases | Hypoventilation | Blood oxygen saturation declines | Thick sputum |
| Control group | 90 | 90 (100%) | 52 (57.8%) | 21 (23.3%) |
| Experimental group | 90 | 7 (7.8%) | 4 (4.4%) | 5 (5.6%) |
Although the function and the course of work of the utility model are described above in conjunction with attached drawing, the utility model is simultaneously
It is not limited to above-mentioned concrete function and the course of work, the above mentioned embodiment is only schematical, rather than limits
Property, those skilled in the art are not departing from the utility model aims and right is wanted under the enlightenment of the utility model
It asks under protected ambit, many forms can also be made, these are belonged within the protection of the utility model.
Claims (4)
1. a kind of ventilator humidifier automatic liquid supply system, including humidification machine host (3) and humidification pot (5), the humidification pot (5)
Top is provided with air inlet (6), gas outlet (7) and liquid injection port (8), which is characterized in that humidification pot (5) side wall is provided with height
Liquid level sensor (S2) and low liquid level sensor (S1), the high liquid level sensor (S2) and low liquid level sensor (S1) are all connected with
Automatic liquid supply control system to humidification machine host (3)；
The automatic liquid supply control system includes sequentially connected transformer (BT), rectifier bridge (DS), the first Voltage stabilizing module (DC1)
With the second Voltage stabilizing module (DC2), the output end of first Voltage stabilizing module (DC1) is connected with normal open switch (K3), normally closed in turn
It switchs (K4) and the peristaltic pump (M) of liquid injection power is provided, the normal open switch (K3) and the both ends normally closed switch (K4) are in parallel
There is manual switch (SW)；The output end of first Voltage stabilizing module (DC1), which is parallel with, to be connected with low liquid level sensor (S1)
First relay (K1) and the second relay (K2) being connected with high liquid level sensor (S2), first relay (K1) is even
It is connected to buzzer (SPK) and light emitting diode (D3), first relay (K1) and the second relay (K2) are steady with second
The output end of die block (DC2) is connected, and first relay (K1) and the second relay (K2) are all connected with microcontroller (IC),
The microcontroller (IC) is connected with No.1 triode (Q1) and No. two triodes (Q2), the input of normal open switch (K3) coil
End and output end are separately connected the collector of the output end and No.1 triode (Q1) of the second Voltage stabilizing module (DC2), described normally closed
Switch (K4) coil input terminal and output end be separately connected the second Voltage stabilizing module (DC2) output end and No. two triodes (Q2)
Collector；The high liquid level sensor (S2) and low liquid level sensor (S1) are all connected with the output of the second Voltage stabilizing module (DC2)
End；The peristaltic pump (M) is set on woven hose (2), and woven hose (2) one end connection injection water bottle (1), the other end connects
It is connected to liquid injection port (8).
2. a kind of ventilator humidifier automatic liquid supply system according to claim 1, which is characterized in that the high liquid level passes
Sensor (S2) and low liquid level sensor (S1) are all made of ELS-950 type photoelectric liquid level sensors, and when humidification pot (5), interior liquid level is less than
When low liquid level sensor (S1) height, humidification machine host (3) sends out low liquid level sound-light alarm, the startup of peristaltic pump (M), humidification pot
(5) interior liquid level maintains on low liquid level sensor (S1) height.
3. a kind of ventilator humidifier automatic liquid supply system according to claim 1, which is characterized in that the humidification machine master
Machine (3) side wall is provided with sensor interface (4), and the high liquid level sensor (S2) and low liquid level sensor (S1) pass through sensing
Device interface (4) is connected with automatic liquid supply control system.
4. a kind of ventilator humidifier automatic liquid supply system according to claim 1, which is characterized in that the normal open switch
(K3) the both ends reverse parallel connection of coil has the first overvoltage protection diode (D1), the both ends of normally closed switch (K4) coil reversed
It is parallel with the second overvoltage protection diode (D2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201720418578.8U CN207640775U (en) | 2017-04-20 | 2017-04-20 | A kind of ventilator humidifier automatic liquid supply system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720418578.8U CN207640775U (en) | 2017-04-20 | 2017-04-20 | A kind of ventilator humidifier automatic liquid supply system |
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| CN207640775U true CN207640775U (en) | 2018-07-24 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109481815A (en) * | 2018-12-13 | 2019-03-19 | 刘刚 | Type breathing-machine humidification pot automatic water-replenishing device |
| CN110327521A (en) * | 2019-06-25 | 2019-10-15 | 桐乡市第一人民医院 | A kind of ventilator with automatic fluid filling function |
| CN111375107A (en) * | 2020-01-19 | 2020-07-07 | 湖南明康中锦医疗科技发展有限公司 | Water level monitoring system and method for water tank of respiratory support equipment and respiratory support equipment |
| CN112190797A (en) * | 2020-10-31 | 2021-01-08 | 河南省中医院（河南中医药大学第二附属医院） | Department of anesthesia uses narcotic drug atomizer |
| CN112755358A (en) * | 2021-01-23 | 2021-05-07 | 北京仰生恒泰科技有限责任公司 | Oxygen humidifying device and oxygen humidifying liquid bag |
-
2017
- 2017-04-20 CN CN201720418578.8U patent/CN207640775U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109481815A (en) * | 2018-12-13 | 2019-03-19 | 刘刚 | Type breathing-machine humidification pot automatic water-replenishing device |
| CN110327521A (en) * | 2019-06-25 | 2019-10-15 | 桐乡市第一人民医院 | A kind of ventilator with automatic fluid filling function |
| CN111375107A (en) * | 2020-01-19 | 2020-07-07 | 湖南明康中锦医疗科技发展有限公司 | Water level monitoring system and method for water tank of respiratory support equipment and respiratory support equipment |
| CN111375107B (en) * | 2020-01-19 | 2022-09-02 | 湖南明康中锦医疗科技发展有限公司 | Water level monitoring system and method for water tank of respiratory support equipment and respiratory support equipment |
| CN112190797A (en) * | 2020-10-31 | 2021-01-08 | 河南省中医院（河南中医药大学第二附属医院） | Department of anesthesia uses narcotic drug atomizer |
| CN112190797B (en) * | 2020-10-31 | 2022-07-01 | 河南省中医院（河南中医药大学第二附属医院） | Department of anesthesia uses narcotic drug atomizer |
| CN112755358A (en) * | 2021-01-23 | 2021-05-07 | 北京仰生恒泰科技有限责任公司 | Oxygen humidifying device and oxygen humidifying liquid bag |
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