Surface gradient cross-linking method of ultra-high molecular weight polyethylene and the application thereof
Assigneesb-ONE Medical (Suzhou) Co., Ltd., b-ONE Medical Biotech Corporation, b-ONE Ortho, Corp.
InventorZongtao ZHANG
Life of this patent
Estimating the term…
Abstract
The invention relates to a surface gradient cross-linked method of a ultra-high molecular weight polyethylene and the application thereof. The surface gradient crosslinked method of ultrahigh molecular weight polyethylene includes a n ultra-high molecular weight polyethylene surface photoinitiator diffusion step and an ultraviolet light irradiation crosslinking step. In this method, the photoinitiator is diffused deeply into the surface of ultra-high molecular weight polyethylene, the body material shows a gradient cross-linking from the surface to the inside after ultraviolet irradiation so that the whole bulk has a high toughness and the surface there of has a high wear resistance.
Claims14
1-30. (canceled)
An ultra-high molecular weight polyethylene medical implant, wherein the medical implant are partly or entirely made of ultra-high molecular weight polyethylene, the medical implant has at least one supporting surface layer made of ultra-high molecular weight polyethylene, wherein the bearing surface layer is gradient crosslinked, the bearing surface layer is super crosslinked, highly crosslinked and low-degree crosslinked in order from the surface to the inside.
A medical joint, wherein comprising a first joint bearing body and a second joint bearing body, wherein an ultra-high molecular weight polyethylene medical implant according to the claim 1 is provided between the first joint bearing body and the second joint bearing body.
Dependencies are inferred from the claim text.