WO2010051485A4 - Interference mitigation for implantable device recharging - Google Patents

Interference mitigation for implantable device recharging Download PDF

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Publication number
WO2010051485A4
WO2010051485A4 PCT/US2009/062838 US2009062838W WO2010051485A4 WO 2010051485 A4 WO2010051485 A4 WO 2010051485A4 US 2009062838 W US2009062838 W US 2009062838W WO 2010051485 A4 WO2010051485 A4 WO 2010051485A4
Authority
WO
WIPO (PCT)
Prior art keywords
therapy module
modifying
charging
operating parameter
charging device
Prior art date
Application number
PCT/US2009/062838
Other languages
French (fr)
Other versions
WO2010051485A1 (en
Inventor
Inc. Medtronic
William T. Donofrio
Paul Gordon Krause
Gerald P. Arne
James D. Reinke
David Jerome Peichel
Timothy Davis
John E. Burnes
Original Assignee
Medtronic Inc
Donofrio William T
Paul Gordon Krause
Arne Gerald P
Reinke James D
David Jerome Peichel
Timothy Davis
Burnes John E
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Medtronic Inc, Donofrio William T, Paul Gordon Krause, Arne Gerald P, Reinke James D, David Jerome Peichel, Timothy Davis, Burnes John E filed Critical Medtronic Inc
Priority to EP09799205A priority Critical patent/EP2370168B1/en
Publication of WO2010051485A1 publication Critical patent/WO2010051485A1/en
Publication of WO2010051485A4 publication Critical patent/WO2010051485A4/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/362—Heart stimulators
    • A61N1/37—Monitoring; Protecting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/372—Arrangements in connection with the implantation of stimulators
    • A61N1/378—Electrical supply
    • A61N1/3787—Electrical supply from an external energy source
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/362—Heart stimulators
    • A61N1/37—Monitoring; Protecting
    • A61N1/3718—Monitoring of or protection against external electromagnetic fields or currents
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters

Abstract

A therapy or monitoring system may implement one or more techniques to mitigate interference between operation of a charging device that charges a first implantable medical device (IMD) implanted in a patient and a second IMD implanted in the patient. In some examples, the techniques may include modifying an operating parameter of the charging device in response to receiving an indication that a second IMD is implanted in the patient. The techniques also may include modifying an operating parameter of the second IMD in response to detecting the presence or operation of the charging device.

Claims

AMENDED CLAIMS received by the International Bureau on 11 May 2010 (11.05.2010)
CLAIMS:
1. A system comprising: means adapted to detect a charging device that is configured to deliver a charging signal to charge a rechargeable power source of a first therapy module implanted in a patient; and means adapted to modify an operating parameter of a second therapy module implanted in the patient based on the detection of the charging of the first therapy module.
2. The system of claim 1 , wherein the means for detecting and means for modifying comprises a processor, and the system further comprising: the first therapy module; the second therapy module; and the charging device.
3. The system of claim 2, wherein the processor transmits a signal to the charging device to cause the charging device to modify a parameter of a charging signal delivered to charge the first therapy module.
AMENDED SHEET (ARTICLE 19)
7. The system of claim 5, wherein the means for modifying an operating parameter modifies the sensing parameter of the second therapy module by at least controlling the second therapy module to increase a duration of a blanking period.
8. The system of claim 5, wherein the means for modifying an operating parameter modifies the sensing parameter of the second therapy module by at least one of increasing a first threshold value with which a processor of the second therapy module identifies the cardiac signal from a sensed electrical signal or decreasing a second threshold value with which the processor identifies cardiac parameters within the cardiac signal.
9. The system of claim 5, wherein the means for modifying an operating parameter modifies the sensing parameter of the second therapy module by modifying at least one of an arrhythmia detection interval or increasing a number of arrhythmia events with which the second therapy module detects a cardiac arrhythmia episode.
10. The system of claim 5, wherein the means for modifying an operating parameter modifies the sensing parameter of the second therapy module by at least controlling the second therapy module to implement at least one of a rate stability criterion, a wavelet criterionj or a P-R logic criterion to detect a cardiac arrhythmia.
11. A method comprising; detecting a charging device that is configured to deliver a charging signal to charge a rechargeable power source of a first therapy module implanted in a patient; and modifying an operating parameter of a second therapy module implanted in the patient based on the detection of the charging of the first therapy module.
AMENDED SHEET (ARTICLE 19)
PCT/US2009/062838 2008-10-31 2009-10-30 Interference mitigation for implantable device recharging WO2010051485A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09799205A EP2370168B1 (en) 2008-10-31 2009-10-30 Interference mitigation for implantable device recharging

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11014408P 2008-10-31 2008-10-31
US61/110,144 2008-10-31

Publications (2)

Publication Number Publication Date
WO2010051485A1 WO2010051485A1 (en) 2010-05-06
WO2010051485A4 true WO2010051485A4 (en) 2010-07-15

Family

ID=41683391

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/062838 WO2010051485A1 (en) 2008-10-31 2009-10-30 Interference mitigation for implantable device recharging

Country Status (3)

Country Link
US (1) US8265771B2 (en)
EP (1) EP2370168B1 (en)
WO (1) WO2010051485A1 (en)

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Also Published As

Publication number Publication date
EP2370168B1 (en) 2012-10-03
US20100114241A1 (en) 2010-05-06
WO2010051485A1 (en) 2010-05-06
EP2370168A1 (en) 2011-10-05
US8265771B2 (en) 2012-09-11

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