CN209514434U - The heating apparatus with dual temperature control for being transfused or rinsing - Google Patents

Abstract

A kind of heating apparatus with dual temperature control for being transfused or rinsing, including upper casing, lower casing, display screen, heating sheet, heat-conducting plate, master control borad, solid-state relay, power switch, the wherein upper heating sheet of heating sheet point and lower heating sheet, the upper heat-conducting plate of heat-conducting plate point and lower heat-conducting plate, inner cavity is formed among upper and lower heat-conducting plate for placing liquid bag, heat-conducting plate inlet is equipped with inlet and liquid outlet and the outlet for taking out liquid bag more easily, temperature sensor RT1 is equipped on the upper heat-conducting plate above liquid outlet, thermocouple T1 is equipped on the upper heat-conducting plate above inlet, new heating apparatus may be implemented be infused, uniform heated at constant temperature in blood transfusion or flushing process, and it is easy to use, it is difficult to solve coil tube type heating device coil pipe, pipe winding, heat the problems such as uneven.

Description

The heating apparatus with dual temperature control for being transfused or rinsing

Technical field

The utility model relates to the heating apparatus with dual temperature control for being transfused or rinsing, and it is defeated to be specifically for use in medical treatment Liquid, 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 utility model provides the adding with dual temperature control for being transfused or rinsing Liquid safe is promptly warmed to comfort temperature using the instant heating technique of dry type by warm device, helps to maintain patient's body Temperature prevents hypothermia to adverse effect caused by patient.

The utility model is in order to achieve the object, used technical solution is: having dual temperature for what is be transfused or rinse The heating apparatus of control, including upper casing, lower casing, display screen, power switch, master control borad, the master control borad 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, lead Hot plate, temperature sensor RT1, thermocouple T1, solid-state relay Q5, heat-conducting plate is divided into heat-conducting plate and lower heat-conducting plate, upper thermally conductive There is a U-shaped groove in the lower surface of plate, is equipped at intervals with rectangular recess I and rectangular recess II, rectangular recess I in U-shaped groove opening It is extended inward with rectangular recess II from U-shaped slot opening；Lower heat-conducting plate is plate, and lower heat-conducting plate and upper heat-conducting plate are mutually detained It closes, upper heat-conducting plate U-shaped groove and lower heat-conducting plate form the inner cavity with line style opening, rectangular recess I and rectangular recess II Inlet and liquid outlet are formd with lower heat-conducting plate respectively, temperature sensor RT1 is equipped on the upper heat-conducting plate above liquid outlet, Thermocouple T1 is equipped on the upper heat-conducting plate above inlet, lower heating sheet P11 is close to the lower surface of lower heat-conducting plate, upper heating sheet The assembly of the upper surface of heat-conducting plate in P10 abutting, upper heating sheet P10, heat-conducting plate and lower heating sheet P11 is fixed in lower casing, Display screen is embedded on the inclined-plane of upper casing front end, and master control borad and solid-state relay Q5 are embedded at the top of upper casing, and power switch is located at The rear end of upper casing, 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 difference Connect with temperature measurement circuit, heater circuit, display and warning circuit, standby warning circuit and entrance temperature measurement circuit, temperature measurement circuit, after Standby warning 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 Q5 is connect with upper heating sheet P10 and lower heating sheet P11 respectively, power circuit respectively with display and warning circuit, heating Circuit 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, 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 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 are as follows:

Before use, liquid container is open in insertion inner cavity by line style, the entrance of liquid container is placed in liquid inlet, The outlet of liquid container is placed in liquid outlet, in use, turning on the power switch, heating apparatus starting, the micro-control on master control borad Device processed controls heater circuit by the temperature sensor RT1 measuring temperature in temperature measurement circuit, microcontroller, when temperature is less than target When temperature, microcontroller transmits signal, the solid-state relay Q5 closure of heater circuit to heater circuit, and heating sheet is started to work, Microcontroller collects the temperature information of the thermocouple T1 in temperature sensor RT1 and entrance temperature measurement circuit in temperature measurement circuit, and Their difference is calculated, microcontroller calculates the power for needing to heat by pid algorithm, then is converted into heating sheet P10 under The duty ratio of heating sheet P11 heating, is output to solid-state relay Q5 by the PWM module of microcontroller, heating sheet P10 in connection Heat-conducting plate is heated with lower heating sheet P11, upper heating sheet P10 and lower heating sheet P11, 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 disconnects the power supply of heating apparatus after infusion or flushing process, takes out liquid container；

If temperature, lower than low-temperature warning point or when being higher than the first high temperature alarm point, microcontroller controls standby warning circuit hair Alarm out, and relative alarm information is shown on a display screen；If temperature is higher than the second high temperature alarm point, microcontroller is directly controlled Anchor relay REL1 processed carries out power down process to solid-state relay Q5, upper heating sheet P10 and lower heating sheet P11；If microcontroller Device 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 when heating apparatus uses Safety.

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 utility model are: cooperating the laminar liquid of corresponding size by the cavity shape of heating apparatus Container realizes on the basis of not changing the fundamental length of original infusion apparatus, uniform, controllable temperature formula heating is realized, by liquid Be warmed to comfort temperature safety quickly, help to maintain patient temperature, prevention 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 the utility model three-dimensional side view；

Fig. 2 is the utility model stereo rearview；

Fig. 3 is the utility model main view；

Fig. 4 is the utility model section view；

Fig. 5 is the utility model structural decomposition diagram；

Fig. 6 is the enlarged drawing of Fig. 5 structure A；

Fig. 7 is the sectional view of the utility model heat-conducting plate；

Fig. 8 is the utility model temperature sensor location schematic diagram；

Fig. 9 is the usage state diagram of the utility model；

Figure 10 is the circuit connection block diagram of the utility model；

Figure 11 is the circuit diagram of the utility model.

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 of voltage regulator circuit U8,3 feet, 6 feet, 7 feet ground connection, pressure stabilizing 1 foot of circuit U 8 distinguishes the 8 of connecting resistance R24, temperature sensor RT1, capacitor C23, one end of capacitor C24 and voltage regulator circuit U8 Foot, one end another termination capacitor C32 of resistance R24 and 5V power supply, capacitor C32 other end ground connection, another termination of capacitor C23 Ground, the temperature sensor RT1 other end connect the other end of capacitor C24 and one end of capacitor C30, resistance R28 respectively, and resistance R28 is logical It crosses resistance R34 and connects the capacitor 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 (7)

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 outlet (5-7.