CN2406681Y - Electronic temperature controller for infusion - Google Patents
Electronic temperature controller for infusion Download PDFInfo
- Publication number
- CN2406681Y CN2406681Y CN 00229184 CN00229184U CN2406681Y CN 2406681 Y CN2406681 Y CN 2406681Y CN 00229184 CN00229184 CN 00229184 CN 00229184 U CN00229184 U CN 00229184U CN 2406681 Y CN2406681 Y CN 2406681Y
- Authority
- CN
- China
- Prior art keywords
- resistance
- constant temperature
- heating element
- comparator
- control circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to an electronic temperature controller for transfusion, which heats in a constant temperature mode to keep transfusion temperature. A PTC electrical heating element with constant temperature is connected with a control circuit board and a battery pack by heat protector, and the PTC electrical heating element with constant temperature and a heat conduction special section form an integral body to be arranged in a housing body. A movable cover plate is arranged on the integral body, and a thermometer is arranged on the movable cover plate. A control circuit is composed of an undervoltage indication circuit, an overtemperature indication circuit and a sound signal cue circuit. The utility model has the advantages of unique design, high safety and practicality and complete function, and is suitable for being used when a patient is in transfusion.
Description
This utility model relates to a kind of infusion electronic thermostat that adopts heated at constant temperature to keep the transfusion temperature.
The present situation of transfusion is at present: for eliminating the muscular tone sense and the discomfort of transfusion outpatient, reduce the generation of infusion reaction, mode such as often use that hot water bag, infusion bottle hot water heating and thermos flask heat steam are heated, this not only makes heating-up temperature grasp, and waste hot water and influence the ward clean and tidy, the disposable winding-type of Chu Xianing and the formula heating apparatus of applying ointment or plaster afterwards, its disadvantage is that intensification is slow, temperature is unstable, temperature retention time is short, the hargil of its leakage, Margarita powder have influenced local medical environment, and a large amount of plastics more causes severe environmental pollution.The mode of utilizing the 220V alternating current directly to heat simultaneously also is absolutely unsafe reliably.
The purpose of this utility model be to overcome the deficiencies in the prior art and provide a kind of efficient, fast, constant temperature, safe and reliable, work is convenient and do not have a kind of infusion electronic thermostat of any pollution.
The purpose of this utility model is achieved in that by shell stops, is arranged on PTC constant temperature electric heating element and the heat conduction special-purpose section on the housing and the set of cells and the control circuit board that are arranged in the housing are formed; PTC constant temperature electric heating element is connected with set of cells with control circuit board through thermal protector; PTC constant temperature electric heating element and heat conduction special-purpose section constitute one and place housing; it is provided with removable cover; removable cover is provided with thermometer, and the circuit on the control circuit board is made up of under-voltage indicating circuit, overtemperature indicating circuit and acoustic signal cue circuit.
The utlity model has unique, safe and practical, the multiple functional advantage of design; adopt the PTC heating; constant temperature speed is fast, and the efficient height adopts green Ni-MH battery group; low pressure is reliable; in light weight, the life-span is long, and flash-over characteristic is also energy quick charge well; be provided with multiple indication, prompting, holding circuit, safe and reliable.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a circuit diagram of the present utility model.
As shown in Figure 1; this utility model is stopped 1, is arranged on PTC constant temperature electric heating element 2 and the heat conduction special-purpose section 3 on the housing and the set of cells 4 and the control circuit board 7 that are arranged in the housing are formed by shell; PTC constant temperature electric heating element 2 is connected with set of cells 4 with control circuit board 7 through thermal protector 5; PTC constant temperature electric heating element 2 constitutes one with heat conduction special-purpose section 3 and places housing; it is provided with removable cover 8, and removable cover 8 is provided with thermometer 6.
As shown in Figure 2, the circuit on the control circuit board of the present utility model is made up of under-voltage indicating circuit, overtemperature indicating circuit and acoustic signal cue circuit, the comparator I in the under-voltage indicating circuit
C1-1Outfan is through diode D
1With resistance R
11Be connected the comparator I in the overtemperature indicating circuit
C1-2Outfan is through diode D
2With resistance R
11Be connected resistance R
11Again with comparator IC
1-3Positive input terminal is connected, and reference voltage is by resistance R
3With diode W
1Set up, and pass through resistance R
4Be connected to I
C1-1Positive input terminal, pass through resistance
9Be connected to I
C1-2Positive input terminal, pass through resistance R
12Be connected to I
C1-3Negative input end, I
C1-3Output through resistance R
13With audion BG
1Base stage connect audion BG
1Colelctor electrode be connected with buzzer F.Under-voltage indicating circuit is by comparator I
C1-1, resistance R
1, R
2, R
3, R
4, R
5, R
6, diode WR1, LED R
1Form, battery voltage just often, diode WR
1The reference voltage of determining passes through resistance R
4Receive comparator I
C1-1Positive input terminal VR
+, this moment positive input terminal VR+ voltage less than by resistance R
1, R
2Pass through resistance R after the dividing potential drop
5Receive the voltage VR of comparator negative input end
-, this moment comparator I
C1-1Outfan be low level, when supply voltage descends, because WR
1The reference voltage of determining is constant, so comparator I
C1-1The voltage VR of positive input terminal
+Greater than comparator I
C1-1The voltage VR of negative input end
-, comparator I
C1-1Outfan be high level, the one tunnel and resistance R
6With LED R
1Be connected, pass through resistance R
6Sending and receiving optical diode LEDR
1, make light emitting diode bright, promptly under-voltage demonstration, another road and diode D1 and resistance R
11Be connected, by diode D
1And resistance R
11Receive comparator I in the sound equipment cue circuit
C1-3Positive input terminal, make buzzer work, send the sound equipment cue.Resistance R
7, R
8, R
9, R
10, comparator I
C1-2, the thermal protector resistance R
tForm the high-temperature prompt circuit, in normal temperature, I
C1-2Positive input terminal VR
+By R
9Meet WR
1, being reference voltage, its value is lower than by R
7, R
tDividing potential drop is through resistance R
8To I
C1-2The VR of negative input end
-, I
C1-2Outfan be low level, work as R
tRise R with temperature
tResistance descends, R
7, R
tPartial pressure value be VR
-Less than reference voltage V R
+The time, I
C1-2Outfan be output as high level, the one tunnel through resistance R
10Sending and receiving optical diode LEDR
2For high temperature light shows that another road is through diode D
2, resistance R
11 receives I
C1-3Positive input terminal, make VR
+Greater than VR
-Connect by audion BG
1Make buzzer work, send the sound equipment cue.Comparator I
C1-3, resistance R
11, R
12, R
13, R
14Form the acoustic signal cue circuit, I
C1-3Input VR
-Pass through R
12Meet reference voltage WR
1End is being worked as I
C1-1, I
C1-2Then pass through diode D when wherein any exports high level
1, D
2Through resistance R
11Receive I
C1-3Positive input terminal makes VR
+Greater than VR
-, the output high level passes through resistance R
13Make audion BG
1Conducting, the sound equipment cue is sent in buzzer work.PTC constant temperature electric heating element one end connects positive source, and the other end is through thermal protector W
KConnect power cathode, if temperature control surpasses setting value, then the purpose that the PTC power supply reaches protection is cut off in protector work.Resistance R
15LED
3Be working indicating, K is a switch, goes up to dial to be duty, sets aside to be charged state, and CY is the external charge socket.
Claims (2)
1, a kind of infusion electronic thermostat; stop (1), be arranged on PTC constant temperature electric heating element (2) and the heat conduction special-purpose section (3) on the housing and the set of cells (4) and the control circuit board (7) that are arranged in the housing are formed by shell; it is characterized in that: PTC constant temperature electric heating element (2) is connected with set of cells (4) with control circuit board (7) through thermal protector (5); PTC constant temperature electric heating element (2) constitutes one with heat conduction special-purpose section (3) and places housing; it is provided with removable cover (8), and removable cover (8) is provided with thermometer (6).
2, a kind of infusion electronic thermostat according to claim 1, it is characterized in that: the circuit on the control circuit board is made up of under-voltage indicating circuit, overtemperature indicating circuit and acoustic signal cue circuit, the comparator I in the under-voltage indicating circuit
C1-1Outfan is through diode D
1With resistance R
11 is connected, the comparator I in the overtemperature indicating circuit
C1-2Outfan is through diode D
2Be connected resistance R with resistance R 11
11Again with comparator I
C1-3Positive input terminal is connected, and reference voltage is by resistance R
3With diode W
1Set up, and pass through resistance R
4Be connected to I
C1-1Positive input terminal, pass through resistance
9Be connected to I
C1-2Positive input terminal, pass through resistance R
12Be connected to I
C1-3Negative input end, I
C1-3Output through resistance R
13With audion BG
1Base stage connect audion BG
1Colelctor electrode be connected with buzzer F.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00229184 CN2406681Y (en) | 2000-01-29 | 2000-01-29 | Electronic temperature controller for infusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00229184 CN2406681Y (en) | 2000-01-29 | 2000-01-29 | Electronic temperature controller for infusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2406681Y true CN2406681Y (en) | 2000-11-22 |
Family
ID=33592528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00229184 Expired - Fee Related CN2406681Y (en) | 2000-01-29 | 2000-01-29 | Electronic temperature controller for infusion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2406681Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104068831A (en) * | 2014-01-17 | 2014-10-01 | 胡晓存 | Intelligent thermometer |
| CN108721739A (en) * | 2018-06-06 | 2018-11-02 | 肇庆市高新区晓靖科技有限公司 | A kind of infusion heating device |
| CN113181470A (en) * | 2021-04-16 | 2021-07-30 | 山西省肿瘤医院 | Disposable infusion pump monitoring device and method |
-
2000
- 2000-01-29 CN CN 00229184 patent/CN2406681Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104068831A (en) * | 2014-01-17 | 2014-10-01 | 胡晓存 | Intelligent thermometer |
| CN108721739A (en) * | 2018-06-06 | 2018-11-02 | 肇庆市高新区晓靖科技有限公司 | A kind of infusion heating device |
| CN113181470A (en) * | 2021-04-16 | 2021-07-30 | 山西省肿瘤医院 | Disposable infusion pump monitoring device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |