Abstract: An implantable modular orthopedic prosthesis, preferably for hip, knee or shoulder arthroplasty, is disclosed which consists of three components. A first component has an elongated stem with a free end, configured to be situated within the intramedullary canal of a patient's bone, and an opposite end having an articulating portion such as a Morse-tapered member. A second component has another articulating portion which can also be a corresponding tapered member that is matingly engageable with the articulating portion of the first component. A third component has a body with a linearly-extruded channel through which the articulating portions are adjustably received, wherein at least one of the first and second components is radially-expandable to pressure lock against an internal surface of the channel in a selected position and arrest the first, second and third components together as the articulating portions are fully engaged with one another.

Abstract: An implantable modular orthopedic prosthesis, preferably for hip or knee arthroplasty, is disclosed which consists of three components. A first component has an elongated stem with a free end, configured to be situated within the intramedullary canal of a patient's bone, and an opposite end having an articulating portion such as a Morse-tapered member. A second component has another articulating portion which can also be a corresponding Morse-tapered member that is matingly engageable with the articulating portion of the first component. A third component has a body with a linearly-extruded channel through which the articulating portions are adjustably received, wherein at least one of the components is radially-expansible to pressure lock against an internal surface of the channel in a selected position and arrest the first, second and third components together as the articulating portions are fully engaged with one another.

Abstract: An adjustable column connector apparatus which provides for quick, easy and accurate installation of columns during building construction. The apparatus includes an inner connector member with a threaded socket, and an outer member with a corresponding threaded body which mates with the threaded socket. The inner connector member is attached to a column end by screws. The threaded body is engaged in the threaded socket, and the outer connector member is rotatably attached to an adjacent structure by a lag which slidably fits within a slot in the outer connector member. The outer connector member is rotated relative to the inner connector member to advance or retract the threaded body within the threaded socket and correspondingly draw down or push away the adjacent structure relative to the column end.

Abstract: An extensible tether apparatus comprising a flexible cord attached to a ring at a first, fixed end, a first loop formed by passing a second, free end of the cord through the ring, a second loop formed by passing the free end of the cord through the ring, and a third loop formed by passing the free end of the cord through a channel defined by the first and second loops. The length of cord adjacent the free end and the size of the third loop are adjusted by slidably extending or retracting the cord through the channel formed by the first and second loops. When tension is applied to the cord at the free end and/or the third loop, the first and second loops frictionally engage the portion of the cord passing through the channel in the first and second loops and prevent the cord from slipping from the adjusted position.