A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
A61F 9/007 (2006.01) B06B 1/02 (2006.01)
Patent
CA 2745344
A phacoemulsification system includes a phacoemulsification handpiece having a horn coupled to a transducer configured to convert alternating current into mechanical oscillation of the horn. The phacoemulsification handpiece further includes a phacoemulsification needle attached to the horn. The phacoemulsification needle vibrates by oscillation of the horn, to provide for mechanical cutting of tissue and inducing cavitation proximate a tip of the phacoemulsification needle. The phacoemulsification system further includes a control system with associated drive circuitry in connection with the transducer of the phacoemulsification handpiece. The control system is configured to adjust an operating frequency of the transducer to increase or decrease a mechanical cutting performance and a cavitational-induced performance of the phacoemulsification needle.
L'invention concerne un système de phacoémulsification comprenant un instrument de phacoémulsification présentant un bras couplé à un transducteur configuré pour convertir le courant alternatif en oscillation mécanique du bras. L'instrument de phacoémulsification comporte en outre une aiguille de phacoémulsification fixée au bras. L'aiguille de phacoémulsification vibre sous l'effet des oscillations du bras, pour assurer la découpe mécanique des tissus et induire une cavitation proche de la pointe de l'aiguille de phacoémulsification. Le système de phacoémulsification comporte en outre un système de commande avec des circuits d'entraînement associés reliés au transducteur de l'instrument de phacoémulsification. Le système de commande est configuré pour ajuster la fréquence de fonctionnement du transducteur et ainsi augmenter ou réduire les performances de découpe mécanique et les performances induites par cavitation de l'aiguille de phacoémulsification.
Bausch & Lomb Incorporated
Osler Hoskin & Harcourt Llp
LandOfFree
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