CN209512987U - A kind of reflective liquid level detection device and warning device of the luxuriant and rich with fragrance pot of ink - Google Patents
A kind of reflective liquid level detection device and warning device of the luxuriant and rich with fragrance pot of ink Download PDFInfo
- Publication number
- CN209512987U CN209512987U CN201920122508.7U CN201920122508U CN209512987U CN 209512987 U CN209512987 U CN 209512987U CN 201920122508 U CN201920122508 U CN 201920122508U CN 209512987 U CN209512987 U CN 209512987U
- Authority
- CN
- China
- Prior art keywords
- sensor
- rich
- luxuriant
- ink
- fragrance pot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model provides the reflective liquid level detection device and warning device of a kind of luxuriant and rich with fragrance pot of ink, including a luxuriant and rich with fragrance pot of ink and two sensors；Sensor is made of a RF transmitter, infrared absorber and two light pipes；RF transmitter, infrared absorber are respectively placed in the light pipe of the two sides on black luxuriant and rich with fragrance pot same level face；Light pipe on RF transmitter is by ink luxuriant and rich with fragrance pot one end to having a reflector one；Light pipe on infrared absorber is equipped with a reflector two by ink luxuriant and rich with fragrance pot one end upwards；Sensor one is set to the top of black luxuriant and rich with fragrance pot, and sensor two is set to the lower part of black luxuriant and rich with fragrance pot.The design of the utility model reflector facilitates circuit and more accurately judges state, reduces circuit required precision, being conducive to circuit reduces cost.
Description
Technical field
The utility model designs a kind of level sensing, especially relates to a kind of liquid level detection device of luxuriant and rich with fragrance pot of ink.
Background technique
Venous transfusion is one of common disease treatment method.Currently used perfusion tube material substantially uses transparent modeling
Material, venous transfusion pipeline itself does not have monitoring, alarming function, in infusion treatment, needs the manually touring observation infusion pipeline of timing
The medical fluid liquid level of black phenanthrene pot, to handle in time, avoid infusion pipeline blood back, for medical worker, work at the end of infusion
It measures very greatly, and is also a kind of burden for patient and its family members, for patient, influence patient's rest.Have
When because patient and family members are careless or fatigue or nurse job is busy fails to make an inspection tour in time, cannot find that in time liquid infusion terminates,
Blood back or air input blood vessel in perfusion tube are caused, adverse consequences is generated.Therefore, it is necessary to additional infusion alarms, when defeated
At the end of liquid is fast, infusion alarm generates alarm signal, reminds patient and family members or medical staff.
The main Types of existing liquid level detection device have the different types such as weight measurement, capacitive sensing, optoelectronic induction.Have
Type structure it is complicated, higher cost is more using step, and operating process is loaded down with trivial details；Type be for infusion bag itself carry out
Design innovation can not be applicable in all types of infusion bags, and practicability is not high, trigger the sensor of alarm signal in induction region
Inside incuded, but sensor must be inserted directly into infusion bottle and carry out using may pollute medical fluid.
So how to design easy to operate, the higher medical infusion alarm of accuracy of one kind or medical infusion alarm
System, becoming us will currently solve the problems, such as.
Chinese patent application publication No. CN 102284105A, a kind of entitled infusion alarm, the disclosure of the invention
It is a kind of using level sensing and single-chip microcontroller as the infusion alarm system of core, including power module, photoelectric sensor, compares
Device, single-chip microcontroller, LED light, audible alarm unit and executing agency；Wherein, it is detected by photoelectric sensor (photoelectric interrupter)
Perfusion tube liquid, and infusion alarm system is controlled by single-chip microcontroller；Photoelectric sensor is a photoelectric interrupter, defeated for detecting
Liquid pipe liquid；Comparator is a voltage comparator；When perfusion tube has liquid, the phototriode of photoelectric sensor receive compared with
The strong infrared light issued by infrared diode, the electric current for flowing through phototriode circuit is larger, thus voltage comparator is negative
Voltage reduces, and exports high level, and alarm does not do any movement, and infusion continues；When infusion draws to an end, i.e., perfusion tube does not have
When having liquid, the phototriode of photoelectric sensor receives the weaker infrared light issued by infrared diode, flows through photosensitive
The electric current of transistor circuit is smaller, and electric current changes significantly, thus the negative voltage of voltage comparator increases, and exports low level.
But there is situation to be being entirely liquid in black luxuriant and rich with fragrance pot, illustrate that failure occurs in infusion, detection perfusion tube liquid is also infused simultaneously
Pipe has liquid, is equally also required to notify medical staff, but infusion alarm cannot alarm.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the utility model provides one kind at three kinds in different conditions
Lower Jimo phenanthrene pot does not have liquid, partly fills detection device under state and hydraulically full.
The technical solution of the utility model is:
A kind of reflective liquid level detection device of the luxuriant and rich with fragrance pot of ink, including an ink luxuriant and rich with fragrance pot, two sensors, conversion circuits and compare
Circuit；The sensor is made of a RF transmitter, infrared absorber and two light pipes；It is RF transmitter, red
Outer absorber is respectively placed in the light pipe of the two sides on ink luxuriant and rich with fragrance pot same level face；
Sensor one is set to the top of the luxuriant and rich with fragrance pot of the ink, and sensor two is set to the lower part of the luxuriant and rich with fragrance pot of the ink,
Light pipe on RF transmitter is by ink luxuriant and rich with fragrance pot one end to having a reflector one；
Light pipe on infrared absorber is equipped with a reflector two by ink luxuriant and rich with fragrance pot one end upwards；
It is same level position on reflector one and the infrared absorber；
It is same level position on reflector two and the RF transmitter；
The input terminal and output end of sensor are respectively equipped with conversion circuit；
Conversion circuit be used for after the converted circuit of sensor 1 in endpoint e output voltage Ve1, then the converted electricity of sensor 2
In endpoint e output voltage Ve2 behind road；
The output voltage Vout=Ve2-Ve1 of the output end of comparison circuit；
When sensor one is with two output voltage of sensor or same or similar electric current, illustrate that the luxuriant and rich with fragrance pot of the ink of perfusion tube exists
Two kinds of situations: one is being all air in black luxuriant and rich with fragrance pot, this illustrates that infusion has been completed；
Another situation is that being entirely liquid in ink phenanthrene pot, illustrate that failure occurs in infusion；
When sensor one and two output voltage of sensor or significantly different electric current, there are two kinds of situations:
The first output voltage for being sensor one or electric current are significantly less than the output electric current of sensor two, illustrate sensor
It breaks down；
Second situation is the output voltage of sensor one or electric current is significantly greater than the output electric current of sensor two, illustrates ink
There are medical fluids in luxuriant and rich with fragrance pot, and that full of the luxuriant and rich with fragrance pot of ink, such situation does not belong to normal infusion state.
Further, above-mentioned RF transmitter, infrared absorber are respectively a LED light emitting diode D1 and a light
Quick triode D2.
Further, above-mentioned conversion circuit include power supply, LED current-limiting resistance R1 and a resistance (R2) and capacitor (C1) simultaneously
Join circuit.
A kind of warning device of the reflective liquid level of the luxuriant and rich with fragrance pot of ink, liquid level detection device further includes an execution circuit, works as sensing
When output electric current (output voltage) > sensor two output electric current (voltage) of device one, do not need to alarm, at this time Vout > 0, bee
Ring device does not work；When output electric current (output voltage)≤sensor two output electric current (voltage) of sensor one, Vout≤
0, buzzer is started to work.
Further, above-mentioned execution circuit is two resistance and two triodes, the base stage b connection resistance R7 of triode D5
One end, the base stage b, D5 of the collector C connection D6 of D5 emitter e ground connection, the hair of collector c connection the power supply VCC, D6 of D6
One end of emitter-base bandgap grading e connection buzzer, the both ends of resistance R8 are separately connected the collector C of the power supply VCC and D5.
In general, the utility model the above technical solutions conceived by the present invention are compared with the prior art,
Technical principle are as follows: whether the effect of sensor is in measurement propagation path of light comprising liquid；The decaying that light is propagated in water
Rate is greater than the attenuation rate that light is propagated in air, and when light is infrared ray, the comparison (or differentiation) of this attenuation effect is more
Obviously.
When sensor one is same or similar with the output electric current of sensor two, illustrate that there are two kinds of feelings for the luxuriant and rich with fragrance pot of the ink of perfusion tube
Condition, one is being all air in black luxuriant and rich with fragrance pot, this illustrates that infusion has been completed, and needs to export alarm signal, notifies medical staff；Separately
It is entirely liquid that a kind of situation, which is in black luxuriant and rich with fragrance pot, illustrates that failure occurs in infusion, is equally also required to notify medical staff.
When sensor one and the significantly different output electric current of sensor two, there are two kinds of situations.The first is sensor one
Output electric current be significantly less than the output electric current of sensor two, illustrate that sensor breaks down, need to export alarm signal, carry out
Maintenance；Second situation is that the output electric current of sensor 1 is significantly greater than the output electric current of sensor 2, illustrates exist in black luxuriant and rich with fragrance pot
Medical fluid, and that full of the luxuriant and rich with fragrance pot of ink, such situation does not belong to normal infusion state.
In conclusion when output electric current (output voltage) > sensor two output electric current (voltage) of only sensor one,
It does not need to alarm, other situations are required to alarm.
The effect of reflector: light neutralizes in air the ratio of the decaying of the light after repeatedly refraction at water (medical fluid) respectively
Value, it is identical as the ratio that single is propagated, but the attenuation value that repeatedly attenuation value of light can be propagated than single after refraction subtracts
It is few very much, the absolute value variation of the difference of the attenuation value of the light after repeatedly refraction is neutralized in air at water (medical fluid) respectively
It is bigger, facilitate circuit and more accurately judge state, reduces circuit required precision, being conducive to circuit reduces cost.
Detailed description of the invention
Fig. 1 is the schematic diagram of the reflective liquid level detection device of the luxuriant and rich with fragrance pot of ink of the utility model；
Fig. 2 is the sensor schematic of the reflective liquid level detection device of the luxuriant and rich with fragrance pot of ink of the utility model；
Fig. 3 is the conversion circuit schematic diagram of the utility model；
Fig. 4 is the comparison circuit schematic diagram of the utility model；
Fig. 5 is the warning circuit schematic diagram of the utility model；
Fig. 6 is the alarm flow schematic diagram of the reflective liquid level detection device of the luxuriant and rich with fragrance pot of ink of the utility model；
Fig. 7 is the warning device general illustration of the reflective liquid level detection device of the luxuriant and rich with fragrance pot of ink of the utility model；
The wherein luxuriant and rich with fragrance pot of 1- ink；2- sensor；3- conversion circuit；
21-LED light emitting diode D1；22- phototriode D2；23- light pipe；24- reflector；
Short arrow indicates infrared ray direction in Fig. 1；The long arrow of black phenanthrene pot indicates infrared ray direction in the luxuriant and rich with fragrance pot of ink.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.In addition, institute in the various embodiments of the present invention described below
The technical characteristic being related to can be combined with each other as long as they do not conflict with each other.
Referring to Fig. 1, Fig. 2, a kind of reflective liquid level detection device of the luxuriant and rich with fragrance pot of ink, by the luxuriant and rich with fragrance pot 1 of an ink, two 2 structures of sensor
At；Wherein one group of sensor (sensor one) is placed in the lower part of black luxuriant and rich with fragrance pot 1, another (sensor two) is placed under black luxuriant and rich with fragrance pot 1
Portion.
The structure of sensor one and sensor two is illustrated in fig. 1 shown below, and each pair of sensor includes a LED light emitting diode
D1, a phototriode D2, two light pipes 23；Light pipe 23 is opaque tubular structure, can be using such as opaque modeling
The materials such as expects pipe.
The structure of phototriode and common triode is similar；Be a difference in that phototriode must have one to light
Sensitive PN junction generally uses collector junction as light knot, therefore, phototriode is substantially that one kind is equivalent to as photosurface
The common triode of photodiode is connected between base stage and collector.Phototriode and general semiconductor triode one
Sample is using the transistor made of semiconductor fabrication process with NPN or positive-negative-positive structure.It in structure with semiconductor three
Pole pipe is similar, its extraction electrode usually only two, also there are three.For the requirement for adapting to photoelectric conversion, its base area face
Product is made larger, and emitter region area is made smaller, and incident light is mainly absorbed by base area.As photodiode, the core of pipe
Piece is installed in in glass lens Can, and when light irradiation, rays pass through lens cover is on chip.When having
When the PN junction of light sensitive characteristic is by light radiation, photoelectric current is formed, resulting photogenerated current enters emitter by base stage, thus
It obtains one in collector loop and is exaggerated to be equivalent to β times of signal code.
LED light emitting diode is placed in light pipe, and the effect of this light pipe is the light for converging LED light emitting diode and issuing
Line；Phototriode D2 receives the light of D1, and generates output electric current corresponding with light intensity, the effect of light pipe be by
The light in other directions shelters from, and so that D2 is only received the light of D1 sending, to reduce the interference of ambient light.
Whether the effect of sensor is in measurement propagation path of light comprising liquid.The attenuation rate that light is propagated in water is greater than
The attenuation rate that light is propagated in air, when light is infrared ray, the comparison (or differentiation) of this attenuation effect is become apparent from.
When sensor one is same or similar with the output electric current of sensor two, illustrate that there are two kinds of feelings for the luxuriant and rich with fragrance pot of the ink of perfusion tube
Condition, one is being all air in black luxuriant and rich with fragrance pot, this illustrates that infusion has been completed, and needs to export alarm signal, notifies medical staff；Separately
It is entirely liquid that a kind of situation, which is in black luxuriant and rich with fragrance pot, illustrates that failure occurs in infusion, is equally also required to notify medical staff.
When sensor one and the significantly different output electric current of sensor two, there are two kinds of situations.The first is sensor one
Output electric current be significantly less than the output electric current of sensor two, illustrate that sensor breaks down, need to export alarm signal, carry out
Maintenance；Second situation is that the output electric current of sensor one is significantly greater than the output electric current of sensor two, illustrates to deposit in black luxuriant and rich with fragrance pot
In medical fluid, and that full of the luxuriant and rich with fragrance pot of ink, such situation does not belong to normal infusion state, output alarm signal is not needed.
In conclusion when output electric current (output voltage) > sensor two output electric current (voltage) of only sensor one,
It does not need to alarm, other situations are required to alarm.
The effect of reflector: light neutralizes in air the ratio of the decaying of the light after repeatedly refraction at water (medical fluid) respectively
Value, it is identical as the ratio that single is propagated, but the attenuation value that repeatedly attenuation value of light can be propagated than single after refraction subtracts
It is few very much, the absolute value variation of the difference of the attenuation value of the light after repeatedly refraction is neutralized in air at water (medical fluid) respectively
It is bigger, facilitate circuit and more accurately judge state, reduces circuit required precision, being conducive to circuit reduces cost.
For example: assuming that light intensity when LED is projected is 100
Numerical value after 5 refractions of numerical value decaying after single propagation light intensity decaying
Air 99 95
Water 90 50
Obviously, the quantity difference between 99 and 90, hence it is evident that greater than the quantity difference between 95 and 50.
Referring to Fig. 3, conversion circuit:
Since infusion is a slowly varying process, and the output voltage of sensor and electric current are a transients, can
It can be interfered by outside and false alarm, in order to reduce and eliminate false alarm, need using conversion circuit, by the transient of sensor
Be converted to a quasi-steady value.
Simple conversion circuit includes power supply, LED current-limiting resistance R1 and resistance (R2) capacitor (C1) parallel circuit, such as
Shown in the following figure.The capacitance of capacitor is generally bigger, such as tens microfarads, and specific value is determined by test.The output of conversion circuit
For endpoint e.Then in endpoint e output voltage Ve1 after the converted circuit of sensor 1, then in endpoint e after the converted circuit of sensor 2
Output voltage Ve2.
Referring to fig. 4, comparison circuit:
Using subtraction operational amplifier circuit, as shown below；In figure, Ve1 is the output voltage of endpoint, is the output electricity of endpoint
Pressure.Four resistance in the following figure are equal, i.e. R3=R4=R5=R6, then the output voltage Vout=of the Ausgang of comparison circuit
Ve2-Ve1。
Referring to Fig. 5, execution circuit:
Execution circuit can take various forms, and main purpose is to issue various signals, such as light, sound, remind and suffer from
Person and family members or medical staff.
In Fig. 5, conversion circuit execution circuit is two resistance and two triodes, the base stage b connection resistance of triode D5
One end of R7, the emitter e ground connection of the base stage b, D5 of the collector C connection D6 of D5, the collector c connection power supply VCC of D6, D6's
Emitter e connects one end of buzzer, and the both ends of resistance R8 are separately connected the collector C of power supply VCC and D5.
In figure, resistance R7 limits the base current of D5 within the allowable range, reduces power consumption, during resistance R8 limits D5 conducting
Triode electric current within the allowable range, reduce power consumption.
When output electric current (output voltage) > sensor two output electric current (voltage) of sensor one, do not need to alarm,
Vout > 0 at this time, triode D5 conducting, the base voltage of triode D6 are that zero, D6 is disconnected, and buzzer does not work；
When output electric current (output voltage)≤sensor two output electric current (voltage) of sensor one, Vout≤0,
D5 is disconnected, and D6 conducting, buzzer is started to work, and realizes the purpose of alarm.
Supplementary explanation:
VCC in all circuits is the same power supply；Ground connection in all circuits is the same ground connection.
It is as follows referring to Fig. 6 flow chart and Fig. 7 warning device general illustration overall system design figure.Including sensing
The functional modules such as device, conversion circuit, comparison circuit, execution circuit.
Sensor one and sensor two measure different location, and export electric current；Current output sensor passes through conversion circuit
Be converted to the positive voltage or no-voltage of logic circuit；The positive voltage or no-voltage of conversion circuit output are input in comparison circuit,
The logic circuit of comparison circuit completes corresponding movement by calculating output control model, control execution circuit.
Specifically, sensor one and sensor two measure different location, and export electric current；Current output sensor is by turning
Change the positive voltage or no-voltage that circuit conversion is logic circuit；It is electric that the positive voltage or no-voltage of conversion circuit output are input to comparison
Lu Zhong, the logic circuit of comparison circuit complete alarm or do not alarm corresponding by calculating output control model, control execution circuit
Movement.
Claims (5)
1. a kind of reflective liquid level detection device of the luxuriant and rich with fragrance pot of ink, including the luxuriant and rich with fragrance pot of an ink, two sensors, conversion circuit and comparison are electric
Road；The sensor is made of a RF transmitter, infrared absorber and two light pipes；The RF transmitter,
Infrared absorber is respectively placed in the light pipe of the two sides on ink luxuriant and rich with fragrance pot same level face；
It is characterized in that, sensor one is set to the top of the luxuriant and rich with fragrance pot of the ink, sensor two is set to the lower part of the luxuriant and rich with fragrance pot of the ink,
Light pipe on the RF transmitter is by ink luxuriant and rich with fragrance pot one end to having a reflector one；
Light pipe on the infrared absorber is equipped with a reflector two by ink luxuriant and rich with fragrance pot one end upwards；
It is same level position on the reflector one and the infrared absorber；
It is same level position on the reflector two and the RF transmitter；
The input terminal and output end of the sensor are respectively equipped with conversion circuit；
The conversion circuit be used for sensor after conversion circuit in endpoint e output voltage Ve1, then sensor two is converted
In endpoint e output voltage Ve2 after circuit；
Output voltage Vout=Ve2-Ve1 of the output end of the comparison circuit；
When the sensor one is with two output voltage of sensor or same or similar electric current, illustrate that the luxuriant and rich with fragrance pot of the ink of perfusion tube exists
Two kinds of situations: one is being all air in black luxuriant and rich with fragrance pot, this illustrates that infusion has been completed；
Another situation is that being entirely liquid in ink phenanthrene pot, illustrate that failure occurs in infusion；
When the sensor one and two output voltage of sensor or significantly different electric current, there are two kinds of situations:
The first output voltage for being sensor one or electric current are significantly less than the output electric current of sensor two, illustrate that sensor occurs
Failure；
Second situation is the output voltage of sensor one or electric current is significantly greater than the output electric current of sensor two, illustrates black luxuriant and rich with fragrance pot
In there are medical fluids, and that full of the luxuriant and rich with fragrance pot of ink, such situation does not belong to normal infusion state.
2. a kind of reflective liquid level detection device of the luxuriant and rich with fragrance pot of ink as described in claim 1, which is characterized in that the infrared ray transmitting
Device, infrared absorber are respectively a LED light emitting diode D1 and a phototriode D2.
3. reflective liquid level detection device as described in claim 1, which is characterized in that the conversion circuit includes power supply, LED limit
A leakage resistance R1 and resistance R2 and capacitor C1 parallel circuit.
4. a kind of liquid level detection alarmer including liquid level detection device described in claims 1 or 2 or 3, which is characterized in that
The liquid level detection device further includes an execution circuit, when the output electric current or output voltage > sensor two of sensor one
When exporting current or voltage, do not need to alarm, at this time Vout > 0, buzzer does not work；
When the output current or voltage of the output electric current of sensor one or output voltage≤sensor two, Vout≤0, buzzing
Device is started to work.
5. liquid level detection alarmer as claimed in claim 4, which is characterized in that the execution circuit is two resistance and two
A triode, one end of the base stage b connection resistance R7 of triode D5, the base stage b of the collector C connection D6 of D5, D5's
Emitter e ground connection, one end of the emitter e connection buzzer of collector c connection the power supply VCC, D6 of D6, resistance R8's
Both ends are separately connected the collector C of the power supply VCC and D5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920122508.7U CN209512987U (en) | 2019-01-24 | 2019-01-24 | A kind of reflective liquid level detection device and warning device of the luxuriant and rich with fragrance pot of ink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920122508.7U CN209512987U (en) | 2019-01-24 | 2019-01-24 | A kind of reflective liquid level detection device and warning device of the luxuriant and rich with fragrance pot of ink |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209512987U true CN209512987U (en) | 2019-10-18 |
Family
ID=68202227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920122508.7U Expired - Fee Related CN209512987U (en) | 2019-01-24 | 2019-01-24 | A kind of reflective liquid level detection device and warning device of the luxuriant and rich with fragrance pot of ink |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209512987U (en) |
-
2019
- 2019-01-24 CN CN201920122508.7U patent/CN209512987U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102284105A (en) | Infusion alarm device | |
| CN103691035B (en) | Medical intravenous infusion alarm | |
| CN203561404U (en) | Liquid level detection device of transfusion drip chamber | |
| CN102755673A (en) | Blood leakage monitoring system for blood purification | |
| CN103054589A (en) | Urine volume dynamic monitoring system and method | |
| CN100375986C (en) | Blood leakage monitor | |
| CN206892582U (en) | Low energy consumption auto-induction apparatus | |
| CN209400046U (en) | A kind of liquid level detection device of the luxuriant and rich with fragrance pot of ink | |
| CN109764938A (en) | A kind of reflective liquid level detection device of the luxuriant and rich with fragrance pot of ink | |
| CN203619997U (en) | Circuit capable of automatically detecting residual amount of liquid of transfusion device and alarming | |
| CN209512987U (en) | A kind of reflective liquid level detection device and warning device of the luxuriant and rich with fragrance pot of ink | |
| CN209400045U (en) | A kind of reflective biliquid level detecting apparatus for black luxuriant and rich with fragrance pot | |
| CN109764939A (en) | A kind of liquid level detection device and warning device of the luxuriant and rich with fragrance pot of ink | |
| CN209416456U (en) | A kind of medical micrometeor injection intelligence calibration system | |
| CN109764940A (en) | A kind of biliquid level detecting apparatus for black luxuriant and rich with fragrance pot | |
| CN109764936A (en) | A kind of double liquid level alarm method of the luxuriant and rich with fragrance pot of ink | |
| CN209400044U (en) | A kind of biliquid level detecting apparatus and warning device for black luxuriant and rich with fragrance pot | |
| CN109764941A (en) | A kind of liquid-level detecting method of the luxuriant and rich with fragrance pot of ink | |
| CN203154459U (en) | Portable intravenous infusion controller | |
| CN109764937A (en) | A kind of reflective biliquid level detecting apparatus and warning device for black luxuriant and rich with fragrance pot | |
| Tilak et al. | IoT based smart saline bottle for healthcare | |
| CN205055053U (en) | Infusion bubble detection circuit | |
| CN201692414U (en) | Multifunctional vein transfusion monitor | |
| CN108096665B (en) | Equipment is nursed in the infusion for sentencing survey based on adaptive more redundancies | |
| CN201701577U (en) | Intelligent transfusion alarming system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191018 Termination date: 20220124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |