CN209790541U - Warming device for infusion or irrigation - Google Patents
Warming device for infusion or irrigation Download PDFInfo
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- CN209790541U CN209790541U CN201822253427.9U CN201822253427U CN209790541U CN 209790541 U CN209790541 U CN 209790541U CN 201822253427 U CN201822253427 U CN 201822253427U CN 209790541 U CN209790541 U CN 209790541U
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Abstract
A heating device for infusion or washing, which comprises an upper shell, the inferior valve, the display screen, the heating plate, the heat-conducting plate, the main control board, solid state relay, switch, wherein the heating plate divides the heating plate and divides the heating plate down, the heat-conducting plate divides the heat-conducting plate and divides heat-conducting plate down, form the inner chamber in the middle of the upper and lower heat-conducting plate and be used for placing the liquid bag, the heat-conducting plate entrance is equipped with inlet and liquid outlet and makes the mouth of taking out that the liquid bag easily takes out more, new heating device can realize in the infusion, the blood transfusion or wash the even constant temperature heating of in-process, and easy to use, the difficult, the pipe winding of coil.
Description
Technical Field
The utility model relates to a heating device for infusion or washing, which is particularly applied to medical infusion, blood transfusion and clinical washing.
Background
The infusion and the washing are important clinical treatment means, particularly, a large amount of infusion liquid medicine, blood and washing in an operation are washed, the infusion liquid medicine and washing liquid in the operation are usually stored at normal temperature or low temperature in practical use, most of blood is stored in a refrigeration house, and because the temperature of the input liquid is low, the low body temperature is caused by a large amount of input, so that great harm is brought to patients, such as operation incision infection, cardiovascular adverse events, blood coagulation function reduction, anesthesia recovery time extension, hospital stay extension and the like, and therefore the liquid needs to be heated in the infusion process. Therefore, warming during infusion is a common clinical aid, and intraoperative irrigation is also used, but the time is urgent, so that the utilization rate is not high.
The heating methods which are commonly used clinically at present comprise water bath heating, incubator heating, infusion tube heating and the like. The water bath heating can bring germs to the surface of the pipeline through the water bath, and medical staff or patients can be carried to a purification area, a purification clothes or a purification glove after contacting, so that cross infection is easily caused to patients with wounds or other diseased parts are easily spread through mucous membrane contact, and the medical staff or the patients are potential sources of nosocomial infection.
The incubator heating is one of the commonly used heating modes, liquid needs to be placed in the incubator in advance to be heated, the heating speed is low, time is consumed, and the incubator is not suitable for emergency transfusion or blood transfusion; the temperature of the heated liquid is not accurately displayed, and the temperature control is not accurate; the static liquid is heated, and the heating is uneven, which may cause the change of the physicochemical property of the medicine; the heat preservation effect is poor, heat loss is large in the infusion process, and the infusion process is usually carried out by heating firstly and then cooling; the heating rate is limited by the initial temperature of the liquid, the lower the initial temperature, the slower the heating.
The transfer line heating is the commonly used mode at present, and the transfer line heating of patent number ZL 200420036761.4 is mainly through putting into heating device with the pipeline, and the pipeline heated area of this kind of way is very limited, and liquid has not heated to the temperature in the pipeline often and has flowed to the low reaches, therefore on this problem, some ways are with directly putting into heating device the bag body, or set up very high temperature on heating device and reach the purpose of rapid heating, like the patent number: ZL 03241419.6, however, also creates a safety hazard in that plastic packaging or piping is subject to high temperature melting or chemical precipitation. There are also solutions to increase the heating area by coiling the pipes inside the heating device, as in patent No.: ZL 201520889903.X, patent No.: ZL201730673014.4, patent application No.: ZL 201830317017.9, which does increase the heating area but makes the tube become quite long, the tube is very easy to kink or hang on other objects during use, and it is very inconvenient to coil the tube during each use, and both of the above solutions have slow heat conduction and poor use effect due to the specific thickness of the infusion tube itself. And the equipment is often bigger, and the transportation is inflexible and the installation is also very loaded down with trivial details, is difficult to use.
Disclosure of Invention
In view of the deficiencies in the prior art, the utility model provides a heating apparatus for infusing or washing utilizes the instant heating technique of dry-type, heats comfortable temperature with liquid safety rapidly, helps maintaining patient's body temperature, prevents the adverse effect that the hypothermia arouses the patient.
The utility model discloses a realize affiliated purpose, the technical scheme who adopts is: a heating device for infusion or wash, including epitheca, inferior valve, display screen, switch, main control board, the main control board includes microcontroller circuit, power supply circuit, heating circuit, demonstration and warning circuit, its characterized in that: the heating device is characterized by further comprising an upper heating plate P10, a lower heating plate P11, a heat conducting plate, a temperature sensor RT1 and a solid-state relay Q5, wherein the heat conducting plate is divided into an upper heat conducting plate and a lower heat conducting plate, a U-shaped groove is formed in the lower surface of the upper heat conducting plate, a rectangular groove I and a rectangular groove II are arranged at the opening of the U-shaped groove at intervals, and the rectangular groove I and the rectangular groove II extend inwards from the opening of the U-shaped groove; the lower heat conducting plate is a flat plate, the lower heat conducting plate and the upper heat conducting plate are buckled with each other, an inner cavity with a linear opening is formed by a U-shaped groove of the upper heat conducting plate and the lower heat conducting plate, a liquid inlet and a liquid outlet are respectively formed by a rectangular groove I and a rectangular groove II with the lower heat conducting plate, a temperature sensor RT1 is arranged on the upper heat conducting plate above the liquid outlet, a lower heating plate P11 is tightly attached to the lower surface of the lower heat conducting plate, an upper heating plate P10 is tightly attached to the upper surface of the upper heat conducting plate, a combination of the upper heating plate P10, the heat conducting plate and a lower heating plate P11 is fixed in the lower shell, the display screen is embedded on an inclined plane at the front end of the upper shell, the main control plate and the solid-;
The main control board further comprises a temperature measuring circuit and a backup alarm circuit, the microcontroller circuit is respectively connected with the temperature measuring circuit, the heating circuit, the display and alarm circuit and the backup alarm circuit, the temperature measuring circuit and the backup alarm circuit are respectively connected with the temperature sensor RT1, the backup alarm circuit is connected with the heating circuit, the heating circuit is respectively connected with the upper heating plate P10 and the lower heating plate P11 through the solid-state relay Q5, and the power supply circuit is respectively connected with the display and alarm circuit, the heating circuit and the microcontroller circuit.
The temperature measuring circuit is specifically connected as follows: the pin 2, the pin 3, the pin 6 and the pin 7 of the voltage stabilizing circuit U8 are grounded, the pin 1 of the voltage stabilizing circuit U8 is respectively connected with the resistor R24, the temperature sensor RT1, one end of the capacitor C23 and the capacitor C24 and the pin 8 of the voltage stabilizing circuit U8, the other end of the resistor R24 is connected with one end of the capacitor C32 and the 5V power supply, the other end of the capacitor C32 is grounded, the other end of the capacitor C23 is grounded, the other end of the temperature sensor RT1 is respectively connected with the other end of the capacitor C24, one end of the capacitor C30 and one end of the resistor R28, and the resistor R28 is connected with the other end;
the backup alarm circuit is specifically connected as follows: pins 6, 7 and 12 of a comparator U are grounded, pin 1 of the comparator U is connected with a resistor R, the other end of the resistor R is respectively connected with a 5V power supply, one end of the resistor R and one end of a capacitor C, pin 2 of the comparator U is respectively connected with the other end of the resistor R and pin 2 of a logic gate circuit U, pin 3 of the comparator U is respectively connected with the 5V power supply and one end of the capacitor C, one end of the resistor R and one end of the capacitor C are connected with one end of the resistor R, the other ends of the resistor R, the resistor R and the resistor R are connected with pin 1 of a temperature stabilizing circuit U, the other ends of the capacitor C, the resistor R, the other end of the resistor R and the resistor R are respectively grounded, pin 13 of the comparator U is respectively connected with one end of the resistor R and pin 3 of the logic gate circuit U, pin 14 of the comparator, The other ends of the 8 pins and the 9 pins, the resistor R20 and the resistor R21 are connected with one end of a capacitor C34 and a 5V power supply, the other ends of the capacitor C34 and the capacitor C33 are grounded, the 1 pin of the logic gate U3 is connected with the 1 pin of the logic gate U4, the 4 pin of the logic gate U3 is connected with the 2 pin of the logic gate U4, the 10 pin of the logic gate U3 is connected with the 8 pin and the 9 pin of the logic gate U3, the 7 pin of the logic gate U3 is grounded, the 10 pin of the logic gate U3 is connected with the 9 pin of the logic gate U4, the 11 pin and the 12 pin of the logic gate U3 are connected with the 2 pin of a power switch S2, the 3 pin of the power switch S2 is connected with the 5V power supply, the 1 pin is grounded, the 13 pin of the logic gate U3 is connected with the 4 pin of the logic gate U4, the 14 pin of the logic gate U3 is connected with one end of a capacitor C5 and the 5V power supply, the other end of the, a pin 5 of the logic gate circuit U4 is connected with a pin 30 of the microcontroller circuit singlechip U5, a pin 6 of the logic gate circuit U4 is connected with a pin 10 of the logic gate circuit U4, a pin 7 of the logic gate circuit U4 is grounded, pins 8, 12 and 13 of the logic gate circuit U4 are respectively connected with a pin 1 of the heating circuit power switch chip Q4, a pin 14 of the logic gate circuit U4 is respectively connected with a 5V power supply and one end of a capacitor C6, and the other end of the capacitor C6 is grounded.
Microcontroller U5 model is: PIC24FJ128GC 006; the voltage stabilizing circuit U8 has the model number: TL 431; comparator U7 model is: LM 239; logic gate circuit U3 model is: SN74HCT 02; logic gate circuit U4 model is: SN74HCT 00.
The display screen uses 2.7 cun OLED screen, and visual angle is greater than 160. The upper heat conducting plate and the lower heat conducting plate are made of high-strength aluminum alloy materials. One side of the upper shell is also provided with a fixed handle which is a hoop. A handle is also arranged on the upper surface of the upper shell. Go up the inboard of rectangle recess I and rectangle recess II on the heat-conducting plate and be equipped with two and take out a recess I, be equipped with two on the heat-conducting plate down with taking out a recess I corresponding position and take out a recess II, take out a recess I and take out a recess II and form two and take out the mouth.
The using method of the warming device for infusion or flushing is characterized in that before use, a liquid container is inserted into an inner cavity through a linear opening, an inlet of the liquid container is arranged in a liquid inlet, an outlet of the liquid container is arranged in a liquid outlet, when the warming device is used, a power switch is turned on, the warming device is started, a microcontroller on a main control board measures the temperature through a temperature sensor RT1 in a temperature measuring circuit, the microcontroller controls a heating circuit, when the temperature is lower than a target temperature, the microcontroller transmits a signal to the heating circuit, a solid relay Q5 of the heating circuit is closed, a heating sheet starts to work, the microcontroller calculates the power required to be heated through a PID algorithm, converts the power into the duty ratio of heating of an upper heating sheet P10 and a lower heating sheet P11, outputs the power to the solid relay Q5 through a PWM module of the microcontroller, an upper heating sheet P10 and a lower heating sheet P11 are switched on, the upper heating sheet P10 and the lower heating sheet P11 heat conducting plate, the heat conducting plate heats the liquid container; when the temperature approaches to the target temperature, the heating power is lower and lower, when the temperature reaches the target temperature, the liquid container is kept at the target temperature, until the infusion or flushing process is finished, the power supply of the heating device is disconnected, and the liquid container is taken out;
If the temperature is lower than the low-temperature alarm point or higher than the first high-temperature alarm point, the microcontroller controls the backup alarm circuit to give an alarm and displays related alarm information on a display screen; if the temperature is higher than the second high-temperature alarm point, the microcontroller directly controls the reed relay REL1 to perform power-off treatment on the solid-state relay Q5, the upper heating plate P10 and the lower heating plate P11; if the microcontroller can not normally control the power failure, the backup alarm circuit can also realize the functions of power failure and alarm, and the safety of the heating device in use is ensured.
When the device is used for blood transfusion or infusion, the target temperature is 41 ℃, the low-temperature alarm point is 33 ℃, the first high-temperature alarm point is 43 ℃, and the second high-temperature alarm point is 46 ℃ for flushing, the target temperature is 41 ℃, the low-temperature alarm point is 33 ℃, the first high-temperature alarm point is 48 ℃, and the second high-temperature alarm point is 50 ℃.
The utility model has the advantages that: through the shape of the inner cavity of the heating device matched with the sheet-shaped liquid container with the corresponding size, the uniform and temperature-controllable heating is realized on the basis of not changing the basic length of the original infusion apparatus, the liquid is safely and rapidly heated to a comfortable temperature, the body temperature of a patient is favorably maintained, the adverse effect caused by the hypothermia on the patient is prevented, and the overhigh and overlow heating temperature or the high and low time are avoided.
But heating device adopts the circuit design of automatic change heating power, can adjust heating power by oneself after reaching preset temperature, keeps the target temperature, can not melt or separate out chemical because of the material that the high temperature made liquid container, and heating device has the autoalarm function to can in time obtain warning when unexpected situations such as shut down because of outage, misoperation or other reasons lead to and make the correspondence. The upper heating plate is tightly attached to the upper heat conducting plate, and the lower heating plate is tightly attached to the lower heat conducting plate, so that liquid can be uniformly and efficiently heated. The solid-state relay has the characteristics of small input power, high sensitivity, small control power, good electromagnetic compatibility, low noise, high working frequency and the like. The microcontroller has abundant functions and peripheral interfaces, and saves external devices.
the display part uses a 2.7-inch OLED screen, the temperature range is wide, the visual angle is larger than 160 degrees, the display font is large and clear, and the display part has a good visual effect under the poor illumination condition. The AC/DC conversion part of the power circuit has the advantages of global input voltage range, AC/DC dual-purpose, low power consumption, high efficiency, high reliability, safety isolation and the like. The two take-out ports provided at the linear opening facilitate the user to insert the liquid container in place and easily find the point of application when taking out the liquid container. The design of the handle can enable a user to selectively hang the machine on the medical support rod or directly place the machine on a plane support, and the use effect is not influenced by the two modes. The handle can make the user more convenient remove and put the heating device, alleviates medical personnel's work burden and also can avoid colliding with in the removal etc. and the machine that leads to damages.
Drawings
Fig. 1 is a perspective side view of the present invention;
FIG. 2 is a perspective rear view of the present invention;
FIG. 3 is a front view of the present invention;
fig. 4 is a cross-sectional view of the present invention;
FIG. 5 is an exploded view of the present invention;
FIG. 6 is an enlarged view of structure A of FIG. 5;
FIG. 7 is a cross-sectional view of the heat-conducting plate of the present invention;
Fig. 8 is a schematic diagram of the position of the temperature sensor according to the present invention;
FIG. 9 is a view showing a usage state of the present invention;
fig. 10 is a circuit connection block diagram of the present invention;
Fig. 11 is a schematic circuit diagram of the present invention.
Detailed Description
as shown in fig. 1, 5 and 8, the heating device for infusion or flushing comprises an upper shell 1, a lower shell 2, a display screen 3, a power switch 4 and a main control board 6, wherein the main control board 6 comprises a microcontroller circuit, a power circuit, a heating circuit, a display circuit and an alarm circuit, and is characterized in that: the high-temperature-resistant and high-temperature-resistant heat conduction plate is characterized by further comprising an upper heating plate P10, a lower heating plate P11, a heat conduction plate 5, a temperature sensor RT1 and a solid-state relay Q5, wherein the heat conduction plate 5 is divided into an upper heat conduction plate 5-1 and a lower heat conduction plate 5-2.
as shown in fig. 3, 6 and 7, the lower surface of the upper heat conducting plate 5-1 is provided with a U-shaped groove, a rectangular groove i 5-1-1 and a rectangular groove ii 5-1-2 are arranged at the opening of the U-shaped groove at intervals, and the rectangular groove i 5-1-1 and the rectangular groove ii 5-1-2 extend inwards from the opening of the U-shaped groove; the lower heat conducting plate 5-2 is a flat plate, the lower heat conducting plate 5-2 and the upper heat conducting plate 5-1 are buckled with each other, the U-shaped groove of the upper heat conducting plate 5-1 and the lower heat conducting plate 5-2 form an inner cavity 5-6 with a linear opening 5-5, and the rectangular groove I5-1-1 and the rectangular groove II 5-1-2 and the lower heat conducting plate 5-2 form a liquid inlet 5-3 and a liquid outlet 5-4 respectively.
As shown in fig. 4 and 8, a temperature sensor RT1 is arranged on the upper heat conducting plate 5-1 above the liquid outlet 5-4, the lower heating plate P11 is tightly attached to the lower surface of the lower heat conducting plate 5-2, and the upper heating plate P10 is tightly attached to the upper surface of the upper heat conducting plate 5-1.
As shown in fig. 8, the combination of the upper heater chip P10, the heat conductive plate 5 and the lower heater chip P11 is fixed in the lower case 2, the display screen 3 is embedded on the slope of the front end of the upper case 1, and the main control board 6 and the solid state relay Q5 are embedded on the top of the upper case 1.
As shown in fig. 1 and 2, the power switch 4 is located at the rear end of the upper shell 1, and the upper shell 1 and the lower shell 2 are buckled together. The display screen 3 uses a 2.7-inch OLED screen, the visual angle is larger than 160 degrees, and the upper heat-conducting plate 5-1 and the lower heat-conducting plate 5-2 are made of high-strength aluminum alloy materials. One side of the upper shell 1 is also provided with a fixed handle 7, and the fixed handle 7 is a hoop. A handle 8 is also arranged on the upper surface of the upper shell 1.
as shown in FIGS. 3, 6 and 7, two outlet grooves I5-1-3 are provided on the upper heat-conducting plate 5-1 at the inner sides of the rectangular groove I5-1-1 and the rectangular groove II 5-1-2, two outlet grooves II 5-2-1 are provided on the lower heat-conducting plate 5-2 at positions corresponding to the outlet grooves I5-1-3, the outlet grooves I5-1-3 and the outlet grooves II 5-2-1 form two outlets 5-7, and the outlets 5-7 are provided at the linear openings 5-5.
as shown in fig. 10, the main control panel 6 further comprises a temperature measuring circuit and a backup alarm circuit, the microcontroller circuit is respectively connected with the temperature measuring circuit, the heating circuit, the display and alarm circuit and the backup alarm circuit, the temperature measuring circuit and the backup alarm circuit are respectively connected with the temperature sensor RT1, the backup alarm circuit is connected with the heating circuit, the heating circuit is respectively connected with the upper heating plate P10 and the lower heating plate P11 through the solid relay Q5, and the power supply circuit is respectively connected with the display and alarm circuit, the heating circuit and the microcontroller circuit.
As shown in fig. 11, the specific connections of the temperature measuring circuit are as follows: the pin 2, the pin 3, the pin 6 and the pin 7 of the voltage stabilizing circuit U8 are grounded, the pin 1 of the voltage stabilizing circuit U8 is respectively connected with the resistor R24, the temperature sensor RT1, one end of the capacitor C23 and the capacitor C24 and the pin 8 of the voltage stabilizing circuit U8, the other end of the resistor R24 is connected with one end of the capacitor C32 and the 5V power supply, the other end of the capacitor C32 is grounded, the other end of the capacitor C23 is grounded, the other end of the temperature sensor RT1 is respectively connected with the other end of the capacitor C24, one end of the capacitor C30 and one end of the resistor R28, and the resistor R28 is connected with the other end.
As shown in fig. 11, the backup alarm circuit is specifically connected as follows: pins 6, 7 and 12 of a comparator U are grounded, pin 1 of the comparator U is connected with a resistor R, the other end of the resistor R is respectively connected with a 5V power supply, one end of the resistor R and one end of a capacitor C, pin 2 of the comparator U is respectively connected with the other end of the resistor R and pin 2 of a logic gate circuit U, pin 3 of the comparator U is respectively connected with the 5V power supply and one end of the capacitor C, one end of the resistor R and one end of the capacitor C are connected with one end of the resistor R, the other ends of the resistor R, the resistor R and the resistor R are connected with pin 1 of a temperature stabilizing circuit U, the other ends of the capacitor C, the resistor R, the other end of the resistor R and the resistor R are respectively grounded, pin 13 of the comparator U is respectively connected with one end of the resistor R and pin 3 of the logic gate circuit U, pin 14 of the comparator, The other ends of the 8 pins and the 9 pins, the resistor R20 and the resistor R21 are connected with one end of a capacitor C34 and a 5V power supply, the other ends of the capacitor C34 and the capacitor C33 are grounded, the 1 pin of the logic gate U3 is connected with the 1 pin of the logic gate U4, the 4 pin of the logic gate U3 is connected with the 2 pin of the logic gate U4, the 10 pin of the logic gate U3 is connected with the 8 pin and the 9 pin of the logic gate U3, the 7 pin of the logic gate U3 is grounded, the 10 pin of the logic gate U3 is connected with the 9 pin of the logic gate U4, the 11 pin and the 12 pin of the logic gate U3 are connected with the 2 pin of a power switch S2, the 3 pin of the power switch S2 is connected with the 5V power supply, the 1 pin is grounded, the 13 pin of the logic gate U3 is connected with the 4 pin of the logic gate U4, the 14 pin of the logic gate U3 is connected with one end of a capacitor C5 and the 5V power supply, the other end of the, a pin 5 of the logic gate circuit U4 is connected with a pin 30 of the microcontroller circuit singlechip U5, a pin 6 of the logic gate circuit U4 is connected with a pin 10 of the logic gate circuit U4, a pin 7 of the logic gate circuit U4 is grounded, pins 8, 12 and 13 of the logic gate circuit U4 are respectively connected with a pin 1 of the heating circuit power switch chip Q4, a pin 14 of the logic gate circuit U4 is respectively connected with a 5V power supply and one end of a capacitor C6, and the other end of the capacitor C6 is grounded.
Microcontroller U5 model is: PIC24FJ128GC 006; the voltage stabilizing circuit U8 has the model number: TL 431; comparator U7 model is: LM 239; logic gate circuit U3 model is: SN74HCT 02; logic gate circuit U4 model is: SN74HCT 00.
As shown in fig. 9-11, the method of using the warming device for infusion or irrigation: before use, a liquid container 9 is inserted into an inner cavity 5-6 through a linear opening 5-5, an inlet 9-1 of the liquid container is arranged in a liquid inlet 5-3, an outlet 9-2 of the liquid container is arranged in a liquid outlet 5-4, when the liquid heating device is used, a power switch 4 is turned on, a heating device is started, a microcontroller on a main control board 6 measures the temperature through a temperature sensor RT1 in a temperature measuring circuit, the microcontroller controls a heating circuit, when the temperature is lower than a target temperature, the microcontroller transmits a signal to the heating circuit, a solid relay Q5 of the heating circuit is closed, a heating sheet starts to work, the microcontroller calculates the power required to be heated through a PID algorithm, converts the power into the duty ratio of heating of an upper heating sheet P10 and a lower heating sheet P11, outputs the power to the solid relay Q5 through a PWM module of the microcontroller, and switches on the upper heating sheet P10 and the lower heating sheet P, the upper heating plate P10 and the lower heating plate P11 heat the heat conducting plate 5, and the heat conducting plate 5 heats the liquid container 9; when the temperature approaches to the target temperature, the heating power is lower and lower, when the temperature reaches the target temperature, the liquid container 9 is kept at the target temperature, until the infusion or flushing process is finished, the power supply of the heating device is disconnected, and the liquid container 9 is taken out; if the temperature is lower than the low-temperature alarm point or higher than the first high-temperature alarm point, the microcontroller controls the backup alarm circuit to give an alarm and displays related alarm information on the display screen 3; if the temperature is higher than the second high-temperature alarm point, the microcontroller directly controls the reed relay REL1 to perform power-off treatment on the solid-state relay Q5, the upper heating plate P10 and the lower heating plate P11; if the microcontroller can not normally control the power failure, the backup alarm circuit can also realize the functions of power failure and alarm, and the safety of the heating device in use is ensured.
before use, the heating device can be fixed on the medical bracket rod through the fixing handle 7.
when the device is used for blood transfusion or infusion, the target temperature is 41 ℃, the low-temperature alarm point is 33 ℃, the first high-temperature alarm point is 43 ℃, and the second high-temperature alarm point is 46 ℃ for flushing, the target temperature is 41 ℃, the low-temperature alarm point is 33 ℃, the first high-temperature alarm point is 48 ℃, and the second high-temperature alarm point is 50 ℃.
Claims (7)
1. A heating device for infusion or wash, including epitheca (1), inferior valve (2), display screen (3), switch (4), main control board (6) include microcontroller circuit, power supply circuit, heating circuit, demonstration and warning circuit, its characterized in that: the heat conduction plate is characterized by further comprising an upper heating plate P10, a lower heating plate P11, a heat conduction plate (5), a temperature sensor RT1 and a solid-state relay Q5, wherein the heat conduction plate (5) is divided into an upper heat conduction plate (5-1) and a lower heat conduction plate (5-2), the lower surface of the upper heat conduction plate (5-1) is provided with a U-shaped groove, a rectangular groove I (5-1-1) and a rectangular groove II (5-1-2) are arranged at the opening of the U-shaped groove at intervals, and the rectangular groove I (5-1-1) and the rectangular groove II (5-1-2) extend inwards from the opening of the U-shaped groove; the lower heat conducting plate (5-2) is a flat plate, the lower heat conducting plate (5-2) and the upper heat conducting plate (5-1) are buckled with each other, an inner cavity (5-6) with a linear opening (5-5) is formed by the U-shaped groove of the upper heat conducting plate (5-1) and the lower heat conducting plate (5-2), a liquid inlet (5-3) and a liquid outlet (5-4) are respectively formed by the rectangular groove I (5-1-1) and the rectangular groove II (5-1-2) and the lower heat conducting plate (5-2), a temperature sensor RT1 is arranged on the upper heat conducting plate (5-1) above the liquid outlet (5-4), the lower heating plate P11 is tightly attached to the lower surface of the lower heat conducting plate (5-2), the upper heating plate P10 is tightly attached to the upper surface of the upper heat conducting plate (5-1), and the upper, The combined body of the heat conducting plate (5) and the lower heating plate P11 is fixed in the lower shell (2), the display screen (3) is embedded on the inclined plane at the front end of the upper shell (1), the main control board (6) and the solid relay Q5 are embedded at the top of the upper shell (1), the power switch (4) is positioned at the rear end of the upper shell (1), and the upper shell (1) and the lower shell (2) are buckled together; the main control board (6) further comprises a temperature measuring circuit and a backup alarm circuit, the microcontroller circuit is respectively connected with the temperature measuring circuit, the heating circuit, the display and alarm circuit and the backup alarm circuit, the temperature measuring circuit and the backup alarm circuit are respectively connected with the temperature sensor RT1, the backup alarm circuit is connected with the heating circuit, the heating circuit is respectively connected with the upper heating plate P10 and the lower heating plate P11 through the solid-state relay Q5, and the power supply circuit is respectively connected with the display and alarm circuit, the heating circuit and the microcontroller circuit.
2. Warming device for infusion or irrigation according to claim 1, characterized in that: the temperature measuring circuit is specifically connected as follows: the pin 2, the pin 3, the pin 6 and the pin 7 of the voltage stabilizing circuit U8 are grounded, the pin 1 of the voltage stabilizing circuit U8 is respectively connected with the resistor R24, the temperature sensor RT1, one end of the capacitor C23 and the capacitor C24 and the pin 8 of the voltage stabilizing circuit U8, the other end of the resistor R24 is connected with one end of the capacitor C32 and the 5V power supply, the other end of the capacitor C32 is grounded, the other end of the capacitor C23 is grounded, the other end of the temperature sensor RT1 is respectively connected with the other end of the capacitor C24, one end of the capacitor C30 and one end of the resistor R28, and the resistor R28 is connected with the other end; the backup alarm circuit is specifically connected as follows: pins 6, 7 and 12 of a comparator U are grounded, pin 1 of the comparator U is connected with a resistor R, the other end of the resistor R is respectively connected with a 5V power supply, one end of the resistor R and one end of a capacitor C, pin 2 of the comparator U is respectively connected with the other end of the resistor R and pin 2 of a logic gate circuit U, pin 3 of the comparator U is respectively connected with the 5V power supply and one end of the capacitor C, one end of the resistor R and one end of the capacitor C are connected with one end of the resistor R, the other ends of the resistor R, the resistor R and the resistor R are connected with pin 1 of a temperature stabilizing circuit U, the other ends of the capacitor C, the resistor R, the other end of the resistor R and the resistor R are respectively grounded, pin 13 of the comparator U is respectively connected with one end of the resistor R and pin 3 of the logic gate circuit U, pin 14 of the comparator, The other ends of the 8 pins and the 9 pins, the resistor R20 and the resistor R21 are connected with one end of a capacitor C34 and a 5V power supply, the other ends of the capacitor C34 and the capacitor C33 are grounded, the 1 pin of the logic gate U3 is connected with the 1 pin of the logic gate U4, the 4 pin of the logic gate U3 is connected with the 2 pin of the logic gate U4, the 10 pin of the logic gate U3 is connected with the 8 pin and the 9 pin of the logic gate U3, the 7 pin of the logic gate U3 is grounded, the 10 pin of the logic gate U3 is connected with the 9 pin of the logic gate U4, the 11 pin and the 12 pin of the logic gate U3 are connected with the 2 pin of a power switch S2, the 3 pin of the power switch S2 is connected with the 5V power supply, the 1 pin is grounded, the 13 pin of the logic gate U3 is connected with the 4 pin of the logic gate U4, the 14 pin of the logic gate U3 is connected with one end of a capacitor C5 and the 5V power supply, the other end of the, a pin 5 of the logic gate circuit U4 is connected with a pin 30 of the microcontroller circuit singlechip U5, a pin 6 of the logic gate circuit U4 is connected with a pin 10 of the logic gate circuit U4, a pin 7 of the logic gate circuit U4 is grounded, pins 8, 12 and 13 of the logic gate circuit U4 are respectively connected with a pin 1 of the heating circuit power switch chip Q4, a pin 14 of the logic gate circuit U4 is respectively connected with a 5V power supply and one end of a capacitor C6, and the other end of the capacitor C6 is grounded;
microcontroller U5 model is: PIC24FJ128GC 006; the voltage stabilizing circuit U8 has the model number: TL 431; comparator U7 model is: LM 239; logic gate circuit U3 model is: SN74HCT 02; logic gate circuit U4 model is: SN74HCT 00.
3. Warming device for infusion or irrigation according to claim 1, characterized in that: the display screen (3) uses a 2.7-inch OLED screen, and the visual angle is larger than 160 degrees.
4. Warming device for infusion or irrigation according to claim 1, characterized in that: the upper heat conducting plate (5-1) and the lower heat conducting plate (5-2) are made of high-strength aluminum alloy materials.
5. warming device for infusion or irrigation according to claim 1, characterized in that: one side of the upper shell (1) is also provided with a fixed handle (7), and the fixed handle (7) is a hoop.
6. Warming device for infusion or irrigation according to claim 1, characterized in that: the upper surface of the upper shell (1) is also provided with a handle (8).
7. Warming device for infusion or irrigation according to claim 1, characterized in that: two take-out grooves I (5-1-3) are formed in the inner sides of the rectangular groove I (5-1-1) and the rectangular groove II (5-1-2) in the upper heat-conducting plate (5-1), two take-out grooves II (5-2-1) are formed in the lower heat-conducting plate (5-2) corresponding to the take-out grooves I (5-1-3), and the take-out grooves I (5-1-3) and the take-out grooves II (5-2-1) form two take-out ports (5-7).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822253427.9U CN209790541U (en) | 2018-12-29 | 2018-12-29 | Warming device for infusion or irrigation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822253427.9U CN209790541U (en) | 2018-12-29 | 2018-12-29 | Warming device for infusion or irrigation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109498915A (en) * | 2018-12-29 | 2019-03-22 | 天津沃姆斯医疗器械有限公司 | Heating apparatus and its application method for being transfused or rinsing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109498915A (en) * | 2018-12-29 | 2019-03-22 | 天津沃姆斯医疗器械有限公司 | Heating apparatus and its application method for being transfused or rinsing |
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