IP Library Granted Patent US 12,478,779
Granted Patent B2
US 12,478,779 · App. 18/192,552 · Granted Nov 25, 2025

Electrode array having a semi-liquid conductive gel

Inventor: Richard Deslauriers (Woodbury, CT)
Assignee: Novocure GmbH
A61N1/0496A61N1/40
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Quick Facts
Patent No.
US 12,478,779
App. No.
18/192,552
Granted
Nov 25, 2025
Kind
B2
Abstract

An assembly, a system, and a method of use for an electrode array having a semi-liquid conductive gel are herein disclosed. The assembly comprises at least one electrode; and a semi-liquid hydrogel having a viscosity of between about 8440 and 20000 milli pascals per second, wherein the semi-liquid hydrogel is disposed between a surface of the at least one electrode and a patient's skin.

Claims (37)

1 . An assembly, comprising:

at least one electrode; and

a semi-liquid hydrogel having a viscosity of between 8440 and 20000 milli pascals per second, wherein the semi-liquid hydrogel is configured to be disposed between a surface of the at least one electrode and a patient's skin.

2 . The assembly of claim 1 , further comprising a liner disposed on the semi-liquid hydrogel and covering at least a portion of the semi-liquid hydrogel.

3 . The assembly of claim 1 , wherein the semi-liquid hydrogel has a skin adhesion rate within a range of 300 g/inch to 600 g/inch.

4 . The assembly of claim 1 , wherein the assembly further comprises a polymerized hydrogel having a first surface and a second surface, the polymerized hydrogel being disposed between the surface of the at least one electrode and the semi-liquid hydrogel.

5 . The assembly of claim 4 , wherein the polymerized hydrogel is devoid of perforations.

6 . The assembly of claim 4 , wherein the polymerized hydrogel comprises at least one modification that extends inwardly or outwardly from the second surface.

7 . The assembly of claim 6 , wherein the at least one modification is one or more of:

a perforation extending inwardly from the second surface to the first surface thereof and through the polymerized hydrogel;

one or more of a first recess, a first channel, or a first well extending inwardly from the second surface of the polymerized hydrogel;

a plurality of protrusions extending outwardly from the second surface thereof, and wherein two or more protrusions form one or more of a second recess, a second channel, or a second well therebetween; and

combinations thereof.

8 . The assembly of claim 7 , wherein at least a portion of the semi-liquid hydrogel is disposed in or associated with the at least one modification.

9 . The assembly of claim 8 , wherein the polymerized hydrogel comprises a plurality of modifications that extend inwardly or outwardly from the second surface thereof, and wherein the plurality of modifications has the portion of the semi-liquid hydrogel disposed therein or associated therewith.

10 . The assembly of claim 8 , wherein the polymerized hydrogel comprises a plurality of modifications that extend inwardly or outwardly from the second surface thereof, and wherein at least a first portion of the plurality of modifications have the portion of the semi-liquid hydrogel disposed therein or associated therewith, while at least a second portion of the plurality of modifications are substantially devoid of the semi-liquid hydrogel.

11 . The assembly of claim 1 , wherein the semi-liquid hydrogel has a pH of 6.8.

12 . A method, comprising:

applying two or more transducer arrays to a skin of a patient, each transducer array comprising at least one electrode; a semi-liquid hydrogel having a viscosity of between 8440 and 20000 milli pascals per second, wherein the semi-liquid hydrogel is disposed between a surface of the at least one electrode and a patient's skin; and

activating an electric field generator to supply an electrical signal to the two or more transducer arrays thereby generating an electric field for a period of time.

13 . The method of claim 12 , wherein activating the electric field generator further comprises activating the electric field generator to supply the electrical signal having an alternating current waveform at frequencies in a range of from 50 kHz to 1 MHz.

14 . A system, comprising:

an electric field generator operable to generate an electrical signal having an alternating current waveform at a frequency in a range from 50 kHz to 1 MHz;

a first conductive lead electrically coupled to the electric field generator, the first conductive lead configured to carry the electrical signal;

a first transducer array having a first electrode element in electrical communication with a first conductive gel element; the first conductive gel element comprising at least a semi-liquid hydrogel, the semi-liquid hydrogel having a viscosity of between 8440 and 20000 milli pascals per second, wherein the semi-liquid hydrogel is configured to be disposed between a surface of the first electrode element and a patient's skin;

a second conductive lead electrically coupled to the electric field generator, the second conductive lead configured to carry the electrical signal; and

a second transducer array having a second electrode element in electrical communication with a second conductive gel element, and the second conductive gel element being configured to be in contact with a patient's skin.

15 . The system of claim 14 , wherein the semi-liquid hydrogel is a first semi-liquid hydrogel and wherein the second conductive gel element comprises a second semi-liquid hydrogel having the viscosity of between 8440 and 20000 milli pascals per second, wherein the second semi-liquid hydrogel is configured to be disposed between the second electrode element and the patient's skin.

16 . The system of claim 14 , wherein the system further comprises a polymerized hydrogel having a first surface and a second surface, the polymerized hydrogel being further disposed between the surface of the first electrode element and the semi-liquid hydrogel.

17 . The system of claim 16 , wherein the polymerized hydrogel is devoid of perforations.

18 . The system of claim 16 , wherein the polymerized hydrogel comprises at least one modification that extends inwardly or outwardly from the second surface thereof.

19 . The system of claim 18 , wherein the at least one modification is one or more of:

a perforation extending inwardly from the second surface to the first surface thereof and through the polymerized hydrogel;

one or more of a first recess, a first channel, or a first well extending inwardly from the second surface of the polymerized hydrogel;

a plurality of protrusions extending outwardly from the second surface thereof, and wherein two or more protrusions form one or more of a second recess, a second channel, or a second well therebetween; and

combinations thereof.

20 . The system of claim 19 , wherein at least a portion of the semi-liquid hydrogel is disposed in or associated with the at least one modification.

Assignments (2)
PATENT SECURITY AGREEMENT Recorded May 4, 2024
From: NOVOCURE GMBH (SWITZERLAND)
To: BIOPHARMA CREDIT PLC
Reel/Frame 067315/0399 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 29, 2023
From: DESLAURIERS, RICHARD
To: NOVOCURE GMBH
Reel/Frame 063157/0589 →