Methods of using high intensity focused ultrasound to form an ablated tissue area containing a plurality of lesions
First Claim
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1. A trans-esophageal ablation device for ablating tissue within a patient, comprising:
- a flexible, elongate portion adapted to be guided within said patient;
a source of energy;
a two-dimensional array of transducer elements operatively coupled to said elongate portion and said source of energy, said two-dimensional array of transducer elements configured to deliver high intensity focused ultrasound (HIFU) energy to a focus zone within said patient and which may also deliver HIFU energy to a grating lobe;
wherein each of said transducer elements are selectively actuatable to allow for electronic steering of said HIFU energy; and
wherein said transducer elements have a taper wherein said transducer elements positioned more centrally in said two-dimensional array are larger than said transducer elements positioned more peripherally in said two-dimensional array.
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Abstract
A device and method for ablating tissue is disclosed comprising the steps of acquiring an anatomical image of a patient, correlating the image to the patient, guiding an ablating member within the patient while tracking the position of the ablating member in the patient, positioning the ablating member in a desired position to ablate tissue, emitting ablating energy from the ablating member to form an ablated tissue area and removing the ablating member from the patient.
417 Citations
18 Claims
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1. A trans-esophageal ablation device for ablating tissue within a patient, comprising:
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a flexible, elongate portion adapted to be guided within said patient; a source of energy; a two-dimensional array of transducer elements operatively coupled to said elongate portion and said source of energy, said two-dimensional array of transducer elements configured to deliver high intensity focused ultrasound (HIFU) energy to a focus zone within said patient and which may also deliver HIFU energy to a grating lobe; wherein each of said transducer elements are selectively actuatable to allow for electronic steering of said HIFU energy; and wherein said transducer elements have a taper wherein said transducer elements positioned more centrally in said two-dimensional array are larger than said transducer elements positioned more peripherally in said two-dimensional array. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A two-dimensional transducer array for trans-esophageal ablation of tissue within a patient, comprising:
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a plurality of transducer elements positioned in an array having a face, said plurality of transducer elements being configured to deliver high intensity focused ultrasound (HIFU) energy to a focus zone a predetermined distance from said face and which may also deliver HIFU energy to a grating lobe; wherein each of said plurality of transducer elements are selectively actuatable to allow for electronic steering of said HIFU energy; and wherein said plurality of transducer elements have a taper wherein individual ones of said plurality of transducer elements positioned more centrally in said array are larger than individual ones of said plurality of transducer elements positioned more peripherally in said array. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification