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US RE50,844 E1Granted
Surgical connectors and instrumentation
AssigneeOrthoPediatrics Corp.
InventorsDavid W. Daniels, John Kapitan, Ryan A. Lewis, John E. Pendleton, John J. Souza
Life of this patent
Estimating the term…
Abstract
A medical device includes a spinal rod receiving channel disposed within the medical device and a rod retaining set screw, wherein the spinal rod receiving channel includes an upper arc having a first end and second end, a first middle arc connected to the first end of the upper arc, a second middle arc connected to the second end of the upper arc and disposed opposite the first middle arc, connecting slants connected to first and second middle arcs, and a lower arc connected to the connecting slants, and the rod retaining set screw configured to secure a spinal rod disposed in the spinal rod receiving channel into the medical device.
Claims21
A cross connector comprising:
- a first linkage comprises a first cross connector hook, a first screw receiving port disposed adjacent the first cross connector hook and a bi-axial cross connector extension rod extending from the first cross connector hook, wherein the bi-axial cross connector extension rod is a round shaft extending from the first screw receiving port of the first linkage;
- a second linkage comprises a second cross connector hook, a second screw receiving port disposed adjacent the second cross connector hook and a bi-axial cross connector extension plank extending from the second cross connector hook, the bi-axial cross connector extension plank including a linkage retaining orifice, wherein the linkage retaining orifice is disposed proximal to an end of the bi-axial cross connector extension plank distal to the second screw receiving port of the second linkage;
- a first retaining screw constructed to engage the first screw receiving port;
- a second retaining screw constructed to engage the second screw receiving port;
- a pivot post, the pivot post comprising a bi-axial cross connector extension rod channel, a threaded post, and a linkage retaining shoulder, wherein the bi-axial cross connector extension rod channel is configured to allow the bi-axial cross connector extension rod to pass through unimpeded;
- and
- a midline nut constructed to engage the threaded post;
- wherein:
- the first and second cross connector rod hooks each comprise at least a first circular bore, a second circular bore, and a connecting slant which in combination form a hook with an open portion;
- the first circular bore forms a portion of a middle arc of each of the first and second cross connector rod hooks;
- the second circular bore forms a lower arc of each of the first and second cross connector rod hooks;
- the portion of the middle arc and the lower arc are connected by the connecting slant;
- the first rod retaining screw and first screw receiving port are constructed to secure a spinal rod disposed in the first cross connector rod hook;
- the second rod retaining screw and second screw receiving port are constructed to secure a spinal rod disposed in the second cross connector rod hook;
- the bi-axial cross connector extension rod is disposed in the bi-axial cross connector extension rod channel, the linkage retaining orifice is disposed over the threaded post, and the midline nut is disposed on the threaded post;
- the bi-axial cross connector extension rod channel comprises a first surface and a second surface;
- the first surface is disposed proximal to the threaded post and is an arc with a diameter of approximately 0.6 to approximately 1.4 mm larger than the diameter of the bi-axial cross connector extension rod;
- and
- the second surface is disposed distal to the threaded post and is an arc with a diameter of approximately 0.03 to approximately 0.3 mm larger than the diameter of the bi-axial cross connector extension rod.
16 more elements
A cross connector comprising:
- a first linkage comprises a first cross connector rod hook, a first screw receiving port disposed adjacent the first cross connector rod hook and a bi-axial cross connector extension rod extending from the first cross connector rod hook, wherein the bi-axial cross connector extension rod is a round shaft extending from the first screw receiving port of the first linkage and having a bi-axial cross connector extension rod limiter disposed on an end thereof;
- a second linkage comprises a second cross connector rod hook, a second screw receiving port disposed adjacent the second cross connector rod hook and a bi-axial cross connector extension plank extending from the second cross connector rod hook, the bi-axial cross connector extension plank including a linkage retaining orifice, wherein the linkage retaining orifice is disposed proximal to an end of the bi-axial cross connector extension plank distal to the second screw receiving port of the second linkage;
- a first retaining screw constructed to engage the first screw receiving port;
- a second retaining screw constructed to engage the second screw receiving port;
- a pivot post, the pivot post comprising a bi-axial cross connector extension rod channel, a post, and a linkage retaining shoulder, wherein the bi-axial cross connector extension rod channel is configured to allow the bi-axial cross connector extension rod to pass through unimpeded;
- and
- a midline nut constructed to engage the post;
- wherein:
- the first retaining screw and first screw receiving port are constructed to secure a spinal rod disposed in the first cross connector rod hook is constructed to receive a first spinal rod;
- the second retaining screw and second screw receiving port are constructed to secure a spinal rod disposed inthe second cross connector rod hook is constructed to receive a a second spinal rod;
- the bi-axial cross connector extension rod is disposed in the bi-axial cross connector extension rod channel, the linkage retaining orifice is disposed over the post, and the midline nut is disposed on the post;
- the bi-axial cross connector extension rod channel comprises a first surface and a second surface;
- the first surface is disposed proximal to the post and is an arc with a diameter of approximately 0.6 to approximately 1.4 mm larger than the diameter of the bi-axial cross connector extension rod;and
- the second surface is disposed distal to the post and is an arc with a diameter of approximately 0.03 to approximately 0.3 mm larger than the diameter of the bi-axial cross connector extension rod;
- the bi-axial cross connector extension rod channel is configured to allow the bi-axial cross connector extension rod to pass through unimpeded when the bi-axial cross connector extension rod is in contact with the first surface;
- and
- the bi-axial cross connector extension rod channel is configured to prohibit the bi-axial cross connector extension rod from passing through when the bi-axial cross connector extension rod is in contact with the second surface.
14 more elements
The cross connector of claim 1517, wherein the first cross connector rod hook of the first linkage is adjustable along the first axis relative to the pivot post.
Dependencies are inferred from the claim text.