Tissue scaffold anchor for cartilage repair
AssigneeEthicon, Inc.
InventorsDavid W. Overaker, Joseph H. Contiliano
Life of this patent
Estimating the term…
Abstract
A device for attaching a tissue replacement scaffold to a bone has a platform positionable in substantially parallel relationship to the bone for retaining the tissue scaffold proximate to the bone. A post extends from the platform and is insertable into a hole formed in the bone. One or more ribs extend from a side surface of the post along a portion of its length. The ribs have an increasing cross-sectional area to establish an increasing interference fit relative to the hole in the bone tissue. The ribs have a sharp edge that grips the sides of the hole in the bone such that the ribs restrict rotation or withdrawal of the device.
Claims20
A device for attaching a tissue scaffold to bone tissue, comprising:
- a platform positionable in substantially parallel relationship to the bone tissue for retaining the tissue scaffold proximate to the bone tissue;
- a post extending from the platform, said post insertable into a hole formed in the bone tissue;
- at least one rib extending from a surface of said post along a portion of the length of said post from a first point distal to said platform to a second point intermediate said first point and said platform, said at least one rib having a cross-sectional area that increases along the length of said rib in the direction from said first point to said second point, said at least one rib establishing an interference fit relative to the hole in the bone tissue to prevent rotation of said device relative to the bone tissue.
A device for attaching a tissue scaffold to bone tissue, comprising:
- attaching means for attaching the scaffold to said device;
- retaining means coupled to said attaching means for retaining said attaching means in proximity to the bone tissue, said retaining means inserting into a hole formed in the bone tissue, said retaining means including gripping means extending from the outer periphery thereof for gripping the bone tissue proximate the hole to restrain said device from rotating or pulling away from the bone tissue.
Dependencies are inferred from the claim text.