06526301 is referenced by 210 patents.

An oximeter for non-invasively measuring the oxygen saturation in blood with increased speed and accuracy is disclosed. The oximeter includes a number of features which increase the functionality of the device including: a dynamic range control for monitoring a range of inputs from low level signals encountered in fetal and other applications to typical or high level signals; light emitting devices of different wavelengths for filtering noise and providing additional medial monitoring functions; and an improved method for calculating the oxygenation levels without the need to take peak and valley measurements. The device includes a sensor unit which can be attached to a patient and an oximeter which determines the oxygen saturation in the blood based on signals received from the sensor. The sensor can include light emitting devices in three or more wavelengths to provide additional functions. In the present invention, the detected signal is immediately converted to a digital value.

Title
Direct to digital oximeter and method for calculating oxygenation levels
Application Number
9/740595
Publication Number
6526301 (B2)
Application Date
December 19, 2000
Publication Date
February 25, 2003
Inventor
James L Reuss
Waukesha
WI, US
Michael T Larsen
Wauwatosa
WI, US
Agent
Reinhart Boerner Van Deuren s c
US
Assignee
Criticare Systems
WI, US
IPC
A61B 5/00
View Original Source