Cracking and rotating cataract for removal from eye

Details Cracking and rotating cataract for removal from eye Cracking and rotating cataract for removal from eye

1992-05-05

1993-06-29

Pellegrino, Stephen C.

Surgery

Instruments

Means for removing, inserting or aiding in the removal or...

606 1, 128898, 623 4, 623 6, A61B 1700, A61B 1900

Patent

active

052229602

ABSTRACT:
A method and instruments for cracking a cataract nucleus into smaller segments and repositioning them within the lens capsule for removal from the eye by phakoemulsification. After a trough has first been formed in the nucleus, a "cracker" instrument having two separable blades is inserted into the trough and the blades are moved apart so that they press outwardly against the opposite sides of the trough and thereby split the nucleus in half. A "rotator" instrument having an enlarged angulated foot at the end of a narrow shank may be used to rotate the split segments in the capsule to position them for phakoemulsification. The cracking and rotating technique is easier and safer than the prior technique.

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patent: 4957505 (1990-09-01), McDonald
Ocular Surgery News, May 15, 1990-p. 54-"No Fault insurance Don't try the nuclear splitting techniques without it".
Ocular Surgery News, Feb. 1, 1990-p. 32-Surgical Maneuvers-- "Refinements to the hydrodelineation technique".
Ocular Surgery News, Feb. 1, 1990-p. 33-"Focus on Phaco--`Advanced phaco`: time to consolidate".
Catalog-Grieshaber & Co. AG, Switzerland, Ophthalmic Surgical Instruments.
Ocular Surgery News, Apr. 1, 1990 (pp. 60, 61) "Focus on Phaco--Kinder, gentler, bite-sized approach".

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