Daniel J Peters

US Patent:

8071935, Dec 6, 2011

Filed:

Jun 30, 2008

Appl. No.:

12/165052

Inventors:

David P. Besko - Thornton CO, US
Daniel J. Peters - Longmont CO, US

Assignee:

Nellcor Puritan Bennett LLC - Boulder CO

International Classification:

H01J 27/14
H05K 9/00

US Classification:

250239, 361818, 361820

Abstract:

Embodiments described herein may include devices and methods of manufacturing devices for sensing and monitoring physiological parameters of a patient. Specifically, certain embodiments disclose the use of conductive and nonconductive overmold materials to protect the device, increase reliability, increase comfort, and increase accuracy of the parameters measured.

US Patent:

20110071378, Mar 24, 2011

Filed:

Sep 13, 2010

Appl. No.:

12/880306

Inventors:

Edward M. McKenna - Boulder CO, US
Daniel Jon Peters - Longmont CO, US

Assignee:

Nellcor Puritan Bennett LLC - Boulder CO

International Classification:

A61B 5/145

US Classification:

600364, 600300

Abstract:

Methods and systems are provided for using time-frequency warping to analyze a physiological signal. One embodiment includes applying a warping operator to the physiological signal based on the energy density of the signal. The warped physiological signal may be analyzed to determine whether non-physiological signal components are present. Further, the same warping operator may be applied to signal quality indicators, and the warped physiological signal may be analyzed based on the warped signal quality indicators. Non-physiological signal components, or types of non-physiological noise sources, may be identified based on a comparison of the physiological signal with the signal quality indicators. Non-physiological signal components may also be identified based on a neural network of known noise functions. In some embodiments, the non-physiological signal components may be removed to increase accuracy in estimating physiological parameters.

US Patent:

20110245628, Oct 6, 2011

Filed:

Mar 31, 2010

Appl. No.:

12/751274

Inventors:

Edward M. McKenna - Boulder CO, US
Daniel Peters - Longmont CO, US
Youzhi Li - Longmont CO, US

Assignee:

Nellcor Puritan Bennett LLC - Boulder CO

International Classification:

A61B 5/024
A61B 5/026
A61B 5/02
A61B 5/08
A61B 5/00

US Classification:

600301, 600504, 600500, 600508, 600529, 600300

Abstract:

Present embodiments relate to systems, methods, and devices for decomposing a physiological signal of a patient using empirical mode decomposition (EMD). In one embodiment, the EMD algorithm may involve identifying a frequency component, referred to as an intrinsic mode function, in the physiological signal. The physiological signal may be decomposed into one or more intrinsic mode functions through multiple iterations of the EMD algorithm. Each subsequent mode function may have a different frequency component of the original physiological signal input into the EMD algorithm. In some embodiments, each mode function may be further analyzed and/or processed to determine various physiological data corresponding to blood flow in the patient.