CN101310784A - High response air controlled trigger mechanism - Google Patents
High response air controlled trigger mechanism Download PDFInfo
- Publication number
- CN101310784A CN101310784A CNA2007103063021A CN200710306302A CN101310784A CN 101310784 A CN101310784 A CN 101310784A CN A2007103063021 A CNA2007103063021 A CN A2007103063021A CN 200710306302 A CN200710306302 A CN 200710306302A CN 101310784 A CN101310784 A CN 101310784A
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- China
- Prior art keywords
- lever
- valve body
- trigger mechanism
- high response
- flip flop
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- 230000007246 mechanism Effects 0.000 title claims abstract description 20
- 230000004044 response Effects 0.000 title claims description 16
- 238000007789 sealing Methods 0.000 claims abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 230000036316 preload Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 abstract description 7
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 16
- 238000001125 extrusion Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 208000004756 Respiratory Insufficiency Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 201000004193 respiratory failure Diseases 0.000 description 1
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Abstract
The invention discloses a high-sensitive gas-controlled trigger device for a pneumatic gas-controlled respirator, which comprises a valve body (1) of the trigger device; a valve cover (12) which is fixedly connected on the valve body (1) of the trigger device; a valve (7) which is clamped between the valve body (1) of the trigger device and the valve cover (12) in a sealing way to commonly limit a sealed space with the valve body (1) of the trigger device; an air inlet connector (3) which is arranged on the valve body (1) of the trigger device, and an air inlet inner mouth (2) is arranged at the inner end of the air inlet connector (3); a respiration connector (4) which connects the inhalation end of a patient and the sealed space; and a lever mechanism which is arranged in the sealed space and at least comprises a lever (10), a first end of the lever (10) is contacted with the valve (7), and a second end can selectively open or close a channel interface of the inner mouth (2). As the device adopts the lever principle, the slight negative pressure generated by the inhalation of the patient is amplified, and the related valve is opened to realize the trigger, thus having very high sensitivity of the device.
Description
Technical field
The present invention relates to a kind of high response air controlled trigger mechanism that is used for the pneumatic gas-control respirator.
Background technology
Pressure activated is a gas control synchronized pulmotor triggering mode commonly used.But because some characteristics of gas control mode, the susceptiveness of trigger is usually unsatisfactory, often needs patient to send and is lower than-10cmH
2The powerful pressure of inspiration(Pi) of O removes to promote valve and produces triggering, thereby realizes the autonomous gas of giving of respirator.But the pressure of inspiration(Pi) of this numerical value also is not easy to accomplish for healthy people.Therefore, this trigger can not satisfy the patient's of respiratory failure desirability, and therefore, clinical value is extremely low.
Summary of the invention
The present invention can realize that for solving low pressure of inspiration(Pi) thereby the valve triggering realizes synchronous problem, and a kind of high response air controlled trigger mechanism is provided, and the pressure signal that patient is faint amplifies, and realizes triggering thereby open related valve.
According to this purpose of the present invention, this device comprises: the flip flop equipment valve body; Valve gap is fixedly connected on the flip flop equipment valve body; Flap valve, clips are located between flip flop equipment valve body and the valve gap, with the common seal cavity that limits of flip flop equipment valve body; Inlet suction port is arranged on the flip flop equipment valve body, and is connected with seal cavity, and the inner of inlet suction port is provided with mouth in the air inlet; And the breathing joint, be used to connect patient's suction end, and be connected with seal cavity; Leverage, leverage are arranged in the seal cavity, and it comprises lever at least, the first end in contact flap valve of lever, second end optionally open or closed air inlet in the channel interface of mouth.
Particularly, leverage also comprises the pole of support lever, this pole one end is fixedly connected on the flip flop equipment valve body, the other end is connected in the lever of leverage rotationally by torsion spring, this torsion spring comprises two parts at least, its part is arranged on the flip flop equipment valve body, and another part connects the lever and the pole of leverage rotationally.
Further, second end of lever is provided with sealing gasket.
In addition, this device also comprises expansion screw, the preload pressure when mouth seals in the lever of its adjustment (adjusting) lever mechanism and the air inlet, and this expansion screw passes the lever and the pole of leverage.
And this device also comprises spring, and this spring is arranged on first end of lever.
In addition, valve gap is provided with a plurality of through holes that communicate with outside atmosphere.
And mouth is an integral body in inlet suction port and the air inlet, and perhaps, replacedly, inlet suction port is bonded together by being threaded with the interior mouth of air inlet.
Wherein, flap valve is made by silica gel.
Because it is this device has adopted lever principle, that the slight negative pressure that patient inhales produces is (about-3cmH
2About O) amplify, realize triggering thereby open related valve, therefore, this device has very high susceptiveness.Owing to designed adjustable mechanism, therefore in batch production process, revised the individual variation in the production process, thereby can be transferred to consistent high sensitivity.
Description of drawings
Accompanying drawing constitutes the part of this description, is used to help further understand the present invention.These accompanying drawings illustrate some embodiments of the present invention, and are used for illustrating principle of the present invention with description.Identical in the accompanying drawings parts are represented with identical label.Wherein:
Fig. 1 is the front view that illustrates according to gas control flip flop equipment of the present invention;
Fig. 2 is the vertical view after flap valve and the valve gap of removing that illustrates according to gas control flip flop equipment of the present invention;
Fig. 3 illustrates the auxiliary work schematic diagram of gas circuit of use according to gas control flip flop equipment of the present invention; And
Fig. 4 is the enlarged drawing that frequency generation valve shown in Figure 3 is shown.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the invention is elaborated.
Fig. 1 is the front view that illustrates according to gas control flip flop equipment of the present invention.Fig. 2 is the vertical view after flap valve and the valve gap of removing that illustrates according to gas control flip flop equipment of the present invention.
As shown in Figure 1, a kind of high response air controlled trigger mechanism that is used for the pneumatic gas-control respirator, this device comprise mouth 2 in flip flop equipment valve body 1, the air inlet, inlet suction port 3, breathe joint 4, pole 5, flap valve 7, spring 8, torsion spring 9, lever 10, sealing gasket 11, valve gap 12 and adjustment screw 13.
Flip flop equipment valve body 1 is the body of this device, its with valve gap 12 by being threaded.Flap valve 7 is clamped between them by being connected between flip flop equipment valve body 1 and the valve gap 12, thereby forms a seal cavity between flip flop equipment valve body 1 and flap valve 7.Mouth 2 is arranged on a side of flip flop equipment valve body 1 in the air inlet, is provided with the hole 211 (being channel interface) that is connected with above-mentioned seal cavity in it.Mouth 2 is to connect the passage that pressure discharges in the air-channel system in this air inlet.Inlet suction port 3 is connected in the air inlet on the mouth 2 (for example, by being threaded), thereby makes seal cavity and external communications between flip flop equipment valve body 1 and the flap valve 7.Replacedly, inlet suction port 3 can be integrally formed with mouth in the air inlet 2.In this air inlet mouth 2 above be provided with lever 10.This lever 10 is supported by pole 5.One end of pole 5 is fixedly connected on flip flop equipment valve body 1 by cross recessed countersunk head sscrew 6, and the other end is connected with lever 10 rotationally by torsion spring 9.Wherein, the both sides of an end of this lever 10 are respectively arranged with the lug of giving prominence to from this lever 10 101, and this lug 101 is provided with through hole.And an end of pole 5 also is provided with through hole, the part of torsion spring 9 is passed through hole on the lug 101 of lever 10 and the through hole on the pole 5 and lever 10 is connected with pole 5, play a supporting role, and this lever 10 and pole 5 can be rotated around the part of this torsion spring 9.Another part of this torsion spring 9 is arranged on the flip flop equipment valve body 1.One end perk of lever 10 contacts with flap valve 7, is stained with sealing gasket 11 on its other end.Wherein, be provided with spring 8 by a end in these lever 10 perks.By the other end of these spring 8 extrusion levers 10, thereby make mouth 2 tight seals in sealing gasket 11 and the air inlet on the lever 10.
Also be provided with on the flip flop equipment valve body 1 of this device and breathe joint 4, be used to connect the patient inhales end, this breathing joint 4 leads to the seal cavity (being inner chamber) of flip flop equipment valve body 1.
As depicted in figs. 1 and 2, also be provided with expansion screw 13 on lever 10 and pole 5, it passes lever 10 and pole 5.Pre-pressing force when this expansion screw 13 is used for mouth 2 sealings in sealing gasket 11 and the air inlet on the adjustment (adjusting) lever 10 is so that guarantee that pressure is at-3cmH
2Can opening encapsulation during the O left and right sides, thus realize that pressure discharges.
Wherein, flap valve 7 adopts silica gel to make, and hardness is suitable.When patient inhales when flip flop equipment valve body 1 inner chamber produces negative pressure, flap valve 7 can deform and move down extrusion lever 10, make an end perk that is provided with sealing gasket 11 of lever 10, make interior mouth 2 of air inlet and sealing gasket 11 break away from, thereby, make flip flop equipment valve body 1 communicate with outside gas circuit by mouth 2 in the air inlet and inlet suction port 3.
And, be used for that the height of spring 8 of support lever 10 1 ends and elasticity will design suitably, make that it can support lever 10, can under the faint suction of patient, drive flap valve 7 again and depress lever 10.
Wherein, valve gap 12 is provided with a plurality of through holes 121, and this through hole 121 communicates with outside atmosphere, thereby helps when air-breathing, and flap valve 7 moves down and an end of extrusion lever 10 perks.Certainly, also can tighten valve gap 12, thereby make tight connection between flip flop equipment valve body 1 and the valve gap 12 by these a plurality of through holes.
Fig. 3 illustrates the auxiliary work schematic diagram of gas circuit of use according to gas control flip flop equipment of the present invention.
As shown in Figure 3, compressed oxygen enters pressure maintaining valve 14 and carries out pressure control by managing 14 from air source inlet A, enters frequency generator D by managing 15, divides two-way from managing 16 backs of coming out, one the tunnel is that main road is through managing 18, the direct supply to patient after the air volume regulating valve G current limliting of making moist.This be the active of machine supply with air-breathing.Carrying out along with air-flow, another road gas is subjected to enter among the frequency generation valve D through pipe 19 after the frequency adjustment valve F current limliting through pipe 17 again, As time goes on, get more and more from managing 19 gases that enter frequency generation valve, pressure is more and more higher, spool among the frequency generation valve D is pushed the right side to the most at last, thereby the ventilation between blocking tube 15 and 16 so far enters breathing process.If during this period, patient has autonomous air-breathing consciousness, patient is air-breathing from the breathing joint 4 of this high response air controlled trigger mechanism E, because flip flop equipment valve body 1 inner chamber sealing, therefore, the negative pressure that patient inhales produces can drive flap valve 7 and be out of shape downwards, thereby the perk end of extrusion lever 10, the sealing gasket 11 at lever 10 other end places is lifted, make interior mouth 2 of air inlet and sealing gasket 11 break away from, thereby inlet suction port 3 place's air-flows and breathing joint 4 places air-flow conducting (being pipe 20 and 21 conductings of the flip flop equipment E shown in Fig. 3), thereby the air pressure in frequency generation valve D left side reduces rapidly, make the spool 22 (as shown in Figure 4) of this frequency generation valve D be moved to the left, reclose between managing 15 and 16 like this, and carry out the air-breathing of a new round.
This device produces negative pressure (this pressure is generally at-3cmH from breathing joint 4 when faint air-breathing of patient
2About O), driving flap valve 7 is out of shape downwards, and the perk end of extrusion lever 10, thereby make the sealing gasket end of lever 10 lift, cause mouth 2 and sealing gasket 11 disengagings in the air inlet, thereby inlet suction port 3 place's air-flows with breathe joint 4 places air-flow conducting, realized that gas opens release, cooperate outside gas circuit to realize triggering ventilation then.
This device is by adopting lever principle, and the pressure signal that patient is faint amplifies realizes finishing of action, so very high susceptiveness is arranged.
In order to produce in batches, revise the individual variation in the production process, also design adjustable mechanism (expansion screw 13) especially, thereby can regulate the pretightning force between interior mouth 2 of air inlet and the sealing gasket 11, thereby can be transferred to consistent high sensitivity.
Be the preferred embodiments of the present invention only below, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.All any modifications of being done within the spirit and principles in the present invention, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a high response air controlled trigger mechanism is used for the pneumatic gas-control respirator, and described device comprises:
Flip flop equipment valve body (1);
Valve gap (12) is fixedly connected on the described flip flop equipment valve body (1);
Flap valve (7), clips are located between described flip flop equipment valve body (1) and the described valve gap (12), limit a seal cavity jointly with described flip flop equipment valve body (1);
Inlet suction port (3) is arranged on the described flip flop equipment valve body (1), and is connected with described seal cavity, and the inner of described inlet suction port (3) is provided with mouth (2) in the air inlet; And
Breathe joint (4), be used to connect patient's suction end, and be connected with described seal cavity;
Leverage, described leverage are arranged in the described seal cavity, and it comprises lever (10) at least, the described flap valve of first end in contact (7) of described lever (10), second end optionally open or closed described air inlet in the channel interface of mouth (2).
2. high response air controlled trigger mechanism according to claim 1, it is characterized in that, described leverage also comprises the pole (5) of supporting described lever (10), described pole (5) one ends are fixedly connected on described flip flop equipment valve body (1), and the other end is connected in the lever (10) of described leverage rotationally by torsion spring (9).
3. high response air controlled trigger mechanism according to claim 1 and 2 is characterized in that, described second end of the lever of described leverage (10) is provided with sealing gasket (11).
4. high response air controlled trigger mechanism according to claim 2, it is characterized in that, described device also comprises expansion screw (13), preload pressure when its lever (10) of regulating described leverage seals with the interior mouth (2) of described air inlet, described expansion screw (13) passes the lever (10) and the pole (5) of described leverage.
5. high response air controlled trigger mechanism according to claim 1 is characterized in that, described device also comprises spring (8), and described spring (8) is arranged on first end of the lever (10) of described leverage.
6. high response air controlled trigger mechanism according to claim 2, it is characterized in that, described torsion spring (9) comprises two parts at least, and its part is arranged on the described flip flop equipment valve body (1), and another part connects the lever (10) and the pole (5) of described leverage rotationally.
7. high response air controlled trigger mechanism according to claim 1 is characterized in that, described valve gap (12) is provided with a plurality of through holes (121) that communicate with outside atmosphere.
8. high response air controlled trigger mechanism according to claim 1 is characterized in that, described inlet suction port (3) is an integral body with the interior mouth (2) of described air inlet.
9. high response air controlled trigger mechanism according to claim 1 is characterized in that, described inlet suction port (3) is bonded together by being threaded with the interior mouth (2) of described air inlet.
10. high response air controlled trigger mechanism according to claim 1 is characterized in that, described flap valve (7) is made by silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710306302 CN100577231C (en) | 2007-12-28 | 2007-12-28 | Highly sensitive air-controlled trigger device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710306302 CN100577231C (en) | 2007-12-28 | 2007-12-28 | Highly sensitive air-controlled trigger device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101310784A true CN101310784A (en) | 2008-11-26 |
| CN100577231C CN100577231C (en) | 2010-01-06 |
Family
ID=40099736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710306302 Active CN100577231C (en) | 2007-12-28 | 2007-12-28 | Highly sensitive air-controlled trigger device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100577231C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101766862A (en) * | 2008-12-26 | 2010-07-07 | 北京谊安医疗系统股份有限公司 | Control change-over valve for anaesthesia machine |
| CN101940809A (en) * | 2009-07-06 | 2011-01-12 | 北京谊安医疗系统股份有限公司 | Anesthesia apparatus and ventilation mode changing device thereof |
| CN101507852B (en) * | 2009-03-23 | 2011-04-20 | 王中 | Pneumatic pressure low-pressure alarming device |
| CN116370769A (en) * | 2023-06-07 | 2023-07-04 | 深圳市普博医疗科技股份有限公司 | A ventilation device, method and storage medium |
-
2007
- 2007-12-28 CN CN 200710306302 patent/CN100577231C/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101766862A (en) * | 2008-12-26 | 2010-07-07 | 北京谊安医疗系统股份有限公司 | Control change-over valve for anaesthesia machine |
| CN101766862B (en) * | 2008-12-26 | 2013-03-06 | 北京谊安医疗系统股份有限公司 | Control change-over valve for anaesthesia machine |
| CN101507852B (en) * | 2009-03-23 | 2011-04-20 | 王中 | Pneumatic pressure low-pressure alarming device |
| CN101940809A (en) * | 2009-07-06 | 2011-01-12 | 北京谊安医疗系统股份有限公司 | Anesthesia apparatus and ventilation mode changing device thereof |
| CN101940809B (en) * | 2009-07-06 | 2013-12-04 | 北京谊安医疗系统股份有限公司 | Anesthesia apparatus and ventilation mode changing device thereof |
| CN116370769A (en) * | 2023-06-07 | 2023-07-04 | 深圳市普博医疗科技股份有限公司 | A ventilation device, method and storage medium |
| CN116370769B (en) * | 2023-06-07 | 2023-08-22 | 深圳市普博医疗科技股份有限公司 | Ventilation device, method and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100577231C (en) | 2010-01-06 |
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