音響分析器で、空気中の湿気成分を検出する方法、音響分析器で、空気中の湿気成分を検出し、乾燥状態のガス試料の補正された成分情報を提供する方法、音響分析器で、酸素/空気ガス試料の酸素含量の成分情報を決定する方法、及び、機械式呼吸補助装置

Title:

Document Type and Number:

Japanese Patent JP4286174

Kind Code:

B2

Abstract:

A mechanical breathing aid (2) comprises first and second inlets (4;6) connectable in mutual exclusion to a source of air and a source of oxygen. A mixing location (10) is provided in gas communication with the first and the second inlets (4;6) at which controlled amounts of air and oxygen from the respective inlets (4;6) are mixed. An acoustic analyser (16) is configured to operate during a measurement procedure to access a moisture content value for air from the source of air, to generate acoustic velocity related information for acoustic energy after interaction with the breathing gas and to determine therefrom an oxygen content and to operate during a calibration procedure to generate acoustic velocity related information for acoustic energy after interaction with air from the source of air and to determine therefrom an oxygen content value for the air from which is determined a moisture content value for air.

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JP4861191	Acoustic mechanical detector

Inventors:

Eric Cardelius
Orchestra larsson
Lars Scogrund

Application Number:

JP2004105725A

Publication Date:

June 24, 2009

Filing Date:

March 31, 2004

Export Citation:

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Assignee:

Maquet Critical Care AB

International Classes:

G01N29/02; A61M16/12; G01N7/00; G01N29/00; G01N29/024; G01N29/22; G01N29/30; G01N

Domestic Patent References:

JP2002306603A
JP7209264A
JP61269061A
JP2002214203A
JP2002214012A
JP2004325297A

Attorney, Agent or Firm:

Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard

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