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US 11,596,453 B2Granted
Minimally invasive spinal fixation system
AssigneeNuVasive, Inc.
InventorsFernando Olea, Andrew Schafer, Scott Lish, Robert German, Justin Doose, Derek Matteo, Garrett T. Offerman, James Coleman Lee, Conrad Tyler Hammann
Life of this patent
Estimating the term…
Abstract
This application describes surgical instruments and implants for building a posterior fixation construct across one or more segments of the spinal column. More specifically, the application describes instruments and methods for building a posterior fixation construct across one or more segments of the spinal column in a minimally invasive fashion.
Claims15
A spinal fixation system, comprising:
- a compressor system configured to manipulate a pair of guide assemblies to compress or distract space between vertebrae, wherein the compressor system comprises a rack, a first arm fixedly positioned at the rack, a second arm movably attached to the rack, and a lock, wherein the lock comprises:
- a selection switch connected to the rack, the selection switch having a recess, wherein the selection switch is configured for adjusting the lock between a compression position in which the second arm is prevented from moving away from the first arm, and a distraction position in which the second arm is prevented from moving towards the first arm;
- and
- a first pawl pivotably connected to the rack, the first pawl including a first end dimensioned to be received with the recess of the selection switch and a second end comprising a ratchet configured to engage the rack thereby preventing movement of the second arm away from the first arm when the first end of the first pawl engages the recess.
1 more element
A spinal fixation system, comprising:
- a compressor system configured to manipulate a pair of guide assemblies to compress or distract space between vertebrae, wherein the compressor system comprises a rack, a first arm fixedly positioned to the rack, a second arm movably attached to the rack, and a lock,
- wherein the first arm includes a fixed base attached to the rack, a removable arm unit having an attachment elbow, the attachment elbow extending laterally from a proximal end of the elongated arm and having a lumen for receiving a post of the fixed base, and wherein the lumen has gear slots and the post comprising a matching gear wheel for engaging the gear slots thereby allowing the removable arm to be attached to the rack at a plurality of angles, and
- wherein the lock comprises:
- a selection switch coupled to the rack, the selection switch having a recess;
- and
- a first pawl pivotably connected to the rack, the first pawl including a first end dimensioned to be received within the recess of the selection switch and a second end comprising a ratchet configured to engage the rack.
3 more elements
Dependencies are inferred from the claim text.