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US 10,118,043 B2Granted
Coil for signal transmission to implantable device
AssigneeCochlear Limited
InventorsOliver John Ridler, Adam Mujaj
Life of this patent
Estimating the term…
Abstract
A cochlear implant or other auditory prosthesis utilizes an external portion worn on a recipient's head and an internal portion implanted therein. Both portions include an associated coil that transmits a signal between the two portions. The external coil has a form factor substantially similar to the implantable coil. This form factor allows the external portion to be manufactured with a smaller footprint, since components that may otherwise interfere with signal transmission (e.g., batteries) may be installed closer to the external coil.
Claims21
A system comprising:
- an implantable component comprising an implantable coil having a base form factor;
- and
- an external component comprising:
- a housing;
- an external coil defining an external coil perimeter and having a modified base form factor, wherein the modified base form factor is substantially similar to the base form factor, wherein the external coil is configured to transmit signals to the implantable coil, when the implantable coil is implanted in a recipient, and wherein the modified base form factor comprises a lateral perimeter portion defined in part by a substantially straight line;
- and
- a battery disposed laterally and entirely outside of the external coil perimeter and proximate a portion of the lateral perimeter portion defined by the substantially straight line,
- wherein the battery and the external coil are disposed within the housing.
5 more elements
An apparatus comprising:
- a wearable housing having a housing perimeter;
- an external coil comprising a lateral perimeter defined by a truncated circle comprising a primary arc portion and a substantially straight line portion, the external coil having an external coil shape and disposed within the housing perimeter;
- a battery disposed between the housing perimeter and entirely outside of the lateral perimeter of the external coil at a location proximate the substantially straight line portion;
- and
- an implantable coil having an implantable coil shape that is substantially similar to the external coil shape,
- wherein the external coil is configured to transmit a signal to the implantable coil when the implantable coil is implanted in a recipient.
3 more elements
Dependencies are inferred from the claim text.