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US 5,665,089 AGranted
Bone fixation system
OwnerDesmond Meiring Dall, Anthony William Miles +1inventors
InventorsDesmond Meiring Dall, Anthony William Miles, Hans Friedrich Schmotzer
Life of this patent
Estimating the term…
Abstract
A cerclage fixation component and a screw fixation component are engageable together to form a composite bone fixation device. The cerclage component may be a ladder plate with openings defined between bridges. The openings provide sockets for bosses of the screw fixation component.
Claims21
A bone fixation system comprising:
- cerclage cables;
- and
- an elongate unitary body including a top face, a bottom face, a spaced pair of elongate side portions which define an oppositely directed pair of lateral edges, a multiplicity of spaced-apart bridge portions connecting said side portions, said bridge portions each having a pair of oppositely directed side edges shaped so that a plurality of approximately rectangular openings are defined between opposed side edges of adjacent bridge portions, and pairs of through-bores for receiving said cerclage cables disposed therein;
- wherein said pairs of through-bores are located between adjacent approximately rectangular openings and extend through said bridge portions, each of said pairs of through-bores being positioned within said bridge portions such that crimping said side edges of each of said bridge portion substantially closes said pair through-bores to secure said cerclage cable disposed therein;
- wherein said elongate unitary body is adapted to be located with said bottom face overlying a bone and fixed thereto by passing said cerclage cable around the bone and through one of said pairs of through-bores, pulling the cable tight, and locking it in place by crimping the bridge through which said through-bores pass.
2 more elements
A method of bone fixation comprising the steps of:
- providing cerclage cable and an elongate unitary body having a top face, a bottom face and a spaced pair of elongate side portions which define an oppositely directed pair of lateral edges, a multiplicity of spaced-apart bridge portions connecting said side portions, said bridge portions each having a pair of oppositely directed side edges shaped so that approximately rectangular openings are defined between opposed side edges of adjacent bridge portions, pairs of through-bores for cerclage cables, wherein said pairs of through-bores extend through said bridge portions, each of said bridge portions being adapted to be crimped by a crimping tool which engages said pair of oppositely directed side edges thereof;
- locating said elongate unitary body so that said bottom face overlies a bone requiring fixation;
- passing a length of cerclage cable around the bone and through a said pair of through-bores;
- pulling the cable tight;
- and
- locking the cable in place by crimping the bridge through which said bores pass.
3 more elements
A bone fixation system comprising:
- cerclage cables;
- an elongate unitary body including a top face, a bottom face, a spaced pair of elongate side portions which define an oppositely directed pair of lateral edges, a multiplicity of spaced-apart bridge portions connecting said side portions, said bridge portions each having a pair of oppositely directed side edges shaped so that approximately rectangular openings are defined between opposed side edges of adjacent bridge portions, and pairs of through-bores for said cerclage cables;
- wherein said pairs of through-bores extend through said bridge portions, each of said bridge portions being adapted to be crimped by a crimping tool which engages said pair of oppositely directed side edges thereof;
- wherein said elongate unitary body is adapted to be located with said bottom face overlying a bone and fixed thereto by passing cerclage cable around the bone and through one of said pairs of through-bores, pulling the cable tight, and locking it in place by crimping the bridge through which said through-bores pass;
- screw fixation means positioned in said approximately rectangular opening for affixing said elongate unitary body to the bone, wherein said screw fixation means, once fixed, still allows said crimping tool to crimp said bridge portion and lock said cerclage cables.
2 more elements
Dependencies are inferred from the claim text.