EP0879081A2 - Filtrage - Google Patents
FiltrageInfo
- Publication number
- EP0879081A2 EP0879081A2 EP96935048A EP96935048A EP0879081A2 EP 0879081 A2 EP0879081 A2 EP 0879081A2 EP 96935048 A EP96935048 A EP 96935048A EP 96935048 A EP96935048 A EP 96935048A EP 0879081 A2 EP0879081 A2 EP 0879081A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter
- elements
- housing
- filter unit
- hydrophobic
- 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.)
- Withdrawn
Links
- 238000001914 filtration Methods 0.000 title claims description 24
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 52
- 239000000463 material Substances 0.000 claims description 31
- 125000006850 spacer group Chemical group 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 14
- 229920001410 Microfiber Polymers 0.000 claims description 13
- 239000003658 microfiber Substances 0.000 claims description 13
- 239000004094 surface-active agent Substances 0.000 claims description 12
- 230000000241 respiratory effect Effects 0.000 claims description 9
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000000049 pigment Substances 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 6
- 206010002091 Anaesthesia Diseases 0.000 claims description 5
- 238000001949 anaesthesia Methods 0.000 claims description 5
- 230000037005 anaesthesia Effects 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 4
- 230000001580 bacterial effect Effects 0.000 claims description 3
- 230000003612 virological effect Effects 0.000 claims description 3
- 239000002801 charged material Substances 0.000 claims description 2
- 238000005304 joining Methods 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 claims 5
- 239000007789 gas Substances 0.000 description 16
- 230000008901 benefit Effects 0.000 description 8
- 241000894006 Bacteria Species 0.000 description 6
- 241000700605 Viruses Species 0.000 description 6
- 239000004743 Polypropylene Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- -1 polypropylene Polymers 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000012634 fragment Substances 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000122205 Chamaeleonidae Species 0.000 description 1
- 229920005482 Oroglas® Polymers 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 125000003158 alcohol group Polymers 0.000 description 1
- 150000001298 alcohols Polymers 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B23/00—Filters for breathing-protection purposes
- A62B23/02—Filters for breathing-protection purposes for respirators
Definitions
- the filter unit comprises two said hydrophobic elements arranged to substantially prevent ingress of moisture to the or each filter element from each side of the filter unit.
- the elements comprise a heat and moisture exchange element.
- At least one said filter element comprises an electrostatically charged material.
- the filter unit may comprise two said hydrophobic elements, wherein the or each said filter element is disposed intermediate said hydrophobic elements.
- the convex surface formation of the filter unit may advantageously be obtained by having a spacer element or elements which have convex faces and arranging the elements of the filter unit about those faces.
- generally convex filter surfaces can alternatively be obtained by tightly compressing the joined edges of the multi- element filter unit.
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Filtering Materials (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
La présente invention concerne une unité de filtre (22) se montant dans un logement pour filtre (12, 14). Cette unité de filtre est constituée de plusieurs éléments (34, 36, 38, 40) comprenant au moins un élément de filtre (34, 36) et un élément hydrophobe (38) ainsi qu'un organe en non-tissé (42, 44) contenant les éléments de filtre. Les bordures opposées de l'organe en non-tissé se rejoignent de façon à maintenir les éléments de filtre dans une relation de juxtaposition prédéfinie, sous l'effet de l'organe en non-tissé. Lorsque ces éléments sont montés dans l'unité de filtre, le maintien par l'organe en non-tissé des éléments de filtre dans la relation voulue, facilite le montage de l'appareil filtrant intégrant ces éléments.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9522053A GB2306346A (en) | 1995-10-27 | 1995-10-27 | Filtering apparatus for use in respirators |
| GB9522053 | 1995-10-27 | ||
| PCT/GB1996/002573 WO1997015376A2 (fr) | 1995-10-27 | 1996-10-18 | Filtrage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0879081A2 true EP0879081A2 (fr) | 1998-11-25 |
Family
ID=10783002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96935048A Withdrawn EP0879081A2 (fr) | 1995-10-27 | 1996-10-18 | Filtrage |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0879081A2 (fr) |
| AU (1) | AU7314896A (fr) |
| GB (1) | GB2306346A (fr) |
| WO (1) | WO1997015376A2 (fr) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI102918B (fi) * | 1996-07-02 | 1999-03-15 | Instrumentarium Oy | Mittausanturi ja järjestelmä kaasun virtausmittausta varten |
| US6622816B2 (en) | 2001-04-24 | 2003-09-23 | Cabot Safety Intermediate Corp. | Personal protective devices having an energy activated material |
| US7913640B2 (en) * | 2007-11-09 | 2011-03-29 | Kimberly-Clark Worldwide, Inc. | Moisture indicator for heat and moisture exchange devices |
| AU2012294959C1 (en) | 2011-08-10 | 2025-03-06 | Fisher & Paykel Healthcare Limited | Conduit connector for a patient breathing device |
| CN103721333A (zh) * | 2013-12-13 | 2014-04-16 | 科迈（常州）电子有限公司 | 一种用于呼吸机的过滤器 |
| CN112891694B (zh) | 2015-03-31 | 2026-03-17 | 费雪派克医疗保健有限公司 | 用于在呼吸支持系统中使用的设备 |
| CN108472468B (zh) | 2015-09-04 | 2024-03-08 | 费雪派克医疗保健有限公司 | 导管连接器 |
| USD809656S1 (en) | 2016-06-10 | 2018-02-06 | Fisher & Paykel Healthcare Limited | Connector for a breathing circuit |
| USD1006981S1 (en) | 2019-09-06 | 2023-12-05 | Fisher & Paykel Healthcare Limited | Breathing conduit |
| USD948027S1 (en) | 2019-09-10 | 2022-04-05 | Fisher & Paykel Healthcare Limited | Connector for a breathing conduit |
| USD940861S1 (en) | 2020-03-03 | 2022-01-11 | Fisher & Paykel Healthcare Limited | Connector for a respiratory system conduit |
| USD974551S1 (en) | 2020-12-09 | 2023-01-03 | Fisher & Paykel Healthcare Limited | Connector assembly and connector |
| USD1073919S1 (en) | 2021-05-17 | 2025-05-06 | Fisher & Paykel Healthcare Limited | Respiratory system conduit with connector |
| USD995758S1 (en) | 2021-06-11 | 2023-08-15 | Fisher & Paykel Healthcare Limited | Tube assembly and connector |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4022695A (en) * | 1975-11-10 | 1977-05-10 | Air Filters, Inc. | Removable filter cloth for a leaf filter of a pressure vessel |
| IT1079883B (it) * | 1976-07-06 | 1985-05-13 | Matburn Holdings Ltd | Filtro per sacchetto per colostomia od ileostomia e procedimento per produrlo |
| US4148732A (en) * | 1977-04-05 | 1979-04-10 | Burrow Clovis E | Bacteria filter unit |
| NL7806261A (nl) * | 1978-06-08 | 1979-12-11 | Hilaire Lodewijk Cornelis Hame | Voorwerp als hulpmiddel ter beoefening van het schaak- spel. |
| FR2479014A1 (fr) * | 1980-03-31 | 1981-10-02 | Matburn Holdings Ltd | Sacs de drainage chirurgical |
| JPS58119303A (ja) * | 1982-01-07 | 1983-07-15 | Nitto Electric Ind Co Ltd | 膜分離処理方法 |
| GB2148740B (en) * | 1983-10-31 | 1988-06-15 | La Pena Michael De | Gas treatment device |
| US4561868A (en) * | 1984-07-02 | 1985-12-31 | Von Reis Charles | Canister filter assembly |
| US5038775A (en) * | 1988-01-04 | 1991-08-13 | Her Majesty The Queen In Right Of Canada As Represented By The Minister Of National Defence Of Canadian Government | Plastic scrim |
| DE4122241A1 (de) * | 1991-03-13 | 1993-01-07 | Weppler Filter Gmbh | Filter |
| JPH084697B2 (ja) * | 1991-03-16 | 1996-01-24 | 東レ株式会社 | 滴下性通気フィルターを用いた空気清浄システム |
| GB2267840B (en) * | 1992-06-19 | 1995-09-20 | Intersurgical Ltd | Improvements in heat and moisture exchangers |
| GB9304658D0 (en) * | 1993-03-08 | 1993-04-28 | Welland Medical Ltd | Flatus filters |
-
1995
- 1995-10-27 GB GB9522053A patent/GB2306346A/en not_active Withdrawn
-
1996
- 1996-10-18 AU AU73148/96A patent/AU7314896A/en not_active Abandoned
- 1996-10-18 EP EP96935048A patent/EP0879081A2/fr not_active Withdrawn
- 1996-10-18 WO PCT/GB1996/002573 patent/WO1997015376A2/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9715376A3 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1997015376A3 (fr) | 1997-07-17 |
| WO1997015376A2 (fr) | 1997-05-01 |
| AU7314896A (en) | 1997-05-15 |
| GB9522053D0 (en) | 1996-01-03 |
| GB2306346A (en) | 1997-05-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 19980810 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): DE GB IT NL SE |
|
| RBV | Designated contracting states (corrected) |
Designated state(s): DE GB IT NL SE |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
| 18W | Application withdrawn |
Withdrawal date: 20000602 |