Universal Acetabular Guide And Associated Hardware
AssigneeBiomet Manufacturing, LLC
InventorChristopher EASH
Life of this patent
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Abstract
An orthopedic device includes a patient-specific acetabular guide that may be used for preparing an acetabulum of a patient to receive an acetabular implant. The acetabular guide has a body with an outer three-dimensional surface configured to match an acetabulum of a specific patient's hip joint designed from data of the patient's hip joint. The acetabular guide may further include a peripheral annular rim.
Claims29
An acetabular guide system for placing an alignment pin near an acetabulum, comprising:
- an acetabular guide, including:
- an exterior surface of the acetabular guide configured to have a geometry to substantially engage the acetabulum of a specific patient, and
- a central post extending from an interior surface of the acetabular guide;
- and
- a pin guide, including:
- a guide boss engageable and rotatable relative to the central post, and
- a guide body extending from the guide boss operable to move relative to the guide boss;
- wherein the guide body defines a bore to allow the alignment pin to pass through the guide bore and engage a region near the acetabulum.
An acetabular guide system for placing an alignment pin near an acetabulum, comprising:
- an alignment guide member having an exterior surface configured to match a specific patient;
- a central post extending along a guide axis from an interior surface of the alignment guide when the exterior surface is positioned in the specific patient's anatomy;
- an upper rim including at least first support portion and a second support portion;
- a pin guide having:
- a boss configured to interact with the central post to allow the boss to rotate about the central post,
- a guide body extending from the boss,
- a first arm connected directly to the guide body, and
- a second arm connected directly to the boss,
- wherein the first arm is moveable relative to the second arm;
- wherein the guide body is configured to be moveable relative to central post of the alignment guide;
- wherein the guide body defines a central bore through which an alignment pin is configured to be passed.
A method of placing a guide pin near an acetabulum with an acetabular guide system, comprising:
- positioning an exterior curved surface of an acetabular guide in an acetabulum, where the exterior curved surface has a geometry that substantially matches the acetabulum of a specific patient based on a geometry of the acetabulum of the specific patient;
- interconnecting a pin guide to a central post;
- rotating the pin guide about the central post to position a guide body of the pin guide relative to the central post.
A method of placing a guide pin near an acetabulum with an acetabular guide system, comprising:
- providing an exterior curved surface of an acetabular guide to have a geometry to substantially match the acetabulum of a specific patient based on a geometry of the acetabulum of the specific patient;
- providing a central post extending from an interior surface of the acetabular guide along a post long axis;
- and
- providing a pin guide configured to be connected to the central post to rotate about the central post to position a guide body of the pin guide relative to the central post.
Dependencies are inferred from the claim text.