JPWO2021226353A5 - - Google Patents

Claims (25)

a generator configured to generate an electrical signal having an alternating current waveform at a frequency in the range of 50 kHz to 500 kHz;
a first conductive lead electrically coupled to the generator and configured to transmit the electrical signal;
a first conductive pad having a first electrode element directly connected to a first conductive gel element configured to contact the patient's skin;
a second conductive lead electrically coupled to the generator and configured to transmit the electrical signal;
a second conductive pad having a second electrode element directly connected to a second conductive gel element configured to contact the patient's skin. The system of claim 1, wherein the first electrode element includes an electrode layer electrically coupled to a conductive support layer, the conductive support layer being intermediate the electrode layer and the first conductive gel element. The system of claim 2, wherein the second electrode element includes an electrode layer electrically coupled to a conductive support layer, the conductive support layer being intermediate the electrode layer and the second conductive gel element. The system of claim 1, further comprising a blocking capacitor configured to block direct current in the electrical signal. The system of claim 4, wherein the blocking capacitor is a non-polarized capacitor. The system of claim 4, wherein the generator includes the blocking capacitor. The system of claim 4, wherein the first conductive pad, the second conductive pad, or both the first conductive pad and the second conductive pad include the blocking capacitor. The system of claim 4, wherein the blocking capacitor is a first blocking capacitor and further includes a second blocking capacitor configured to block direct current in the electrical signal. 9. The system of claim 8, wherein the first conductive pad, the second conductive pad, or both the first conductive pad and the second conductive pad include the second blocking capacitor. The system of claim 1, wherein the first conductive gel element further comprises a first hydrogel layer, a support layer, and a second hydrogel layer, the first hydrogel layer being a first conductive hydrogel, and the second hydrogel layer being a second conductive hydrogel. The system of claim 10 , wherein the first conductive hydrogel and the second conductive hydrogel are not the same hydrogel. The system of claim 10 , wherein the support layer is electrically conductive. The system of claim 1, wherein the second conductive gel element further comprises a first hydrogel layer, a support layer, and a second hydrogel layer, the first hydrogel layer being a first conductive hydrogel, and the second hydrogel layer being a second conductive hydrogel. The system of claim 13 , wherein the first conductive hydrogel and the second conductive hydrogel are not the same hydrogel. The system of claim 13 , wherein the support layer is electrically conductive. The system of claim 1, further comprising one or more temperature sensors configured to measure a temperature of the first conductive pad. 17. The system of claim 16 , further comprising a control box configured to monitor the one or more temperature sensors and turn off the generator if the temperature exceeds a comfort threshold. A top coat layer;
an electrode element connected to the topcoat layer and configured to receive an electrical signal from a generator that generates the electrical signal as a tumor treating electric field;
a conductive gel element connected directly to the electrode element to receive electrical current from the electrode element and configured to contact the patient's skin. 20. The conductive pad of claim 18, further comprising a conductive lead configured to transmit the electrical signal, the conductive lead configured to be electrically coupled to the generator, the conductive lead electrically coupled to the electrode element. 20. The conductive pad of claim 18, wherein the conductive gel element further comprises a first conductive gel layer, a support layer, and a second conductive gel layer, the first conductive gel layer being a first conductive gel and the second conductive gel layer being a second conductive gel. The conductive pad of claim 20 , wherein the first conductive gel and the second conductive gel are not the same conductive gel. The conductive pad of claim 20 , wherein the support layer is conductive. The conductive pad of claim 20 , further comprising a blocking capacitor configured to block direct current in the electrical signal. The conductive pad of claim 23 , wherein the blocking capacitor is a non-polarized capacitor. 23. The conductive pad of claim 22 , wherein the topcoat layer, the electrode element, and the conductive gel element are made of a flexible material and are configured to conform to a patient's body.