Intraocular device with wirelessly coupled auxiliary electronics
Techniques and mechanisms for the wireless transmission of power and sensor information between two components of an implantable ophthalmic device are disclosed herein. An example device includes an accommodating intraocular lens (aIOL) and separate auxiliary electronics, both enclosed in biocompatible materials. The aIOL includes a dynamic optic, control logic, a battery and an antenna. The auxiliary electronics include an antenna, an energy storage cell, and a sensor. The auxiliary electronics may be wirelessly coupled to the aIOL for the wireless transmission of power and sensor information.
1. An ophthalmic device comprising:
an accommodating intraocular lens (aIOL) enclosed in a first enclosure of a first biocompatible material, the aIOL including:
a dynamic optic to provide dynamic accommodation to an eye based upon detection of an attempted accommodation by the eye;
first control logic coupled to the dynamic optic to control actuation of the dynamic optic;
a battery electrically coupled to power the first control logic and the dynamic optic; and
a first antenna coupled to the battery; and
auxiliary electronics enclosed in a second enclosure of a second biocompatible material, the second enclosure discrete and physically separated from the first enclosure, the auxiliary electronics including:
a second antenna;
an energy storage cell coupled to the second antenna, the energy storage cell adapted to inductively charge the battery of the aIOL via the second antenna; and
an accommodation sensor adapted to detect the attempted accommodation of the eye by monitoring a ciliary muscle of the eye or by monitoring movement of a capsular bag of the eye,
wherein the auxiliary electronics are adapted to wirelessly couple to the aIOL for wireless transmission of power and information indicative of the attempted accommodation by the eye.
2. The ophthalmic device of claim 1 , wherein the auxiliary electronics further comprise second control logic, the second control logic electrically coupled to the sensor, and configured to wirelessly transmit a signal indicative of the attempted accommodation to the aIOL.
3. The ophthalmic device of claim 2 , wherein the second control logic wirelessly transmits the signal with the second antenna.
4. The ophthalmic device of claim 2 , wherein the auxiliary electronics further comprise a third antenna, and wherein the second control logic wirelessly transmits the signal with the third antenna.
5. The ophthalmic device of claim 1 , wherein the second biocompatible material hermetically seals the auxiliary electronics.
6. The ophthalmic device of claim 1 , wherein the first and second antenna are circular-shaped, helical coil antennae.
7. The ophthalmic device of claim 1 , wherein the second antenna is an oval-shaped, helical coil antenna.
8. The ophthalmic device of claim 1 , wherein the sensor is adapted to detect the attempted accommodation by monitoring a ciliary muscle of the eye.
9. The ophthalmic device of claim 1 , wherein the sensor is adapted to detect the attempted accommodation by monitoring movement of a capsular bag of the eye.
10. The ophthalmic device of claim 1 , wherein the sensor is adapted to detect the attempted accommodation by monitoring relative movement of the capsular bag.