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 system comprising:
an accommodating intraocular lens (alOL) enclosed in a first enclosure of biocompatible material, the alOL including:
a dynamic optic to provide dynamic accommodation to an eye;
first control logic coupled to the dynamic optic to control actuation of the dynamic optic based on detection of an attempted accommodation by the eye;
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 biocompatible material,
the second enclosure physically distinct 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 couple to the alOL through the second antenna to inductively charge the battery of the alOL;
a sensor to detect the attempted accommodation by the eye by monitoring a ciliary muscle of the eye or by monitoring movement of a capsular bag of the eye; and
second control logic electrically coupled to the sensor, the second control logic adapted to transmit information indicative of the attempted accommodation to the first control logic of the alOL,
wherein the alOL is sized and adapted to be implanted in one of an anterior chamber, a posterior chamber, a sulcus, or a capsular bag and the auxiliary electronics are sized and adapted to be implanted in or on a sclera,
wherein the auxiliary electronics are adapted to wirelessly couple to the alOL for wireless transmission of power and the information indicative of the attempted accommodation by the eye.
2. The ophthalmic system of claim 1 , wherein the second control logic is adapted to wirelessly transmit the information indicative of the attempted accommodation with the second antenna.
3. The ophthalmic system of claim 1 , wherein the auxiliary electronics further comprise a third antenna, and wherein the second control logic is adapted to wirelessly transmit the information indicative of the attempted accommodation with the third antenna.
4. The ophthalmic system of claim 1 , wherein the second enclosure of biocompatible material hermetically seals the auxiliary electronics.
5. The ophthalmic system of claim 1 , wherein the first and second antennae are circular-shaped, helical coil antennae.
6. The ophthalmic system of claim 1 , wherein the second antenna is an oval-shaped, helical coil antenna.
7. The ophthalmic system of claim 1 , wherein the sensor detects the attempted accommodation by monitoring relative movement of the capsular bag.