| Autor: |
Eberhart Zrenner, Steffen Kibbel, Albrecht Rothermel, Walter-G. Dr. Wrobel, Alex Harscher |
| Rok vydání: |
2009 |
| Předmět: |
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| Zdroj: |
IFMBE Proceedings ISBN: 9783642038860 |
| Popis: |
The aim of the subretinal implant is to restore visual perception in blind patients suffering from retinitis pigmentosa (RP) and - at a later stage - age-related macular degeneration (AMD). Electrical stimulation of the remaining retinal neurons can restore meaningful visual perceptions [1, 2]. Our retina implant, consisting of a light sensitive CMOS chip (1,500 pixels) and 16 separate direct stimulation electrodes, is presently being tested successfully in a clinical pilot study with 12 patients. A detailed analysis of the data obtained sofar led to a redesign of the CMOS chip [4]. Results of the technical characteristics of this next generation retina chip are presented here. The chip was designed in cooperation with the Institute of Microelectronics at the University of Ulm. Tests in vitro show that the chip performs according to its specifications. Implants with an inductively coupled power supply equipped with the novel chip are in production and will soon be ready for extensive testing in vivo. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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