Orientation and placement of inductive components to minimize noise coupling to a communication coil in an implantable medical device
First Claim
1. An implantable medical device, comprising:
- a coil comprising minimum and maximum orthogonal dimensions in a first plane and wound around a first axis; and
a boost converter configured to produce a second voltage from a first voltage, wherein the boost converter comprises an inductor wound around a second axis in a second plane comprising or parallel to the first plane, and wherein the second axis is parallel to the maximum dimension.
1 Assignment
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Accused Products
Abstract
Preferred orientations and placements of an inductor relative to a communication coil in an Implantable Medical Device (IMD) are disclosed. The inductor can comprise part of a boost converter used to generate a power supply voltage in the IMD, which inductor may interfere with the coil. The inductor may have a length defined by its windings around an axis, which axis may be in a plane of the coil or in a plane parallel to the coil. The inductor can be included within the area extent of the coil, and is preferably oriented such that its axis is parallel to a maximum dimension of the coil. Ends of the inductor are further preferably equidistant from the coil. So oriented and placed, the inductor is less prone to interfering with the coil, thus improving communications with the IMD.
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Citations
24 Claims
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1. An implantable medical device, comprising:
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a coil comprising minimum and maximum orthogonal dimensions in a first plane and wound around a first axis; and a boost converter configured to produce a second voltage from a first voltage, wherein the boost converter comprises an inductor wound around a second axis in a second plane comprising or parallel to the first plane, and wherein the second axis is parallel to the maximum dimension. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An implantable medical device, comprising:
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a communication coil configured to transmit and/or receive data to and/or from an external device by magnetic induction, the communication coil comprising minimum and maximum orthogonal dimensions in a first plane and wound around a first axis; and an inductor wound around a second axis in a second plane comprising or parallel to the first plane, wherein the inductor is within an area extent of the communication coil, and wherein the second axis is parallel to the maximum dimension. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification