CN109445489A - The heating apparatus and its application method with dual temperature control for being transfused or rinsing - Google Patents
The heating apparatus and its application method with dual temperature control for being transfused or rinsing Download PDFInfo
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- CN109445489A CN109445489A CN201811644184.XA CN201811644184A CN109445489A CN 109445489 A CN109445489 A CN 109445489A CN 201811644184 A CN201811644184 A CN 201811644184A CN 109445489 A CN109445489 A CN 109445489A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 128
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000009977 dual effect Effects 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 48
- 238000009529 body temperature measurement Methods 0.000 claims abstract description 31
- 238000001802 infusion Methods 0.000 claims abstract description 11
- 238000011010 flushing procedure Methods 0.000 claims abstract description 7
- 238000003780 insertion Methods 0.000 claims abstract description 4
- 230000037431 insertion Effects 0.000 claims abstract description 4
- 239000003990 capacitor Substances 0.000 claims description 88
- 238000006243 chemical reaction Methods 0.000 claims description 25
- 230000005611 electricity Effects 0.000 claims description 9
- 239000008280 blood Substances 0.000 claims description 7
- 210000004369 blood Anatomy 0.000 claims description 7
- 101150037899 REL1 gene Proteins 0.000 claims description 3
- 101100099158 Xenopus laevis rela gene Proteins 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 230000005619 thermoelectricity Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 230000002631 hypothermal effect Effects 0.000 description 3
- 230000010412 perfusion Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000008236 heating water Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000002318 cardia Anatomy 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000005138 cryopreservation Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000008717 functional decline Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/22—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element being a thermocouple
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Resistance Heating (AREA)
Abstract
The heating apparatus and its application method with dual temperature control for being transfused or rinsing, it will be in the inner cavity of liquid container insertion heating apparatus, start heating apparatus, microcontroller on master control borad passes through the temperature sensor RT1 measuring temperature in temperature measurement circuit, microcontroller controls heater circuit, when temperature is less than target temperature, microcontroller transmits signal to heater circuit, heating sheet is started to work, the difference of microcontroller calculating temperature sensor RT1 and thermocouple T1, the power for needing to heat is calculated by pid algorithm, heating sheet P10 and lower heating sheet P11 in connection, upper heating sheet P10 and lower heating sheet P11 heat heat-conducting plate, heat-conducting plate heats liquid container；When temperature tends to target temperature, heating power is lower and lower, after temperature reaches target temperature, liquid container is made to keep target temperature, after infusion or flushing process, disconnects the power supply of heating apparatus, takes out liquid container.
Description
Technical field
The present invention relates to the heating apparatus and its application method with dual temperature control for being transfused or rinsing, and are specifically for use in
Medical transfusion, blood transfusion and clinical flushing.
Background technique
Infusion and flushing are important clinical treatment means, especially largely rinse in infusion medical fluid, blood and operation, real
The infusion flushing liquor in medical fluid and operation often room temperature or cryo-conservation when border uses, most blood are also that freezer is protected
It deposits, since input fluid temperature is low, a large amount of inputs will lead to hypothermia, very big harm is brought to patient, such as surgery cut infection,
Cardia cevent, coagulation function decline, recovery from anesthesia time extend, extended hospital stay etc., therefore in infusion process
It needs to liquid warming.Therefore, carrying out heating in infusion is common clinical supplementary means, and the flushing in operation also has and makes
With, but often because it is pressed for time, utilization rate is not high.
Current clinically common heating means have heating water bath, incubator heating, perfusion tube heating etc..Heating water bath may
Germ is taken to pipeline surface by water-bath, may carry extremely purification region, purifying garment or net after medical staff or sufferer contact
Change on gloves, it is easy to which cross-infection is given the patient for having wound or propagated at other sufferers by mucous membrane contact, is institute's inner sense
The potential source of dye.
Incubator heating is one of the heating method generally used, needs in advance to be placed into incubator liquid and heat up, and is heated
Speed is slow, time-consuming, is not suitable for promptly being infused or transfusing blood；For heated liquid temperature without accurate display, temperature control is inaccurate；It is quiet
Only liquid heats, and heating is uneven, may cause physical and chemical properties of drugs change；Heat insulation effect is poor, heat leakage in infusion process
More, infusion process is often cool after elder generation is hot；Heating speed is restricted by liquid initial temperature, and initial temperature is lower, is heated slower.
Perfusion tube heating is also the mode being commonly used, the perfusion tube heating of patent No. ZL 200420036761.4
Mainly by the way that pipeline is placed in heating device, this way pipeline heating surface area is very limited, and usually liquid does not heat also in pipeline
Flowed to downstream to temperature, therefore on this problem, way be directly to be placed in bag body in heating apparatus, or adding
Very high temperature is set to achieve the purpose that quickly to heat, such as patent No. in thermal: ZL 03241419.6, but also therefore
Plastic packing article or pipeline are produced by high temperature melt or the security risk of precipitation chemical substance.There are also be coiled in using by pipeline
Increase the solution of heating surface area inside heating device, such as patent No.: ZL 201520889903.X, the patent No.: ZL
201730673014.4, number of patent application: ZL 201830317017.9, this way increase really heating surface area but also because
This makes pipeline become considerably long, and too long pipeline is very easy to kink or hangs rub other articles, Er Qie in use
Coiling pipeline is required when using every time, it is very inconvenient, and above two solution exists because of extrusion infusing pipeline itself
Specific thicknesses, caused by it is thermally conductive slow, using effect is bad.And equipment is often all bigger, carries not flexible installation
It is troublesome, be not easy to using.
Summary of the invention
In view of the shortcomings of the prior art, the present invention provides the heating dresses with dual temperature control for being transfused or rinsing
It sets, using the instant heating technique of dry type, liquid safe is promptly warmed to comfort temperature, help to maintain patient temperature, in advance
Anti- hypothermia is to adverse effect caused by patient.
The present invention is in order to achieve the object, used technical solution is: having dual temperature control for what is be transfused or rinse
Heating apparatus, including upper casing, lower casing, display screen, power switch, master control borad, the master control borad include microcontroller circuit, power supply
Circuit, heater circuit, display and warning circuit, it is characterised in that: further include upper heating sheet P10, lower heating sheet P11, heat-conducting plate,
Temperature sensor RT1, thermocouple T1, solid-state relay Q5, heat-conducting plate are divided into heat-conducting plate and lower heat-conducting plate, under upper heat-conducting plate
There is a U-shaped groove on surface, is equipped at intervals with rectangular recess I and rectangular recess II, rectangular recess I and rectangle in U-shaped groove opening
Groove II is extended inward from U-shaped slot opening；Lower heat-conducting plate is plate, and lower heat-conducting plate and upper heat-conducting plate are mutually fastened, above led
One inner cavity with line style opening of hot plate U-shaped groove and the formation of lower heat-conducting plate, rectangular recess I and rectangular recess II are respectively under
Heat-conducting plate forms inlet and liquid outlet, temperature sensor RT1 is equipped on the upper heat-conducting plate above liquid outlet, in inlet
The upper heat-conducting plate of top is equipped with thermocouple T1, and lower heating sheet P11 is close to the lower surface of lower heat-conducting plate, and upper heating sheet P10 is close to
The assembly of the upper surface of upper heat-conducting plate, upper heating sheet P10, heat-conducting plate and lower heating sheet P11 is fixed in lower casing, display screen edge
On the inclined-plane of upper casing front end, master control borad and solid-state relay Q5 are embedded at the top of upper casing, after power switch is located at upper casing
End, upper casing and lower casing are fastened togather；
Master control borad further includes temperature measurement circuit, standby warning circuit and entrance temperature measurement circuit, the microcontroller circuit respectively with survey
Circuit temperature, heater circuit, display and warning circuit, standby warning circuit and the connection of entrance temperature measurement circuit, temperature measurement circuit, standby report
Alert circuit is connect with temperature sensor RT1 respectively, and standby warning circuit is connect with heater circuit, and heater circuit passes through solid-state relay
Device Q5 is connect with upper heating sheet P10 and lower heating sheet P11 respectively, power circuit respectively with display and warning circuit, heater circuit
It is connected with microcontroller circuit.
The specific connection of temperature measurement circuit are as follows: 2 feet of voltage regulator circuit U8,3 feet, 6 feet, 7 feet ground connection, 1 foot of voltage regulator circuit U8
8 feet of connecting resistance R24, temperature sensor RT1, capacitor C23, one end of capacitor C24 and voltage regulator circuit U8 respectively, resistance R24's
The one end another termination capacitor C32 and 5V power supply, capacitor C32 other end ground connection, the other end ground connection of capacitor C23, temperature sensor
The RT1 other end connects the other end of capacitor C24 respectively and one end of capacitor C30, resistance R28, resistance R28 connect electricity by resistance R34
Hold the C30 other end and ground；
The specific connection of standby warning circuit are as follows: comparator U7 6,7 foot of foot and 12 feet ground connection, the 1 foot connecting resistance of comparator U7
R23, the other end of resistance R23 connect 5V power supply, resistance R22 and the one end capacitor C33 respectively, and 2 feet of comparator U7 distinguish connecting resistance
2 feet of the R22 other end and logic gates U3,3 feet of comparator U7 meet one end of 5V power supply and capacitor C26, resistance R31 respectively
With one end of a terminating resistor R27 of capacitor C29, one end of a terminating resistor R26 of resistance R30 and capacitor C28, resistance R29
With one end of a terminating resistor R25 of capacitor C27, another termination temperature measurement circuit voltage regulator circuit of resistance R27, resistance R26 and R25
1 foot of U8, the other end difference of capacitor C26, capacitor C27, capacitor C28, capacitor C29, resistance R29, resistance R30 and resistance R31
Ground connection, one end of the 13 feet difference connecting resistance R21 of comparator U7 and 3 feet of logic gates U3, the 14 feet difference of comparator U7
One end of connecting resistance R20 and 5 feet, 8 feet and 9 feet of logic gates U3, another termination capacitor C34 of resistance R20 and resistance R21
One end and 5V power supply, the other end ground connection of capacitor C34 and capacitor C33,1 foot of logic gates U3 connect logic gates U4's
1 foot, 4 feet of logic gates U3 connect 2 feet of logic gates U4, and 10 feet of logic gates U3 connect the 8 of logic gates U3
Foot and 9 feet, the 7 feet ground connection of logic gates U3,10 feet of logic gates U3 connect 9 feet of logic gates U4, logic gate electricity
11 and 12 feet of road U3 connect 2 feet of power switch S2, and 3 feet of power switch S2 meet 5V power supply, 1 foot ground connection, logic gates U3
13 feet connect 4 feet of logic gates U4,14 feet of logic gates U3 connect one end and the 5V power supply of capacitor C5, and capacitor C5's is another
One end ground connection, 3 feet of logic gates U4 connect the base stage of the triode Q1 of display and warning circuit, 5 feet of logic gates U4
30 feet of microcontroller circuit single-chip microcontroller U5 are connect, 6 feet of logic gates U4 connect 10 feet of logic gates U4, logic gates
7 feet of U4 are grounded, and 8 feet, 12 feet, 13 feet of logic gates U4 connect 1 foot of heater circuit power switch chip Q4, logic respectively
14 feet of gate circuit U4 connect one end of 5V power supply and capacitor C6, the other end ground connection of capacitor C6 respectively.
The specific connection of entrance thermometric are as follows: thermocouple to 1 foot of numeral output conversion chip U6 and 14 feet ground connection, thermocouple
To numeral output conversion chip U6 3 feet connect respectively thermocouple to 2 feet of numeral output conversion chip U6, thermocouple T1 it is negative
Pole, one end of capacitor C35 are simultaneously grounded by capacitor C13, and 4 feet of thermocouple to numeral output conversion chip U6 connect thermocouple respectively
The anode of T1, the other end of capacitor C35 are simultaneously grounded by capacitor C36, and 5 feet of thermocouple to numeral output conversion chip U6 connect
3.3V voltage is simultaneously grounded by capacitor C37, and 8 feet of thermocouple to numeral output conversion chip U6 connect 3.3V voltage and pass through capacitor
C38 ground connection, thermocouple to 9 feet of numeral output conversion chip U6,10 feet, 11 feet, 12 feet, 13 feet, 7 feet respectively with microcontroller
16 feet, 15 feet, 14 feet, 13 feet, 12 feet, 11 feet of circuit single-chip microcontroller U5 are corresponding in turn to connection.
Microcontroller U5 model are as follows: PIC24FJ128GC006；Voltage regulator circuit U8 model are as follows: TL431；Comparator U7 model
Are as follows: LM239；Logic gates U3 model are as follows: SN74HCT02；Logic gates U4 model are as follows: SN74HCT00；Thermocouple is to number
Word exports conversion chip U6 model are as follows: MAX31856.
Display screen uses 2.7 cun of OLED screens, and visible angle is greater than 160 °.Upper heat-conducting plate, lower heat-conducting plate are closed by high-intensitive aluminium
Golden material.The side of upper casing is additionally provided with a fixed handle, and fixed handle is a clip.One is additionally provided on the upper surface of upper casing
A handle.The inside of rectangular recess I and rectangular recess II on upper heat-conducting plate is set there are two outlet groove I, in lower heat-conducting plate
Upper and outlet groove I corresponding position is set there are two outlet groove II, and outlet groove I and outlet groove II form two
Outlet.
Application method for the heating apparatus with dual temperature control for being transfused or rinsing, it is characterised in that: before use, by liquid
Body container is open in insertion inner cavity by line style, and the entrance of liquid container is placed in liquid inlet, and the outlet of liquid container is placed in
In liquid outlet, in use, turning on the power switch, heating apparatus starting, the microcontroller on master control borad passes through in temperature measurement circuit
Temperature sensor RT1 measuring temperature, microcontroller control heater circuit, when temperature be less than target temperature when, microcontroller to
Heater circuit transmits signal, the solid-state relay Q5 closure of heater circuit, and heating sheet is started to work, and microcontroller collects thermometric electricity
The temperature information of the thermocouple T1 in temperature sensor RT1 and entrance temperature measurement circuit in road, and calculate their difference, micro-control
Device processed calculates the power for needing to heat by pid algorithm, then is converted into the duty of heating sheet P10 and lower heating sheet P11 heating
Than being output to solid-state relay Q5 by the PWM module of microcontroller, heating sheet P10 and lower heating sheet P11 in connection is upper to add
Backing P10 and lower heating sheet P11 heat heat-conducting plate, and heat-conducting plate heats liquid container；When temperature tends to target temperature
When, heating power is lower and lower, after temperature reaches target temperature, so that liquid container is kept target temperature, until being transfused or rushing
After washing journey, the power supply of heating apparatus is disconnected, takes out liquid container；
If temperature is lower than low-temperature warning point or when being higher than the first high temperature alarm point, microcontroller controls standby warning circuit and issues police
Report, and relative alarm information is shown on a display screen；If temperature is higher than the second high temperature alarm point, microcontroller directly controls spring
Piece relay REL1 carries out power down process to solid-state relay Q5, upper heating sheet P10 and lower heating sheet P11；If microcontroller without
The power-off of method normal control, standby warning circuit are also able to achieve the function of power-off and alarm, it is ensured that safety when heating apparatus uses
Property.
Heating apparatus is fixed on Medical rack bar before use, first passing through fixed handle.
When for transfusing blood or be infused, target temperature is 41 DEG C, and low-temperature warning point is 33 DEG C, and the first high temperature alarm point is 43
DEG C, when the second high temperature alarm point is used to rinse for 46 DEG C, target temperature is 41 DEG C, and low-temperature warning point is 33 DEG C, the first high temperature report
Alert point is 48 DEG C, and the second high temperature alarm point is 50 DEG C.
The beneficial effects of the present invention are: cooperating the laminar liquid of corresponding size to hold by the cavity shape of heating apparatus
Device realizes on the basis of not changing the fundamental length of original infusion apparatus, realizes uniform, controllable temperature formula heating, liquid is pacified
It is promptly warmed to comfort temperature entirely, helps to maintain patient temperature, prevents hypothermia to adverse effect caused by patient, and
Avoid heating temperature it is excessively high, it is too low or when it is high when it is low.
Heating apparatus uses the circuit design of heating power capable of automatic changing, can voluntarily adjust after reaching preset temperature
Heating power keeps target temperature, and the material of liquid container will not be made to melt or be precipitated chemical substance, heating dress because temperature is excessively high
Be equipped with auto-alarm function, so as to caused by because of power-off, misoperation or other reasons shut down etc. unexpected situations when and
When obtain warning make correspondence.Upper heating sheet is tightly attached on heat-conducting plate, and lower heating sheet is tightly attached on lower heat-conducting plate, in favor of equal
It is even that efficiently liquid is heated.Solid-state relay has input power small, high sensitivity, and control power is small, electromagnetic compatibility
Property good, the features such as noise is low and working frequency is high.Microcontroller has function abundant and Peripheral Interface, has saved external device
Part.
2.7 cun of OLED screens of display portion, temperature range is wide, and visible angle is greater than 160 °, and display font is big and clear,
Also there is good visual effect under not good enough illumination condition.The ac-dc conversion part of power circuit has global input voltage
The advantages that range, AC and DC, low-power consumption, high efficiency, high reliability, security isolation.It is arranged in two of line style opening
Outlet can be convenient user and liquid container be inserted into position, and be easily found impetus when taking out.The design of handle can be with
Allow user that selectively machine to be mounted on Medical rack bar or is directly placed in plane support, two ways is not
Influence using effect.Handle then can allow user more easily to move and put heating apparatus, mitigate the work of medical staff
Burden is also avoided that in mobile collide with etc. caused by machine breakdown.
When only setting the temperature sensor at one outlet, although the temperature of heating apparatus has been able to make in use
Liquid guarantees constant temperature, but in emergency situations, when such as performing the operation, because operation is hastily, lacks preheating time, so being switched on just
When also will appear of short duration heating not in time, keep outlet temperature relatively low, in use also usually to the monitoring of outlet temperature
Can be slower than instant demand, in order to make heating apparatus in use can be more accurately instant rapidly to fluid temperature realization
Regulation reduces the bring discomfort due to liquid flow to heat up not in time goes out use as far as possible, increases and be connected with thermocouple
Entrance temperature measurement circuit is controlled by dual temp measuring system by microcontroller, and the temperature information of entrance and outlet is collected simultaneously, knot
The more accurate completion calculating of the temperature difference of entrance is closed, heating power is controlled, realizes more stable temperature control.
Detailed description of the invention
Fig. 1 is three-dimensional side view of the present invention；
Fig. 2 is stereo rearview of the present invention；
Fig. 3 is main view of the present invention；
Fig. 4 is cross-sectional view of the present invention；
Fig. 5 is structure of the invention decomposition diagram；
Fig. 6 is the enlarged drawing of Fig. 5 structure A；
Fig. 7 is the sectional view of heat-conducting plate of the present invention；
Fig. 8 is temperature sensor location schematic diagram of the present invention；
Fig. 9 is usage state diagram of the invention；
Figure 10 is circuit connection block diagram of the invention；
Figure 11 is circuit diagram of the invention.
Specific embodiment
As shown in Fig. 1,5,8, the heating apparatus with dual temperature control for being transfused or rinsing, including it is upper casing 1, lower casing 2, aobvious
Display screen 3, power switch 4, master control borad 6, the master control borad 6 include microcontroller circuit, power circuit, heater circuit, display and
Warning circuit, it is characterised in that: further include upper heating sheet P10, lower heating sheet P11, heat-conducting plate 5, temperature sensor RT1, thermoelectricity
Even T1, solid-state relay Q5, the heat-conducting plate 5 divide for upper heat-conducting plate 5-1 and lower heat-conducting plate 5-2.
As shown in Fig. 3,6,7, there is a U-shaped groove in the lower surface of upper heat-conducting plate 5-1, is equipped at intervals in U-shaped groove opening
I 5-1-1 of rectangular recess and rectangular recess II 5-1-2, I 5-1-1 of rectangular recess and II 5-1-2 of rectangular recess are from U-shaped slot opening
It extends inward；Lower heat-conducting plate 5-2 is plate, and lower heat-conducting plate 5-2 and upper heat-conducting plate 5-1 are mutually fastened, the U of upper heat-conducting plate 5-1
Connected in star and lower heat-conducting plate 5-2 form the inner cavity 5-6 with line style opening 5-5, I 5-1-1 of rectangular recess and rectangular recess
II 5-1-2 forms inlet 5-3 and liquid outlet 5-4 with lower heat-conducting plate 5-2 respectively.
Temperature sensor RT1 is equipped on the upper heat-conducting plate 5-1 above liquid outlet 5-4 as shown in Fig. 4,8, in inlet 5-
The upper heat-conducting plate 5-1 of 3 tops is equipped with thermocouple T1, and lower heating sheet P11 is close to the lower surface of lower heat-conducting plate 5-2, upper heating sheet
The upper surface of heat-conducting plate 5-1 in P10 abutting.
As shown in figure 8, the assembly of upper heating sheet P10, heat-conducting plate 5 and lower heating sheet P11 are fixed in lower casing 2, it is described
Display screen 3 is embedded on the inclined-plane of 1 front end of upper casing, and master control borad 6 and solid-state relay Q5 are embedded in 1 top of upper casing.
If Fig. 1,2 power switches 4 are located at the rear end of upper casing 1, the upper casing 1 and lower casing 2 are fastened togather.Display screen 3 makes
With 2.7 cun of OLED screens, visible angle is greater than 160 ° of upper heat-conducting plate 5-1, lower heat-conducting plate 5-2 by high-strength aluminum alloy material.Upper casing 1
Side be additionally provided with a fixed handle 7, fixed handle 7 is a clip.A handle 8 is additionally provided on the upper surface of upper casing 1.
As shown in Fig. 3,6,7, set on the inside of II 5-1-2 of I 5-1-1 of rectangular recess and rectangular recess on upper heat-conducting plate 5-1
There are two outlet groove I 5-1-3, set with outlet groove I 5-1-3 corresponding position that there are two take out on lower heat-conducting plate 5-2
Port recess II 5-2-1, outlet groove I 5-1-3 and outlet groove II 5-2-1 form two outlet 5-7, outlet 5-7
At line style opening 5-5.
As shown in Figure 10, master control borad 6 further includes temperature measurement circuit, standby warning circuit and entrance temperature measurement circuit, the micro-control
Device circuit processed connects with temperature measurement circuit, heater circuit, display and warning circuit, standby warning circuit and entrance temperature measurement circuit respectively
It connects, temperature measurement circuit, standby warning circuit are connect with temperature sensor RT1 respectively, and standby warning circuit is connect with heater circuit, are added
Heater circuit connect respectively by solid-state relay Q5 with upper heating sheet P10 and lower heating sheet P11, power circuit respectively with show and
Warning circuit, heater circuit are connected with microcontroller circuit.
As shown in figure 11, the specific connection of temperature measurement circuit are as follows: 2 feet, 3 feet, 6 feet, 7 feet ground connection, 1 foot of voltage regulator circuit U8
8 feet of connecting resistance R24, temperature sensor RT1, capacitor C23, one end of capacitor C24 and voltage regulator circuit U8 respectively, resistance R24's
The one end another termination capacitor C32 and 5V power supply, capacitor C32 other end ground connection, the other end ground connection of capacitor C23, temperature sensor
The RT1 other end connects the other end of capacitor C24 respectively and one end of capacitor C30, resistance R28, resistance R28 connect electricity by resistance R34
Hold the C30 other end and ground.
As shown in figure 11, the specific connection of standby warning circuit are as follows: comparator U7 6,7 foot of foot and 12 feet ground connection, compare
The 1 foot connecting resistance R23 of device U7, the other end of resistance R23 meet 5V power supply, resistance R22 and the one end capacitor C33, comparator U7 respectively
2 feet difference the connecting resistance R22 other end and logic gates U3 2 feet, 3 feet of comparator U7 connect 5V power supply and capacitor respectively
One end of a terminating resistor R27 of one end of C26, resistance R31 and capacitor C29, a terminating resistor of resistance R30 and capacitor C28
One end of a terminating resistor R25 of one end of R26, resistance R29 and capacitor C27, the other end of resistance R27, resistance R26 and R25
Connect 1 foot of temperature measurement circuit voltage regulator circuit U8, capacitor C26, capacitor C27, capacitor C28, capacitor C29, resistance R29, resistance R30 and electricity
The other end of resistance R31 is grounded respectively, one end of the 13 feet difference connecting resistance R21 of comparator U7 and 3 feet of logic gates U3, than
One end of 14 feet difference connecting resistance R20 compared with device U7 and 5 feet, 8 feet and 9 feet of logic gates U3, resistance R20 and resistance R21
Another termination capacitor C34 one end and 5V power supply, the other end ground connection of capacitor C34 and capacitor C33, the 1 of logic gates U3
Foot connects 1 foot of logic gates U4, and 4 feet of logic gates U3 connect 2 feet of logic gates U4,10 feet of logic gates U3
8 feet and 9 feet of logic gates U3, the 7 feet ground connection of logic gates U3 are connect, 10 feet of logic gates U3 connect logic gates
9 feet of U4,11 and 12 feet of logic gates U3 connect 2 feet of power switch S2, and 3 feet of power switch S2 connect 5V power supply, and 1 foot connects
Ground, 13 feet of logic gates U3 connect 4 feet of logic gates U4, and 14 feet of logic gates U3 meet one end and the 5V of capacitor C5
Power supply, the other end ground connection of capacitor C5,3 feet of logic gates U4 connect the base stage of the triode Q1 of display and warning circuit, patrol
5 feet for collecting gate circuit U4 connect 30 feet of microcontroller circuit single-chip microcontroller U5, and 6 feet of logic gates U4 connect logic gates U4's
10 feet, the 7 feet ground connection of logic gates U4,8 feet, 12 feet, 13 feet of logic gates U4 connect heater circuit power switch respectively
1 foot of chip Q4,14 feet of logic gates U4 connect one end of 5V power supply and capacitor C6, the other end ground connection of capacitor C6 respectively.
As shown in figure 11, the specific connection of entrance thermometric are as follows: 1 foot and 14 feet of thermocouple to numeral output conversion chip U6
Ground connection, 3 feet of thermocouple to numeral output conversion chip U6 connect 2 feet of the thermocouple to numeral output conversion chip U6, heat respectively
The cathode of galvanic couple T1, one end of capacitor C35 are simultaneously grounded by capacitor C13,4 feet point of thermocouple to numeral output conversion chip U6
The anode of thermocouple T1, the other end of capacitor C35 are not connect and are grounded by capacitor C36, thermocouple to numeral output conversion chip
5 feet of U6 connect 3.3V voltage and are grounded by capacitor C37, and 8 feet of thermocouple to numeral output conversion chip U6 connect 3.3V voltage
And it is grounded by capacitor C38, thermocouple to 9 feet of numeral output conversion chip U6,10 feet, 11 feet, 12 feet, 13 feet, 7 feet difference
It is corresponding in turn to and connect with 16 feet of microcontroller circuit single-chip microcontroller U5,15 feet, 14 feet, 13 feet, 12 feet, 11 feet.
Microcontroller U5 model are as follows: PIC24FJ128GC006；Voltage regulator circuit U8 model are as follows: TL431；Comparator U7 model
Are as follows: LM239；Logic gates U3 model are as follows: SN74HCT02；Logic gates U4 model are as follows: SN74HCT00；Thermocouple is to number
Word exports conversion chip U6 model are as follows: MAX31856.
As shown in figs. 9-11, the application method for the heating apparatus with dual temperature control for being transfused or rinsing: before use, will
Liquid container 9 is open in 5-5 insertion inner cavity 5-6 by line style, and the entrance 9-1 of liquid container is placed in the 5-3 of liquid inlet, liquid
The outlet 9-2 of container is placed in liquid outlet 5-4, in use, turning on the power switch 4, heating apparatus starts, on master control borad 6
Microcontroller is by the temperature sensor RT1 measuring temperature in temperature measurement circuit, and microcontroller controls heater circuit, when temperature is less than
When target temperature, microcontroller transmits signal, the solid-state relay Q5 closure of heater circuit to heater circuit, and heating sheet starts work
To make, microcontroller collects the temperature information of the thermocouple T1 in temperature sensor RT1 and entrance temperature measurement circuit in temperature measurement circuit,
And calculate their difference, microcontroller calculates the power for needing to heat by pid algorithm, then be converted into heating sheet P10 and
The duty ratio of lower heating sheet P11 heating, is output to solid-state relay Q5, heating sheet in connection by the PWM module of microcontroller
P10 and lower heating sheet P11, upper heating sheet P10 and lower heating sheet P11 heat heat-conducting plate 5, and heat-conducting plate 5 is to liquid container 9
Heating；When temperature tends to target temperature, heating power is lower and lower, after temperature reaches target temperature, protects liquid container 9
Target temperature is held, after infusion or flushing process, the power supply of heating apparatus is disconnected, takes out liquid container 9；If warm
Lower than low-temperature warning point or when being higher than the first high temperature alarm point, microcontroller control standby warning circuit sounds an alarm degree, and
Relative alarm information is shown on display screen 3；If temperature is higher than the second high temperature alarm point, microcontroller directly controls reed relay
Device REL1 carries out power down process to solid-state relay Q5, upper heating sheet P10 and lower heating sheet P11；If microcontroller can not be normal
Control power-off, standby warning circuit are also able to achieve the function of power-off and alarm, it is ensured that safety when heating apparatus uses.
Heating apparatus is fixed on Medical rack bar before use, fixed handle 7 can also be first passed through.
When for transfusing blood or be infused, target temperature is 41 DEG C, and low-temperature warning point is 33 DEG C, and the first high temperature alarm point is 43
DEG C, when the second high temperature alarm point is used to rinse for 46 DEG C, target temperature is 41 DEG C, and low-temperature warning point is 33 DEG C, the first high temperature report
Alert point is 48 DEG C, and the second high temperature alarm point is 50 DEG C.
Claims (10)
1. the heating apparatus with dual temperature control for being transfused or rinsing, including upper casing (1), lower casing (2), display screen (3), power supply
(4), master control borad (6) are switched, the master control borad (6) includes microcontroller circuit, power circuit, heater circuit, display and alarm
Circuit, it is characterised in that: further include upper heating sheet P10, lower heating sheet P11, heat-conducting plate (5), temperature sensor RT1, thermocouple
T1, solid-state relay Q5, the heat-conducting plate (5) are divided into heat-conducting plate (5-1) and lower heat-conducting plate (5-2), the upper heat-conducting plate (5-
1) there is a U-shaped groove in lower surface, is equipped at intervals with II (5- of rectangular recess I (5-1-1) and rectangular recess in U-shaped groove opening
1-2), rectangular recess I (5-1-1) and rectangular recess II (5-1-2) are extended inward from U-shaped slot opening；Lower heat-conducting plate (5-2)
For plate, lower heat-conducting plate (5-2) and upper heat-conducting plate (5-1) are mutually fastened, upper heat-conducting plate (5-1) U-shaped groove and lower heat-conducting plate (5-
2) inner cavity (5-6) with line style opening (5-5), rectangular recess I (5-1-1) and rectangular recess II (5-1-2) point are formed
Inlet (5-3) and liquid outlet (5-4) are not formd with lower heat-conducting plate (5-2), the upper heat-conducting plate above liquid outlet (5-4)
(5-1) is equipped with temperature sensor RT1, and thermocouple T1 is equipped on the upper heat-conducting plate (5-1) above inlet (5-3), lower to add
Backing P11 is close to the lower surface of lower heat-conducting plate (5-2), the upper surface of heat-conducting plate (5-1), upper heating in upper heating sheet P10 abutting
The assembly of piece P10, heat-conducting plate (5) and lower heating sheet P11 are fixed in lower casing (2), and the display screen (3) is embedded in upper casing
(1) on the inclined-plane of front end, master control borad (6) and solid-state relay Q5 are embedded at the top of upper casing (1), and power switch (4) is located at upper casing
(1) rear end, the upper casing (1) and lower casing (2) are fastened togather；The master control borad (6) further includes temperature measurement circuit, standby alarm
Circuit and entrance temperature measurement circuit, the microcontroller circuit respectively with temperature measurement circuit, heater circuit, display and warning circuit, after
Standby warning circuit and entrance temperature measurement circuit connect, and temperature measurement circuit, standby warning circuit are connect with temperature sensor RT1 respectively, after
Standby warning circuit is connect with heater circuit, heater circuit pass through solid-state relay Q5 respectively with upper heating sheet P10 and lower heating sheet
P11 connection, power circuit are connect with display and warning circuit, heater circuit and microcontroller circuit respectively.
2. the heating apparatus with dual temperature control according to claim 1 for being transfused or rinsing, it is characterised in that: described
The specific connection of temperature measurement circuit are as follows: 2 feet of voltage regulator circuit U8,3 feet, 6 feet, 7 feet ground connection, 1 foot of voltage regulator circuit U8 connect electricity respectively
Hinder 8 feet of R24, temperature sensor RT1, capacitor C23, one end of capacitor C24 and voltage regulator circuit U8, another termination of resistance R24
The one end capacitor C32 and 5V power supply, capacitor C32 other end ground connection, the other end ground connection of capacitor C23, the temperature sensor RT1 other end
Connect the other end of capacitor C24 and one end of capacitor C30, resistance R28 respectively, it is another that resistance R28 by resistance R34 meets capacitor C30
End and ground；
The specific connection of the standby warning circuit are as follows: comparator U7 6,7 foot of foot and 12 feet ground connection, 1 foot of comparator U7 connects
Resistance R23, the other end of resistance R23 connect 5V power supply, resistance R22 and the one end capacitor C33 respectively, and 2 feet of comparator U7 connect respectively
2 feet of the resistance R22 other end and logic gates U3,3 feet of comparator U7 connect one end of 5V power supply and capacitor C26 respectively, electricity
One end of a terminating resistor R26 of one end of a terminating resistor R27 of resistance R31 and capacitor C29, resistance R30 and capacitor C28, electricity
One end of a terminating resistor R25 of R29 and capacitor C27 is hindered, resistance R27, another termination temperature measurement circuit of resistance R26 and R25 are steady
1 foot of volt circuit U8, capacitor C26, capacitor C27, capacitor C28, capacitor C29, resistance R29, resistance R30 and resistance R31 it is another
End is grounded respectively, one end of the 13 feet difference connecting resistance R21 of comparator U7 and 3 feet of logic gates U3, and the 14 of comparator U7
Foot distinguishes one end of connecting resistance R20 and 5 feet, 8 feet and 9 feet of logic gates U3, another termination of resistance R20 and resistance R21
The other end of one end of capacitor C34 and 5V power supply, capacitor C34 and capacitor C33 are grounded, and 1 foot of logic gates U3 connects logic gate
1 foot of circuit U 4,4 feet of logic gates U3 connect 2 feet of logic gates U4, and 10 feet of logic gates U3 connect logic gate electricity
8 feet and 9 feet of road U3, the 7 feet ground connection of logic gates U3,10 feet of logic gates U3 connect 9 feet of logic gates U4, patrol
11 and 12 feet for collecting gate circuit U3 connect 2 feet of power switch S2, and 3 feet of power switch S2 connect 5V power supply, 1 foot ground connection, logic gate
13 feet of circuit U 3 connect 4 feet of logic gates U4, and 14 feet of logic gates U3 connect one end and the 5V power supply of capacitor C5, capacitor
The other end of C5 is grounded, and 3 feet of logic gates U4 meet the base stage of the triode Q1 of display and warning circuit, logic gates U4
5 feet connect 30 feet of microcontroller circuit single-chip microcontroller U5,6 feet of logic gates U4 connect 10 feet of logic gates U4, logic
7 feet of gate circuit U4 are grounded, and 8 feet, 12 feet, 13 feet of logic gates U4 connect the 1 of heater circuit power switch chip Q4 respectively
Foot, 14 feet of logic gates U4 connect one end of 5V power supply and capacitor C6, the other end ground connection of capacitor C6 respectively；
The specific connection of the entrance temperature measurement circuit are as follows: thermocouple to 1 foot of numeral output conversion chip U6 and 14 feet ground connection, heat
3 feet of galvanic couple to numeral output conversion chip U6 connect thermocouple to 2 feet of numeral output conversion chip U6, thermocouple T1 respectively
Cathode, one end of capacitor C35 are simultaneously grounded by capacitor C13, and 4 feet of thermocouple to numeral output conversion chip U6 connect thermoelectricity respectively
The anode of even T1, the other end of capacitor C35 are simultaneously grounded by capacitor C36, and 5 feet of thermocouple to numeral output conversion chip U6 connect
3.3V voltage is simultaneously grounded by capacitor C37, and 8 feet of thermocouple to numeral output conversion chip U6 connect 3.3V voltage and pass through capacitor
C38 ground connection, thermocouple to 9 feet of numeral output conversion chip U6,10 feet, 11 feet, 12 feet, 13 feet, 7 feet respectively with microcontroller
16 feet, 15 feet, 14 feet, 13 feet, 12 feet, 11 feet of circuit single-chip microcontroller U5 are corresponding in turn to connection；
Microcontroller U5 model are as follows: PIC24FJ128GC006；Voltage regulator circuit U8 model are as follows: TL431；Comparator U7 model are as follows:
LM239；Logic gates U3 model are as follows: SN74HCT02；Logic gates U4 model are as follows: SN74HCT00；Thermocouple is to number
Export conversion chip U6 model are as follows: MAX31856.
3. the heating apparatus with dual temperature control according to claim 1 for being transfused or rinsing, it is characterised in that: display
Shield (3) and use 2.7 cun of OLED screens, visible angle is greater than 160 °.
4. the heating apparatus with dual temperature control according to claim 1 for being transfused or rinsing, it is characterised in that: above lead
Hot plate (5-1), lower heat-conducting plate (5-2) are high-strength aluminum alloy material.
5. the heating apparatus with dual temperature control according to claim 1 for being transfused or rinsing, it is characterised in that: described
The side of upper casing (1) is additionally provided with a fixed handle (7), and the fixed handle (7) is a clip.
6. the heating apparatus with dual temperature control according to claim 1 for being transfused or rinsing, it is characterised in that: described
A handle (8) is additionally provided on the upper surface of upper casing (1).
7. the heating apparatus with dual temperature control according to claim 1 for being transfused or rinsing, it is characterised in that: described
Outlet groove I there are two being set on the inside of rectangular recess I (5-1-1) and rectangular recess II (5-1-2) on upper heat-conducting plate (5-1)
(5-1-3), sets on lower heat-conducting plate (5-2) with outlet groove I (5-1-3) corresponding position that there are two outlet groove II (5-
2-1), outlet groove I (5-1-3) and outlet groove II (5-2-1) form two outlets (5-7).
8. special using the application method of the heating apparatus with dual temperature control described in claim 1 for being transfused or rinsing
Sign is, before use, by liquid container (9) by confirming entering for liquid container in line style opening (5-5) insertion inner cavity (5-6)
Mouth (9-1) is placed in liquid inlet (5-3), and the outlet (9-2) of liquid container is placed in liquid outlet (5-4), in use, opening
Power switch (4), heating apparatus start, and the microcontroller on master control borad (6) is surveyed by the temperature sensor RT1 in temperature measurement circuit
Determine temperature, microcontroller controls heater circuit, and when temperature is less than target temperature, microcontroller transmits signal to heater circuit,
The solid-state relay Q5 of heater circuit is closed, and heating sheet is started to work, and microcontroller collects the temperature sensor in temperature measurement circuit
The temperature information of thermocouple T1 in RT1 and entrance temperature measurement circuit, and their difference is calculated, it is calculated and is needed by pid algorithm
The power of heating, then it is converted into the duty ratio of heating sheet P10 and lower heating sheet P11 heating, pass through the PWM module of microcontroller
It is output to solid-state relay Q5, heating sheet P10 and lower heating sheet P11, upper heating sheet P10 and lower heating sheet P11 are to leading in connection
Hot plate (5) is heated, and heat-conducting plate (5) heats liquid container (9)；When temperature tends to target temperature, heating power is more next
It is lower, after temperature reaches target temperature, liquid container (9) is made to keep target temperature, after infusion or flushing process,
The power supply of heating apparatus is disconnected, is taken out liquid container (9)；If temperature is lower than low-temperature warning point or is higher than the first high temperature alarm
When point, microcontroller control standby warning circuit is sounded an alarm, and shows relative alarm information on display screen (3)；If temperature
When higher than the second high temperature alarm point, microcontroller directly controls anchor relay REL1, to solid-state relay Q5, upper heating sheet
P10 and lower heating sheet P11 carries out power down process；If microcontroller can not normal control power-off, standby warning circuit is also able to achieve
The function of power-off and alarm, it is ensured that safety when heating apparatus uses.
9. the application method of the heating apparatus with dual temperature control according to claim 8 for being transfused or rinsing, special
Sign is: heating apparatus being fixed on Medical rack bar (10) before use, first passing through fixed handle (7).
10. the application method of the heating apparatus with dual temperature control according to claim 8 for being transfused or rinsing, special
Sign is: when for transfusing blood, target temperature is 41 DEG C, and low-temperature warning point is 33 DEG C, and the first high temperature alarm point is 43 DEG C, and second is high
Warm alarm point is 46 DEG C；When for being infused, target temperature is 41 DEG C, and low-temperature warning point is 33 DEG C, and the first high temperature alarm point is 43
DEG C, the second high temperature alarm point is 46 DEG C；When for rinsing, target temperature is 41 DEG C, and low-temperature warning point is 33 DEG C, the first high temperature report
Alert point is 48 DEG C, and the second high temperature alarm point is 50 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811644184.XA CN109445489A (en) | 2018-12-29 | 2018-12-29 | The heating apparatus and its application method with dual temperature control for being transfused or rinsing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811644184.XA CN109445489A (en) | 2018-12-29 | 2018-12-29 | The heating apparatus and its application method with dual temperature control for being transfused or rinsing |
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