Electrosurgical instrument which reduces thermal damage to...

A - Human Necessities – 61 – B

Patent

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Details

A61B 18/18 (2006.01)

Patent

CA 2523675

An electrode sealing assembly (100) for use in combination with an electrosurgical instrument includes first and second jaw members (120). Each jaw members includes an insulative housing (114), a thermally conductive, electrically non-conductive material (128) and a sealing plate (122). The insulative housing (114) has a series of electromechanical interfaces (125a, 125b, 125c) which mate with a corresponding series of electromechanical interfaces which extend from the sealing plate (122) such that the sealing plates are a capable of conducting bipolar energy through tissue held between the jaw members. The thermally conductive, electrically non~-conductive material (128) is configured to encapsulate and secure the sealing plate (122) to the insulative housing (114).

Cette invention concerne un ensemble de suture par électrode destiné à être utilisé conjointement à un instrument électrochirurgical, lequel ensemble comprend un premier et un second élément de mâchoire, lesquels éléments de mâchoire sont mobiles entre une première position dans laquelle ils sont écartés, et une seconde position dans laquelle ils saisissent le tissu. Chacun des éléments de mâchoire comprend un logement isolant, un matériau thermiquement conducteur et non conducteur d'électricité ainsi qu'une plaque de suture. Ce logement isolant comprend une série d'interfaces électromécaniques qui sont appariées à une série correspondante d'interfaces électromécaniques qui s'étendent de la plaque de suture de sorte que les plaques de suture soient capables de conduire l'énergie bipolaire à travers le tissu maintenu entre les éléments de mâchoire. Ce matériau thermiquement conducteur et non conducteur d'électricité est conçu pour encapsuler la plaque de suture et la fixer au logement isolant.

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