Vessel sealer and divider with non-conductive stop members

A - Human Necessities – 61 – B

Patent

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Details

A61B 18/14 (2006.01) A61B 17/28 (2006.01) A61B 19/00 (2006.01)

Patent

CA 2442598

An endoscopic bipolar forceps for sealing and dividing tissue includes an elongated shaft having opposing jaw members at a distal end thereof. The jaw members are movable relative to one another from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members cooperate to grasp tissue therebetween. The jaws members are connected to a source of electrical energy such that the jaw members are capable of conducting energy through tissue held therebetween to affect a tissue seal. At least one non-conductive and spaced- apart stop member is disposed on an inner-facing surface of the jaw members to regulate the gap distance between the jaw members when tissue is held therebetween. The forceps also includes a longitudinally reciprocating knife which severs the tissue after sealing at a location which is proximate the sealing site.

L'invention porte sur une pince bipolaire endoscopique servant à sceller et à séparer des tissus. Cette pince comprend une tige allongée dont une extrémité distale est équipée d'éléments de mâchoire opposés. Ces éléments de mâchoire sont mobiles les uns par rapport aux autres et peuvent être disposés dans une première position dans laquelle ils sont espacés les uns des autres et dans une seconde disposition dans laquelle ils peuvent coopérer de manière à saisir des tissus. Lesdits éléments de mâchoire sont reliés à une source d'énergie électrique de manière à pouvoir conduire de l'énergie à travers des tissus saisis afin de sceller ces derniers. Au moins un élément de butée non conducteur séparé est disposé sur une surface intérieure des éléments de mâchoire afin de régler l'écartement entre les éléments de mâchoire lorsque des tissus ont été saisis. La pince comprend également un couteau oscillant qui coupe les tissus scellés au niveau d'une zone proche de l'endroit où ils ont été scellés.

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