Accelerometer-based monitoring of the frequency dynamics of the isovolumic contraction phase and pathologic cardiac vibrations

a technology of isovolumic contraction and accelerometer, which is applied in the field of accelerometer-based monitoring of the frequency dynamics of the isovolumic contraction phase and the pathologic cardiac vibration, can solve the problems of reducing the sensitivity of acceleration signal measurement and the interpretation of this measuremen
US20090306736A1Inactive Publication Date: 2009-12-10DOBAK III JOHN D
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
DOBAK III JOHN D
Publication Date
2009-12-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

Methods and systems are disclosed that characterize cardiac function using an acceleration sensor to acquire and analyze the frequency dynamics associated with the isovolumic contraction phase (“ICP”). This information can be used to characterize heart function; optimize therapy for cardiomyopathy, including CRT therapy (including pacing intervals and required pharmacologic therapy); and to optimize CCM therapy. In addition, this information can be used to identify target pacing regions for CRT lead placement. Further, analyzing the frequency dynamics can be used to characterize pathologic heart vibrational motion, such as mitral regurgitation and the third or fourth heart sound, and the response of this motion to therapy for cardiomyopathy.
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Description

STATEMENT OF RELATED APPLICATIONS

[0001] This application is a continuation of U.S. patent application Ser. No. 11 / 347,623, filed Feb. 3, 2006, entitled “Accelerometer-Based Monitoring Of The Frequency Dynamics Of The Isovolumic Contraction Phase And Pathologic Cardiac Vibrations,” which claims the benefit of U.S. Provisional Application No. 60 / 650,532, filed Feb. 7, 2005, U.S. Provisional Application No. 60 / 655,038, filed Feb. 22, 2005, U.S. Provisional Application No. 60 / 656,307, filed Feb. 25, 2005, U.S. Provisional Application No. 60 / 657,766, filed Mar. 1, 2005, U.S. Provisional Application No. 60 / 659,658, filed Mar. 8, 2005, U.S. Provisional Application No. 60 / 663,788, filed Mar. 21, 2005, U.S. Provisional Application No. 60 / 669,324, filed Apr. 7, 2005, U.S. Provisional Application No. 60 / 677,569, filed May 4, 2005 and U.S. Provisional Application No. 60 / 680,673, filed May 13, 2005. Each of the prior US Provisional Patent Applications is incorporated by reference in its entirety ...

Claims

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