Invention Grant
- Patent Title: External charger for a medical implantable device using field inducing coils to improve coupling
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Application No.: US13653185Application Date: 2012-10-16
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Publication No.: US08548590B2Publication Date: 2013-10-01
- Inventor: Daniel Aghassian
- Applicant: Boston Scientific Neuromodulation Corporation
- Applicant Address: US CA Valencia
- Assignee: Boston Scientific Neuromodulation Corporation
- Current Assignee: Boston Scientific Neuromodulation Corporation
- Current Assignee Address: US CA Valencia
- Agency: Wong, Cabello, Lutsch, Rutherford & Brucculeri, LLP
- Main IPC: A61N1/00
- IPC: A61N1/00

Abstract:
By incorporating magnetic field-inducing position determination coils (PDCs) in an external charger, it is possible to determine the position of an implantable device by actively inducing magnetic fields using the PDCs and sensing the reflected magnetic field from the implant. In one embodiment, the PDCs are driven by an AC power source with a frequency equal to the charging coil. In another embodiment, the PDCs are driven by an AC power source at a frequency different from that of the charging coil. By comparing the relative reflected magnetic field strengths at each of the PDCs, the position of the implant relative to the external charger can be determined. Audio and/or visual feedback can then be communicated to the patient to allow the patient to improve the alignment of the charger.
Public/Granted literature
- US20130041429A1 External Charger for a Medical Implantable Device Using Field Inducing Coils to Improve Coupling Public/Granted day:2013-02-14
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