Abstract: An end effector assembly for an electrosurgical instrument comprises a pair of opposing first and second jaw members. At least one of the jaw members 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 comprises first and second sealing members extending along a length of the jaw and being separated by an insulating member therebetween, and is provided with an electrically-conductive cutting electrode supported on the insulting member. The second jaw member comprises third and fourth sealing members extending along the jaw and being separated by a recess therebetween, an electrically-insulating anvil being located in the recess opposite the cutting electrode.

Abstract: A bipolar electrosurgical instrument (12) is provided for cutting and sealing tissue, the instrument comprising first and second jaw members (4 and 5). The first jaw member (4) has an inner surface (7) adapted to cooperate with the inner surface (21) of the second jaw member (5) for grasping tissue therebetween. A first, coagulating electrode (13) is provided on the inner surface of one of the jaw members, and a second, coagulating electrode (15) is present on the inner surface of one of the jaw members, with an insulating member (9) separating the first and second electrodes. A third, cutting electrode (41) is provided on the inner surface of the first jaw member, and a fourth electrode (19) is provided on an outer surface (8; 48) of the first jaw member, separate from the inner surface (7).

Abstract: An end effector assembly for an electrosurgical instrument comprises a pair of opposing first and second jaw members. At least one of the jaw members 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 comprises first and second sealing members extending along a length of the jaw and being separated by an insulating member therebetween, and is provided with an electrically-conductive cutting electrode supported on the insulting member. The second jaw member comprises third and fourth sealing members extending along the jaw and being separated by a recess therebetween, an electrically-insulating anvil being located in the recess opposite the cutting electrode.

Abstract: A tissue morcellating device (1) is provided for morcellating tissue within a body cavity of a patient. The morcellating device (1) comprisies a hollow tube (3) having a distal end portion, and tissue cutting means (5) located at the distal end of the tube, such that, when relative movement is initiated between the tube and the tissue, a core of severed tissue is formed within the tube for removal from the body cavity of the patient through the hollow tube. The hollow tube (3) is provided with a stop mechanism (7) which is longitudinally adjustable with respect to the hollow tube (3), the stop mechanism being provided with a shoulder (8) for limiting the longitudinal insertion of the tube into the patient's body.