Attachment element for a prosthesis for the articulation of the shoulder
AssigneeLima-Lto SPA
InventorPaolo Dalla Pria
Life of this patent
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Abstract
Attachment element for a prosthesis of the shoulder for the articulation of a humerus in a scapula of a shoulder having a glenoid cavity. The prosthesis comprises a first articulation element associated with the top of the humerus, and a second articulation element associated with the glenoid cavity. The attachment element comprises a first part for removable anchorage to the first or second articulation element, and a second part for attachment of the prosthesis to the bone part of the scapula in a position outside the bulk of the first and second articulation element.
Claims19
A prosthesis of the shoulder for the articulation of a humerus in a scapula of a shoulder having a glenoid cavity comprising an attachment element for said prosthesis, said prosthesis comprising at least a first articulation element associated with the top of said humerus, and a second articulation element associated with said glenoid cavity, the attachment element comprises:
- a first pin part for removable anchorage to said second articulation element associated with said glenoid cavity, and
- a second winged part for attachment of the prosthesis to the bone part of the scapula in a position outside the bulk of said first and second articulation element,
- said second winged part comprising a first segment which extends substantially radially from said first pin part, and a second segment which is angled with respect to said first segment and is directed towards the bone upon which said prosthesis is to be fixed,
- wherein said second winged part comprises at least a fin,
- said fin comprising said first and said second segment,
- wherein said second segment protrudes, when the attachment element is in its assembled condition, with respect to the bulk of the prosthesis, and
- A wherein said fin has a housing seating for auxiliary attachment means, and a support means is provided to attach the second articulation element to the glenoid cavity, said first pin part having at least a first conical segment able to be inserted into a respective cavity provided on the support means.
A prosthesis of the shoulder for the articulation of a humerus in a scapula of a shoulder having a glenoid cavity, comprising:
- a first articulation element associated with the top of said humerus, and
- a second articulation element associated with said glenoid cavity,
- a support comprising a hollow stem for inserting into the scapula and a radial seating,
- said hollow stem having a first end for embedding within the scapula away from the surface of the scapula and an second end opposed to the first end, said hollow stem having an outer surface for contacting the scapula
- said radial seating extending radially from the second end of the hollow stem;
- an attachment element comprising:
- a first pin part for inserting into the hollow stem of the support for removable anchorage to said second articulation element associated with said glenoid cavity, and
- a second winged part for attaching the prosthesis to the bone part of the scapula in a position outside the bulk of said first and second articulation element,
- said second winged part comprising a first segment for overlapping said radial seating of said support and which extends substantially radially from said first pin part, and a second segment which is angled with respect to said first segment and is directed towards the bone of the scapula upon which said prosthesis is to be fixed,
- wherein said second winged part comprises at least a fin,
- said fin comprising said first and said second segment,
- wherein said second segment protrudes, when the attachment element is in its assembled condition, with respect to the bulk of the prosthesis, and
- wherein said fin has a housing seating for auxiliary attachment means.
Dependencies are inferred from the claim text.