ULNAR OSTEOTOMY PLATE INCLUDING INCREASED COMPRESSION
First Claim
1. An ulnar osteotomy plate, comprising:
- an elongated metallic plate having tapered ends, wherein the plate is concave in a direction perpendicular to a main axis of the plate; and
a plurality of holes along the main axis of the plate, comprising;
a substantially elliptical hole with a beveled interior edge located on a first side of the plate; and
a threaded hole located on a second side of the plate.
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Abstract
The present invention provides an ulnar osteotomy plate for use in an ulnar shortening osteotomy. The ulnar osteotomy plate includes an elongated metallic plate having tapered ends, wherein the plate is concave in a direction perpendicular to a main axis. The ulnar osteotomy plate further includes a plurality of holes along the main axis, wherein the plurality of holes includes a substantially elliptical hole with a beveled interior edge located on a first side of the plate and a threaded hole located on a second side of the plate. A first screw is inserted into one end of the elliptical hole and further into an ulna underneath the plate, wherein the first screw includes a beveled edge underneath a head. A second screw is inserted into the threaded hole and further into the ulna, wherein the second screw includes a portion of the shaft near a head to be threaded.
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Citations
18 Claims
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1. An ulnar osteotomy plate, comprising:
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an elongated metallic plate having tapered ends, wherein the plate is concave in a direction perpendicular to a main axis of the plate; and a plurality of holes along the main axis of the plate, comprising; a substantially elliptical hole with a beveled interior edge located on a first side of the plate; and a threaded hole located on a second side of the plate. - View Dependent Claims (2, 3, 4, 5)
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6. A system for performing an ulnar osteotomy, comprising:
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an elongated metallic plate having tapered ends, wherein the plate is concave in a direction perpendicular to a main axis of the plate; a plurality of holes along the main axis of the plate, comprising; a substantially elliptical hole with a beveled interior edge located on a first side of the plate; and a threaded hole located on a second side of the plate; a first screw for insertion into one end of the elliptical hole and further into an ulna underneath the plate, wherein the first screw includes a beveled edge underneath a head such that when the beveled edge of the first screw contacts the beveled interior edge of the elliptical hole, there results a force along the main axis towards the first side; and a second screw for insertion into the threaded hole and further into the ulna, wherein the second screw includes a portion of the shaft near a head to be threaded. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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14. A system for performing an ulnar osteotomy, comprising:
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an elongated metallic plate having tapered ends, wherein the plate is concave in a direction perpendicular to a main axis of the plate; a plurality of holes along the main axis of the plate, comprising; a substantially elliptical hole with a beveled interior edge located on a first side of the plate; and a threaded hole located on a second side of the plate; a first screw for insertion into one end of the elliptical hole and further into an ulna underneath the plate, wherein the first screw includes a beveled edge underneath a head such that when the beveled edge of the first screw contacts the beveled interior edge of the elliptical hole, there results a force along the main axis towards the first side; a second screw for insertion into the threaded hole and further into the ulna, wherein the second screw includes a portion of the shaft near a head to be threaded; and a cutting guide for guiding a cutting tool in cutting a portion of the ulna, wherein the cutting guide is coupled with the plate. - View Dependent Claims (15, 16, 17, 18)
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Specification