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ENDOSCOPIC VESSEL SEALER AND DIVIDER HAVING A FLEXIBLE ARTICULATING SHAFT
专利权人:
COVIDIEN LP
发明人:
MARCZYK, STANISLAW,FARASCIONI, DAVID,TAYLOR, ERIC J.,HATHAWAY, PETER
申请号:
EP07839310
公开号:
EP2081512A4
申请日:
2007.10.05
申请国别(地区):
EP
年份:
2013
代理人:
摘要:
An electrosurgical instrument (10 1000) for treating tissue, comprising: a housing (20 1020) having a shaft (12 1012) extending therefrom having an axis A-A defined therethrough, the shaft (12 1012) being at least partially flexible and including first and second jaw members (110, 120 1110, 1120) attached at a distal end thereof, each jaw member (110, 120 1110, 1120) including an electrically conductive tissue contacting surface (112, 122 1112, 1122) adapted to connect to a source of electrosurgical energy such that the electrically conductive tissue contacting surfaces (112, 122 1112, 1122) are capable of conducting electrosurgical energy through tissue held therebetween a drive assembly (150 1700) disposed in the housing and including a first actuator operably coupled to a drive rod (142 1142) for reciprocation thereof wherein actuation of the first actuator reciprocates the drive rod (142 1142) which, in turn, moves the first and second jaw members (110, 120 1110, 1120) from a first position in spaced relation to one another to a second position closer to one another for engaging tissue a second actuator disposed on the housing (20 1020) and rotatable to articulate the first and second jaw members between an axially aligned condition wherein the first and second jaw members are aligned with the axis A-A, and an articulated condition wherein the first and second jaw members (110, 120 1110, 1120) are displaced in a direction transverse to the axis A-A a knife operably coupled to a distal portion of the drive rod and a cam assembly coupled to the distal portion of the drive rod and configured to translate the knife relative to the jaw members.
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