Sheet based triply periodic minimal surface implants for promoting osseointegration and methods for producing same

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United States of America Patent

PATENT NO 11026798
SERIAL NO

16991638

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Abstract

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Provided herein are implants and methods for producing implants. In at least one embodiment, the implants include sheet-based, triply periodic, minimal surface (TPMS) portions. According to one embodiment, the TPMS portions include a gyroid architecture that provides for improved osseointegration and mechanical performance over previous implants due to novel ratios of porosity to compressive strength, among other features. In one or more embodiments, the gyroid architecture is organized into unit cells that demonstrate anisotropic mechanical performance along an insertion direction. In various embodiments, the present methods include novel selective laser melting (SLM) techniques for forming the TPMS portions of implants in a manner that reduces defect formation, thereby improving compressive performance and other implant properties.

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Patent Owner(s)

Patent OwnerAddress
DUKE UNIVERSITY2812 ERWIN ROAD SUITE 306 DURHAM NC 27705

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gall, Ken Durham, US 12 146
Kelly, Cambre Durham, US 11 135
Miller, Andrew Todd Durham, US 18 184
Rexrode, Matthew Durham, US 9 135

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