| 摘要 |
An electrosurgical system includes an electrosurgical generator (32) providi ng power through an electrode (76), and a laser (25) providing laser energy through an optical fiber. The electrode optical fiber and a source of environmental gas can all be included in a handpiece (36), catheter or other delivery device. In operation, the environmental gas can be released into th e vicinity of an operative site and the laser activated to energize atoms alon g a pathway. Electrosurgical power can then be applied to ionize the items of the atoms of the pathway and create a path of least resistance for an electrosurgical arc. A reduction in the laser power required can be achieved by matching the photon frequency of the lawer with the excitation frequency of the environmental gas. In a laparoscopic procedure, the insufflation gas may be used as the environmental gas.
|
