Surgery – Truss – Pad
Patent
1991-03-19
1993-01-12
Howell, Kyle L.
Surgery
Truss
Pad
128642, 128419R, A61N 105
Patent
active
051781611
ABSTRACT:
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.
REFERENCES:
patent: 4539995 (1985-09-01), Segawa
patent: 4573421 (1986-03-01), Bulbara
patent: 4590946 (1986-05-01), Loeb
patent: 4623355 (1986-11-01), Sawruk
patent: 4628933 (1986-12-01), Michelson
patent: 4632116 (1986-12-01), Rosen et al.
patent: 4785812 (1988-11-01), Pihl et al.
patent: 4820263 (1989-04-01), Spevak et al.
patent: 4837049 (1989-06-01), Byers et al.
"Two Research Efforts Spark Hope in Repair of Damaged Nerves", Michael Bowker, Los Angeles Times, May 28, 1988.
"Sci-fi microchip: the future of nerve repair", Eric Ly, The Stanford Daily, Apr. 21, 1988.
"Discovery may repair nerves", Kevin Montague, The Stanford Daily, Jul. 29, 1988.
"Development of Chronic Implant Neural Prosthesis Microelectrode Arrays", Kovacs et al., IEEE Montech '87, Nov. 10-12, 1987, pp. 152-155.
"Putting Brainpower in a Box", Christine Gorman, Time, Aug. 8, 1988, p. 59.
"Design and Implementation of Two-Dimensional Neural Interfaces", Kovacs et al., Stanford University Depts of Electrical Engineering.
"Stanford University General Purpose Microelectrode Fabrication Process", Kovacs et al., Stanford University Depts. of Electrical Engineering.
"Advances Toward Development of Microelectronic Axonal Interface Neuroprostheses", Kovacs et al., Stanford University Depts. of Electrical Eng'g.
"Implantable Monolithic Wafer Recording Electrodes for Neurophysiology", Llinas et al., Brain Unit Activity During Behavior, 1973, pp. 105-111.
"Bullfrog nerve regenration into porous implants", Anne F. Marks, American Association of Anatomists, Anatomical Record 163, 1969, p. 226.
"Regeneration Electrode Units: Implants for Recording . . . Freely Moving Animals", Mannard et al., Science, vol. 183, Feb. 8, 1974, pp. 547-549.
"Analysis and microelectronic design . . . from captured nerve fibres", Loeb et al., Med. & Bio. Eng. & Comput., Mar. 15, 1977, pp. 195-201.
Howell Kyle L.
Schaetzle Kennedy J.
The Board of Trustees of the Leland Stanford Junior University
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