Modular radial head prostheses
AssigneeBiomet Manufacturing, LLC
InventorChristopher Harris Martin
Life of this patent
Estimating the term…
Abstract
A modular prostheses system for replacement of the radial head portion of the radius bone, and methods for its use are disclosed. The system comprises a stem component comprising a anchoring portion and a mounting portion, and a head component having an open channel wherein the open channel is configured to connect to the mounting portion along an assembly axis that is transverse to a longitudinal axis of the stem component.
Claims13
A modular prostheses system for replacement of a head portion of a bone, comprising:
- (a) a stem component comprising a anchoring portion and a mounting portion;
- and
- (b) a head component having an open channel, said open channel being configured to connect to the mounting portion along an assembly axis that is transverse to a longitudinal axis of the stem component, wherein the head component comprises an outer shell and an inner core.
A modular prostheses system for replacement of a head portion of a bone, comprising:
- (a) a stem component comprising a anchoring portion and a mounting portion;
- (b) a head component having an open channel, said open channel being configured to connect to the mounting portion along an assembly axis that is transverse to a longitudinal axis of the stem component;
- and
- (c) a locking mechanism configured to prevent the open channel of the head component from indeliberately sliding off the mounting portion once connected to the mounting portion, said locking mechanism being at an interface between the head component and the mounting portion.
A modular prostheses system for replacement of a head portion of a bone, comprising:
- (a) a stem component comprising a anchoring portion and a mounting portion;
- (b) a head component having an open channel, said open channel being configured to connect to the mounting portion along an assembly axis that is transverse to a longitudinal axis of the stem component;
- and
- (c) a tool for inserting and removing the head component while the stem component is in place within an intramedullary canal, said tool comprising:
- (i) a first arm for inserting the head component onto the mounting portion or for removing by translation of the head component from the mounting portion, each by translational force;
- (ii) a second arm for stabilizing the bone and the anchoring portion contained within the intramedullary canal;
- and
- (iii) a translational force mechanism for moving the first arm while the second arm stabilizes the bone.
Dependencies are inferred from the claim text.