Open cell tantalum structures for cancellous bone implants and cell and tissue receptors
AssigneeUltramet
InventorRichard B. Kaplan
Life of this patent
Estimating the term…
Abstract
A tantalum open cell structure is formed by chemical vapor deposition onto a reticulated carbon foam substrate. Tantalum has a long history of use as an implant material, in both bone and soft tissue. This lightweight, strong, porous structure, mimicking the microstructure of natural cancellous bone, acts as a matrix for the incorporation of bone, providing optimal permeability and a high surface area to encourage new bone ingrowth.
Claims18
A cancellous bone substitute and cell and tissue reception material, including,
- a reticulated open cell substrate formed of a lightweight substantially rigid foam carbonaceous material having open spaces defined by an interconnecting network wherein said foam material has interconencted continuous channels, and
- a thin film of metallic material deposited onto the reticulated open cell substrate and covering substantially all of the interconnecting network to form a composite porous biomaterial creating a porous microstructure similar to that of natural cancellous bone.
A cancellous bone substitute and cell and tissue receptive material, including,
- a reticulated open cell substrate formed of a lightweight substantially rigid foam ceramic materal having open spaces defined by an interconnecting network wherein said foam material has interconnected continuous channels, and
- a thin film of metallic material deposited onto the reticulated open cell substrate and covering substantially all of the interconnecting network to form a composite porous biomaterial creating a porous microstructure similar to that of natural cancellous bone.
A composite material useful as a bone substitute for bone implants and cell and tissue reception, the structure of which is characterized by a non-metallic open cell substantially rigid foam carbonaceous substrate formed by an interconnected network having interconnected continuous channels to create a porous microstructure similar to that of cancellous bone and a metallic film substantially covering the interconnected network.
A cancellous bone substitute and cell and tissue receptive material, including,
- a reticulated open cell substrate formed of a lightweight substantially rigid foam material having open spaces defined by an interconnecting network wherein said foam material has interconnected continuous channels, and
- a thin film of tantalum material deposited onto the reticulated open cell substrate and covering substantially all of the interconnecting network to form a composite porous biomaterial creating a porous microstructure similar to that of natural cancellous bone.
A cancellous bone substitute and cell and tissue receptive material, including,
- a reticulated open cell substrate formed of a lightweight substantially rigid foam material having open spaced defined by an interconnecting network wherein said foam material has interconnected continuous channels, and
- a thin film of tantalum alloy material deposited onto the reticulated open cell substrate and covering substantially all of the interconnecting network to form a composite porous biomaterial creating a porous microstructure similar to that of natural cancellous bone.
A cancellous bone substitute and cell and tissue receptive material, including,
- a reticulated open cell substrate formed of a lightweight substantially rigid foam material having open spaces defined by an interconnecting network wherein said foam material has interconnected continuous channels, and
- a thin film of niobium material deposited onto the reticulated open cell substrate and covering substantially all of the interconnecting network to form a composite porous biomaterial creating a porous microstructure similar to that of natural cancellous bone.
A cancellous bone substitute and cell and tissue receptive material, including,
- a reticulated open cell substrate formed of a lightweight substantially rigid foam material having open spaced defined by an interconnecting network wherein said foam material has interconnected continuous channels, and
- a thin film of niobium alloy material deposited onto the reticulated open cell substrate and covering substantially all of the interconnecting network to form a composite porous biomaterial creating a porous microstructure similar to that of natural cancellous bone.
A composite material useful as a bone substitute for bone implants and cell and tissue reception, the structure of which is characterized by a non-metallic open cell substantially rigid foam ceramic substrate formed by an interconnected network having interconnected continuous channels to create a porous microstructure similar to that of cancellous bone and a metallic film substantially covering the interconnected network.
A composite material useful as a bone substitute for bone implants and cell and tissue reception, the structure of which is characterized by a non-metallic open cell substantially rigid foam substrate formed by an interconnected network having interconnected continuous channels to create a porous microstructure similar to that of cancellous bone and a tantalum film substantially covering the interconnected network.
A composite material useful as a bone substitute for bone implants and cell and tissue reception, the structure of which is characterized by a non-metallic open cell substantially rigid foam substrate formed by an interconnected network having interconnected continuous channels to create a porous microstructure similar to that of cancellous bone and a tantalum alloy film substantially covering the interconnected network.
A composite material useful as a bone substitute for bone implants and cell and tissue reception, the structure of which is characterized by a non-metallic open cell substantially rigid foam substrate formed by an interconnected network having interconnected continuous channels to create a porous microstructure similar to that of cancellous bone and a niobium film substantially covering the interconnected network.
A composite material useful as a bone substitute for bone implants and cell and tissue reception, the structure of which is characterized by a non-metallic open cell substantially rigid foam substrated formed by an interconnected network having interconnected continuous channels to create a porous microstructure similar to that of cancellous bone and a niobium alloy film substantially covering the interconnected network.
Dependencies are inferred from the claim text.