8 results about "Retinal implant" patented technology

In variations, a neural interface system (e.g., a retinal implant, a neural implant, etc.) may include a display, a controller, a power supply, and / or any other suitable component. The system may be used with an external device including a communication element, a display-brain interface (e.g., a cell), and / or any other suitable component.

The system for optical stimulation can include: a light source, a display module, a steering module, a sensor module, and a processing system. In variants, the system can function to project a time series of patterned light frames onto the retina of an eye (e.g., onto optogenetically modified cells in the retina, onto a retinal implant, etc.).

The system for optical stimulation can include: a light source, a display module, a steering module, a sensor module, and a processing system. In variants, the system can function to project a time series of patterned light frames onto the retina of an eye (e.g., onto optogenetically modified cells in the retina, onto a retinal implant, etc.).

Photovoltaic retinal prosthesis is provided with optically configurable confinement of electrical field. A video stream is projected onto a retinal implant. An array of photovoltaic pixels is configured to provide retinal stimulus responsive to the video stream. The photovoltaic pixels have a common return electrode. Each pixel has an active electrode that is coupled to retinal tissue via a capacitive interface or a faradaic interface. Each pixel includes photodiode(s) connected in series between the common return electrode and the corresponding active electrode. The projected video stream is configured based on a source video stream such that one or more pixels of the retinal implant that will be dark in a next frame of the projected video stream are optically preconditioned (pre-charged) by the projected video stream during the previous frame to become sufficiently conductive to act as transient local return electrodes during the next frame of the projected video stream.

This invention relates to an energy harvester (7) and charger (1) system that utilizes rotating magnetic field technology to meet the energy needs of biomedical devices that are implantable into the body by a minimally invasive method. This technology aiming to solve the problem of battery depletion in devices such as pacemakers will significantly reduce the dependence on surgical interventions. The charger (1), electric motor (3), and permanent magnets (6) provide the energy harvester (7) with a variable magnetic field. The energy harvester (7) converts alternating current into direct current by generating electric current in its coil / coils (8) with this magnetic field. The generated energy is stored in a rechargeable battery (12) in accordance with the levels required by biomedical devices. The system works with low-frequency magnetic fields to keep SAR values within safe limits and minimizes negative effects such as tissue heating. It also ensures efficient energy production. The materials used in the energy harvester are biocompatible and toxic effects are avoided. The invention reduces the risks of surgery and increases patient comfort with its minimally invasive nature. It provides economic and health advantages by reducing the frequency of battery replacement of implantable devices such as pacemakers. It can also be used in other biomedical devices such as defibrillators, neurostimulators, cochlear implants, and retinal implants.

Provided herein are hybrid neuro-electronic retinal implants integrating micro-well electrode arrays, biomimetic surface coatings, glutamatergic neurons, and neurotrophic modulation for at least partial vision restoration in retinal dysfunctional conditions.

Arrangement (1) for stimulating a retina (2), comprising: - a camera (3), - a large number of electrodes (5) for interaction with the retina (2), - an electronics (6) which is set up to ▪ to determine a target value (8) for the stimulation of the retina (2) for a large number of pixels, ▪ to determine a respective set of stimulation parameters (9) for each of the pixels, ▪ to deliver to one of the electrodes (5) for each of the pixels to stimulate the retina (2), ▪ to receive action potentials (11) generated by the retina (2) for each of the pixels, ▪ to determine an actual value (13) of the stimulation of the retina (2) for each of the pixels, ▪ to adjust the determination of the set of stimulation parameters (9) for each of the pixels such that the actual value (13) approaches the target value (8), wherein at least the plurality of electrodes (5) is designed as part of a retinal implant (19) of the arrangement (1).

The disclosure refers to a photosensitive pixel structure that includes a substrate layer and an interface layer. The interface layer is provided at least partially on a first surface of the substrate layer and the interface layer at least partially includes a first material layer and the interface layer at least partially includes a second material layer covering the first material layer such that the first material layer is at least partially sandwiched between the second material layer and the substrate. The second material layer has a thickness chosen from a range of 200 nm-600 nm, 300 nm-500 nm, or 320 nm-450 nm. The disclosure further refers to an array and an implant that includes a pixel structure and a method for providing a pixel structure.