Endosteal fixation stud and system
First Claim
1. An endosteal fixation stud comprising, a cylindrical body that has a diameter to closely fit in a cortex end of a bone tunnel that is formed appropriately in a bone mass, which cylindrical body from a forward end thereof is slotted longitudinally, splitting said forward end into two segments;
- and an arcuate hook means is secured to an end of one of said two segments extending outwardly and rearwardly therefrom, an outer edge of which said arcuate hook means is above the plane of said cylindrical body and can be flexed inwardly to below said plane when said two segments are flexed together.
3 Assignments
0 Petitions
Accused Products
Abstract
An endosteal fixation for mounting a prosthetic or soft tissue graft or combination thereof, under tension at a cortex end of a bone tunnel and process for its use. The endosteal fixation stud includes a cylindrical body that is preferably manufactured from a somewhat resilient material, and is suitable for implantation in a human body. The cylindrical body is stepped outwardly, proximate to a rear end, into a bridge that has spaced rearwardly extending arms wherebetween the graft is secured. The cylindrical body forward end is split into equal parallel sections that can be flexed together, one of which sections includes a hook that extends and rearwardly, that will align with the cylindrical body surface when the two cylindrical body sections are compressed together. The endosteal fixation stud can be arranged to be pushed or pulled through a bone tunnel.
A single endosteal fixation stud is utilized to mount a graft and to the cortex at a bone tunnel end, the graft extending therefrom through the tunnel and out the opposite bone tunnel end, whereat it is bent and secured under tension, as with a staple, to the cortex surface adjacent to that bone tunnel end.
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Citations
26 Claims
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1. An endosteal fixation stud comprising, a cylindrical body that has a diameter to closely fit in a cortex end of a bone tunnel that is formed appropriately in a bone mass, which cylindrical body from a forward end thereof is slotted longitudinally, splitting said forward end into two segments;
- and an arcuate hook means is secured to an end of one of said two segments extending outwardly and rearwardly therefrom, an outer edge of which said arcuate hook means is above the plane of said cylindrical body and can be flexed inwardly to below said plane when said two segments are flexed together.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A process for mounting a natural, prosthetic or soft tissue graft in tension in a prepared bone tunnel consisting of the steps of, attaching an end of a graft to an endosteal fixation stud, which said endosteal fixation stud includes, with a cylindrical body, arrangements for directly securing a forward end thereof to a bone cortex and for mounting a graft to its opposite rear end;
- and forming a bone tunnel between femoral and tibial cortex surfaces, where, at least one said bone tunnel cortex end has a diameter to accommodate said endosteal fixation stud forward end fitted therein to connect to said bone cortex.
- View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
Specification