Surgery – Means for introducing or removing material from body for... – With means for cutting – scarifying – or vibrating tissue
Patent
1994-01-06
1998-02-24
Rosenbaum, C. Fred
Surgery
Means for introducing or removing material from body for...
With means for cutting, scarifying, or vibrating tissue
A61B 1739
Patent
active
057207186
ABSTRACT:
A medical probe device comprising a catheter having a stylet guide housing with at least one stylet port in a side thereof and stylet guide means for directing a flexible stylet outward through at least one stylet port and through intervening tissue to targeted tissue. The stylet comprises an electrical central conductor which is enclosed within an insulating or dielectric sleeve surrounded by a conductive layer terminated by an antenna to selectively deliver microwave or radio frequency energy to target tissue. One embodiment includes the electrical conductor being enclosed within a non-conductive sleeve which itself is enclosed within a conductive sleeve in a coaxial cable arrangement to form a microwave transmission line terminated by an antenna. Another embodiment includes a resistive element near the distal end of the stylet which couples the center electrode to an outer conductor to generate joulian heat as electromagnetic energy is applied, such as an RF signal.
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Edwards Stuart D.
Lax Ronald G.
Lundquist Ingemar H.
Rosen Arye
Sharkey Hugh R.
Mendez Manuel
Rosenbaum C. Fred
Vidamed, Inc.
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