Dual-curvature phased array high-intensity focused ultrasound transducer for tumor therapy

摘要

A transducer for use with a high intensity focused ultrasound medical system has transducer elements that are made from a piezocomposite material bonded together in turn with an adhesive. The elements are deployed along a surface of a geometric structure with two curvatures. The structure is a truncated curved cylinder. The transducer also includes electrodes, each of which is arranged on a corresponding one of the transducer elements for exciting the transducer elements to emit ultrasonic waves in response to electrical signals applied to the electrodes to steer the waves to form a common focus zone in a desired heating area.

主权项

1. An apparatus comprising a dual-curvature transducer array for use with a high intensity focused ultrasound medical system, said dual-curvature transducer array comprising: a plurality of transducer elements that are made from piezocomposite material; said plurality of transducer elements bonded together with an adhesive and deployed along a surface of a geometric structure with two curvatures, said geometric structure comprising a truncated torus and a plurality of electrodes, each of which is arranged on a corresponding one of said transducer elements for exciting said transducer elements to emit ultrasonic waves in response to electrical signals applied to said electrodes to steer said waves to form a common focus zone in a desired heating area.