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US 2003/0216780 A1Published application
Two piece cross-pin graft fixation
AssigneeLinvatec Corporation
InventorsSteven E. Fitts, Wamis Singhatat, Drew Powell Amery
Life of this patent
Estimating the term…
Abstract
A two piece graft fixation arrangement includes a graft block engageable with a graft and a transverse member engageable with the graft block to fix the graft block in a bone tunnel.
Claims57
A graft retaining system for retaining a graft in a bone tunnel comprising:
- a graft block having a proximal end, a distal end, and a longitudinal axis extending therebetween, said block being sized to fit within said bone tunnel;
- an intermediate connector connecting a predetermined portion of said graft and a predetermined portion of said graft block;
- and
- means for attaching said graft block adjacent said bone tunnel at a predetermined point along the length of said tunnel, said means for attaching being situated transverse to the axis of said bone tunnel.
1 more element
A graft retaining system for retaining a graft in a bone tunnel comprising:
- a graft block having a proximal end, a distal end, and a longitudinal axis extending therebetween, said block being sized to fit within said bone tunnel;
- tunnel attachment means for attaching said graft block adjacent said bone tunnel at a predetermined point along the length of said tunnel, said tunnel attachment means being situated transverse to the axis of said bone tunnel, said tunnel attachment means being located proximally of said distal end of said graft block;
- and
- graft attachment means for connecting said graft to said graft block at a position distal to said tunnel attachment means such that tensile forces on said graft result in compressive forces on said graft block between said graft attachment means and said tunnel attachment means.
1 more element
A graft retaining system for retaining a graft in a bone tunnel comprising:
- a graft block having a core, a loop shaped intermediate connector supported on said core, and a cover matingly engageable with said core to cover a portion of said core and said intermediate connector to retain said intermediate connector on said core, and a transverse opening formed through said core and said loop of said intermediate connector such that said intermediate connector loops around said transverse opening;
- a portion of said intermediate connector extending below said core and said cover to form a graft receiving opening;
- and
- a cross-pin engageable with said transverse opening to attach said graft block in said bone tunnel.
1 more element
A graft retaining system for retaining a graft in a bone tunnel comprising:
- a graft block having a generally cylindrical body having a proximal end, a distal end, and a longitudinal axis extending therebetween, said block being sized to fit within said bone tunnel;
- a transverse pin engageable with said graft block to attach said graft block within said bone tunnel at a predetermined point along said length of said tunnel;
- and
- a flexible loop adapted to engage both said graft block and said graft.
1 more element
A graft retaining system for retaining a graft in a bone tunnel comprising:
- a graft block having a generally cylindrical body having a proximal end, a distal end, and a longitudinal axis extending therebetween, said block being sized to fit within said bone tunnel;
- a transverse pin engageable with said graft block at a predetermined engagement portion on said graft block to attach said graft block within said bone tunnel at a predetermined point along said length of said tunnel;
- and
- at least one channel formed on said graft block distal of said predetermined engagement portion for receiving a portion of said graft such that tensile loading of said graft results in compressive loading of said graft block between said predetermined engagement portion and said transverse pin.
1 more element
A graft retaining system for retaining a graft in a bone tunnel comprising:
- a graft block having a generally cylindrical body having a proximal end, a distal end, a longitudinal axis extending therebetween, and a pair of opposed longitudinal side surfaces, said block being sized to fit within said bone tunnel;
- a transverse pin engageable with said graft block at a predetermined engagement portion on said graft block to attach said graft block within said bone tunnel at a predetermined point along said length of said tunnel;
- a flexible loop adapted to engage both said graft block and said graft;
- and
- at least one channel formed on said graft block distal of said predetermined engagement portion for receiving a portion of said flexible loop such that tensile loading of said graft results in compressive loading of said graft block between said predetermined engagement portion and said transverse pin.
2 more elements
A cross-pin comprising:
- a distal portion having an axis, a distal end and a proximal end;
- a proximal cylindrical portion having an axis, a distal end and a proximal end, aligned with said distal portion, said proximal portion comprising a threaded exterior surface and a driving means;
- a junction interposed between said distal and proximal portions, said junction adapted to enable said proximal portion to rotate about its axis relative to said distal portion to thereby move said proximal portion rotationally and distally while pushing said distal portion distally.
A method for securing a graft in a bone tunnel comprising the steps of:
- providing a graft block having a body and an intermediate connector attached to and extending from said body;
- attaching a graft to said graft block by connecting it to said intermediate connector;
- providing a transverse member for being received by said graft block;
- fitting said graft block with attached graft into said bone tunnel;
- and
- engaging said transverse member with said graft block transversely across said bone tunnel to fix the location of said graft block within said bone tunnel.
3 more elements
Dependencies are inferred from the claim text.