Timothy J. Duffy - Anaheim CA Ralph M. Kerns - Laguna Niguel CA James F. Kelley - Coon Rapids MN Eric J. Fogt - Maple Grove MN
Assignee:
Medtronic, Inc. - Minneapolis MN
International Classification:
A61B 500
US Classification:
128633
Abstract:
A system for disabling an oximetric device when radiation-carrying channels are exposed to excess ambient radiation is disclosed. It includes a transmitter channel adjacent the sample to be measured, means for isolating the channel from the sample so that it does not carry radiation reflected from or transmitted through the sample, a detector for receiving the transmitted signal, if any, and means for disabling the output in response to the transmitted signal. Preferably, the transmitter channel runs parallel to other transmitter channels in the device, and is isolated from undue ambient light. The system preferably includes means for determining when the second transmitted signal exceeds background noise and the output is disabled when the second transmitted signal exceeds background noise. In general, the sample is a fluid, usually blood, passing through a cuvette adjacent the fiber-optic channels, the cuvette defining an area of radiation absorption adjacent the transmitter channel so that the transmitter does not carry reflected or transmitted radiation from the sample. Also disclosed is a fiber-optic sensor for measuring components of a composition by detecting transmitted or reflected, usually reflected, radiation including such a system, and the cuvette therefore.
Name / Title
Company / Classification
Phones & Addresses
Timothy Duffy President
3CM Group, Inc
8600 Venice Blvd, Los Angeles, CA 90034
Timothy Duffy Owner
Simply Home Entertainment Ret and Install Residential Control Systems · Home Theater Design
499 N Canon Dr, Beverly Hills, CA 90210 (310)8873684, (310)2481040
Timothy Duffy President
MOBILE MOHS INCORPORATED Commercial Physical Research
Jody Struck, Dale Donat, James Klank, Mark Jacob, John Maloy, Cathy Lange, Kathy Wallace, Karen Campinose, Bill Whitman, Dianne Georgoulakis, Stephen Walker