| abstract |
A prosthetic insert unit for cushioning shocks in prosthetics is provided. The unit includes attachment member ( 150 etc.), a lower sleeve ( 124 ′ etc), a slide bearing ( 152 ′ etc.) to allow free reciprocal motion therebetween, an elastomeric energy storage member ( 124 ′ etc.) received in the interior of the sleeve ( 124 ′ etc.), a piston ( 134 ′ etc.) cooperative with said elastomer member to compress same, and an anti-rotation mechanism. Preferably, the anti-rotation mechanism is integral with the slide bearing ( 152 ′ etc.). The elastomer member provides controlled deflection as well as damping for the insert. Preferably, an anti-click element ( 269 etc.) is provide to minimize rebound clicking. Acoustical elements ( 268 etc.) may also be included to minimize noise transmission into other areas of the insert. |