Patent ID: 6994732

Claim:
A prosthetic coupling comprising: an annular coupling adapter having a coupling end and an opposed pylon mounting end, the coupling end including a central bore adapted to receive, and be coupled to a prosthetic limb pyramid component; the pylon mounting end including a diametrically restrictable tube with at least two circumferential discontinuities, the diametrically restrictable tube further having an axial depth with a predetermined extension greater than a minimum depth required to adequately secure a prosthetic limb pylon component therein; and the predetermined extension providing the prosthetic coupling height adjustability with respect to the prosthetic limb pylon to which it is adapted to be secured; wherein the at least two circumferential discontinuities include two vertical grooves extending from the pylon mounting end towards the coupling end, wherein the grooves separate adjacent semiannular segments of the diametrically restrictable tube, whereby the adjacent semiannular segments further approach towards one another when the diametrically restrictable tube is constricted.