Low profile patient specific cutting blocks for a knee joint
First Claim
1. A low profile patient specific cutting block for a knee, comprising:
- a plurality of bone interfacing portions configured to overlie portions of an end of a bone, wherein a first of the bone interfacing portions extends in an anterior-posterior direction and is adapted to overlie a proximal end portion of the bone, and wherein a second of the interfacing portions extends in a superior-inferior direction and is adapted to overlie an anterior portion of the bone;
a cutting guide extending in a medial-lateral direction and oriented in a fixed position relative to the bone interfacing portions to guide a cutting tool at a fixed angle relative to the bone interfacing portions; and
an anteriorly-facing exterior surface defining an index marking positioned along a mid-portion of the cutting block and extending in the superior-inferior direction, the index marking based on patient specific data.
1 Assignment
0 Petitions
Accused Products
Abstract
A low profile patient specific cutting block for a knee includes a plurality of bone interfacing portions and a cutting slot. The plurality of bone interfacing portions are configured to overlie portions of an end of a bone. The bone interfacing portions each have a surface that is generally a negative of the portion of the bone that the respective bone interfacing portion overlies. The bone interfacing portions are angularly offset from each other such that a first of the bone interfacing portions overlies an anterior portion of the bone, and a second of the bone interfacing portions overlies a portion of bone generally perpendicular to the anterior portion of bone. The cutting slot is oriented in a fixed position relative to the bone interfacing portions such that the cutting slot directs a cutting tool at a fixed angle and at a fixed depth relative to the bone interfacing portions.
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Citations
25 Claims
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1. A low profile patient specific cutting block for a knee, comprising:
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a plurality of bone interfacing portions configured to overlie portions of an end of a bone, wherein a first of the bone interfacing portions extends in an anterior-posterior direction and is adapted to overlie a proximal end portion of the bone, and wherein a second of the interfacing portions extends in a superior-inferior direction and is adapted to overlie an anterior portion of the bone; a cutting guide extending in a medial-lateral direction and oriented in a fixed position relative to the bone interfacing portions to guide a cutting tool at a fixed angle relative to the bone interfacing portions; and an anteriorly-facing exterior surface defining an index marking positioned along a mid-portion of the cutting block and extending in the superior-inferior direction, the index marking based on patient specific data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A low profile patient specific cutting block for a knee, comprising:
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a plurality of bone interfacing portions configured to overlie portions of an end of a bone, wherein a first of the bone interfacing portions extends in an anterior-posterior direction and is adapted to overlie a proximal end portion of the bone, and wherein a second of the interfacing portions extends in a superior-inferior direction and is adapted to overlie an anterior portion of the bone; cutting guide surfaces extending in a medial-lateral direction and oriented in a fixed position relative to the bone interfacing portions for guiding a cutting tool at a fixed angle relative to the bone interfacing portions; and an anteriorly-facing exterior surface defining an index marking positioned along a mid-portion of the cutting block and extending in the superior-inferior direction, the index marking based on patient specific data. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A low profile patient specific cutting block for a knee, comprising:
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a plurality of bone interfacing portions configured to overlie portions of an end of a bone, the bone interfacing portions angularly offset from each other, wherein a first of the bone interfacing portions extends in an anterior-posterior direction and is adapted to overlie a proximal end portion of the bone, and wherein a second of the interfacing portions extends in a superior-inferior direction and is adapted to overlie an anterior portion of the bone; a cutting guide extending in a medial-lateral direction and oriented in a fixed position relative to the bone interfacing portions to guide a cutting tool at a fixed angle relative to the bone interfacing portions; and an anteriorly-facing exterior surface defining an index marking positioned along a mid-portion of the cutting block and extending in the superior-inferior direction, the index marking comprising a groove or score extending into the anteriorly-facing exterior surface and orientated and positioned on the cutting block based on patient specific data derived from imaging data; and wherein the bone interfacing portions each have a surface that is generally a negative of the portion of the bone that the bone interfacing portion is configured to overlie, and wherein a first of the bone interfacing portions extends in a first direction and a second of the bone interfacing portions extends in a second direction generally perpendicular to the first direction. - View Dependent Claims (23, 24, 25)
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Specification