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.

Abstract: A transducer array for delivering tumor treating fields (TTFields) to a subject's body, comprising: an electrode array comprising a plurality of electrode elements, a front face, and a back face, the electrode array configured to deliver TTFields to the subject's body; at least one void space capable of enclosing an areal footprint equivalent to at least a portion of an areal footprint of at least one electrode element position, and superimposable on at least a portion of at least one electrode element position by rotation of the electrode array; a first conductive adhesive layer located on the front face of the electrode array; a second conductive adhesive layer comprising a front face for facing the subject's body and a back face facing the front face of the first conductive adhesive layer; wherein the first conductive adhesive layer and the second conductive adhesive layer comprise different adhesives.

Abstract: A transducer apparatus for delivering tumor treating fields to a subject's body, the transducer apparatus comprising an array of one or more electrode elements, the array configured to be positioned over the subject's body with a front face of the array facing the subject's body, an anisotropic material layer electrically coupled to the array 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, and a flexible layer coupled to the front face of the anisotropic material layer and configured to contact the subject's body, wherein the flexible layer comprises a flexible material and, optionally, an adhesive.

Abstract: An electrode assembly for delivering tumor treating fields to a subject's body, the electrode assembly apparatus including a layer of conductive anisotropic material, an electrode element and a cover. The electrode assembly is provided in different shapes, such as an asymmetric oval, including ovaloid, ovoid and ovate shapes or stretched asymmetric oval, ovaloid, ovoid, or ovate shapes, as well as a pear shape and a rounded arrowhead shape. These shapes can be provided in different sizes to allow the electrode assembly to be attached or secured to a subject or patient's body, especially when the site may be nonplanar, or otherwise contoured, resulting in a more comfortable experience, or even a more favorable clinical outcome.

Abstract: Alternating electric fields (e.g., Tumor Treating Fields or TTFields) can be applied to a subject's body using an apparatus (e.g., a transducer array) that includes at least one metal pad disposed on a substrate and a plurality of temperature sensors (e.g., thermistors). The temperature sensors are disposed on the substrate at positions that are outside a first convex hull that encloses the at least one metal pad (e.g., at the edges of the apparatus). A layer of graphite is disposed in front of the metal pads and the temperature sensors and is in thermal contact with both the metal pads and the temperature sensors. Positioning the thermistors outside the first convex hull (e.g., at the edges of the apparatus) can help prevent overheating in situations where the edges of the apparatus tend to be the hottest portions of the apparatus.

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 positioned in existing electrode positions arranged around a centroid of the array; an anisotropic material layer electrically coupled to the array of electrodes and located on a front side of the front face of the array; and at least one void space in the array of electrodes capable of enclosing an areal footprint equivalent to at least a portion of an areal footprint of at least one existing electrode position, and superimposable on at least a portion of at least one existing electrode position by rotation of the array around the centroid.