EP0879081A2 - Filtration - Google Patents
FiltrationInfo
- 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- Withdrawn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)
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 (en) | 1995-10-27 | 1996-10-18 | Filtering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0879081A2 true EP0879081A2 (de) | 1998-11-25 |
Family
ID=10783002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96935048A Withdrawn EP0879081A2 (de) | 1995-10-27 | 1996-10-18 | Filtration |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0879081A2 (de) |
| AU (1) | AU7314896A (de) |
| GB (1) | GB2306346A (de) |
| WO (1) | WO1997015376A2 (de) |
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/de not_active Withdrawn
- 1996-10-18 WO PCT/GB1996/002573 patent/WO1997015376A2/en not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9715376A3 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1997015376A3 (en) | 1997-07-17 |
| WO1997015376A2 (en) | 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 |