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Merck

A porous tantalum trabecular metal: basic science.

American journal of orthopedics (Belle Mead, N.J.) (2002-05-15)
Robert Cohen
摘要

Conventional materials used for orthopedic reconstruction implants limit the design of new and improved implants. Solid metal is rigid. Porous fixation surfaces have low volumetric porosity available for biologic ingrowth and low frictional characteristics for initial implant stability and have to be bonded to solid-metal substrates. New porous structural biomaterials have been developed to help advance the current generation of prostheses and address unresolved clinical applications. Tantalum trabecular metal offers several advantages over other current conventional materials used for implants by its uniformity and structural continuity, strength, low stiffness, high porosity, and high coefficient of friction.

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Sigma-Aldrich
Sigma-Aldrich
钽, foil, thickness 0.025 mm, ≥99.9% trace metals basis
Sigma-Aldrich
钽, powder, −325 mesh, 99.9% trace metals basis
Sigma-Aldrich
钽, foil, thickness 0.25 mm, ≥99.9% trace metals basis
Sigma-Aldrich
钽, foil, thickness 0.05 mm, ≥99.9% trace metals basis
Sigma-Aldrich
钽, powder, 60-100 mesh, 99.9%
Sigma-Aldrich
钽, wire, diam. 1.0 mm, ≥99.9% trace metals basis
钽, foil, 50x50mm, thickness 0.5mm, annealed, 99.9%
钽, foil, 100x100mm, thickness 1.0mm, annealed, 99.9%
Sigma-Aldrich
钽, foil, thickness 0.5 mm, ≥99.9% trace metals basis
Sigma-Aldrich
钽, foil, thickness 1.0 mm, ≥99.9% trace metals basis
钽, foil, light tested, 150x150mm, thickness 0.05mm, annealed, 99.9%
钽, rod, 100mm, diameter 1.0mm, 99.9%
钽, foil, 100x100mm, thickness 0.125mm, annealed, 99.9%
钽, foil, 100x100mm, thickness 0.100mm, annealed, 99.9%
钽, mesh, 100x100mm, nominal aperture 0.43mm, wire diameter 0.075mm, 50x50 wires/inch, open area 72%, plain weave mesh
钽, mesh, 40x40mm, nominal aperture 0.43mm, wire diameter 0.075mm, 50x50 wires/inch, open area 72%, plain weave mesh
钽, wire reel, 1m, diameter 0.8mm, annealed, 99.9%
钽, foil, 100x100mm, thickness 0.25mm, annealed, 99.9%
钽, sphere, 100pcs, diameter 1.0mm, precision sphere grade, 99.9%
钽, tube, 100mm, outside diameter 7.0mm, inside diameter 6.7mm, wall thickness 0.15mm, as drawn, 99.9%
钽, wire reel, 0.5m, diameter 0.8mm, annealed, 99.9%
钽, foil, 50x50mm, thickness 6.0mm, 99.9%
钽, pellets, 50g, max. size 10mm, 99.9%
钽, foil, 150x150mm, thickness 0.100mm, annealed, 99.9%
钽, foil, 1m coil, thickness 0.04mm, coil width 1mm, annealed, 99.9%
钽, foil, light tested, 100x100mm, thickness 0.025mm, as rolled, 99.9%
钽, tube, 1000mm, outside diameter 3.1mm, inside diameter 2.6mm, wall thickness 0.25mm, as drawn, 99.9%
钽, pellets, 20g, max. size 10mm, 99.9%
钽, rod, 200mm, diameter 1.0mm, 99.9%