STEP-DOWN COAXIAL MICROWAVE ABLATION APPLICATORS AND METHODS FOR MANUFACTURING SAME
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Accused Products
Abstract
Microwave ablation applicators and methods for manufacturing the microwave ablation applicators are disclosed. A microwave ablation applicator includes a feed-line segment, a step-down segment, and a radiator base segment. The feed-line segment includes a first inner conductor, a first dielectric disposed on the first inner conductor, and a first outer conductor disposed on the first dielectric. The step-down segment includes a second inner conductor, a second dielectric disposed on the second inner conductor, and a second outer conductor disposed on the second dielectric. The radiator base segment includes a third inner conductor disposed on the third inner conductor, a third outer conductor disposed on the proximal end of the third dielectric so as to form a feed gap at a distal end of the radiator base segment, a balun dielectric disposed on the third outer conductor, and a balun outer conductor disposed on the balun dielectric.
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37 Claims
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1-17. -17. (canceled)
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18. A method of manufacturing a microwave ablation applicator, the method comprising:
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removing a first dielectric and a first outer conductor from a distal portion of a coaxial cable to expose an inner conductor of the coaxial cable; disposing a second dielectric on a first portion of the inner conductor; disposing a second outer conductor on the second dielectric; disposing a third dielectric on a second portion of the inner conductor; disposing a third outer conductor on a portion of the third dielectric; disposing a balun dielectric on a portion of the third outer conductor; and disposing a balun conductor on a portion of the balun dielectric. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A method for manufacturing a microwave ablation applicator, the method comprising:
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removing a first dielectric and a first outer conductor from a distal portion of a coaxial cable to expose an inner conductor of the coaxial cable; forming a step-down segment by disposing a second dielectric on a first portion of the inner conductor, a diameter of the combination of the inner conductor and the second dielectric being less than a diameter of the combination of the inner conductor and the first dielectric, and disposing a second outer conductor on the second dielectric; and forming a radiator base segment by disposing a third dielectric on a second portion of the inner conductor, disposing a third outer conductor on a portion of the third dielectric, disposing a balun dielectric on a portion of the third outer conductor, and disposing a balun conductor on a portion of the balun dielectric. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37)
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Specification