James D Schumer

US Patent:

20020198553, Dec 26, 2002

Filed:

Jun 22, 2001

Appl. No.:

09/886489

Inventors:

James Schumer - Mansfield OH, US
Minoru Toh - Aichi, JP

Assignee:

Nidek Co., Ltd.

International Classification:

A61F009/00

US Classification:

606/166000

Abstract:

A corneal surgical apparatus includes: a suction ring to be fixed to a patient s eye, the suction ring having an opening; a suction unit which absorbs air in a space defined between the patient's eye and the suction ring, and which variably sets a suction pressure; a setting unit which sets a desired ocular pressure for the patient eye during surgery, the desired ocular pressure having a predetermined tolerable range; an input unit which inputs a measured ocular pressure of the patient's eye; a controller which controls operation of the suction unit based on the inputted ocular pressure to obtain the set ocular pressure, and which is connected to the suction unit, the setting unit and the input unit.