Alignment guides with patient-specific anchoring elements
First Claim
Patent Images
1. An orthopedic device for joint arthroplasty comprising:
- an alignment guide mountable on a bone of a patient during joint arthroplasty; and
a plurality of patient-specific anchoring elements extending from an inner surface of the alignment guide and having a patient-specific length relative to an outer bone surface of the bone of the patient, the patient-specific length is a custom length based on a multi-dimensional image of the patient'"'"'s bone surface and soft tissue covering the bone surface;
wherein the inner surface is a three-dimensional patient-specific surface including a customized shape based on a multi-dimensional image of an outer cartilage surface of the bone of the patient and configured to nestingly mate to and be mounted on the outer cartilage surface of the bone of the patient in only one position.
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Abstract
An orthopedic device for joint arthroplasty includes an alignment guide and a number of patient-specific anchoring elements. The alignment guide can be mounted on a bone of a patient during joint arthroplasty. The patient-specific anchoring elements extend from an inner surface of the alignment guide and have a patient-specific length relative to an outer bone surface of the bone of the patient.
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Citations
28 Claims
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1. An orthopedic device for joint arthroplasty comprising:
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an alignment guide mountable on a bone of a patient during joint arthroplasty; and a plurality of patient-specific anchoring elements extending from an inner surface of the alignment guide and having a patient-specific length relative to an outer bone surface of the bone of the patient, the patient-specific length is a custom length based on a multi-dimensional image of the patient'"'"'s bone surface and soft tissue covering the bone surface; wherein the inner surface is a three-dimensional patient-specific surface including a customized shape based on a multi-dimensional image of an outer cartilage surface of the bone of the patient and configured to nestingly mate to and be mounted on the outer cartilage surface of the bone of the patient in only one position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An orthopedic device for joint arthroplasty comprising:
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an alignment guide including an inner surface configured to be mounted on an outer articular cartilage surface of an underlying bone of the patient; and a first anchoring element extending from the inner surface, the first anchoring element including a first portion designed to penetrate through articular cartilage and a second portion designed to penetrate through an outer surface of the bone underlying the articular cartilage for anchoring the alignment guide on the bone, the first anchoring element including a shoulder between the first and second portions, the shoulder designed to abut on the outer surface of the bone; wherein the inner surface is a three-dimensional patient-specific surface including a customized shape based on a multi-dimensional image of an outer cartilage surface of the bone of the patient and configured to nestingly mate to and be mounted on the outer cartilage surface of the bone of the patient in only one position. - View Dependent Claims (22, 23)
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24. An orthopedic device for joint arthroplasty of a patient comprising:
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an alignment guide including an inner anatomy-engaging surface configured to be mounted on an outer articular cartilage surface of an underlying bone of the patient; a plurality of patient-specific anchoring elements extending from the inner anatomy-engaging surface, each one of the plurality of patient-specific anchoring elements including; a cartilage anchoring portion including a first end coupled to the inner anatomy-engaging surface, a second end opposite to the first end, and a patient-specific length that is about equal to a thickness of the patient'"'"'s articular cartilage at an area where the alignment guide is to be mounted, the patient-specific length is a custom length based on the thickness of the patient'"'"'s articular cartilage measured from a multi-dimensional image of the patient'"'"'s articular cartilage; a patient-specific surface at the second end, the patient-specific surface configured to be complementary to and closely mate with an outer bone surface of the underlying bone, the patient-specific surface is a custom surface based on a multi-dimensional image of the patient'"'"'s outer bone surface; a bone anchoring portion extending from the second end; and a shoulder between the second end and the bone-anchoring portion, the shoulder is patient-specific and customized to the patient based on a multi-dimensional image of the patient'"'"'s outer bone surface, and configured to abut and closely mate with the outer surface of the underlying bone. - View Dependent Claims (25, 26, 27, 28)
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Specification