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US 2004/0107001 A1Published application
Joint prostheses and components thereof
AssigneeApex Surgical, LLC
InventorsEdward J. Cheal, George B. Cipolletti
Life of this patent
Estimating the term…
Abstract
Modular joint prostheses and components thereof are disclosed. In an embodiment, a joint prosthesis may include a head member, a neck member, and a stem member.
Claims20
A joint prosthesis, comprising:
- a head member so sized and shaped as to be articulatable with a joint socket, the head member defining a head bore;
- a neck member, having
- a base;
- a plug protruding from the base so sized and shaped as to be receivable in the head bore;
- and
- a spigot protruding from the base, the spigot having a first cylinder adjacent the base, and a second cylinder having a diameter and being disposed adjacent the first cylinder, the first cylinder having a diameter greater that the diameter of the second cylinder;
- and
- a stem member, having
- a proximal end defining a stem bore, the stem bore sized and shaped for receiving the spigot and for engaging the periphery of the first cylinder of the spigot in the stem bore by friction-tight press-fit when the stem bore receives the spigot;
- and
- a shaft extending from the proximal end and being sized and shaped for seating in a cavity of a long bone.
8 more elements
A joint prosthesis, comprising:
- a head member so sized and shaped as to be articulatable with a joint socket, the head member defining a head bore;
- a neck member, having
- a base defining at least one receptacle;
- a plug protruding from the base so sized and shaped as to be receivable in the head bore;
- and
- a spigot protruding from the base;
- and
- a stem member, having
- a proximal end defining a stem bore, the stem bore sized and shaped for receiving the spigot and for engaging the spigot in the stem bore by friction-tight press-fit when the stem bore receives the spigot;
- a key protruding from the proximal end, the key so positioned as to be received in the at least one receptacle of the neck member as the stem bore receives the spigot;
- and
- a shaft extending from the proximal end and being sized and shaped for seating in a cavity of a long bone.
9 more elements
A joint prosthesis, comprising:
- a head member so sized and shaped as to be articulatable with a joint socket, the head member defining a head bore;
- a neck member, having
- a base;
- a plug protruding from the base so sized and shaped as to be receivable in the head bore;
- and
- a spigot protruding from the base;
- and
- a stem member, having
- a proximal end defining a stem bore, the stem bore sized and shaped for receiving the spigot and for engaging at least a portion of the periphery of the spigot in the stem bore by friction-tight press-fit as the neck member becomes fully seated on the stem member;
- and
- a shaft extending from the proximal end and being sized and shaped for seating in a cavity of a long bone.
8 more elements
A stem component of a joint prosthesis, comprising:
- a proximal end;
- and
- a shaft extending from the proximal end, the shaft sized and shaped for seating in a cavity of a long bone, and the shaft terminating in a distal end having at least three tines defined by slots in the shaft, the slots forming an acute angle.
Dependencies are inferred from the claim text.