A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
128/82
A61F 9/00 (2006.01) A61B 3/16 (2006.01) A61F 9/007 (2006.01) A61B 19/00 (2006.01)
Patent
CA 1316783
-26- FLUID-CARRYING COMPONENTS OF APPARATUS FOR AUTOMATIC CONTROL OF INTRAOCULAR PRESSURE Abstract An ophthalmic device and system for measuring and controlling relative fluid pressure inside an ocular globe includes a surgical instrument which is adapted to penetrate the ocular globe. A fluid pressure transducer is mounted on the instrument so that when the instrument penetrates the ocular globe the transducer is located adjacent to an opening that communicates with the interior of the globe so that it can react to pressure changes in the fluid therein and generate signals in response to changes in the pressure of the fluid. The signal is transmitted external of the instrument to a control system which is operatively connected to the transducer for first receiving signals from the transducer and then controlling a fluid supply system in response to signals according to a predetermined set of instructions. The control system is connected to a closed loop feed system in which fluid is continuously circulated. Fluctuations in intraocular pressure cause the control system to divert fluid from the feed system to the ocular globe to a conduit connected to the closed loop. 03090/1/1-1-13/11
580229
Armendiades Constantine D.
Moorhead Louise C.
Armoor Ophthalmics Incorporated
Kirby Eades Gale Baker
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