Implantable medical device charging
First Claim
Patent Images
1. An implantable medical device system, comprising:
- an inductive charger including a charger coil;
an external component including;
a rechargeable battery,an inductive coil arrangement configured to form an inductive charging link with the charger coil to receive power signals from the inductive charger,a voltage increasing converter configured to step-up a voltage of the power signals received from the inductive charger for use in charging the rechargeable battery, anda voltage decreasing converter configured to step-down a voltage of signals obtained from the rechargeable battery; and
an implantable component including an implantable coil, wherein the inductive coil arrangement is further configured to form a transcutaneous link with the implantable coil to transmit at least one of data and power to the implantable component.
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Abstract
Embodiments presented herein are generally directed to inductive charging techniques in an implantable medical device system comprising an inductive charger and an external component. The external component includes a rechargeable battery and an inductive coil that is configured to form an inductive charging link with a charging coil in the inductive charger to receive power signals from the inductive charger. A voltage increasing converter in the external component is configured to step-up a voltage of the power signals received from the inductive charger for use in recharging the rechargeable battery.
20 Citations
20 Claims
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1. An implantable medical device system, comprising:
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an inductive charger including a charger coil; an external component including; a rechargeable battery, an inductive coil arrangement configured to form an inductive charging link with the charger coil to receive power signals from the inductive charger, a voltage increasing converter configured to step-up a voltage of the power signals received from the inductive charger for use in charging the rechargeable battery, and a voltage decreasing converter configured to step-down a voltage of signals obtained from the rechargeable battery; and an implantable component including an implantable coil, wherein the inductive coil arrangement is further configured to form a transcutaneous link with the implantable coil to transmit at least one of data and power to the implantable component. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An implantable medical device system, comprising:
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an inductive charger including a charger coil; an external component, comprising; a rechargeable battery; a dual-function coil arrangement configured for transcutaneous communication with an implantable component of the implantable medical device system, wherein the dual-function coil arrangement is further configured to receive voltage-limited charging signals from the inductive charger; and a voltage increasing converter and a voltage decreasing converter connected in parallel between the dual-function coil arrangement and the rechargeable battery. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A method, comprising:
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transmitting, via an external coil arrangement of an external component of a hearing prosthesis, at least one of power and data to an implantable component of the hearing prosthesis, wherein the implantable component includes an implantable coil, wherein the external coil arrangement is further configured to form a transcutaneous link with the implantable coil to transmit the at least one of data and power to the implantable component; receiving, via the external coil arrangement, voltage-limited power signals transmitted by a charger coil of an inductive charger over an inductive charging link; increasing, with a voltage increasing converter of the external component, the voltage of the voltage-limited power signals to generate voltage-increased charging signals; delivering the voltage-increased charging signals to a rechargeable battery of the hearing prosthesis; obtaining signals from the rechargeable battery; and decreasing, with a voltage decreasing converter, a voltage of the signals obtained from the rechargeable battery. - View Dependent Claims (17, 18, 19, 20)
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Specification