Patient-specific acetabular guide for anterior approach
First Claim
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1. An acetabular guide system, comprising:
- an acetabular guide, including;
an exterior surface configured to have a geometry to substantially engage the acetabulum of a specific patient;
a central post extending from an interior surface of the acetabular guide;
a second post extending from the interior surface of the acetabular guide substantially parallel to but offset relative to the central post along a radial direction; and
a guide inserter having an elongated shaft defining an internal bore;
wherein the internal bore of the elongated shaft is configured to engage an exterior surface of the central post to move the acetabular guide into the acetabulum.
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Abstract
An orthopedic device includes a patient-specific acetabular guide that can 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 can further include a peripheral annular rim.
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Citations
20 Claims
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1. An acetabular guide system, comprising:
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an acetabular guide, including; an exterior surface configured to have a geometry to substantially engage the acetabulum of a specific patient; a central post extending from an interior surface of the acetabular guide; a second post extending from the interior surface of the acetabular guide substantially parallel to but offset relative to the central post along a radial direction; and a guide inserter having an elongated shaft defining an internal bore;
wherein the internal bore of the elongated shaft is configured to engage an exterior surface of the central post to move the acetabular guide into the acetabulum. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 17)
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13. An acetabular guide system, comprising:
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an acetabular guide, including; an exterior curved surface configured with a geometry to substantially match the acetabulum of a specific patient based on a geometry of the acetabulum of the specific patient; a central post extending from an interior surface of the acetabular guide; a second post extending from the interior surface of the acetabular guide substantially parallel to but offset relative to the central post along a radial direction; and a guide inserter having an elongated shaft defining an internal bore, wherein the guide inserter includes a first finger to engage the second post when the central post is engaged within the internal bore of the guide inserter;
wherein the internal bore of the elongated shaft is configured to engage an exterior surface of the central post to move the acetabular guide into the acetabulum and the guide inserter has rotational and axial control of the acetabular guide to position the acetabular guide within the acetabulum. - View Dependent Claims (14, 15, 16)
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18. An acetabular guide system, comprising:
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an acetabular guide, including; an exterior curved surface; a central post extending from an interior surface of the acetabular guide; a second post extending from the interior surface of the acetabular guide substantially parallel to but offset relative to the central post along a radial direction; a pin guide defining a bore extending from the exterior curved surface; a guide inserter having an elongated shaft defining an internal bore, wherein the guide inserter configured to engage at least one of the central post and the second post; a pin guide insert configured to couple with the pin guide and defining an insert bore; a guide line that is defined by a first point on a first longitudinal axis through the central post and a second point on a second longitudinal axis through the pin guide; wherein the internal bore of the elongated shaft is configured to engage an exterior surface of the central post to move the acetabular guide into the acetabulum and the guide inserter has rotational and axial control of the acetabular guide to position the acetabular guide within the acetabulum and align the insert bore along the guide line relative to an inferior ischial spine of the patient. - View Dependent Claims (19, 20)
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Specification