Implantable microelectrode

Surgery – Truss – Pad

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

607116, A61B 5042

Patent

active

055158480

ABSTRACT:
A miniature, electrically-insulated multi-conductor electrical cable suitable for implantation in living bodies and readily connected to sensors or electrodes, and implantable microelectrodes attached to such cables. Individual electrical conductors are coated with at least one layer of, insulating material and stranded together, or optionally bound together by an additional layer of insulating material which is compatible with implantation in living bodies. The individual conductors are separated from one another in terminal portions of the cable and are held by a ribbonizing resin at a predetermined pitch to facilitate connection of each of the conductors. The terminal portions may define microelectrodes. Another microelectrode includes an electrically conductive electrode core member sharpened and coated with a thin layer of a dielectric material. An extremely small area of the core at the sharpened point is exposed by ablating the dielectric material by the use of an ultraviolet laser beam scanned over the material. Multiple conductor microelectrodes may also be supported within a hollow needle or in flat ribbon configuration, with openings in dielectric material defining active electrode sites. Multiple active electrode sites may be defined on a microelectrode accompanied by an integrated circuit after connection of the integrated circuit to a multiconductor cable.

REFERENCES:
patent: 3775552 (1973-04-01), Schumacher
patent: 3857996 (1974-03-01), Hansen et al.
patent: 3881246 (1975-11-01), Folk
patent: 4261372 (1981-04-01), Hansen et al.
patent: 4284841 (1981-02-01), Tijunelis et al.
patent: 4495917 (1985-03-01), Byers
patent: 4503124 (1985-03-01), Keane et al.
patent: 4532930 (1985-02-01), Crosby et al.
patent: 4614028 (1986-03-01), Rich
patent: 4640983 (1987-01-01), Comte
patent: 4800236 (1989-01-01), Lemke
patent: 4804337 (1989-02-01), Sebastien et al.
patent: 4809712 (1989-03-01), Kuzma
patent: 4819329 (1989-02-01), Haley et al.
patent: 4840186 (1989-02-01), Lekholm et al.
patent: 4964414 (1990-10-01), Handa et al.
patent: 5015800 (1991-03-01), Vaupotic et al.
patent: 5074947 (1991-12-01), Estes et al.
patent: 5111812 (1992-02-01), Swanson et al.
patent: 5123422 (1992-04-01), Charvin
patent: 5220130 (1993-03-01), Walters
Klomp et al "Fabrication of Large Arrays of Cortical Electrodes for Use in Man" J. Biomed. Mater. Res., pp. 347-364, 1977.
The Parylene Press, No. 17, Summer 1994.
Gerald E. Loeb, M.D., Progress Toward a Visual Prosthesis, Sep. 1991, pp. 1-11.
Gerald E. Loeb, M.D., Neural prosthetic interfaces with the nervous system, May 1989, Trends in Neuroscience, vol. 12, No. 5, pp. 195-201.
Hugh S. Lusted, In Vivo Electrical Stimulation Using Multichannel Photolighographic Electrode Arrays, Aug. 1986, IEEE Transactions on Biomedical Engineering, vol. BME-33, No. 8, pp. 800-803.
Promotional Material, Repair and Recoating of Parylene Coated Printed Circuit Boards, Specialty Coating Systems, Union Carbide, 1992, p. 10.
MWS Wire Industries Technical Data Sheet--Aug. 1990, pp. 12-15.
M. J. Mela, Microperforation with Laser Beam in the Preparation of Microelectrodes, 1965, IEEE Transactions on Biomedical Engineering, vol. BME-13, No. 2, pp. 70-76.
Gerald E. Loeb, et al., Parylene as a Chronically Stable, Reproducible Microelectrode Insulator, 1977, IEEE Transactions on Biomedical Engineering, vol. BME-24, No. 2, pp. 121-128.
S. J. Tanghe, et al., A Planar IrO Multichannel Stimulating Electrode for Use in Neural Prostheses, 1990, pp. 464-467.
K. Najafi, et al., A High-Yield IC-Compatible Multichannel Recording Array, 1985, IEEE Transactions on Electron Devices, vol. ED-32, No. 7, pp. 1206-1211.
B. P. Levy, et al., Definition of the Geometric Area of a Microelectrode Tip by Plasma Etching of Paylene, 1986, IEEE Transactions on Biomedical Engineering, vol. BME-33, No. 11, pp. 1046-1049.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Implantable microelectrode does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Implantable microelectrode, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Implantable microelectrode will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1890255

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.