Posterior spinal stabilization plate device

Patent metadata

Field	Value
Publication number	US-9381044-B2
Application number	US-201213608366-A
Country	US
Kind code	B2
Filing date	Sep 10, 2012
Priority date	Jan 26, 2010
Publication date	Jul 5, 2016
Grant date	Jul 5, 2016

Abstract

A device for connecting two spinal rods is provided. In one form, the device includes two clamping devices for receiving and locking to spinal rods and a central bridge or plate member that couples the clamping devices. In one aspect, the clamping devices are unitary members with deflectable jaw portions that snap-fit and then locked by operation of actuators. In another aspect, one or both of the clamping devices are adjustably coupled to the central bridge or plate member to allow at least translation and pivoting or rotation of the clamping devices relative to a central axis of the elongate bridge member. The clamping devices may be coupled to the bridge or plate member with the same locking actuator that causes clamping of the clamp device so that the positions of the clamp device and the spinal rod are locked into place by manipulation of only a single locking actuator.

First claim

What is claimed is:

1. A posterior spinal stabilization plate device comprising:
a plate body having a plurality of apertures for receiving anchor members;
a track member coupled to the plate body, the track member including a guide track;
at least one clamp device having a resiliently deflectable jaw portion and a threaded portion, the clamp device slidably coupled to the guide track; and
a rotary locking actuator member having a threaded portion threadingly connected to the threaded portion of the clamp device to slidingly couple the clamp device to the guide track, and being further operable to be rotated for being shifted into direct engagement with the deflectable jaw portion to resiliently shift the resiliently deflectable jaw portion into locking engagement with a spinal rod and to fix the clamp device against sliding along the guide track.

2. The posterior spinal stabilization plate device of claim 1 wherein the clamp device includes a body portion that cooperates with the resiliently deflectable jaw portion to form an arcuate recess in which the spinal rod is received to be locked therein by the resiliently deflectable jaw portion.

3. A posterior spinal stabilization plate device comprising:
a plate body having a plurality of apertures for receiving anchor members;
a track member coupled to the plate body, the track member including a guide track;
at least one clamp device having a resiliently deflectable jaw portion, the clamp device slidably coupled to the guide track; and
a rotary locking actuator member connected to the clamp device to slidingly couple the clamp device to the guide track, and being further operable to be rotated for being shifted into direct engagement with the deflectable jaw portion to resiliently shift the resiliently deflectable jaw portion into locking engagement with a spinal rod and to fix the clamp device against sliding along the guide track,
wherein the guide track includes a guide slot, and the rotary locking actuator member includes an elongate shank portion configured to extend through the guide slot to be slidably disposed therein.

Assignees

• Robinson Daniel Rae
• Gephart Matthew P
• Sullivan John
• Pioneer Surgical Tech Inc

Inventors

• Robinson Daniel Rae
• Gephart Matthew P
• Sullivan John

Classifications

• A61B17/8695

  Washers (surrounding screw head in plate hole A61B17/8047, between bone plate and bone A61B17/8028) · CPC title

• A61B17/705

  for linking adjacent ends of longitudinal elements · CPC title

• A61B17/7055 Primary

  connected to sacrum, pelvis or skull · CPC title

• A61B17/8685

  comprising multiple separate parts · CPC title

• A61B17/7052 Primary

  of variable angle or length · CPC title