公开(公告)号：EP0949937B1

公开(公告)日：2003-08-20

申请号：EP97945844.5

申请日：1997-10-16

申请人： Eberhard-Karls-Universität Tübingen Universitätsklinikum

发明人： NISCH, Wilfried ,  STELZLE, Martin ,  WEISS, Stefan ,  ZRENNER, Eberhard ,  STETT, Alfred ,  GRAF, Heinz, Gerhard ,  GRAF, Michael ,  SCHUBERT, Markus, B. ,  WANKA, Harald, N. ,  HIERZENBERGER, Anke

IPC分类号： A61N1/05 ,  A61N1/32 ,  A61N1/36

CPC分类号： A61N1/0543 ,  A61F2/14 ,  A61F9/08 ,  A61N1/36046

摘要： The invention concerns a retina implant comprising a surface (28) which abuts a retina (12). The surface (28) is provided with electrodes (35) for stimulating cells (27) in the retina (12). The electrodes (35) are controlled by visible light (21') impinging on the retina (12) such that an electrical stimulus (41) is exerted by the electrode (35) on the cell (27). The implant (13) is provided, preferably over a large area, with a photovoltaic layer (30) which is effective for invisible light (25'). The stimuli (41) are switched locally using the voltage generated by the photovoltaic layer (30).

公开(公告)号：EP0949937A1

公开(公告)日：1999-10-20

申请号：EP97945844.0

申请日：1997-10-16

申请人： Eberhard-Karls-Universität Tübingen Universitätsklinikum

发明人： NISCH, Wilfried ,  STELZLE, Martin ,  WEISS, Stefan ,  ZRENNER, Eberhard ,  STETT, Alfred ,  GRAF, Heinz, Gerhard ,  GRAF, Michael ,  SCHUBERT, Markus, B. ,  WANKA, Harald, N. ,  HIERZENBERGER, Anke

IPC分类号： A61L27 ,  A61F9 ,  A61N1 ,  A61F2

CPC分类号： A61N1/0543 ,  A61F2/14 ,  A61F9/08 ,  A61N1/36046

摘要： The invention concerns a retina implant comprising a surface (28) which abuts a retina (12). The surface (28) is provided with electrodes (35) for stimulating cells (27) in the retina (12). The electrodes (35) are controlled by visible light (21') impinging on the retina (12) such that an electrical stimulus (41) is exerted by the electrode (35) on the cell (27). The implant (13) is provided, preferably over a large area, with a photovoltaic layer (30) which is effective for invisible light (25'). The stimuli (41) are switched locally using the voltage generated by the photovoltaic layer (30).

公开(公告)号：EP0951312A1

公开(公告)日：1999-10-27

申请号：EP97945845.0

申请日：1997-10-16

申请人： Eberhard-Karls-Universität Tübingen Universitätsklinikum

发明人： NISCH, Wilfried ,  STELZLE, Martin ,  WEISS, Stefan ,  ZRENNER, Eberhard ,  GÜNTHER, Elke ,  STETT, Alfred ,  GRAF, Heinz, Gerhard ,  GRAF, Michael ,  SCHUBERT, Markus, B. ,  WANKA, Harald, N. ,  HIERZENBERGER, Anke

IPC分类号： A61F9 ,  A61N1

CPC分类号： A61N1/36046 ,  A61F9/08 ,  A61N1/05 ,  A61N1/326

摘要： The invention concerns an optically controllable microelectrode arrangement for stimulating cells (27), in particular a retina implant. This arrangement comprises a surface (28) abutting a tissue, for example a retina (12), containing the cells (27). The surface (28) is provided with electrodes (35a) for stimulating tissue cells (27). The electrodes (35a) are controlled by light (21, 22) impinging on the tissue such that the electrode (35a) exerts an electrical stimulus (41) on the cell (27). The surface (d) of the electrode (35a) used for contact with a cell (27) is substantially smaller than the surface (B) of the cell (27) used for contact with the electrode (35a).