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

Details Method of controlling a surgical system based on a load on... Method of controlling a surgical system based on a load on...

A - Human Necessities

61

B

A61B 17/32 (2006.01) A61F 9/007 (2006.01)

Patent

CA 2559749

A surgical system that is able to sense the onset of an occlusion or other surgical event as well as the instant an occlusion breaks. To help avoid overheating of the tip, the system determines an approximate temperature of the eye using an irrigation flow rate and reduces the power to the handpiece automatically if an overheating situation is predicted. Alternatively or in addition, the system 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.

L'invention concerne un système chirurgical capable de détecter l'imminence d'une occlusion ou autre événement chirurgical et le moment de l'apparition d'une occlusion. Pour contribuer à éviter la surchauffe de l'extrémité, ce système détermine une température approximative de l'oeil en utilisant un débit d'irrigation et réduit la puissance de la pièce à main automatiquement en cas de prédiction de situation de surchauffe. En guise de variante ou de complément, le système contrôle la puissance sollicitée par la pièce à main, qui renseigne sur la charge exercée à l'extrémité tranchante, et ajuste automatiquement la puissance ou le coup que délivre l'extrémité pour compenser l'augmentation de charge à cette extrémité.

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