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특허 상세정보

Implantable device with voltage delay test

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) A61N-001/00   
미국특허분류(USC) 607/005; 607/029
출원번호 US-0340692 (2008-12-20)
등록번호 US8024038 (2011-09-06)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Schwegman, Lundberg & Woessner, P.A.
인용정보 피인용 횟수 : 2  인용 특허 : 17

An implantable medical device (IMD), such as a defibrillator, performs a capacitor reform or other temporary high current mode, such as to maintain efficacy of a battery or a high voltage defibrillation energy storage capacitor in spite of non-use. Before performing the capacitor reform or other high current mode, a voltage delay test can be performed. A voltage delay can be declared when an initial battery voltage measurement is less than a later battery voltage measurement during a loaded condition such as the charging of the capacitor. If a voltage de...


What is claimed is: 1. An implantable apparatus comprising:a battery;a high voltage storage capacitor for storing at least one of defibrillation energy and cardioversion energy;a high voltage storage capacitor charging circuit, coupled to the battery and the high voltage capacitor;a battery voltage measurement circuit, coupled to the battery; anda processor, coupled to battery voltage measurement circuit, configured to:recurrently test for a battery voltage delay via initiating a temporary high current mode that draws high current from the battery to det...

이 특허에 인용된 특허 (17)

  1. Michael W. Dooley ; Gregory Scott Munson. Apparatus and method for estimating battery condition in implantable cardioverter/defibrillators. USP2002126490484.
  2. Norton,John D.; Schmidt,Craig L.. Apparatus and method for exercising a battery for an implantable medical device. USP2007077248920.
  3. Acosta,Carlos C.; Perz,Leroy L.; Juran,Carleen J.; Bright,Kevin L.; Hester,Richard E.. Automatic waveform output adjustment for an implantable medical device. USP2006047024246.
  4. Torgerson,Nathan A.; Riekels,James E.. Battery recharge management for an implantable medical device. USP2007017167756.
  5. Gan,Hong; Waite,Noelle; Syracuse,Kenneth; Takeuchi,Esther S.. Discharge methodologies for lithium/silver vanadium oxide cells to manage voltage delay and permanent RDC growth region. USP2008057375496.
  6. Palazzo,Marcus; Takeuchi,Esther S.; Leising,Randolph. Electrochemical treatment method to reduce voltage delay and cell resistance in lithium/silver vanadium oxide cells. USP2006047026791.
  7. Paul A. Levine ; Lisa P. Weinberg. Implantable cardiac stimulation device and method for self-regulating sampling of measured parameters. USP2002046366812.
  8. Levine Paul A. ; Weinberg Lisa P.. Implantable cardiac stimulation device with dynamic self-regulation of the frequency of automatic test functions and the recordation thereof. USP2000106129746.
  9. James,Kristofer J.; Kelley,Shawn. Indicator of remaining energy in storage cell of implantable medical device. USP2007077239146.
  10. Zadeh Ali Enayat. Meter for measuring battery charge delivered in an implantable device. USP1998065769873.
  11. Obel,Martin; Lindberg,Jan. Method and apparatus for determining depleted capacity of a battery. USP2006067058451.
  12. Kroll Mark W.. Method for determining an ICD replacement time. USP1998045741307.
  13. Kroll Mark W.. Method for determining an ICD replacment time. USP1999075925068.
  14. Fayram, Timothy A.; Kroll, Mark W.. Methods and devices for inhibiting battery voltage delays in an implantable cardiac device. USP2004116826427.
  15. Dooley Michael W. ; Maile Keith R. ; Linder William J.. Power management system for an implantable device. USP1999095959371.
  16. William A. Palm ; Lloyd A. Van Hofwegen ; Jean-Cheui Hsung. Power management system for an implantable device. USP2002076426628.
  17. Morgan Wayne A. (Granada Hills CA) Mann Brian M. (Beverly Hills CA). System and method for measuring and storing parametric data pertaining to operating characteristics of an implantable me. USP1996045507786.