Anterior chamber stabilizing device for use in eye surgery

A - Human Necessities – 61 – M

Patent

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Details

A61M 1/00 (2006.01) A61B 17/32 (2006.01) A61F 9/007 (2006.01)

Patent

CA 2372277

An irrigation tube (28) that has a relatively high fluidic resistance. The high resistance can be created by providing a relatively long tube. The aspiration tube (34) and the irrigation tube (28) may be coupled to an anterior chamber of a cornea (16) during a phaco procedure. The high resistance of the tube will minimize the instantaneous change of flowrate out of the cornea (16) in the event an occlusion is cleared from the aspiration tube (34). Minimizing the change in flowrate will tend to insure a higher flowrate from the irrigation line and a positive pressure within the cornea (16). The aspiration tube (34) may have a plurality of pre-formed coils (42) to minimize the effective length of the tube.

L'invention concerne un tube d'irrigation (28) dont la résistance fluidique est relativement élevée. Cette résistance élevée peut être créée par la présence d'un tube relativement long. Le tube d'aspiration (34) et le tube d'irrigation (28) peuvent être raccordés à une chambre antérieure d'une cornée pendant une phaco-procédure. La résistance élevée du tube minimisera le changement instantané de la vitesse d'écoulement hors de la cornée (16) lorsqu'une occlusion est éliminée du tube d'aspiration (34). La réduction du changement au niveau de la vitesse d'écoulement contribuera à assurer une vitesse d'écoulement plus élevée de la ligne d'irrigation et une pression positive dans la cornée (16). Le tube d'aspiration (34) peut avoir plusieurs bobines préformées (42), ce qui permet de réduire la longueur réelle du tube.

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