Electrode wire for applying electrical stimulation to body organs, and electrode system using same

Patent metadata

Field	Value
Publication number	US-12246173-B2
Application number	US-202117921961-A
Country	US
Kind code	B2
Filing date	Apr 1, 2021
Priority date	Apr 28, 2020
Publication date	Mar 11, 2025
Grant date	Mar 11, 2025

Abstract

The lead implanted in a body to apply electrical stimulation to body organs may include: an electrode wire having one end provided as an insertion portion to be inserted into a body and the other end provided as an interface portion for connection with an external device to transmit a stimulation signal: a plurality of first electrodes in the insertion portion; a plurality of second electrodes on the interface portion; and a plurality of signal lines interconnecting the first electrodes and the second electrodes, wherein the insertion portion of the electrode wire includes a plurality of support portions on which the first electrodes are respectively disposed and a plurality of stretchable portions between the support portions and expandable and contractible, and further includes an operation unit for pushing or pulling each support portion in a longitudinal direction of the electrode wire to adjust a position of the support portion.

First claim

The invention claimed is:

1. A lead implanted in a body to apply electrical stimulation to body organs, the lead comprising:
an electrode wire having one end provided as an insertion portion to be inserted into a body and another end provided as an interface portion for connection with an external device to transmit a stimulation signal to body organs into which the lead is inserted;
a plurality of first electrodes in the insertion portion to transmit electrical stimulation to body organs;
a plurality of second electrodes on the interface portion to receive electrical stimulation applied from outside; and
a plurality of signal lines configured to interconnect the first electrodes and the second electrodes, respectively, and transmit the electrical stimulation received by the second electrodes to the first electrodes,
wherein the insertion portion of the electrode wire comprises a plurality of support portions on which the first electrodes are respectively disposed and a plurality of stretchable portions between the support portions and expandable and contractible,
and further comprises an operation unit for pushing or pulling each support portion in a longitudinal direction of the electrode wire,
wherein, by pushing or pulling each support portion, a stretchable portion between the support portions is stretched and contracted to adjust a position of the support portion.

2. The lead of claim 1 , wherein one end of a plurality of operation wires is coupled to each support portion as an operation unit and the other end of the operation wires extends to an outside of the lead, and by pushing or pulling the other end of the operation wires, a position of each support portion with respect to the electrode wire is adjusted, or an angle of arrangement of the support portion with respect to an extension direction of the electrode wire is adjusted.

3. The lead of claim 1 , wherein a plurality of moving plates each movable in the longitudinal direction of the electrode wire are disposed on the interface portion of the electrode wire, and one end of a plurality of operation wires is coupled to each support portion as an operation unit and another end of the operation wires is coupled to each moving plate, so that each operation wire pushes or pulls each support portion by movement of each moving plate.

4. A lead system implanted in a body to apply electrical stimulation to body organs, the lead system comprising:
a main processor connected to an external device for communication and control;
one or more leads implanted in a body to apply electrical stimulation to body organs;
an electrode clamp for electrical connection with a lead; and
a controller for controlling a position of transmitting electrical stimulation in the lead,
wherein each lead comprises:
an electrode wire having one end provided as an insertion portion to be inserted into a body and another end provided as an interface portion for connection with an external device to transmit a stimulation signal to body organs into which the lead is inserted;
a plurality of first electrodes in the insertion portion to transmit electrical stimulation to body organs;
a plurality of second electrodes on the interface portion to receive electrical stimulation applied from outside; and
a plurality of signal lines configured to interconnect the first electrodes and the second electrodes, respectively, and transmit the electrical stimulation received by the second electrodes to the first electrodes,
wherein the insertion portion of the electrode wire comprises a plurality of support portions on which the first electrodes are respectively disposed and a plurality of stretchable portions between the support portions and expandable and contractible,
and further comprises an operation unit for pushing or pulling each support portion in a longitudinal direction of the electrode wire,
wherein, by pushing or pulling each support portion, a stretchable portion between the support portions is stretched and contracted to adjust a position of the support portion.

5. The lead system of claim 4 , wherein a plurality of operation wires is coupled as an operation unit to each support portion of the lead, and a position of each support portion with respect to the electrode wire is adjusted by pushing or pulling the operation wires, or an angle of arrangement of the support portion with respect to an extension direction of the electrode wire is adjusted,
wherein the controller comprises a motor that pushes or pulls each operation wire of the lead.

6. The lead system of claim 4 , wherein a plurality of moving plates each movable in the longitudinal direction of the electrode wire are disposed on the interface portion of the electrode wire, and one end of a plurality of operation wires is coupled to each support portion as an operation unit and another end of the operation wires is coupled to each moving plate, so that each operation wire pushes or pulls each support portion by movement of each moving plate,
wherein the controller is provided with an actuator coupled with each moving plate of the lead to move the moving plate.

Assignees

• Samsung Life Public Welfare Foundation

Inventors

• Park Eun Kyoung
• Kim Tae Kyung
• Kim Tae Woo
• Lee Kyu Sung

Classifications

• A61N1/37514

  Brain implants · CPC title

• A61N1/36128

  Control systems · CPC title

• A61N1/36125

  Details of circuitry or electric components · CPC title

• A61N1/36096

  Mood disorders, e.g. depression, anxiety or panic disorder · CPC title

• A61N1/36067

  Movement disorders, e.g. tremor or Parkinson disease (stimulating motor muscle A61N1/36003) · CPC title