CA2628699C - Sonde de fin de duree de vie pour appareil respiratoire - Google Patents

Sonde de fin de duree de vie pour appareil respiratoire Download PDF

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Publication number
CA2628699C
CA2628699C CA2628699A CA2628699A CA2628699C CA 2628699 C CA2628699 C CA 2628699C CA 2628699 A CA2628699 A CA 2628699A CA 2628699 A CA2628699 A CA 2628699A CA 2628699 C CA2628699 C CA 2628699C
Authority
CA
Canada
Prior art keywords
indicator
housing
light
support
film
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.)
Active
Application number
CA2628699A
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English (en)
Other versions
CA2628699A1 (fr
Inventor
E.J. Scott Duncan
David B. Pedersen
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.)
Minister of National Defence of Canada
Original Assignee
Minister of National Defence of Canada
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 Minister of National Defence of Canada filed Critical Minister of National Defence of Canada
Priority to CA2628699A priority Critical patent/CA2628699C/fr
Publication of CA2628699A1 publication Critical patent/CA2628699A1/fr
Application granted granted Critical
Publication of CA2628699C publication Critical patent/CA2628699C/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/55—Specular reflectivity
    • G01N21/552—Attenuated total reflection
    • G01N21/553—Attenuated total reflection and using surface plasmons
    • G01N21/554—Attenuated total reflection and using surface plasmons detecting the surface plasmon resonance of nanostructured metals, e.g. localised surface plasmon resonance
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B27/00—Methods or devices for testing respiratory or breathing apparatus for high altitudes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/45—Gas separation or purification devices adapted for specific applications
    • B01D2259/4533—Gas separation or purification devices adapted for specific applications for medical purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0454—Controlling adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/49—Materials comprising an indicator, e.g. colour indicator, pH-indicator

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)

Abstract

Un indicateur de fin de durée de vie pour un filtre absorbant comprend un tube qui contient un film de nanoparticules de métaux nobles sur un substrat optiquement transparent, le substrat étant perpendiculaire à laxe du tube. Une ouverture dans le tube adjacent au film permet aux vapeurs chimiques de saccumuler dans le tube et dêtre absorbées par le film. Une source lumineuse à une extrémité du tube et un photodétecteur à lautre extrémité déterminent la quantité de lumière absorbée par le film de nanoparticules à la suite de lexposition aux vapeurs chimiques. Un signal du photodétecteur est appliqué à un processeur électronique qui détermine latténuation de la lumière par le film et le processeur est connecté à un indicateur qui procure une indication de lexposition du film aux vapeurs.
CA2628699A 2008-04-08 2008-04-08 Sonde de fin de duree de vie pour appareil respiratoire Active CA2628699C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2628699A CA2628699C (fr) 2008-04-08 2008-04-08 Sonde de fin de duree de vie pour appareil respiratoire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA2628699A CA2628699C (fr) 2008-04-08 2008-04-08 Sonde de fin de duree de vie pour appareil respiratoire

Publications (2)

Publication Number Publication Date
CA2628699A1 CA2628699A1 (fr) 2009-10-08
CA2628699C true CA2628699C (fr) 2015-03-24

Family

ID=41161211

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2628699A Active CA2628699C (fr) 2008-04-08 2008-04-08 Sonde de fin de duree de vie pour appareil respiratoire

Country Status (1)

Country Link
CA (1) CA2628699C (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8821621B2 (en) 2010-04-02 2014-09-02 3M Innovative Properties Company Filter systems including optical analyte sensors and optical readers
GB2494606B (en) 2010-08-06 2017-02-01 Scott Tech Inc Method and apparatus for integrating chemical and environmental sensors into an air purification filter through a reusable sensor post
US9011584B2 (en) * 2011-08-25 2015-04-21 Honeywell International Inc. End of service life indicator for respirator
WO2016033790A1 (fr) 2014-09-05 2016-03-10 Honeywell International Inc. Indicateur de fin de durée de vie utile pour appareil respiratoire
CN114306968B (zh) * 2021-12-15 2023-10-27 安丹达工业技术(上海)有限公司 一种动力送风空气过滤呼吸器及其控制方法

Also Published As

Publication number Publication date
CA2628699A1 (fr) 2009-10-08

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Effective date: 20130308