WO2001056454A3 - Indirect calorimeter for medical applications - Google Patents

Indirect calorimeter for medical applications Download PDF

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Publication number
WO2001056454A3
WO2001056454A3 PCT/US2001/003625 US0103625W WO0156454A3 WO 2001056454 A3 WO2001056454 A3 WO 2001056454A3 US 0103625 W US0103625 W US 0103625W WO 0156454 A3 WO0156454 A3 WO 0156454A3
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WO
WIPO (PCT)
Prior art keywords
respiratory
flow module
module
patient
flow
Prior art date
Application number
PCT/US2001/003625
Other languages
French (fr)
Other versions
WO2001056454A2 (en
Inventor
James R Mault
Edwin M Pearce Jr
Original Assignee
Healthetech Inc
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
Priority claimed from US09/630,398 external-priority patent/US6468222B1/en
Application filed by Healthetech Inc filed Critical Healthetech Inc
Priority to JP2001556155A priority Critical patent/JP2004537328A/en
Priority to AU3331101A priority patent/AU3331101A/en
Priority to CA002398949A priority patent/CA2398949A1/en
Priority to EP01905431A priority patent/EP1251773A4/en
Publication of WO2001056454A2 publication Critical patent/WO2001056454A2/en
Publication of WO2001056454A3 publication Critical patent/WO2001056454A3/en

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    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02818—Density, viscosity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02836—Flow rate, liquid level

Abstract

An improved respiratory analyzer (20) comprises a disposable flow module (30) and non-disposable electronics module (32). An improved ventilator system (10) comprises a supply of respiratory gases, a ventilator line (16) for directing the respiratory gases to a patient, a flow module holder located in series with the ventilator line into which a flow module can be inserted, and an electronics module which connects to the flow module. In a preferred embodiment, the flow module and electronics module operate in combination to provide the functionality of an indirect calorimeter, so as to determine the metabolic rate of the patient. Feeding of an intubated patient can be controlled using determined patient metabolic rates. Other respiratory parameters can be determined by the system, such as a peak flow, tidal volume, end-tidal concentrations, and respiratory quotient. The system provides a non-invasive method of cardiac output determination. A flow module can also be inserted into the mouth or internal respiratory tube of a person.
PCT/US2001/003625 2000-02-02 2001-02-02 Indirect calorimeter for medical applications WO2001056454A2 (en)

Priority Applications (4)

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JP2001556155A JP2004537328A (en) 2000-02-02 2001-02-02 Medical indirect calorimeter
AU3331101A AU3331101A (en) 2000-02-02 2001-02-02 Indirect calorimeter for medical applications
CA002398949A CA2398949A1 (en) 2000-02-02 2001-02-02 Indirect calorimeter for medical applications
EP01905431A EP1251773A4 (en) 2000-02-02 2001-02-02 Indirect calorimeter for medical applications

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US17990600P 2000-02-02 2000-02-02
US60/179,906 2000-02-02
US17996100P 2000-02-03 2000-02-03
US60/179,961 2000-02-03
US21003400P 2000-06-07 2000-06-07
US60/210,034 2000-06-07
US09/630,398 2000-08-02
US09/630,398 US6468222B1 (en) 1999-08-02 2000-08-02 Metabolic calorimeter employing respiratory gas analysis
US22838800P 2000-08-28 2000-08-28
US60/228,388 2000-08-28
US23682900P 2000-09-29 2000-09-29
US60/236,829 2000-09-29
US09/773,797 US6629934B2 (en) 2000-02-02 2001-02-01 Indirect calorimeter for medical applications
US09/773,797 2001-02-01

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EP (1) EP1251773A4 (en)
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