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Cardiac cardioverter/defibrillator with in vivo impedance estimation 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • A61N-001/37
출원번호 US-0383465 (1995-02-03)
발명자 / 주소
  • Cox Timothy J. (Lake Jackson TX)
출원인 / 주소
  • Intermedics, Inc. (Angleton TX 02)
인용정보 피인용 횟수 : 55  인용 특허 : 0

초록

An implantable device, such as a defibrillator which may include cardioversion and pacemaker capabilities, which automatically measures the impedance of the heart prior to the delivery of a cardioverting shock. The defibrillator adjusts the voltage level on output capacitors to deliver a selected en

대표청구항

An implantable medical device comprising means for producing a therapeutic electrical stimulation, said means for producing a therapeutic electrical stimulation including at least one electrical switch having an inherent capacitance, means coupled to said stimulation producing means through said at

이 특허를 인용한 특허 (55)

  1. Hoium,Harold H.; Ryan,Stephen J., Apparatus and method for detecting lead adequacy and quality.
  2. Wham,Robert H.; Sturm,Thomas A., Automatic control system for an electrosurgical generator.
  3. Daum, Douglas R.; Sun, Weimin, Cardiac rhythm management system with defibrillation threshold prediction.
  4. Daum, Douglas R.; Sun, Weimin, Cardiac rhythm management system with defibrillation threshold prediction.
  5. Dujmovic, Jr., Richard Milon; Foshee, Phil; Fogoros, Richard; Smith, Joseph M.; Daum, Douglas R.; Sun, Weimin, Cardiac rhythm management system with defibrillation threshold prediction.
  6. Dujmovic, Jr., Richard Milon; Foshee, Phil; Fogoros, Richard; Smith, Joseph M.; Daum, Douglas R.; Sun, Weimin, Cardiac rhythm management system with defibrillation threshold prediction.
  7. Wedan, Steven R., Cardiac sensing by implantable medical devices during magnetic resonance imaging.
  8. Wuthrich, Scott A., Charge-based defibrillation method and apparatus.
  9. Behnke, Robert, Circuit and method for reducing stored energy in an electrosurgical generator.
  10. Behnke, Robert, Circuit and method for reducing stored energy in an electrosurgical generator.
  11. Keppel, David S., Circuit for controlling arc energy from an electrosurgical generator.
  12. Keppel,David S., Circuit for controlling arc energy from an electrosurgical generator.
  13. Sartor, Joe Don; Huseman, Mark Joseph, Connector systems for electrosurgical generator.
  14. Sartor,Joe Don; Huseman,Mark Joseph, Connector systems for electrosurgical generator.
  15. David Keppel ; Steven H. Johnson ; Jim Mageehon, Current and status monitor.
  16. Linder, William J.; Sree, Hari, Defibrillation shock output circuit.
  17. Wei, Xuan; Sweeney, Robert J.; Bocek, Joseph M.; Meyer, Scott A.; Stahmann, Jeffrey E.; Zhang, Yi, Defibrillation threshold prediction methods and systems.
  18. Elabbady Tarek Z. ; Chapman Fred W. ; Sullivan Joseph L. ; Nova Richard C. ; Borschowa Lawrence A., Defibrillator method and apparatus.
  19. Orszulak, James H., Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling.
  20. Gines,David Lee, Electrosurgical generator with adaptive power control.
  21. Wedan, Steve R., Induced current measurement systems and methods.
  22. Wedan, Steve R., Induced current measurement systems and methods.
  23. Chavan, Abhi V.; Maile, Keith R.; Bartczak, Andrew, Integrated high voltage output circuit.
  24. Miller, James L., Internal defibrillator operable with one hand.
  25. Linder, William J.; Maile, Keith R.; Vijayagopal, Ramprasad; Balczewski, Ron A., Low-power system and methods for neuromodulation.
  26. Wedan, Steve R.; Bobgan, Jean M.; Lloyd, Thomas W., MRI compatible implantable medical devices and methods.
  27. Wedan, Steve R.; Bobgan, Jean M.; Lloyd, Thomas W., MRI compatible implantable medical devices and methods.
  28. Wedan, Steve R.; Bobgan, Jean M.; Lloyd, Thomas W., MRI compatible implantable medical devices and methods.
  29. Sullivan, Joseph L.; DeBardi, Gary, Method and apparatus for delivering electrotherapy having an equivalent probability of success for different patients.
  30. Fossan, Helge, Method and apparatus for detecting a shock applied to a patient during CPR.
  31. Baura Gail D., Method and apparatus for electrode and transthoracic impedance estimation.
  32. Baura Gail D., Method and apparatus for high current electrode, transthoracic and transmyocardial impedance estimation.
  33. Nassif, Rabih C., Method and apparatus for variable capacitance defibrillation.
  34. Nassif,Rabih C., Method and apparatus for variable capacitance defibrillation.
  35. Paterson, William G.; Blaha, Derek M., Method and system for continuity testing of medical electrodes.
  36. Buysse,Steven P.; Felton,Bret S.; Heard,David N.; Keppel,David; Podhajsky,Ronald J.; Schmaltz,Dale F.; Wham,Robert H.; Meagher,Edward C.; Lawes,Kate R.; Schechter,David A.; Shields,Chelsea; Tetzlaff,, Method and system for controlling output of RF medical generator.
  37. Podhajsky, Ronald J., Method and system for optically detecting blood and controlling a generator during electrosurgery.
  38. Wham, Robert H.; Sturm, Thomas A.; Faulkner, William D., Method and system for programming and controlling an electrosurgical generator system.
  39. Wham, Robert H.; Sturm, Thomas A.; Faulkner, William D., Method and system for programming and controlling an electrosurgical generator system.
  40. Wei, Xuan, Pain free defibrillation threshold estimation.
  41. Wei, Xuan, Pain free defibrillation threshold estimation.
  42. Ternes, David J.; Vanderlinde, Scott; Vijayagopal, Ramprasad; Boon, Scot C., Power supply management for implantable neurostimulation devices.
  43. Gregg, William N.; Blaha, Derek M., Redundant temperature monitoring in electrosurgical systems for safety mitigation.
  44. Orszulak, James H.; McPherson, James W., Switched resonant ultrasonic power amplifier system.
  45. Orszulak,James H.; McPherson,James W., Switched resonant ultrasonic power amplifier system.
  46. Arts, Gene H.; Craig, Jason L.; Schmaltz, Dale F., System and method for controlling electrosurgical snares.
  47. Stessman, Nicholas J., System and method for measuring battery current.
  48. Stessman,Nicholas J., System and method for measuring battery current.
  49. Krig,David B.; Tobacman,Kenneth; Boon,Scot; James,Kristofer J.; Gandhi,Rajesh Krishan, System and method for monitoring or reporting battery status of implantable medical device.
  50. Blaha, Derek M., Thermocouple measurement circuit.
  51. Plaven, Thomas; Lohe, Robert, Universal foot switch contact port.
  52. Keppel,David S., Variable output crest factor electrosurgical generator.
  53. Wham,Robert H.; Buysse,Steven P.; Orszulak,James H., Vessel sealing system.
  54. Wham,Robert; Buysse,Steven P.; Orszulak,James H., Vessel sealing system.
  55. Bahney, Timothy J., Vessel sealing system using capacitive RF dielectric heating.
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