CN2079970U - Breath valve - Google Patents

Abstract

The utility model provides a breath valve mainly used for artificial respiration loop of anesthesia inhalation. The utility model is composed of an outer shell, a blocking valve, an exhalation valve, a discharge pipe, an air admission cavity, a blocking cavity, an exhalation cavity, an aeration cavity, etc. The external shape of the outer shell body is of Y shape. The utility model is characterized in that the discharge pipe is arranged between the exhalation cavity and the blocking cavity, the discharge pipe crosses the aeration cavity, the blocking valve is arranged in the blocking cavity, when the utility model is used for assisting breath, the blocking valve can block the opening of the discharge pipe between the opening of an air admission valve and the inner opening of the discharge pipe, and gas is forced into respiratory tracts. Because the utility model abuts against the respiratory tract, the utility model can be used being matched with a breath ball or a circulation closed anesthesia machine and can forming maplesonA, D, E various loops. The utility model is especially suitable for the infant breath anesthesia.

Description

Breath valve

This utility model is a kind of respiration valve, and address is inhaled valve again, can be widely used in medical first aid and suck the semi-open hemicompact of anaesthetizing closing or closing in the circuit system.Be a vitals in a kind of nothing artificial respiration of repeating to suck, this utility model is placed artificial respiration, can control the suction and the exhalation of gas, reach and practice artificial respiration for patient effectively or suck anesthesia.

Wait " modern anaesthesia " write through consulting Liu person of outstanding talent, Chinese Medical Sciences University writes publication " practical Clinical Anaesthesiology ", " the anesthesia respiration loop summary " that Tianjin second central hospital writes, the relevant technologies data such as " respiratory organ and anesthetic machines " that Sun Dajin etc. write, learn to belong to the respiration valve that automatic nothing repeats to suck, only have three kinds at home.One, Ruben respiration valve; Two, fish mouth shape respiration valve; Three, Fink respiration valve.They respectively have excellent, shortcoming, all have suction, exhalation, block three kinds of functions.

One is gone up and made to the obstruction lobe (3) of Ruben respiration valve (accompanying drawing 1) and inlet clack (4) sliding axle (5) that coexists.Pressurize by (accompanying drawing 1) when air-breathing, block lobe (3) and be pushed to the left side simultaneously, open wide air inlet (6), and close and block lobe (3), force gas to pass through pneumostome (7) and enter patient's respiratory tract with inlet clack (4); During expiration (accompanying drawing 2), the elastic force of spring (2) will block lobe (3) and push the right to when the gas pressure low ebb of instantaneous variation, and the pressure of breath is pushed exhalation valve (1) open, and breath is discharged to the atmosphere from outlet.The major defect of Ruben respiration valve is to block lobe (3) to become one with inlet clack (4) and sliding axle, constantly be subjected to the impact of exhaled air flow, human airway secretions constantly sticks to and blocks on lobe mouth and the sliding axle, and transfer on the bearing that supports sliding axle, this is can not open flexibly after the obstruction lobe (3) of Ruben respiration valve blocks, even becomes and lung inner high voltage, the disruptive main cause of alveolar occur.Next is that the rebound elastic force that blocks lobe (3) of spring is relative with the momentum effect direction of expiration, postpones to push to the right as long as block lobe (3), and the expiratory airflow impulse force can force the obstruction lobe tightly to push down expiratory port.This be the Ruben respiration valve in design, the shortcoming that exists on the structure.

Fish mouth shape respiration valve (accompanying drawing 3) is to have suction, exhalation, three kinds of functions of obstruction on same diaphragm (9), promptly sucks, breathes out, blocks three kinds of functions on same diaphragm (9).Be provided with a fish mouth shape lobe mouth in the middle of the diaphragm (9).Accompanying drawing 3 is suction processes, pressurizes when air-breathing, and gas enters fish mouth shape respiration valve from air inlet (8), at first pushes diaphragm (9) open, forces and closes air vent (10), opens fish mouth shape lobe mouth simultaneously, and gas is sent to respiratory tract by pneumostome (11).Accompanying drawing 4 is exhalation processes, during expiration, stops to supply gas, and the gas of exhalation enters fish mouth shape respiration valve from pneumostome (11), at first promotes diaphragm (9) and moves upward, and closes fish mouth lobe mouth simultaneously, and breath is discharged in the atmosphere by outlet (10).Its main shortcoming is that fish mouth shape lobe mouth is not closed completely, and breath backflows, and makes diaphragm (9) pressure at both sides equate that diaphragm can not retreat, and gas can not be breathed out, even pulmonary hypertension, the disruptive accident of alveolar occur.

Fink respiration valve (accompanying drawing 5) is made up of inlet clack (15) and exhalation valve (14) and the epithelium of calming the anger (12), and blocking function is controlled by the epithelium of calming the anger (12) on exhalation valve (14).When pressurization is air-breathing (accompanying drawing 5), gas enters inlet clack (15) from air inlet (16), also makes the inner inflatable of the epithelium of calming the anger (12), compresses and close exhalation valve (14), forces gas to pass through pneumostome (13) and enters respiratory tract.The interior gas pressure of epithelium (12) of calming the anger should could be pushed down exhalation valve (14) effectively greater than aspirated pressure, plays blocking action.Accompanying drawing 6 is the procedure charts of exhaling.The blocking function of Fink respiration valve on exhalation valve (14), the calmed the anger influence of epithelium (12) internal pressure of its function.

The purpose of this utility model is: design a kind of novel respiration valve, the elastic force that overcomes Ruben formula respiration valve spring from structural principle is opposite with exhaled air flow momentum effect direction; The lobe mouth that overcomes the fish mouth type respiration valve is not closed completely, and sucks atmosphere when having autonomous respiration, can not be applied to the shortcoming in the circulating clamping closed type breathing circuit.Reach flap valve and open and close flexibly, the dead space space is little, and respiratory resistance is controlled within the reasonable range, can be applied in the semi open model breathing circuit, also can be applied to close in the formula breathing circuit.

This respiration valve is made up of housing, inlet chamber (30), occlusion lumen (31), venting cavity (26), expiration chamber (22), exhaustor (18), obstruction lobe (29), spring (21), spring (19), exhalation valve (20) etc.Principal character is that the position that exhaustor (18) is provided with is between expiration chamber (22) and occlusion lumen (31), the middle venting cavity (26) of crossing over; Be provided with dividing plate (27) between occlusion lumen (31) and the inlet chamber (30), air inlet lobe mouth (28) is arranged on the dividing plate (27).Insert between air inlet lobe mouth (28) and exhaustor (18) and block lobe (29), exhaustor (18) one sides of blocking lobe (29) are equipped with spring (21).The other end of exhaustor (18) is provided with exhalation valve (20), and spring (19) is arranged on the exhalation valve (20).Dividing plate (17) between venting cavity (26) and the occlusion lumen (31) is gone up porose, makes venting cavity (26) communicate with occlusion lumen (31).Control the range of activity of blocking lobe (29), the distance between exhaustor (18) and the air inlet lobe mouth (28) is controlled in the 1-20 millimeter.

In order to monitor the respiratory pressure of respiratory tract, a pressure monitoring mouth (25) can be set on the shell of venting cavity (26), be connected with Pressure gauge, liquid column gauge etc. by pressure monitoring mouth (25).

In order to improve the sealing of blocking lobe (29), exhalation valve (20), block lobe (29) and exhalation valve (20) and make with the synthetic resin material.

In order to improve the wearability at air inlet lobe mouth (28), exhaustor (18) two ends, prolong the service life of respiration valve, the two ends damascene copper material of air inlet lobe mouth (28), exhaustor (18).

Advantage of the present utility model: exhaustor (18) has been crossed over venting cavity (26), and its end is in expiration chamber (22), and the other end is in occlusion lumen (31).Secretions in the exhaled air flow enters respiration valve with the gas of breathing out, and at first impacts the outer wall of exhaustor (18), and the sticking stifled phenomenon of Ruben respiration valve can not take place.Second advantage, exhaled air flow enters respiration valve, turns to impact to block lobe (29), and the direction that lobe (29) is blocked in gas shock is consistent with the action direction of the elastic force of spring (21), when having overcome exhaled air flow thrust greater than spring force, lung inner high voltage accident appears.The 3rd uses in closing the formula breathing circuit, can adopt breathing bag (24) control breathing that can produce negative pressure, air-breathing non-resistance, and expiratory resistance is little.Reach and open flexibly, close tight.Use with closing in the formula breathing circuit at the semi open model breathing circuit, can both reach satisfied effect of breathing.

What accompanying drawing 1 accompanying drawing 2 was represented is Ruben formula respiration valve;

What accompanying drawing 3 accompanying drawings 4 were represented is the fish mouth type respiration valve;

What accompanying drawing 5 accompanying drawings 6 were represented is Fink formula respiration valve;

Being this utility model respiration valve and being installed in the sketch map that closes in the formula breathing circuit of accompanying drawing 7 expression.Can be used as Figure of abstract.

In conjunction with application accompanying drawing 7, the use situation of this breathing flap valve is described further. When capsule (24) was breathed in extruding, gas pressure forced exhalation lobe (20) to close, and promotes simultaneously to block lobe (29) blast pipe (18) is blocked. Extruded air-flow is walked around obstruction lobe (29) and is entered venting cavity (26), enters the human respiratory tract from venting cavity interface (32). During expiration, stop to squeeze and breathe capsule (24), the air-flow that human body is breathed out enters the breathing flap valve from venting cavity interface (32), at first impacts and blocks lobe (29), under the effect of spring (21) elastic force and expiration impulse force, block lobe (29) and return air inlet lobe mouth (28) downwards. Exhaled air flow impact to block after the lobe (29), enters blast pipe (18) and washes exhalation lobe (20) open, enters expiration chamber (22), through the processing of absorption unit of dioxide carbon (23), adds to get back to behind the oxygen again and breathes capsule (24). When using this breathing flap valve to carry out the first aid breathing, remove absorption unit of dioxide carbon (23), the waste gas of exhalation directly is discharged in the air. During autonomous the breathing, block lobe (29) and only play the effect of suction lobe, open when air-breathing, close during expiration. Block lobe (29) and exhalation lobe (20) cooperation, impel gas unidirectional to flow.

Embodiment: the housing of this respiration valve is to be that 3 millimeters poly (methyl methacrylate) plate is bonded with thickness, and exhalation valve (20), to block lobe (29) be to be 32 millimeters disk with the diameter that transparent film is made.Occlusion lumen (31), venting cavity (26), expiration chamber (22) are cylindric, and intracavity diameter is 38 millimeters, and occlusion lumen (31), expiration chamber (22) inner chamber height are 9 millimeters.Exhaustor (18), air inlet lobe mouth (28) are made with lucite tube, and internal diameter is 20 millimeters, and wall thickness is 2 millimeters.It is 3 millimeters that exhaustor (18) gos deep into occlusion lumen (31), and behind the leap venting cavity (26), other end opening is in occlusion lumen (31).At a distance of 4 millimeters, block lobe (29) and just be installed between exhaustor (18) and the air inlet lobe mouth (28) between exhaustor (18) and the air inlet lobe mouth (28).Expiration chamber (22), venting cavity (26), occlusion lumen (31), inlet chamber (30) all have dividing plate between per two chambeies, and material is to make with the poly (methyl methacrylate) plate of 3 millimeters thick.On dividing plate (27), be stained with air inlet lobe mouth (28).Dividing plate has circular hole on (17), makes venting cavity (26) and occlusion lumen (31) communicate.Connect venting cavity interface (32) and pressure monitoring mouth (25) on the shell of venting cavity (26), this utility model just can be finished a reasonable respiration valve.Receive that to close in the breathing circuit be exactly shown in the accompanying drawing 4.

Claims (4)

1, a kind of respiration valve, form by housing, inlet chamber (30), occlusion lumen (31), venting cavity (26), expiration chamber (22), exhaustor (18), obstruction lobe (29), exhalation valve (20), spring (21), spring (19), it is characterized in that exhaustor (18) is connected between expiration chamber (22) and the occlusion lumen (31), has crossed over venting cavity (26).Insert between air inlet lobe mouth (28) and exhaustor (18) internal orifice and block lobe (29), control is blocked the spring (21) of lobe (29) in exhaustor (18) one sides.On dividing plate (17), through hole is set.Distance between air inlet lobe mouth (28) and exhaustor (18) internal orifice is the 1-20 millimeter.

2, respiration valve as claimed in claim 1 is characterized in that: obstruction lobe (29), exhalation valve (20) are made with the synthetic resin material.

3, respiration valve as claimed in claim 1 is characterized in that: make with copper material at the two ends of air inlet lobe mouth (28) and exhaustor (18).

4, as claim 1,2,3 described respiration valves, it is characterized in that: on the shell of venting cavity (26), be provided with the pressure monitoring mouth.

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