CN2170111Y - Automatic thermostat for infusion - Google Patents
Automatic thermostat for infusion Download PDFInfo
- Publication number
- CN2170111Y CN2170111Y CN 93237143 CN93237143U CN2170111Y CN 2170111 Y CN2170111 Y CN 2170111Y CN 93237143 CN93237143 CN 93237143 CN 93237143 U CN93237143 U CN 93237143U CN 2170111 Y CN2170111 Y CN 2170111Y
- Authority
- CN
- China
- Prior art keywords
- heater
- infusion
- transfusion
- temperature
- temperature sensor
- 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
Links
- 238000001802 infusion Methods 0.000 title abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims description 3
- 239000002253 acid Substances 0.000 abstract description 3
- 239000003978 infusion fluid Substances 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 230000007704 transition Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000007721 medicinal effect Effects 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to an automatic thermostat for infusion, which is a device used on an infusion apparatus for automatically heating infusion liquid. The utility model is mainly composed of a casing (1), an infusion temperature sensor (2), a heater (3), a heater temperature sensor (4) and a thermostat (5). When the utility model is used, an infusion pipe (6) is positioned in circular arc-shaped slots (3-1) of the heater (3), the heater temperature sensor (4) is positioned on the heater (3), and the infusion temperature sensor (2) is positioned on the infusion pipe of the outlet end of the heater (3) and clung with the infusion pipe. A medical care personnel's labor intensity can be lightened by the automatic thermostat for infusion, and a patient's acid expansion sense and ice-cold sense of infusion can be eliminated.
Description
This utility model is a kind of being applied on the transfusion device, gives the liquid device of heating automatically, belongs to the technical field of electronics automatic constant-temperature controller.
At present in infusion process, be directly will the liquid close to be input to 37 ℃ human body with ambient air temperature, for ice-cold sense and the bloated sense of acid of alleviating the patient infusion position, suitably accelerate the infiltration rate of medicinal liquid composition, medical personnel only can advise adopting hot wet towel or hot water bag external application tube for transfusion or transfusion part, the obvious this practice is difficult to guarantee medicinal liquid and the normal body temperature equivalence of human body, and change and nurse also extremely inconvenient, particularly when ambient temperature is lower, just feel the difficulty of nursing more.
Goal of the invention of the present utility model just provides a kind of transfusion self-acting thermos that transfusion is carried out heated at constant temperature that is specifically designed to.
This utility model mainly is made up of shell (1), transfusion temperature sensor (2), heater (3), heater temperature sensor (4), temperature controller (5), have the arc-shaped slot (3-1) that a diameter equates with the tube for transfusion external diameter on the surface of heater (3), tube for transfusion (6) is arranged in the arc-shaped slot (3-1) of heater (3), heter temperature sensing (4) is positioned on the heater (3), and transfusion temperature sensor (2) is positioned at tube for transfusion (6) that heater (3) goes out end and goes up and be close to it.Heater (3) is between feed liquor needle tubing and sight dropper.Temperature controller (5) mainly comprises temperature detection (5-1), comparator (5-2), with circuit (5-3), control circuit (5-4), heating element heater (5-5), power supply (5-6), wherein heating element heater (5-5) is connected with controllable silicon SCR I in the control circuit and is attempted by the two ends of power supply, its silicon controlled control signal from circuit, with the control signal of circuit respectively from two outfans of comparator, and comparator is made of two operational amplifiers respectively, and the in-phase input end of operational amplifier is connected with the transfusion temperature sensor with the heating-up temperature pick off respectively.
Advantage of the present utility model is that its use has reduced medical personnel's labor intensity, and main is ice-cold sense and the bloated sense of acid of having eliminated patient's feed liquor position in infusion process, has accelerated absorption and the metabolic speed of human body to medicinal liquid simultaneously.Improved medical effect, alleviated patient's misery, used this utility model, especially can embody its superiority in the lower place of ambient temperature.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the theory diagram of this utility model controller.
Fig. 3 is the electrical schematic diagram of this utility model controller.
Below in conjunction with embodiment, this utility model is further elaborated.
Temperature detection (5-1) utilizes the emitter junction series connection of three plastic packaging audions as Temperature Detector in the temperature controller (5), the temperature sensor of wherein infusing is close to and detects fluid temperature on the tube for transfusion, heater temperature sensor is close on the heater, detects the temperature of heater.This testing circuit is by the power supply of high-accuracy source of stable pressure 5G1043 output 2.5V constant voltage, and voltage varies with temperature and meets-linear relationship of 6.9mv/ ℃ standardsizing rheostat W on the Temperature Detector
2, making output voltage high level transition when fluid temperature surpasses 37 ℃ of comparator (2) is low level; Standardsizing rheostat W
2, making output voltage high level transition when heter temperature surpasses 75 ℃ of comparator (2) is low level.Comparator is made of two operational amplifiers among the amplifier integrated circuit LM324.Because W is arranged
1, W
2Regulate the output level transition point of comparator, the input offset voltage of amplifier can not influence temperature-controlled precision.Constitute by two diodes with circuit.Heating element heater is had in the middle of being inserted in by two placed in-line 20W inner heating type electric iron cores in the ceramic block of circular groove and constitutes, and tube for transfusion is carried out coated formula heating so that fluid temperature raises.Be lower than 37 ℃ in fluid temperature, when heter temperature is lower than 75 ℃, two comparators are all exported high level, the controllable silicon conducting, heater gets electrical heating.As long as fluid temperature is higher than 37 ℃ or heter temperature and is higher than 75 ℃ or both and all is higher than setting value, with circuit be output low level, controllable silicon ends, and the heater dead electricity stops heating, in order to avoid the too high breaking-up tube for transfusion of heter temperature or fluid temperature is too high that patient is caused damage.Power pack by the 220V alternating voltage after rectification directly as heater power source, again through current-limiting resistance, Zener diode blood pressure lowering, and after circuit of three-terminal voltage-stabilizing integrated 7805 voltage stabilizings obtain 5V voltage, as the power supply of precision voltage source piece 5G1403 and comparator.Power supply and heated condition are by LED
1And LED
2Show.Temperature controller partly is contained on the wiring board, draws transfusion temperature sensor and heater temperature sensor on the slave plate, and this pick off is placed the relevant position of this thermostat shell (box) respectively.During use, as long as lid is opened, tube for transfusion is placed on the arc-shaped slot and transfusion temperature sensor of heater by box, cover lid just can be realized the constant temperature to transfusion then.Just can be made into transfusion self-acting thermos of the present utility model according to the above.
Claims (3)
1, a kind of thermostat of the usefulness of infusing, form by heating part and control part branch, it is characterized in that this thermostat mainly is made up of shell (1), transfusion temperature sensor (2), heater (3), heater temperature sensor (4), temperature controller (5), tube for transfusion (6) is arranged in the arc-shaped slot (3-1) of heater (3), heter temperature sensing (4) is positioned on the heater (3), and transfusion temperature sensor (2) is positioned at tube for transfusion (6) that heater (3) goes out end and goes up and be close to it.
2, transfusion self-acting thermos according to claim 1 is characterized in that heater (3) is between feed liquor needle tubing and sight dropper.
3, transfusion self-acting thermos according to claim 1 and 2, it is characterized in that temperature controller (5) comprise temperature detection (5-1), comparator (5-2), with circuit (5-3), control circuit (5-4), heating element heater (5-5, power supply (5-6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93237143 CN2170111Y (en) | 1993-06-25 | 1993-06-25 | Automatic thermostat for infusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93237143 CN2170111Y (en) | 1993-06-25 | 1993-06-25 | Automatic thermostat for infusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2170111Y true CN2170111Y (en) | 1994-06-29 |
Family
ID=33812152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93237143 Expired - Fee Related CN2170111Y (en) | 1993-06-25 | 1993-06-25 | Automatic thermostat for infusion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2170111Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106422004A (en) * | 2016-11-22 | 2017-02-22 | 郑州科技学院 | Infusion tube heating device with automatic temperature control function |
| CN107073216A (en) * | 2014-08-28 | 2017-08-18 | 尤尼特拉克特注射器控股有限公司 | Sensor systems for drug delivery devices |
-
1993
- 1993-06-25 CN CN 93237143 patent/CN2170111Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107073216A (en) * | 2014-08-28 | 2017-08-18 | 尤尼特拉克特注射器控股有限公司 | Sensor systems for drug delivery devices |
| US10799649B2 (en) | 2014-08-28 | 2020-10-13 | Unl Holdings Llc | Sensor systems for drug delivery devices |
| CN106422004A (en) * | 2016-11-22 | 2017-02-22 | 郑州科技学院 | Infusion tube heating device with automatic temperature control function |
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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 |