Coplanar wireless energy transfer
First Claim
1. A system for wirelessly powering a ventricular assist device (VAD), comprising:
- a receiver inductive coil associated with the VAD and configured to be implanted within the pericardium of a patient to wirelessly receive inductively-transferred electromagnetic power from external to the patient and provide that received power to the VAD; and
a transmitter inductive coil configured to be disposed externally around a body of the patient such that the transmitter inductive coil externally surrounds the patient'"'"'s body and the implanted receiver inductive coil, the transmitter inductive coil also configured to inductively transfer the electromagnetic power into the body and to the receiver inductive coil, the transmitter inductive coil comprising a height and a radius, a ratio of the height to the radius being about 0.4 to about 1.5.
1 Assignment
0 Petitions
Accused Products
Abstract
An external transmitter inductive coil can be provided in, on, or with a belt designed to be placed externally around a part of a body of a patient. An implantable device (such as a VAD or other medical device) that is implanted within the patient'"'"'s body has associated with a receiver inductive coil that gets implanted within that part of the patient'"'"'s body along with the device. The externally-located transmitter inductive coil inductively transfers electromagnetic power into that part of the body and thus to the receiver inductive coil. The implanted receiver inductive coil thus wirelessly receives the inductively-transferred electromagnetic power, and operates the implant.
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Citations
26 Claims
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1. A system for wirelessly powering a ventricular assist device (VAD), comprising:
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a receiver inductive coil associated with the VAD and configured to be implanted within the pericardium of a patient to wirelessly receive inductively-transferred electromagnetic power from external to the patient and provide that received power to the VAD; and a transmitter inductive coil configured to be disposed externally around a body of the patient such that the transmitter inductive coil externally surrounds the patient'"'"'s body and the implanted receiver inductive coil, the transmitter inductive coil also configured to inductively transfer the electromagnetic power into the body and to the receiver inductive coil, the transmitter inductive coil comprising a height and a radius, a ratio of the height to the radius being about 0.4 to about 1.5. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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- 17. A receiver inductive coil associated with a medical device and configured to be placed in the pulmonary cage of a patient to wirelessly receive inductively-transferred electromagnetic power from external to the patient and provide that received power to the medical device, the receiver inductive coil comprising 5 to 50 turns of a wire with a pitch of at least 0.05 inches between each turn, the inductively-transferred electromagnetic power being transmitted by a transmitter inductive coil configured to be disposed externally around and surround the patient'"'"'s pulmonary cage.
Specification