摘要 |
<p>A cutting device for tissue separation includes a cutting edge using electrical energy such as RF power that is coupled to, but thermally insulated from, a catheter in an elongated medical device. Thermal insulation between a ring-type cutting device and the catheter is provided by a gap, slots within the ring, and/or slanted slots within the ring. In one embodiment, tissue separation occurs by rotation of a ring-type electrically-powered cutting edge having internal cross-bar elements. In an alternate embodiment, tissue separation occurs by longitudinal movement of an offset electrically-powered cutting edge that is pressed against tissue by an inflatable balloon. In a further alternate embodiment, a cutting edge is coupled longitudinally to a catheter, is provided electrical energy by wired connection to the braided catheter, but is thermally isolated from the catheter.</p> |
申请人 |
SALIENT SURGICAL TECHNOLOGIES, INC.;BLOOM, ELIOT, F.;LANE, DENISE C.;PODANY, VACLAV, O.;CONLEY, BRIAN, M. |
发明人 |
BLOOM, ELIOT, F.;LANE, DENISE C.;PODANY, VACLAV, O.;CONLEY, BRIAN, M. |