WO2012003131A4 - Charging system for an implantable medical device employing magnetic and electric fields - Google Patents

Charging system for an implantable medical device employing magnetic and electric fields Download PDF

Info

Publication number
WO2012003131A4
WO2012003131A4 PCT/US2011/041606 US2011041606W WO2012003131A4 WO 2012003131 A4 WO2012003131 A4 WO 2012003131A4 US 2011041606 W US2011041606 W US 2011041606W WO 2012003131 A4 WO2012003131 A4 WO 2012003131A4
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
charging
battery
implantable medical
medical device
Prior art date
Application number
PCT/US2011/041606
Other languages
French (fr)
Other versions
WO2012003131A2 (en
WO2012003131A3 (en
Inventor
Joey Chen
Robert Ozawa
Joonho Hyun
Vasily Dronov
Original Assignee
Boston Scientific Neuromodulation Corporation
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 Boston Scientific Neuromodulation Corporation filed Critical Boston Scientific Neuromodulation Corporation
Priority to JP2013518494A priority Critical patent/JP2013530015A/en
Priority to EP11728753.2A priority patent/EP2588192B1/en
Priority to CA2802758A priority patent/CA2802758C/en
Priority to ES11728753.2T priority patent/ES2534880T3/en
Priority to AU2011271597A priority patent/AU2011271597B2/en
Publication of WO2012003131A2 publication Critical patent/WO2012003131A2/en
Publication of WO2012003131A3 publication Critical patent/WO2012003131A3/en
Publication of WO2012003131A4 publication Critical patent/WO2012003131A4/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00Electrotherapy; Circuits therefor
    • A61N1/18Applying electric currents by contact electrodes
    • A61N1/32Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/372Arrangements in connection with the implantation of stimulators
    • A61N1/37211Means for communicating with stimulators
    • A61N1/37217Means for communicating with stimulators characterised by the communication link, e.g. acoustic or tactile
    • A61N1/37223Circuits for electromagnetic coupling
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00Electrotherapy; Circuits therefor
    • A61N1/18Applying electric currents by contact electrodes
    • A61N1/32Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/372Arrangements in connection with the implantation of stimulators
    • A61N1/378Electrical supply
    • A61N1/3787Electrical supply from an external energy source
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/27Adaptation for use in or on movable bodies
    • H01Q1/273Adaptation for carrying or wearing by persons or animals
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/30Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Abstract

A base station for passively recharging a battery in an implant without patient involvement is disclosed. The base station can be hand held or may comprise equipment configured to be placed at a fixed location, such as under a bed, on or next to a wall, etc. The base station can generate electric and magnetic fields (E- field and B-field) that couple with an antenna and a receiving coil within the implant to generate a charging current for charging the implant's battery. No handling or manipulation on part of the patient is necessary; the implant battery is passively charged whenever the patient is within range of either the magnetic or electric charging fields generated by base station. Charging using the B-field occurs when the IPG is at a relatively short distance from the base station, while charging using the E-field occurs at longer distances. Back telemetry from the implant can inform the base station whether B-field or E-field charging is indicated, and is preferred if possible for its ability to transfer higher amounts of power to the implant.

Claims

AMENDED CLAIMS received by the International Bureau on 01 February 2012 (01 .02.2012)
1. An external device for charging a battery in an implantable medical device, comprising:
at least one first antenna selectively enabled to generate an electric field for charging the battery in the implantable medical device;
at least one second antenna selectively enabled to generate a magnetic field for charging the battery in the implantable medical device; and control circuitry for selectively enabling either the first antenna or the second antenna based on charging information telemetered from the implantable medical device.
2. The device of claim 1, wherein the at least one first antenna comprises a quarter-wavelength monopole antenna or a half- wavelength dipole antenna.
3. The device of claim 1, wherein the at least one first antenna comprises a wire, patch or slot antenna.
4. The device of claim 1, wherein the at least one second antenna comprises a coil.
5. The device of claim 1, wherein the electric field comprises a first frequency and the magnetic field comprises a second frequency lower than the first frequency.
6. The device of claim 1, wherein the external device is positionable on a floor or wall.
7. The device of claim 1 , wherein the electric field is not modulated with data.
8. The device of claim 1, further comprising first demodulation circuitry coupleable to the first antenna for receiving the charging information from the implantable medical device, and second demodulation circuitry coupleable to the second antenna for receiving the charging information from the implantable medical device.
9. The device of claim 1, further comprising demodulating circuitry for receiving charging information from either or both of the first and second antennas.
10. The device of claim 1, further comprising a third antenna for receiving the charging information transmitted from the implantable medical device during generation of either the electric or magnetic fields.
11. The device of claim 1 , wherein only one of the first and second antennas are enabled at one time.
12. An implantable medical device, comprising:
a battery;
a first antenna configured to receive an electric field for charging the battery;
a second antenna configured to receive a magnetic field for charging the battery; and
a microcontroller for determining whether either or both of the electric field and the magnetic field have been received at the first or second antennas respectively, and for issuing at least one control signal enabling charging of the battery either by the electric field or the magnetic field.
29
PCT/US2011/041606 2010-07-01 2011-06-23 Charging system for an implantable medical device employing magnetic and electric fields WO2012003131A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2013518494A JP2013530015A (en) 2010-07-01 2011-06-23 Charging system for implantable medical devices using magnetic and electric fields
EP11728753.2A EP2588192B1 (en) 2010-07-01 2011-06-23 Charging system for an implantable medical device employing magnetic and electric fields
CA2802758A CA2802758C (en) 2010-07-01 2011-06-23 Charging system for an implantable medical device employing magnetic and electric fields
ES11728753.2T ES2534880T3 (en) 2010-07-01 2011-06-23 Charging system for an implantable medical device that uses electric and magnetic fields
AU2011271597A AU2011271597B2 (en) 2010-07-01 2011-06-23 Charging system for an implantable medical device employing magnetic and electric fields

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US36053610P 2010-07-01 2010-07-01
US61/360,536 2010-07-01

Publications (3)

Publication Number Publication Date
WO2012003131A2 WO2012003131A2 (en) 2012-01-05
WO2012003131A3 WO2012003131A3 (en) 2012-02-23
WO2012003131A4 true WO2012003131A4 (en) 2012-04-12

Family

ID=44544055

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/US2011/041606 WO2012003131A2 (en) 2010-07-01 2011-06-23 Charging system for an implantable medical device employing magnetic and electric fields
PCT/US2011/041773 WO2012003140A2 (en) 2010-07-01 2011-06-24 Implantable medical device and charging system employing electric fields

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/US2011/041773 WO2012003140A2 (en) 2010-07-01 2011-06-24 Implantable medical device and charging system employing electric fields

Country Status (7)

Country Link
US (4) US9044616B2 (en)
EP (2) EP2588192B1 (en)
JP (3) JP2013530015A (en)
AU (2) AU2011271597B2 (en)
CA (3) CA2900171C (en)
ES (1) ES2534880T3 (en)
WO (2) WO2012003131A2 (en)

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Also Published As

Publication number Publication date
JP2016104361A (en) 2016-06-09
AU2011271597A1 (en) 2013-01-10
EP2588193B1 (en) 2016-08-17
US9044616B2 (en) 2015-06-02
CA2802758A1 (en) 2012-01-05
AU2011271517A1 (en) 2013-01-10
JP6161754B2 (en) 2017-07-12
US20160059021A1 (en) 2016-03-03
EP2588193A2 (en) 2013-05-08
CA2802936C (en) 2017-06-13
US20120004708A1 (en) 2012-01-05
CA2802758C (en) 2015-11-24
WO2012003140A2 (en) 2012-01-05
EP2588192A2 (en) 2013-05-08
US20150224328A1 (en) 2015-08-13
US9427591B2 (en) 2016-08-30
CA2802936A1 (en) 2012-01-05
US9211416B2 (en) 2015-12-15
WO2012003131A2 (en) 2012-01-05
AU2011271597B2 (en) 2014-07-10
CA2900171A1 (en) 2012-01-05
US9265957B2 (en) 2016-02-23
WO2012003140A3 (en) 2012-03-29
JP5686894B2 (en) 2015-03-18
AU2011271517B2 (en) 2014-10-30
AU2011271597A2 (en) 2013-01-24
JP2013530016A (en) 2013-07-25
WO2012003131A3 (en) 2012-02-23
EP2588192B1 (en) 2015-03-04
ES2534880T3 (en) 2015-04-29
US20120004709A1 (en) 2012-01-05
JP2013530015A (en) 2013-07-25
CA2900171C (en) 2018-07-17

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