MRI compatible implanted electronic medical device with power and data communication capability
First Claim
1. An implantable antenna module for a medical device wherein the implantable antenna module is compatible with a magnetic resonance imaging scanner for a purpose of diagnostic quality imaging, said implantable antenna module comprising:
- an enclosure that is electrically non-conductive, electromagnetically transparent, and biocompatible, wherein the enclosure surrounds a region and has an inside surface and an outside surface;
an electromagnetic shield within the region and remote from the enclosure;
an inductive antenna having a coil pattern formed on the inside surface by a plurality of conductive loops wound parallel to the inside surface; and
an electronic module enclosed in the electromagnetic shield to minimize the electromagnetic interference from the magnetic resonance imaging scanner.
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Accused Products
Abstract
An antenna module, that is compatible with a magnetic resonance imaging scanner for the purpose of diagnostic quality imaging, is adapted to be implanted inside an animal. The antenna module comprises an electrically non-conducting, biocompatible, and electromagnetically transparent enclosure with inductive antenna wires looping around an inside surface. An electronic module is enclosed in an electromagnetic shield inside the enclosure to minimize the electromagnetic interference from the magnetic resonance imaging scanner.
135 Citations
29 Claims
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1. An implantable antenna module for a medical device wherein the implantable antenna module is compatible with a magnetic resonance imaging scanner for a purpose of diagnostic quality imaging, said implantable antenna module comprising:
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an enclosure that is electrically non-conductive, electromagnetically transparent, and biocompatible, wherein the enclosure surrounds a region and has an inside surface and an outside surface; an electromagnetic shield within the region and remote from the enclosure; an inductive antenna having a coil pattern formed on the inside surface by a plurality of conductive loops wound parallel to the inside surface; and an electronic module enclosed in the electromagnetic shield to minimize the electromagnetic interference from the magnetic resonance imaging scanner. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An implantable power antenna module for a medical device wherein the implantable antenna module is compatible with a magnetic resonance imaging scanner for a purpose of diagnostic quality imaging, said implantable power antenna module comprising:
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an enclosure that is electrically non-conductive, electromagnetically transparent, and biocompatible, wherein the enclosure surrounds a region and has an inside surface and an outside surface; an electromagnetic shield inside the region and remote from the enclosure; a capacitor inside the region; a magnetic field power antenna formed on the inside surface of the enclosure by a coil pattern having conductive loops parallel to the inside surface, and forming a resonant circuit with the capacitor; a coil pattern having conductive loops parallel to the inside surface an electronic module enclosed in the electromagnetic shield to minimize the electromagnetic interference from the magnetic resonance imaging scanner; and a power supply to furnish electrical energy to the electronic module. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
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23. An implantable communication antenna module that is compatible with a magnetic resonance imaging scanner for a purpose of diagnostic quality imaging, said implantable communication antenna module comprising:
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an enclosure that is electrically non-conductive, electromagnetically transparent, and biocompatible, wherein the enclosure surrounds a region and has an inside surface and an outside surface; an electromagnetic shield within the region and remote from the enclosure; a capacitor within the region; a magnetic field communication antenna formed on the inside surface of the enclosure by a coil pattern having conductive loops parallel to the inside surface, and forming a resonant circuit with the capacitor; and an electronic module enclosed in the electromagnetic shield to minimize the electromagnetic interference from the magnetic resonance imaging scanner, wherein a part of the electronic module is a transponder circuit. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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Specification