07130671 is referenced by 115 patents and cites 95 patents.

In a system for measuring a physiological parameter using at least one wavelength of electromagnetic energy transmitted through living tissue, a method for determining an operational status of the system. The method includes receiving a data signal from at least one sensor, determining whether the received data signal is representative of the physiological parameter by sensing whether the at least one sensor is secured to the living tissue, and generating a status signal representative of the operational status of the system based on that determination. The determination includes measuring an output level corresponding to the at least one wavelength. The determination may also include analyzing a spectrum corresponding to the at least one wavelength to determine a percentage of energy contained in a subset of the spectrum, or monitoring an amplitude of the data signal for a given interval.

Title
Pulse oximeter sensor off detector
Application Number
10/775497
Publication Number
7130671 (B2)
Application Date
February 9, 2004
Publication Date
October 31, 2006
Inventor
Thomas J Yorkey
San Ramon
CA, US
Clark R Baker Jr
Castro Valley
CA, US
Agent
Fletcher Yoder P C
Assignee
Nellcor Puritan Bennett Incorporated
CA, US
IPC
A61B 5/00
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