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US 2024/0238103 A1Published application
Femoral trial head
AssigneeZimmer, Inc.
InventorTory Leonard
Life of this patent
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Abstract
A trial head may include a proximal, a distal side, a plurality of tabs positioned at the distal side and a recess. The plurality of tabs collectively form an opening. The recess can communicate with the opening. The recess can be formed by at least a first wall portion having a taper and a second wall portion having a geometry that differs from the first wall portion. The second wall portion can be proximal to the first wall portion.
Claims20
A trial head for a hip arthroplasty comprising:
- a proximal side;
- a distal side;
- a plurality of tabs positioned at the distal side, wherein the plurality of tabs collectively form an opening;
- and
- a recess communicating with the opening, wherein the recess is formed by at least a first wall portion having a taper and a second wall portion having a geometry that differs from the first wall portion, and wherein the second wall portion is proximal to the first wall portion.
2 more elements
An orthopedic system for a hip arthroplasty comprising:
- a trial femoral component that includes a neck having a taper, wherein the trial femoral component represents a geometry of a femoral implant;
- a plurality of trial heads of different external configurations, wherein each of the plurality of trial heads is configured to couple with the trial femoral component, and wherein each of the plurality of trial heads includes:
- a proximal side;
- a distal side;
- a plurality of tabs positioned at the distal side, wherein the plurality of tabs collectively form an opening, wherein an inner chamfered surface of each of the plurality of tabs is configured to extend distal of a base of the taper when the trial femoral component is coupled with a respective one of the plurality of trial heads;
- and
- a recess communicating with the opening and configured to receive the taper upon insertion of the taper past the inner chamfered surface of each of the plurality of tabs.
4 more elements
A method of trialing for a hip arthroplasty comprising:
- providing a trial femoral component or femoral prosthesis with a neck having a taper;
- preparing a femur to receive the trial femoral component or femoral prosthesis;
- inserting the trial femoral component or femoral prosthesis in the femur;
- coupling a first of a plurality of trial heads with different external configurations to the trial femoral component or femoral prosthesis by receiving the taper within a recess and capturing the taper with a plurality of tabs of the first of the plurality of trial heads, wherein the plurality of tabs are configured to flex to form an interference fit with the taper;
- and
- performing a trial reduction with the first of the plurality of trial heads coupled to the trial femoral component or femoral prosthesis.
3 more elements
Dependencies are inferred from the claim text.