Antenna arrangements for implantable therapy device
First Claim
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1. An implantable medical device comprising:
- an inner housing containing a telemetry circuitry and a treatment circuitry, the inner housing defining an antenna port;
a loop antenna wrapped at least once around an external perimeter of the inner housing and coupled to the telemetry circuitry through the antenna port;
a first unbalanced antenna capacitively coupled to the loop antenna; and
an outer layer of a dielectric material surrounding at least a portion of the first unbalanced antenna, the outer layer defining therapy ports configured to provide an electrical connection to the treatment circuitry of the inner housing;
wherein the implantable medical device is configured for implantation within a body of a patient.
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Abstract
Embodiments of an implantable medical device includes a loop antenna wound about an inner housing. The loop antenna may form a partial winding, a complete winding, or multiple windings about the inner housing. One or more additional antennae may be capacitively coupled to the loop antenna external to the inner housing to increase efficiency and decrease Return Loss Response of the implantable device. The additional antenna may be balanced or unbalanced antennae.
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Citations
20 Claims
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1. An implantable medical device comprising:
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an inner housing containing a telemetry circuitry and a treatment circuitry, the inner housing defining an antenna port; a loop antenna wrapped at least once around an external perimeter of the inner housing and coupled to the telemetry circuitry through the antenna port; a first unbalanced antenna capacitively coupled to the loop antenna; and an outer layer of a dielectric material surrounding at least a portion of the first unbalanced antenna, the outer layer defining therapy ports configured to provide an electrical connection to the treatment circuitry of the inner housing; wherein the implantable medical device is configured for implantation within a body of a patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An implantable medical device comprising:
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an inner housing containing a telemetry circuitry and a treatment circuitry, the inner housing defining an antenna port; a loop antenna wrapped in a plurality of coils around an external perimeter of the inner housing and coupled to the telemetry circuitry through the antenna port; a first unbalanced antenna decoupled from the loop antenna; and an outer layer of a dielectric material surrounding at least a portion of the first unbalanced antenna, the outer layer defining therapy ports configured to provide an electrical connection to the treatment circuitry of the inner housing; wherein the implantable medical device is configured for implantation within a body of a patient. - View Dependent Claims (18, 19, 20)
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Specification