Patent application number | Description | Published |
20120107999 | METHOD OF FABRICATING FLEXIBLE ARTIFICIAL RETINA DEVICES - Fabrication methods for a flexible device for retina prosthesis are described. Layered structures including an array of pixel units may be formed over a substrate. Each pixel unit may comprise a processing circuitry, a micro electrode and a photo sensor. A first set of biocompatible layers may be formed over the layered structures. The substrate may be thinned down to a controlled thickness of the substrate to allow bending of the substrate to the curvature of a retina. A second set of biocompatible layers may be formed over the thinned substrate. The second set of biocompatible layers may be in contact with the first set of biocompatible layers to form a biocompatible seal wrapping around the device to allow long-term contact of the device with retina tissues. Micro electrodes of the pixel units may be exposed through the openings of these biocompatible layers. | 05-03-2012 |
20120109255 | Retina Stimulation Apparatus and Manufacturing Method Thereof - The invention discloses a retina stimulation apparatus and a manufacturing method thereof The apparatus comprises a pixel unit, a power supply module and a flexible package. The pixel unit and power supply module are disposed on and covered by the flexible package, and the power supply module can supply power to the pixel unit after being charged. Each pixel unit comprises a photosensor, a signal processing and driving unit and a stimulating electrode. The photosensor detects an incident light and provides a sensing signal to the signal processing and driving unit, and the processing unit generates a stimulation signal with an appropriate waveform to the stimulating electrode according to the sensing signal. Through the stimulating electrode, a stimulation current is used to stimulate retina ganglion cells. | 05-03-2012 |
20120109295 | METHODS AND APPARATUSES FOR CONFIGURING ARTIFICIAL RETINA DEVICES - Methods and apparatuses for configuring an implantable device to interface with retina cells are described. The device may comprise an array of pixel units capable of stimulating the retina cells are described. The pixel units may operate in a mode of operation selected from a plurality of modes including a normal mode and a calibration mode. A control circuitry of the device may be configured to switch the mode of operation for the pixel units. In one embodiment, the pixel units may be configured to receive light for stimulating the retina cells during the normal mode to enable perception of the light. During the calibration mode, the pixel units may be configured to adjust amount of stimulation to the retina cells. | 05-03-2012 |
20120109296 | FLEXIBLE ARTIFICIAL RETINA DEVICES - An implant apparatus comprising a plurality of photo sensors, a plurality of micro electrodes and circuitry coupled to the photo sensors and the micro electrodes are described. The photo sensors may receive incoming light. The circuit may drive the micro electrodes to stimulate neuron cells for enabling perception of a vision of the light captured by the photo sensors. The apparatus may be implemented in a flexible material to conform to a shape of a human eyeball to allow the micro electrodes aligned with the neuron cells for the stimulation. | 05-03-2012 |
20120279060 | METHODS AND APPARATUSES FOR NON-PLANAR CHIP ASSEMBLY - Methods and apparatuses for assembly of a non-planar device based on curved chips are described. Slots may be created as longitudinal openings in the chips to reduce bending stresses to increase allowable degrees of deformation of the chips. The chips may be deformed to a desired deformation within the allowable degrees of deformation via the slots. Holding constraints may be provided on at least a portion of the chips to allow the chips to remain curved according the desired deformation. | 11-08-2012 |
20120283799 | NON-PLANAR CHIP ASSEMBLY - A non-planner integrated circuit device comprising a flexible structure and at least one fixture structure bonded to the flexible structure is described. The flexible structure may be curved in a desired deformation. A plurality of contact areas may be included in the flexible structure. Circuitry may be embedded within the flexible structure to perform processing operations. In one embodiment, the fixture structure may be bonded with the fixture structure via the contact areas to provide holding constraints allowing the flexible structure to remain curved. The bonding pads can also be used to connect communications in electrical signals. | 11-08-2012 |
20140080257 | METHOD FOR NON-PLANAR CHIP ASSEMBLY - Methods and apparatuses for assembly of a non-planar device based on curved chips are described. Slots may be created as longitudinal openings in the chips to reduce bending stresses to increase allowable degrees of deformation of the chips. The chips may be deformed to a desired deformation within the allowable degrees of deformation via the slots. Holding constraints may be provided on at least a portion of the chips to allow the chips to remain curved according the desired deformation. | 03-20-2014 |
20150374990 | METHODS AND APPARATUSES FOR CONFIGURING ARTIFICIAL RETINA DEVICES - Methods and apparatuses to detect configuration commands from waveforms received at a retina prosthesis device for calibrating the device are described. The device can comprise an array of pixel units to receive light to stimulate neuron cells to cause an effect of visual sensation from the light. The pixel units may have configurable parameters for the stimulation to the neuron cells. The configurable parameters may be updated according to the configuration commands detected without requiring micro processor and non-volatile memory in the device. The stimulation may be generated according to the updated configurable parameters to improve the effect of visual sensation from the light including compensation for the physiological and environmental variations and drifts. | 12-31-2015 |