US Patent 7655050 Computer controlled prosthetic knee device
Patent 7655050 was granted and assigned to Freedom Innovations on February, 2010 by the United States Patent and Trademark Office.
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A prosthetic knee provides a single axis of rotation and includes a hydraulic damping cylinder, a microprocessor, and sensors. Based on input from the sensors, the microprocessor selects a flow path within the hydraulic cylinder in order to provide the proper amount of knee resistance to bending for a given situation. The resistance of each flow path within the hydraulic cylinder is manually preset. Changes in gait speed are accommodated by employing a hydraulic damper with intelligently designed position sensitive damping. Moreover, the knee need not be un-weighted to transition from the stance phase to the swing phase of gait. As a result, the knee safely provides a natural, energy efficient gait over a range of terrains and gait speeds and is simpler, less costly, and lighter weight than the prior art.
US Patent 07655050 Computer controlled prosthetic knee device US Patent 7655050 Computer controlled prosthetic knee device
US Patent 07655050 Computer controlled prosthetic knee device
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