Patent ID: 7291152
Filing Date: 2007-11-06
Classification: A61B

Abstract:
1. A bone fixation device for retaining vertebra of a spinal column in a desired spatial relationship, comprising: a first member connectable to a first vertebra; a second member connectable to a second vertebra and interconnected with the first member, wherein the first and second members are movable relative to one another across a range of motion; at least one elongate rod interconnecting the first member to the second member; an adjustor member that transitions between a first state wherein the adjustor member is fixed relative to the first member and movable relative to the second member, and a second state wherein the adjustor member is fixed relative to the second member and movable relative to the first member, wherein the range of motion between the first member and second member spans a first, limited distance when the adjustor member is in the first state, and wherein the range of motion between the first member and second member spans a second, limited distance when the adjustor member is in the second state.