Adjustable rod assembly
AssigneeDePuy Synthes Products, Inc.
InventorsRoberto Khatchadourian, Edward McShane, David Rathbun
Life of this patent
Estimating the term…
Abstract
An adjustable rod for spinal corrective surgery is provided that includes a first elongate member and a second elongate member, each having rod portions couplable to one or more bone connecting elements and expansion portions slidably moveable with respect to one another. A plurality of holes in each expansion portion are alignable with one another to choose the length of the adjustable rod and a locking element is inserted through a pair of aligned holes to couple the first and second elongate members and secure or fix the length of the expandable rod.
Claims20
An adjustable rod assembly for correcting or straightening a human spine, the adjustable rod assembly comprising:
- at least one bone connecting element for attaching to the rib cage, pelvis or spine of a patient;
- a first elongate member including a first rod portion configured for coupling to one of the bone connecting elements and a first expansion portion, the first expansion portion further including a plurality of bore holes in an outer surface;
- a second elongate member including a second rod portion configured for coupling to one of the bone connecting elements and a second expansion portion slidably moveable with respect to the first expansion portion, the second expansion portion further including a plurality of through holes in an outer surface;
- and
- a locking element including a pin configured to be insertable into at least one of each of the bore holes and the through holes to thereby couple the first and second elongate members together and fix the length of the adjustable rod assembly,
- wherein the bone connecting element is rotationally adjustable about at least one of the first rod portion and the second rod portion.
An adjustable rod assembly for correcting or straightening a human spine, the adjustable rod assembly comprising:
- at least one bone connecting element for attaching to the rib cage, pelvis or spine of a patient;
- a first elongate member including a first rod portion configured for coupling to one of the bone connecting elements and a first expansion portion, the first expansion portion further including a plurality of bore holes in an outer surface;
- a second elongate member including a second rod portion configured for coupling to one of the bone connecting elements and a second expansion portion slidably moveable with respect to the first expansion portion, the second expansion portion further including a plurality of through holes in an outer surface;
- and
- a locking element including a pin configured to be insertable into at least one of each of the bore holes and the through holes to thereby couple the first and second elongate members together and fix the length of the adjustable rod assembly,
- wherein the bone connecting element is rotationally adjustable about at least one of the first rod portion and the second rod portion, and at least a portion of the first elongate member is straight or has a lordotic curvature.
A method of implanting an adjustable rod assembly for correcting or straightening a human spine, comprising the steps of:
- inserting a first bone connecting element through a first opening to a first location in a patient;
- coupling the first bone connecting element to bone at the first location;
- inserting a second bone connecting element through a second opening to a second location in a patient;
- coupling the second bone connecting element to bone at the second location;
- inserting a first elongate member through the first opening;
- coupling the first elongate member to the first bone connecting element;
- inserting a second elongate member through the second opening;
- coupling the second elongate member to the second bone connecting element;
- and
- coupling the elongate members together.
Dependencies are inferred from the claim text.