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System and method for detecting cardiac ischemia using an implantable medical device

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • A61B-005/0452
출원번호 US-0603429 (2003-06-24)
등록번호 US-7274959 (2007-09-25)
발명자 / 주소
  • Wang,Zifei
  • Fard,Mohssen
  • Snell,Jeffery D.
출원인 / 주소
  • Pacesetter, Inc.
인용정보 피인용 횟수 : 13  인용 특허 : 42

초록

A technique is provided for detecting episodes of cardiac ischemia based on an examination of post-T-wave signal segments. Since cardiac ischemia is often a precursor to acute myocardial infarction (AMI) or ventricular fibrillation (VF), the technique thereby provides a method for predicting the pos

대표청구항

What is claimed is: 1. In an implantable medical device for implant within a patient, a method comprising: receiving electrical cardiac signals having a series of cycles, each cycle including a ventricular repolarization followed by a ventricular depolarization; identifying segments of the cardiac

이 특허에 인용된 특허 (42)

  1. Siegel John H. (Baltimore MD) Nikias Chrysostomos L. (Needham MA), Advanced signal processing methodology for the detection, localization and quantification of acute myocardial ischemia.
  2. Siegel John H. (Baltimore MD) Nikias Chrysostomos L. (Needham MA), Advanced signal processing methodology for the detection, localization and quantification of acute myocardial ischemia.
  3. Collins Kenneth A. (Neutral Bay AUX), Antiarrhythmia pacer using antiarrhythmia pacing and autonomic nerve stimulation therapy.
  4. Cox Michael W. (Lincroft NJ) Levin Richard I. (New York NY) Cohen David J. (Sag Harbor NY) Frisbie William R. (East Hampton NY), Cardiac signal real time monitor and method of analysis.
  5. Lerner Albert M. (660 Woodland Birmingham MI 48009), Diagnosing and treating chronic fatigue syndrome by electrocardiographic monitoring of T-waves.
  6. Levine Paul A. ; Valikai Kenneth, Dual-chamber implantable pacemaker having negative AV/PV hysteresis and ectopic discrimination.
  7. Nappholz Tibor A. (Englewood CO) Hursta William N. (Littleton CO) Dawson Albert K. (Denver CO) Steinhaus Bruce M. (Parker CO), Implantable ambulatory electrocardiogram monitor.
  8. Alferness Clifton A. (Redmond WA), Implantable atrial defibrillator having ischemia coordinated intervention therapy and method.
  9. Yomtov Barry M. (Bellevue WA) Kreyenhagen Paul E. (Bellevue WA), Implantable cardiac patient monitor.
  10. Prutchi David ; Paul Patrick J., Implantable cardiac stimulator with safe noise mode.
  11. Obel Israel W. P. (Johannesburg ZAX) Bourgeois Ivan (Verviers BEX), Implantable electrical nerve stimulator/pacemaker with ischemia for decreasing cardiac workload.
  12. Fischell Robert E. ; Fischell David R. ; Fischell Tim A., Implantable electronic system with acute myocardial infarction detection and patient warning capabilities.
  13. Ekwall Christer,SEX, Implantable heart stimulator.
  14. Mathson Goran,SEX, Implantable heart stimulator with a maximum stimulation rate that is adjusted dependent on ischemia detection.
  15. Ekwall Christer,SEX ; Noren Kjell,SEX, Implantable ischemia detector and implantable stimulator employing same.
  16. Norris, John F.; Van Oort, Geeske; Munneke, Dave J., Implantable medical device and method using integrated T-wave alternans analyzer.
  17. Nelson Teresa R., Implantable medical device monitoring method and system regarding same.
  18. Ananth Natarajan ; Nitish V. Thakor, Implantable myocardial ischemia detection, indication and action technology.
  19. Adams John M. (Issaquah WA) Alferness Clifton A. (Redmond WA), Implantable myocardial ischemia monitor and related method.
  20. Fischell Robert E. ; Fischell David R. ; Fischell Tim A., Implantable responsive system for sensing and treating acute myocardial infarction.
  21. Robert Stadler ; Shannon Nelson, Ischemia detection during non-standard cardiac excitation patterns.
  22. Ekwall Christer,SEX ; Noren Kjell,SEX, Ischemia detector.
  23. Ekwall Christer,SEX ; Nyhlen Christina,SEX, Ischemia detector and heart stimulator provided with such an ischemia detector.
  24. Benser Michael Eric, Method and apparatus for detecting changes in electrocardiogram signals.
  25. Xue Qiuzhen ; Reddy Shankara, Method and apparatus for determining T-wave marker points during QT dispersion analysis.
  26. Stadler Robert ; Nelson Shannon ; Stylos Lee ; Sheldon Todd J., Method and apparatus for filtering electrocardiogram (ECG) signals to remove bad cycle information and for use of physiologic signals determined from said filtered ECG signals.
  27. Verrier Richard L. (Wellesley MA) Nearing Bruce D. (N. Kingstown RI), Method and apparatus for prediction of cardiac electrical instability by simultaneous assessment of T-wave alternans and.
  28. Lu, Richard, Method and device for responding to the detection of ischemia in cardiac tissue.
  29. Joseph M. Starobin ; Yuri B. Chernyak, Method and system for evaluating cardiac ischemia.
  30. Juan R. Guerrero ; Juan C. Guerrero, Method for analysis of biological voltage signals.
  31. Stadler Robert ; Nelson Shannon ; Stylos Lee ; Sheldon Todd J., Method for ischemia detection and apparatus for using same.
  32. Berger Ronald D. (3101 Northbrook Rd. Baltimore MD 21208), Methodology for automated QT variability measurement.
  33. Zanetti John M. (Long Lake MN) Salerno David M. (Minneapolis MN), Myocardial ischemia detection system.
  34. Verrier Richard L. (Bethesda MD) Nearing Bruce D. (Rockville MD), Non-invasive dynamic tracking of cardiac vulnerability by analysis of T-wave alternans.
  35. Dawson Albert K. (Littleton CO) Nappholz Tibor (Englewood CO), Pacemaker and method having optimized A-V delay by using the evoked depolarization potential as an indicia of cardiac ou.
  36. Mlynash, Michael D.; Groenewegen, Arne Sippens; Lesh, Michael D., QRST subtraction using an adaptive template for analysis of TU wave obscured atrial activity.
  37. Fischell Robert E. (Silver Spring MD), Recorder with patient alarm and service request systems suitable for use with automatic implantable defibrillator.
  38. DuFault Robert A. (Roseville MN), Refractoriless atrial sensing in dual chamber pacemakers.
  39. DeCote ; Jr. Robert (Miami Beach FL), System and method for detecting evoked cardiac contractions.
  40. McClure, Kelly H.; Bornzin, Gene A.; Mai, Junyu, System and method of automatically adjusting sensing parameters based on temporal measurement of cardiac events.
  41. Weinberg, Lisa P.; Bornzin, Gene A.; McClure, Kelly H., System and method of automatically adjusting sensitivity in an implantable cardiac stimulation device.
  42. Fischell, David R.; Fischell, Tim A.; Harwood, Jonathan; Fischell, Robert E., System for the detection of cardiac events.

이 특허를 인용한 특허 (13)

  1. Allavatam, Venugopal; Hahn, Stephen J.; Herrmann, Keith L.; Lanz, Mitchell D.; Siejko, Krzysztof Z.; Speakman, Benjamin, Automatic determination and selection of filtering in a cardiac rhythm management device.
  2. Ostroff, Alan H., Devices for tachyarrhythmia sensing and high-pass filter bypass.
  3. Arcot-Krishnamurthy, Shantha; Shuros, Allan C.; Ding, Jiang; Yu, Yinghong; Stucky, Michael J.; Hartemink, Chris, Method and apparatus for identification of ischemic/infarcted regions and therapy optimization.
  4. Arcot-Krishnamurthy, Shantha; Shuros, Allan C.; Ding, Jiang; Yu, Yinghong; Stucky, Michael J.; Hartemink, Christopher, Method and apparatus for identification of ischemic/infarcted regions and therapy optimization.
  5. Zhang, Yi; Beck, Kenneth C.; Lewicke, Aaron; Zhang, Yunlong, Methods and apparatuses for detection of myocardial ischemia upon exertion.
  6. Zhang, Yi; Beck, Kenneth C.; Lewicke, Aaron; Zhang, Yunlong, Methods and apparatuses for detection of myocardial ischemia upon exertion.
  7. Ostroff, Alan H., Methods and devices for tachyarrhythmia sensing and high-pass filter bypass.
  8. Ostrow, Eliot L., Methods and systems to correlate arrhythmic and ischemic events.
  9. Ostrow, Eliot L., Methods and systems to correlate arrhythmic and ischemic events.
  10. Sheldon, Todd J.; Combs, William J.; Stylos, Lee; Lu, Steven N.; Nehls, Robert J., System and method for delivery of cardiac pacing in a medical device in response to ischemia.
  11. Ke, Chunlei; Gill, Jong; Boileau, Peter, System and method for detecting cardiac ischemia in real-time using a pattern classifier implemented within an implanted medical device.
  12. Ostrow, Eliot L.; Snell, Jay; Min, Xiaoyi, System and method for generating and using cardiac ischemia diagnostics based on arrhythmia precursors and arrhythmia episodes.
  13. Snell, Jay; Zhu, Bing; Hoberman, Katie; Krishnaswamy, Harish, Systems and methods related to ST segment monitoring by an implantable medical device.
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