IT1260845B - Filtri scambiatori di calore ed umidita'. - Google Patents
Filtri scambiatori di calore ed umidita'.Info
- Publication number
- IT1260845B IT1260845B ITTO930424A ITTO930424A IT1260845B IT 1260845 B IT1260845 B IT 1260845B IT TO930424 A ITTO930424 A IT TO930424A IT TO930424 A ITTO930424 A IT TO930424A IT 1260845 B IT1260845 B IT 1260845B
- Authority
- IT
- Italy
- Prior art keywords
- humidity
- heat
- filter
- hydrophilic
- patient
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
- B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
-
- 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
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/1045—Devices for humidifying or heating the inspired gas by using recovered moisture or heat from the expired gas
-
- 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
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/105—Filters
- A61M16/1055—Filters bacterial
-
- 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
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/105—Filters
- A61M16/106—Filters in a path
- A61M16/1065—Filters in a path in the expiratory path
-
- 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
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/105—Filters
- A61M16/106—Filters in a path
- A61M16/107—Filters in a path in the inspiratory path
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/18—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being cellulose or derivatives thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2068—Other inorganic materials, e.g. ceramics
- B01D39/2082—Other inorganic materials, e.g. ceramics the material being filamentary or fibrous
- B01D39/2089—Other inorganic materials, e.g. ceramics the material being filamentary or fibrous otherwise bonded, e.g. by resins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/003—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions including coalescing means for the separation of liquid
- B01D46/0031—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions including coalescing means for the separation of liquid with collecting, draining means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/16—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces arranged on non-filtering conveyors or supports
-
- 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
- A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
- A61M16/0816—Joints or connectors
- A61M16/0833—T- or Y-type connectors, e.g. Y-piece
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2273/00—Operation of filters specially adapted for separating dispersed particles from gases or vapours
- B01D2273/18—Testing of filters, filter elements, sealings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2275/00—Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
- B01D2275/10—Multiple layers
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Hematology (AREA)
- Biomedical Technology (AREA)
- Animal Behavior & Ethology (AREA)
- Anesthesiology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pulmonology (AREA)
- Heart & Thoracic Surgery (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Geology (AREA)
- Filtering Materials (AREA)
- External Artificial Organs (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Un filtro scambiatore di calore ed umidità comprende uno strato di mezzo idrofobo (10) insieme ad uno strato di mezzo idrofilo (11). Il filtro può essere usato in campo medico con un paziente che impiega sistemi di respirazione aperti, con il materiale idrofilo a valle rispetto al paziente sul percorso di esalazione. Il materiale idrofobo (10) impedisce il passaggio di goccioline e globuli di acqua nel modo noto ed ha pure un punto di gorgogliamento sufficientemente elevato per intrappolare i microorganismi. Il materiale idrofilo (11) cattura il vapore d'acqua che passa attraverso il materiale idrofobo e permette quindi di trattenere una quantità maggiore di umidità da parte del filtro. Questa umidità viene ricuperata dai gas inalati e serve ad assicurare a detti gas una quantità addizionale di umidità.Fig. 1.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB929212399A GB9212399D0 (en) | 1992-06-11 | 1992-06-11 | Heat and moisture exchanging filters |
Publications (3)
Publication Number | Publication Date |
---|---|
ITTO930424A0 ITTO930424A0 (it) | 1993-06-10 |
ITTO930424A1 ITTO930424A1 (it) | 1994-12-10 |
IT1260845B true IT1260845B (it) | 1996-04-23 |
Family
ID=10716927
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITTO930424A IT1260845B (it) | 1992-06-11 | 1993-06-10 | Filtri scambiatori di calore ed umidita'. |
Country Status (16)
Country | Link |
---|---|
JP (1) | JPH0663141A (it) |
AT (1) | AT403657B (it) |
AU (1) | AU667538B2 (it) |
CA (1) | CA2098132C (it) |
CH (1) | CH687297A5 (it) |
DE (1) | DE4319458B4 (it) |
DK (1) | DK174117B1 (it) |
ES (1) | ES2074002B1 (it) |
FI (1) | FI110236B (it) |
FR (2) | FR2692153A1 (it) |
GB (2) | GB9212399D0 (it) |
GR (1) | GR930100236A (it) |
IT (1) | IT1260845B (it) |
NL (1) | NL194750C (it) |
NO (1) | NO302861B1 (it) |
SE (1) | SE510976C3 (it) |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1009575A3 (nl) * | 1995-08-28 | 1997-05-06 | Anthony Jean M | Toestel om warmte- en vochtverlies te compenseren in een inrichting die lucht aan een patient toedient of restitueert. |
US5575279A (en) * | 1996-01-02 | 1996-11-19 | Emergency Filtration Products, Inc. | Dual-filtered rotary isolation valve for resusciation |
GB9704241D0 (en) * | 1997-02-28 | 1997-04-16 | Smiths Industries Plc | Gas-treatment devices |
AU8384598A (en) | 1997-07-16 | 1999-02-10 | Pall Corporation | Breathing filter |
FR2770137B1 (fr) | 1997-10-27 | 2000-01-28 | Georges Boussignac | Dispositif d'assistance respiratoire |
NL1007699C2 (nl) * | 1997-12-04 | 1999-06-09 | Medisize Bv | Beademingssysteem. |
DE19903732B4 (de) | 1999-01-30 | 2007-12-13 | Gottlieb Weinmann - Geräte für Medizin und Arbeitsschutz - GmbH + Co KG | Vorrichtung zur Beatmung sowie Verfahren zur Aufbereitung eines Beatmungsgases |
EP1068889A1 (en) | 1999-07-16 | 2001-01-17 | 3M Innovative Properties Company | High efficiency medical breathing system filter based on a filtration medium of a nonwoven web of thermoplastic resin fibers |
DE19950717B4 (de) * | 1999-10-21 | 2004-06-24 | DRäGER AEROSPACE GMBH | Atemmaske |
EP2110168A1 (en) * | 2000-12-01 | 2009-10-21 | Millipore Corporation | Barrier filter with hydrophilic and hydrophobic membrane parts |
KR100436438B1 (ko) * | 2001-11-06 | 2004-06-16 | 김유복 | 숯이 함유된 엠보싱 멀칭비닐의 제조방법 |
DE10238683A1 (de) * | 2002-08-19 | 2004-03-11 | Rist, Max, Dr. | Vorrichtung zur Beeinflussung von Gasflüssen |
US8567391B2 (en) | 2006-10-10 | 2013-10-29 | Furrex Co., Ltd. | Heat and moisture exchanger, heat and moisture exchanging device, and mask |
JP5124570B2 (ja) * | 2006-10-10 | 2013-01-23 | 株式会社ファーレックス | 患者呼吸用湿熱交換器 |
US8079574B2 (en) | 2007-05-16 | 2011-12-20 | ZenPure Corp. | Membrane based contactor module for mass and heat transfer |
US8252081B2 (en) | 2007-07-17 | 2012-08-28 | Teleflex Medical Incorporated | Water dissipation device and method |
US8105410B2 (en) * | 2007-07-17 | 2012-01-31 | Teleflex Medical Incorporated | Water dissipation device with capillary action |
US8236081B2 (en) | 2007-07-17 | 2012-08-07 | Teleflex Medical Incorporated | Permeable membrane water dissipation device |
DE102008049177B3 (de) * | 2008-09-26 | 2010-02-04 | Dräger Medical AG & Co. KG | Vorrichtung zur Steuerung des Atemgasflusses |
GB0919903D0 (en) * | 2009-11-13 | 2009-12-30 | Cambridge Design Res Llp | Ventilator gas humidification device |
EP2647401A1 (en) * | 2012-04-04 | 2013-10-09 | Covidien AG | A filter of absorbing, retaining and releasing heat and/or moisture of exhaled and inhaled gas and method of forming such a filter |
AU2013253097B2 (en) | 2012-04-27 | 2018-11-08 | Fisher & Paykel Healthcare Limited | Usability features for respiratory humidification system |
GB2514477A (en) | 2013-04-04 | 2014-11-26 | Forderung Von Medizin Bio Und Umwelttechnologien E V Fachsektion Dresden Ges | A particle filtering material |
AU2014319042B2 (en) | 2013-09-13 | 2019-03-28 | Fisher And Paykel Healthcare Limited | Connections for humidifcation system |
US10449319B2 (en) | 2014-02-07 | 2019-10-22 | Fisher & Paykel Healthcare Limited | Respiratory humidification system |
EP4342559A3 (en) * | 2014-05-12 | 2024-06-26 | Saint-Gobain Performance Plastics Corporation | Liquid recovery filter |
EP3607988A1 (en) | 2014-06-03 | 2020-02-12 | Fisher & Paykel Healthcare Limited | Flow mixers for respiratory therapy systems |
US20170189727A1 (en) * | 2014-06-04 | 2017-07-06 | Free Air, Inc. | Systems and methods for removing ultra-fine particles from air |
WO2018106126A1 (en) | 2016-12-07 | 2018-06-14 | Fisher And Paykel Healthcare Limited | Sensing arrangements for medical devices |
WO2021176291A1 (en) * | 2020-03-06 | 2021-09-10 | 3M Innovative Properties Company | Counterflow energy recovery ventilator core comprising seamless pleated support media |
US10926209B1 (en) | 2020-06-05 | 2021-02-23 | Celios Corporation | Air filtration system, air filtration device, and air filtration module for use therewith |
US10870076B1 (en) | 2020-06-05 | 2020-12-22 | Celios Corporation | Air filtration system, air filtration device, and air filtration module for use therewith |
EP4176242B1 (en) * | 2020-07-02 | 2024-05-15 | Philip Morris Products S.A. | Test chamber apparatus for assessing filter media |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1261247A (fr) * | 1960-03-25 | 1961-05-19 | Saint Gobain | Matériau incombustible filtrant, notamment pour la filtration des gaz |
GB933852A (en) * | 1961-07-10 | 1963-08-14 | Fram Corp | Separator for immiscible fluids |
JPS4936904A (it) * | 1972-08-15 | 1974-04-05 | ||
GB1485128A (en) * | 1974-12-17 | 1977-09-08 | Marshall D | Bonded two-stage high efficiency filter |
JPS523911Y2 (it) * | 1975-03-20 | 1977-01-27 | ||
DE2851564A1 (de) * | 1978-11-29 | 1980-06-04 | Siemens Ag | Vorrichtung zum anwaermen und befeuchten eines beatmungsgases |
US4360018A (en) * | 1979-12-20 | 1982-11-23 | American Hospital Supply Corporation | Anesthesia system and method of filtering respiratory gas |
US4344999A (en) * | 1980-04-22 | 1982-08-17 | W. L. Gore & Associates, Inc. | Breathable laminate |
US4459139A (en) * | 1981-09-14 | 1984-07-10 | Gelman Sciences Inc. | Disposable filter device and liquid aspirating system incorporating same |
JPS6068093A (ja) * | 1983-09-21 | 1985-04-18 | Mitsubishi Rayon Co Ltd | 水処理システム |
SU1342514A1 (ru) * | 1984-11-26 | 1987-10-07 | Всесоюзный научно-исследовательский институт горноспасательного дела | Влаготеплообменное устройство дыхательного аппарата на химически св занном кислороде |
EP0246917B1 (en) * | 1986-05-23 | 1992-07-22 | W.L. Gore & Associates, Inc. | High performance gas filter |
AU7943387A (en) * | 1986-10-16 | 1988-04-21 | Intertech Resources Inc. | Heat and moisture exchanger for respiratory gases |
US5022394A (en) * | 1988-10-11 | 1991-06-11 | Homecare Of Dearborn | Heat and moisture exchanger device for tracheostomy patients |
DD278501A1 (de) * | 1988-12-27 | 1990-05-09 | Medizin Labortechnik Veb K | Vorrichtung zum anwaermen und befeuchten von beatmungsgasen |
GB8916361D0 (en) * | 1989-07-18 | 1989-09-06 | Smiths Industries Plc | Filters |
DE3942813A1 (de) * | 1989-12-23 | 1991-06-27 | Akzo Gmbh | Laminat |
-
1992
- 1992-06-11 GB GB929212399A patent/GB9212399D0/en active Pending
-
1993
- 1993-06-08 GR GR930100236A patent/GR930100236A/el unknown
- 1993-06-09 AT AT0112593A patent/AT403657B/de not_active IP Right Cessation
- 1993-06-09 GB GB9311889A patent/GB2267661B/en not_active Expired - Lifetime
- 1993-06-09 SE SE9301970A patent/SE510976C3/sv unknown
- 1993-06-10 ES ES09301272A patent/ES2074002B1/es not_active Expired - Fee Related
- 1993-06-10 FI FI932661A patent/FI110236B/fi not_active IP Right Cessation
- 1993-06-10 CA CA002098132A patent/CA2098132C/en not_active Expired - Lifetime
- 1993-06-10 NO NO932126A patent/NO302861B1/no not_active IP Right Cessation
- 1993-06-10 IT ITTO930424A patent/IT1260845B/it active IP Right Grant
- 1993-06-11 DK DK199300701A patent/DK174117B1/da not_active IP Right Cessation
- 1993-06-11 AU AU40184/93A patent/AU667538B2/en not_active Expired
- 1993-06-11 DE DE4319458A patent/DE4319458B4/de not_active Expired - Lifetime
- 1993-06-11 CH CH01755/93A patent/CH687297A5/de not_active IP Right Cessation
- 1993-06-11 NL NL9301022A patent/NL194750C/nl not_active IP Right Cessation
- 1993-06-11 JP JP5140876A patent/JPH0663141A/ja active Pending
- 1993-06-11 FR FR9307091A patent/FR2692153A1/fr active Pending
-
1997
- 1997-06-18 FR FR9707568A patent/FR2749173B1/fr not_active Expired - Fee Related
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970628 |