OPHTHALMIC SURGICAL APPARATUS
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United States of America Patent
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Mar 30, 2017
app pub date -
Sep 29, 2016
filing date -
Sep 30, 2015
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Abstract
An ophthalmic surgical apparatus supplies perfusion solution into a patient's eye from a perfusion solution container stored with the perfusion solution. The ophthalmic surgical apparatus includes a perfusion passage, a non-positive displacement pump, a perfusion pressurizing motor, and a controller. The perfusion passage introduces the perfusion solution in the perfusion solution container to a surgical instrument which will be inserted in an eye. The non-positive displacement pump provided in the perfusion passage includes a blade-like rotor which is rotatable without shutting off the perfusion passage. The perfusion pressurizing motor applies pressure to the perfusion solution by rotating the rotor. The controller controls the drive to the perfusion pressurizing motor.
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