Pseudo-Fluid Control Extension System Public
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A pseudo-fluid control extension system was created to manipulate a medical device. The device had the ability to control a transesophageal echocardiogram transducer (TEE) from a distance of five feet. Designs were created using cable and hydraulic systems, but both systems were problematic. A pseudo-fluid system consisting of tubes filled with steel balls was developed to capture the positive aspects of cable and fluid systems. The user interface consisted of two rotatable knobs that actuate rack and pinion gear sets, which push the pseudo-fluid balls through tubes. At the distal ends of the tubes, the balls move the racks of rack and pinion gear sets that rotate shafts in a TEE. The resulting user interface has ergonomic and mechanical properties similar to the original TEE.
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