ROD COUPLING SYSTEMS AND DEVICES AND METHODS OF MAKING AND USING THE SAME
First Claim
1. A rod coupler system comprising:
- a coupling body having a bone fastener disposed therethrough, the coupling body having at least two sidewalls that define two upwardly extending arms that define two slots capable of receiving an elongate rod;
a saddle having a first side of said saddle abutting said bone fastener within said coupling body, and a second side of said saddle opposite said first side, said second side having a concave portion configured to abut the elongate rod along at least two lines of contact between said saddle and the elongate rod, the saddle having a first end and a second end, at least a portion of the first end of the saddle extending into one of the two slots and at least a portion of the send end of the saddle extending into the other of the two slots; and
an elongate rod comprised of a non-metallic material.
1 Assignment
0 Petitions
Accused Products
Abstract
Provided are rod coupler devices, systems, kits and methods, which include at least one saddle having a concave configuration that either abuts a bone fastener and/or a locking cap and is shaped so as to contact the rod in two or more lines of contact, which reduces pressure on the rod, and therefore permits use of a rod having various materials, such as PEEK, without significant deformation of the rod. Also provided is the saddle itself and integrated locking caps that include a saddle, the locking cap and a set screw. Also provided are elongate rods having advantageous shapes, configurations, and/or compositions for rod coupler devices, systems and methods. Further provided are screw and cap devices and systems that themselves include a concave configuration so as to contact a rod in two or more lines of contact, which reduces pressure on the rod.
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Citations
18 Claims
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1. A rod coupler system comprising:
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a coupling body having a bone fastener disposed therethrough, the coupling body having at least two sidewalls that define two upwardly extending arms that define two slots capable of receiving an elongate rod; a saddle having a first side of said saddle abutting said bone fastener within said coupling body, and a second side of said saddle opposite said first side, said second side having a concave portion configured to abut the elongate rod along at least two lines of contact between said saddle and the elongate rod, the saddle having a first end and a second end, at least a portion of the first end of the saddle extending into one of the two slots and at least a portion of the send end of the saddle extending into the other of the two slots; and an elongate rod comprised of a non-metallic material. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A coupling system comprising:
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a first saddle comprising; a first side configured to be detachably attached to a locking cap for a coupling body; and a second side opposite said first side of said saddle, said second side having a concave portion configured to abut a first end of an elongate rod along at least two lines of contact between said saddle and said elongate rod; a second saddle comprising; a first side configured to be engaged with a bone screw for a coupling body; and a second side opposite said first side of said saddle, said second side having a concave portion configured to abut a second end of the elongate rod along at least two lines of contact between said saddle and said elongate rod. - View Dependent Claims (9, 10, 11, 12)
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13. A rod coupler system comprising:
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a coupling body having a bone fastener disposed therethrough, the coupling body having at least two sidewalls that define two upwardly extending arms that define two slots capable of receiving an elongate rod; a locking cap adapted for attachment to said coupling body, and a saddle having a first side of said saddle abutting said locking cap, and a second side of said saddle opposite said first side, said second side having a concave portion configured to abut an elongate rod along at least two lines of contact between said saddle and said elongate rod the saddle having a first end and a second end, at least a portion of the first end of the saddle extending into one of the two slots and at least a portion of the send end of the saddle extending into the other of the two slots; and an elongate rod comprised of a non-metallic material. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification