PATIENT-SPECIFIC ACETABULAR ALIGNMENT GUIDES
First Claim
1. An acetabular device comprising:
- a patient-specific acetabular alignment guide including;
a bone engagement surface having first and second portions, the first portion configured and shaped to be conforming and complementary to an acetabular rim surface of a specific patient and a second portion configured and shaped to be conforming and complementary to a periacetabular area of an acetabulum of the specific patient in accordance with a three-dimensional model of the acetabulum of the specific patient reconstructed pre-operatively from an image scan of the patient; and
a plurality of guiding formations extending through the second portion for guiding a plurality of alignment pins therethrough, wherein the plurality of guiding formations are arranged and configured relative to the periacetabular area based on a pre-operative plan for the patient.
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Accused Products
Abstract
An acetabular device includes a patient-specific acetabular alignment guide including a bone engagement surface. The bone engagement surface has a first portion configured and shaped to be conforming and complementary to an acetabular rim surface and a second portion configured and shaped to be conforming and complementary to a periacetabular area of an acetabulum of a patient. The acetabular alignment guide includes a plurality of guiding formations extending through the second portion for guiding a plurality of alignment pins therethrough. The bone engagement surface and the plurality of guiding formations are prepared from a three-dimensional model of the acetabulum of the specific patient reconstructed pre-operatively from a scan of the patient.
30 Citations
38 Claims
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1. An acetabular device comprising:
a patient-specific acetabular alignment guide including; a bone engagement surface having first and second portions, the first portion configured and shaped to be conforming and complementary to an acetabular rim surface of a specific patient and a second portion configured and shaped to be conforming and complementary to a periacetabular area of an acetabulum of the specific patient in accordance with a three-dimensional model of the acetabulum of the specific patient reconstructed pre-operatively from an image scan of the patient; and a plurality of guiding formations extending through the second portion for guiding a plurality of alignment pins therethrough, wherein the plurality of guiding formations are arranged and configured relative to the periacetabular area based on a pre-operative plan for the patient. - View Dependent Claims (30, 31, 32, 33, 34, 35)
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2-17. -17. (canceled)
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18. An acetabular device comprising:
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an annular acetabular guide including; a first surface and a second surface opposite to the first surface, the first surface being patient-specific and made to conform to an acetabular rim surface around an acetabulum of a patient in accordance with a three-dimensional image of the acetabulum of the patient; an inner surface configured to allow access to the acetabulum; and first and second guide formations configured to extend through the annular acetabular guide outside the acetabular rim surface, the first and second guide formations located at patient-specific locations around the acetabular rim surface; and a patient-specific adapter having first and second guiding openings configured to align with the first and second guide formations and having a quick-connection component for coupling to an acetabular instrument. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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36. An acetabular device comprising:
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a patient-specific acetabular alignment guide comprising; a first portion for aligning with an acetabular rim surface of a specific patient; a second portion for aligning with a periactabular area of the specific patient; an opening in the first portion having a patient-specific acetabular centering axis extending therethrough; and a plurality of guiding formations extending through the second portion for guiding a plurality of alignment pins therethrough, wherein the plurality of guiding formations are arranged and configured relative to the patient-specific centering axis based on a pre-operative plan for the patient; and a patient-specific alignment adapter couplable to an acetabular instrument so that the acetabular instrument is co-axial with the patient-specific centering axis, the patient-specific alignment adapter having a plurality of openings configured to co-axially align with the plurality of guiding formations, respectively. - View Dependent Claims (37, 38)
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Specification