CN102114300A - PEEP (positive end expiratory pressure) valve and respirator with same - Google Patents
PEEP (positive end expiratory pressure) valve and respirator with same Download PDFInfo
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- CN102114300A CN102114300A CN2009102175847A CN200910217584A CN102114300A CN 102114300 A CN102114300 A CN 102114300A CN 2009102175847 A CN2009102175847 A CN 2009102175847A CN 200910217584 A CN200910217584 A CN 200910217584A CN 102114300 A CN102114300 A CN 102114300A
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- respirator
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- ring
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Abstract
The invention provides a PEEP (positive end expiratory pressure) valve and a respirator with the same. The PEEP valve is characterized in that one end of the PEEP valve is connected with a pipeline exhalation opening of the respirator and the other end of the PEEP valve is connected with the inlet end of an exhalation valve; the PEEP valve comprises a valve body (3) which is formed in the way that gas channels between the pipeline exhalation opening of the respirator and the inlet end of the exhalation valve are communicated via gases under predetermined pressure; and the predetermined pressure is adjusted by a linear pressure adjusting device. The PEEP valve can be completely independent of the respirator system to work, so the design idea of the respirator can be no longer restrained by the conditions of the PEEP valve and meanwhile the respirator without PEEP function has the PEEP function under the premise of not changing the respirator, thus elevating the grade of the respirator and expanding the clinical use range, greatly improving the quality of the respirator, lowering the cost and bringing great benefits to the respirator manufacturers and users.
Description
Technical field
The present invention relates to a kind of PEEP (positive end expiratory pressure, positive end expiratorypressure) valve, specifically, relate to a kind of external PEEP valve that is used on the employed respirator of medical field.In addition, the invention still further relates to a kind of respirator with this PEEP valve.
Background technology
Respirator has been widely used in medical treatment, and PEEP has special clinical meaning as a kind of special treatment function that is used for respirator.Respirator still keeps certain malleation by the PEEP valve at expiration mutual-assistance air flue, thereby acting as of PEEP struts and the internal fixation alveolar, avoid little air flue to subside ahead of time latter stage venting one's pent-up feelings, and the alveolar that subsides is expanded once again, and then increase alveolar, alveolar and blood capillary contact area are strengthened, to increase the effect of diffusion and oxygenate, improve the phenomenon of ventilation perfusion inequality, allow pulmonary's moisture content redistribution (moisture content too much can reduce gas exchange) improve intra-alveolar edema, and can offset the pressure differential of Auto-PEEP, and reduce respiratory work.The physiological effect of PEEP has: increase function lung covolume amount (FRC); Improve elastance of lung coefficient (Lung compliance); Improve Oxygenation (Oxygenation); Reduce QS pulmonary shunt (shunting).
Therefore whether have the PEEP function and become performance indications judging whether respirator meets clinical needs, and at present existing technology be the control of PEEP and realization all provide electromagnetic force or source of the gas to control and realize by the respirator main frame, this is not easy to realize to pneumatic automatically controlled respirator that pneumatic gas-control respirator and single gas circuit drive.
Thereby present respirator has following defective, that is:
Because existing P EEP valve needs the support of the system dynamic of respirator, thereby for if will realize the PEEP function, then when the design of respirator, will consider the design of PEEP valve, thereby make the mentality of designing of respirator be subjected to the constraint of the condition of PEEP valve, thereby bring severely restricts to production, and increased the cost of armarium.
In addition, because existing P EEP valve needs the support of the system dynamic of respirator, thereby for the existing respirator that does not have the PEEP function, if will realize the PEEP function, then need the structure of existing respirator is carried out bigger change, thereby make that the improvement cost of existing respirator is higher, limited the lifting and the clinical scope of application of the class of respirator, be unfavorable for the raising of the quality of respirator.
Summary of the invention
The present invention is devoted to overcome the above-mentioned defective of prior art just and makes.The respirator that the objective of the invention is to propose a kind of PEEP valve and have this PEEP valve, described PEEP valve does not need the support of respirator system power, and can the manual adjustments size.
According to an aspect of the present invention, a kind of PEEP valve is provided, an a kind of end of PEEP valve is used to connect the pipeline exhalation vents of respirator, the other end is used to connect the inlet end of outlet valve, the PEEP valve comprises: valve body, the pipeline exhalation vents that valve body is arranged to make respirator is communicated with gas passage gas ground under predetermined pressure between the inlet end of outlet valve, and wherein, predetermined pressure is regulated by the line pressure adjusting device.
Preferably, the line pressure adjusting device comprises: spring base, and it is arranged on the step on the valve interior surface; Spring, it presses on the spring base, thereby be communicated with so that make during greater than predetermined pressure spring base separate gas passage with step, thereby and make spring base engage gas passage at the intravital gas pressure of valve during less than predetermined pressure to close with step at the intravital gas pressure of valve.
Preferably, the line pressure adjusting device further comprises: back-up ring, back-up ring are connected on the valve body, and back-up ring is provided with the duct that is communicated with gas passage, and back-up ring is used for alligator clamp between back-up ring and spring base.
Preferably, back-up ring is by being threadedly connected on the valve body, thus by the axial location of regulating back-up ring the pressure of regulating spring linearly.
Preferably, according to pressure and the relation of the axial displacement of back-up ring, on the back-up ring outer surface, pressure scale is set.
Preferably, the PEEP valve further comprises: connecting cylinder, connecting cylinder are connected in valve body hermetically.
Preferably, connecting cylinder is provided with the pipeline exhalation vents of respirator and carries out the concavo-convex structure that cooperates.
Preferably, back-up ring is provided with the inlet end of outlet valve and carries out the concavo-convex structure that cooperates.
According to a further aspect in the invention, also provide a kind of respirator, preferably, comprise aforementioned any PEEP valve.
The integrated PPEP valve that can external, not need respirator system that power is provided of the present invention, by being connected on respirator expiration pipeline terminal outward, the outlet valve front end can help not possess the respirator realization PEEP function of PEEP function not needing that the respirator main frame is made the preceding for down of any hardware change.That is to say, PEEP valve of the present invention can be totally independent of respirator system and work outward, thereby can allow the mentality of designing of respirator no longer be subjected to the constraint of the condition of PEEP valve, allow the respirator that does not possess the PEEP function under the prerequisite of not doing any change, possess the PEEP function simultaneously, promote the respirator class and the clinical scope of application, improved the respirator quality greatly, reduced cost, all brought very big income to respirator manufacturing and user.
Should be appreciated that above generality is described and the following detailed description is all enumerated and illustrative, purpose is for to the claimed further instruction that the invention provides.
Description of drawings
Accompanying drawing is formed the part of this description, with helping further understand the present invention.These accompanying drawings illustrate some embodiments of the present invention, and can be used for illustrating principle of the present invention with description.In the accompanying drawing:
Fig. 1 is the schematic section according to the structure of the PEEP valve of the embodiment of the invention.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.Identical in the accompanying drawings parts are represented with identical label.
Below, with reference to the PEEP valve of Fig. 1 description according to the embodiment of the invention.PEEP valve according to the embodiment of the invention is used for being installed on the respirator (not shown), and specifically, an end of described PEEP valve is used to connect the pipeline exhalation vents of respirator, and the other end is used to connect the inlet end of outlet valve.
With reference to Fig. 1, described PEEP valve comprises valve body 3, the pipeline exhalation vents that this valve body 3 is arranged to make described respirator is communicated with gas passage gas ground under predetermined pressure between the inlet end of described outlet valve, and wherein, described predetermined pressure is regulated by the line pressure adjusting device.
Preferably, according to a preferred embodiment of the invention, the line pressure adjusting device comprises: spring base 4, spring 3.With reference to Fig. 1 as can be seen, spring base 4 is arranged on the step on described valve body 3 inner surfacies, spring 3 presses on the described spring base 4,, the gas pressure in described valve body 3 is communicated with so that thereby making during greater than described predetermined pressure described spring base 4 separate described gas passage with described step, and thereby the gas pressure in described valve body 3 makes described spring base 4 engage described gas passage with described step during less than described predetermined pressure to close, thereby makes the gas passage between the inlet end of the pipeline exhalation vents of described respirator and described outlet valve cut off.
The line pressure adjusting device of PEEP valve may further include back-up ring 1, described back-up ring 1 is connected on the described valve body 3, described back-up ring is provided with the duct that is communicated with described gas passage, and described back-up ring 1 is used for described spring 2 is pressed between described back-up ring 1 and the described spring base 4.
The back-up ring 1 of PEEP valve can for example be connected on the described valve body 3 by modes such as screw threads, thereby regulates the pressure of described spring 2 linearly by the axial location of regulating described back-up ring 1.
Further, the relation according to the axial displacement of described pressure and described back-up ring can be provided with pressure scale on described back-up ring outer surface.Specifically, can the compression linear force and the back-up ring 1 of spring 2 be moved down displacement relation, be engraved on the outer surface of back-up ring 1, thereby make things convenient for the adjusting of gas pressure by test.
Preferably, described PEEP valve further comprises connecting cylinder 5, and described connecting cylinder is connected in described valve body 3 hermetically.
And, in order to realize quick connection the between PEEP valve and the respirator, can use the mode of concavo-convex cooperation that the PEEP valve is connected in respirator, thereby realize the PEEP valve to be connected in respirator by simple pluggable mode.Specifically, for being connected between the pipeline exhalation vents of realizing PEEP valve and respirator, as shown in Figure 1, for example outer surface of described connecting cylinder 5 is provided with the pipeline exhalation vents of described respirator and carries out the concavo-convex structure that cooperates.Further, as shown in Figure 1, for the adjunction between the inlet end of realizing PEEP valve and outlet valve, for example outer surface of described back-up ring 1 is provided with the inlet end of described outlet valve and carries out the concavo-convex structure that cooperates.
In sum, mainly form, thereby this PEEP valve can utilize linear spring force to realize exporting the pressure control of gas by valve body 3, back-up ring 1, spring 2, spring base 4, connecting cylinder 5 according to the PEEP valve of the embodiment of the invention.
Below in conjunction with Fig. 1 describe according to the assembly method of the PEEP valve of the embodiment of the invention with and using method.
Desire assembling is loaded onto spring 2 with spring base 4 earlier according to PEEP valve of the present invention, then they is placed the inside of valve body 3, makes spring base 4 place on the end difference on valve body 3 inner surfacies.Then, the rear end of valve body 3 is linked to each other with back-up ring 1, the front end of connecting cylinder 5 with valve body 3 linked to each other.
After treating that PEEP valve assembling finishes, with its two ends, that is, back-up ring 1 and connecting cylinder 5 are inserted in the inlet end of outlet valve and the pipeline exhalation vents of described respirator respectively, thereby realize being connected between PEEP valve and the respirator, and then have realized the PEEP function of respirator.
Specifically, in the time will being connected in respirator according to the PEEP valve of the embodiment of the invention, connecting cylinder 5 one of the present invention is terminated at the pipeline exhalation vents of respirator, back-up ring 1 one terminates at the inlet end of outlet valve.Thereby the gas of breathing out flows out along the direction of arrow of Fig. 1.When the pressure of gas during greater than the pressure (predetermined pressure) of spring 2, the gas of exhalation backs down spring base 4, and the duct of passing in the back-up ring 1 reaches outlet valve, thereby breathes out in atmosphere.
When the use of respirator need be provided with PEEP, rotate back-up ring 1 as required, adjust the axial displacement of back-up ring 1 relative valve body 3, thereby the pressure of regulating spring 2, the linear deformation power of spring 2 is added on the spring base 4, to realize utilizing linear spring force to realize exporting the pressure controlled purpose of gas.As mentioned above, can be provided with scale on the outer surface of back-up ring 1, this scale and gas pressure are linear, thereby can carry out according to graduated size at adjustments of gas pressure.
Although the present invention is illustrated with reference to accompanying drawing and preferred embodiment, obviously, for a person skilled in the art, under the prerequisite that does not deviate from the spirit and scope of the present invention, can make various changes and variation to the present invention.Various change of the present invention, the content that changes by appending claims and equivalent thereof contain.
Claims (9)
1. a PEEP valve is characterized in that, an end of described PEEP valve is used to connect the pipeline exhalation vents of respirator, and the other end is used to connect the inlet end of outlet valve, and described PEEP valve comprises:
The pipeline exhalation vents that valve body (3), described valve body (3) are arranged to make described respirator is communicated with gas passage gas ground under predetermined pressure between the inlet end of described outlet valve, and wherein, described predetermined pressure is regulated by the line pressure adjusting device.
2. PEEP valve according to claim 1 is characterized in that, described line pressure adjusting device comprises:
Spring base (4), it is arranged on the step on described valve body (3) inner surface;
Spring (3), it presses on the described spring base (4), so that the gas pressure in described valve body (3) make during greater than described predetermined pressure described spring base (4) thus separating described gas passage with described step is communicated with, and the gas pressure in described valve body (3) make during less than described predetermined pressure described spring base (4) thus engaging described gas passage with described step closes.
3. PEEP valve according to claim 2 is characterized in that, described line pressure adjusting device further comprises:
Back-up ring (1), described back-up ring (1) is connected on the described valve body (3), and described back-up ring is provided with the duct that is communicated with described gas passage, and described back-up ring (1) is used for described spring (2) is clipped between described back-up ring (1) and the described spring base (4).
4. PEEP valve according to claim 3 is characterized in that, described back-up ring (1) is by being threadedly connected on the described valve body (3), thereby regulates the pressure of described spring (2) linearly by the axial location of regulating described back-up ring (1).
5. PEEP valve according to claim 4 is characterized in that, the relation according to the axial displacement of described pressure and described back-up ring is provided with pressure scale on described back-up ring outer surface.
6. PEEP valve according to claim 3 is characterized in that, described PEEP valve further comprises:
Connecting cylinder (5), described connecting cylinder are connected in described valve body (3) hermetically.
7. PEEP valve according to claim 6 is characterized in that, described connecting cylinder (5) is provided with the pipeline exhalation vents of described respirator and carries out the concavo-convex structure that cooperates.
8. PEEP valve according to claim 3 is characterized in that, described back-up ring (1) is provided with the inlet end of described outlet valve and carries out the concavo-convex structure that cooperates.
9. a respirator is characterized in that, comprises each described PEEP valve in the aforementioned claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102175847A CN102114300A (en) | 2009-12-31 | 2009-12-31 | PEEP (positive end expiratory pressure) valve and respirator with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102175847A CN102114300A (en) | 2009-12-31 | 2009-12-31 | PEEP (positive end expiratory pressure) valve and respirator with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102114300A true CN102114300A (en) | 2011-07-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102175847A Pending CN102114300A (en) | 2009-12-31 | 2009-12-31 | PEEP (positive end expiratory pressure) valve and respirator with same |
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| Country | Link |
|---|---|
| CN (1) | CN102114300A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104208793A (en) * | 2013-05-31 | 2014-12-17 | 北京谊安医疗系统股份有限公司 | Butting device for exhalation valve and breathing machine with butting device |
| CN104874083A (en) * | 2014-02-28 | 2015-09-02 | 北京谊安医疗系统股份有限公司 | PEEP valve verification method |
| CN114146282A (en) * | 2021-12-08 | 2022-03-08 | 山东大学 | End-expiratory positive pressure valve for portable respirator and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4257453A (en) * | 1979-04-06 | 1981-03-24 | Ruth L. Hesse | Peep valve with improved vibration damping |
| CN1482934A (en) * | 2000-10-26 | 2004-03-17 | ��������ķ������ | Sealed back pressure breathing device |
| WO2009028938A2 (en) * | 2007-08-24 | 2009-03-05 | Emergency Pulmonary Care B, V, | Adjustable valve |
| CN101468225A (en) * | 2007-12-29 | 2009-07-01 | 北京谊安医疗系统股份有限公司 | Mechanical PEEP valve |
| CN201297413Y (en) * | 2008-11-17 | 2009-08-26 | 北京谊安医疗系统股份有限公司 | Air control valve and alarm system provided therewith |
-
2009
- 2009-12-31 CN CN2009102175847A patent/CN102114300A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4257453A (en) * | 1979-04-06 | 1981-03-24 | Ruth L. Hesse | Peep valve with improved vibration damping |
| CN1482934A (en) * | 2000-10-26 | 2004-03-17 | ��������ķ������ | Sealed back pressure breathing device |
| WO2009028938A2 (en) * | 2007-08-24 | 2009-03-05 | Emergency Pulmonary Care B, V, | Adjustable valve |
| CN101468225A (en) * | 2007-12-29 | 2009-07-01 | 北京谊安医疗系统股份有限公司 | Mechanical PEEP valve |
| CN201297413Y (en) * | 2008-11-17 | 2009-08-26 | 北京谊安医疗系统股份有限公司 | Air control valve and alarm system provided therewith |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104208793A (en) * | 2013-05-31 | 2014-12-17 | 北京谊安医疗系统股份有限公司 | Butting device for exhalation valve and breathing machine with butting device |
| CN104208793B (en) * | 2013-05-31 | 2018-07-10 | 北京谊安医疗系统股份有限公司 | For the docking facilities of outlet valve and with its lung ventilator |
| CN104874083A (en) * | 2014-02-28 | 2015-09-02 | 北京谊安医疗系统股份有限公司 | PEEP valve verification method |
| CN114146282A (en) * | 2021-12-08 | 2022-03-08 | 山东大学 | End-expiratory positive pressure valve for portable respirator and control method thereof |
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Application publication date: 20110706 |