公开(公告)号：US07751896B2

公开(公告)日：2010-07-06

申请号：US11305920

申请日：2005-12-19

申请人： Heinz-Gerhard Graf ,  Alexander Dollberg ,  Bernd Hoefflinger ,  Wilfried Nisch ,  Hugo Haemmerle ,  Alfred Stett ,  Martin Stelzle ,  Eberhart Zrenner

发明人： Heinz-Gerhard Graf ,  Alexander Dollberg ,  Bernd Hoefflinger ,  Wilfried Nisch ,  Hugo Haemmerle ,  Alfred Stett ,  Martin Stelzle ,  Eberhart Zrenner

IPC分类号： A61F2/14

CPC分类号： A61N1/36046

摘要： An active retina implant has a multiplicity of pixel elements that convert incident light into electric stimulation signals for cells of the retina with which stimulation electrodes are to make contact. Each pixel element is provided with at least one image cell that converts incident light into electric signals, there being provided at least one amplifier whose input is connected to the image cell and whose output is connected to at least one stimulation electrode to which it supplies a stimulation signal. Also provided is an energy supply which provides externally coupled external energy as supply voltage for the image cells and the amplifiers. The image cell has a logarithmic characteristic according to which incident light of specific intensity is converted into electric signals of specific amplitude. The stimulation signal is supplied in the form of analog voltage pulses of specific pulse length and pulse spacings, the pulse amplitude being a function of the intensity of the incident light.

摘要翻译： 活性视网膜植入物具有多个像素元件，其将入射光转换成用于刺激电极与之接触的视网膜细胞的电刺激信号。 每个像素元件设置有将入射光转换成电信号的至少一个图像单元，其中提供至少一个放大器，其输入端连接到图像单元，其输出端连接至至少一个刺激电极， 刺激信号。 还提供了一种将外部耦合的外部能量作为图像单元和放大器的电源电压的能量供给。 图像单元具有对数特性，根据该特性，将特定强度的入射光转换成特定幅度的电信号。 刺激信号以特定脉冲长度和脉冲间隔的模拟电压脉冲的形式提供，脉冲幅度是入射光强度的函数。

公开(公告)号：US20060184245A1

公开(公告)日：2006-08-17

申请号：US11305920

申请日：2005-12-19

申请人： Heinz-Gerhard Graf ,  Alexander Dollberg ,  Bernd Hoefflinger ,  Wilfried Nisch ,  Hugo Haemmerle ,  Alfred Stett ,  Martin Stelzle ,  Eberhart Zrenner

发明人： Heinz-Gerhard Graf ,  Alexander Dollberg ,  Bernd Hoefflinger ,  Wilfried Nisch ,  Hugo Haemmerle ,  Alfred Stett ,  Martin Stelzle ,  Eberhart Zrenner

IPC分类号： A61F2/14

CPC分类号： A61N1/36046

摘要： An active retina implant has a multiplicity of pixel elements that convert incident light into electric stimulation signals for cells of the retina with which stimulation electrodes are to make contact. Each pixel element is provided with at least one image cell that converts incident light into electric signals, there being provided at least one amplifier whose input is connected to the image cell and whose output is connected to at least one stimulation electrode to which it supplies a stimulation signal. Also provided is an energy supply which provides externally coupled external energy as supply voltage for the image cells and the amplifiers. The image cell has a logarithmic characteristic according to which incident light of specific intensity is converted into electric signals of specific amplitude. The stimulation signal is supplied in the form of analog voltage pulses of specific pulse length and pulse spacings, the pulse amplitude being a function of the intensity of the incident light.

摘要翻译： 活性视网膜植入物具有多个像素元件，其将入射光转换成用于刺激电极与之接触的视网膜细胞的电刺激信号。 每个像素元件设置有将入射光转换成电信号的至少一个图像单元，其中提供至少一个放大器，其输入端连接到图像单元，其输出端连接至至少一个刺激电极， 刺激信号。 还提供了一种将外部耦合的外部能量作为图像单元和放大器的电源电压的能量供给。 图像单元具有对数特性，根据该特性，将特定强度的入射光转换成特定幅度的电信号。 刺激信号以特定脉冲长度和脉冲间隔的模拟电压脉冲的形式提供，脉冲幅度是入射光强度的函数。