Patent ID: 8052593

Claim:
An implantable malleable penile prosthetic device, comprising: a stack of column segments, comprising: a first column segment comprising a first column axis and a ball surface having a generally convex shape facing along the first column axis and a socket surface having a generally concave shape facing in an opposite direction along the first column axis; a second column segment comprising a second column axis and a mating socket, wherein the ball surface of the first column segment is articulable in the matting socket of the second column segment; and a third column segment comprising a third column axis and a mating ball, wherein the socket surface of the first column segment is articulable on the mating ball of the third column segment; wherein: the ball surface of the first column segment includes a protrusion that engages a portion of the mating socket of the second column segment to resist articulation away from a central alignment of the first and second column axes, or the socket surface of the first column segment includes a protrusion that engages a portion of the mating ball of the third column segment to resist articulation away from a central alignment of the first and third column axes.