CN2188392Y

CN2188392Y - Pneumatic time phase oxygen supply regulating valve

Info

Publication number: CN2188392Y
Application number: CN 93242614
Authority: CN
Inventors: 宋国强
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-10-25
Filing date: 1993-10-25
Publication date: 1995-02-01
Anticipated expiration: 2003-10-25

Abstract

The utility model relates to medical equipment which controls an oxygen supply pipeline and supplies oxygen according to a patient's breath, particularly a pneumatic time phase oxygen supply regulating valve which solves the synchronous problem of the patient's breath and oxygen supply. In addition, 50 percent of oxygen is saved. The utility model is a double channel pipe fitting. A valve clack which can change position following breath pressure is arranged on an exhalation channel. The valve clack is linked with a valve inserting plate, a valve hole, and a spring. Airflow impels the valve clack in the course of exhalation to lead the valve inserting plate to close an oxygen supply channel. The spring leads the valve clack to move upwards in the course of inhalation to open the oxygen supply channel. Oxygen is blown into a mask. The process is repeated, so the purposes that inhalation supplies oxygen and exhalation stop supplying oxygen can be achieved.

Description

Pneumatic time phase oxygen supply regulating valve

This utility model relates to a kind of armarium.Particularly a kind of can be when giving patient's oxygen supply, control oxygen supply mutually when breathing, play air-breathing oxygen supply, phase oxygen supply mediation valve device when exhaling the pneumatic type that stops oxygen supply.

Existing is that high-pressure air source reduces pressure through flow meter, directly is defeated by patient behind the adjustment flow to patient's method for supplying oxygen.Be regardless of and continue to be blown into oxygen when breathing mutually.This is inappropriate on physiology of respiration.People's breathing can be divided into air-breathing with exhale two the time mutually.Its time ratio is about suction and equals 2:3 than exhaling.Present oxygen supply method is by nasal obstruction or insert the pharyngeal conduit oxygen supply of patient, and the oxygen of inflow is pressed and is higher than atmosphere, can improve the concentration that patient sucks oxygen, is an important method of treatment respiratory insufficiency.The patient of this lasting oxygen uptake has consumed a large amount of oxygen in hospital.Existing method for supplying oxygen has two shortcomings.The one, airway resistance increases when exhaling, and waste gas is discharged add to the difficulties.The 2nd, lose a large amount of oxygen.The time reckoning that takies with expiration only, about 50% oxygen wave in vain are useless.Retrieved since 85 years the Chinese patent communique and do not see that the record of similar Patent project bulletin is arranged.

The purpose of this utility model provides phase oxygen supply mediation valve when a kind of.It can play oxygen supply when air-breathing, stops the purpose of oxygen supply during expiration.

The purpose of this utility model is finished in the following way: this device is a twin-channel pipe fitting, is divided into oxygen supply road and expiration road.Change but in the expiration road, be provided with a perception breath pressure, and do corresponding mobile valve block.This valve block comprises flap and valve plate two parts.Back-moving spring of valve block below socket.The valve plate is inserted in the oxygen supply road, the switching in may command oxygen supply road.This device connect the face shield end, the air pressure change that produces in the patient respiration process can form two baric areas of A, B.The zone of positive pressure of A district for exhaling and forming; The negative pressuren zone that forms when the B district is air-breathing.After inserting this device between patient respiration face shield and the oxygen supply pipe, during patient inhales, oxygen supply mediation valve A district's hypotension, the flap connection is mentioned under the effect of spring with the valve plate, has opened the oxygen supply road, and oxygen is sprayed onto the B district.Air inlet sucks the part air simultaneously, and patient is drawn onto oxygen and Air mixing gas.When patient exhales, the pressure in oxygen supply mediation valve A district raises, and the flap connection moves down with the valve plate, has closed the oxygen supply road, and waste gas is breathed out by air vent.Respiratory reciprocating action like this under the effect of mediation valve, has reached the purpose that air-breathing oxygen supply expiration stops oxygen supply.

This utility model compared with prior art, under the state of general mask oxygen-inspiration, phase oxygen supply mediation valve device when having added a pneumatic type.This device has played air-breathing oxygen supply in the patient respiration process, exhale to stop the effect of oxygen supply.Make the process of oxygen supply meet the physiology of respiration needs, reduced expiratory resistance, saved 50% oxygen simultaneously.

Concrete structure of the present utility model is provided by the following drawings and embodiment.

The whole profile of transferring was reconciled in the phase oxygen supply when Fig. 1 was the pneumatic type that the utility model proposes.

Fig. 2 is a valve block side view of the present utility model.

Fig. 3 is this utility model suction condition sketch map.

Fig. 4 is this utility model expiration view.

Below in conjunction with Fig. 1,2,3 and 4, describe concrete structure of the present utility model and embodiment situation in detail.

With reference to Fig. 1,2, this utility model is made up of following primary structure.Valve body (1) forms with the transparent hot pressing notes type of moulding firmly, is a column type pipe fitting that binary channel is arranged, and is about 7 centimetres, 2.5 centimetres of diameters; The upper end is 2.5 centimetres of mask interface (9) external diameters; The lower end is oxygen interface (11), and external diameter is 0.4 centimetre.On the oxygen supply road (11) of valve body (1), there is not oxygen jet (3), 0.3 centimetre of internal diameter; 0.8 centimetre of air intake (4) diameter.1.5 centimetres of valve body (1) expiration road (5) diameters; Air vent (10), 0.8 centimetre of diameter.Be provided with valve body in expiration road (5), bag is inserted flap (2) and valve plate (7) two parts.Flap (2) is by the hard plastomer that has a cylinder to link in the middle of two disks, and section is " I " font; 1.6 centimetres of flap diameter 1.4 centimeter length.The valve plate (7) that is connected on the flap (2) is wide 0.6 centimetre, and long 20 centimetres, thick 0.15 centimetre.At valve plate (7) spring (6) that valve block is resetted of having gone up socket.Valve plate (7) is inserted into downwards in the oxygen supply road (11), and a valve opening (8) is arranged on its corresponding position, 0.4 centimetre of diameter.

The operation principle that the phase oxygen supply is reconciled during pneumatic type is with reference to Fig. 3,4.Phase when Fig. 3 is air-breathing.A district pressure is low when air-breathing, and flap (2) is carried under the effect of spring.Valve opening (8) on the valve plate (7) is just opened oxygen road (11), and oxygen sprays to the B district, has air to enter from air intake (4) simultaneously, forms mist in the B district, and patients sucks.Phase when Fig. 4 is expiration, A district pressure raises during expiration, and flap (2) moves down, and valve plate (7) has sealed the oxygen supply road, and oxygen stops to supply with and stops up to expiration.When the hypotension of A district, begin next phase when air-breathing, when pressure is lower than atmospheric pressure, on spring (6) effect lower Disc, to carry, the oxygen road is opened again.The purpose of phase when so having reached the control oxygen supply repeatedly.

Claims

1, control patient oxygen supply pipeline, phase oxygen supply mediation valve during the pneumatic type of phase oxygen supply when particularly pressing patient respiration, this device is a dual pathways pipe fitting, the upper end joins with breathing mask, lower end and oxygen supply pipe join, it is characterized in that two gas passages are arranged in the valve body (1), being equipped with in the expiration road can be with the valve block of breathing the air pressure shift position, and the valve plate (7) on the valve block is inserted in the oxygen supply road (11); Valve block is subjected to spring (6) control, closes air vent (10) when air-breathing.

2, phase oxygen supply mediation valve during pneumatic type according to claim 1 is characterized in that valve body (1) is made up of the gas passage of two parallel connections; On oxygen supply road (11), be provided with oxygen jet (3) and air intake (4); In expiration road (5), be provided with air vent (10).

3, phase oxygen supply mediation valve during pneumatic type according to claim 1 is characterized in that valve block, is made up of flap (2) and valve plate (7); Valve block is subjected to spring (6) control and air pressure change shift position when breathing; Valve plate (7) on the valve block is inserted in the oxygen supply road (11).