Surgery – Instruments – Electrical application
Reexamination Certificate
2006-12-12
2006-12-12
Phan, Tho (Department: 2821)
Surgery
Instruments
Electrical application
C606S041000, C343S790000
Reexamination Certificate
active
07147632
ABSTRACT:
Various high-strength microwave antenna assemblies are described herein. The microwave antenna has a radiating portion connected by a feedline to a power generating source, e.g., a generator. The antenna is a dipole antenna with the distal end of the radiating portion being tapered and terminating at a tip to allow for direct insertion into tissue. Antenna rigidity comes from placing distal and proximal radiating portions in a pre-stressed state, assembling them via threaded or overlapping joints, or fixedly attaching an inner conductor to the distal portion. The inner conductor is affixed to the distal portion by, e.g., welding, brazing, soldering, or by adhesives. A junction member made from a hard dielectric material, e.g., ceramic, can be placed between the two portions and can have uniform or non-uniform shapes to accommodate varying antenna designs. Electrical chokes may also be used to contain returning currents to the distal end of the antenna.
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Glassman Jonathan
Kim Steven
Lee Anthony
Prakash Mani
Rossetto Francesca
Phan Tho
Vivant Medical Inc.
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