Resonance tuning module for implantable devices and leads
First Claim
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1. A resonance tuning module comprising:
- a first interface configured to provide an electrical connection with an implantable medical device having electronics therein;
a second interface configured to provide an electrical connection with an implantable lead;
a control and adjustment subsystem configured to determine a combined resonant frequency of the implantable medical device and the lead after implantation; and
an adjustable impedance circuit comprising at least one of an adjustable inductive element or an adjustable capacitive element, wherein, based on the combined resonant frequency of the implantable medical device and the lead determined after implantation, the control and adjustment subsystem adjusts at least one of the adjustable inductive element or the adjustable capacitive element to adjust an impedance of the adjustable impedance circuit to change the combined resonant frequency of the implantable medical device and the lead after implantation.
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Abstract
An implantable medical assist device includes a medical device. The medical device has a housing and electronics contained therein. A lead provides an electrical path to or from the electronics within the medical device. A resonance tuning module is located in the housing and is connected to the lead. The resonance tuning module includes a control circuit for determining a resonant frequency of the implantable medical assist device and an adjustable impedance circuit to change the combined resonant frequency of the medical device and lead.
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Citations
13 Claims
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1. A resonance tuning module comprising:
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a first interface configured to provide an electrical connection with an implantable medical device having electronics therein; a second interface configured to provide an electrical connection with an implantable lead; a control and adjustment subsystem configured to determine a combined resonant frequency of the implantable medical device and the lead after implantation; and an adjustable impedance circuit comprising at least one of an adjustable inductive element or an adjustable capacitive element, wherein, based on the combined resonant frequency of the implantable medical device and the lead determined after implantation, the control and adjustment subsystem adjusts at least one of the adjustable inductive element or the adjustable capacitive element to adjust an impedance of the adjustable impedance circuit to change the combined resonant frequency of the implantable medical device and the lead after implantation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification