electrosurgical cartridge for use in a thin profile surgical cutting and stapling instrument

摘要

the present description refers to a surgical instrument that includes an end actuator configured to receive a cutting element slidably. the end actuator includes a first jaw and a second jaw which is movable with respect to the first jaw, a hot zone in a central portion of the end actuator, and cold zones in both side portions of the end actuator. the first and second claws define an elongated slit disposed between them, for slidingly receiving the cutting member inside the elongated slit to cut the fabric located between the first and the second claws. the first claw includes a first insulating layer and a second insulating layer in the hot zone, a first electrode layer in the first insulating layer, a second electrode layer in the second insulating layer and layers of heat sink in the cold zones. the heatsink layers are configured to cool the fabric in the cold zones to minimize lateral thermal spread.