CN2298817Y

CN2298817Y - Jetting aerial fog distributary atomizer

Info

Publication number: CN2298817Y
Application number: CN 96213770
Authority: CN
Inventors: 胡范彬; 王苏民; 张树才
Original assignee: Beijing Tuberculosis and Thoracic Tumor Research Institute
Current assignee: Beijing Tuberculosis and Thoracic Tumor Research Institute
Priority date: 1996-06-20
Filing date: 1996-06-20
Publication date: 1998-12-02
Anticipated expiration: 2006-06-20

Abstract

The utility model relates to a medical jet splitting atomizer using oxygen as a driving source. The medical jet splitting atomizer is composed of an oxygen ejecting tube, a liquid storage tank, a liquid guiding tube, a splitting baffle, an aerial fog outlet tube, an aerial fog jetting tube, a bent tube, a liquid collecting tube and a liquid recovering tube which are connected into a whole tightly. The medical jet splitting atomizer is characterized in that the center of the spherical baffle of the medical jet splitting atomizer is provided with a small hole corresponding to the small hole of the oxygen ejecting tube and connected with the bent tube simultaneously, and a liquid reflux device is additionally arranged; by the improved splitting device, the controllable oxygen supply can be achieved, and the oxygen concentration is less than 40%. The damage caused by the high concentration oxygen to the human body can be avoided. The range for clinical application can be enlarged.

Description

Injecting type aerosol shunting nebulizer

This utility model belongs to medical instruments field.The medicine inhalation therapy device that the definite clinical treatment respiratory system disease of saying so is adopted.

At present, mainly be two kinds in ultrasound atomizer and injecting type nebulizer both at home and abroad to the suction therapeutic equipment that respiratory system disease adopted, nebulizer is divided into the empty and oxygen spray formula nebulizer of compression again according to the difference of drive source.

Ultrasound atomizer need be used by the source, and volume is big, and sterilization inconvenience is so limited clinical popularizing.

With the compressed air is the nebulizer of drive source, and volume is big, and complex structure need be set up special aerosol therapeutic room, is suitable for the control that general hospital carries out extensive respiratory tract disease.The nebulizer volume that with oxygen is drive source is little, simple in structure, as long as there is the place of oxygen cylinder just can use, more advantageously this complete equipment can be changed at any time.Can prevent cross infection in the hospital like this.But what needs were full and clear is, what adopted clinically at present is the nebulizer of drive source with oxygen, its action principle is when utilizing high velocity air to pass through the pore nozzle, around it, produce negative pressure, liquid is come (being the Ventur effect) from hopper in capillary attraction, travel forward with air-flow, and impinge upon the plate washer formation aerosol in the place ahead.Gas (oxygen) mixes mutually with the formed droplet of liquid, through same passage, sucks in the lung with human body respiration.Unreasonable just because of this kind device design at present, the actual high concentration oxygen (being about 60% above oxygen concentration) that sucked of patient more makes this equipment forbidden merge the patient of hypercapnia in hypoxemia.Reason is that this patient sucks and can increase the weight of carbon dioxide behind the high concentration oxygen and store, and causes easily that patient goes into a coma, death; In addition, also need the careful thoracic postop patient that is used for, the flushable alveolar of high concentration oxygen makes nitrogen minimizing in the alveolar, and it is unbalance that nitrogen-oxygen takes place, and is prone to the depletion of QI pulmonary atelectasis.Suck high concentration oxygen, also can obviously suppress the ciliary movement of trachea-bronchia mucosa, reduce the ability of cleaning up of air flue and the phagocytic function of the interior macrophage of alveolar.Find in the clinical practice that the patient of 40-60% uses this device and headache, dizzy symptom occur.This distends the blood vessels relevant with high concentration oxygen.Most scholars think that controlled oxygen supply (concentration is less than 40%) can not cause the infringement of oxygen to human body.

It is the injecting type aerosol shunting nebulizer of drive source with oxygen that the purpose of this utility model is to provide a kind of, accomplishes controlled oxygen supply, avoids the infringement of high concentration oxygen to human body.

(1) this nebulizer is by oxygen induction tunnel, receiver, liquid guiding tube, shunting plate washer, fog intake system, and oxygen discharges system and the liquid return system forms.After high velocity air passed through the induction tunnel aperture, gas was conical and flows, and its expansion angle is that 6-8 liter/timesharing aerosol, particles is l-5um for the 6-l2 degree drives oxygen flow, is ideal atomized particles.Design one aperture on this nebulizer cylindrical bulbous shape plate washer, make main body air-flow (oxygen) thus passage enter atmosphere, droplet sucks in the lung with human body respiration by another passage, has reduced the actual concentration of oxygen inhalation of patient.

During (2) owing to shunting oxygen, contain small amount of liquid simultaneously, this nebulizer also is provided with a liquid return system, the liquid drain can be reclaimed, once more atomizing.Below in conjunction with accompanying drawing to this novel being described in further detail.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 and Fig. 3 face and the plan structure sketch map for this utility model shunting plate washer.

In receiver 2 centers, closely connect oxygen induction tunnel 1 as shown in Figure 1, manage to cylindrical, be the pipeline of delivering oxygen, there is an injection aperture centre, by aperture injection oxygen.Overlap liquid guiding tube 3 again with inserted mode outside the oxygen induction tunnel, its center, cylinder top has an aperture corresponding with oxygen induction tunnel aperture, but liquid is around aperture in the drain receiver, and the liquid guiding tube bottom is apart from receiver bottom 0.2-1.5mm.Shunting plate washer 4 (being Fig. 2) is made up of cylindrical bulbous shape plate washer support two parts.There is an aperture at spherical plate washer center, and corresponding with the liquid guiding tube aperture, the plate washer support is a wheel shape structure.When swiftly flowing droplet collides spherical plate washer, the droplet volume is reduced, form aerosol, shunting plate washer central aperture can make swiftly flowing oxygen separate with aerosol by entering swan-neck 7.Be connected an aerosol effuser 5 with inserted mode again above the shunting plate washer, it is made up of two cylindrical tube of size, can carry aerosol to aerosol jet pipe 6, and it is to be connected in aerosol effuser top with inserted mode.The aerosol jet pipe has up and down two cylindrical tube, at an end of big column two corresponding breach is arranged, and is used for fixing fluid collection tube 8, and the corresponding position with small column of cylinder central authorities has the 2.5-4mm aperture to be used for swan-neck 7 to pass through.Swan-neck is that L type or arc pipe can make swiftly flowing oxygen gas flow rate slow down, the entrained droplet of delivering oxygen is to fluid collection tube 8, it is made up of two cylindrical tube of size, simultaneously be connected one with inserted mode with aerosol jet pipe 6, swan-neck 7 and liquid recovery tube 9, its effect is the droplet of collecting with flow of oxygen, and circular hole can make noise reduce.The below liquid recovery tube 9 that is positioned at the fluid collection tube small sircle hole is coupled with inserted mode, L-shaped, and effect is to feed back liquid to receiver.

This utility model clinical application range enlarges, and the actual oxygen uptake of patient can reach controlled oxygen supply (concentration is less than 40%), has avoided the harm of high concentration oxygen to human body.Simple in structure, easy to use, be applicable to extensive respiratory tract disease preventing and controlling.

Claims

1, a kind of medical be the injecting type aerosol shunting nebulizer of drive source with oxygen, it closely connects one by oxygen induction tunnel, receiver, liquid guiding tube, shunting plate washer, aerosol effuser, aerosol jet pipe, swan-neck, fluid collection tube, liquid recovery tube, it is characterized in that there is an aperture in the cylindrical bulbous shape plate washer central authorities of nebulizer.This hole is corresponding with oxygen induction tunnel aperture, is connected with swan-neck again simultaneously.

2, according to the described injecting type aerosol shunting of claim nebulizer, its feature is at fluid collection tube and aerosol jet pipe, and swan-neck and liquid recovery tube are pegged graft and be connected as a single entity.