Distributed transformer
First Claim
Patent Images
1. A distributed transformer of a transcutaneous energy transmission device for powering a medical device, the distributed transformer component comprising:
- a power supply;
a first transformer including a primary winding and a secondary winding, the primary winding configured to be coupled with the power supply, the first transformer configured to transfer power from the primary winding to the secondary winding across a first boundary;
a second transformer including a primary winding and a secondary winding, the secondary winding configured to be coupled with the medical device, the medical device implantable within a subject, and the second transformer configured to transfer power from the primary winding to the secondary winding across a second boundary that includes at least the skin of the subject; and
a cord having a first end that connects to the secondary winding of the first transformer and a second end that connects to the primary winding of the second transformer,wherein the primary winding of the first transformer is a single coil, wherein the secondary winding of the first transformer is in an inductive track configured to wrap around the body of the subject, and wherein the inductive track is at least one of a rectangular inductive loop or a plurality of sequentially connected coils.
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Accused Products
Abstract
Disclosed is a distributed transformer or extension cord component for a transcutaneous energy transfer system used to transfer electric power to an implanted medical device. The extension cord component may enable power transfer to occur at various points on or near the body of the subject within whom the medical device is implanted. In this way, the subject may gain greater flexibility and high levels of convenience in connection with use of the transcutaneous energy transfer system.
269 Citations
25 Claims
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1. A distributed transformer of a transcutaneous energy transmission device for powering a medical device, the distributed transformer component comprising:
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a power supply; a first transformer including a primary winding and a secondary winding, the primary winding configured to be coupled with the power supply, the first transformer configured to transfer power from the primary winding to the secondary winding across a first boundary; a second transformer including a primary winding and a secondary winding, the secondary winding configured to be coupled with the medical device, the medical device implantable within a subject, and the second transformer configured to transfer power from the primary winding to the secondary winding across a second boundary that includes at least the skin of the subject; and a cord having a first end that connects to the secondary winding of the first transformer and a second end that connects to the primary winding of the second transformer, wherein the primary winding of the first transformer is a single coil, wherein the secondary winding of the first transformer is in an inductive track configured to wrap around the body of the subject, and wherein the inductive track is at least one of a rectangular inductive loop or a plurality of sequentially connected coils. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A distributed transformer of a transcutaneous energy transmission device for powering a medical device, the distributed transformer component comprising:
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a power supply; a first transformer including a primary winding and a secondary winding, the primary winding configured to be coupled with the power supply, the first transformer configured to transfer power from the primary winding to the secondary winding across a first boundary; a second transformer including a primary winding and a secondary winding, the secondary winding configured to be coupled with the medical device, the medical device implantable within a subject, and the second transformer configured to transfer power from the primary winding to the secondary winding across a second boundary that includes at least the skin of the subject; and a cord having a first end that connects to the secondary winding of the first transformer and a second end that connects to the primary winding of the second transformer, wherein the distributed transformer further comprises the first boundary, wherein the first boundary includes a portion of an object configured to be used by the subject, wherein the primary winding of the first transformer is embedded within the object, wherein the primary winding of the first transformer includes an array of coils configured to be arranged in a plane and embedded within the object; the secondary winding of the first transformer is in an inductive track configured to wrap around the body of the subject; the inductive track is at least one of a rectangular inductive loop or a plurality of sequentially connected coils; and at least a portion of the secondary winding of the first transformer couples to the array of coils through at least one coil in the array of coils. - View Dependent Claims (21, 22, 23, 24, 25)
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Specification