SURGICAL INSTRUMENT
An end effector assembly (12) for an electrosurgical instrument comprises a pair of opposing first and second jaw members (13, 14). At least one of the jaw members (13, 14) is movable relative to the other between a first open position in which the jaw members are disposed in a spaced relation relat...
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Sprache: | eng ; fre |
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Zusammenfassung: | An end effector assembly (12) for an electrosurgical instrument comprises a pair of opposing first and second jaw members (13, 14). At least one of the jaw members (13, 14) is movable relative to the other between a first open position in which the jaw members are disposed in a spaced relation relative to one another, and a second closed position in which the jaw members cooperate to grasp tissue therebetween. The first jaw member (13) comprises first and second sealing members (80, 81) extending along a length of the jaw and being separated by an insulating member (17) therebetween, and is provided with an electrically-conductive cutting electrode (16) supported on the insulting member. The second jaw member (14) comprises third and fourth sealing members (83, 84) extending along the jaw and being separated by a recess (23) therebetween, an electrically-insulating anvil (27) being located in the recess opposite the cutting electrode (16). The electrically-insulating anvil (27) is located on a support member (24) attached to one or both of the third and fourth sealing members (83, 84), and the anvil and support member are such that the anvil is spring mounted with respect to the third and fourth sealing members and such that the anvil can move within the recess (23) by at least 0.5 mm when tissue is grasped between the jaws (13, 14) of the end effector assembly.
La présente invention concerne un ensemble effecteur (12) destiné à un instrument électro-chirurgical et comprenant une paire faite de première et seconde mâchoires (13, 14) opposées l'une à l'autre. L'une au moins des mâchoires (13, 14) est mobile par rapport à l'autre entre une première position ouverte dans laquelle les mâchoires sont écartées l'une de l'autre, et une seconde position fermée dans laquelle les mâchoires coopèrent de façon à saisir entre elles le tissu. La première mâchoire (13), qui comprend un premier et un deuxième élément de fermeture hermétique (80, 81) disposés dans le sens de la longueur de la mâchoire et séparés par un élément isolant (17) intercalé entre eux, est pourvue d'une électrode électro-conductrice coupante (16) portée par l'élément isolant. La seconde mâchoire (14), qui comprend un troisième et un quatrième élément de fermeture (83, 84) disposés dans le sens de la longueur de la mâchoire, et séparés par un évidement (23) intercalé entre eux, comprend également une enclume électriquement isolante située dans l'évidement opposé à l'électrode coupante (16). L'enclum |
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