Phacoemulsification irrigation sleeve with non-circular orifices

摘要

An irrigation sleeve ophthalmic phacoemulsification (26) comprising: an elongated substantially tubular body elastic (28) having a distal end (30) and a extremoproximal (32) to surround a portion of an axis of a needle phacoemulsification; an enlarged section (34) formed in the proximal end of the body portion to surround a connector needle deuna and for connection to a phacoemulsification handpiece; and wherein adjacent the distal end of the tubular body portion at least one irrigation port (36) is formed, characterized in that said irrigation port is not circular, so that a form of incluyeun hole rounded leading edge as near the distal end and has outlet sides tapered to result dancomo a trailing edge having a radius smaller than the radius of the leading edge.