Arrays for longitudinal delivery of TTFields to a body
First Claim
1. A method of treating a target region in a subject'"'"'s body with tumor treating fields, the target region being located in a portion of the subject'"'"'s body that has a longitudinal axis, the method comprising:
- affixing a first plurality of electrodes to the subject'"'"'s body so as to surround a first part of the subject'"'"'s body at a position that is longitudinally prior to the target region;
affixing a second plurality of electrodes to the subject'"'"'s body so as to surround a second part of the subject'"'"'s body at a position that is longitudinally subsequent to the target region; and
applying a first AC voltage with a frequency of 100-500 kHz between all the electrodes in the first plurality of electrodes and all the electrodes in the second plurality of electrodes so as to impose a first AC electric field with field lines that run through the target region longitudinally, wherein the first AC electric field has a field strength of at least 1 V/cm in at least a portion of the target region.
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Accused Products
Abstract
Tumors in portions of a subject'"'"'s body that have a longitudinal axis (e.g., the torso, head, and arm) can be treated with TTFields by affixing first and second sets of electrodes at respective positions that are longitudinally prior to and subsequent to a target region. An AC voltage with a frequency of 100-500 kHz is applied between these sets of electrodes. This imposes an AC electric field with field lines that run through the target region longitudinally. The field strength is at least 1 V/cm in at least a portion of the target region. In some embodiments, this approach is combined with the application of AC electric fields through the target region in a lateral direction (e.g., front to back and/or side to side) in order to apply AC electric fields with different orientations to the target region.
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Citations
13 Claims
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1. A method of treating a target region in a subject'"'"'s body with tumor treating fields, the target region being located in a portion of the subject'"'"'s body that has a longitudinal axis, the method comprising:
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affixing a first plurality of electrodes to the subject'"'"'s body so as to surround a first part of the subject'"'"'s body at a position that is longitudinally prior to the target region; affixing a second plurality of electrodes to the subject'"'"'s body so as to surround a second part of the subject'"'"'s body at a position that is longitudinally subsequent to the target region; and applying a first AC voltage with a frequency of 100-500 kHz between all the electrodes in the first plurality of electrodes and all the electrodes in the second plurality of electrodes so as to impose a first AC electric field with field lines that run through the target region longitudinally, wherein the first AC electric field has a field strength of at least 1 V/cm in at least a portion of the target region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification