Show simple item record Williams, T. Walley III. en_US 2011-10-03T16:10:25Z 2011-10-03T16:10:25Z 1993 en_US
dc.identifier.citation From "MEC 93," Proceedings of the 1993 MyoElectric Controls/Powered Prosthetics Symposium Fredericton, New Brunswick, Canada: August, 1993. Copyright University of New Brunswick. en_US
dc.description.abstract In another paper Rosa Jacobs will describe the Houston Flexible Wrist and its successful use on a nurnber of children and adults. Reported here is the method followed for generating a production version of this wrist and the several products that are now available. Figure 1 shows a cross sectional view of a typical wrist fit to a user in the Houston trials. The ball element is more accurately desaibed as a knob since there was no attempt to achieve true ball and socket fit. Rather contact between the knob and the edge of the hole in the lamination element tended toward a line contact Both elements were aluminum and the contact generated considerable wear and friction. The most important element in the wrist after the ball and socket is the cornpression pad assembly. As the hand moves with respect to the forearm, the pads are both compressed and stretched, There is a considerable absorption of energy since they are made of Poron foam; however, they do bring the wrist back to neutral whenever a deflecting torque is removed Though not shown in the drawing the glove worn with the typical hand is also part of the system tending to straighten the wrist back to neutral when it is bent. en_US
dc.publisher Myoelectric Symposium en_US
dc.title Reducing The Houston Flexible Wrist To Practice en_US

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