Trial prosthesis system
AssigneeBiomet Manufacturing, LLC
InventorsAusten Davenport, Kirk J. Bailey
Life of this patent
Estimating the term…
Abstract
According to various embodiments, a trial system (100) and instruments can be used to assist in confirming that a planned procedure is achieved. In various embodiments, the trial or provisional portions can include markings (110) on a trial or provisional portion to compare to one or more implanted members to ensure an planned position is achieved.
Claims20
A system for confirming a selected configuration of a first portion and a second portion of a prosthesis system, comprising:
- a trial femoral head member having an external surface configured to be at least partially received within an acetabular component;
- a patient-specific indicator viewable by a user on an exterior surface of the trial femoral head member;
- and
- a connection region configured to provisionally connect to a portion of a femoral member;
- wherein the patient-specific indicator comprises:
- a circular line indicating when a preferred single selected configuration of the femoral stem relative to the acetabular system is achieved;
- and
- a mark region disposed on either side of the circular line indicating when configurations of the femoral stem relative to the acetabular system are within a safe zone;
- wherein widths of the circular line and the mark region are selected based on pre-procedure planning for a specific patient.
A system for confirming a selected configuration of a first portion and a second portion of a prosthesis system, comprising:
- a femoral prosthesis including a stem portion and a femoral neck portion configured to be interconnected with a femur;
- an acetabular component having an articulating surface;
- and
- a trial femoral head member having an external surface configured to provisionally engage with the articulating surface, wherein the trial femoral head includes:
- an annular patient-specific indicator formed on an exterior surface of the trial femoral head member configured to be viewed relative to the acetabular component when the trial femoral head is provisionally engaging the acetabular component, wherein the annular patient-specific indicator provides an indication of a varus/valgus angle between the stem portion and the trial femoral head;
- wherein the annular patient-specific indicator is selected based on pre-procedure planning for a specific patient.
A method for confirming a selected configuration of a first portion and a second portion of a prosthesis system, comprising:
- obtaining a blank of a trial femoral head;
- evaluating a selected final configuration of a femur and a pelvis from pre-procedure data for a specific patient;
- and
- forming a patient-specific indicator on an exterior surface of the blank to align with a rim of an acetabular component when the selected final configuration of the femur and the pelvis is achieved based on the pre-procedure data for the specific patient;
- wherein the alignment of the patient-specific indicator with the rim confirms that the selected final configuration of the femur and the pelvis is achieved.
Dependencies are inferred from the claim text.