Abstract: A visual restoration aiding device for restoring vision of a patient comprises: a plurality of substrates which are placed on or under a retina of a patient's eye; a plurality of electrodes which are mounted on each substrate to apply an electrical stimulation pulse signal to cells constituting the retina; and a connecting unit which has flexibility and connects the substrates.

Abstract: A vision regeneration assisting apparatus includes: a substrate which is to be placed in a body of a patient; a plurality of electrode groups each having a plurality of electrodes which are arranged on the substrate, the electrodes applying electrical stimulation pulse signals to cells forming a retina of the patient; and a plurality of switch units which are arranged on the substrate and of which one is provided for each electrode group, the switch units selectively switching output of the electrical stimulation pulse signals from each of the electrodes.

Abstract: A visual restoration aiding device for restoring vision of a patient comprises: a plurality of substrates which are placed on or under a retina of a patient's eye; a plurality of electrodes which are mounted on each substrate to apply an electrical stimulation pulse signal to cells constituting the retina; and a connecting unit which has flexibility and connects the substrates.

Abstract: A wire-winding device is characterized, by including a stand, a wire reel carried to the stand with an axis, a carrier with an axis parallelly arranged to that of the wire reel, a guide reel having a drum formed in a beer barrel with side-flanges and rotary supported to the carrier, an apparatus for movably supporting the carrier, and an apparatus for biasing the carrier in such a manner that a wire to be wound is maintained so as to be turned to the wire reel at a predetermined turning point.