EP1436046B1 - Lungenautomat für pressluftatemgeräte - Google Patents
Lungenautomat für pressluftatemgeräte Download PDFInfo
- Publication number
- EP1436046B1 EP1436046B1 EP02772059A EP02772059A EP1436046B1 EP 1436046 B1 EP1436046 B1 EP 1436046B1 EP 02772059 A EP02772059 A EP 02772059A EP 02772059 A EP02772059 A EP 02772059A EP 1436046 B1 EP1436046 B1 EP 1436046B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- oxygen system
- air
- valve seat
- valve
- driving motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 12
- 230000000241 respiratory effect Effects 0.000 title description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract 13
- 229910052760 oxygen Inorganic materials 0.000 claims abstract 13
- 239000001301 oxygen Substances 0.000 claims abstract 13
- 238000012856 packing Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 4
- 210000004072 lung Anatomy 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000002685 pulmonary effect Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B9/00—Component parts for respiratory or breathing apparatus
- A62B9/02—Valves
- A62B9/022—Breathing demand regulators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/02—Divers' equipment
- B63C11/18—Air supply
- B63C11/22—Air supply carried by diver
- B63C11/2227—Second-stage regulators
Definitions
- the invention relates to a regulator for SCBA, with a respiratory controlled valve device for regulating the air supply to a respiratory mask.
- Regulators have long been known. They are between the pressure reducing valve of a compressed air reservoir and the respirator switched and serve accordingly the respiratory cycle of providing a particular Breathing air quantity with one for the human organism suitable pressure. In the known pulmonary machines the actuation of the valve device takes place for release and for controlling the air supply from the pressure reducer to the respirator with the help of an inhaling through the User moved due to the negative pressure generated Control membrane.
- the invention is therefore based on the object, a To design lung machines of the kind mentioned in the opening paragraph that with a small size whose trouble-free Function and one to the specific breathing conditions of the User-adjustable control of air supply ensured is.
- the basic idea of the invention is that the actuation of the valve device or the release the air supply to the user when inhaling and interrupting the air supply when exhaling by one of a Pressure sensor controlled drive motor takes place.
- the regulator according to the invention comprises a housing, in a valve seat with centrally arranged air inlet channel, a the air inlet channel assigned Closing part and a drive motor housed for the closing part are.
- the pressure sensor for detecting the in the respective Respiratory phase of prevailing pressure due to the drive motor via a control unit according to a predetermined Control characteristic is controlled.
- valve seat with the central air inlet opening manually adjustable, so that in case of malfunction of the Movement of the closing part by the manual movement of the Valve seat yet an air supply to the user possible is.
- the illustrated in Figure 1 embodiment of a regulator comprises a housing 1 with a measuring chamber 2, the at the air outlet side via an air outlet channel 3 at the respirator (not shown) can be connected.
- a valve seat 4 is arranged, the by manual rotation according to the arrow A in Axial direction is adjustable.
- a sealing ring 5 is provided for sealing is between Valve seat 4 and housing 1, a sealing ring 5 is provided for sealing.
- the air supply according to the arrow B from the medium pressure line (not shown) takes place in the housing 1 via an axially extending in the valve seat 4 air inlet channel 6, which by a in the axial direction (arrow C) by means of a drive motor 8 movable closing part 7 is closable.
- the closing part 7 is for closing the front-side opening part 4a of the valve seat 4 formed as a closing cone 7a.
- the drive motor 8 is housed in a drive housing 9, the under the action of a safety spring 10 to the air inlet side towards (arrow D) against a stop surface 11th is pressed.
- the drive housing and an between drive motor 8 and closing part 7 provided drive member (Drive spindle) 12 are the measuring space 2 through Sealed ring seals 13 and 14.
- the one connection space between the air inlet channel 6 and the air outlet channel 3 is a pressure sensor 15 connected.
- the pressure sensor 15 is connected to the Drive motor 8 is connected via a controller 16. Furthermore is to the drive motor 8 and the pressure sensor 15 a Power supply 17 connected.
- the drawing shows the regulator in the upper one Half of the picture in the closed valve position and in the lower half of the picture in the open valve position.
- the pressure sensor 15 controls the drive motor 8 due to the pressure increase in the way that the closing part 7 is moved towards the valve seat 4 and the valve seat 4 seals, so that of the medium pressure line no respiratory air can flow.
- safety spring 10 is used for a voltage applied to the lung machine Inadmissibly high pressure, for example with a defective one Pressure reducer, the closing part 7 together with drive housing. 9 push back and release the opening of the valve seat 4, so that the air can flow out.
- valve seat 4 is turned out of the housing 1 by hand can be. This allows the user even with a broken Drive motor 8, which is no longer able to withdraw the closing part 7 and the air inlet channel 6 release, breathing air to be supplied.
- FIG. 2 differs differ from those described above only in terms of the formation of the valve device.
- the Closing part is as the inner cylinder 18 surrounding, with Help the drive motor 8 rotatable about its longitudinal axis Closing pot 20 executed.
- In the wall of the closing pot 20 is also a (second) through hole 21, the same height as the first through hole 19 is located.
- two seals 23 and 24 are provided, which are arranged are that the through holes lie between them.
- Fig. 2 shows the fully closed Valve position when exhaling, in which the Closing pot 20 due to the increased pressure from the drive motor 8 in a through holes 19 sealing Location, which illustrates in Fig. 2 by the sealing surface is, was filmed.
- the effect of the safety spring 10 comes about, that at one of the medium pressure line outgoing To high pressure of the closing pot 20 in the axial direction opposite the elastic force of the safety spring 10 moves becomes. This will improve the sealing effect of the front seal 24 lifted so that the air can flow out.
- valve seat. 4 with inner cylinder 18 manually turn so that one of first through holes 19 with the second through hole 21 is brought into the closing pot 20, so that breathing air can flow to the respirator mask.
- the valve device to release or interrupting the air supply as longitudinally elastic extendable valve member 25 in the elastic part integrated valve openings 26 formed.
- the elastic valve element 25 with Help of the powered by the drive motor 8 drive member 12 stretched so that the valve openings 26 released be and breathing air from the air inlet duct 6 via the Valve openings 26, the measuring chamber 2 and the air outlet channel 3 to flow to the user. Because of the pressure sensor 15 measured pressure conditions can be a corresponding metered amount of air to be routed to the mask by the drive motor 8, the elastic valve element 25 to stretches a certain amount and the valve openings 26 accordingly opens.
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- External Artificial Organs (AREA)
Description
- Fig.1
- eine erste Ausführungsvariante eines erfindungsgemäßen Lungenautomaten mit einem translatorisch bewegten Schließteil zur Freigabe und Regelung der Luftzufuhr zum Benutzer;
- Fig.2
- eine zweite Ausführungsvariante des Lungenautomaten mit einem die Luftzuführung durch eine Drehbewegung regelnden Verschlußorgan für die Luftzufuhr; und
- Fig.3
- eine dritte Ausführungsvariante des Lungenautomaten mit einem elastisch ausgebildeten Verschlußelement, das infolge seiner Längenänderung den Luftweg über die Atemschutzmaske zum Benutzer freigibt.
- 1
- Gehäuse
- 2
- Meßraum
- 3
- Luftaustrittskanal
- 4
- Ventilsitz
- 4a
- stirnseitiges Öffnungsteil
- 5
- Dichtungsring
- 6
- Lufteintrittskanal
- 7
- Schließteil
- 7a
- Schließkegel
- 8
- Antriebsmotor
- 9
- Antriebsgehäuse
- 10
- Sicherheitsfeder
- 11
- Anschlagfläche
- 12
- Antriebsorgan
- 13
- Ringdichtung
- 14
- Ringdichtung
- 15
- Drucksensor
- 16
- Steuerung
- 17
- Stromversorgung
- 18
- Innenzylinder
- 19
- Erste Durchgangsbohrung
- 20
- Schließtopf
- 21
- Zweite Durchgangsbohrung
- 22
- Dichtfläche
- 23
- Dichtung
- 24
- Dichtung (vorn)
- 25
- Elastisches Ventilelement
- 26
- Ventilöffnung
Claims (12)
- Lungenautomat für Pressluftatemgeräte mit einer durch die Atmung gesteuerten, in einem Gehäuse untergebrachten Ventileinrichtung zur Regelung der Luftzufuhr zu einer Atemschutzmaske, dadurch gekennzeichnet, dass die Ventileinrichtung einen Ventilsitz (4) mit einem Lufteintrittskanal (6) und ein von einem Antriebsmotor (8) betätigtes Schließteil (7, 20, 25) umfasst, wobei in einem Meßraum (2), der den Lufteintrittskanal (6) und einen im Gehäuse (1) ausgebildeten an die Atemschutzmaske angeschlossenen Luftaustrittskanal (3) verbindet, ein Drucksensor (15) angeordnet ist, der zur Regelung der Luftzufuhr auf der Basis des gemessenen Druckes über eine Steuerung (16) mit dem Antriebsmotor (8) verbunden ist.
- Lungenautomat nach Anspruch 1, dadurch gekennzeichnet, dass der Antriebsmotor (8) und ein mit dem Schließteil (7, 20, 25) verbundenes Antriebsorgan (12) entgegen dem auf das Schließteil (7, 20, 25) wirkenden Luftdruck elastisch an einer Anschlagfläche (11) im Gehäuse (1) gehalten ist und somit das Schließteil (7, 20, 25) zur Freigabe des Lufteintrittskanal (6) selbsttätig verstellbar ist, wenn ein unzulässig hoher Druck anliegt.
- Lungenautomat nach Anspruch 2, dadurch gekennzeichnet, dass die elastische Lagerung des Antriebsmotors (8) eine Sicherheitsfeder (10) ist, die das Antriebsgehäuse des Antriebsmotors (8) gegen die Anschlagfläche (11) drückt.
- Lungenautomat nach Anspruch 1, dadurch gekennzeichnet, dass der Ventilsitz (4) so manuell verstellbar und abgedichtet im Gehäuse (1) angeordnet ist, dass die Verbindung mit dem Luftaustrittskanal (3) auch bei einem im Störungsfall nicht betätigbaren Schließteil (7, 20, 25) herstellbar ist.
- Lungenautomat nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Lufteintrittskanal (6) des Ventilsitzes (4) an der ausgangsseitigen stirnseitigen Öffnung (4a) durch ein in Längsrichtung (Pfeil C) bewegliches Schließteil (7) verschließbar ist.
- Lungenautomat nach Anspruch 5, dadurch gekennzeichnet, dass der Ventilsitz (4) durch manuelles Drehen (Pfeil A) axial verstellbar ist.
- Lungenautomat nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Ventilsitz (4) ausgangsseitig als Innenzylinder (18) mit in der Zylinderwand vorgesehenen Durchgangsbohrungen (19) ausgebildet ist und über den Innenzylinder (18) ein als Schließteil fungierender Schließtopf (20) mit einer seitlichen Durchgangsbohrung (21) greift, wobei der Schließtopf (20) entsprechend den festgestellten Druckverhältnissen durch den Antriebsmotor (8) um seine Achse drehbar ist, um bei teilweiser oder vollständiger Überdeckung der Durchgangsbohrungen des Innenzylinders (18) und des Schließtopfes (20) die Luftzufuhr zur Atemschutzmaske freizugeben.
- Lungenautomat nach Anspruch 7, dadurch gekennzeichnet, dass der Schließtopf (20) gemeinsam mit dem Antriebsorgan (12) und dem Antriebsmotor (8) unter der Wirkung eines unzulässig hohen Druckes in Längsrichtung verschiebbar ist, wobei eine zwischen Innenzylinder (18) und Schließtopf (20) vorgesehene Dichtung (24) außer Eingriff kommt.
- Lungenautomat nach Anspruch 7, dadurch gekennzeichnet, dass der Innenzylinder (18) durch manuelles Drehen des Ventilsitzes (4) verdrehbar ist, um eine vom Antrieb unabhängige Luftzufuhr zur Atemschutzmaske zu gewährleisten.
- Lungenautomat nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Schließteil als ein an den Ventilsitz (4) angeschlossenes, topfartiges elastisches Ventilelement (25) ausgebildet ist, das aufgrund der Streckung durch das mit dem Antriebsmotor (8) angetriebene Antriebsorgan (12) unfolge des gemessenen Druckes im Meßraum (2) Ventilöffnungen (26) in den Seitenwänden mehr oder weniger weit öffnet bzw. verschließt.
- Lungenautomat nach Anspruch 10, dadurch gekennzeichnet, dass das elastische Ventilelement (25) durch manuelles axiales Verstellen des Ventilsitzes (4) elastisch streckbar ist, um eine vom Antrieb unabhängige Luftzufuhr zu bewirken.
- Lungenautomat nach Anspruch 10, dadurch gekennzeichnet, dass das elastische Ventilelement (25) bei Anliegen eines unzulässig hohen Druckes am Eingang elastisch streckbar ist, um die Ventilöffnung (26) freizugeben.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10152454 | 2001-10-19 | ||
DE10152454A DE10152454B4 (de) | 2001-10-19 | 2001-10-19 | Lungenautomat für Pressluftatemgeräte |
PCT/DE2002/003421 WO2003037437A1 (de) | 2001-10-19 | 2002-09-10 | Lungenautomat für pressluftatemgeräte |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1436046A1 EP1436046A1 (de) | 2004-07-14 |
EP1436046B1 true EP1436046B1 (de) | 2005-06-08 |
Family
ID=7703552
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02772059A Expired - Lifetime EP1436046B1 (de) | 2001-10-19 | 2002-09-10 | Lungenautomat für pressluftatemgeräte |
Country Status (6)
Country | Link |
---|---|
US (1) | US20050121035A1 (de) |
EP (1) | EP1436046B1 (de) |
AT (1) | ATE297237T1 (de) |
AU (1) | AU2002336905B2 (de) |
DE (2) | DE10152454B4 (de) |
WO (1) | WO2003037437A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8960194B2 (en) * | 2006-02-23 | 2015-02-24 | Spacelabs Healthcare Llc | Ventilator for rapid response to respiratory disease conditions |
US20070221221A1 (en) * | 2006-02-23 | 2007-09-27 | Cooke Richard H | Ventilator for Rapid Response to Respiratory Disease Conditions |
US9993604B2 (en) | 2012-04-27 | 2018-06-12 | Covidien Lp | Methods and systems for an optimized proportional assist ventilation |
US9669172B2 (en) * | 2012-07-05 | 2017-06-06 | Resmed Limited | Discreet respiratory therapy system |
US10362967B2 (en) | 2012-07-09 | 2019-07-30 | Covidien Lp | Systems and methods for missed breath detection and indication |
US9027552B2 (en) | 2012-07-31 | 2015-05-12 | Covidien Lp | Ventilator-initiated prompt or setting regarding detection of asynchrony during ventilation |
US9950129B2 (en) | 2014-10-27 | 2018-04-24 | Covidien Lp | Ventilation triggering using change-point detection |
GB201509800D0 (en) * | 2015-06-05 | 2015-07-22 | Smiths Medical Int Ltd | Respiratory therapy apparatus |
US11324954B2 (en) | 2019-06-28 | 2022-05-10 | Covidien Lp | Achieving smooth breathing by modified bilateral phrenic nerve pacing |
CN111060441B (zh) * | 2020-02-14 | 2020-09-11 | 山东鑫珂海洋生物技术股份有限公司 | 一种便于检测口罩质量的装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8830131D0 (en) * | 1988-12-23 | 1989-02-22 | Instr & Movements Limited | Demand valves |
DE4040793A1 (de) * | 1990-12-15 | 1992-06-17 | Ulrich Gumpert | Elektronisch geregelter lungenautomat |
US5331995A (en) * | 1992-07-17 | 1994-07-26 | Bear Medical Systems, Inc. | Flow control system for medical ventilator |
US5928189A (en) * | 1997-04-22 | 1999-07-27 | Phillips; Robert E. | Activity responsive therapeutic delivery system |
SE9801624D0 (sv) * | 1998-05-11 | 1998-05-11 | Siemens Elema Ab | Ventil |
DE19934058B4 (de) * | 1999-07-19 | 2004-07-08 | Auergesellschaft Gmbh | Ventil für Druckgasatemgeräte |
US6467505B1 (en) * | 2000-10-11 | 2002-10-22 | Flowmatrix Inc. | Variable pressure regulated flow controllers |
-
2001
- 2001-10-19 DE DE10152454A patent/DE10152454B4/de not_active Expired - Fee Related
-
2002
- 2002-09-10 AT AT02772059T patent/ATE297237T1/de not_active IP Right Cessation
- 2002-09-10 AU AU2002336905A patent/AU2002336905B2/en not_active Ceased
- 2002-09-10 EP EP02772059A patent/EP1436046B1/de not_active Expired - Lifetime
- 2002-09-10 WO PCT/DE2002/003421 patent/WO2003037437A1/de active IP Right Grant
- 2002-09-10 DE DE50203374T patent/DE50203374D1/de not_active Expired - Fee Related
- 2002-09-10 US US10/492,769 patent/US20050121035A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
DE50203374D1 (de) | 2005-07-14 |
WO2003037437A1 (de) | 2003-05-08 |
ATE297237T1 (de) | 2005-06-15 |
US20050121035A1 (en) | 2005-06-09 |
AU2002336905B2 (en) | 2006-12-21 |
DE10152454B4 (de) | 2005-07-28 |
DE10152454A1 (de) | 2003-05-08 |
EP1436046A1 (de) | 2004-07-14 |
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