Irrigation sleeve for an ultrasonic tip

Surgery – Means for introducing or removing material from body for... – With means for cutting – scarifying – or vibrating tissue

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606107, A61B 1720

Patent

active

058073108

ABSTRACT:
An irrigation sleeve for a surgical instrument which has an outer band that is attached to the sleeve. The irrigation sleeve has an inner bore that extends from a proximal end to a distal end of the sleeve. Located at the distal end of the sleeve is a tip which has an outlet port. The outer band is attached to the distal end of the sleeve at a location that is adjacent to the tip. The sleeve is typically constructed from a silicone rubber material that is flexible enough so that the tip can be repeatedly inserted through an incision in a cornea without damaging the eye. The band is preferably constructed from a rigid material such as TEFLON which will not collapse when inserted through the cornea incision. The band has a low coefficient of thermal conductivity so that heat is not transferred to the cornea tissue. The band also has a low coefficient of friction so that the Decemets membrane does not roll up on the sleeve when inserted into and out of the incision.

REFERENCES:
patent: 4808154 (1989-02-01), Freeman
patent: 5084009 (1992-01-01), Mackool
patent: 5188589 (1993-02-01), Wypych et al.
patent: 5199943 (1993-04-01), Wypych
patent: 5282786 (1994-02-01), Ureche
patent: 5354265 (1994-10-01), Mackool

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