Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone
Patent
1994-04-14
1996-03-05
Brittingham, Debra S.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
Bone
623 66, A61F 228
Patent
active
054963737
ABSTRACT:
A bone replacement structure for cadavers which includes telescoping tubes which are joined to each other with a stepped coupling. The coupling includes a first member with a series of spaced openings or holes and a second member having at least one end opening larger than the diameter of the spaced openings or holes. The members are joined by a plastic covered wire which is inserted with a press fit through the small openings to firmly and fixedly interconnect the extended members in position. The outer ends of the bone replacement tubes have a hangscrew unit which is separately secured to the tube end. Each hangscrew unit includes a short cup-shaped cap which telescopes over the end of the elongated tubular member. Prior to attachment of the cap, a hangscrew is clamped to the face of the cap by an internal nut and an external nut on the threaded rod to firmly fix the hangscrew to the member with the self-tapping screw projecting therefrom. The cap is then secured to the telescoping member, as by a suitable adhesive or the like. For a shoulder or hip connection, the cap is secured to an elbow having a leg press-fitted to the bone tube for proper bone placement. At least one turn of the thread of the rod is exposed externally beyond the exterior clamping nut.
REFERENCES:
patent: 2600578 (1952-06-01), Royer
patent: 3017183 (1962-01-01), Chalcroft
patent: 3556093 (1971-01-01), Quick
patent: 4505268 (1985-03-01), Sgandurra
patent: 4863473 (1989-09-01), Glowczewskie, Jr. et al.
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