Granted Patent B2

US 12,383,415 · App. 18/458,322 · Granted Aug 12, 2025

Inventors: Michel Hassler (Saint Ismier, FR); Gilles Walch (Lyons, FR); Pierric Deransart (Saint Martin d'uriage, FR); Lucile Ferrand (Montbonnot, FR); Pascal Boileau (Nice, FR)

Assignee: TORNIER SAS

A61F2/4684A61B17/1615A61B17/1684A61B17/885A61B90/92A61F2/4014A61B2090/062A61F2002/30616

Abstract

Claims (15)

1. A method of repairing a joint, the method comprising:

exposing a first bone of the joint;

resecting an end portion of the first bone to form a resected end defining a resection plane;

forming a concavity in the resected end portion of the first bone using a shaping tool, the concavity extending at least through a full hemispherical arc;

selecting a diameter of the prosthesis to be implanted; and

implanting a prosthesis having the selected diameter in the concavity.

2. The method of claim 1 , wherein forming the concavity comprises compacting the resected end portion of the first bone with a plurality of compactors having gradually increasing diameters.

3. The method of claim 1 , wherein forming the cavity comprises shaping the resected end portion of the first bone until a demarcation line on the shaping tool is parallel with the resection plane.

4. The method of claim 3 , wherein the demarcation line is at a position on the shaping tool that corresponds to a diameter of the prosthesis minus a predicted projection height of the prosthesis above the resected end that promotes adequate tensioning of the joint.

5. The method of claim 1 , wherein forming the concavity comprises reaming the resected end portion of the first bone with a plurality of reamers having gradually increasing diameters.

6. The method of claim 1 , wherein forming the concavity comprises iteratively compacting and reaming the resected end portion of the first bone.

7. The method of claim 1 , further comprising selecting a test prosthesis based on a final shaping tool used to form the concavity.

8. The method of claim 7 , further comprising selecting the test prosthesis having a same color as the final shaping tool.

9. The method of claim 7 , further comprising introducing the test prosthesis into the concavity.

10. The method of claim 9 , further comprising confirming the concavity is formed to a sufficient depth using depth lines on the test prosthesis.

Assignments (1)

Continuity (4)

References Cited (400)