CN109999271A - A kind of infusion alarm - Google Patents
A kind of infusion alarm Download PDFInfo
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- CN109999271A CN109999271A CN201910358278.9A CN201910358278A CN109999271A CN 109999271 A CN109999271 A CN 109999271A CN 201910358278 A CN201910358278 A CN 201910358278A CN 109999271 A CN109999271 A CN 109999271A
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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
- A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
-
- 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
- A61M5/1689—Drip counters
-
- 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)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a kind of infusion alarms, comprising: the first optical transmitter module is set to the left/right top outside luxuriant Fei Shi dropper, for generating the directional illuminant of specific wavelength；First light collection module, including at least two photo resistance, it is respectively arranged at dropper and is set to different height relative to first optical transmitter module side and lower than first optical transmitter module, compare output module for perceiving the light conditions of the first optical transmitter module to generate the signal of reflection liquid level state indirectly and export to first；First compares output module, for generating reference voltage and being compared with the signal of the first light collection module output, exports alarm control signal according to comparison result；First alarm module, output for comparing output module first generates sound-light alarm under controlling, the present invention is reacted by the variation that floats up and down to liquid level in dropper in infusion process, and prompts care provider to handle in the way of buzzer or flash of light, improves infusion safety.
Description
Technical field
The present invention relates to technical field of medical equipment, fill more particularly to a kind of infusion alarming of automatic monitoring infusion process
It sets.
Background technique
Infusion apparatus is a kind of common medical instrument of hospital, and main function is by the medical fluid conveying in infusion bottle or infusion bag
Into venous patient, in infusion apparatus in use, generally requiring to observe transfusion condition constantly, pulled out when infusion-completed by medical staff
The operation such as needle, dressing.
Currently, each hospital is all often that families of patients is required to have a relatives or shield in patient's garter infusion process
Reason personnel monitoring, pays close attention to the process of infusion, and notifies situation at once nurse, because the infusion process time is long, one
A little nursing stafves are since experience is insufficient or distraction, and often will cause nursing fault: light for example finds syringe needle not in time
It throws away and causes the waste of medical fluid or medical fluid to drip off to shut down not in time and cause venous backflow in vitro；Weight due to hanging sky when
Between it is too long, air enter in vivo, cause air embolism, or syringe needle deflects away from vein for some reason, injecting liquid drug enters muscle
Accumulation, discovery is handled not in time, is caused local muscle swelling, is increased the pain of patient.
Therefore, it is really necessary to propose a kind of technological means, to solve the above problems.
Summary of the invention
In order to overcome the deficiencies of the above existing technologies, purpose of the present invention is to provide a kind of infusion alarm, with
By to the variation that floats up and down of liquid level is reacted in cyclopentadienyl Fei Shi dropper in infusion process, in the way of buzzer or flash of light
Prompt care provider is handled, and improves infusion safety.
In order to achieve the above object, the present invention proposes a kind of infusion alarm, comprising:
First optical transmitter module is set to the left/right top outside luxuriant Fei Shi dropper, for generating the orientation of specific wavelength
Illumination；
First light collection module includes at least two photo resistance, is respectively arranged at the cyclopentadienyl Fei Shi dropper relative to institute
It states the first optical transmitter module side and is set to different height lower than first optical transmitter module, for perceiving the first light hair
The light conditions of module are penetrated to generate the signal of reflection liquid level state indirectly and export to first and compare output module；
First compares output module, the letter for generating the reference voltage compared and with the first light collection module output
It number is compared, alarm control signal is exported according to comparison result；
First alarm module, the output for comparing output module described first generate sound-light alarm under controlling.
Preferably, first optical transmitter module includes filter capacitor C1, the first transmitting LED light D1 and its first current limliting electricity
R2 is hindered, power supply VCC is connected to the anode of one end of the filter capacitor C1, the first transmitting LED light D1, the first transmitting LED
One end for being connected to the first current-limiting resistance R2 of the anode of D1, the first current-limiting resistance R2 are another with the filter capacitor C1's
End ground connection.
Preferably, the first light collection module includes divider resistance R1, the first photo resistance RO1 and the second photo resistance
One end of RO2, the divider resistance R1 connect power supply VCC, and the other end of the divider resistance R1 is connected to described first and compares
One end of output module, the first photo resistance RO1 and the second photo resistance RO2, the first photo resistance RO1 and second are photosensitive
The other end of resistance RO2 is grounded.
Preferably, the infusion alarm is designed to a visual package assembly being flexibly set with cyclopentadienyl Fei Shi dropper, described
First optical transmitter module is set to the left/right top of the visual package assembly, and the light emitting direction of its first transmitting LED light D1 with
The cyclopentadienyl Fei Shi dropper diagonal line is in the same direction, and the first photo resistance RO1 is set to that corresponding with the optical transmitter module this is visual
The right/left lower part of package assembly, setting position be the optical transmitter module light when unobstructed can direct projection position, it is described
Second photo resistance RO2 is set to the light of optical transmitter module transmitting when the corresponding cyclopentadienyl Fei Shi dropper liquid level increases by drop
Pipe and interior tank body reflect the position of corresponding refraction light.
Preferably, described first compares output module including the first potentiometer Vr1, first comparator CMP1 and loads electricity
R3 is hindered, one end of the first potentiometer Vr1 connect power supply VCC, first electricity with the anode of the first comparator CMP1
The variable resistance end of position device Vr1 is connected to the inverting input terminal of the first comparator CMP1, the first comparator CMP1's
Non-inverting input terminal connects the first light collection module, the output end connection of the first comparator CMP1 the first alarm mould
Block, the one end the load resistance R3 connect power supply VCC, and the other end connects the output end of the first comparator CMP1.
Preferably, first alarm module includes light warning module D2, the second current-limiting resistance R4, sound alarm module
B1 and third current-limiting resistance R5, the light warning module D2 is connect with one end of sound alarm module B1 with power supply VCC, another
End connects the output end of the first comparator CMP1 by the second current-limiting resistance R4, third current-limiting resistance R5 respectively.
Preferably, the infusion alarm further includes dripping speed monitoring alarm module, for being perceived using light collection module
The light conditions of optical transmitter module carry out drop speed according to monitoring result to monitor speed that the medical fluid in luxuriant Fei Shi dropper drips
Cross slow alarm.
Preferably, the drop speed monitoring alarm module includes:
Second optical transmitter module is mounted on above luxuriant Fei Shi minim pipette with the second light collection module symmetry, corresponds to liquid
The position of drippage, second optical transmitter module are used to generate the directional illuminant of specific wavelength；
Second light collection module, for perceiving the light conditions of second optical transmitter module to generate reflection drop speed indirectly
The signal of state, which is exported to second, compares output module；
Second compares output module, the letter for generating the reference voltage compared and with the second light collection module output
It number is compared, output comparison result to timing module；
Timing module, for using delayer, the output starting timing or recovery of comparing output module according to described second
Original state, and when timing time reaches the preset alarm time, the second alarm module of starting is alarmed；
Second alarm module, for carrying out sound-light alarm under the driving of the timing module.
Preferably, the second light collection module includes divider resistance R6, filter capacitor C3 and third photo resistance
RO3, the one end the divider resistance R6 connect power supply VCC, and the other end is connected with the third photo resistance RO3 with filter capacitor C3
And it is connected to described second and compares output module, the other end ground connection of the third photo resistance RO3 and filter capacitor C3.
Preferably, described second compare output module include third potentiometer Vr3, third comparator CMP3 and load electricity
R8 is hindered, the third potentiometer Vr3 connect power supply VCC, the third potentiometer Vr3 with the power positive end of third comparator CMP3
Variable resistance end be connected to the non-inverting input terminal of the third comparator CMP3, the anti-phase input of the third comparator CMP3
End connects the second light collection module, the power supply of the other end of the third potentiometer Vr3 and the third comparator CMP3
Negativing ending grounding, the output of the third comparator CMP3 terminate the input terminal VI of the delayer, and the load resistance R8 connects
Between power supply VCC and the output end of the third comparator CMP3.
Compared with prior art, a kind of infusion alarm of the present invention can be with by the way that infusion alarm is made one
The visual package assembly that luxuriant Fei Shi dropper is flexibly set with, work when, which is relied on, to be lifted on the outside of luxuriant Fei Shi dropper, utilizes light
Transmitting module reacts to the variation that floats up and down in luxuriant Fei Shi intraluminal fluid face with light collection module, and passes through buzzer or flash of light
Mode prompt care provider to deal with, realize improve infusion safety purpose, meanwhile, the infusion alarm of the present invention
The drop speed of dropping liquid is monitored in can also managing to luxuriant Fei Shi, to give warning note when drop speed is excessively slow.
Detailed description of the invention
Fig. 1 is the schematic diagram of cyclopentadienyl Fei Shi dropper applied by the present invention
Fig. 2 is the reflection of light applied by the present invention and refraction schematic diagram；
Fig. 3 is a kind of circuit structure diagram of infusion alarm of the present invention；
Fig. 4 is the scheme of installation of infusion alarm in the specific embodiment of the invention；
Fig. 5-1, Fig. 5-2, Fig. 5-3 are respectively fluid change and illumination relation schematic diagram in the specific embodiment of the invention；
Fig. 6 is the circuit diagram of drop speed monitoring alarm module in the specific embodiment of the invention；
Fig. 7 is the scheme of installation of drop speed monitoring alarm module in the specific embodiment of the invention.
Specific embodiment
Below by way of specific specific example and embodiments of the present invention are described with reference to the drawings, those skilled in the art can
Understand further advantage and effect of the invention easily by content disclosed in the present specification.The present invention can also pass through other differences
Specific example implemented or applied, details in this specification can also be based on different perspectives and applications, without departing substantially from
Various modifications and change are carried out under spirit of the invention.
Before explaining the present invention, first principle according to the present invention is slightly illustrated:
1, transfusion state and liquid relation of plane in cyclopentadienyl Fei Shi dropper
1-1: the process of normal infusion is to pass through 3 connecting needle of transfusion catheter to patient fluid infusion by the medical fluid transfusion bottle 1 hung
, transfusion catheter top can be connected with the observation bottle 2 for being " luxuriant Fei Shi dropper ", as shown in Figure 1, when normal infusion
It waits, liquid level can be adjusted by nurse in the center of bottle, this liquid level can be relatively stable or floats up and down in a limited degree.
1-2: when the syringe needle for lunging muscle can not find quasi- vein, or tube wall muscle is skidded off from vein and does not absorb excessive injection
The medical fluid come in, local swelling simultaneously form certain back pressure, and liquid droping speed is slack-off in luxuriant Fei Shi dropper, in some cases this liquid level
It can also increase.
1-3: when syringe needle is thrown away from patient's body, medical fluid can flow away rapidly, the liquid level decline in luxuriant Fei Shi dropper, until arriving
Bottom.
1-4: when medical fluid drips off gradually in transfusion bottle, dripping and be also gradually reduced therewith into the medical fluid in luxuriant Fei Shi dropper, liquid level meeting
Gradually decline, until disappearing.
2, direction of the light when different medium is propagated
2-1: the law of light
It can occur to reflect when light is slanted through liquid from air and reflect, to change the side of the straightline propagation of light
To as shown in Figure 2.
2-2: the law of refraction of light
1, refracted light and incident ray and normal be in the same plane.
2, refracted light and incident ray separation normal two sides.
3, when light is slanted through in optically denser medium from optically thinner medium, refraction angle is less than incidence angle.
4, when light is slanted through optically thinner medium from optically denser medium, refraction angle is greater than incidence angle.
5, when incidence angle increases, refraction angle is also with increase.
6, when the vertical directive dielectric surface of light, the direction of propagation does not change.
3, characteristic of photoresistance value
Photo resistance be with vulcanization every or selenizing particular resistor made of equal semiconductor materials, its working principle is that base
In inner photoeffect, the stronger resistance value of illumination is lower, and light resistance value can be less than 1k ohm hereinafter, photo resistance is very quick to light
Sense is in high-impedance state in unglazed treatment, and dark resistance value is generally up to 1.5M ohm.
Fig. 3 is a kind of circuit structure diagram of infusion alarm of the present invention.As shown in figure 3, a kind of infusion alarming of the present invention
Device, comprising: the first optical transmitter module 110, the first light collection module 120, first compare output module 130 and the first alarm mould
Block 140 forms.
Wherein, the first optical transmitter module 110 is by filter capacitor C1, transmitting LED light D1 and the first current-limiting resistance R2, for producing
The directional illuminant of raw specific wavelength, in the specific embodiment of the invention, the infusion alarm is made into one can be non-with cyclopentadienyl
The visual package assembly that family name's dropper is flexibly set with, the optical transmitter module 110 are set to the left/right top of the visual package assembly, such as
Setting and cyclopentadienyl Fei Shi dropper diagonal line optical transmitter module 110 in the same direction in the upper right corner of the visual package assembly；First light collection mould
Block 120 is made of divider resistance R1, the first photo resistance RO1 and the second photo resistance RO2, for perceiving optical transmitter module 110
Light conditions to reflect liquid level state indirectly and analog signal be connected to the non-inverting input terminal of comparator, the first light collection mould
Block 120 is set to cyclopentadienyl Fei Shi dropper relative to 110 side of the first optical transmitter module and lower than the first optical transmitter module
110, in the specific embodiment of the invention, the first photo resistance RO1 is set to the visual housing opposite with the optical transmitter module
The right/left lower part of part, setting position with the light of the optical transmitter module penetrate dropper empty bottle when can direct projection be preferred, second light
Quick resistance RO2 is set to cyclopentadienyl Fei Shi dropper liquid level and increases the light of the transmitting of light emission module 110 by dropper and interior tank body
Reflect the position of corresponding refraction light.
First compares output module 130 is made of the first potentiometer Vr1, first comparator CMP1 and load resistance R3, uses
In generating the reference voltage that compares and the analog signal exported with light collection module 120 is compared output digit signals；First
Alarm module 140 is by light warning module (such as flash lamp) D2, the second current-limiting resistance R4, sound alarm module (such as buzzer) B1
It is formed with third current-limiting resistance R5, the output for comparing output module 130 first generates sound-light alarm under controlling.
Specifically, power supply VCC be connected to one end of filter capacitor C1, emit the anode of LED light D1, divider resistance R1 one
End, one end of the first potentiometer Vr1, the power positive end of first comparator CMP1, one end of load resistance R3, flash lamp D2 sun
The anode of pole and buzzer B1, the other end of divider resistance R1 are connected to the non-inverting input terminal of first comparator CMP1, the first light
One end of quick resistance RO1 and the second photo resistance RO2 emit be connected to the first current-limiting resistance R2 one of the anode of LED D1
End, the cathode of flash lamp D2 are connected to one end of the second current-limiting resistance R4, and the negative terminal of buzzer B1 is connected to third current-limiting resistance
The other end of one end of R5, the other end of load resistance R3, the other end of the second current-limiting resistance R4 and third current-limiting resistance R5 connects
It is connected to the output end of first comparator CMP1, the reverse phase that the variable resistance end of the first potentiometer Vr1 is connected to comparator CMP1 is defeated
Enter end, the other end of the first potentiometer Vr1, the other end of the first photo resistance RO1, the other end of the second photo resistance RO2, the
The power supply negative terminal of the other end of one current-limiting resistance R2, the other end of filter capacitor C1 and first comparator CMP1 is grounded.
Illustrate the working principle of the invention below in conjunction with a specific embodiment.In the specific embodiment of the invention, such as
Shown in Fig. 4, which is made the visual package assembly that can be flexibly set with luxuriant Fei Shi dropper, visual outer at this
The upper right corner setting of external member first optical transmitter module in the same direction with 2 diagonal line of cyclopentadienyl Fei Shi dropper (including filter capacitor C1, transmitting
LED light D1 and its first current-limiting resistance R2), in the lower left corner of corresponding visual package assembly, one photo resistance inductive head is set
(the first photo resistance RO1), and on the photo resistance inductive head, emit LED light D1 when corresponding to cyclopentadienyl Fei Shi dropper drop
Another photo resistance inductive head (the second photo resistance RO2) is arranged in the diffracting position of the light of sending again, then this two are incuded
Head is connected to photo resistance component 1 (including comparing output module 130 and alarm module 140), is set in the photo resistance membrane module 1
It is equipped with power supply, resistance, IC chip, adjustable potentiometer, flash lamp, buzzer etc., forms an alarm circuit system, it is of the invention
Working principle is as follows:
1, when normal infusion, the middle position that liquid level is in luxuriant Fei Shi dropper is floated up and down, and transmitting LED light D1 is penetrated
Light out penetrates cyclopentadienyl Fei Shi dropper, and directive liquid level, reflection and refraction, the top of reflection light directive pipe occur for light, and roll over
The light directive bottom of the tube penetrated, the setting straight line of the light and lamp of reflection and refraction, which will form certain angle, can't touch alarm
Device (Fig. 5-1).
2, when liquid level rises, and is higher than transmitting LED light D1 irradiated site, luxuriant Fei Shi dropper side wall becomes interface, transmitting
Reflection and refraction occur for the light that LED light D1 is projected, and the light directive of refraction is set to photo resistance inductive head (second light on top
Quick resistance RO2)), the resistance value of second photo resistance becomes smaller, and the non-inverting input terminal voltage of first comparator CMP1 reduces, and first
Comparator CMP1 exports low level, and the first alarm module 140 alarms (Fig. 5-2).
3, when liquid level declines, and is lower than the first photo resistance RO1 horizontal plane, the light that transmitting LED light D1 is projected is penetrated
Luxuriant Fei Shi dropper is emitted directly toward the photo resistance inductive head (the first photo resistance RO1) of lower part setting, first photo resistance RO1
Resistance value become smaller, the non-inverting input terminal voltage of first comparator CMP1 reduces, and first comparator CMP1 exports low level, the first report
Alert module 140 alarms (Fig. 5-3).
In infusion process, relevant human factor often changes the speed of dropping liquid, and catheter blockage lacks liquid, transfusion bottle too
Low, patient's fault, the hand lift get Tai Gao being injected, perfusion tube is pressed, syringe needle is thrown away, or does not lunge vein, or even suffer from
The emotional problem of person can all influence the speed of dropping liquid, usually will cause liquid droping speed and slow down, and dropping liquid can reduce drug slowly excessively
Curative effect, and spend patient's more times, it is necessary to timely correction.Therefore, the infusion alarm of the present invention further includes drop
Speed monitoring alarm module, for the medicine in the light conditions monitoring cyclopentadienyl Fei Shi dropper using light collection module perception optical transmitter module
Speed under drop carries out the excessively slow alarm of drop speed according to monitoring result.
As shown in fig. 6, the drop speed monitoring alarm module 20 includes the second optical transmitter module 210, the second light collection module
220, second compares output module 230, timing module 240 and the second alarm module 250, second optical transmitter module 210
By filter capacitor C2, transmitting LED light D3 and its 4th current-limiting resistance R7, for generating the directional illuminant of specific wavelength；Second light
Acquisition module 220 is made of divider resistance R6, filter capacitor C3 and third photo resistance RO3, for perceive light conditions with
It is reversed to reflect the non-inverting input terminal dripped fast state and analog signal is connected to comparator, second optical transmitter module 210 and the
Two light collection modules 220 are symmetrically mounted on above luxuriant Fei Shi minim pipette, corresponding to the position of liquid drippage；Second compares output mould
Block 230 is made of third potentiometer Vr3, third comparator CMP3 and load resistance R8, for generating the benchmark electricity of comparator
It presses and is compared output digit signals with the analog signal of the second light collection module 220 output；Timing module 240, using one
Delayer DL1, the output for comparing output module 230 according to second start timing or restPose, and when timing
Between reach the preset alarm time when, starting the second alarm module 250 alarm；Second alarm module 250 by relay RL1,
Flash lamp D5 and buzzer B3 composition, for carrying out sound-light alarm under the driving of timing module 240, preferably, second compares
Output module 230 may also include indication LED lamp D4 and the 5th current-limiting resistance R9, to boot up power supply signal output instruction.
Specifically, power supply VCC be connected to one end of filter capacitor C2, emit the anode of LED light D3, divider resistance R6 one
End, one end of third potentiometer Vr3, the power positive end of third comparator CMP3, one end of load resistance R8, booting indication LED
The anode of lamp D4 and the power positive end of delayer DL1, the other end of divider resistance R6 are connected to the reverse phase of third comparator CMP3
Input terminal, one end of third photo resistance RO3 and filter capacitor C3 one end, the cathode for emitting LED light D3 is connected to the 4th
The cathode of one end of current-limiting resistance R7, booting indication LED lamp D4 is connected to one end of the 5th current-limiting resistance R9, load resistance R8's
The input terminal VI of the other end, the other end of the 5th current-limiting resistance R9 and delayer DL1 is connected to the output end of comparator CMP3, prolongs
When device DL1 output end VO be connected to the control anode of relay RL1, the output end of relay RL1 is connected to buzzer B3's
The variable resistance end of the anode of anode and flash lamp D5, third potentiometer Vr3 is connected to the homophase input of third comparator CMP3
End, the other end of third potentiometer Vr3, the other end of third photo resistance RO3, the other end of the 4th current-limiting resistance R7, filtering
The other end of capacitor C2-C3, the negative terminal of buzzer B3, the cathode of flash lamp D5, the control negative terminal of relay RL1 and third compare
The power supply negative terminal of device CMP3 and delayer DL1 ground connection.In the specific embodiment of the invention, delayer DL1 can be used NE555 and prolong
When device, be to be made of NE555 chip and the capacitor of periphery, resistance, there is Time delay startup function, but the present invention is not with this
It is limited.
Illustrate the principle for dripping speed monitoring alarm module below in conjunction with Fig. 7.In embodiment, on luxuriant Fei Shi minim pipette
The positional symmetry of side, corresponding liquid drippage installs second optical transmitter module 210 and the second light collection module 220, then connects
It is connected to second and compares output module 230, timing module 240 and the second alarm module 250 and (be set to photo resistance component 1
In), by the delayer in timing module 240, the timing alarm time is preset, when first liquid pearl cutting transmitting LED light
When the light that D3 is projected, third photo resistance RO3 induced electricity resistance value becomes larger, which exports high level with crawl
Mode start-up study device, delayer DL1 are activated and start timing, reach the time of predetermined set when the time, delayer DL1 is then
The buzzer or LED flash that the second alarm module 250 can be connected are alarmed, but when having not timed out, second liquid pearl is
When dripping and cutting off the light that transmitting LED light D3 is projected, third photo resistance RO3 induced electricity resistance value becomes larger, comparator CMP3's
Inverting input terminal voltage reduces, and the non-inverting input terminal voltage of comparator CMP3 is higher than inverting input terminal voltage, and comparator CMP3 is again
Secondary output high level restPoses after delayer DL1 receives signal, and reclocking, at this time then will not automatic alarm,
The setting of delayer reclocking can all be promoted using each tear drop in this way, achieve the purpose that time-out alarm.
It should be noted that although photo resistance is arranged using the refracted light of corresponding transmitting LED light in the embodiment of the present invention
To monitor liquid level, but it is to be understood that the reflection light setting photo resistance that also can use transmitting LED is slightly varied with accurate
Liquid level is monitored, invention is not limited thereto.
In conclusion a kind of infusion alarm of the present invention can be with luxuriant Fei Shi by the way that infusion alarm is made one
The visual package assembly that dropper is flexibly set with, work when, which is relied on, to be lifted on the outside of luxuriant Fei Shi dropper, utilizes light emitting mould
Block reacts to the variation that floats up and down in luxuriant Fei Shi intraluminal fluid face with light collection module, and by way of buzzer or flash of light
Prompt care provider deals with, and realizes the purpose for improving infusion safety, meanwhile, the infusion alarm of the present invention can be with
The luxuriant Fei Shi drop speed for managing interior dropping liquid is monitored, to give warning note when drop speed is excessively slow.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.Any
Without departing from the spirit and scope of the present invention, modifications and changes are made to the above embodiments by field technical staff.Therefore,
The scope of the present invention, should be as listed in the claims.
Claims (10)
1. a kind of infusion alarm, comprising:
First optical transmitter module is set to the left/right top outside luxuriant Fei Shi dropper, for generating the directional light of specific wavelength
According to；
First light collection module includes at least two photo resistance, is respectively arranged at the cyclopentadienyl Fei Shi dropper relative to described the
One optical transmitter module side and lower than first optical transmitter module be set to different height, for perceiving the first light emitting mould
The light conditions of block compare output module to generate the signal of reflection liquid level state indirectly and export to first；
First compares output module, for generate the reference voltage compared and with the first light collection module output signal into
Row compares, and exports alarm control signal according to comparison result；
First alarm module, the output for comparing output module described first generate sound-light alarm under controlling.
2. a kind of infusion alarm as described in claim 1, it is characterised in that: first optical transmitter module includes filtering
Capacitor C1, the first transmitting LED light D1 and its first current-limiting resistance R2, power supply VCC are connected to one end of the filter capacitor C1, the
The anode of one transmitting LED light D1, one end for being connected to the first current-limiting resistance R2 of the anode of the first transmitting LED D1 are described
The other end of the first current-limiting resistance R2 and filter capacitor C1 is grounded.
3. a kind of infusion alarm as claimed in claim 2, it is characterised in that: the first light collection module includes partial pressure
One end of resistance R1, the first photo resistance RO1 and the second photo resistance RO2, the divider resistance R1 connect power supply VCC, described
The other end of divider resistance R1 is connected to described first and compares output module, the first photo resistance RO1 and the second photo resistance RO2
One end, the other end of the first photo resistance RO1 and the second photo resistance RO2 is grounded.
4. a kind of infusion alarm as claimed in claim 3, it is characterised in that: the infusion alarm be designed to one with
The visual package assembly that luxuriant Fei Shi dropper is flexibly set with, first optical transmitter module are set in the left/right of the visual package assembly
Portion, and the light emitting direction of its first transmitting LED light D1 and the cyclopentadienyl Fei Shi dropper diagonal line are in the same direction, first photo resistance
RO1 is set to the right/left lower part of the visual package assembly corresponding with the optical transmitter module, and the position of setting is the light emitting
The light of module when unobstructed can direct projection position, the second photo resistance RO2 is set to the corresponding cyclopentadienyl Fei Shi dropper liquid
The light of face optical transmitter module transmitting when increasing reflects the position of corresponding refraction light by dropper and interior tank body.
5. a kind of infusion alarm as claimed in claim 4, it is characterised in that: described first to compare output module include the
One potentiometer Vr1, first comparator CMP1 and load resistance R3, one end of the first potentiometer Vr1 and described first are compared
Anode compared with device CMP1 connects power supply VCC, and the variable resistance end of the first potentiometer Vr1 is connected to the first comparator
The inverting input terminal of CMP1, the non-inverting input terminal of the first comparator CMP1 connect the first light collection module, and described the
The output end of one comparator CMP1 connects first alarm module, and the one end the load resistance R3 connects power supply VCC, the other end
Connect the output end of the first comparator CMP1.
6. a kind of infusion alarm as claimed in claim 5, it is characterised in that: first alarm module includes that light is alert
Show module D2, the second current-limiting resistance R4, sound alarm module B1 and third current-limiting resistance R5, the light warning module D2 and sound
One end of sound alarm module B1 is connect with power supply VCC, and the other end passes through the second current-limiting resistance R4, third current-limiting resistance respectively
R5 connects the output end of the first comparator CMP1.
7. a kind of infusion alarm as claimed in claim 6, it is characterised in that: the infusion alarm further includes drop speed
Alarm module is monitored, for perceiving the light conditions of the second optical transmitter module using the second light collection module to monitor luxuriant Fei Shi drop
The speed that medical fluid in pipe drips, and the excessively slow alarm of drop speed is carried out according to monitoring result.
8. a kind of infusion alarm as claimed in claim 7, which is characterized in that the drop speed monitors that alarm module includes:
Second optical transmitter module is mounted on above luxuriant Fei Shi minim pipette with the second light collection module symmetry, corresponds to liquid drippage
Position, second optical transmitter module is used to generate the directional illuminant of specific wavelength；
Second light collection module drips fast state for perceiving the light conditions of second optical transmitter module to generate reflection indirectly
Signal export to second and compare output module；
Second compares output module, for generate the reference voltage compared and with the second light collection module output signal into
Row compares, output comparison result to timing module；
Timing module, for using delayer, the output starting timing or recovery for comparing output module according to described second are initial
State, and when timing time reaches the preset alarm time, the second alarm module of starting is alarmed；
Second alarm module, for carrying out sound-light alarm under the driving of the timing module.
9. a kind of infusion alarm as claimed in claim 8, it is characterised in that: the second light collection module includes partial pressure
Resistance R6, filter capacitor C3 and third photo resistance RO3, the one end the divider resistance R6 connect power supply VCC, the other end and institute
State third photo resistance RO3 output module compared with filter capacitor C3 is connected and is connected to described second, the photosensitive electricity of third
The other end for hindering RO3 and filter capacitor C3 is grounded.
10. a kind of infusion alarm as claimed in claim 9, it is characterised in that: described second, which compares output module, includes
Third potentiometer Vr3, third comparator CMP3 and load resistance R8, the third potentiometer Vr3 and third comparator CMP3
Power positive end connect power supply VCC, the variable resistance end of the third potentiometer Vr3 is connected to the third comparator CMP3's
The inverting input terminal of non-inverting input terminal, the third comparator CMP3 connects the second light collection module, the third current potential
The power supply negative terminal of the other end of device Vr3 and the third comparator CMP3 are grounded, the output termination of the third comparator CMP3
The input terminal VI of the delayer, the load resistance R8 connect the power supply VCC and third comparator CMP3 output end it
Between.
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| CN201910358278.9A CN109999271A (en) | 2019-04-30 | 2019-04-30 | A kind of infusion alarm |
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| CN201910358278.9A CN109999271A (en) | 2019-04-30 | 2019-04-30 | A kind of infusion alarm |
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Application publication date: 20190712 |