专利名称：Electrosurgical instrument and method of
use
发明人：Truckai, Csaba,Shadduck, John H.,Baker,
James A.
申请号：EP10181072.9申请日：20030122公开号：EP2298153A1公开日：20110323
专利附图：
摘要：An electrosurgical medical device and method for creating thermal welds inengaged tissue. In one embodiment, at least one jaw of the instrument defines a tissue
engagement plane carrying a conductive-resistive matrix of a conductively-dopednonconductive elastomer. The engagement surface portions thus can be described as apositive temperature coefficient material that has a unique selected decreased electricalconductance at each selected increased temperature thereof over a targeted treatmentrange. The conductive-resistive matrix can be engineered to bracket a targeted thermaltreatment range, for example about 60°C, to 80°C., at which tissue welding can beaccomplished.; In one mode of operation, the engagement plane will automaticallymodulate and spatially localize ohmic heating within the engaged tissue from Rf energyapplication-across micron-scale portions of the engagement surface. In another mode ofoperation, a conductive-resistive matrix can induce a \"wave\" of Rf energy density to sweepacross the tissue to thereby weld tissue.
申请人：Sciogen LLC
地址：2329 B. Terminal Mountain View, CA 94043 US
国籍：US
代理机构：Tunstall, Christopher Stephen
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