Radiation applicator and method of radiating tissue
First Claim
1. A dipole microwave applicator for emitting microwave radiation into tissue, the assembly comprising:
- an outer conductor having an end;
an inner conductor disposed within the outer conductor, and including a section that extends outwardly beyond the end of the outer conductor;
a ferrule disposed at the end of the outer conductor, and having a sleeve portion that surrounds a portion of the outwardly extending section of the inner conductor; and
a dielectric tip surrounding the sleeve portion of the ferrule and the outwardly extending section of the inner conductor, whereby the sleeve portion of the ferrule and at least a portion of the outwardly 1l extending section of the inner conductor operate as corresponding arms of the dipole microwave applicator.
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Accused Products
Abstract
A dipole microwave applicator emits microwave radiation into tissue to be treated. The applicator is formed from a thin coax cable having an inner conductor surrounded by an insulator, which is surrounded by an outer conductor. A portion of the inner conductor extends beyond the insulator and the outer conductor. A ferrule at the end of the outer conductor has a step and a sleeve that surrounds a portion of the extended inner conductor. A tuning washer is attached to the end of the extended inner conductor. A dielectric tip encloses the tuning washer, the extended inner conductor, and the sleeve of the ferrule. The sleeve of the ferrule and the extended inner conductor operate as the two arms of the dipole microwave antenna. The tuning washer faces the step in the ferrule, and is sized and shaped to cooperate with the step in balancing and tuning the applicator.
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Citations
15 Claims
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1. A dipole microwave applicator for emitting microwave radiation into tissue, the assembly comprising:
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an outer conductor having an end;
an inner conductor disposed within the outer conductor, and including a section that extends outwardly beyond the end of the outer conductor;
a ferrule disposed at the end of the outer conductor, and having a sleeve portion that surrounds a portion of the outwardly extending section of the inner conductor; and
a dielectric tip surrounding the sleeve portion of the ferrule and the outwardly extending section of the inner conductor, whereby the sleeve portion of the ferrule and at least a portion of the outwardly 1l extending section of the inner conductor operate as corresponding arms of the dipole microwave applicator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification