Magnet management MRI compatibility
First Claim
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1. An implantable medical device, comprising:
- a magnet; and
a body encompassing the magnet, whereinthe implantable medical device includes structural components in the body configured to move away from one another upon initial rotation of the magnet relative to the body when the magnet is subjected to an externally generated magnetic field that imparts a torque onto the magnet, thereby limiting rotation of the magnet beyond the initial rotation.
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Abstract
An implantable medical device, including a magnet and a body encompassing the magnet, wherein the implantable medical device includes structural components in the body configured to move away from one another upon initial rotation of the magnet relative to the body when the magnet is subjected to an externally generated magnetic field, thereby limiting rotation of the magnet beyond the initial rotation.
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Citations
22 Claims
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1. An implantable medical device, comprising:
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a magnet; and a body encompassing the magnet, wherein the implantable medical device includes structural components in the body configured to move away from one another upon initial rotation of the magnet relative to the body when the magnet is subjected to an externally generated magnetic field that imparts a torque onto the magnet, thereby limiting rotation of the magnet beyond the initial rotation. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An implantable medical device, comprising:
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a magnet apparatus; and a body encompassing the magnet apparatus, wherein the implantable medical device resists rotation of the magnet apparatus relative to the body in at least one plane when subjected to an externally generated magnetic field that imparts a torque onto the magnet apparatus due to a component relative to which the magnet apparatus is slidable, wherein the component is located within the body. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An implantable medical device, comprising:
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a magnet; and a body encompassing the magnet, wherein the body has a slit configured to enable passage of the magnet therethrough, and at least one of; the slit is pre-existing;
orthe magnet has a width and height, wherein the height is less than the width and the slit is located away from the magnet on a side of the magnet in a direction of the width. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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Specification