Rod for spinal fixation implement and spinal fixation implement provided with same
AssigneeGloberide, Inc.
InventorsKatsuhiro Oikawa, Takuji Kawamura
Life of this patent
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Abstract
Provided is a fixture rod that is excellent in bonding strength between a core material and a reinforcing fiber layer and has high rigidity and high durability against a deformation load. A fixture rod according to one embodiment of the present disclosure comprises: a core member containing a resin; and a reinforcing fiber layer provided on the core member, and is configured such that the resin of the core member and a resin of the reinforcing fiber layer are the same resin, or the resin of the core member and the resin of the reinforcing fiber layer are different resins, and a critical surface tension of each of the resin of the core member and the resin of the reinforcing fiber layer is 20 mN/m or more.
Claims13
A fixture rod comprising:
- a core member containing a resin, the core member having a plurality of recesses formed on an outer surface of the core member that each have a longest dimension extending in a circumferential direction of the core member or an inclined direction relative to the circumferential direction of the core member, and a depth of each of the plurality of recesses is in a range of from 3 μm to 200 μm;
- and
- a reinforcing fiber layer provided on the core member,
- wherein the resin of the core member and a resin of the reinforcing fiber layer are an identical resin, or the resin of the core member and the resin of the reinforcing fiber layer are different resins, and a critical surface tension of each of the resin of the core member and the resin of the reinforcing fiber layer is 20 mN/m or more.
Dependencies are inferred from the claim text.