Abstract: A transducer apparatus for delivering tumor treating fields to a subject's body, the transducer apparatus including: an array of electrode elements, the array configured to be positioned over the subject's body with a face of the array facing the subject's body; wherein, when viewed from a direction perpendicular to the face of the array, an outer perimeter of the array substantially tracing the electrode elements has a shape including: at least one convex edge portion protruding away from a centroid of the array; and at least one concave edge portion recessed toward the centroid of the array.

Abstract: A transducer apparatus for delivering tumor treating fields to a subject's body, the transducer apparatus including: a plurality of electrode elements; wherein the plurality of electrode elements comprises a first electrode element and a second electrode element, wherein the first electrode element and the second electrode element are substantially located in a plane of the transducer apparatus; and when viewed from a direction perpendicular to the plane, the first electrode element and the second electrode element have edges located adjacent each other without any other electrodes between them, wherein the edges of the first electrode element and the second electrode element extend parallel to each other along their length.

Abstract: A transducer apparatus for delivering tumor treating fields to a subject's body, the transducer apparatus including: an array of electrodes, the array configured to be positioned over the subject's body with a face of the array facing the subject's body, the array including electrode elements positioned in existing electrode positions arranged around a centroid of the array; and at least one void space in the array capable of enclosing an areal footprint equivalent to at least 40% of an areal footprint of at least one existing electrode position, and superimposable on at least 40% of at least one existing electrode position by rotation of the array around the centroid.

Abstract: Electrode assemblies for applying Tumor Treating Fields (TTFields) to a subject's body can employ a sheet of graphite to spread out the heat and electrical current over the surface of the electrode assembly. But because graphite does not stretch, normal movements of the subject's body in certain anatomical locations can cause the electrode assemblies to peel away from the subject's body. The electrode assemblies described herein are shaped and configured in ways that reduce this tendency to peel away from the subject's body. This can be accomplished by configuring the sheet of graphite so that it has a main section and two protruding sections that extend from the main section into adjacent quadrants of a Cartesian coordinate system, with a gap disposed between the two protruding sections.

Abstract: Tumor Treating Fields (TTFields) therapy is a proven approach for treating tumors using alternating electric fields. The TTFields are induced by electrode assemblies positioned on the subject's skin. When the electrode assemblies are implemented using flex circuits, the place where the cable terminates on the flex circuit is susceptible to mechanical failure. By incorporating a flex circuit that is bent back on itself so that one region of the PCB is positioned behind another region of the PCB, the embodiments described herein absorb mechanical strain that is induced by pulling upon the cables before those strains can reach the flex circuit. And this advantageously reduces the incidence of mechanical failures.

Abstract: A transducer apparatus for delivering tumor treating fields to a subject's body, the transducer apparatus including: a plurality of electrode elements; wherein the plurality of electrode elements comprises a first electrode element and a second electrode element, wherein the first electrode element and the second electrode element are substantially located in a plane of the transducer apparatus; and when viewed from a direction perpendicular to the plane, the first electrode element and the second electrode element have edges located adjacent each other without any other electrodes between them, wherein the edges of the first electrode element and the second electrode element extend parallel to each other along their length.

Abstract: A transducer apparatus for delivering tumor treating fields to a subject's body, the transducer apparatus including: an array of electrodes, the array configured to be positioned over the subject's body with a face of the array facing the subject's body, the array including electrode elements positioned in existing electrode positions arranged around a centroid of the array; and at least one void space in the array capable of enclosing an areal footprint equivalent to at least 40% of an areal footprint of at least one existing electrode position, and superimposable on at least 40% of at least one existing electrode position by rotation of the array around the centroid.

Abstract: A transducer apparatus for delivering tumor treating fields to a subject's body comprises: a plurality of electrode subassemblies configured to be positioned over the subject's body with a front face facing the subject's body and a back face opposite the front face, each electrode subassembly comprising at least one electrode element; a plurality of sections of an anisotropic material layer, each electrically coupled to at least one electrode element, each section of anisotropic material layer comprising a front face and a back face opposite the front face, and wherein when viewed from a direction perpendicular to the front face of the electrode subassemblies, each respective section of anisotropic material layer is spaced apart and is not touching other sections of the plurality of sections of anisotropic material layer; and a flexible electrical connector electrically connecting the plurality of electrode subassemblies.

Abstract: A transducer apparatus for delivering tumor treating fields to a subject's body, the transducer apparatus including: first and second electrode subassemblies, each subassembly configured to be positioned over the subject's body with a front face of the subassembly facing the subject's body, each subassembly having a back face opposite the front face, each subassembly comprising: at least one electrode element; an anisotropic material layer electrically coupled to the at least one electrode element, the anisotropic material layer comprising a front face facing the subject's body and a back face opposite the front face, the back face facing the at least one first electrode element; and a flexible electrical connector electrically connecting the first and second electrode subassemblies, wherein the first and second electrode subassemblies are separated by the flexible electrical connector.

Abstract: A transducer apparatus for delivering tumor treating fields to a subject's body is disclosed. The transducer apparatus can include an array of electrode elements arranged around a centroid and each electrode element equidistant or approximately equidistant from the centroid. The transducer apparatus can further include a PCB or flex circuit including at least one electrical connector portion. Each respective electrical connector portion of the at least one electrical connector portion can extend between a corresponding pair of adjacent electrode elements of the array of electrode elements. Each electrode element of the array of electrode elements includes a portion most proximal to the centroid of the array, and each electrical connector portion is spaced radially outwardly of the portions of the corresponding pair of adjacent electrode elements most proximal to the centroid of the array.

Abstract: A transducer apparatus for delivering tumor treating fields includes: an array of electrode elements, the array configured to be positioned over a subject's body with a front face facing the subject's body; electrical connections connecting the electrode elements and having a front face facing the subject's body and a back face; and an anisotropic material layer electrically coupled to the array of electrode elements and located on a front side of the front face of the array, the anisotropic material layer comprising a front face and a back face, the back face facing the array of electrode elements, wherein, when viewed in a direction perpendicular to and toward the back face of the anisotropic material layer, the electrode elements have convex shapes with respect to a perimeter of the anisotropic material layer and the electrical connections have concave shapes with respect to the perimeter of the anisotropic material layer.

Abstract: A transducer apparatus for delivering tumor treating fields to a subject's body, the transducer apparatus including: an array of electrodes, the array configured to be positioned over the subject's body with a front face of the array facing the subject's body, the array comprising electrode elements; an anisotropic material layer electrically coupled to the array of electrodes and located on a front side of the front face of the array, the anisotropic material layer comprising a front face and a back face, the back face facing the array of electrodes, the anisotropic material layer further including a hole passing through the front face and the back face of the anisotropic material layer; and a foam layer coupled to the front face of the anisotropic material layer and covering the hole on the front face of the anisotropic material layer.