Arched bridge staple
First Claim
1. A surgical bone staple comprising,a bridge member joined at each end to a pointed leg having a longitudinal axis, the legs pointing in the same general direction and being in a plane substantially coplanar with said bridge member,said bridge member being in the form of an arch when viewed both in said plane and perpendicular to said plane, having its concave surface facing said legs, the outer surface of the bridge member having a flattened planar section, substantially perpendicular to said longitudinal axes, which forms an impact head for driving the staple into a bone;
- a plurality of pointed teeth depending from said concave surface and generally parallel to said legs, and teeth being substantially shorter than said legs, wherein the points of the teeth lie essentially in a plane substantially perpendicular to the legs at their upper ends, andsaid arch having a rise of about 20% to about 50% of its span, whereby the center of said concave surface remains substantially spaced above a bone surface when said legs are driven fully into said bone.
4 Assignments
0 Petitions
Accused Products
Abstract
A bone staple for attaching tubular shaped soft tissue to bone, in which the transverse bridge of the staple has teeth on its underside to grip the tissue and is arch shaped so that the center of the bridge is above the bone surface when the staple legs are driven fully into a bone.
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Citations
7 Claims
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1. A surgical bone staple comprising,
a bridge member joined at each end to a pointed leg having a longitudinal axis, the legs pointing in the same general direction and being in a plane substantially coplanar with said bridge member, said bridge member being in the form of an arch when viewed both in said plane and perpendicular to said plane, having its concave surface facing said legs, the outer surface of the bridge member having a flattened planar section, substantially perpendicular to said longitudinal axes, which forms an impact head for driving the staple into a bone; -
a plurality of pointed teeth depending from said concave surface and generally parallel to said legs, and teeth being substantially shorter than said legs, wherein the points of the teeth lie essentially in a plane substantially perpendicular to the legs at their upper ends, and said arch having a rise of about 20% to about 50% of its span, whereby the center of said concave surface remains substantially spaced above a bone surface when said legs are driven fully into said bone. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification