CN109498900A - Transfusion drip speed device - Google Patents
Transfusion drip speed device Download PDFInfo
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- CN109498900A CN109498900A CN201811572934.7A CN201811572934A CN109498900A CN 109498900 A CN109498900 A CN 109498900A CN 201811572934 A CN201811572934 A CN 201811572934A CN 109498900 A CN109498900 A CN 109498900A
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- liquid
- clamp ring
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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
- A61M5/16886—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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
- A61M5/1684—Monitoring, detecting, signalling or eliminating infusion flow anomalies by detecting the amount of infusate remaining, e.g. signalling end of infusion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/18—General characteristics of the apparatus with alarm
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- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The present invention relates to field of mechanical technique, in particular transfusion drip speed device, including the drop pot fixture being clamped on drop pot, for detecting the dropping liquid detection system of dropping liquid signal, display module for measuring the liquid droping speed measurement module of liquid droping speed and being shown to liquid droping speed, transfusion drip speed device, it is measured by the liquid droping speed of setting, the liquid droping speed in drop pot can be shown in real time, and pass through the display module of setting, digital display is carried out to liquid droping speed, so that liquid droping speed is shown on a display screen, check liquid droping speed situation at any time convenient for medical staff, and it is easy to operate, it is easy to use, convenient for promoting, pot fixture is dripped by setting, convenient for being clamped to drop pot, pass through the groove of setting simultaneously, on the one hand fixture block can be snapped onto different grooves, the adjusting of clamping range, another aspect groove is fitted in outside drop pot Wall increases and drips the frictional force of pot outer wall, and integral installation process is simple, fetches conveniently, service efficiency is high.
Description
Technical field
The present invention relates to field of mechanical technique, specially transfusion drip speed device.
Background technique
Venous transfusion is using atmospheric pressure and fluid pressure principle that a large amount of sterile liquids, electrolyte, drug is defeated by vein
Enter intracorporal method.By a large amount of liquid, electrolyte or blood by being injected intravenously referred to as phleboclysis.Because of the position of injection
With the difference of infusion, Peripheral vein infusion, peri-operative central venous infusion, high nutrition infusion (TPN) and blood transfusion etc. can be divided into.
Clinically, the speed of transfusion drip speed influences to directly influence the therapeutic effect of patient, therefore is to the control of drop speed
It is highly desirable, but existing transfusion drip speed, is observed only by medical staff, and inferred in conjunction with clinical experience, it is right
Dripping fast control, there are biggish deviations.In consideration of it, it is proposed that transfusion drip speed device.
Summary of the invention
The purpose of the present invention is to provide transfusion drip speed devices, to solve transfusion drip speed mentioned above in the background art, only
It is only observed by medical staff, and is inferred in conjunction with clinical experience, there are problems that biggish deviation to the control of drop speed.
To achieve the above object, the invention provides the following technical scheme:
Transfusion drip speed device, including be clamped in drop pot on drop pot fixture, the dropping liquid detection system for detecting dropping liquid signal,
Display module for measuring the liquid droping speed measurement module of liquid droping speed and being shown to liquid droping speed, the drop pot folder
Tool includes the first grip shank and the second grip shank, and one end of first grip shank is provided with the first clamp ring, first clamp ring
Inner wall be provided with multiple convex blocks, open up fluted between two convex blocks, one end of first clamp ring is provided with block,
The outer wall of first clamp ring is equipped with display screen, and first grip shank outer surface offers mounting groove, second clamping
One end of handle is provided with the second clamp ring, and one end of second clamp ring is integrally formed with fixture block, the appearance of second grip shank
Face is equipped with shaft, and the outer surface of the shaft is arranged with torque spring, and the outer wall of first grip shank is equipped with power supply line.
Preferably, the fixture block and the groove are engaged by clamping.
Preferably, the shaft and the mounting groove are rotatably assorted.
Preferably, the dropping liquid detection system includes one-chip computer module, drop signal processing module and level sensing
Module；
The photosignal that the one-chip computer module is used to will test is converted to identifiable digital signal；
The drop signal processing module is for detecting drop signal, amplifying, voltage compares and pulse disappears trembles place
Reason；
The level sensing module is used to detect the liquid level in drop pot and carries out warning note.
Preferably, the one-chip computer module includes central processing module, oscillating circuit module and reset circuit module；
The central processing module is for focusing on the data of detection；
The oscillating circuit module is for constituting antiresonant circuit；
The reset circuit module is used to reset singlechip chip inside auto-initiation.
Preferably, the drop signal processing module includes detection front end circuit module, signal amplification circuit module, electricity
Pressure ratio disappears twitter circuit module compared with circuit module and pulse；
The detection front end circuit module is detected for photosignal；
The signal amplification circuit module is for amplifying signal；
The voltage comparator circuit module is for converting signal；
The pulse disappears twitter circuit module for being filtered to pulse signal.
Preferably, the level sensing module includes level gauging system and liquid level warning module；
The level gauging system is used to detect the liquid level in drop pot；
The liquid level warning module be used for when drop pot in liquid level be lower than setting value after alarm.
Preferably, liquid droping speed measurement module include timer module, calculator modules, pulse signal detection module,
Burst length computational algorithm and dropping speed algoritic module；
The timer module is used for setting time section；
The calculator modules are for calculating pulse signal quantity；
The pulse signal detection module is for detecting pulse signal；
The burst length computational algorithm is used to calculate the burst length in section；
The dropping speed algoritic module is used to calculate the dropping speed of infusion.
Transfusion drip speed device in the present invention, when specifically used, operating procedure is as follows:
S1, drop pot fixture installation: operator presses finger in the first grip shank and the second grip shank, and presses first
Grip shank and the second grip shank are rotated in mounting groove by shaft, realize that the first clamp ring and the second clamp ring are opened to both sides, will
Drop pot sandwiches between the first clamp ring and the second clamp ring, unclamps again the first grip shank and the second grip shank, passes through the bullet of torque spring
Property, so that the first clamp ring and the second clamp ring are pressed from both sides to drop pot, drop pot is gripped；
S2, drop signal processing: detecting photosignal by detecting front end circuit module, amplifies electricity by signal
Road module amplifies signal, is converted by voltage comparator circuit module to signal, is disappeared twitter circuit module by pulse
Pulse signal is filtered；
S3, level sensing: the liquid level in drop pot is detected by level gauging system, passes through liquid level early warning mould
Block is alarmed after being lower than setting value to liquid level in drop pot；
S4, liquid droping speed measurement: by timer module setting time section, pulse signal is calculated by calculator modules
Quantity detects pulse signal by pulse signal detection module, when calculating the pulse in section by burst length computational algorithm
Between, the dropping speed of infusion is calculated by dropping speed algoritic module；
S5, data are shown: showing current real-time dropping speed by display module.
Compared with prior art, beneficial effects of the present invention:
1, the transfusion drip speed device drips pot fixture by setting, convenient for clamping to drop pot, while passing through the recessed of setting
On the one hand slot can snap onto fixture block in different grooves, the adjusting of clamping range, another aspect groove is fitted in outside drop pot
Wall increases and drips the frictional force of pot outer wall, improves the stability of clamping, and integral installation process is simple, fetches conveniently, makes
With high-efficient.
2, the transfusion drip speed device is measured by the liquid droping speed of setting, can be carried out in real time to the liquid droping speed in drop pot
It has been shown that, and by the display module of setting, digital display is carried out to liquid droping speed and is convenient for so that liquid droping speed is shown on a display screen
Medical staff checks liquid droping speed situation at any time, and easy to operate, easy to use, convenient for promoting.
Detailed description of the invention
Fig. 1 is drop pot fixture overall structure diagram of the invention；
Fig. 2 is dropping liquid detection system module map of the invention；
Fig. 3 is one-chip computer module figure of the invention；
Fig. 4 is central processing module circuit diagram of the invention；
Fig. 5 is oscillating circuit module circuit diagram of the invention；
Fig. 6 is reset circuit module circuit diagram of the invention；
Fig. 7 is drop signal processing module figure of the invention；
Fig. 8 is detection front end circuit figure of the invention；
Fig. 9 is signal amplification circuit figure of the invention；
Figure 10 is signal amplification circuit figure of the invention；
Figure 11 is voltage comparator circuit figure of the invention；
Figure 12 is that pulse of the invention disappears twitter circuit figure；
Figure 13 is level sensing module figure of the invention；
Figure 14 is level gauging system circuit diagram of the invention；
Figure 15 is liquid level warning module circuit diagram of the invention；
Figure 16 is liquid droping speed measurement module figure of the invention；
Figure 17 is liquid droping speed measurement flow chart of the invention；
Figure 18 is display module flow chart of the invention.
In figure: 1, the first grip shank；11, the first clamp ring；12, convex block；13, groove；14, block；15, display screen；16, pacify
Tankage；2, the second grip shank；21, the second clamp ring；22, fixture block；23, shaft；24, torque spring；3, power supply line.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
Embodiment 1
Transfusion drip speed device, including be clamped in drop pot on drop pot fixture, the dropping liquid detection system for detecting dropping liquid signal,
Display module for measuring the liquid droping speed measurement module of liquid droping speed and being shown to liquid droping speed, such as Fig. 1 and Fig. 2
Shown, drop pot fixture includes the first grip shank 1 and the second grip shank 2, and one end of the first grip shank 1 is provided with the first clamp ring 11,
The inner wall of first clamp ring 11 is provided with multiple convex blocks 12, fluted 13 is opened up between two convex blocks 12, one end of the first clamp ring 11
It is provided with block 14, the outer wall of the first clamp ring 11 is equipped with display screen 15, and 1 outer surface of the first grip shank offers mounting groove 16,
One end of second grip shank 2 is provided with the second clamp ring 21, and one end of the second clamp ring 21 is integrally formed with fixture block 22, the second grip shank
2 outer surface is equipped with shaft 23, and the outer surface of shaft 23 is arranged with torque spring 24, and the outer wall of the first grip shank 1 is equipped with
Power supply line 3, fixture block 22 and groove 13 are engaged by clamping, and shaft 23 and mounting groove 16 are rotatably assorted.
In the present embodiment, the first clamp ring 11 and the first grip shank 1 are an integral molding structure, the second clamp ring 21 and the second clamping
Handle 2 is an integral molding structure, and convenient for being able to drive the movement of the first clamp ring 11 by the first grip shank 1, passes through 2 band of the second grip shank
Dynamic second clamp ring 21 movement, realizes the clamping to drop pot.
Further, the first clamp ring 11 is made of rigid plastics material, and material has centainly structural, not variable
Shape is easily installed.
Specifically, the second clamp ring 21 is made of toughened plastic material, material has good toughness, has good
Plasticity.
It is worth noting that the inner wall of the first clamp ring 11 and the second clamp ring 21 is mounted on infrared photoelectric sensor, it is infrared
Photoelectric sensor includes infrared light-emitting diode and infrared receiving tube, and infrared light-emitting diode is limited using Zhongshan city's light icepro electronics
The patch infrared transmitting tube of the model IR19-21C/TR8 of company's production, infrared receiving tube are had using Shenzhen's great science and technology of rich think of
The patch of the model BH-5938-KN of limit company production receives head, and infrared light-emitting diode is mounted on 11 inner wall of the first clamp ring,
Infrared receiving tube is mounted on 21 inner wall of the second clamp ring.
When the drop pot fixture of transfusion drip speed device in the present embodiment is installed, operator presses finger in the first clamping
On handle 1 and the second grip shank 2, and the first grip shank 1 and the second grip shank 2 are pressed, are rotated in mounting groove 16 by shaft 23,
It realizes that the first clamp ring 11 and the second clamp ring 21 are opened to both sides, snaps onto the first clamp ring 11 and the second clamp ring 21 convenient for pot will be dripped
It is interior, and torque spring 24 is provided in shaft 23, when finger unclamps the first grip shank 1 and the second grip shank 2, pass through torsion bullet
The elasticity of spring 24 can clamp drop pot, pass through the recessed of setting so that the first clamp ring 11 and the second clamp ring 21 are pressed from both sides to drop pot
On the one hand slot 13 can snap onto fixture block 22 in different grooves 13, realize that the first clamp ring 11 and the second clamp ring 21 clamp model
The adjusting enclosed, another aspect groove 13 are fitted in drop pot outer wall, increase and drip the frictional force of pot outer wall, improve the stabilization of clamping
Property, while integral installation process is simple, fetches conveniently, service efficiency is high.
Embodiment 2
As second of embodiment of the invention, for the ease of detecting to dropping liquid, the present invention staff is arranged dropping liquid and examines
Examining system, as a kind of preferred embodiment, as shown in figure 3, dropping liquid detection system includes one-chip computer module, drop signal processing mould
Block and level sensing module, the photosignal that one-chip computer module is used to will test are converted to identifiable digital signal, drop
Signal processing module is for detecting drop signal, amplifying, voltage compares and pulse disappears trembles processing, and level sensing module is used
It is detected in the liquid level in drop pot and carries out warning note.
The dropping liquid detection system of transfusion drip speed device in the present embodiment when in use, the light that will test by one-chip computer module
Electric signal is converted to identifiable digital signal；Drop signal is detected by drop signal processing module, is amplified, voltage
Compare to disappear with pulse and trembles processing；The liquid level in drop pot is detected by level sensing module and carries out warning note.
Embodiment 3
As the third embodiment of the invention, for the ease of handling detection data single-chip microcontroller, the present inventor
Member makes improvements one-chip computer module, as a kind of preferred embodiment, as shown in figure 4, one-chip computer module includes central processing mould
Block, oscillating circuit module and reset circuit module, central processing module is for focusing on the data of detection, oscillation electricity
Road module is used to reset singlechip chip inside auto-initiation for constituting antiresonant circuit, reset circuit module.
In the present embodiment, for central processing module using AT89S52 single-chip microcontroller as central processing controller, AT89S52 is mono-
Piece machine, contains a 8 bit CPU processors, and the inside ROM of 128B RAM random access memory, 21 special registers, 4KB is read-only
Memory, 4 I/O mouthfuls of 8 parallel-by-bits, AT89S52 single-chip microcontroller pin is as shown in Figure 5.
Further, AY89S52 internal clocking mode be by using the oscillating circuit inside AT89S52, in XTAL1 and
External timing element, allows internal oscillator circuit to run on XTAL2 pin, self-oscillation, can significantly be observed by oscillograph
The waveform exported at XTAL2, timing element are made of crystal oscillator and capacitor, constitute antiresonant circuit, oscillating circuit
As shown in fig. 6, the variation of the frequency of oscillation size of crystal oscillator can be between 2-12MHz, the variation of capacitor C size is in 5-
Between 30pF.
Specifically, 24 cycles of oscillation can be generated on RST pin after the oscillating circuit work of AT89S52 single-chip microcontroller
Above high level, AT89S52 singlechip chip inside auto-initiation are resetted, after AT89S52 resets, are exported at P0-P3 mouthfuls
High level will be FFH in P0-P3 mouthfuls of contents, and initial value 07H is written into stack pointer SP, remaining special function register and
Program counter PC will be cleared, and after RST pin is changed into low level by high level, AT89S52 single-chip microcontroller is just from 0 address
Start to execute program, AT89S52 single-chip microcontroller initial reset does not influence the state of the internal RAM of AT89S52, including work register
It is exactly the init state for becoming AT89S52 internal register, reset circuit modular circuit after AT89S52 reset including R0-R7
As shown in Figure 7.
The one-chip computer module of transfusion drip speed device in the present embodiment when in use, by central processing module to the number of detection
According to being focused on, by oscillating circuit module composition antiresonant circuit, by reset circuit module to singlechip chip
Internal auto-initiation resets.
Embodiment 4
As the 4th kind of embodiment of the invention, for the ease of accurately being handled drop signal, the present invention staff
Drop signal processing module is made improvements, as a kind of preferred embodiment, as shown in figure 8, drop signal processing module includes
Detection front end circuit module, signal amplification circuit module, voltage comparator circuit module and pulse disappear twitter circuit module, detect preposition
Circuit module is detected for photosignal, and signal amplification circuit module is for amplifying signal, voltage comparator circuit
For module for converting to signal, pulse disappears twitter circuit module for being filtered to pulse signal.
In the present embodiment, detection front end circuit modular circuit is as shown in figure 9, infrared light-emitting diode drives in constant power supply
The constant infrared ray of dynamic lower transmitting, infrared ray generates reflection by external object, then by infrared receiving tube, infrared receiving tube foundation
The strong and weak of the infrared signal received generates pulse signal.
Further, due to infrared optical power the problem of, it is mV grades of electricity that the signal for receiving circuit generation is very small
Pressure, is amplified so having to pass through amplifying circuit, can just obtain the signal that can be identified, amplifier is amplified by integrated computation
The AC amplifier in the same direction that device LM324 is constituted, amplification factor formula are as follows:
AV=1+R4/R5
Wherein AV=1+500/22=23, by 23 times of enhanced processing, so that collected signal can be easy to
It is processed, signal amplification circuit is as shown in Figure 10.
Specifically, the signal crossed by enhanced processing, high level, low level are not standard, it cannot direct coverlet
Piece machine identifying processing, it is therefore desirable to convert non-type pulse signal to using voltage comparator the pulse signal of standard, electricity
Pressure comparator can compare input voltage with normal voltage, and lower than normal voltage, comparator exports 0 voltage (low-voltage),
Higher than normal voltage, comparator output HIGH voltage (4-5V), in this way, just completing the conversion of signal, in the present embodiment, use
Integrated voltage comparator LM339 compares to do voltage, and R7 is potentiometer, and adjustment criteria voltage, R8 is pull-up resistor, and voltage compares
Circuit is as shown in figure 11.
It is worth noting that the output waveform of infrared photoelectric sensor, will appear one when being influenced by ambient light
Drop generates the phenomenon that two pulses, is additionally provided with to disappear thus and trembles modular circuit, and circuit is as shown in figure 12, using 555 triggerings
Device is master chip, and 1 foot ground connection, 3 feet are empty foot, and 5 feet connect capacitor C5, capacitor C1 and capacitor C5 series connection, and the R1 that connects connects power supply
Input terminal.
The drop signal processing module of transfusion drip speed device in the present embodiment when in use, passes through detection front end circuit module
Photosignal is detected, signal is amplified by signal amplification circuit module, passes through voltage comparator circuit module pair
Signal is converted, and is filtered by the pulse twitter circuit module that disappears to pulse signal.
Embodiment 5
As the 5th kind of embodiment of the invention, for the ease of being detected to the liquid level in drop pot, the present invention staff couple
Level sensing module makes improvements, and as a kind of preferred embodiment, as shown in figure 13, level sensing module includes liquid level gauging system
System and liquid level warning module, level gauging system are used to detect the liquid level in drop pot, and liquid level warning module is used for
It alarms when dripping after liquid level is lower than setting value in pot.
In the present embodiment, level gauging system circuit is as shown in figure 14, and infrared light-emitting diode is in constant power drives
The lower constant infrared ray of transmitting, infrared ray generate reflection by external object, then by infrared receiving tube, when liquid level is located at infrared connect
When above closed tube, infrared receiving tube receives the pulse signal of the weak generation of infrared signal, when liquid level is located under infrared receiving tube
Fang Shi, infrared receiving tube receive the strong generation pulse signal of infrared signal.
Further, liquid level warning module uses a buzzer and a LED designs, when sensor detects
When liquid level, display real-time level can't detect drop lower than given value or infrared photoelectric sensor and fallen, AT89S52 single-chip microcontroller
Buzzer warning and lumination of light emitting diode work are controlled, sound-light alarm information, the sound-light alarm list in the present embodiment are transmitted
Member is divided into two parts: first is that light is alarmed, completing light alarm by the I/0 mouth control driving LED operation of AT89S52
Function, second is that acoustic alarm, can issue sound by buzzer and alarm.During this secondary design light alarm portion be
A light emitting diode is connect on the P3.4 foot of AT89S52, when alarm signal is come interim, it issues one bright one optical signal for going out flashing
Health care staff is timely notified to carry out the processing of liquid storage bottle, liquid level warning module circuit is as shown in figure 15.
The level sensing module of transfusion drip speed device in the present embodiment when in use, by level gauging system to drop pot in
Liquid level detected, by liquid level warning module to liquid level in drop pot lower than alarming after setting value.
Embodiment 6
As the 6th kind of embodiment of the invention, for the ease of being detected to the liquid droping speed in drop pot, the present inventor
Member's setting liquid droping speed measurement module, as a kind of preferred embodiment, as shown in figure 16, liquid droping speed measurement module includes timing
Device module, calculator modules, pulse signal detection module, burst length computational algorithm and dropping speed algoritic module, timer
Module is used for setting time section, and calculator modules are for calculating pulse signal quantity, and pulse signal detection module is for detecting
Pulse signal, burst length computational algorithm are used to calculate the burst length in section, and dropping speed algoritic module is defeated for calculating
The dropping speed of liquid.
In the present embodiment, the process of liquid droping speed measurement measurement is as shown in figure 17, and using timer T0 timing, the time is
200us, when collecting the pulse signal of first appearance, program goes to interrupt processing part, will be in counter COUNT storage
Hold output, then counter COUNT is reset and is calculated as COUNT=0 as the initial value of recording pulse signal, when timer is timed to
When up to 200us, interrupt routine collects input signal, and it is just by counter that whether detection has pulse signal to be transmitted at this time
COUNT content adds 1 to be COUNT=1, sets the digital pulse signal number that other counter COUNT1 acquisition testing arrives,
Storage unit size to counter COUNT1 is 10, in this way it is known that storage pulse number is recycled, in timer
5 adjacent pulse signal points are taken out in COUNT1, it is assumed that pulse starting point is y, and value is in corresponding counter COUNT at this time
N1, the 5th pulse point is exactly y+5, and value is n2 in corresponding counter COUNT at this time, thus can accurately calculate 5
Time required for pulse point.
Further, burst length computational algorithm is as follows:
T=(n2-n1)*200μS
The average value of the pulse signal interval closed in the period is
Specifically, dropping speed algoritic module algorithmic formula is as follows:
Wherein: sum=n2-n1
Embodiment 7
As the 7th kind of embodiment of the invention, for the ease of carrying out digital display to the liquid droping speed detected, the present invention is set
Display module is set, display module is arranged using DM-162 Liquid Crystal Module, and DM-162 Liquid Crystal Module is connected with single-chip microcontroller such as Fig. 8 institute
Show, DM-162 Liquid Crystal Module can show 2 row, 16 characters, there is 8 bit data bus D0~D7 and RS, tri- control terminals of R/W, EN
Mouthful, operating voltage 5V, and there is character contrast adjustment and backlight function；
DM-162 Liquid Crystal Module, in which:
1st foot: VSS is ground power supply；
2nd foot: VDD connects 5V positive supply；
3rd foot: V0 is liquid crystal display setting contrast end, and contrast is most weak when connecing positive supply, and when earthing power supply compares
Highest is spent, can be generated when contrast is excessively high " ghost ", the potentiometer that can pass through a 10K when use adjusts contrast；
4th foot: RS is register selection, selection instruction register when selection data register, low level when high level；
5th foot: RW is reading writing signal line, and when high level carries out read operation, and when low level carries out write operation, and RS and RW are common
To can be written into instruction or display address when low level, busy signal can be read when it is high level that RS, which is low level RW, works as RS
It can be written into data when for high level RW being low level；
6th foot: the end E is enable end, and when the end E is jumped by high level into low level, Liquid Crystal Module executes order；
7th~14 foot: D0~D7 is 8 bidirectional data lines；
15th~16 foot: empty foot.
Specifically, display module drives LCD display by reverser, to show current real-time dropping speed, process
Shown in Figure 18.
Transfusion drip speed device in the present invention, when specifically used, operating procedure is as follows:
S1, drop pot fixture installation: operator presses finger in the first grip shank 1 and the second grip shank 2, and presses the
One grip shank 1 and the second grip shank 2 are rotated in mounting groove 16 by shaft 23, realize the first clamp ring 11 and the second clamp ring 21
It is opened to both sides, drop pot is sandwiched between the first clamp ring 11 and the second clamp ring 21, the first grip shank 1 and the second grip shank are unclamped again
2, drop pot is gripped so that the first clamp ring 11 and the second clamp ring 21 are pressed from both sides to drop pot by the elasticity of torque spring 24；
S2, drop signal processing: detecting photosignal by detecting front end circuit module, amplifies electricity by signal
Road module amplifies signal, is converted by voltage comparator circuit module to signal, is disappeared twitter circuit module by pulse
Pulse signal is filtered；
S3, level sensing: the liquid level in drop pot is detected by level gauging system, passes through liquid level early warning mould
Block is alarmed after being lower than setting value to liquid level in drop pot；
S4, liquid droping speed measurement: by timer module setting time section, pulse signal is calculated by calculator modules
Quantity detects pulse signal by pulse signal detection module, when calculating the pulse in section by burst length computational algorithm
Between, the dropping speed of infusion is calculated by dropping speed algoritic module；
S5, data are shown: showing current real-time dropping speed by display module.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
For personnel it should be appreciated that the present invention is not limited to the above embodiments, described in the above embodiment and specification is only the present invention
Preference, be not intended to limit the invention, without departing from the spirit and scope of the present invention, the present invention also has various
Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by institute
Attached claims and its equivalent thereof.
Claims (9)
1. transfusion drip speed device, the drop pot fixture including being clamped on drop pot, are used the dropping liquid detection system for detecting dropping liquid signal
In the display module for measuring the liquid droping speed measurement module of liquid droping speed and being shown to liquid droping speed, it is characterised in that:
The drop pot fixture includes the first grip shank (1) and the second grip shank (2), and one end of first grip shank (1) is provided with the
The inner wall of one clamp ring (11), first clamp ring (11) is provided with multiple convex blocks (12), is opened up between two convex blocks (12)
One end of fluted (13), first clamp ring (11) is provided with block (14), and the outer wall of first clamp ring (11) is equipped with
Display screen (15), the first grip shank (1) outer surface offer mounting groove (16), and one end of second grip shank (2) is set
Be equipped with the second clamp ring (21), one end of second clamp ring (21) integrally formed with fixture block (22), second grip shank (2)
Outer surface is equipped with shaft (23), and the outer surface of the shaft (23) is arranged with torque spring (24), first grip shank (1)
Outer wall power supply line (3) are installed.
2. transfusion drip speed device according to claim 1, it is characterised in that: the fixture block (22) and the groove (13) clamping
Cooperation.
3. transfusion drip speed device according to claim 1, it is characterised in that: the shaft (23) and the mounting groove (16) turn
Dynamic cooperation.
4. transfusion drip speed device according to claim 1, it is characterised in that: the dropping liquid detection system includes single-chip microcontroller mould
Block, drop signal processing module and level sensing module；
The photosignal that the one-chip computer module is used to will test is converted to identifiable digital signal；
The drop signal processing module is for detecting drop signal, amplifying, voltage compares and pulse disappears trembles processing；
The level sensing module is used to detect the liquid level in drop pot and carries out warning note.
5. transfusion drip speed device according to claim 4, it is characterised in that: the one-chip computer module includes central processing mould
Block, oscillating circuit module and reset circuit module；
The central processing module is for focusing on the data of detection；
The oscillating circuit module is for constituting antiresonant circuit；
The reset circuit module is used to reset singlechip chip inside auto-initiation.
6. transfusion drip speed device according to claim 4, it is characterised in that: the drop signal processing module includes before detecting
Circuits module, signal amplification circuit module, voltage comparator circuit module and pulse disappear twitter circuit module；
The detection front end circuit module is detected for photosignal；
The signal amplification circuit module is for amplifying signal；
The voltage comparator circuit module is for converting signal；
The pulse disappears twitter circuit module for being filtered to pulse signal.
7. transfusion drip speed device according to claim 4, it is characterised in that: the level sensing module includes liquid level gauging system
System and liquid level warning module；
The level gauging system is used to detect the liquid level in drop pot；
The liquid level warning module be used for when drop pot in liquid level be lower than setting value after alarm.
8. transfusion drip speed device according to claim 1, it is characterised in that: the liquid droping speed measurement module includes timer
Module, calculator modules, pulse signal detection module, burst length computational algorithm and dropping speed algoritic module；
The timer module is used for setting time section；
The calculator modules are for calculating pulse signal quantity；
The pulse signal detection module is for detecting pulse signal；
The burst length computational algorithm is used to calculate the burst length in section；
The dropping speed algoritic module is used to calculate the dropping speed of infusion.
9. transfusion drip speed device described in -8 according to claim 1, it is characterised in that: its operating procedure is as follows:
S1, drop pot fixture installation: operator presses finger in the first grip shank (1) and the second grip shank (2), and pressing the
One grip shank (1) and the second grip shank (2), the rotation in the mounting groove (16) by shaft (23), realize the first clamp ring (11) and
Second clamp ring (21) is opened to both sides, and drop pot is sandwiched between the first clamp ring (11) and the second clamp ring (21), the first folder is unclamped again
Handle (1) and the second grip shank (2) are held, by the elasticity of torque spring (24), so that the first clamp ring (11) and the second clamp ring (21)
It presss from both sides to drop pot, drop pot is gripped；
S2, drop signal processing: photosignal is detected by detecting front end circuit module, passes through signal amplification circuit mould
Block amplifies signal, is converted by voltage comparator circuit module to signal, disappears twitter circuit module to arteries and veins by pulse
Signal is rushed to be filtered；
S3, level sensing: the liquid level in drop pot is detected by level gauging system, passes through liquid level warning module pair
Liquid level is alarmed after being lower than setting value in drop pot；
S4, liquid droping speed measurement: by timer module setting time section, pulse number is calculated by calculator modules
Amount, detects pulse signal by pulse signal detection module, calculates the burst length in section by burst length computational algorithm,
The dropping speed of infusion is calculated by dropping speed algoritic module；
S5, data are shown: showing current real-time dropping speed by display module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811572934.7A CN109498900A (en) | 2018-12-21 | 2018-12-21 | Transfusion drip speed device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811572934.7A CN109498900A (en) | 2018-12-21 | 2018-12-21 | Transfusion drip speed device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109498900A true CN109498900A (en) | 2019-03-22 |
Family
ID=65754247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811572934.7A Pending CN109498900A (en) | 2018-12-21 | 2018-12-21 | Transfusion drip speed device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109498900A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113305671A (en) * | 2021-06-29 | 2021-08-27 | 罗志刚 | Intelligent manufacturing automobile part precision grinding device |
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Application publication date: 20190322 |