Source: http://www.google.es/patents/US20050080347
Timestamp: 2018-01-24 04:12:18
Document Index: 75952730

Matched Legal Cases: ['art.\n8', 'art.\n9', 'art.\n10', 'art.\n17', 'art.\n18', 'art.\n20', 'art.\n23', 'art.\n24']

Patente US20050080347 - Method and apparatus for detecting and discriminating arrhythmias - Google Patentes
An apparatus and method for discriminating arrhythmias that includes sensing a heart rate indicative of an arrhythmia associated with a first portion of a heart, determining regularity of the sensed heart rate, determining an event interval variability associated with a second portion of the heart, and...http://www.google.es/patents/US20050080347?utm_source=gb-gplus-sharePatente US20050080347 - Method and apparatus for detecting and discriminating arrhythmias
Número de publicación US20050080347 A1
Número de solicitud US 10/682,982
También publicado como CA2541359A1, DE602004031649D1, EP1677673A1, EP1677673B1, US7076290, WO2005034745A1
Número de publicación 10682982, 682982, US 2005/0080347 A1, US 2005/080347 A1, US 20050080347 A1, US 20050080347A1, US 2005080347 A1, US 2005080347A1, US-A1-20050080347, US-A1-2005080347, US2005/0080347A1, US2005/080347A1, US20050080347 A1, US20050080347A1, US2005080347 A1, US2005080347A1
Inventores Nirav Sheth, Eduardo Warman, Michael Hess
Citas de patentes (20), Citada por (57), Clasificaciones (17), Eventos legales (3)
US 20050080347 A1
means for determining an event interval variability associated with a second portion of the heart; and
means for classifying the arrhythmia in response to the determined event interval variability.
means for determining whether a therapy is being delivered to the second portion of the heart; and
means for varying the therapy prior to determining the event interval variability in response to the therapy being delivered.
3. The device of claim 2, further comprising means for determining whether sensing is present in the second portion of the heart, and wherein the means for varying the therapy includes reducing the therapy until one of determining sensing is present and the therapy being delivered at a predetermined minimum rate.
4. The device of claim 3, wherein the means for determining whether sensing is present determines the frequency of the therapy during a predetermined time interval and disables the means for determining an event interval variability and the means for classifying the arrhythmia.
5. The device of claim 1, further comprising means for determining R-R intervals, wherein the means for determining the event interval variability determines a difference between maximum R-R intervals and minimum R-R intervals occurring during a predetermined number of consecutive R-R intervals.
6. The device of claim 5, wherein the means for determining the event interval variability determines whether the difference between maximum R-R intervals and minimum R-R intervals is less than a regularity threshold, wherein the means for classifying the arrhythmia determines the arrhythmia is a first arrhythmia in response to the difference between maximum R-R intervals and minimum R-R intervals being less than the regularity threshold.
7. The device of claim 6, wherein the means for determining the event interval variability determines whether events associated with the second portion of the heart are associated with events associated with the first portion of the heart, wherein the means for classifying the arrhythmia determines the arrhythmia is the first arrhythmia in response to events associated with the second portion of the heart being associated with events associated with the first portion of the heart.
8. The device of claim 7, wherein the arrhythmia is classified as a second arrhythmia different from the first arrhythmia in response to events associated with the second portion of the heart not being associated with events associated with the first portion of the heart.
9. The device of claim 8, wherein the arrhythmia is classified as the first arrhythmia in response to events associated with the second portion of the heart being associated with events associated with the first portion of the heart such that intervals of events associated with the second portion of the heart are approximately equal an integer multiple of intervals of events associated with the first portion of the heart.
10. A method of detecting and classifying an arrhythmia, comprising:
determining an event interval variability associated with a second portion of the heart; and
classifying the arrhythmia in response to the determined event interval variability.
determining whether a therapy is being delivered to the second portion of the heart; and
varying the therapy prior to determining the event interval variability in response to the therapy being delivered.
12. The method of claim 11, further comprising determining whether sensing is present in the second portion of the heart, and wherein varying the therapy includes reducing the therapy until one of determining sensing is present and the therapy being delivered at a predetermined minimum rate.
13. The method of claim 12, wherein determining whether sensing is present includes determining the frequency of the therapy during a predetermined time interval and disabling the method in response to the determined frequency having a predetermined value.
14. The method of claim 10, further comprising sensing R-R intervals, wherein determining the event interval variability includes determining a difference between maximum R-R intervals and minimum R-R intervals occurring during a predetermined number of consecutively sensed R-R intervals.
15. The method of claim 14, further comprising determining whether the difference between maximum R-R intervals and minimum R-R intervals is less than a regularity threshold, wherein the arrhythmia is classified as a first arrhythmia in response to the difference between maximum R-R intervals and minimum R-R intervals being less than the regularity threshold.
16. The method of claim 15, further comprising determining whether events associated with the second portion of the heart are associated with events associated with the first portion of the heart, wherein the arrhythmia is classified as the first arrhythmia in response to events associated with the second portion of the heart being associated with events associated with the first portion of the heart.
17. The method of claim 16, wherein the arrhythmia is classified as a second arrhythmia different from the first arrhythmia in response to events associated with the second portion of the heart not being associated with events associated with the first portion of the heart.
18. The method of claim 17, wherein the arrhythmia is classified as the first arrhythmia in response to events associated with the second portion of the heart being associated with events associated with the first portion of the heart such that intervals of events associated with the second portion of the heart are approximately equal an integer multiple of intervals of events associated with the first portion of the heart.
20. The device of claim 19, further comprising means for determining R-R intervals, wherein the means for determining the event interval variability determines a difference between maximum R-R intervals and minimum R-R intervals occurring during a predetermined number of consecutive R-R intervals.
21. The device of claim 20, wherein the means for determining the event interval variability determines whether the difference between maximum R-R intervals and minimum R-R intervals is less than a regularity threshold, wherein the means for classifying the arrhythmia determines the arrhythmia is a first arrhythmia in response to the difference between maximum R-R intervals and minimum R-R intervals being less than the regularity threshold.
22. The device of claim 21, wherein the means for determining the event interval variability determines whether events associated with the second portion of the heart are associated with events associated with the first portion of the heart, wherein the means for classifying the arrhythmia determines the arrhythmia is the first arrhythmia in response to events associated with the second portion of the heart being associated with events associated with the first portion of the heart.
23. The device of claim 22, wherein the arrhythmia is classified as a second arrhythmia different from the first arrhythmia in response to events associated with the second portion of the heart not being associated with events associated with the first portion of the heart.
24. The device of claim 23, wherein the arrhythmia is classified as the first arrhythmia in response to events associated with the second portion of the heart being associated with events associated with the first portion of the heart such that intervals of events associated with the second portion of the heart are approximately equal an integer multiple of intervals of events associated with the first portion of the heart.
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Clasificación de EE.UU. 600/515, 607/5
Clasificación internacional A61B5/0464, A61B5/046, G06F17/00, A61N1/368, A61N1/39, A61N1/362
Clasificación cooperativa A61N1/3622, A61B5/7264, A61B5/046, A61N1/3962, A61B5/0464
Clasificación europea A61B5/046, A61B5/72K12, A61N1/39M2, A61N1/362A2