METHODS, APPARATUS AND SYSTEM FOR REMOVAL OF LENSES FROM MAMMALIAN EYES

摘要

This invention is a system (20) for removing the lens from an eye of a mamma l, including a lens removal device (30) having a probe (28) for penetrating the lens capsule. The probe (28) includes a sheath (120) that shields a rotating impeller (128) at all times, with the impeller (128) being pneumatically actuated to advance to a lens removal position with the sheath (120). The impeller (128) is pneumatically rotated using a turbine mechanism within a handle for the probe. Irrigation and aspiration are provided to facilitate removal of the lens tissue. The turbine is driven with pulsed air to prevent striation. A purge/protection cap helps remove air bubbles from the system prior to use, and protects the delicate impeller during transport. An operating system is also provided with a foot pedal actuator (32).