Porous nickel-titanium alloy article
AssigneeBiorthex Inc.
InventorVictor Gjunter
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Abstract
A porous article of a nickel-titanium alloy, said article having a porosity of 8 to 90% and said porosity being defined by a network of interconnected passageways extending throughout said member, said network exhibiting a permeability of fluid material effective to permit complete migration of the fluid material throughout said network, said permeability being isotropic, and said member being elastically deformable; the porous article is useful as a biomedical implant and in other non-medical applications including the working element of cryogenic surgical instruments.
Claims12
A porous article having a porous sintered powder body based on a nickel-titanium alloy, said article having a porosity of 8 to 90% and said porosity being defined by a network of interconnected passageways extending throughout said sintered powdered body, said network exhibiting a permeability for fluid material effective to permit complete migration of the fluid material throughout said network, said permeability arising from capilliarity in said network and said network having a distribution of pores as follows:
- ______________________________________ Pore Size in Microns Quantity ______________________________________ 10.sup.-2 -10.sup.-1 1-15% 10.sup.1 -10 5-10% 10-100 10-20% 100-400 20-50% 400-1000 10-50% above 1000 remainder to 100%, ______________________________________
- said article being elastically deformable.
Dependencies are inferred from the claim text.