CA2057862A1 - Respiratory filter - Google Patents

Respiratory filter

Info

Publication number
CA2057862A1
CA2057862A1 CA2057862A CA2057862A CA2057862A1 CA 2057862 A1 CA2057862 A1 CA 2057862A1 CA 2057862 A CA2057862 A CA 2057862A CA 2057862 A CA2057862 A CA 2057862A CA 2057862 A1 CA2057862 A1 CA 2057862A1
Authority
CA
Canada
Prior art keywords
housing
pct
ports
filter
date nov
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.)
Granted
Application number
CA2057862A
Other languages
French (fr)
Other versions
CA2057862C (en
Inventor
Richard Banfield Hicks
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Intersurgical AG
Original Assignee
Richard Banfield Hicks
Intersurgical (Guernsey) Limited
Intersurgical Limited
Intersurgical Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Richard Banfield Hicks, Intersurgical (Guernsey) Limited, Intersurgical Limited, Intersurgical Ag filed Critical Richard Banfield Hicks
Publication of CA2057862A1 publication Critical patent/CA2057862A1/en
Application granted granted Critical
Publication of CA2057862C publication Critical patent/CA2057862C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10Preparation of respiratory gases or vapours
    • A61M16/105Filters
    • A61M16/106Filters in a path
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/08Bellows; Connecting tubes ; Water traps; Patient circuits
    • A61M16/0816Joints or connectors
    • A61M16/0833T- or Y-type connectors, e.g. Y-piece
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10Preparation of respiratory gases or vapours
    • A61M16/105Filters
    • A61M16/1055Filters bacterial
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10Preparation of respiratory gases or vapours
    • A61M16/1045Devices for humidifying or heating the inspired gas by using recovered moisture or heat from the expired gas

Abstract

PCT No. PCT/GB90/00795 Sec. 371 Date Nov. 18, 1991 Sec. 102(e) Date Nov. 18, 1991 PCT Filed May 21, 1990 PCT Pub. No. WO90/14122 PCT Pub. Date Nov. 29, 1990.A respiratory filter included in a respiratory system used in anaesthesia and/or patient ventilation, comprises a two-part housing 15 and 16 having coaxial ports 13 and 14 for connection to breathing tubes. Optionally a heat/moisture exchanger 25 spans the housing in addition to a planar filter member 24 which is held between parts 15 and 16 so as to be perpendicular to the direction of gas flow through the housing. According to the invention deflectors 30 and 19 are located relative to the ports 13 and 14 so as to spread incoming gases over the opposed surfaces of members 24 and 25 in order to utilize their total surface areas, thereby reducing the overall size of the filter and reducing "apparatus dead space". Each deflector has a through bore so as to utilize also the central area of the filter. Curved fins 26 and 27 radiate from each port 13 and 14. In an alternative embodiment of the invention the housing has two ports at one end, each having an associated deflector, and the fins 25 or 27 are omitted on the housing part having the two ports.
CA002057862A 1989-05-19 1990-05-21 Respiratory filter Expired - Lifetime CA2057862C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB898911627A GB8911627D0 (en) 1989-05-19 1989-05-19 Improvements in filters
GB8911627.1 1989-05-19
PCT/GB1990/000795 WO1990014122A1 (en) 1989-05-19 1990-05-21 Respiratory filter

Publications (2)

Publication Number Publication Date
CA2057862A1 true CA2057862A1 (en) 1990-11-20
CA2057862C CA2057862C (en) 2000-11-21

Family

ID=10657079

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002057862A Expired - Lifetime CA2057862C (en) 1989-05-19 1990-05-21 Respiratory filter

Country Status (10)

Country Link
US (1) US5195527A (en)
EP (1) EP0472612B1 (en)
JP (1) JP2838439B2 (en)
AT (1) ATE109989T1 (en)
AU (1) AU641924B2 (en)
CA (1) CA2057862C (en)
DE (1) DE69011682T2 (en)
ES (1) ES2057567T3 (en)
GB (2) GB8911627D0 (en)
WO (1) WO1990014122A1 (en)

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Also Published As

Publication number Publication date
US5195527A (en) 1993-03-23
DE69011682T2 (en) 1995-02-02
GB9011319D0 (en) 1990-07-11
GB2231509A (en) 1990-11-21
JPH04507204A (en) 1992-12-17
EP0472612A1 (en) 1992-03-04
GB2231509B (en) 1993-03-10
AU5666690A (en) 1990-12-18
DE69011682D1 (en) 1994-09-22
EP0472612B1 (en) 1994-08-17
WO1990014122A1 (en) 1990-11-29
GB8911627D0 (en) 1989-07-05
JP2838439B2 (en) 1998-12-16
AU641924B2 (en) 1993-10-07
ES2057567T3 (en) 1994-10-16
ATE109989T1 (en) 1994-09-15
CA2057862C (en) 2000-11-21

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