Abstract: Improved osseointegration devices and structures, including such structures that can be used in connection with prosthetic limbs. Examples include a self-centering implant/nut configuration, a centering device, a tapered mounting screw hole, a coupling device, and an aiming device. The devices are highly efficacious. For example, they can be secured with minimal residual bone, and may be removed without significant bone destruction.

Abstract: A tissue contact surface for use on a surgical retractor is provided. The tissue contact surface comprises a generally smooth surface; and a plurality of partial ellipsoid surfaces extending out and away from the generally smooth surface. The plurality of partial ellipsoid surfaces comprise a first partial ellipsoid surface and an adjacent second partial ellipsoid surface. The first partial ellipsoid surface extends approximately 0.5 millimeters to 1 centimeter out from the generally smooth surface. A spacing between the first partial ellipsoid surface and the second partial ellipsoid surface is approximately 0.5 millimeters to 1 centimeter. In various embodiments, the plurality of partial ellipsoid surfaces are 3D printed onto the generally smooth surface.

Abstract: Improved osseointegration devices and structures, including such structures that can be used in connection with prosthetic limbs. Examples include a self-centering implant/nut configuration, a centering device, a tapered mounting screw hole, a coupling device, and an aiming device. The devices are highly efficacious. For example, they can be secured with minimal residual bone, and may be removed without significant bone destruction.

Abstract: A tissue contact surface for use on a surgical retractor is provided. The tissue contact surface comprises a generally smooth surface; and a plurality of partial ellipsoid surfaces extending out and away from the generally smooth surface. The plurality of partial ellipsoid surfaces comprise a first partial ellipsoid surface and an adjacent second partial ellipsoid surface. The first partial ellipsoid surface extends approximately 0.5 millimeters to 1 centimeter out from the generally smooth surface. A spacing between the first partial ellipsoid surface and the second partial ellipsoid surface is approximately 0.5 millimeters to 1 centimeter. In various embodiments, the plurality of partial ellipsoid surfaces are 3D printed onto the generally smooth surface.