Device for creating a bone implant
AssigneeStryker European Holdings I, LLC
InventorsKai-Hinrich Olms, Roman Nassut
Life of this patent
Estimating the term…
Abstract
An osteonsynthesis implant has a plate-shaped base component having at least one hole, at least one axially extending rod-shaped tie rod having a first and a second end and at least one threaded component. The first end of the rod-shaped tie rod can be placed in the hole of the base component. The hole and the first end of the tie rod are formed such that the first end of the tie rod can be locked axially in the hole and is pivoted about an axis of the hole while locked to the plate. The second end of the tie rod is provided with a thread and the threaded component can be screwed onto the thread of the first tie rod. The tie rod can perform a pivoting movement of up to about 20° around the hole axis while locked in the plate hole.
Claims16
An osteosynthesis implant comprising:
- a plate-shaped base component having at least a first hole;
- a first rod-shaped tie rod having a first and a second end;
- a first threaded component;
- where the first rod-shaped tie rod first end can be placed in the first hole;
- where the first hole and the first end of the first tie rod are formed such that the first end of the first tie rod can be locked in the first hole;
- where the first hole has a single deformable lip;
- where the first end of the first tie rod is provided with a thread;
- where the first thread component of the first tie rod produces an interference fit with the single deformable lip of the first hole at least partially deforming the single deformable lip so that the lip has deformed sections;
- where the second end of the first tie rod is provided with a second thread;
- and
- where the first thread component can be screwed onto the second thread of the first tie rod.
An osteosynthesis implant comprising:
- a bone plate having a first hole therethrough extending from a bone contacting surface of the plate to an outwardly facing surface of the plate, a single deformable lip extending around a circumference of an inner wall of the bone;
- a tie rod having a threaded first end and a threaded second end, the first threaded end producing an interface between the first threaded section and the lip whereby deforming the lip;
- a threaded component engaging the threaded second end of the tie rod;
- and
- wherein the engagement of the tie-rod threaded first end and the deformable lip deforms the lip of the bone plate bore to lock the tie rod to the bone plate in the axial direction.
An apparatus configured to fasten an osteosynthesis implant, comprising:
- a base plate element having a first attachment opening, the first attachment opening including an inner wall having a deformable ledge;
- a first anchor bolt having an upper and lower end, the upper and lower end having a threaded portion;
- and
- a first threaded fastening bolt, the threaded fastening bolt configured to threadably engage with the threaded portion of the first anchor bolt upper end;
- wherein the lower end of the first anchor bolt and the first attachment opening of the base plate element are configured to engage and fasten with each other, and the deformable ledge is configured to be deformed by the threaded portion at the lower end of the first anchor bolt so as to form a mechanical connection between the base plate element and the first anchor bolt.
Dependencies are inferred from the claim text.