Endoprosthesis, in particular for the sternoclavicular joint
AssigneeWaldemar Link GmbH & Co. KG
InventorArnold Keller
Life of this patent
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Abstract
The present invention provides an endoprosthesis for a joint between two bones which cannot be distracted, or which can be distracted only with difficulty. A suitable joint for the endoprosthesis is the sternoclavicular joint. The endoprosthesis has two components, one of which may be attached to the collar bone, and the other which may be attached to the breastbone. One component has a joint head which is insertable into the enclosure part of the second component. The joint head on one component is introduced from the side of the enclosure part on the second component by means of a lateral installation opening in the enclosure part. This arrangement allows little or no distraction of the bones to which the endoprosthesis components are attached when the components are connected.
Claims20
An endoprosthesis comprising:
- (a) a first prosthetic component comprising a first shaft connected to a pot-shaped part, wherein said pot-shaped part comprises a side opening forming a lateral installation opening;
- and
- (b) a second prosthetic component comprising;
- i) a second shaft having at one end a joint head, wherein said joint head is dimensioned so that it is laterally insertable into said pot-shaped part through said lateral installation opening, and
- ii) a closing ring, wherein said closing ring slidingly engages said second shaft.
An endoprosthesis, comprising a first shaft connected to a joint head via a neck part, a second shaft having a longitudinal axis connected to an enclosure part and a closing part,
- said enclosure part comprising a neck opening positioned at an axial end of said second shaft and adapted to receive said joint head with pivoting movement, an installation opening for receiving said joint head, edges of said installation opening being offset laterally from said longitudinal axis from said neck opening and a pot-shaped part having a side wall which includes said installation opening, and
- said closing part being provided to hold said joint head secure within said enclosure part.
Dependencies are inferred from the claim text.