Surgical instrument
First Claim
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1. An adjustable spacer instrument for use in a knee arthroplasty procedure, comprising:
- a first member having a substantially planar upper surface;
a second member having a substantially planar lower surface; and
an angular adjustment mechanism interposed between the first member and the second member, the angular adjustment mechanism being operable to adjust the degree of tilt between the upper surface and the lower surface and including a releasable lock which can maintain the degree of tilt,wherein the adjustment mechanism comprises a plurality of proud features and a plurality of regions of differing height positioned to engage the proud features in a plurality of different configurations each corresponding to a different degree of tilt between the upper surface and the lower surface.
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Abstract
An adjustable spacer instrument and method of use in a knee arthroplasty procedure are described. The instrument comprises a first member having a substantially planar upper surface and a second member having a substantially planar lower surface. An angular adjustment mechanism is interposed between the first and second members and is operable to adjust the degree of tilt between the upper surface and the lower surface and includes a releasable lock which can maintain the degree of tilt.
56 Citations
20 Claims
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1. An adjustable spacer instrument for use in a knee arthroplasty procedure, comprising:
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a first member having a substantially planar upper surface; a second member having a substantially planar lower surface; and an angular adjustment mechanism interposed between the first member and the second member, the angular adjustment mechanism being operable to adjust the degree of tilt between the upper surface and the lower surface and including a releasable lock which can maintain the degree of tilt, wherein the adjustment mechanism comprises a plurality of proud features and a plurality of regions of differing height positioned to engage the proud features in a plurality of different configurations each corresponding to a different degree of tilt between the upper surface and the lower surface. - 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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Specification