Expandable bone implant
First Claim
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1. A bone implant comprising:
- a coronal member formed of a relatively rigid coronal member material and defining an apical end surface;
an apical member formed of a relatively rigid apical member material and defining a ledge, the apical member configured to adjustably engage the coronal member to define a space between the apical end surface and the ledge; and
a porous member formed of a relatively flexible porous member material that is at least partially porous, the porous member being removably positionable between the apical end surface of the coronal member and the ledge of the apical member, such that adjusting the coronal member and the apical member toward each other longitudinally compresses the porous member and expands the porous member generally radially outward.
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Abstract
An expendable bone implant has a first member with a coronal end portion configured for supporting a prosthesis. A second member is at least partially porous, engages the first member, and is configured to expand outwardly upon a longitudinal force being applied to at least one of the first and second members. This anchors the implant in bone before mastication forces are applied to the implant.
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Citations
27 Claims
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1. A bone implant comprising:
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a coronal member formed of a relatively rigid coronal member material and defining an apical end surface; an apical member formed of a relatively rigid apical member material and defining a ledge, the apical member configured to adjustably engage the coronal member to define a space between the apical end surface and the ledge; and a porous member formed of a relatively flexible porous member material that is at least partially porous, the porous member being removably positionable between the apical end surface of the coronal member and the ledge of the apical member, such that adjusting the coronal member and the apical member toward each other longitudinally compresses the porous member and expands the porous member generally radially outward. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A dental bone implant for use with a bore formed in a dentition site, the dental bone implant comprising:
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a coronal member formed of a relatively rigid coronal member material, the coronal member including an apical end surface; an apical member formed of a relatively rigid apical member material and defining a ledge, wherein a space is defined between the apical end surface of the coronal member and the ledge of the apical member; a core extending between the coronal member and the apical member, the core being configured to adjustably engage at least one of the coronal member and the apical member; and a porous member formed of a relatively flexible porous member material that is at least partially porous, the porous member having a generally hollow, cylindrical shape configured to receive the core, the porous member being disposed in the space between the apical end surface of the coronal member and the ledge of the apical member; wherein the core is adjustable along a longitudinal direction to longitudinally compress the porous member to expand the porous member generally radially outward and decrease an overall longitudinal length of the implant. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A bone implant comprising:
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a coronal member formed of a relatively rigid coronal member material and defining an apical end surface, the coronal member including an apically accessible bore; an apical member formed of a relatively rigid apical member material and defining a ledge, the apical member configured to adjustably engage the coronal member to define a space between the apical end surface and the ledge, the apical member including a core configured to be apically received by the bore so as to define a core receiving zone disposed between the core and the coronal member; and a porous member formed of a relatively flexible porous member material that is at least partially porous, the porous member being disposed between the apical end surface of the coronal member and the ledge of the apical member, wherein adjusting the coronal member and the apical member toward each other longitudinally compresses the porous member and expands the porous member generally radially outward, wherein the porous member has a cylindrical profile defining a longitudinal cavity configured to receive the core. - View Dependent Claims (24, 25, 26, 27)
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Specification