发明名称 |
Electrosurgical instrument and method of use |
摘要 |
An electrosurgical medical device and method for creating thermal welds in engaged tissue. In one embodiment, at least one jaw of the instrument defines a tissue engagement plane carrying a conductive-resistive matrix of a conductively-doped non-conductive elastomer. The engagement surface portions thus can be described as a positive temperature coefficient material that has a unique selected decreased electrical conductance at each selected increased temperature thereof over a targeted treatment range. The conductive-resistive matrix can be engineered to bracket a targeted thermal treatment range, for example about 60° C. to 80° C., at which tissue welding can be accomplished. In one mode of operation, the engagement plane will automatically modulate and spatially localize ohmic heating within the engaged tissue from Rf energy application-across micron-scale portions of the engagement surface.
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申请公布号 |
US2003078578(A1) |
申请公布日期 |
2003.04.24 |
申请号 |
US20020198854 |
申请日期 |
2002.07.19 |
申请人 |
TRUCKAI CSABA;SHADDUCK JOHN H. |
发明人 |
TRUCKAI CSABA;SHADDUCK JOHN H. |
分类号 |
A61B18/14;(IPC1-7):A61B18/18 |
主分类号 |
A61B18/14 |
代理机构 |
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