Electrical multichannel system, particularly for neural stimulation

• US 10,293,165 B2
• Filed: 11/04/2013
• Issued: 05/21/2019
• Est. Priority Date: 11/27/2012
• Status: Active Grant

• Current Assignee: Koninklijke Philips N.V.
• Original Assignee: Koninklijke Philips N.V.
• Inventors: Groenland, Alfons Wouter, Wang, Ke
• Primary Examiner(s): Layno, Carl H
• Assistant Examiner(s): Ghand, Jennifer L
• Application Number:
  US14/441,273
• Publication Number:
  US 20150306393A1
• Time in Patent Office: 2,024 Days
• CPC Class Codes: A61B 5/24 Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
• CPC Class Codes: A61N 1/0488 Details about the lead
• CPC Class Codes: A61N 1/0534 Electrodes for deep brain stimulation
• CPC Class Codes: A61N 1/0541 Cochlear electrodes
• CPC Class Codes: A61N 1/0543 Retinal electrodes
• CPC Class Codes: A61N 1/0551 Spinal or peripheral nerve electrodes
• CPC Class Codes: A61N 1/36125 Details of circuitry or electric components

Abstract

The invention relates to an electrical multichannel system (100) and to a neural stimulation and/or recording device comprising such a system. The multichannel system comprises a plurality of application components (130), e.g. stimulation electrodes, and associated access points (120) that are connected by a plurality of electrical lines (110). The resistances of these lines are adjusted to given target values, for example to equal values, by incorporating appropriate tuning sections (140) into the electrical lines. The lines may for example comprise different geometries and/or materials in the tuning sections.

Claims

1. An electrical multichannel system, comprising:

a) a plurality of application components and associated access points;

b) a multichannel track with a plurality of electrical lines, each line connecting one application component to one access point with a given target resistance and comprising a tuning-section with the following features;

the tuning-section extends between a starting-point and an end-point;

a distance between starting-point and end-point is the same for all lines;

a resistivity and a cross-section are substantially the same for all lines at their starting-point;

a resistivity and a cross-section are substantially the same for all lines at their end-point;

the resistances between starting-point and end-point differ between at least one first line and one second line.

2. The electrical multichannel system according to claim 1, characterized in that the geometries of the first line and second line are different in their tuning sections.

3. The electrical multichannel system according to claim 1, characterized in that the first line comprises in the tuning section a subsection composed of at least two materials.

4. The electrical multichannel system according to claim 1, characterized in that the first line and the second line have non-matching courses of resistivity in their tuning sections.

5. An electrical multichannel system according to claim 1, wherein

the first line is not longer than the second line;

the first and the second lines have non-matching courses of resistivity (ρ

).

6. The electrical multichannel system according to claim 5, characterized in that the first line comprises a subsection with a resistivity different from the resistivity at any point of the second line or vice versa.

7. The electrical multichannel system according to claim 5, characterized in that the first line and the second line have different resistivities that are constant along their associated tuning sections.

8. The electrical multichannel system according to claim 5, characterized in that said first line and the second line comprise subsections with differently doped substrates.

9. The electrical multichannel system according to claim 5, characterized in that said first line and the second line comprise subsections with silicides.

10. The electrical multichannel system according to claim 5, characterized in that said first line and the second line have different total lengths outside the tuning sections.

11. The electrical multichannel system according to claim 5, characterized in that the target resistances of all of the plurality of electrical lines are equal to each other.

12. The electrical multichannel system according to claim 5, characterized in that the plurality of electrical lines run along curved parallel paths.

13. The electrical multichannel system according to claim 5, characterized in that the plurality of electrical lines are at least partially realized as thin-film conductors.

14. The electrical multichannel system according to claim 5, characterized in that the application components are implantable electrodes.

15. Neural stimulation and/or recording device, comprising an electrical multichannel system according to claim 1.