Laser handpiece for performing transmyocardial...

A - Human Necessities – 61 – B

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Details

A61B 18/24 (2006.01) A61B 17/00 (2006.01) A61B 18/14 (2006.01)

Patent

CA 2346653

A laser ablation device (10) is provided with a handpiece (14) having an extender (28) at the distal end of an articulating tube (26) from where the optical fiber (12) exits the handpiece (14) for inhibiting blood, debris from being deposited between the articulating tube (26), and the optical fiber (12) during a TMR procedure. The laser ablation device (10) allows for longitudinal movement of an optical fiber (12) at a controlled rate coordinated with the laser energy generator (18) output to ablate heart tissue. Additionally, the laser ablation device (10) allows for effortless withdrawal of the optical fiber (12) into the articulating tube (26) after the TMR procedure.

L'invention concerne un dispositif (10) d'ablation par laser pourvu d'une pièce (14) à main dotée d'une rallonge au niveau de l'extrémité distale d'un tube (26) articulé par lequel la fibre optique (12) sort de la pièce (14) à main pour empêcher le dépôt de sang ou de débris entre le tube (26) articulé et la fibre optique (12), lors d'une intervention de revascularisation transmyocardique. Le dispositif (10) d'ablation par laser permet de coordonner le déplacement longitudinal d'une fibre optique (12) à vitesse contrôlée avec la sortie du générateur (18) d'énergie laser destinée à l'ablation des tissus cardiaques. En outre, le dispositif (10) d'ablation par laser permet de rétracter facilement la fibre optique (12) dans le tube articulé (26) après l'intervention de revascularisation transmyocardique.

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