Importance

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Abstract

A hyperthermia apparatus having a three-dimensional target positioning capability is disclosed. The apparatus includes a signal modifier, having electromagnetic power splitting, phase adjusting, and power gain capabilities, connected to a plurality of power connector assemblies having individual antenna power and power phase adjusting capability. The power connector assemblies connect power at preselected phases to a plurality of antenna groups forming an applicator. Each antenna group includes three antennae preferrably of the dipole type stacked end to end on a tube of dielectric material. The phase of the power applied to the three antennae of the antenna groups is selected to provide a target heating spot positionable or adjustable in size in a body portion in a direction along the long axis of the body portion and within the cross-section perpendicular to the long axis. This adjustable size and positioning of the target along the long axis provides an additional dimension to the capability of moving the target perpendicular to the long axis in either direction from the center as provided in known applicators.

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First Claim