Method of controlling a surgical system based on a rate of...

A - Human Necessities – 61 – B

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A61B 17/20 (2006.01)

Patent

CA 2559501

A surgical system that is able to sense the onset of an occlusion or other surgical events as well as when an occlusion breaks. To help avoid overheating of the tip, the system of the present invention predicts the temperature of the eye using irrigation flow rate and reduces the power to the handpiece automatically if an overheating situation is predicted. Alternatively or in addition, the system of the present invention monitors the power drawn by the handpiece, which is indicative of the cutting load on the tip, and automatically adjusts the power or stroke of the tip to compensate for increased loads on the tip.

Système chirurgical capable de détecter le début d'une occlusion ou d'autres événements chirurgicaux, ainsi que le moment de la rupture d'une occlusion. Dans le but de contribuer à éviter la surchauffe de la pointe, ce système prédit la température de l'oeil au moyen du débit d'irrigation et limite la puissance électrique alimentant l'instrument manuel de façon automatique dans le cas de prédiction d'une situation de surtempérature. Dans un autre mode de réalisation ou dans un mode de réalisation complémentaire, ce système contrôle le courant consommé par l'instrument manuel, ce qui indique la charge de coupe s'exerçant sur la pointe et règle automatiquement la puissance ou la course de la pointe afin de corriger les augmentations de charge s'exerçant sur cette dernière.

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