公开(公告)号：US5178161A

公开(公告)日：1993-01-12

申请号：US671640

申请日：1991-03-19

申请人： Gregory T. A. Kovacs

发明人： Gregory T. A. Kovacs

IPC分类号： A61B17/11 ,  A61F2/58 ,  A61F2/68 ,  A61N1/05 ,  A61N1/36

CPC分类号： A61N1/3605 ,  A61B17/1128 ,  A61F2/68 ,  A61F2/583 ,  A61N1/0551 ,  A61N1/37205 ,  A61N1/37211

摘要： A microelectrode interface is disclosed for localizing the stimulation and recording of action potentials at a portion of a nervous system. The shapes of the electrodes are such that the number of ion flux lines actually intersecting a portion of the nervous system to be stimulated is increased or even maximized. This is accomplished by choosing microelectrodes of the shape such that they are at least as large in dimension at locations away from the other microelectrode as are locations close to the other microelectrode. The microelectrodes are on one side of a chip so that it is possible to stimulate a portion of the central nervous system by placing the microelectrodes alongside the portion. By employing microelectrodes on both sides of a chip or plate, the nervous system can be stimulated in a bipolar mode as well as the unipolar mode. The microelectrode on the back side also reduces noise. A circuit is disclosed for applying current only to one or more selected pairs of microelectrodes in an array of microelectrodes. Row and column select lines, switches and multiplexers are used for passing current only between pairs of microelectrodes at selected locations in the array for stimulating a portion of a nervous system only at selected locations.

摘要翻译： 公开了一种微电极界面，用于在神经系统的一部分定位刺激和记录动作电位。 电极的形状使得实际上与待刺激的神经系统的一部分实际相交的离子通量线的数量增加甚至最大化。 这是通过选择形状的微电极来实现的，使得它们在远离另一个微电极的位置处的尺寸至少与接近另一个微电极的位置一样大。 微电极位于芯片的一侧，使得可以通过将微电极放置在该部分旁边来刺激一部分中枢​​神经系统。 通过在芯片或板的两侧使用微电极，神经系统可以以双极模式以及单极模式被刺激。 背面的微电极也会降低噪音。 公开了一种用于将电流仅施加到微电极阵列中的一个或多个选定的微电极对的电路。 行和列选择线，开关和多路复用器仅用于在阵列中的选定位置处仅在成对的微电极之间传递电流，以仅在选定位置刺激神经系统的一部分。