DE69934111D1 - Verfahren und gerät zur schätzung eines physiologischen parameters unter anwendung von transformationen - Google Patents

Verfahren und gerät zur schätzung eines physiologischen parameters unter anwendung von transformationen

Info

Publication number
DE69934111D1
DE69934111D1 DE69934111T DE69934111T DE69934111D1 DE 69934111 D1 DE69934111 D1 DE 69934111D1 DE 69934111 T DE69934111 T DE 69934111T DE 69934111 T DE69934111 T DE 69934111T DE 69934111 D1 DE69934111 D1 DE 69934111D1
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DE
Germany
Prior art keywords
ratio
signal
sum
signals
electromagnetic energy
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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.)
Expired - Fee Related
Application number
DE69934111T
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English (en)
Other versions
DE69934111T2 (de
Inventor
Thomas J Yorkey
Paul D Mannheimer
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.)
Mallinckrodt Inc
Nellcor Puritan Bennett LLC
Original Assignee
Mallinckrodt Inc
Nellcor Puritan Bennett LLC
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Publication of DE69934111D1 publication Critical patent/DE69934111D1/de
Application granted granted Critical
Publication of DE69934111T2 publication Critical patent/DE69934111T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
    • A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
DE69934111T 1998-05-26 1999-05-26 Verfahren und gerät zur schätzung eines physiologischen parameters unter anwendung von transformationen Expired - Fee Related DE69934111T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/085,475 US6094592A (en) 1998-05-26 1998-05-26 Methods and apparatus for estimating a physiological parameter using transforms
US85475 1998-05-26
PCT/GB1999/001451 WO1999060918A1 (en) 1998-05-26 1999-05-26 Methods and apparatus for estimating a physiological parameter using transforms

Publications (2)

Publication Number Publication Date
DE69934111D1 true DE69934111D1 (de) 2007-01-04
DE69934111T2 DE69934111T2 (de) 2007-06-28

Family

ID=22191856

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69934111T Expired - Fee Related DE69934111T2 (de) 1998-05-26 1999-05-26 Verfahren und gerät zur schätzung eines physiologischen parameters unter anwendung von transformationen

Country Status (9)

Country Link
US (1) US6094592A (de)
EP (1) EP1079728B1 (de)
JP (1) JP2002516130A (de)
AT (1) ATE345730T1 (de)
AU (1) AU744836B2 (de)
CA (1) CA2342776A1 (de)
DE (1) DE69934111T2 (de)
ES (1) ES2278443T3 (de)
WO (1) WO1999060918A1 (de)

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WO1999060918A1 (en) 1999-12-02
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EP1079728A1 (de) 2001-03-07
ATE345730T1 (de) 2006-12-15

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