Arthroplasty sizing gauge
First Claim
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1. A gauge for measuring bone contour of a bone for use in joint arthroplasty, said gauge comprising:
- a body including a body contact portion thereof for contact with the bone, said body contact portion comprises a hemispherical concave surface wherein the hemispherical concave surface is configured to contact bone during use of the gauge, wherein said body further includes a hemispherical concave surface located at the apex of the generally cylindrical portion; and
a probe, movably positionable with respect to said body and sized and shaped to fit within the generally cylindrical portion of the body, said probe including a probe contact portion such that when the probe is received within the generally cylindrical portion, the probe contact portion contacts an outer contour of the bone, the relative position of said probe with respect to said body being indicative of a contour of the bone;
wherein the relative position of the probe with respect to the body is used to determine a particular size of a prosthesis appropriate for the measured contour of the bone.
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Abstract
A gauge (10) for measuring bone contour (12) of a bone(4) for use in joint arthroplasty is provided. The gauge (10) includes a body (14) and a probe (16). The body (14) has a body contact portion of the body (14) for contact with the bone (4). The probe (16) is movably positional with respect to the body (14). The probe (16) includes a probe contact portion of the probe (16) for contact with the bone (4). The relative position of the probe (16) with respect to the body (14) is indicative of the bone contour (12) of the bone (4).
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Citations
14 Claims
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1. A gauge for measuring bone contour of a bone for use in joint arthroplasty, said gauge comprising:
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a body including a body contact portion thereof for contact with the bone, said body contact portion comprises a hemispherical concave surface wherein the hemispherical concave surface is configured to contact bone during use of the gauge, wherein said body further includes a hemispherical concave surface located at the apex of the generally cylindrical portion; and a probe, movably positionable with respect to said body and sized and shaped to fit within the generally cylindrical portion of the body, said probe including a probe contact portion such that when the probe is received within the generally cylindrical portion, the probe contact portion contacts an outer contour of the bone, the relative position of said probe with respect to said body being indicative of a contour of the bone;
wherein the relative position of the probe with respect to the body is used to determine a particular size of a prosthesis appropriate for the measured contour of the bone. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A kit for use in selecting one of a plurality of joint implants for use in joint arthroplasty on a bone, said kit comprising:
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a first gauge, said first gauge including a first gauge body having a body contact portion thereof for contact with the bone, said body contact portion comprises a concave surface, wherein said first gauge body includes a generally cylindrical portion located at the apex of the concave surface, and a first gauge probe, movably positional with respect to the body and sized and shaped to fit within the generally cylindrical portion of the first gauge body, the first gauge probe including a probe contact portion thereof for contact with an outer contour of the bone, the relative position of the first gauge probe with respect to the first gauge body being indicative of the bone contour of the bone;
wherein the relative position of the probe with respect to the body is used to determine a particular size of a prosthesis appropriate for the measured contour of the bone; anda second gauge, said second gauge including a second gauge body having a body contact portion thereof for contact with the bone, said body contact portion comprises a concave surface, wherein said body includes a generally cylindrical portion located at the apex of the concave surface, and a second gauge probe, movably positional with respect to the second gauge body and sized and shaped to fit within the generally cylindrical portion of the second gauge body, the second gauge probe including a probe contact portion thereof for contact with an outer contour of the bone, the relative position of the second gauge probe with respect to the second gauge body being indicative of the bone contour of the bone;
wherein the relative position of the probe with respect to the body is used to determine a particular size of a prosthesis appropriate for the measured contour of the bone. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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Specification