IP Library Granted Patent US 12,364,858
Granted Patent B2
US 12,364,858 · App. 17/769,965 · Granted Jul 22, 2025

Biological electrode and cardiac pacemaker

Inventors: Shingo Tsukada (Musashino, JP); Tetsuhiko Teshima (Musashino, JP); Hiroshi Nakashima (Musashino, JP)
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
A61N1/0597A61N1/362
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Quick Facts
Patent No.
US 12,364,858
App. No.
17/769,965
Granted
Jul 22, 2025
Kind
B2
Abstract

The present biological electrode includes a conductive fabric ( 2 ) formed of base fibers which are filled with a conductor and/or to which the conductor is adhered, a thin metallic wire ( 3 ) formed into a spiral shape and covered with the conductive fabric ( 2 ) from a side of a distal end in an axis direction, and a filling material ( 5 ) with which a gap between the conductive fabric ( 2 ) and the thin metallic wire ( 3 ) is filled and which supports the conductive fabric ( 2 ) and the thin metallic wire ( 3 ), and the conductor is electrically connected with the thin metallic wire ( 3 ).

Claims (20)

1. A biological electrode comprising:

a conductive fabric formed of base fibers which are filled with a conductor or to which the conductor is adhered;

a thin metallic wire formed into a spiral shape and covered with the conductive fabric from a side of a distal end in an axis direction; and

a filling material with which a gap between the conductive fabric and the thin metallic wire is filled and configured to support the conductive fabric and the thin metallic wire, wherein the thin metallic wire has a spiral spring-shaped structure along the axis, and the conductor is electrically connected with the thin metallic wire;

wherein the distal end of the thin metallic wire forms a convex shape protruding outwardly in the axis direction and the conductive fabric covering the distal end of the thin metallic wire mimics the convex shape protruding outwardly in the axis direction.

2. The biological electrode according to claim 1 , wherein the conductor contains conductive polymers.

3. The biological electrode according to claim 2 , wherein the conductive polymers contain any of polythiophene-based, polyacetylene-based, polyaniline-based, or polypyrrole-based conductive polymers.

4. The biological electrode according to claim 1 , further comprising a pedestal that is formed between the distal end and a base end of the thin metallic wire and supports the conductive fabric and the thin metallic wire.

5. A cardiac pacemaker comprising the biological electrode according to claim 1 .

6. The biological electrode according to claim 2 , further comprising a pedestal that is formed between the distal end and a base end of the thin metallic wire and supports the conductive fabric and the thin metallic wire.

7. The biological electrode according to claim 3 , further comprising a pedestal that is formed between the distal end and a base end of the thin metallic wire and supports the conductive fabric and the thin metallic wire.

8. The cardiac pacemaker according to claim 5 , wherein the conductor of the biological electrode contains conductive polymers.

9. The cardiac pacemaker according to claim 5 , wherein the conductive polymers of the biological electrode contain any of polythiophene-based, polyacetylene-based, polyaniline-based, or polypyrrole-based conductive polymers.

10. The cardiac pacemaker according to claim 5 , wherein the biological electrode further comprising a pedestal that is formed between the distal end and a base end of the thin metallic wire and supports the conductive fabric and the thin metallic wire.

11. The cardiac pacemaker according to claim 8 , wherein the biological electrode further comprising a pedestal that is formed between the distal end and a base end of the thin metallic wire and supports the conductive fabric and the thin metallic wire.

12. The cardiac pacemaker according to claim 9 , wherein the biological electrode further comprising a pedestal that is formed between the distal end and a base end of the thin metallic wire and supports the conductive fabric and the thin metallic wire.

13. A biological electrode comprising:

a conductive fabric formed of base fibers which are filled with a conductor or to which the conductor is adhered;

a thin metallic wire formed into shape of a helix around an axis and covered with the conductive fabric from a side of a distal end in an axis direction; and

a filling material with which a gap between the conductive fabric and the thin metallic wire is filled and configured to support the conductive fabric and the thin metallic wire, wherein the shape of the helix of the thin metallic wire has a convex shape protruding outwardly in the axis direction and the conductive fabric covering the distal end of the thin metallic wire has a convex shape protruding outwardly in the axis direction the conductive fabric is arranged to have a curved surface protruding outwardly, and the conductor is electrically connected with the thin metallic wire.

Assignments (2)
CHANGE OF NAME Recorded Oct 3, 2025
From: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
To: NTT, INC.
Reel/Frame 072996/0465 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 18, 2022
From: TSUKADA, SHINGO; TESHIMA, TETSUHIKO; NAKASHIMA, HIROSHI
To: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Reel/Frame 059626/0985 →
Continuity (1)
Related Publication 20220355103A1 · Nov 10, 2022
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