WO2001087151A3 - Method and device for the noninvasive determination of hemoglobin and hematocrit - Google Patents
Method and device for the noninvasive determination of hemoglobin and hematocrit Download PDFInfo
- Publication number
- WO2001087151A3 WO2001087151A3 PCT/US2001/014542 US0114542W WO0187151A3 WO 2001087151 A3 WO2001087151 A3 WO 2001087151A3 US 0114542 W US0114542 W US 0114542W WO 0187151 A3 WO0187151 A3 WO 0187151A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- determination
- hematocrit
- hemoglobin
- temperature
- hemoglobin concentration
- Prior art date
Links
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
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/4795—Scattering, i.e. diffuse reflection spatially resolved investigating of object in scattering medium
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
-
- 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
- A61B5/14535—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 for measuring haematocrit
-
- 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
- A61B5/14546—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 for measuring analytes not otherwise provided for, e.g. ions, cytochromes
-
- 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
-
- 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
- A61B5/1491—Heated applicators
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0233—Special features of optical sensors or probes classified in A61B5/00
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0233—Special features of optical sensors or probes classified in A61B5/00
- A61B2562/0242—Special features of optical sensors or probes classified in A61B5/00 for varying or adjusting the optical path length in the tissue
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/04—Arrangements of multiple sensors of the same type
- A61B2562/043—Arrangements of multiple sensors of the same type in a linear array
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6824—Arm or wrist
Abstract
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01933059A EP1282380A2 (en) | 2000-05-08 | 2001-05-07 | Noninvasive optical determination of hemoglobin and hematocrit |
CA002404925A CA2404925A1 (en) | 2000-05-08 | 2001-05-07 | Method and device for the noninvasive determination of hemoglobin and hematocrit |
JP2001583624A JP2003533261A (en) | 2000-05-08 | 2001-05-07 | Method and apparatus for non-invasive quantification of hemoglobin and hematocrit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/566,415 | 2000-05-08 | ||
US09/566,415 US6662031B1 (en) | 1998-05-18 | 2000-05-08 | Method and device for the noninvasive determination of hemoglobin and hematocrit |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2001087151A2 WO2001087151A2 (en) | 2001-11-22 |
WO2001087151A3 true WO2001087151A3 (en) | 2002-05-30 |
Family
ID=24262789
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2001/014542 WO2001087151A2 (en) | 2000-05-08 | 2001-05-07 | Method and device for the noninvasive determination of hemoglobin and hematocrit |
Country Status (6)
Country | Link |
---|---|
US (1) | US6662031B1 (en) |
EP (1) | EP1282380A2 (en) |
JP (1) | JP2003533261A (en) |
AU (1) | AU2001238033A1 (en) |
CA (1) | CA2404925A1 (en) |
WO (1) | WO2001087151A2 (en) |
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US6865407B2 (en) * | 2002-07-11 | 2005-03-08 | Optical Sensors, Inc. | Calibration technique for non-invasive medical devices |
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- 2001-05-07 EP EP01933059A patent/EP1282380A2/en not_active Withdrawn
- 2001-05-07 JP JP2001583624A patent/JP2003533261A/en not_active Withdrawn
- 2001-05-07 WO PCT/US2001/014542 patent/WO2001087151A2/en active Application Filing
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US8954128B2 (en) | 2008-03-28 | 2015-02-10 | Dexcom, Inc. | Polymer membranes for continuous analyte sensors |
US9173606B2 (en) | 2008-03-28 | 2015-11-03 | Dexcom, Inc. | Polymer membranes for continuous analyte sensors |
US9173607B2 (en) | 2008-03-28 | 2015-11-03 | Dexcom, Inc. | Polymer membranes for continuous analyte sensors |
US9549699B2 (en) | 2008-03-28 | 2017-01-24 | Dexcom, Inc. | Polymer membranes for continuous analyte sensors |
US9566026B2 (en) | 2008-03-28 | 2017-02-14 | Dexcom, Inc. | Polymer membranes for continuous analyte sensors |
US9572523B2 (en) | 2008-03-28 | 2017-02-21 | Dexcom, Inc. | Polymer membranes for continuous analyte sensors |
Also Published As
Publication number | Publication date |
---|---|
EP1282380A2 (en) | 2003-02-12 |
WO2001087151A2 (en) | 2001-11-22 |
US6662031B1 (en) | 2003-12-09 |
JP2003533261A (en) | 2003-11-11 |
AU2001238033A1 (en) | 2001-11-20 |
CA2404925A1 (en) | 2001-11-22 |
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