RESPIRATION-SYNCHRONIZED HEART SOUND TRENDING
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United States of America Patent
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Issued Date -
May 22, 2008
app pub date -
Nov 20, 2006
filing date -
Nov 20, 2006
priority date (Note) -
Abandoned
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Abstract
Respiration-synchronized heart sound trends can be detected using an implantable medical device, including a respiration sensor, a respiration phase detector, a heart sound sensor, a heart sound detector, and a processor. The implantable medical device can also include a cardiac sensor. The respiration-synchronized heart sound trends can include heart sounds occurring during specific phases of a respiration signal, such as inspiration or expiration. The heart sound signal can be gated or the heart sound sensor can be enabled or disabled using the cardiac sensor or the respiration sensor. Further, the heart sound trends can be displayed using an external display, and can provide information about a cardiovascular status using an analysis module, or the analysis module and a blood volume sensor.
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