Analyzing photon density waves in a medical monitor

Patent metadata

Field	Value
Publication number	US-9433362-B2
Application number	US-201313764977-A
Country	US
Kind code	B2
Filing date	Feb 12, 2013
Priority date	Sep 30, 2009
Publication date	Sep 6, 2016
Grant date	Sep 6, 2016

Abstract

A monitoring system that may include an emission feature capable of emitting light into tissue, a modulator portion capable of modulating the emitter at a modulation frequency to generate photon density waves, a detection portion capable of detecting photons of the photon density waves after propagation through the tissue and capable of providing a distribution of detected photons over a time period for the photon density waves, and an analysis portion capable of calculating a skewness of the distribution and making determinations relating to a value of a physiologic parameter of the tissue based at least in part on the skewness of the distribution.

First claim

What is claimed is:

1. One or more non-transitory computer-readable media having stored thereon program instructions to facilitate the determination of physiological parameters of tissue, wherein the program instructions, when executed by a computing system, direct the computing system to at least:
drive a light source to emit light at a modulation frequency to generate photon density waves;
receive a signal from a detector, wherein the signal is representative of photons of the…

Assignees

• Covidien Lp

Inventors

• Baker Jr Clark R
• Mckenna Edward M

Classifications

• A61B5/14552

  Human Necessities · mapped topic

• A61B5/7203

  Human Necessities · mapped topic

• A61B5/14551

  Human Necessities · mapped topic

• G01N21/3151

  Physics · mapped topic

• A61B5/0261 Primary

  Human Necessities · mapped topic