Electromagnetic trap for a lead
OwnerEduardo H. Villaseca, Garry L. Dublininventors
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Abstract
A method and an apparatus for trapping induced current resulting from an electromagnetic field. Embodiments of the present invention provide for an elongate body having a proximal and a distal end portion and a coil wound about the distal end, the coil to provide an electromagnetic trap for filtering radio frequency (RF) signal-induced currents.
Claims22
A medical electrical lead, comprising:
- an elongate body having a proximal and a distal end portion and a coil wound about said distal end, said coil to provide an electromagnetic trap for filtering radio frequency (RF) signal-induced currents.
A medical electrical lead, comprising:
- an elongate body having a proximal and a distal end portion and a coil wound about said distal end, said coil to provide an inductive impedance in parallel with a capacitive impedance for reducing induced currents resulting in the presence of an electromagnetic field.
A implantable medical device system, comprising:
- an implantable medical device;
- and
- a medical electrical lead operatively coupled to said implantable medical device, said medical electrical lead having a proximal and a distal end portion and a coil wound about said distal end, said coil to provide an inductive impedance in parallel with a capacitive impedance for reducing induced currents resulting in the presence of an electromagnetic field.
The implantable medical device system of claim 17, wherein said inductive impedance and said capacitive impedance to form a filter to pass a sensor signal and to block said induced current.
A method for trapping an radio frequency (RF) signal induced current on a medical electrical lead, comprising:
- providing a wound coil at a distal end of said medical electrical lead such that said coil
- provides an inductive impedance in parallel with a capacitive impedance to reduce said induced current.
Dependencies are inferred from the claim text.