Nano-retina, Inc.

Ams Research Corporation

Rainbow Medical Ltd.

Shai Vaingast

Yossi Gross

Ra'anan Gefen

Tuvia Liran

Yosef Gross

Man Van Nguyen

An external device is provided for use with an intraocular device configured to be implanted entirely in an eye of a subject. The external device includes a mount configured to be placed in front of the eye and a sensor coupled to the mount and configured to sense a level of ambient light. The external device additionally includes an external power source coupled to the mount and configured to (i) emit toward the eye non-visible light that is outside of 380-750 nm, and (ii) modulate the non-visible light based on the level of ambient light sensed by the sensor. Other application are also described.

Retinal prosthesis with an external power source

Apparatus is provided, including an external device, including a mount, placed in front of an eye, and a laser which emits toward the eye radiation that is outside of 380-750 nm. The apparatus additionally includes an intraocular device which is implanted entirely in the eye, and includes an energy receiver, a plurality of stimulating electrodes, a plurality of photosensors, and driving circuitry coupled to the energy receiver and to the photosensors, and configured to drive the electrodes to apply currents to a retina of the eye in response to the signals from the photosensors. The photosensors are (a) generally insensitive to the energy from the laser, and (b) generally sensitive to visible light. Other applications are also described.

Retinal prosthesis with visible-light filter

An external device () includes a mount (), which is placed in front of a subject's eye. A laser () is coupled to the mount () and emits radiation () that is outside of 380-750 nm. A partially-transparent mirror () is coupled to the mount (). An intraocular device () is implanted entirely in the subject's eye, and includes a plurality of stimulating electrodes (), and an energy receiver (), which receives the radiation () from the laser () and generates a voltage drop. A plurality of photosensors () detect photons () and generate a signal. Driving circuitry () is coupled to the energy receiver () and to the photosensors (), and receives the signals from the photosensors () and utilizes the voltage drop to drive the electrodes () to apply currents to the retina in response to the signals from the photosensors (). Other embodiments are also described.

Retinal prosthesis

Apparatus for use with an external non-visible light source is provided. The apparatus comprises an intraocular device configured for implantation in a human eye, and comprising an energy receiver. The energy receiver is configured to receive light emitted from the external non-visible light source, and extract energy from the emitted light for powering the intraocular device. The intraocular device is configured to regulate a parameter of operation of the intraocular device based on a modulation of the light emitted by the external non-visible light source and received by the energy receiver. Other embodiments are also described.

Techniques for powering a retinal prosthesis

Retinal prosthesis techniques

Apparatus is provided, including an external device, including a mount, which is placed in front of an eye of a subject. A laser is coupled to the mount and configured to emit toward the eye radiation that is outside of 380-750 nm. A partially-transparent mirror is coupled to the mount. An intraocular device is implanted entirely in the subject's eye, and includes a plurality of stimulating electrodes, and an energy receiver, which receives the radiation from the laser and generates a voltage drop in response thereto. A plurality of photosensors detect photons and generate a signal in response thereto. Driving circuitry is coupled to the energy receiver and to the photosensors, and receives the signals from the photosensors and utilizes the voltage drop to drive the electrodes to apply currents to the retina in response to the signals from the photosensors. Other embodiments are also described.

Embodiments of the invention are directed to a device that includes a battery having an output of a battery voltage, a step-up voltage converter, a high voltage circuit, a low voltage circuit and a controller. The step-up voltage converter includes an input that is coupled to the battery voltage. The step-up voltage converter is configured to produce a high supply voltage at an output. The high voltage circuit is coupled to the output of the step-up voltage converter. The controller selectively powers the low voltage circuit using either the output from the step-up voltage converter or the battery voltage.

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Ganei Tikva, Israel

Shai Vaingast