DE60031249T2 - Wärme- und feuchtigkeitsaustauscher mit hydrophilem nylon - Google Patents
Wärme- und feuchtigkeitsaustauscher mit hydrophilem nylon Download PDFInfo
- Publication number
- DE60031249T2 DE60031249T2 DE60031249T DE60031249T DE60031249T2 DE 60031249 T2 DE60031249 T2 DE 60031249T2 DE 60031249 T DE60031249 T DE 60031249T DE 60031249 T DE60031249 T DE 60031249T DE 60031249 T2 DE60031249 T2 DE 60031249T2
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- Prior art keywords
- fibers
- polymer
- core
- patient
- sheath
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Landscapes
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- Nonwoven Fabrics (AREA)
- Drying Of Gases (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Materials For Medical Uses (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polyamides (AREA)
- Artificial Filaments (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/251,491 US6330883B1 (en) | 1999-02-17 | 1999-02-17 | Heat and moisture exchanger comprising hydrophilic nylon and methods of using same |
| PCT/US2000/000909 WO2000048682A1 (en) | 1999-02-17 | 2000-01-18 | Heat and moisture exchanger comprising hydrophilic nylon and methods of using same |
| US251491 | 2002-09-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE60031249D1 DE60031249D1 (de) | 2006-11-23 |
| DE60031249T2 true DE60031249T2 (de) | 2007-05-24 |
Family
ID=22952208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE60031249T Expired - Fee Related DE60031249T2 (de) | 1999-02-17 | 2000-01-18 | Wärme- und feuchtigkeitsaustauscher mit hydrophilem nylon |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US6330883B1 (enExample) |
| EP (1) | EP1161281B1 (enExample) |
| JP (1) | JP2002541880A (enExample) |
| AT (1) | ATE342085T1 (enExample) |
| AU (1) | AU2850000A (enExample) |
| BR (1) | BR0007867A (enExample) |
| DE (1) | DE60031249T2 (enExample) |
| WO (1) | WO2000048682A1 (enExample) |
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| US8839791B2 (en) | 2011-06-22 | 2014-09-23 | Breathe Technologies, Inc. | Ventilation mask with integrated piloted exhalation valve |
| US9038635B2 (en) | 2011-06-22 | 2015-05-26 | Breathe Technologies, Inc. | Ventilation mask with integrated piloted exhalation valve |
| US9486602B2 (en) | 2011-06-22 | 2016-11-08 | Breathe Technologies, Inc. | Ventilation mask with integrated piloted exhalation valve and method of ventilating a patient using the same |
| US9878121B2 (en) | 2013-03-13 | 2018-01-30 | Breathe Technologies, Inc. | Ventilation mask with heat and moisture exchange device |
Families Citing this family (51)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1318430B1 (it) * | 2000-03-29 | 2003-08-25 | Mallinckrodt Holdings B V | Dispositivo per l'umidificazione passiva di pazienti tracheostomizzati o intubati. |
| US7559324B2 (en) | 2000-06-21 | 2009-07-14 | Fisher & Paykel Healthcare Limited | Conduit with heated wick |
| US7888275B2 (en) * | 2005-01-21 | 2011-02-15 | Filtrona Porous Technologies Corp. | Porous composite materials comprising a plurality of bonded fiber component structures |
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| AU2003244171B2 (en) | 2002-09-09 | 2007-11-15 | Fisher & Paykel Healthcare Limited | Limb for Breathing Circuit |
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| US7291263B2 (en) | 2003-08-21 | 2007-11-06 | Filtrona Richmond, Inc. | Polymeric fiber rods for separation applications |
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| US8021457B2 (en) | 2004-11-05 | 2011-09-20 | Donaldson Company, Inc. | Filter media and structure |
| WO2006052732A2 (en) | 2004-11-05 | 2006-05-18 | Donaldson Company, Inc. | Filter medium and structure |
| US12172111B2 (en) | 2004-11-05 | 2024-12-24 | Donaldson Company, Inc. | Filter medium and breather filter structure |
| US8057567B2 (en) | 2004-11-05 | 2011-11-15 | Donaldson Company, Inc. | Filter medium and breather filter structure |
| US8757150B2 (en) * | 2004-12-17 | 2014-06-24 | Ric Investments, Llc | Condensation reduction and management systems in a gas flow delivery system |
| WO2006079511A1 (en) * | 2005-01-27 | 2006-08-03 | Colbond B.V. | Tufted nonwoven and bonded nonwoven |
| US8177875B2 (en) | 2005-02-04 | 2012-05-15 | Donaldson Company, Inc. | Aerosol separator; and method |
| US8404014B2 (en) | 2005-02-22 | 2013-03-26 | Donaldson Company, Inc. | Aerosol separator |
| US20060207234A1 (en) * | 2005-03-18 | 2006-09-21 | Ward Bennett C | Coalescing filter elements comprising self-sustaining, bonded fiber structures |
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| US20060216491A1 (en) * | 2005-03-22 | 2006-09-28 | Ward Bennett C | Bonded structures formed form multicomponent fibers having elastomeric components for use as ink reservoirs |
| US7601659B2 (en) * | 2005-04-01 | 2009-10-13 | E.I. Du Pont De Nemours And Company | Dewatering fabrics |
| US20070253926A1 (en) * | 2006-04-28 | 2007-11-01 | Tadrowski Tami J | Packaged cleaning composition concentrate and method and system for forming a cleaning composition |
| DE202006007567U1 (de) | 2006-05-10 | 2006-07-27 | Colbond B.V. | Vliesstoff, getufteter Vliesstoff und die Stoffe enthaltende Erzeugnisse |
| EP2044260B1 (en) * | 2006-07-15 | 2010-02-24 | Colbond B.V. | Tufted nonwoven and bonded nonwoven |
| US8334034B2 (en) * | 2006-09-27 | 2012-12-18 | Filtrona Porous Technologies Corp. | Rapid release and anti-drip porous reservoirs |
| US20080187751A1 (en) * | 2007-02-02 | 2008-08-07 | Ward Bennett C | Porous Reservoirs Formed From Side-By-Side Bicomponent Fibers |
| US8286630B2 (en) * | 2007-02-21 | 2012-10-16 | Itswa Co., Ltd. | Apparatus for recycling moisture exhaled from worker within dry room to the worker |
| EP2117674A1 (en) | 2007-02-22 | 2009-11-18 | Donaldson Company, Inc. | Filter element and method |
| EP2125149A2 (en) | 2007-02-23 | 2009-12-02 | Donaldson Company, Inc. | Formed filter element |
| US20080251599A1 (en) * | 2007-04-11 | 2008-10-16 | Ward Bennett C | Vapor Emitting Device |
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| EP1994952B1 (en) * | 2007-05-21 | 2011-07-13 | Covidien AG | Medical heat and moisture exchanger (HME) |
| US20090301476A1 (en) * | 2008-06-05 | 2009-12-10 | Neil Alex Korneff | Heat and moisture exchange unit |
| US8561606B2 (en) * | 2008-06-05 | 2013-10-22 | Carefusion 2200, Inc. | Heat and moisture exchange unit |
| US20090301477A1 (en) * | 2008-06-05 | 2009-12-10 | Brian William Pierro | Heat and moisture exchange unit with check valve |
| US9885154B2 (en) | 2009-01-28 | 2018-02-06 | Donaldson Company, Inc. | Fibrous media |
| ES2477219T3 (es) * | 2009-02-17 | 2014-07-16 | Essentra Porous Technologies Corp. | Estructuras de fibras de transmisión de fluidos, de múltiples capas, que contienen nanofibras y método de fabricación de tales estructuras |
| US8721686B2 (en) | 2009-06-23 | 2014-05-13 | Osteomed Llc | Spinous process fusion implants and insertion, compression, and locking instrumentation |
| AU2010334464B2 (en) | 2009-12-22 | 2017-08-17 | Fisher & Paykel Healthcare Limited | Components for medical circuits |
| GB2509338B (en) | 2012-11-16 | 2017-09-27 | Essentra Packaging & Security Ltd | Moisture control label |
| WO2015052681A1 (en) | 2013-10-11 | 2015-04-16 | Fisher & Paykel Healthcare Limited | Hme and compact breathing apparatus |
| JP6579784B2 (ja) * | 2015-04-13 | 2019-09-25 | キヤノン株式会社 | ナノファイバシート及びその製造方法 |
| US10493404B2 (en) | 2015-11-24 | 2019-12-03 | Paragon Space Development Corporation | Heat and humidity removal unit for a self-contained breathing apparatus |
| CN115569281A (zh) | 2016-06-07 | 2023-01-06 | 菲舍尔和佩克尔保健有限公司 | 用于呼吸设备的呼吸回路部件 |
| EP3638072A4 (en) | 2017-06-15 | 2021-04-07 | Porex Technologies Corporation | INTEGRAL POROUS FIBER MEDIA WITH DIFFERENTIAL DENSITY OR FIBER DIAMETER |
| US11896770B2 (en) | 2017-11-13 | 2024-02-13 | Aut Ventures Limited | Fabric and method of manufacturing |
| WO2020176481A1 (en) * | 2019-02-26 | 2020-09-03 | Teleflex Medical Incorporated | Respiratory filter and condensate management apparatus |
| CN109893733A (zh) * | 2019-04-11 | 2019-06-18 | 魏玉存 | 一种麻醉机用麻醉气体回收装置 |
| US12285565B2 (en) | 2020-08-24 | 2025-04-29 | Teleflex Medical Incorporated | Self-sealing respiratory filter and condensate management apparatus |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2411660A (en) | 1943-05-22 | 1946-11-26 | Fred W Manning | Method of making filter cartridges, abrasive sheets, scouring pads, and the like |
| SE414708B (sv) * | 1972-11-06 | 1980-08-18 | Norabel Ab | Anordning for befuktning och uppvermning av inandningsluften vid trakeotomioch endotrakeal intubation |
| DE2529050C2 (de) * | 1975-06-30 | 1983-01-05 | Drägerwerk AG, 2400 Lübeck | Feuchtigkeitsaustauscher in Geräten für Atmung und Narkose |
| JPS5579996A (en) * | 1978-12-14 | 1980-06-16 | Teijin Ltd | Wet heat exchanger |
| US4438167A (en) | 1979-10-15 | 1984-03-20 | Biax Fiberfilm Corporation | Novel porous fabric |
| SU1342514A1 (ru) * | 1984-11-26 | 1987-10-07 | Всесоюзный научно-исследовательский институт горноспасательного дела | Влаготеплообменное устройство дыхательного аппарата на химически св занном кислороде |
| US5162074A (en) | 1987-10-02 | 1992-11-10 | Basf Corporation | Method of making plural component fibers |
| SE503089C2 (sv) | 1991-09-20 | 1996-03-25 | Gibeck Respiration Ab | Anordning för anslutning av en patient till en respirator innefattande en fuktvärmeväxlare samt användning av en fuktvärmeväxlare i denna anordning |
| GB9214716D0 (en) * | 1992-07-10 | 1992-08-19 | Emmark Technology | Tracheostomy filter |
| DE69322338D1 (de) | 1992-09-14 | 1999-01-14 | Minnesota Mining & Mfg | Superabsorberfaserzusammensetzung mit effizienter Einbehaltung von ausgeatmeter Hitze und Feuchtigkeit |
| US5349946A (en) | 1992-10-07 | 1994-09-27 | Mccomb R Carter | Microprocessor controlled flow regulated molecular humidifier |
| US5607766A (en) * | 1993-03-30 | 1997-03-04 | American Filtrona Corporation | Polyethylene terephthalate sheath/thermoplastic polymer core bicomponent fibers, method of making same and products formed therefrom |
| US5509430A (en) | 1993-12-14 | 1996-04-23 | American Filtrona Corporation | Bicomponent fibers and tobacco smoke filters formed therefrom |
| US5582907A (en) * | 1994-07-28 | 1996-12-10 | Pall Corporation | Melt-blown fibrous web |
| US5505768A (en) * | 1994-10-11 | 1996-04-09 | Altadonna; Anthony J. | Humidity moisture exchanger |
| US5829428A (en) | 1996-05-29 | 1998-11-03 | Alliance Pharmaceutical Corp. | Methods and apparatus for reducing the loss of respiratory promoters |
| AU8384598A (en) * | 1997-07-16 | 1999-02-10 | Pall Corporation | Breathing filter |
| US6103181A (en) * | 1999-02-17 | 2000-08-15 | Filtrona International Limited | Method and apparatus for spinning a web of mixed fibers, and products produced therefrom |
-
1999
- 1999-02-17 US US09/251,491 patent/US6330883B1/en not_active Expired - Fee Related
-
2000
- 2000-01-18 AU AU28500/00A patent/AU2850000A/en not_active Abandoned
- 2000-01-18 EP EP00906920A patent/EP1161281B1/en not_active Expired - Lifetime
- 2000-01-18 AT AT00906920T patent/ATE342085T1/de not_active IP Right Cessation
- 2000-01-18 BR BR0007867-0A patent/BR0007867A/pt not_active Application Discontinuation
- 2000-01-18 JP JP2000599468A patent/JP2002541880A/ja active Pending
- 2000-01-18 DE DE60031249T patent/DE60031249T2/de not_active Expired - Fee Related
- 2000-01-18 WO PCT/US2000/000909 patent/WO2000048682A1/en not_active Ceased
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8839791B2 (en) | 2011-06-22 | 2014-09-23 | Breathe Technologies, Inc. | Ventilation mask with integrated piloted exhalation valve |
| US8844533B2 (en) | 2011-06-22 | 2014-09-30 | Breathe Technologies, Inc. | Ventilation mask with integrated piloted exhalation valve |
| US9038635B2 (en) | 2011-06-22 | 2015-05-26 | Breathe Technologies, Inc. | Ventilation mask with integrated piloted exhalation valve |
| US9038634B2 (en) | 2011-06-22 | 2015-05-26 | Breathe Technologies, Inc. | Ventilation mask with integrated piloted exhalation valve |
| US9327092B2 (en) | 2011-06-22 | 2016-05-03 | Breathe Technologies, Inc. | Ventilation mask with integrated piloted exhalation valve |
| US9415183B2 (en) | 2011-06-22 | 2016-08-16 | Breathe Technologies, Inc. | Ventilation mask with integrated piloted exhalation valve |
| US9486602B2 (en) | 2011-06-22 | 2016-11-08 | Breathe Technologies, Inc. | Ventilation mask with integrated piloted exhalation valve and method of ventilating a patient using the same |
| US9878121B2 (en) | 2013-03-13 | 2018-01-30 | Breathe Technologies, Inc. | Ventilation mask with heat and moisture exchange device |
Also Published As
| Publication number | Publication date |
|---|---|
| US6330883B1 (en) | 2001-12-18 |
| EP1161281B1 (en) | 2006-10-11 |
| EP1161281A4 (en) | 2004-09-01 |
| DE60031249D1 (de) | 2006-11-23 |
| EP1161281A1 (en) | 2001-12-12 |
| AU2850000A (en) | 2000-09-04 |
| JP2002541880A (ja) | 2002-12-10 |
| BR0007867A (pt) | 2001-11-06 |
| WO2000048682A1 (en) | 2000-08-24 |
| ATE342085T1 (de) | 2006-11-15 |
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| Date | Code | Title | Description |
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| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |