Abstract:
Deformable joint implants with a generally hyperbolic paraboloid shape are disclosed, including configurations for delivery into the small joints of the body in the wrists, hands, ankle and feet, such as the first carpo-metacarpal joint, which comprises a double- saddle structure. The center of the implant may be supported, or supported and configured as a central opening. Implants with supported center regions may have a uniform or non¬ uniform thickness. A region of non-uniform, reduced thickness may be circular, oval or ring¬ like in shape, with a central support that may have an increased thickness relative to the perimeter region of the implant.
Abstract:
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.
Abstract:
A percutaneously implantable orthopedic device (100, 300, 570, 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, 1801, 1901, 2001, 2210, 2310, 2800, 3101, 3401, 3501, 3701, 3801, 3901, 4001) in a substantially straightened or slightly curved configuration into a joint in a patient. One embodiment of a delivery and/or retrieval system for delivering or retrieving the shape-changing percutaneously implantable orthopedic device joint prosthesis can include a substantially straight (1030b, 1230b) or curved (1030c, 1230c) syringe, hypodermic needle or cannula that is joint expanding (2900), actuating, pivotable, can include a balloon (3000) and/or a loading device (2100, 2220, 2310, 2720, 3120, 3420, 3520, 3720, 3820, 3920) for storing the devices and orienting the device in the proper implantation orientation.
Abstract:
A percutaneously implantable orthopedic device (100, 300, 570, 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, 1801, 1901, 2001, 2210, 2310, 2800, 3101, 3401, 3501, 3701, 3801, 3901, 4001) in a substantially straightened or slightly curved configuration into a joint in a patient. One embodiment of a delivery and/or retrieval system for delivering or retrieving the shape-changing percutaneously implantable orthopedic device joint prosthesis can include a substantially straight (1030b, 1230b) or curved (1030c, 1230c) syringe, hypodermic needle or cannula that is joint expanding (2900), actuating, pivotable, can include a balloon (3000) and/or a loading device (2100, 2220, 2310, 2720, 3120, 3420, 3520, 3720, 3820, 3920) for storing the devices and orienting the device in the proper implantation orientation.