Title:
CHARGING SYSTEM FOR AN IMPLANTABLE MEDICAL DEVICE EMPLOYING MAGNETIC AND ELECTRIC FIELDS
Document Type and Number:
WIPO Patent Application WO/2012/003131
Kind Code:
A4
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.
Inventors:
CHEN JOEY (US)
OZAWA ROBERT (US)
HYUN JOONHO (US)
DRONOV VASILY (US)
OZAWA ROBERT (US)
HYUN JOONHO (US)
DRONOV VASILY (US)
Application Number:
PCT/US2011/041606
Publication Date:
April 12, 2012
Filing Date:
June 23, 2011
Export Citation:
Assignee:
BOSTON SCIENT NEUROMODULATION (US)
CHEN JOEY (US)
OZAWA ROBERT (US)
HYUN JOONHO (US)
DRONOV VASILY (US)
CHEN JOEY (US)
OZAWA ROBERT (US)
HYUN JOONHO (US)
DRONOV VASILY (US)
International Classes:
A61N1/378; A61N1/372
Attorney, Agent or Firm:
LEWIS, Terril, G. (Cabello Lutsch, Rutherfor& Brucculeri L.L.P,20333 Tomball Parkway, Suite 60, Houston TX, US)
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