Multi-point probe, electronic contact sheet for configuring the same, multi-point probe array, and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-10588525-B2
Application number	US-201414892485-A
Country	US
Kind code	B2
Filing date	May 21, 2014
Priority date	May 21, 2013
Publication date	Mar 17, 2020
Grant date	Mar 17, 2020

Abstract

Provided is a multi-point probe which is formed of a tubular laminate which is configured by winding an electronic contact sheet including a sheet-shaped insulating base material, a plurality of electronic contacts which are arranged to be separated from each other in a column shape on the sheet-shaped insulating base material, and a plurality of wirings which are connected to each of the electronic contacts on the sheet-shaped insulating base material from a first end towards a second end and laminating the electronic contact sheet to have multiple layers, in which the electronic contacts are not covered with the sheet-shaped insulating base material and are exposed, and the wiringsther than a wiring on the uppermost layer are laminated so that at least some parts thereof are covered with the sheet-shaped insulating base material.

First claim

What is claimed is:

1. A multi-point probe comprising:
a probe; and
an electronic contact sheet adapted to wind around the probe, wherein the electronic contact sheet comprises:
a base formed from an insulating sheet comprising a distal edge, a proximal edge, a first lateral edge parallel to a longitudinal axis of the probe and a second lateral edge parallel to and opposite from the first lateral edge, wherein the distal edge recedes from the first lateral edge to the second lateral edge;
a plurality of electronic contacts separated from each other and arranged along a distal portion of an upper surface of the base; and
a plurality of wirings, wherein each of the plurality of wirings are connected to a corresponding plurality of electronic contacts and extends from a first end towards a second end; and

wherein when the electronic contact sheet winds around the probe, the electronic contact sheet forms a tubular shape having multiple layers so that the plurality of electronic contacts are arranged spirally along the longitudinal axis and are exposed to an external environment; and
wherein the plurality of wirings other than an uppermost layer of the multiple layers are covered with another layer of the multiple layers.

2. The multi-point probe according to claim 1 , wherein the plurality of wirings are extended along the longitudinal axis over a predetermined range using the plurality of electronic contacts as a starting point.

3. The multi-point probe according to claim 1 , further comprising a plurality of pads which are connected to each of the second end of the plurality of the wirings and configured to connect to an external circuit.

4. The multi-point probe according to claim 3 , wherein the plurality of wirings are covered with a first insulating material so that the plurality of electronic contacts and the plurality of pads are exposed.

5. The multi-point probe according to claim 4 ,
wherein a first shielding conductive layer is formed on a bottom surface of the base.

6. The multi-point probe according to claim 5 ,
wherein a second shielding conductive layer is formed on the upper surface of the base where the plurality of wirings are arranged.

7. The multi-point probe according to claim 1 , further comprises an amplifier connected to the plurality of electronic contacts.

8. A multi-point probe array, wherein the plurality of multi-point probes according to claim 1 are provided on a base substrate and arranged to stand apart from each other.

9. An electronic contact sheet according to claim 1 .

10. A manufacturing method of the multi-point probe according to claim 4 ,
winding the first lateral end towards the second lateral end so that the plurality of electronic contacts are exposed;
coating the second insulating material on the entire electronic contact sheet; and
removing the second insulating material disposed on the plurality of electronic contacts and the plurality of pads.

Assignees

• Japan Science & Tech Agency

Inventors

• Someya Takao
• Sekitani Tsuyoshi
• Sakai Shinri

Classifications

• A61B2562/0217

  Electrolyte containing · CPC title

• A61B2562/125

  characterised by the manufacture of electrodes · CPC title

• A61B2562/043

  in a linear array · CPC title

• A61N1/0551

  Spinal or peripheral nerve electrodes · CPC title

• A61N1/0502

  Skin piercing electrodes · CPC title