Implants based on engineered metal matrix composite...

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/44 (2006.01) A61F 2/06 (2006.01) A61L 27/40 (2006.01) A61L 27/42 (2006.01) A61L 27/56 (2006.01) A61L 31/12 (2006.01) A61L 31/14 (2006.01) A61N 1/05 (2006.01)

Patent

CA 2527327

This invention relates to an implantable medical device to treat a patient. The implantable device can be an orthopedic device such as a spinal implant including, but not restricted to, a disc or nucleus pulposus prosthesis, a spinal rod assembly, or a bone fixation plate. The orthopedic device can be formed to include a metal matrix composite that provides enhanced wear and diagnostic imaging techniques. In other forms, the present invention provides an implantable medical device that includes a porous metal matrix composite that can deliver a therapeutic composition to a patient. In still other forms, the present invention provides an implantable electrical device or lead formed to include a metal matrix composite that provides lower polarization and interfacial impedance and allows enhanced sensing of the physiological signals.

L'invention concerne un dispositif médical implantable destiné à traiter un patient. Ce dispositif implantable peut être un dispositif orthopédique, tel qu'un implant vertébral incluant, entre autres, une prothèse de disque ou de nucleus pulposus, un ensemble tige vertébrale ou une plaque de fixation osseuse. Le dispositif orthopédique peut comprendre un composite à matrice métallique permettant d'obtenir une résistance à l'usure accrue et d'améliorer les techniques d'imagerie diagnostique. Selon d'autres variantes, la présente invention concerne un dispositif médical implantable comprenant un composite à matrice métallique poreux permettant d'administrer une composition thérapeutique à un patient. Selon des variantes supplémentaires, la présente invention concerne un dispositif électrique ou une électrode implantable pouvant comprendre un composite à matrice métallique permettant de réduire la polarisation et l'impédance interfaciale et d'améliorer la détection de signaux physiologiques.

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