EP0057597A2
Expired / Lapsed
EP
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A joint prosthesis
Assignee: OEC Europe Ltd
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Filing: 1982-01-29
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Granted: —
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Expires: 2002-01-29
Abstract
Abstract A small joint spacing prosthesis comprises an elongate silicone rubber body 1 reinforced by a Dacron or nylon string 2 and is made by moulding the body 1 with the string 2 therein. The middle of the body 1 forms a spacer 3 of spherical shape with flat end faces 4 providing for abutment of the bone ends. The remainder of the body 1 forms intramedullary stems 6 with rounded outer ends 5.
Inventors
- 👤 Basil Hessein Helal
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 20:20
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/42; A61F2/4225; A61F2/3094; A61F2/30965; A61F2/4241; A61F2/30721; A61F2/30724; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30069; A61F2002/30108; A61F2002/30199; A61F2002/30286; A61F2002/30316; A61F2002/30535; A61F2002/30563; A61F2002/4233; A61F2002/4243; A61F2002/4251; A61F2002/4256; A61F2002/4258; A61F2230/00; A61F2230/0063
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
89 words
A joint prosthesis, comprising a spacer (3) for insertion between first and second bones, and first and second intramedullary stems (6) extending from respective opposite ends of said spacer (3) for insertion into the respective bones, the spacer (3) being of greater width than the stems (6), thereby providing shoulders (4) against which the respective ends of the bones can abut, the arrangement being such that, in the prosthesis when implanted, bending of the joint occurs at the respective end zones of the stem (6) nearer the spacer (3).
Claim 2
Dependent Claim
89 words
A joint prosthesis, comprising a spacer (3) for insertion between first and second bones, and first and second intramedullary stems (6) extending from respective opposite ends of said spacer (3) for insertion into the respective bones, the spacer (3) being of greater width than the stems (6), thereby providing shoulders (4) against which the respective ends of the bones can abut, the arrangement being such that, in the prosthesis when implanted, bending of the joint occurs at the respective end zones of the stem (6) nearer the spacer (3).
Claim 3
Dependent Claim
13 words
A prosthesis according to claim 1, wherein said stems (6) comprise elastomeric material.
Claim 4
Dependent Claim
18 words
A prosthesis according to claim 1 or 2, wherein said stems (6) comprise respective flexible reinforcing cores (2).
Claim 5
Dependent Claim
12 words
A prosthesis according to claim 3, wherein said cores (2) comprise string.
Claim 6
Dependent Claim
21 words
A prosthesis according to claim 2, wherein said spacer (3) and said stems (6) comprise one piece of said elastomeric material.
Claim 7
Dependent Claim
20 words
A prosthesis according to claim 5, wherein said spacer (3) and said stems (6) comprise a flexible reinforcing core (2).
Claim 8
Dependent Claim
18 words
A prosthesis according to claim 6, wherein said one piece has been moulded with said core (2) therein.
Claim 9
Dependent Claim
14 words
A prosthesis according to claim 6 or 7, wherein said core (2) comprises string.
Claim 10
Dependent Claim
27 words
A prosthesis according to any preceding claim, wherein said spacer (3) is of spherical shape but with flat end faces (4) from which said stems (6) extend.
Claim 11
Dependent Claim
17 words
A prosthesis according to any preceding claim, wherein said stems (6) have their outer ends (5) rounded.
References Cited (Backward Citations)
No citation records indexed.
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