The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 13, 2009
Filed:
May. 12, 2004
James Adam Palazzolo, Sunnyvale, CA (US);
Ronald D. Berger, Baltimore, MD (US);
Henry R. Halperin, Baltimore, MD (US);
Darren R. Sherman, Sunnyvale, CA (US);
James Adam Palazzolo, Sunnyvale, CA (US);
Ronald D. Berger, Baltimore, MD (US);
Henry R. Halperin, Baltimore, MD (US);
Darren R. Sherman, Sunnyvale, CA (US);
Zoll Circulation, Inc., Sunnyvale, CA (US);
Abstract
A method of processing a raw acceleration signal, measured by an accelerometer-based compression monitor, to produce an accurate and precise estimated actual depth of chest compressions. The raw acceleration signal is filtered during integration and then a moving average of past starting points estimates the actual current starting point. An estimated actual peak of the compression is then determined in a similar fashion. The estimated actual starting point is subtracted from the estimated actual peak to calculate the estimated actual depth of chest compressions. In addition, one or more reference sensors (such as an ECG noise sensor) may be used to help establish the starting points of compressions. The reference sensors may be used, either alone or in combination with other signal processing techniques, to enhance the accuracy and precision of the estimated actual depth of compressions.