CN100506306C

CN100506306C - Respirator

Info

Publication number: CN100506306C
Application number: CNB2005100851974A
Authority: CN
Inventors: 李清昭
Original assignee: CHONGREN SCIENCE AND TECHNOLOGY UNDERTAKING Co Ltd
Current assignee: Galemed (Xiamen) Medical Equipment Co., Ltd.
Priority date: 2005-07-22
Filing date: 2005-07-22
Publication date: 2009-07-01
Anticipated expiration: 2025-07-22
Also published as: CN1899638A

Abstract

The respirator include one air pipeline connected to air source, one non-return valve, one control valve and one face mask connected to the non-return valve. The non-return valve set in the air pipeline makes air flow only in the direction apart from the air source. The control valve includes one casing to define one back pressure chamber and with one first end connected to the non-return valve and one second end to the air pipeline, one air flow channel between the back pressure chamber and the second end, one manual switch unit for controlling the air flow channel, one pressure relieving channel between the back pressure chamber and the second end and one pressure relieving valve inside the pressure relieving channel.

Description

Respiratory organ

Technical field

The present invention relates to a kind of respiratory organ, particularly relate to the respiratory organ of giving the gas formula a kind of intermittence.

Background technology

As shown in Figure 1, general respiratory organ 1 comprises a feeder 11, a control valve 12 that is connected with feeder 11, and a face shield 13 that is connected with control valve 12.

Feeder 11 comprises a gas cylinder 111, one trachea 112 that is connected with gas cylinder 111, an and connecting portion 113 that is arranged at trachea 112 ends, control valve 12 comprises that a body 121, is extended and the connecting portion 113 banded first pipe portions 122 by body 121 right sides, and second a pipe portion 123 of being extended by body 121 bottom sides.Face shield 13 comprises that one can cover the cover body 131 of patient's oral area, and one be formed on the cover body 131 and with the second pipe portion, 123 banded junction surfaces 132.

Air-breathing and when feeling elated and exultant as the patient, body 121 that all can circulation control valve 12, because control valve 12 internal structures are complicated and bulky, cleaning-sterilizing is difficult for, and control valve 12 is repeated use product, so easily residue in body 121 inside by the spittle that spues in patient's mouth and antibacterial, when next patient used, control valve 12 promptly easily became the media of a pathogen transmission.

Summary of the invention

The object of the present invention is to provide a kind of respiratory organ convenient for cleaning.

Respiratory organ of the present invention is to comprise supply air line, a check valve, a control valve that is linked to gas supply source, and a face shield.This check valve is arranged on this supply air line, can the stream pressure effect order gas in this supply air line towards away from the one-way flow of gas supply source direction; This control valve comprises the housing that defines a back pressure chamber, this housing has hand switch unit, that first end that is communicated with this check valve, second end, that is communicated with this supply air line be arranged at gas flow between this back pressure chamber and this second end, this gas flow break-make of a may command and is arranged at pressure release passage between this back pressure chamber and this second end, and one is arranged in this pressure release passage and the relief valve that can open when the air pressure in this back pressure chamber surpasses certain value; This face shield is communicated with this check valve, can cover for patient's oral area cover; In addition, this check valve comprises a valve body that is connected with this control valve back pressure chamber, reaches one and is arranged on the intravital valve block of this valve, and this valve body has one and leads to extraneous gas bypass road.

Respiratory organ of the present invention, configuration by a jettisonable check valve, the gas switching motion mainly occurred in the check valve when patient was air-breathing and venting one's pent-up feelings, the gas that the patient is spued can not be circulated to control valve, control valve is polluted, make control valve convenient for cleaning, therefore the patient of next use does not worry the misgivings on the safe and sanitary.

Description of drawings

The present invention is described in detail below in conjunction with drawings and Examples:

Fig. 1 is the decomposing schematic representation of general respiratory organ.

Fig. 2 is a decomposing schematic representation of respiratory organ preferred embodiment of the present invention.

Fig. 3 is the top view of a control valve of this preferred embodiment.

Fig. 4 is a cutaway view of being got along the straight line 4-4 among Fig. 3, and the state when a manual switch element is pressed is described.

Fig. 5 is the view of a similar Fig. 4, and the state when this hand switch unit is pressed is described.

Fig. 6 is the exploded view of a check valve of this preferred embodiment.

The specific embodiment

About aforementioned and other technology contents, characteristics and effect of the present invention, in the following detailed description that cooperates with reference to graphic preferred embodiment, can clearly understand.

As Fig. 2, Fig. 3 and shown in Figure 4, the preferred embodiment of respiratory organ of the present invention, be to adopt the therapeutic modality of intermittently giving the gas formula for the patient, respiratory organ of the present invention comprises a feeder 2, is located at the check valve 4 that the control valve 3 on the feeder 2 is communicated with one and control valve 3 respectively, and one is communicated with the face shield 5 that confession patient oral area cover covers with check valve 4.

Feeder 2 comprises a gas cylinder 21 as gas supply source, and one is communicated with in order to air-transmitting supply air line 22 with gas cylinder 21.Control valve 3 comprises cylindrical without exception housing 31, housing 31 has first end 311 that is communicated with check valve 4, and second end 312 that is communicated with supply air line 22, first end 311 of housing 31 defines a back pressure chamber 32 for check valve 4 plants, and define the gas flow 33 that a supplied gas circulates in

second end

312 and 32 of back pressure chambers, and pressure release passage 34, the second ends 312 that lay respectively at the discharge of gas flow 33 2 side supplied gas axially protrude out formation one joints 35 that are communicated with gas flow 33 outwardly.Supply air line 22 1 ends are socketed on the joint 35, and the gas in the gas cylinder 21 can be circulated in the back pressure chamber 32 via gas flow 33 by this supply air line 22.In addition, housing 31 inner surfacies at contiguous first ends 311 places and be provided with a packing ring 313 of using in order to sealed engagement in the back pressure chamber 32.

Housing 31 defines one to be run through and generally is vertical and the containing hole 36 that is communicated with gas flow 33 by outer surface, being provided with one in the containing hole 36 supplies the caregiver to control the hand switch unit 37 of gas flow 33 break-makes, be respectively arranged with one in two pressure release passages 34 and open when the air pressure in the back pressure chamber 32 surpasses certain value and discharge the relief valve 38 of gas, gas flow 33 is with containing hole 36 intersections and define a stop section 361 jointly.The large aperture portion 341, one that each pressure release passage 34 has contiguous second end, 312 places and external communications is located at

back pressure chamber

32 and 341 in large aperture portion and the aperture small-bore portion 342 less than large aperture portion 341, and a detachable current limiting element 343 that is arranged at large aperture portion 341 nearly second end, 312 peritremes, and current limiting element 343 offers an aperture and is expelled to outside relief hole 344 less than large aperture portion 341 aperture supplied gas.

Each relief valve 38 is one to be arranged at the floating ball valve in the large aperture portion 341, it comprises that one is connected to the rubber material bulb stopper 381 of the shoulder 345 that small-bore portion 342 and large aperture portion 341 joints form, and first flexible member 382 that is connected to 381 of current limiting element 343 and bulb stoppers.By the jacking force of first flexible member 382, make bulb stopper 381 can firmly be connected to shoulder 345.

Hand switch unit 37 is the gate valve that a control gas flow 33 is blocked and opened, it comprises that a valve seat 371, that is fixed on containing hole 36 bottoms of housing 31 is arranged at second flexible member 372 on the valve seat 371, and a plug member 373 that is connected to the rubber material of 361 of second flexible member 372 and stop sections.Plug member 373 tops are provided with a manual pressing piece 374 that connects and push for the caregiver with it, and in the present embodiment, first, second flexible member 382,372 is all a compression spring.

When not pushing the manual pressing piece 374 of control valve 3, second flexible member 372 is as shown in Figure 4 a uncompressed state, plug member 373 is subjected to the jacking force of second flexible member 372, and the block of stop section 361, make gas flow 33 be a blocking state, the gas that supply air line 22 is transmitted can't be in gas flow 33 be circulated to back pressure chamber 32.Plug member 373 will be moved towards valve seat 371 directions, second flexible member, 372 stress deformations are as shown in Figure 5 a compressive state, the gas that supply air line 22 is transmitted can be in gas flow 33 be circulated to back pressure chamber 32, and be circulated to face shield 5 via check valve 4, make the patient suck the gas of treatment usefulness.

As shown in Figure 6, check valve 4 comprises a valve body 41 that is connected with control valve 3 and face shield 5, reach a valve block 42 that is arranged in the valve body 41, valve body 41 has first valve body 411 that combines with the back pressure chamber 32 of control valve 3, and one with second valve body 412 that first valve body 411 is screwed also and face shield 5 combines, 42 of valve blocks are arranged between the joint of first valve body 411 and second valve body 412.First valve body 411 comprises a valve casing 413, and one extended and be inserted in connection tube 414 in the back pressure chamber 32 by valve casing 413, connection tube 414 be provided with one can ccontaining packing ring 313 draw-in groove 415, make first valve body 411 can with back pressure chamber 32 airtight joints of control valve 3, second valve body 412 comprises a covers for housing 416 that screws togather with valve casing 413, and one is located at the gas expellant gas by-pass 417 that covers for housing 416 nearside edge places spue for the patient.

When using respiratory organ of the present invention, gas cylinder 21 is to be in opening, and supply gas makes and keeps certain pneumatic supply in the supply air line 22.But when manually pressing piece 374 was not pressed, because the obstruct of plug member 373 makes gas flow 33 be a blocking state, the patient can not suck gas.After treating that manual pressing piece 374 is pressed, gas flow 33 beginning is an opening state, and gas can be flowed through and is circulated to first valve body 411 again behind the back pressure chamber 32, and valve block 42 is subjected to can open under the gas pressure effect and makes gas communication to face shield 5, sucks gas for the patient.But after gas communication to the second valve body 412 that the patient spues, valve block 42 is subjected to can close under the buffer brake effect, makes gas adverse current return first valve body 411, and is expelled to the outside from gas bypass road 417.

In addition, when the gas pressure in the back pressure chamber 32 puts on the jacking force of bulb stopper 381 greater than first flexible member 382, then bulb stopper 381 is driven by the air pressure in the back pressure chamber 32, and produce displacement towards current limliting assembly 343 directions, back pressure chamber 32 interior too high air pressure are disengaged via pressure release passage 34 and relief hole 344, gas pressure in back pressure chamber 32 and first flexible member 382 put on the jacking force of bulb stopper 381 when identical, bulb stopper 381 is connected to big by the jacking force of first flexible member 382, small-bore portion 341, the shoulder 345 that 342 adjacents form and sealing pressure release passage 34 makes the gases in the back pressure chamber 32 can't be expelled to the outside.Therefore, by the configuration of relief valve 38, the air pressure in the back pressure chamber 32 can be kept certain value, and the patient can be received treatment under homogeneous air pressure safely.

Because the patient is air-breathing and when feeling elated and exultant the gas switching motion mainly occur in the check valve 4, and check valve 4 is jettisonable valve bodies in the present embodiment, so, when next patient does not just worry misgivings on the health in use.Again, the gas that the patient spues can not be circulated to control valve 3 by the block of valve block 42, so the spittle that spues in patient's mouth and antibacterial just can not residue in the control valve 3, makes control valve 3 convenient for cleaning.What deserves to be mentioned is that check valve 4 also can be the valve body of repeated use formula, be not limited to present embodiment and disclose.

Conclude above-mentioned, respiratory organ of the present invention, configuration by jettisonable check valve 4, the gas switching motion mainly occurs in the check valve 4 when making the patient air-breathing and venting one's pent-up feelings, the gas that the patient spues can be expelled to the outside and can be circulated to control valve 3 by check valve 4, and control valve 3 is polluted, and makes control valve 3 convenient for cleaning, therefore the patient of next use does not worry the misgivings on the safe and sanitary, can reach the purpose of institute of the present invention demand really.

Claims

1. a respiratory organ comprises one and is linked to the supply air line of gas supply source, and is arranged at a control valve and a face shield on this supply air line respectively; It is characterized in that:

Also comprise one and be arranged at this control valve and this face shield chien shih gas check valve away from the one-way flow of gas supply source direction, this control valve comprises the housing that defines a back pressure chamber, this housing has first end that is communicated with this check valve, one second end that is communicated with this supply air line, one is arranged at the gas flow between this back pressure chamber and this second end, the hand switch unit of this gas flow break-make of one may command, one is arranged at the pressure release passage between this back pressure chamber and this second end, an and relief valve that is arranged in this pressure release passage, in addition, this check valve comprises a valve body that is connected with this control valve back pressure chamber, reach one and be arranged on the intravital valve block of this valve, this valve body has one and leads to extraneous gas bypass road.

2. respiratory organ as claimed in claim 1 is characterized in that: the large aperture portion and that this pressure release passage has contiguous this second end is close to this back pressure chamber and the aperture small-bore portion less than this large aperture portion.

3. respiratory organ as claimed in claim 2 is characterized in that: this pressure release passage is little relief hole in the aperture that this second end place has this large aperture portion of an aperture ratio.

4. respiratory organ as claimed in claim 2 is characterized in that: this pressure release passage is being provided with a dismountable current limiting element in abutting connection with this second end place, and the aperture that this current limiting element has this large aperture portion of an aperture ratio is little relief hole.

5. respiratory organ as claimed in claim 3 is characterized in that: this relief valve comprises that one is connected to the bulb stopper of this small-bore portion peritreme, and first flexible member that is arranged between this relief hole and this bulb stopper.

6. respiratory organ as claimed in claim 1 is characterized in that: this hand switch unit is one to be applied in the gate valve on this gas flow direction.

7. respiratory organ as claimed in claim 6, it is characterized in that: this gate valve comprises that a valve seat, that runs through this gas flow is installed in the plug member that second flexible member, on this valve seat is connected to this second flexible member, and a manual pressing piece that is connected with this plug member.

8. respiratory organ as claimed in claim 1 is characterized in that: this control valve also comprises a joint that is axially protruded out and be connected with this supply air line by this second end.