PERCUTANEOUSLY DELIVERABLE ORTHOPEDIC JOINT APPARATUS, METHOD AND SYSTEM

摘要

A percutaneously implantable orthopedic device (100a, 100b, 100c, 300a, 300b, 300c, 300d, 300e, 570d, 570e, 570f, 1100, 1200, 1600, 1700) is a shape- changing joint prosthesis with a generally arcuate or generally rectilinear configuration which is delivered through a delivery device (1000) in a substantially straightened or slightly curved configuration into a joint in a patient. The generally arcuate configuration may include an open ring (100b) or spiral shape (100c). The generally rectilinear configuration may include a polygon or zig-zag (570f) shape. The delivery and retrieval device (1000) can be a syringe, hypodermic needle or cannula. The orthopedic device is moveable into its generally arcuate or generally rectilinear configuration in the joint by manipulation or a shape memory set. The orthopedic device acts as a soft compliant bearing surface or cushion that minimizes the bone-on- bone wear from articulation and loading.