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 locking cap;
a saddle having a first side configured to couple to the locking cap and a second side opposite said first 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 second end of the saddle extending into the other of the two slots, wherein the first side of the saddle is configured to be selectively locked onto the locking cap prior to insertion of the locking cap and saddle into the coupling body such that the locking cap cannot be pulled away from the saddle; 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.
10 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 locking cap; a saddle having a first side configured to couple to the locking cap and a second side opposite said first 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 second end of the saddle extending into the other of the two slots, wherein the first side of the saddle is configured to be selectively locked onto the locking cap prior to insertion of the locking cap and saddle into the coupling body such that the locking cap cannot be pulled away from the saddle; 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, wherein the first side is configured to selectively lock the first saddle onto the locking cap prior to insertion of the locking cap and first saddle into the coupling body such that the locking cap cannot be pulled away from the first saddle; 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 abutting said locking cap and a second side opposite said first 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, wherein the saddle is configured to be selectively locked onto the locking cap prior to insertion into the coupling body such that the locking cap cannot be pulled away from the saddle; and an elongate rod comprised of a non-metallic material. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification