Implantable medical device
First Claim
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1. An implantable medical device assembly comprised of a medical device and magnetic material disposed over said medical device, wherein:
- (a) said magnetic material has a saturation magnetization of at least about 0.15 Tesla, (b) when said magnetic material is simultaneously subjected to an alternating current electromagnetic field with a frequency of 64 megaherrtz and a static magnetic field of 1.5 Tesla, it has a magnetization of less than 100 electromagnetic units per cubic centimeter, and (c) said magnetic material has a direct current permeability at a static magnetic field value of 1.5 Tesla of at least 1.1.
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Abstract
An implantable medical device assembly that contains magnetic material with a saturation magnetization of at least about 0.15 Tesla and which has a direct current permeability at a static magnetic field value of 1.5 Tesla of at least 1.1. When the magnetic material and is simultaneously subjected to an alternating current electromagnetic field with a frequency of 64 megahertz and a static magnetic field of 1.5 Tesla, it has a magnetization of less than 100 electromagnetic units per cubic centimeter.
192 Citations
59 Claims
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1. An implantable medical device assembly comprised of a medical device and magnetic material disposed over said medical device, wherein:
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(a) said magnetic material has a saturation magnetization of at least about 0.15 Tesla, (b) when said magnetic material is simultaneously subjected to an alternating current electromagnetic field with a frequency of 64 megaherrtz and a static magnetic field of 1.5 Tesla, it has a magnetization of less than 100 electromagnetic units per cubic centimeter, and (c) said magnetic material has a direct current permeability at a static magnetic field value of 1.5 Tesla of at least 1.1. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59)
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Specification