Surgical handpiece tip

A - Human Necessities – 61 – F

Patent

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Details

A61F 9/007 (2006.01) A61B 18/04 (2006.01) A61B 18/14 (2006.01)

Patent

CA 2366875

A surgical handpiece tip with at least two coaxially spaced electrically conductive tubes. The tubes are separated by an electrical insulator. The interior of the inner tube is used for aspiration of liquefied tissue. The distal portion of the interior tube terminates just inside of the outer tube so as to form a boiling region. Electrical current is passed between the inner and outer tube to rapidly boil any surgical fluid in the boiling region. The boiling fluid rapidly expands out of the ring between the tubes and contacts the targeted tissue, thereby liquefying the tissue and allowing the tissue to be aspirated.

L'invention concerne une extrémité de pièce à main chirurgicale, dotée d'au moins deux tubes électroconducteurs, espacés coaxialement. Les tubes sont séparés par un isolateur pour l'électricité. L'intérieur du tube interne est utilisé pour l'aspiration de tissu liquéfié. La partie distale du tube intérieur se termine juste à l'intérieur du tube extérieur, de sorte qu'une région à bouillir soit formée. Du courant électrique est envoyé entre le tube extérieur et le tube intérieur, de sorte que le fluide chirurgical, quel qu'il soit, bouille rapidement dans la zone à bouillir. Le fluide en ébullition se dilate rapidement, sort de l'anneau entre les tubes et entre en contact avec le tissu cible, ce qui induit la liquéfaction du tissu et permet son aspiration.

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