Apparatus for determining concentrations of hemoglobins
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 16, 2003
Issued Date -
N/A
app pub date -
Feb 15, 2002
filing date -
Nov 30, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An apparatus for determining concentrations of hemoglobins includes a light source for emitting lights of at least three different wavelengths, a first wavelength in a near-infrared region, a second wavelength in a red region, and a third wavelength in a red orange region, light receiving device for receiving light emitted by the light source, transmitted through a living tissue or reflected by the living tissue, attenuation ratio processing device for processing attenuation ratios between the wavelengths in accordance with variations of received-light output signals in each of the wavelengths output from the light receiving device, the variations are caused by a pulsation of blood and concentration ratio processing device for processing concentration ratios of at least oxyhemoglobin and methemoglobin based on the output signals from the attenuation ratio processing device.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully