CN2059361U - Oxygen moistener - Google Patents

Abstract

The utility model relates to an oxygen moistener which belongs to an instrument for heating and moistening inbreathed oxygen in the clinical conventional oxygen therapy for hospitals. The utility model is composed of a moistening bottle, an air inlet pipe, an air outlet pipe, an electric heater, a temperature measuring and controlling system, a water level alarm, etc., wherein the water in the moistening bottle is heated by the electric heater, and the electric heater controls temperature automatically. The range of temperature adjustment is from 10 to 100 DEG C. The utility model has common advantages of various moistening methods with multiple functions. For example, when the utility model is used as an atomizer, the utility model is an ideal device for the conventional oxygen therapy. The utility model can effectively avoid the side effect of the conventional oxygen therapy.

Description

Oxygen moistener

This utility model is that oxygen is heated to sucking in the conventional oxygen therapy of hospital clinical, the instrument of humidifying.

Low discharge nose conduit continues oxygen therapy, is clinical the most frequently used oxygen therapeutic method, and its major side effects is for impelling respiratory secretions thickness, drying, removing difficulty, hinders in air flue to have a strong impact on ventilation and cause the respiratory failure aggravation.If the oxygen that makes suction through heat, humidifying, can overcome above-mentioned side effect, respiratory tract humidifying method commonly used has:

(1) humidifier: be divided into

(1) " Pass Over " type: gas passes through from water surface;

(2) " Bubblers " type: gas passes through from water;

(2) nebulization therapy (using nebulizer);

(3) " artificial nose ";

(4) directly instil in the trachea;

(5) the thermos flask humidifying of heating.

Above-mentioned humidifying method respectively has characteristics, and what have can not heat, though heating of having but can not be temperature automatically controlled." artificial nose " is an exception, and it can add gentle temperature automatically controlled (thermoregulation range: 0～50 ℃), but the media of heating is not the water in the humidification bottle, but gauze; Its humidifying is water not also, and by the human body expired gas.(" artificial nose " developed by us and units concerned, and declares patent.It and this utility model work the effect that plays the same tune on different musical instruments.）

Development purpose of the present utility model is, provide a kind of and have above humidifying method common advantage concurrently, and can carry out thermostatic control, thermoregulation and thermometric show, a tractor serves several purposes, the more satisfactory respiratory tract oxygen uptake humidifying instrument-automatic temperature-controlled oxygen humidifier of heating.

This utility model is made up of heat humidification device and automatic temperature control system two parts.Referring to accompanying drawing 1.The humidification device of heating is made up of humidification bottle 1, air inlet pipe 3, escape pipe 4, bottle stopper 2, electric heater 7 and water level alarm 6.During use, add an amount of drinking water in the humidification bottle.The electric heater that the feedwater heat temperature raising is used can be internal heater (placing the humidifying water in bottle)---a general tubular electrothermal element, also can be outer heater (placing outside the humidification bottle)---common electric furnace, general electric hot plate etc.Water level alarm is for water level in the prevention humidification bottle is low excessively, causes temperature control and is provided with.

Automatic temperature control system is used for the thermostatic control of water temperature in the humidification bottle, and temperature control is selected and the thermometric indication.It comprises control, thermal detector 8 and temperature-sensing probe 5, and electric heater 7.Its circuit mainly is made up of temperature control and thermometric two parts.Finish thermometric, temperature controlling function, can be by multiple circuit form for selecting for use.Temperature-adjusting circuit is made up of temperature detection, signal amplification, action executing circuit and actuator etc. usually.The homoiothermic range of choice of this partial circuit is 10～100 ℃, continuously manual adjustments; Temperature-controlled precision does not need too high, for example: ± 1.5 ℃, so adopt common temperature-adjusting circuit to meet the demands.Temperature detection can be made temperature-sensing probe with electric contact thermometer, Si-PN knot, critesistor, temp .-sensitive diodes, integrated temperature sensor etc.Signal amplifies can adopt transistor circuit or integrated transporting discharging.Executive circuit can adopt relay, perhaps makes noncontacting switch with controllable silicon.Actuator is electric heater.

Temperature measurement circuit, available critesistor is made temperature-sensing element, constitutes direct-current bridge with resistance, utilizes the imbalance of direct-current bridge, indicates temperature value on the thermometric indication electric meter.The physical circuit principle is below in conjunction with accompanying drawing, embodiment explanation.

This utility model, promptly automatic temperature-controlled oxygen humidifier, have compact conformation, easy for installation, use flexibly, advantages such as a tractor serves several purposes, can heat to oxygen, humidifying, again can temperature control, thermometric, can also use as nebulizer.It has solved the heating of fine solution, the humidifying problem of failing in the routine clinical for a long time oxygen therapy, has avoided effectively because oxygen temperatureization, humidifying deficiency and the side effect that brings to respiratory tract.

Description of drawings:

Fig. 1: the system of this utility model forms sketch map;

Fig. 2: the outline drawing of this utility model;

Fig. 3: the electrical schematic diagram of the automatic temperature control system of this utility model (comprising the water level alarm circuit);

Fig. 4: two of the temperature-adjusting circuit of this utility model automatic temperature control system;

Fig. 5: three of the temperature-adjusting circuit of this utility model automatic temperature control system.

Embodiment 1: its system forms, and the instrument profile is shown in accompanying drawing 1,2.Humidification bottle 1 adopts temperature-resistant material.Bottle stopper 2 usefulness rubber are made, and sealing property will be got well.The electrode of air inlet pipe 3, escape pipe 4, temperature-sensing probe 5, water level alarm 6 and the lead-out wire of electric heater 8 pass bottle stopper, and fitting depth is suitable, add the water water level and want suitably.The circuit of automatic temperature control system as shown in Figure 3.Among the figure: (a) temperature-adjusting circuit; (b) temperature measurement circuit; (c) temperature control major loop; (d) pilot lamp loop; (e) water level alarm circuit.The temperature-adjusting circuit temperature detection is made temperature-sensing probe with the Si-PN knot of serial connection.When the water in bottle temperature is lower than when temperature required, BG1, BG2 conducting, BG3 ends, D point high potential, the BG4 conducting, relay J 1 adhesive, normal opened contact J1-1 closure, the control utmost point of connection bidirectional triode thyristor, make it to add triggering signal, make its conducting, connect electric heater power.Simultaneously, J1-2 closure, the bright expression heating of LD1 beginning.When temperature raise, A point current potential reduced, and B point current potential reduces, and C point current potential rises, and D point current potential reduces.When water temperature was elevated to predetermined temperature, BG1, BG2 ended, the BG3 conducting, and BG4 ends, and relay J 1 discharges, and J1-1 disconnects, and bidirectional triode thyristor loses trigger voltage and ends, and cuts off electric heater power, stops heating.Simultaneously, J1-2 disconnects, and the display lamp of heating goes out, the J1-3 closure, and LD2 is bright for the cooling display lamp, and expression begins cooling.And so forth, keep constant temperature.Temperature measurement circuit is by R9, R10, R12 and R11(Rt) form a direct current electric bridge, utilize the imbalance of this bridge circuit, on the thermometric indication electric meter, indicate corresponding temperature value.Foregoing circuit is powered by simple D.C. regulated power supply.The water-level alarm circuit is made up of BG6～9, and BG6,7 forms emitter coupled bistable circuit, and BG8,9 forms complementary pipe positive feedback oscillating circuit.Water level just often, two electrodes do not have in the entry, BG6 has base flow and conducting, BG7 ends, J2 does not inhale, J2-1 keeps often opening, BG8,9 does not add voltage, loudspeaker are not reported to the police.If water level is low excessively, go beyond the limit, two electrodes leave the water surface, and BG6 loses base flow and ends, and the BG7 upset becomes conducting, the J2 adhesive, J2-1 connects, and BG8,9 obtains voltage and vibrates, and sound horn is reported to the police.Atomizing constant temperature selector switch is dialled when the atomizing position, and promptly K1 connects, and electric heater continues heating, and water temperature rises to 100 ℃, and water vapour produces in a large number, and just can be used as nebulizer and use this moment.

Embodiment 2: only change temperature-adjusting circuit, all the other can be same with embodiment 1.As shown in Figure 4, temperature-adjusting circuit is partly formed by exchanging temperature control electric bridge (W1, R1, R2, R3, Rt), alternative current amplifier (BG1, BG2), phase-sensitive amplifier (BG3), temperature control performer SCR etc.When the actual temperature of temperature-sensing probe critesistor Rt impression is lower than temperature control selection temperature, bridge circuit is output as negative signal and makes relay J 1 adhesive, make the J1-1 junction closure, controllable silicon triggering and conducting, electric heater energising heating, when experiencing temperature and temperature control, Rt select temperature identical or when being higher than, bridge balancing no-output or output positive signal, relay J 1 discharges, and contact J1-1 recovers often to open, controllable silicon does not add triggering signal, the electric heater outage.Thereby reach the temperature control purpose.This circuit is simple, and better performances.

Embodiment 3: desire adopts integrated circuit, simplifies circuit, and convenient the adjustment improved temperature-control performance.The temperature control circuit part can be selected the circuit shown in the accompanying drawing 5 for use.Its temperature-sensing element is selected integrated temperature sensor AD590 for use, and signal amplifies uses integrated voltage comparator AD311, carries out loop SSR(solid-state relay) make switch, make entire circuit become non-contact switch circuit, avoid producing and disturb.At this, R _lBe electric heater.Detailed description can be referring to 2 pages of " radio " magazine 1988 the 9th phases.

The parameter of each element of marking in above embodiment, the accompanying drawing only is a special case, the meaning of indefinite.

Claims (3)

1, a kind of oxygen humidifier of being made up of temperature bottle air inlet pipe, escape pipe, bottle stopper is characterized in that:

(1) electric heater being arranged is water heat temperature raising in the humidification bottle;

(2) there is automatic temperature control system that water is carried out temperature control and thermometric;

(3) water level alarm is arranged.

2, oxygen humidifier as claimed in claim 1 is characterized in that electric heater is an internal heater---general tubular electrothermal element, perhaps outer heater---common electric furnace, general electric hot plate.

3, oxygen humidifier as claimed in claim 1 is characterized in that being provided with atomizing, the constant temperature selector switch (K among Fig. 1,3 in the circuit of automatic temperature control system ₁).

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