US Patent Application No: 2002/0001,390

Number of patents in Portfolio can not be more than 2000

Heart-sound detecting apparatus, system for measuring pre-ejection period by using heart-sound detecting apparatus, and system for obtaining pulse-wave-propagation-velocity-relating information by using heart-sound detecting apparatus

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ALSO PUBLISHED AS: 6477405
ATTORNEY / AGENT: (SPONSORED)
 

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Abstract

A heart-sound detecting apparatus, including a heart-sound microphone which detects at least one heart sound produced by the heart of a living subject and outputs a heart-sound signal representing the detected heart sound, a time-frequency analyzing device for analyzing, with respect to time and frequency, at least a portion of the heart-sound signal that includes a first heart sound I, and an aortic-valve-opening-timing determining device for determining a timing when the aortic valve of the heart opens, based on a time when a magnitude of the analyzed signal at a frequency higher than a frequency range of a main component present in an initial portion of the first heart-sound I is greater than a prescribed threshold value.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
OMRON HEALTHCARE CO., LTD.KYOTO490

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kawaguchi, Keizoh - 9 30

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
CARDIAC PACEMAKERS, INC. (27)
7,972,275 Method and apparatus for monitoring of diastolic hemodynamics 1 2002
7,248,923 Dual-use sensor for rate responsive pacing and heart sound monitoring 40 2003
7,431,699 Method and apparatus for third heart sound detection 24 2003
7,559,901 Determining a patient's posture from mechanical vibrations of the heart 32 2004
7,883,470 Apparatus and method for outputting heart sounds 1 2005
7,662,104 Method for correction of posture dependence on heart sounds 9 2005
7,404,802 Trending of systolic murmur intensity for monitoring cardiac disease with implantable device 6 2005
7,424,321 Systems and methods for multi-axis cardiac vibration measurements 14 2005
7,670,298 Sensing rate of change of pressure in the left ventricle with an implanted device 2 2005
7,922,669 Ischemia detection using a heart sound sensor 8 2005
8,108,034 Systems and methods for valvular regurgitation detection 3 2005
7,780,606 Hemodynamic stability assessment based on heart sounds 7 2006
8,000,780 Detection of myocardial ischemia from the time sequence of implanted sensor measurements 2 2006
8,096,954 Adaptive sampling of heart sounds 1 2006
7,736,319 Ischemia detection using heart sound timing 9 2007
7,853,327 Heart sound tracking system and method 6 2007
7,963,926 Trending of systolic murmur intensity for monitoring cardiac disease with implantable device 0 2008
8,317,717 Method and apparatus for third heart sound detection 0 2008
7,962,210 Implantable medical device with voice responding and recording capacity 0 2009
8,034,000 Ischemia detection using a heart sound sensor 2 2009
8,162,844 Managing preload reserve by tracking the ventricular operating point with heart sounds 0 2009
7,951,087 Method for correction of posture dependence on heart sounds 0 2009
8,007,442 Sensing rate of change of pressure in the left ventricle with an implanted device 1 2010
7,938,781 Hemodynamic stability assessment based on heart sounds 2 2010
8,332,034 Heart sound tracking system and method 0 2010
8,167,811 Apparatus and method for outputting heart sounds 0 2011
8,277,389 Sensing rate of change of pressure in the left ventricle with an implanted device 0 2011
 
NEW PARADIGM CONCEPTS, LLC. (1)
7,559,894 Multiparameter whole blood monitor and method 1 2005
 
PACESETTER, INC. (1)
8,321,017 Electromechanical delay (EMD) monitoring devices, systems and methods 2009