WO1995017220A1 - A device for the supply of oxygen and/or other gases to a patient - Google Patents
A device for the supply of oxygen and/or other gases to a patient Download PDFInfo
- Publication number
- WO1995017220A1 WO1995017220A1 PCT/DK1994/000482 DK9400482W WO9517220A1 WO 1995017220 A1 WO1995017220 A1 WO 1995017220A1 DK 9400482 W DK9400482 W DK 9400482W WO 9517220 A1 WO9517220 A1 WO 9517220A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- patient
- flow
- oxygen
- tubular
- connecting member
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/06—Respiratory or anaesthetic masks
- A61M16/0666—Nasal cannulas or tubing
Definitions
- the present invention relates to a device for the supply of oxygen and/or other gases to a patient and comprising a flow duct which is, at its one end, provided with means for coupling to a supply source for oxygen and/or other gases and, at its other end, closed, and having between its two ends a patient connecting member comprising an upstream and a downstream tubular member, each of which is designed for insertion into the nostrils of a patient.
- the upstream tubular member is the tubular member which is most proximate to the gas supply relative to the flow duct. It is also referred to as the supply side.
- Such device may for instance be used for the supply of gas in the form of oxygen to a bedridden patient through his nostrils.
- the gas supplied may also be a mixture of oxygen and for instance atmospheric air.
- the device will be referred to in the following as an oxygen supply device.
- SUBSTITUTESHEET oxygen supply device it may even be painful. Moreover, the increased flow rates for the oxygen causes the nasal mucosa to dry out thereby causing an irritation condition which is also very uncomfortable to the patient.
- an oxygen supply device of the kind described above which is characterized in that the connecting member is constructed with means to increase the flow resistance beyond the upstream one of the tubular members to be inserted into the patient's nostrils.
- Such oxygen supply device provides substantially even flow rates through the respective tubular members which are inserted into the patient's nostrils thereby reducing the patient's discomforts.
- the means for increasing the flow resistance causes the flow area to be reduced beyond the upstream tubular member.
- This reduction of the flow area may e.g. be established by increasing the wall thickness inwards in the flow duct in a section between the two tubular members, or the downstream tubular member may alternatively be constructed with a smaller flow area compared to the upstream tubular member.
- the patient connecting member of the oxygen supply device is conveniently constructed as a separate element wherein at least the one end of the connecting member may be fitted with a first tubular connecting member which constitutes the flow conduit between the gas supply and the patient connecting member.
- the patient connecting member may be closed im edia-
- SUBSTITUTESHEET tely at the downstream end so as to form the other, closed end of the flow conduit.
- a flexible extension member e.g. in the form of a second tubular conduit closed at one end, may advantageously be mounted at the downstream end of the patient connecting member, which extension member may be connected to the first tubular conduit member by means of a coupling device and thus it can serve to secure the oxygen supply device behind the patient's head.
- Fig. 1 is a patient's view of an embodiment of a connec ⁇ ting member
- Fig. 3 is a sectional view through a connecting member along the line B-B in fig. 2,
- Fig. 4 is a sectional view of a connecting member according to the line A-A in fig. l,
- Fig. 5 shows a device according to the invention util ⁇ izing a patient connecting member as shown in figs. 1-4,
- Fig. 6 is a flow chart outlining the flow conditions following varying area reductions, wherein the area reduction is shown as a percentage of the total clearance, and
- the patient connecting member 1 of a device according to the invention comprises a
- SUBSTITUTESHEET flow conduit 2 from where two tubular members 4 extend which are intended for insertion into the patient's nostrils and are in flow communication with the flow path 3 of the flow conduit 2.
- the connecting member 1 is open in both ends of the flow conduit 2.
- the tubular member which is most proximate to the oxygen supply is referred to as the upstream tubular member whereas the tubular member which is most proximate to the closed end of the device is referred to as the downstream tubular member.
- the flow conduit 2 comprises a tangent surface 5 which faces the patient in its fitted state and is provided with a number of recesses 6 which, in the fitted state where the surface rests against the patient's upper lip, permit air to enter through the connecting member and the upper lip thereby reducing the discomforts which result from the insertion of the oxygen supply device.
- this is not essential to the invention.
- SUBSTITUTESHEET Fig. 4 shows a device according to the invention.
- a tubular conduit 8 is fitted which, via a coupling element 9, is at its opposite end connectable to an oxygen source (not shown) , e.g. a pressure gas cylinder.
- an oxygen source e.g. a pressure gas cylinder.
- the patient connecting member is designed symmetrically and thus it will be possible to connect the tubular conduit 8 to any of the two ends of the patient connecting member.
- the defini ⁇ tion of the upstream and the downstream tubular member will depend on which side is chosen for the fitting of the tubular conduit 8.
- the desired result may only be obtained by connecting the tubular member to that end of the patient connecting member which is most proximate to the tubular member with the largest flow cross section, or alternatively, to that end from which the tubular member extends from the flow path with the largest diameter.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/669,466 US5740799A (en) | 1993-12-21 | 1994-12-21 | Device for the supply of oxygen and/or other gases to a patient |
DE69417439T DE69417439T2 (en) | 1993-12-21 | 1994-12-21 | SUPPLYING DEVICE OF OXYGEN AND / OR OTHER GASES TO A PATIENT |
EP95904402A EP0735904B1 (en) | 1993-12-21 | 1994-12-21 | A device for the supply of oxygen and/or other gases to a patient |
AU13103/95A AU1310395A (en) | 1993-12-21 | 1994-12-21 | A device for the supply of oxygen and/or other gases to a patient |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK1428/93 | 1993-12-21 | ||
DK142893A DK171592B1 (en) | 1993-12-21 | 1993-12-21 | Device for supplying oxygen and / or other gases to a patient |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995017220A1 true WO1995017220A1 (en) | 1995-06-29 |
Family
ID=8104732
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DK1994/000482 WO1995017220A1 (en) | 1993-12-21 | 1994-12-21 | A device for the supply of oxygen and/or other gases to a patient |
Country Status (6)
Country | Link |
---|---|
US (1) | US5740799A (en) |
EP (1) | EP0735904B1 (en) |
AU (1) | AU1310395A (en) |
DE (1) | DE69417439T2 (en) |
DK (1) | DK171592B1 (en) |
WO (1) | WO1995017220A1 (en) |
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EP2140901A2 (en) * | 2008-07-02 | 2010-01-06 | Galemed Corporation | Respiratory auxiliary device |
US7735491B2 (en) | 2004-12-08 | 2010-06-15 | Ventus Medical, Inc. | Methods of treating respiratory disorders |
US7806120B2 (en) | 2004-12-08 | 2010-10-05 | Ventus Medical, Inc. | Nasal respiratory devices for positive end-expiratory pressure |
US7856979B2 (en) | 2006-05-23 | 2010-12-28 | Ventus Medical, Inc. | Nasal respiratory devices |
EP2271259A1 (en) * | 2008-05-01 | 2011-01-12 | Oridion Medical 1987 Ltd. | Oral/nasal cannula |
US7987852B2 (en) | 2006-06-07 | 2011-08-02 | Ventus Medical, Inc. | Nasal devices |
US8020700B2 (en) | 2007-12-05 | 2011-09-20 | Ventus Medical, Inc. | Packaging and dispensing nasal devices |
US8061357B2 (en) | 2004-12-08 | 2011-11-22 | Ventus Medical, Inc. | Adhesive nasal respiratory devices |
US8240309B2 (en) | 2006-11-16 | 2012-08-14 | Ventus Medical, Inc. | Adjustable nasal devices |
US8875711B2 (en) | 2010-05-27 | 2014-11-04 | Theravent, Inc. | Layered nasal respiratory devices |
US9044565B2 (en) | 2008-10-30 | 2015-06-02 | Oridion Medical (1987) Ltd. | Oral-nasal cannula system enabling CO2 and breath flow measurement |
US9615962B2 (en) | 2006-05-23 | 2017-04-11 | Jean-Pierre Robitaille | Nasal cannula |
US9730830B2 (en) | 2011-09-29 | 2017-08-15 | Trudell Medical International | Nasal insert and cannula and methods for the use thereof |
US9833354B2 (en) | 2004-12-08 | 2017-12-05 | Theravent, Inc. | Nasal respiratory devices |
US10610228B2 (en) | 2004-12-08 | 2020-04-07 | Theravent, Inc. | Passive nasal peep devices |
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IL123122A0 (en) * | 1998-01-29 | 1998-09-24 | Oridion Medical Ltd | Oral/nasal cannula |
US20070137653A1 (en) | 2000-03-13 | 2007-06-21 | Wood Thomas J | Ventilation interface for sleep apnea therapy |
US6595215B2 (en) | 2000-03-13 | 2003-07-22 | Innomed Technologies, Inc. | Ventilation interface for sleep apnea therapy |
US6776162B2 (en) | 2000-03-13 | 2004-08-17 | Innomed Technologies, Inc. | Ventilation interface for sleep apnea therapy |
US6478026B1 (en) * | 1999-03-13 | 2002-11-12 | Thomas J. Wood | Nasal ventilation interface |
US6536437B1 (en) | 1999-10-29 | 2003-03-25 | Branislav M. Dragisic | Cuffed nasal airway and anesthetic wand system |
US7059328B2 (en) * | 2000-03-13 | 2006-06-13 | Innomed Technologies, Inc. | Ventilation interface for sleep apnea therapy |
US20060150982A1 (en) * | 2003-08-05 | 2006-07-13 | Wood Thomas J | Nasal ventilation interface and system |
US6679265B2 (en) | 2001-10-25 | 2004-01-20 | Worldwide Medical Technologies | Nasal cannula |
EP2913079B1 (en) | 2002-09-06 | 2017-10-25 | ResMed Limited | Cushion for respiratory mask assembly |
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US20040182397A1 (en) * | 2003-03-21 | 2004-09-23 | Innomed Technologies, Inc. | Nasal interface including ventilation insert |
US20050011524A1 (en) * | 2003-07-17 | 2005-01-20 | Marguerite Thomlinson | Nasal interface apparatus |
US7191781B2 (en) | 2003-08-05 | 2007-03-20 | Innomed Technologies, Inc. | Nasal ventilation interface and system |
US20050235999A1 (en) * | 2004-04-23 | 2005-10-27 | Wood Thomas J | Nasal ventilation interface and system |
US6997187B2 (en) * | 2003-09-10 | 2006-02-14 | Innomed Technologies, Inc. | Nasal interface and system including ventilation insert |
US7472707B2 (en) * | 2003-08-06 | 2009-01-06 | Innomed Technologies, Inc. | Nasal interface and system including ventilation insert |
US7000613B2 (en) * | 2003-08-06 | 2006-02-21 | Innomed Technologies, Inc. | Nasal interface and system including ventilation insert |
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CN101683546A (en) * | 2004-04-09 | 2010-03-31 | 雷斯梅德有限公司 | Nasal assembly |
WO2005118040A1 (en) | 2004-06-03 | 2005-12-15 | Resmed Limited | Cushion for a patient interface |
US8042539B2 (en) * | 2004-12-10 | 2011-10-25 | Respcare, Inc. | Hybrid ventilation mask with nasal interface and method for configuring such a mask |
US8261745B2 (en) | 2004-12-10 | 2012-09-11 | Respcare, Inc. | Ventilation interface |
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US7559327B2 (en) | 2005-05-31 | 2009-07-14 | Respcare, Inc. | Ventilation interface |
JP5254787B2 (en) | 2005-06-06 | 2013-08-07 | レスメド・リミテッド | Mask system |
NZ591992A (en) | 2005-10-14 | 2012-11-30 | Resmed Ltd | Breathing mask with cushion attached to frame via lip of cushion engaging within recess between frame outer and inner walls, and guided in via angled protrusion of frame inner wall |
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US8789532B2 (en) | 2006-03-10 | 2014-07-29 | Respcare, Inc. | Ventilation mask |
US20070272247A1 (en) * | 2006-04-25 | 2007-11-29 | Oridion Medical Ltd. | Oral nasal cannula |
USD623288S1 (en) | 2006-04-28 | 2010-09-07 | Resmed Limited | Patient interface |
USD597199S1 (en) | 2006-04-28 | 2009-07-28 | Resmed Limited | Respiratory mask frame |
US8887725B2 (en) * | 2006-05-10 | 2014-11-18 | Respcare, Inc. | Ventilation interface |
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US8517023B2 (en) | 2007-01-30 | 2013-08-27 | Resmed Limited | Mask system with interchangeable headgear connectors |
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AU2008203372B2 (en) | 2007-07-30 | 2013-12-19 | Resmed Limited | Patient Interface |
EP2259827B1 (en) | 2008-03-04 | 2019-10-30 | ResMed Pty Ltd | A foam respiratory mask |
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US11331447B2 (en) | 2008-03-04 | 2022-05-17 | ResMed Pty Ltd | Mask system with snap-fit shroud |
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US8291906B2 (en) | 2008-06-04 | 2012-10-23 | Resmed Limited | Patient interface systems |
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US20130306078A1 (en) * | 2012-05-21 | 2013-11-21 | Tracy Lanciotto | Nasal Cannula Cover |
US10709861B2 (en) | 2013-09-20 | 2020-07-14 | Fisher & Paykel Healthcare Limited | Nasal cannula with flow restrictor |
JP6445576B2 (en) * | 2014-02-12 | 2018-12-26 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | Flexible low dead space respiratory nosepiece for gas sampling cannula and method of manufacturing respiratory nosepiece |
US20160051396A1 (en) | 2014-08-21 | 2016-02-25 | Eliezer Nussbaum | Sleep apnea device to positively block exhaling and method of use |
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US4248218A (en) * | 1978-09-22 | 1981-02-03 | Fischer Charles M | Gas administration scavenging mask |
US5137026A (en) * | 1990-01-04 | 1992-08-11 | Glaxo Australia Pty., Ltd. | Personal spirometer |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US3682171A (en) * | 1971-03-31 | 1972-08-08 | Baxter Laboratories Inc | Nasal cannula |
-
1993
- 1993-12-21 DK DK142893A patent/DK171592B1/en not_active IP Right Cessation
-
1994
- 1994-12-21 DE DE69417439T patent/DE69417439T2/en not_active Expired - Lifetime
- 1994-12-21 WO PCT/DK1994/000482 patent/WO1995017220A1/en active IP Right Grant
- 1994-12-21 EP EP95904402A patent/EP0735904B1/en not_active Expired - Lifetime
- 1994-12-21 US US08/669,466 patent/US5740799A/en not_active Expired - Lifetime
- 1994-12-21 AU AU13103/95A patent/AU1310395A/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4248218A (en) * | 1978-09-22 | 1981-02-03 | Fischer Charles M | Gas administration scavenging mask |
US5137026A (en) * | 1990-01-04 | 1992-08-11 | Glaxo Australia Pty., Ltd. | Personal spirometer |
Cited By (29)
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US8215308B2 (en) | 2004-12-08 | 2012-07-10 | Ventus Medical, Inc. | Sealing nasal devices for use while sleeping |
US8302607B2 (en) | 2004-12-08 | 2012-11-06 | Ventus Medical, Inc. | Adhesive nasal respiratory devices |
US7992564B2 (en) | 2004-12-08 | 2011-08-09 | Ventus Medical, Inc. | Respiratory devices |
US7735492B2 (en) | 2004-12-08 | 2010-06-15 | Ventus Medical, Inc. | Nasal respiratory devices |
US7798148B2 (en) | 2004-12-08 | 2010-09-21 | Ventus Medical, Inc. | Respiratory devices |
US7806120B2 (en) | 2004-12-08 | 2010-10-05 | Ventus Medical, Inc. | Nasal respiratory devices for positive end-expiratory pressure |
US8302606B2 (en) | 2004-12-08 | 2012-11-06 | Ventus Medical, Inc. | Methods of treating a sleeping subject |
US9833354B2 (en) | 2004-12-08 | 2017-12-05 | Theravent, Inc. | Nasal respiratory devices |
US7735491B2 (en) | 2004-12-08 | 2010-06-15 | Ventus Medical, Inc. | Methods of treating respiratory disorders |
US10610228B2 (en) | 2004-12-08 | 2020-04-07 | Theravent, Inc. | Passive nasal peep devices |
US8061357B2 (en) | 2004-12-08 | 2011-11-22 | Ventus Medical, Inc. | Adhesive nasal respiratory devices |
US8291909B2 (en) | 2004-12-08 | 2012-10-23 | Ventus Medical, Inc. | Methods of treating a disorder by inhibiting expiration |
US8365736B2 (en) | 2004-12-08 | 2013-02-05 | Ventus Medical, Inc. | Nasal devices with respiratory gas source |
US8235046B2 (en) | 2004-12-08 | 2012-08-07 | Ventus Medical, Inc. | Nasal devices for use while sleeping |
US9238113B2 (en) | 2004-12-08 | 2016-01-19 | Theravent, Inc. | Nasal respiratory devices for positive end-expiratory pressure |
US9615962B2 (en) | 2006-05-23 | 2017-04-11 | Jean-Pierre Robitaille | Nasal cannula |
US7856979B2 (en) | 2006-05-23 | 2010-12-28 | Ventus Medical, Inc. | Nasal respiratory devices |
US8985116B2 (en) | 2006-06-07 | 2015-03-24 | Theravent, Inc. | Layered nasal devices |
US7987852B2 (en) | 2006-06-07 | 2011-08-02 | Ventus Medical, Inc. | Nasal devices |
US8240309B2 (en) | 2006-11-16 | 2012-08-14 | Ventus Medical, Inc. | Adjustable nasal devices |
US8281557B2 (en) | 2007-12-05 | 2012-10-09 | Ventus Medical, Inc. | Method of packaging and dispensing nasal devices |
US8020700B2 (en) | 2007-12-05 | 2011-09-20 | Ventus Medical, Inc. | Packaging and dispensing nasal devices |
EP2271259A1 (en) * | 2008-05-01 | 2011-01-12 | Oridion Medical 1987 Ltd. | Oral/nasal cannula |
EP2140901A2 (en) * | 2008-07-02 | 2010-01-06 | Galemed Corporation | Respiratory auxiliary device |
EP2140901A3 (en) * | 2008-07-02 | 2010-03-17 | Galemed Corporation | Respiratory auxiliary device |
US9044565B2 (en) | 2008-10-30 | 2015-06-02 | Oridion Medical (1987) Ltd. | Oral-nasal cannula system enabling CO2 and breath flow measurement |
US8875711B2 (en) | 2010-05-27 | 2014-11-04 | Theravent, Inc. | Layered nasal respiratory devices |
US9730830B2 (en) | 2011-09-29 | 2017-08-15 | Trudell Medical International | Nasal insert and cannula and methods for the use thereof |
US10716700B2 (en) | 2011-09-29 | 2020-07-21 | Trudell Medical International | Nasal insert and cannula and methods for the use thereof |
Also Published As
Publication number | Publication date |
---|---|
DE69417439T2 (en) | 1999-07-22 |
DK142893A (en) | 1995-06-22 |
DK142893D0 (en) | 1993-12-21 |
EP0735904B1 (en) | 1999-03-24 |
DE69417439D1 (en) | 1999-04-29 |
DK171592B1 (en) | 1997-02-17 |
US5740799A (en) | 1998-04-21 |
AU1310395A (en) | 1995-07-10 |
EP0735904A1 (en) | 1996-10-09 |
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