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公开(公告)号：EP1177011A1
公开(公告)日：2002-02-06
申请号：EP00931105.1
申请日：2000-05-03
发明人： NISCH, Wilfried , STETT, Alfred , SCHUBERT, Markus , GRAF, Michael , GRAF, Heinz, Gerhard , HÄMMERLE, Hugo , ZRENNER, Eberhart , STELZLE, Martin
IPC分类号： A61N1/36
CPC分类号： A61F2/14 , A61N1/0543 , A61N1/36046 , H01L27/14609
摘要： The invention relates to a retina implant having a surface (27) on which a plurality of pixel elements (21) is provided for receiving and converting incident light energy into electric energy. The inventive retina implant comprises at least one amplifier (24) with a plurality of stimulation electrodes (25) which are controlled by the at least one amplifier (24) according to the signals received by the pixel elements (21). At least one photosensitive reference element (22) is provided which is coupled to the at least one amplifier (24) in order to control the amplification factor thereof according to the amount of incident light energy on the at least one reference element (22).
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2.发明公开OPTISCH ANSTEUERBARE MIKROELEKTRODENANORDNUNG ZUM STIMULIEREN VON ZELLEN, INSBESONDERE RETINA-IMPLANTAT 失效光寻址微电极排列，刺激细胞，尤其是视网膜植入物
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
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
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).
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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
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
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).
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公开(公告)号：EP1178763A1
公开(公告)日：2002-02-13
申请号：EP00929480.2
申请日：2000-05-03
发明人： NISCH, Wilfried , STETT, Alfred , SCHUBERT, Markus , GRAF, Michael , GRAF, Heinz, Gerhard , HÄMMERLE, Hugo , ZRENNER, Eberhart , STELZLE, Martin , SACHS, H.
IPC分类号： A61F2/14
CPC分类号： A61N1/0543 , A61F2/14 , A61F9/08 , A61N1/3787
摘要： The invention relates to a retina implant (30) and a method for producing the same. The inventive retina implant comprises a chip (36) for subretinal implantation and has a receiver coil (37). Said receiver coil is provided for inductively inducing electromagnetic energy and is coupled to a converter device (35) for converting an alternating voltage induced in the receiver coil (37) into a direct voltage that is appropriate for supplying current to the chip (36). The receiver coil (37) is configured and dimensioned to be placed and positioned on the eyeball (10) outside of the sclera (12). The converter device (35) is preferably constructed as a separate unit which can be positioned on the sclera (12) outside of the eyeball (10).
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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
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
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).
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