CN2172128Y

CN2172128Y - Miniature atomized oxygen aspirator

Info

Publication number: CN2172128Y
Application number: CN 93213577
Authority: CN
Inventors: 胡海云
Original assignee: NANCHANG HIGH MOLECULAR MEDICAL APPLIANCES FACTORY
Current assignee: NANCHANG HIGH MOLECULAR MEDICAL APPLIANCES FACTORY
Priority date: 1993-05-19
Filing date: 1993-05-19
Publication date: 1994-07-20
Anticipated expiration: 2003-05-19

Abstract

The utility model relates to a miniature atomized oxygen aspirator, which is mainly composed of an oxygen cylinder (1), a respiration frequency generator (10), an atomizer (4), a spraying head (7), an operation conduit (8), and a relevant conduit which are connected. The frequency generator (10) is composed of a power source part, a display part, an oscillation circuit part, a driving part, and an electromagnetic valve. When oxygen is supplied, only the pipelines of the atomizer provides a plurality of usual ventilation frequency with fixed breathing hour ratio. In the course of ventilation, a switch is pressed to lead a ventilation pipeline to participate in work simultaneously. Large quantity of air is sucked in at the position of the spraying head to be blow into two lungs to lead the two lungs expand, which can help or replace autonomous respiration. The utility model is convenient for standby in families and is suitable for patients' self saving operation with the advantages of simple structure, light weight, and portability.

Description

Miniature atomized oxygen aspirator

This utility model relates to medical instruments field, is a kind of oxygen supply or miniature respirator atomizing ventilation, that be easy to carry and can promptly switch of atomizing.

Modern medicine is put into practice verified: the oxygen supply that atomizes and atomizing ventilation are respectively to rescue autonomous breathing incomplete patient and the critically ill patient who stops autonomous respiration, and be essential beyond doubt and effective.Life-kiss is no doubt convenient feasible, but comes with some shortcomings, and is only using at a puss.With conventional respirator adapted face shield pressurization oxygen supply, the same existence in some inconvenience, particularly respirator is furnished with various parameter adjusting knobs, has only professional rescue personnel just can skillfully operate at state of necessity, and the maintenance that comprises face shield is closed, and all needs the professional to grasp.The oxygen of domestic present sale upright the oxygen-making device tool, it is all more convenient to carry and make oxygen, but can only finish the oxygen supply function to patient, because it is moistening to lack atomizing, the long period use can cause that patient do not relax, and especially in patient's self-induction when sb.'s illness took a turn for the worse, can't switch to the atomizing ventilation immediately and blowing lung and save oneself, often incur loss through delay and seek medical advice the time, cause the irreversible serious consequence of returning.

Deficiency at above-mentioned technology existence, develop a kind of be easy to carry and family is standby, only establish some ventilatory frequencies commonly used, be convenient to patient and family members operation, oxygen supply in the ordinary course of things can atomize, also can convert the miniature respirator of atomizing ventilation under the state of emergency rapidly to, be design objective of the present utility model.

This utility model major technique structure is to connect by small oxygen gas cylinder, respiratory control instrument, nebulizer, injector head, working tube and by some conduits to constitute, characteristics are that the respiratory control instrument is a kind of simple type respiratory frequency generator, mainly are made up of power pack I, display part II, oscillating circuit part III, drive part IV and electromagnetic valve V.Wherein the dc source that provided by aneroid battery or additional power source of power pack I connects K switch and forms; The display part II is respectively by light emitting diode (LED1 or a LED2 ...) company switch (K12 or a K22 ...) form a termination power positive pole after some circuit parallel connections, the other end connects current-limiting resistance R12 ground connection; The oscillating circuit III mainly is that time-base integrated circuit piece IC and RC network are formed, wherein IC is SE555, foot 1 ground connection, foot 2 with meet RC network E place after foot 6 is connected, another F place of foot 7 and RC network links to each other,

foot

4,8 connect positive source by current-limiting resistance R1, and meet the F place by current-limiting resistance R3, and by filter capacitor C1 and Zener diode D9 difference ground connection, foot 5 is by capacitor C 2 ground connection, RC network mainly connects capacitor C 3 ground connection by resistor and its E end and forms, resistor is to be composed in parallel by some paths that the forward and reverse passage with different resistance values constitutes, for example forward diode D1 connects resistance R 11 and backward diode D2 and connects and meet adjustable resistance W1 again after resistance R 10 parallel connections and K switch 11 constitutes one the tunnel, forward diode D3 connects resistance R 9 and backward diode D4 and connects and meet adjustable resistance W2 again after resistance R 8 parallel connections and K switch 21 constitutes another roads, until the corresponding path of LED that constitutes some quantity and display part II, and K11, K21, K31 ... with K12, K22, K32 ... corresponding one by one interlock; Current-limiting resistance R2 one end of drive part IV is connected the base stage of another termination audion BG1 with the foot 3 of IC, and BG1 is connected by the multiple tube form with audion BG2, and the grounded collector of BG2, emitter stage meet electromagnetic valve V, another termination positive source of electromagnetic valve V; Nebulizer is that the top has the two ends inlet, outlet to stretch out a jar outer breather line in the vapor tight tank of removable makeup remover liquid, and other has suction tubule one end to place tank bottoms a, end to stretch to breather line.Injector head is a tube, and the one end has and connects firmly hole, the other end with jet syringe needle the pipe joint that can be nested with working tube is arranged, and the atomization gas pipe joint is arranged closely connecting firmly nose end, and a side has the side hole that communicates with the external world in the middle of the injector head.Each other marriage relation of parts is: small oxygen gas cylinder outlet tube connects threeway, threeway C end connects the nebulizer air inlet by conduit, the nebulizer gas outlet connects the atomizing inlet suction port of injector head by conduit, the D end of threeway connects electromagnetic valve V air inlet by conduit, electromagnetic valve V gas outlet connects jet syringe needle by conduit to be advanced injector head and connects firmly the hole, and the pipe joint by injector head connects working tube again.

This utility model also has following technology contents: can be furnished with on the working tube can be outside it cycle slip the nostril block or have the bite-block of lip shelves.The bolster of being furnished with the elastic band that to oppress patient's cricoid cartilage.Working tube is by nontoxic silica gel or silicon is moulded or plastics are made.

The utlity model has following advantage: 1. miniature respirator is simple in structure, in light weight, is convenient to vanning and carries with family standby.2. patient feels when not relaxing slightly, only needs the working tube opening is placed in nostril or the mouth, opens the oxygen cylinder valve, can wet oxygen be advanced the working tube oxygen supply through injector head from nebulizer one road pipeline; When patient's gas is forced, dyspnea, only need and then be pushed into nasopharynx or pars oralis pharyngis with thin and softish working tube opening, adopt the ventilatory frequency choose the in advance K that closes a switch, make respiratory frequency generator one road pipeline also participate in ventilation work simultaneously, at the injector head place, except ventilation oxygen and atomizing oxygen mix, Yin Wenqiuli effect also, entrainment into a large amount of outside air gentlenesses from the side hole, by working tube mixed atomization gas is delivered to the glottis place, then blow and open the help of two lungs or replace autonomous respiration, produce remarkable result.Particularly easy and simple to handle, patient generally can finish oxygen supply voluntarily or switch to ventilation and blow lung.3. owing to adopted nebulizer, no matter oxygen supply or ventilation all provides humidified gas, and it is comfortable that patient feels, can life-time service.4. because of injector head is located at outside the human body, the Wen Qiuli effect of its injection is much strong more than the existing injection Wen Qiuli effect that is located in the working tube, and working tube also can subtract carefully many.5. in hospital bed set up at a patient's home, ambulance, infirmary or field, in case patient ceases breathing, family members that know the inside story and general medical worker all can finish the rescue aeration.

Fig. 1 is this utility model structural representation.

Fig. 2 is working tube (8) cross-sectional schematic that has lip shelves bite-block.

Fig. 3 is respiratory frequency generator (a 10) circuit diagram among Fig. 1.

The miniature respirator structure of Fig. 1-shown in Figure 3 is that to have the available and inspiratory to expiratory ratio of four kinds of ventilatory frequencies be the exemplary embodiments of 1:2.

Portable minisize atomizing oxygen supply ventilation breath machine mainly connects threeway (2) by small oxygen gas cylinder (1) outlet tube, the C end of threeway (2) connects nebulizer (4) air inlet by conduit, nebulizer (4) gas outlet connects the atomizing inlet suction port (9) of injector head (7) with conduit, the D end of threeway (2) connects the electromagnetic valve V air inlet of respiratory frequency generator (10) by conduit, valve V gas outlet connects the hole that connects firmly that jet syringe needle (11) injects injector head (7) by conduit, and the escape pipe joint (12) of injector head (7) connects working tube (8).

It is the normal glass steel oxygen cylinder of 2 liters or 4 liters that the small oxygen gas cylinder can be selected commercially available capacity for use.Nebulizer (4) is a kind ofly to have a breather line (6), pipe ends to have to stretch out a jar outer inlet, outlet by top in the vapor tight tank of removable makeup remover liquid, and other has thin conduit one end to place structural shape tank bottoms, that an end stretches to breather line (6).Injector head (7) is a tube, the one end have with jet syringe needle (11) connect firmly the hole, the other end has pipe joint (12) to link with working tube (8), injector head (7) closely connects firmly nose end atomizing inlet suction port (9), and the intermediary side of injector head (7) has and the extraneous side hole (13) that communicates.

The circuit structure of respiratory frequency generator (10) mainly is made up of power pack I, display part II, oscillating circuit part III, drive part IV and electromagnetic valve V as shown in Figure 3.When adopting time-base integrated circuit piece IC to be SE555, confirm through debugging, can produce fixedly inspiratory to expiratory ratio 1:2, ventilatory frequency is respectively 20 times/minute, 40 times/minute, 60 times/minute, the best model and the parameter of each components and parts of 80 times/minute are: diode D1～D8 is IN4148, D9 is IN751, resistance R 1(200 Ω), R2(2.8k Ω), R3(4.7k Ω), R4(59.5k Ω), R5(18.4k Ω), R6(78.9k Ω), R7(28.3k Ω), R8(117.7k Ω), R9(47.5k Ω), R10(231k Ω), R11(104.3k Ω), R12(3k Ω), adjustable resistance W1 and W2(47k Ω), W3(10k Ω), W4(4.7k Ω), capacitor C 1(100 μ f), C2(0.01f), C3(10 μ f), audion BG1(9011), BG2(T1P42C), electromagnetic valve is K23D-1,2-L type, power supply are 12 volts of unidirectional currents.

When patient's self-induction is not relaxed, the working tube opening need only be placed in nostril or the mouth, open the oxygen cylinder valve, oxygen can pass through nebulizer (4) a tunnel, the negative pressure of utilizing gas velocity to produce, advance breather line (6) atomizing (its principle and flit-gun are similar) from thin conduit suction (or medicinal liquid), and then locate to suck a small amount of outside air, will send into patient's mouth and nose through conduit (8) based on the atomizing gaseous mixture of oxygen and carry out oxygen supply through the side hole (13) of injector head (7).

When patient labors for breath, be example with the nasopharynx ventilation, can ventilate by following normal procedure:, shrink the sticking blood vessel of nose earlier with 1% ephedrine drop nose; Smear lubricant at working tube (8) distal surface; Insert conduit (8) with people's palate plate parallel direction, cross the cavum nasopharyngeum corner earlier, be advanced into the most unobstructed position (glottis foreign side, its insertion depth also can be demarcated mark by medical practitioner earlier on time and carry out) again; Link to each other with conduit (8) fixed position and with the joint (12) of injector head (7); Open the oxygen cylinder valve, select ventilatory frequency and open contactor K, (when oxygen supply, if working tube (8) injects the nasopharynx position in advance, then need only open contactor K gets final product), the big flow mixture of oxygen ventilation that can realize atomizing propels the price of the help of two lungs or replaces autonomous respiration.

With respiratory frequency 20 times/be divided into example, further specify the circuit structure groundwork principle of respiratory frequency generator (10), from 20 times/minute selective positions by closing K11, because K12 and its interlock are also by by closing, the energized K switch, LED 1 luminous demonstration, and D1, D2, R10, R11, the RC network that W1 circuit and C3 form is started working, this

moment IC

4,8 feet are in 5V left and right sides current potential, 1 foot ground connection, when 3 foot place high potentials, electric current is through R3, D1, R11, W1 charges to C3, when the C3 current potential is increased to the threshold voltage of 6 feet, the upset of outfan 3 feet is low-voltage, discharge end 7 feet are connected over the ground by the discharge tube discharge of IC inside simultaneously, and C3 passes through W1 then, R10, the D2 discharge is (by 7 of IC, 1 foot discharges over the ground), when the current potential of C3 is brought down below the evoked potential of 2 feet, export 3 feet and be turned to high potential again, make 3 feet output rectangular wave pulse so repeatedly.The dutycycle (1:2) that the rectangular pulse waveform is represented and 20 times/minute frequencies are that the different resistance values that is discharged and recharged C3 performance in the circuit and each element is controlled.And then the square wave of IC foot 3 output controlled multiple tube to connect BG1, the BG2 of form saturated and end, and BG1 has determined conduction type, and BG2 has determined conduction power, thereby drives the keying of electromagnetic valve, by oxygen, stop logical oxygen when valve cuts out when valve starts.

Working tube (8) can be with softish nontoxic silica gel, silicon is moulded or plastics are made, and its opening can be splayed into blunt pointed, is convenient to insert nasopharynx or oropharynx, and does not damage pharyngeal.

When working tube (8) when nasopharynx part is ventilated, in order to help catheter positioning, can overlap a nostril link stopper (3) in the conduit periphery in advance, slide by friction and regulate link stopper (3) people's nose position that reclines, obviously also can go up system and connect soft rope prolong knot behind brain at link stopper (3).

When working tube (8) when pars oralis pharyngis is ventilated, sting bad conduit for preventing patient's anxiety, the bite-block (5) that can have the lip shelves in advance at conduit periphery cover one, adjust the bite-block position by the friction slip, bite-block (5) is with having the material of certain intensity to make in (routine hard rubber, hard plastic cement), the similar baby milk of profile is chewed, and both can prevent damage tooth, can avoid stinging flat conduit (8) again.

For fear of patient when the ventilation therapy, gas irritates stomach or gastric holds anti-stream, according to person's windpipe pro-, esophagus after, and the structure that trachea is contained by cricoid cartilage, ad hoc meter one soft bolster (15) places patient's cerebellum and back cervical region, is parallel with elastic band (14) circle cervical region before patient, compresses cricoid cartilage by elastic band (14), and then the compression esophagus, reduced the possibility that gas filling stomach or regurgitation mistake are inhaled.

Obviously working tube (8) can be made the series of products of different thicknesses, length, selects for use for all ages and classes patient and especial patient.

Claims

1, miniature atomizing oxygen supply breathing equipment is mainly by small oxygen gas cylinder (1), the respiratory control instrument, nebulizer, injector head, working tube (8) and the connection of some conduits form, it is characterized in that the respiratory control instrument is a kind of respiratory frequency generator (10), it is by the power pack I, the display part II, oscillating circuit part III, drive part IV and electromagnetic valve V are formed, the power pack I connects the anodal A end that K switch is formed by aneroid battery or additional power source, negative pole B end, the display part II connects K switch 12 by LED 1, and LED2 connects K22, and LED3 connects termination power A end after some circuit parallel connections such as K32, the other end connects current-limiting resistance R12 and connects power supply B end, the oscillating circuit III mainly is made up of time-base integrated circuit piece IC and RC network, IC is SE555, its 1 foot connects the B end, meet RC network E place after foot 2 and foot 6 interconnection, foot 7 links to each other with RC network F place, foot 4, connect power supply A end by current-limiting resistance R1 behind 8 mutual connections, reach by current-limiting resistance R3 and connect the F end, and connect power supply B end by filter capacitor C1 and Zener diode D9 respectively, foot 5 connects capacitor C 2 and connects the B end, RC network mainly connects power supply B end by resistor and E end company capacitor C 3 thereof and forms, resistor is that several has the path that the forward and reverse passage of different resistance values constitutes and composes in parallel, the first via is that forward diode D1 connects and connects adjustable resistance W1 and K switch 11 after resistance R 11 and backward diode D2 connect resistance R 10 parallel connections, the second the tunnel is that forward diode D3 connects resistance R 9 and backward diode D4 and connects and connect adjustable resistance W2 after resistance R 8 parallel connections and connect K switch 21, the corresponding some paths of LED circuit in composing quantity and display part II, and K11 wherein, K21 ... respectively with K12, K22 ... corresponding interlock, current-limiting resistance R2 one end of drive part IV is connected with the foot 3 of IC, the base stage of another termination audion BG1, and BG1 connects by the multiple tube form with audion BG2, the colelctor electrode of BG2 connects power supply B end, emitter stage connects the electromagnetic valve V, another termination power A end of electromagnetic valve V, nebulizer (4) is the vapor tight tank that can adorn water liquid, there is a breather line (6) top in jar, its two ends have respectively stretches out jar outer advancing, the gas outlet, other has thin conduit one end to place pot bottom, one end stretches to breather line (6), injector head (7) is a tube, one end has with jet syringe needle (11) and connects firmly the hole, the other end has the pipe joint (12) with working tube (8) cover connection, an intermediary side has and the extraneous side hole (13) that communicates, connect firmly the place, hole at nearly injector head (7) atomizing inlet suction port (9) is arranged, and oxygen cylinder (1) outlet tube connects threeway (2), threeway (2) C end connects nebulizer (4) air inlet with conduit, nebulizer (4) gas outlet connects the inlet suction port (9) of injector head (7) by conduit, the D end of threeway conduit connection solenoid valve V air inlet, the gas outlet of valve V connects jet syringe needle (11) by conduit to be advanced injector head (7) and connects firmly the hole, connects working tube (8) on the other end pipe joint (12) of injector head (7).

2, miniature atomizing oxygen supply breathing equipment according to claim 1 is characterized in that working tube (8) opening splays into blunt pointedly, and conduit (8) is with softish nontoxic silica gel or silicon is moulded or plastics are made.

3, miniature atomizing oxygen supply breathing equipment according to claim 1 and 2 is characterized in that outer being with of working tube (8) can or have the bite-block (5) of lip shelves along the nostril link stopper (3) of its periphery frictional slip.

4, miniature atomizing oxygen supply breathing equipment according to claim 3, it is characterized in that to produce when breathing than 1:2 and provide 20,40,60, best model of the circuit elements device of the respiratory frequency generator (10) of 80 times/minute ventilatory frequencies or parameter are that diode D1-D8 is IN4148, D9 is IN751, resistance R 1(200 Ω), R2(2.8k Ω), R3(4.7k Ω), R4(59.5k Ω), R5(18.4k Ω), R6(78.9k Ω), R7(28.3k Ω), R8(117.7k Ω), R9(47.5k Ω), R10(231k Ω), R11(104.3k Ω), R12(3k Ω), adjustable resistance W1 and W2(47k Ω), W3(10k Ω), W4(4.7k Ω), capacitor C 1(100 μ f), C2(0.01f), C3(10 μ f), audion BG1(9011), BG2(T1P42C), electromagnetic valve is the K23D-1.2-L type, and power supply is 12 volts of unidirectional currents.

5, miniature atomizing oxygen supply breathing equipment according to claim 4 is characterized in that being furnished with the bolster (15) of the elastic band (14) that can compress the patient's neck cricoid cartilage.