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EP0212084A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Straight, totally rounded stem for anchoring a hip joint prosthesis by means of bone cement

Assignee: Protek AG
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Filing: 1986-05-23
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Granted: —
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Expires: 2006-05-23
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Abstract

Abstract The totally rounded stem (1) is provided in its proximal area with recesses (5) as an anchoring structure. The circumferential surfaces (6) of the recesses (5) are perpendicular to the stem surface. In the event of loads in the direction of the stem axis, i.e. in the direction of the main loads (8), there remains, even after contraction of the bone cement (7), a step-type bearing between recess (5) and bone cement (7). This bearing is perpendicular to the main load direction (8). There are therefore no load components forcing the bone cement (7) out of the recess (5). <IMAGE>

Inventors

  • 👤 Lorenzo Dr.-Med. Spotorno

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-08 07:54
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/32; A61F2/36; A61F2/3662; A61F2/367; A61F2/30767; A61F2/30771; A61F2002/30001; A61F2002/30316; A61F2002/30317; A61F2002/30322; A61F2002/30795; A61F2002/30807; A61F2002/30808; A61F2002/3081; A61F2/46; A61F2002/4631; A61F2250/00; A61F2250/0014; A61F2250/0026

Claims Analysis

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References Cited (Backward Citations)

US3740769A Cited
AU480221B2 Cited
EP0106945A1 Cited
DE3322803A1 Cited
EP0158534A2 Cited

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