Magnetically actuateable rod insertion for minimally invasive surgery
AssigneeNuVasive, Inc.
InventorsConrad Tyler Hammann, Derek Matteo, Matthew Tobias Jacobs
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Abstract
The present disclosure describes a spinal fixation system comprising a telescoping spinal rod, as well as methods of its use and a guide tower for use therewith. The telescoping rod can be extended after it has been inserted into the patient below the fascia, which permits it to be extended in the sub-fascial space.
Claims20
A guide tower assembly for guiding a spinal rod into position from a first bone anchor to a second bone anchor, the guide tower assembly comprising:
- an elongate tower member having a proximal end, a distal end, and a longitudinal axis;
- a lumen running from the proximal end to the distal end of the elongate tower member;
- a longitudinal slot that connects to the lumen;
- a bone anchor engagement member configured to reversibly fasten the first bone anchor to the elongate tower member;
- a first rod holder having a first rod engagement feature and a first translating shaft connected to the first rod engagement feature, wherein the first translating shaft is capable of translating along the longitudinal axis relative to the elongate tower member;
- and
- a second rod holder having a second rod engagement feature and a second translating shaft connected to the second rod engagement feature, wherein the second translating shaft is capable of translating along the longitudinal axis relative to the elongate tower member.
A guide tower assembly for guiding a telescoping spinal rod into position from a first bone anchor to a second bone anchor, the guide tower assembly comprising:
- an elongate tower member having a proximal end, a distal end, and a longitudinal axis;
- a lumen running from the proximal end to the distal end of the elongate tower member;
- a longitudinal slot that connects to the lumen;
- a bone anchor engagement member configured to reversibly fasten the first bone anchor to the elongate tower member;
- a first rod holder having a first rod engagement feature at a distal end of the first rod holder and a first translating shaft connected to the first rod engagement feature,
- wherein the first translating shaft is capable of translating along the longitudinal axis relative to the elongate tower member, and
- wherein the first rod engagement feature is configured to engage a first end of the telescoping spinal rod for rod insertion;
- and
- a second rod holder having a second rod engagement feature at a distal end of the second rod holder and a second translating shaft connected to the second rod engagement feature,
- wherein the second translating shaft is capable of translating along the longitudinal axis relative to the elongate tower member and wherein the second rod engagement feature is configured to engage a second end opposite the first end of the telescoping spinal rod for rod insertion.
Dependencies are inferred from the claim text.