Radio frequency antenna for a wireless intravascular medical device
First Claim
1. A radio frequency antenna for a medical device that is implanted into an animal, said radio frequency antenna comprising:
- a coil formed by a wire wherein that wire comprises;
(a) a core formed of a shape-memory material and having an outer surface;
(b) a first layer of electrically conductive material applied to the outer surface of the core; and
(c) a second layer extending around the first layer and formed of an electrically insulating and biologically compatible material;
a lubricant between the first layer and the second layer.
1 Assignment
0 Petitions
Accused Products
Abstract
A radio frequency antenna is provided for use with a medical device for implantation into an animal. The antenna comprises a coil formed by a wire that includes a core formed of a shape-memory material with an electrically conductive first layer applied to an outer surface of the core. A second layer, of an electrically insulating and biologically compatible material, extends around the first layer. If necessary to reduce friction a lubricant is place between the first and second layers. If second layer is formed of porous material or a non-biological compatible material, a biological compatible outer layer surrounds the second layer thereby providing a barrier that is impermeable to body fluids of the animal.
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Citations
19 Claims
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1. A radio frequency antenna for a medical device that is implanted into an animal, said radio frequency antenna comprising:
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a coil formed by a wire wherein that wire comprises; (a) a core formed of a shape-memory material and having an outer surface; (b) a first layer of electrically conductive material applied to the outer surface of the core; and (c) a second layer extending around the first layer and formed of an electrically insulating and biologically compatible material;
a lubricant between the first layer and the second layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A radio frequency antenna for a medical device that is implanted into an animal, said radio frequency antenna comprising a coil formed by a wire that comprises:
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a core formed of a resilient material and having an outer surface; a first layer of electrically conductive material applied to the outer surface of the core; a lubricant layer extending around the first layer; a second layer extending around the lubricant layer and formed of an electrically insulating and biological compatible material; and an outer layer extending around the second layer and providing a barrier that is impermeable to body fluids of the animal. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification