WO2003037437A1 - Lungenautomat für pressluftatemgeräte - Google Patents
Lungenautomat für pressluftatemgeräte Download PDFInfo
- Publication number
- WO2003037437A1 WO2003037437A1 PCT/DE2002/003421 DE0203421W WO03037437A1 WO 2003037437 A1 WO2003037437 A1 WO 2003037437A1 DE 0203421 W DE0203421 W DE 0203421W WO 03037437 A1 WO03037437 A1 WO 03037437A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- drive motor
- air
- valve seat
- regulator according
- pressure
- Prior art date
Links
- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 20
- 230000000241 respiratory effect Effects 0.000 title claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 4
- 230000002685 pulmonary effect Effects 0.000 claims 1
- 230000001681 protective effect Effects 0.000 abstract 2
- 210000004072 lung Anatomy 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 5
- 230000007257 malfunction Effects 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 101100298222 Caenorhabditis elegans pot-1 gene Proteins 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 244000144985 peep Species 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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 compressed air breathing apparatus, with a valve device controlled by breathing for regulating the air supply to a breathing mask.
- Regulators have been known for a long time. They are connected between the pressure reducing valve of a compressed air reservoir and the respirator mask and, in accordance with the breathing cycle, serve to provide a certain amount of breathing air at a pressure suitable for the human organism.
- the valve device for releasing and regulating the air supply from the pressure reducer to the breathing mask is actuated with the aid of a control membrane which is moved when the user inhales due to the negative pressure generated.
- the invention is therefore based on the object of designing a regulator of the type mentioned at the outset in such a way that its small size is trouble-free Function and a regulation of the air supply adaptable to the specific breathing conditions of the user is guaranteed.
- the basic idea of the invention is that the actuation of the valve device or the release of the air supply to the user when inhaling and the interruption of the air supply when exhaling is carried out by a drive motor controlled by a pressure sensor.
- a closing part assigned to the outlet opening in the valve seat on the basis of the pressure signaled in the lung regulator during inhalation and exhalation from the pressure meter via a control to the drive motor opens or closes this outlet opening to a greater or lesser extent.
- the regulator according to the invention comprises a housing in which a valve seat with a centrally arranged air inlet duct, a closing part assigned to the air inlet duct and a drive motor for the closing part are accommodated.
- the pressure sensor for detecting the pressure prevailing in the respiratory phase in question is located in a measuring space connecting the air inlet channel and the air inlet channel formed in the housing and connected to the respirator mask, on the basis of which the drive motor is controlled via a control unit according to a predetermined control characteristic.
- the regulation of the air supply is very even and adapted to the actual needs of the user or the breathing conditions. Due to the valve actuation with a drive motor controlled by the measured pressure, only a few mechanical components are required. This increases the service life and reduces the susceptibility to faults. Compared to the known devices, the size is significantly smaller. In particular, malfunctions due to external mechanical effects on the lung automat are essentially excluded. The noises known from the mechanically controlled automatic peep machines do not occur in the device according to the invention.
- the drive motor which is connected to the closing part of the valve device via a drive element, is elastically mounted. If an inadmissibly high air pressure acts on the closing part, for example in the event of a defect in the pressure reducing valve known to be upstream of the regulator, pressure compensation can take place due to the elastic mounting of the drive motor and thus also the elastic mounting of the closing part.
- valve seat with the central air inlet opening can be adjusted manually, so that in the event of a malfunction of the movement of the closing part due to the manual movement of the valve seat, an air supply to the user is nevertheless possible.
- Fig.l a first embodiment of a regulator according to the invention with a translationally moved closing part for releasing and controlling the air supply to the user;
- FIG. 2 shows a second embodiment of the regulator with a closure member for the air supply which regulates the air supply by means of a rotary movement
- FIG. 3 shows a third embodiment variant of the regulator with an elastically designed closure element which, due to its change in length, leads the airway over the respiratory mask
- a lung regulator shown in Fig.l comprises a housing 1 with a measuring chamber 2, which can be excluded on the air outlet side via an air outlet channel 3 to the respiratory mask (not shown).
- a valve seat 4 On the air inlet side connected to a pressure reducer (not shown) via a medium pressure line, a valve seat 4 is arranged in the housing 1 and can be adjusted in the axial direction by manual rotary movement in accordance with the arrow A.
- a sealing ring 5 is provided between valve seat 4 and housing 1 for sealing.
- the air supply according to arrow B from the medium pressure line (not shown) into the housing 1 takes place via an air inlet duct 6 which runs axially in the valve seat 4 and which can be closed by a closing part 7 which is movable in the axial direction (arrow C) with the aid of a drive motor 8.
- the locking part 7 is for close the front opening part 4a of the valve seat 4 formed as a closing cone 7a.
- the drive motor 8 is accommodated in a drive housing 9 which, under the action of a safety spring 10, is pressed toward the air inlet side (arrow D) against a stop surface 11.
- the drive housing and a drive element (drive spindle) 12 provided between the drive motor 8 and the closing part 7 are sealed off from the measuring chamber 2 by ring seals 13 and 14.
- a pressure sensor 15 is connected to the measuring space 2, which represents a connection space between the air inlet duct 6 and the air outlet duct 3.
- the pressure sensor 15 is connected to the drive motor 8 via a controller 16.
- a power supply 17 is connected to the drive motor 8 and the pressure sensor 15.
- the drawing shows the regulator in the upper one
- the drive motor 8 receives a signal corresponding to the change in the pressure via the control 16 and pulls it Lock part back (lower half of the picture).
- the air supplied via a medium pressure line (not shown) can flow via the air inlet duct 6, the measuring space (connection space) 2 and the air outlet duct 3 to the respiratory protection mask (not shown). Since the control of the drive motor 8 takes place on the basis of the respective pressure conditions, one must take into account the prevailing conditions. Precisely adapted air supply to the user is possible.
- the pressure sensor 15 controls the drive motor 8 due to the pressure increase in such a way that the closing part 7 is moved towards the valve seat 4 and seals the valve seat 4, so that no breathing air can flow in from the medium pressure line.
- the safety spring 10 acting on the drive housing 9 serves to push back the closing part 7 together with the drive housing 9 in the event of an impermissibly high pressure, for example in the case of a defective pressure reducer, and to release the opening of the valve seat 4 so that the air can flow out ,
- valve seat 4 can be unscrewed from the housing 1 by hand. As a result, breathing air can be supplied to the user even in the case of a defective drive motor 8 which is no longer able to pull the closing part 7 back and open the air inlet duct 6.
- FIG. 2 differs from the one described above only with regard to the design of the valve device.
- This consists of a valve seat 4 with an inner cylinder 18, the cylinder wall of which has first through bores 19.
- the closing part is designed as a closing pot 20 which surrounds the inner cylinder 18 and can be rotated about its longitudinal axis with the aid of the drive motor 8.
- Two seals 23 and 24 are provided, which are arranged so that the through holes are between them.
- the control of the air supply to the respiratory mask via the lung automats takes place in this embodiment variant in such a way that, due to the pressure conditions prevailing during inhalation and transmitted from the pressure meter 15 to the control 16 in the measuring chamber 2, the drive motor 8 sets the closing pot 20 in a rotary motion and its through bore 21 via the through bore 19 of the inner cylinder 18 (extension of the valve seat). Depending on how far the second through hole 21 covers the first through hole 19 in accordance with the determined pressure, the user is supplied with a corresponding amount of air.
- the open valve position is shown in the upper half of the figure, so that the inhalation air flows according to arrows B and E from the medium pressure line via the air inlet duct 6, the through holes 19 and 21, the measuring chamber 2 and the air outlet duct 3 to the respirator mask.
- Fig. 2 shows the fully closed valve position during exhalation, in which the closing pot 20 was rotated due to the increased pressure from the drive motor 8 in a position sealing the through holes 19, which is illustrated in Fig. 2 by the sealing surface.
- the effect of the safety spring 10 arises from the fact that if the pressure from the medium-pressure line is too high, the locking pot 20 is moved in the axial direction against the elastic force of the safety spring 10. This removes the sealing effect of the front seal 24 so that the air can flow out. If, for example, due to a defective drive motor 8, the closing pot 20 cannot be rotated and therefore no breathing air can be passed to the user, it is possible in this second embodiment to manually turn the valve seat 4 with the inner cylinder 18 in such a way that one of the first through bores 19 also the second through hole 21 in the closing cup 20 is made to coincide, so that breathing air can flow to the respirator.
- the valve device for releasing or interrupting the air supply is designed as a valve element 25 which is elastically extendable in the longitudinal direction and has valve openings 26 integrated in its elastic part.
- the elastic valve element 25 is stretched with the aid of the drive element 12 operated by the drive motor 8, so that the valve openings 26 are released and breathing air flows from the air inlet duct 6 via the valve openings 26, the measuring chamber 2 and the air outlet duct 3 to the user.
- a correspondingly metered amount of air can be directed to the mask by the drive motor 8 stretching the elastic valve element 25 by a certain amount and opening the valve openings 26 accordingly.
- Housing measuring chamber air outlet duct valve seat a front opening part sealing ring air inlet duct closing part a closing cone drive motor drive housing 0 safety spring 1 stop surface 2 drive element 3 ring seal 4 ring seal 5 pressure sensor 6 control 7 power supply 8 inner cylinder 9 first through hole 0 closing pot 1 second through hole 2 sealing surface 3 seal 4 seal (front) 5 Elastic valve element 6 valve opening
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)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/492,769 US20050121035A1 (en) | 2001-10-19 | 2002-09-10 | Respiratory apparatus for compressed-air breathing equipment |
EP02772059A EP1436046B1 (de) | 2001-10-19 | 2002-09-10 | Lungenautomat für pressluftatemgeräte |
AU2002336905A AU2002336905B2 (en) | 2001-10-19 | 2002-09-10 | Respiratory apparatus for compressed-air breathing equipment |
AT02772059T ATE297237T1 (de) | 2001-10-19 | 2002-09-10 | Lungenautomat für pressluftatemgeräte |
DE50203374T DE50203374D1 (de) | 2001-10-19 | 2002-09-10 | Lungenautomat für pressluftatemgeräte |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10152454.4 | 2001-10-19 | ||
DE10152454A DE10152454B4 (de) | 2001-10-19 | 2001-10-19 | Lungenautomat für Pressluftatemgeräte |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003037437A1 true WO2003037437A1 (de) | 2003-05-08 |
Family
ID=7703552
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2002/003421 WO2003037437A1 (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) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111060441A (zh) * | 2020-02-14 | 2020-04-24 | 淄博海瑞医疗器械有限公司 | 一种便于检测口罩质量的装置 |
Families Citing this family (9)
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 |
WO2007101124A2 (en) * | 2006-02-23 | 2007-09-07 | Spacelabs Healthcare | 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 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0375281A2 (de) * | 1988-12-23 | 1990-06-27 | Instruments And Movements Limited | Beatmungsventil |
DE4040793A1 (de) * | 1990-12-15 | 1992-06-17 | Ulrich Gumpert | Elektronisch geregelter lungenautomat |
US5928189A (en) * | 1997-04-22 | 1999-07-27 | Phillips; Robert E. | Activity responsive therapeutic delivery system |
DE19934058A1 (de) * | 1999-07-19 | 2001-02-01 | Auergesellschaft Gmbh | Ventil für Druckgasatemgeräte |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5331995A (en) * | 1992-07-17 | 1994-07-26 | Bear Medical Systems, Inc. | Flow control system for medical ventilator |
SE9801624D0 (sv) * | 1998-05-11 | 1998-05-11 | Siemens Elema Ab | Ventil |
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 AU AU2002336905A patent/AU2002336905B2/en not_active Ceased
- 2002-09-10 WO PCT/DE2002/003421 patent/WO2003037437A1/de active IP Right Grant
- 2002-09-10 AT AT02772059T patent/ATE297237T1/de not_active IP Right Cessation
- 2002-09-10 EP EP02772059A patent/EP1436046B1/de not_active Expired - Lifetime
- 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
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0375281A2 (de) * | 1988-12-23 | 1990-06-27 | Instruments And Movements Limited | Beatmungsventil |
DE4040793A1 (de) * | 1990-12-15 | 1992-06-17 | Ulrich Gumpert | Elektronisch geregelter lungenautomat |
US5928189A (en) * | 1997-04-22 | 1999-07-27 | Phillips; Robert E. | Activity responsive therapeutic delivery system |
DE19934058A1 (de) * | 1999-07-19 | 2001-02-01 | Auergesellschaft Gmbh | Ventil für Druckgasatemgeräte |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111060441A (zh) * | 2020-02-14 | 2020-04-24 | 淄博海瑞医疗器械有限公司 | 一种便于检测口罩质量的装置 |
Also Published As
Publication number | Publication date |
---|---|
US20050121035A1 (en) | 2005-06-09 |
EP1436046A1 (de) | 2004-07-14 |
ATE297237T1 (de) | 2005-06-15 |
DE50203374D1 (de) | 2005-07-14 |
DE10152454A1 (de) | 2003-05-08 |
DE10152454B4 (de) | 2005-07-28 |
EP1436046B1 (de) | 2005-06-08 |
AU2002336905B2 (en) | 2006-12-21 |
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