Implant encapsulation
First Claim
Patent Images
1. An implantable device for treating sleep apnea, the device comprising:
- a flexible substrate sized and shaped for supporting at least one pair of modulation electrodes and configured to lie between a myelohyoid muscle and a genioglossus muscle, the carrier further including a portion configured to lie between a geniohyoid muscle and the genioglossus muscle and configured to be implanted adjacent the genioglossus muscle;
an implantable circuit arranged on the substrate and coupled to electrodes configured to stimulate a hypoglossal nerve;
an encapsulation structure disposed over at least a portion of the substrate and at least a portion of the implantable circuit, the encapsulation structure including;
a first polymer layer having a first density; and
a second polymer layer disposed over the first polymer layer and having a density which is less than the first density.
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Accused Products
Abstract
An implant unit may include a substrate and an implantable circuit arranged on the substrate. An encapsulation structure may be disposed over at least a portion of the substrate and at least a portion of the implantable circuit, the encapsulation structure including a parylene layer and a silicon layer disposed over the parylene layer.
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Citations
18 Claims
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1. An implantable device for treating sleep apnea, the device comprising:
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a flexible substrate sized and shaped for supporting at least one pair of modulation electrodes and configured to lie between a myelohyoid muscle and a genioglossus muscle, the carrier further including a portion configured to lie between a geniohyoid muscle and the genioglossus muscle and configured to be implanted adjacent the genioglossus muscle; an implantable circuit arranged on the substrate and coupled to electrodes configured to stimulate a hypoglossal nerve; an encapsulation structure disposed over at least a portion of the substrate and at least a portion of the implantable circuit, the encapsulation structure including; a first polymer layer having a first density; and a second polymer layer disposed over the first polymer layer and having a density which is less than the first density. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification