Abstract: The present invention is directed to a prosthetic adapter that allows for rotation of a prosthetic about a central axis. In one embodiment, the invention is a prosthetic adapter comprising: a first component comprising: a first pyramid block receiver comprising a first pyramid block receiving cavity; a collar integrally formed as a single monolithic component with the first pyramid block receiver, the collar comprising an inner surface forming a central cavity formed about a first central axis; and a second component comprising: a second pyramid block receiver comprising a second pyramid block receiving cavity; and a hub integrally formed as a single monolithic component with the second pyramid block receiver, the hub extending along a second central axis, the hub positioned in the central cavity so that the first and second central axes are substantially coaxial.

Abstract: The present invention is directed to a prosthetic adapter that allows for rotation of a prosthetic about a central axis. In one embodiment, the invention is a prosthetic adapter comprising: a first component comprising: a first pyramid block receiver comprising a first pyramid block receiving cavity; a collar integrally formed as a single monolithic component with the first pyramid block receiver, the collar comprising an inner surface forming a central cavity formed about a first central axis; and a second component comprising: a second pyramid block receiver comprising a second pyramid block receiving cavity; and a hub integrally formed as a single monolithic component with the second pyramid block receiver, the hub extending along a second central axis, the hub positioned in the central cavity so that the first and second central axes are substantially coaxial.

Abstract: The present invention is directed to a prosthetic adapter that allows for rotation of a prosthetic about central axis. In one embodiment, the invention is a prosthetic adapter comprising: a first component adapted to be coupled to a residual limb; a second component adapted to be coupled to a prosthesis; the first component or the second component comprising a collar forming a central cavity formed about a first central axis; the other one of the first component or the second component comprising a hub extending along a second central axis, the hub positioned in the central cavity so that the first and second central axes are substantially coaxial; wherein when the hub is positioned within the central cavity of the collar, the hub has only two degrees of freedom, rotation about the first central axis and translation along the first central axis.

Abstract: The present invention is directed to a prosthetic adapter that allows for rotation of a prosthetic about central axis. In one embodiment, the invention is a prosthetic adapter comprising: a first component adapted to be coupled to a residual limb; a second component adapted to be coupled to a prosthesis; the first component or the second component comprising a collar forming a central cavity formed about a first central axis; the other one of the first component or the second component comprising a hub extending along a second central axis, the hub positioned in the central cavity so that the first and second central axes are substantially coaxial; wherein when the hub is positioned within the central cavity of the collar, the hub has only two degrees of freedom, rotation about the first central axis and translation along the first central axis.