Pneumatically driven ophthalmic scanning endoprobe

摘要

An ophthalmic endoprobe including a hand-piece and a cannula assembly having a longitudinal axis is provided. The cannula assembly including an inner tube concentric with an outer tube; wherein the hand-piece may further include a motor powered by a pneumatic energy source, the motor providing motion to a transmission shaft; and a transmission system to couple the shaft motion to the cannula assembly; wherein the transmission system provides a counter-rotating motion to the inner tube and the outer tube about the longitudinal axis of the cannula. A fluid console for use in endoscopic ophthalmic microsurgery including a pneumatics module to obtain a pneumatic force from an external source and provide an adjustable pneumatic force; a scanning module coupled to the pneumatics module; and an endoprobe coupled to the scanning module is also provided.

主权项

1. An ophthalmic endoprobe comprising:
a hand-piece coupled to a cannula assembly having a longitudinal axis, the cannula assembly comprising an inner tube concentric with an outer tube; wherein the hand-piece further comprises
a motor comprising a mechanical piston moved in a longitudinal direction by a pressurized fluid, the mechanical piston providing motion to a transmission shaft; anda transmission system to couple the shaft motion to the cannula assembly, the transmission system configured to counter-rotate the inner tube and the outer tube about the longitudinal axis of the cannula assembly, the transmission system comprising an uncoupled gear system for independent rotation of the inner tube and the outer tube.