Polymer re-inforced anatomically accurate bioactive prostheses

Details Polymer re-inforced anatomically accurate bioactive prostheses Polymer re-inforced anatomically accurate bioactive prostheses

A - Human Necessities

61

K

A61K 6/033 (2006.01) A61F 2/28 (2006.01) A61L 27/42 (2006.01) A61L 27/46 (2006.01) A61F 2/00 (2006.01) A61F 2/02 (2006.01) A61F 2/30 (2006.01)

Patent

CA 2371914

Customized implants for use in reconstructive bone surgeries where anatomical accuracy and bone adaptation are important, such as plastic and craniomaxillofacial reconstructions. This implant comprises a porous surface layer and a tough inner core of interpenetrating phase composite. The porous surface layer enhances the biocompatibility, tissue ingrowth, and implant stability. The tough inner core improves the mechanical properties of the implant with a high fracture toughness and a low modulus. The anatomical accuracy of the implants will minimize the intra-operative manipulation required to maintain a stable host bone-implant interface.

L'invention se rapporte à des implants personnalisés destinés à des opérations de chirurgie osseuse reconstructive dans lesquelles la précision anatomique et l'adaptation osseuse sont importantes, telles que dans les reconstructions cranio-maxillofaciales et plastiques. Un tel implant comporte une couche superficielle poreuse et un noyau interne haute résistance constitué d'un composite à phases enchevêtrées. La couche superficielle poreuse renforce la biocompatibilité, l'interposition tissulaire et la stabilité de l'implant. Le noyau interne haute résistance confère à l'implant des caractéristiques améliorées telles qu'une grande résistance aux fractures et un module faible. La précision anatomique de ces implants permet de minimiser les manipulations peropératoires requises pour le maintien d'une interface stable entre l'implant et l'os hôte.

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