MINIMALLY INVASIVE BONE ANCHOR EXTENSIONS
First Claim
1. A bone anchor extension, comprising:
- an inner tube having proximal and distal ends with a lumen extending therebetween;
an outer tube disposed about at least a portion of the inner tube, the outer tube having proximal and distal ends with a lumen extending therebetween, the outer tube being sized to span from at least a skin incision in a patient to a predetermined site proximate a spine of the patient; and
a locking mechanism pivotally coupled to the inner and outer tubes such that pivotal movement of the locking mechanism is effective to move the inner tube relative to the outer tube to engage a bone anchor between the distal end of the inner tube and the distal end of the outer tube.
1 Assignment
0 Petitions
Accused Products
Abstract
Methods and devices are provided for facilitating delivery and implanting of a bone anchor into bone. In one exemplary embodiment, a bone anchor extension is provided for coupling to a bone anchor to facilitate delivery and implanting of the bone anchor in bone. The bone anchor extension can have a generally elongate configuration that allows it to extend from a skin incision in a patient to a site proximate a patient'"'"'s spine, and it can include a lumen extending therethrough between proximal and distal ends thereof. A distal end of the bone anchor extension can be adapted to engage a bone anchor, such as a bone screw. Various techniques are provided for locking the distal end of the bone anchor extension into engagement with a bone anchor.
173 Citations
27 Claims
-
1. A bone anchor extension, comprising:
-
an inner tube having proximal and distal ends with a lumen extending therebetween; an outer tube disposed about at least a portion of the inner tube, the outer tube having proximal and distal ends with a lumen extending therebetween, the outer tube being sized to span from at least a skin incision in a patient to a predetermined site proximate a spine of the patient; and a locking mechanism pivotally coupled to the inner and outer tubes such that pivotal movement of the locking mechanism is effective to move the inner tube relative to the outer tube to engage a bone anchor between the distal end of the inner tube and the distal end of the outer tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A spinal anchoring system, comprising:
-
a bone anchor having a head with a bone-engaging shank extending therefrom; and a bone anchor extension having an inner tube having proximal and distal ends with a lumen extending therebetween, an outer tube disposed about at least a portion of the inner tube and having proximal and distal ends with a lumen extending therebetween, the outer tube being sized to span from at least a skin incision in a patient to a predetermined site proximate a spine of the patient, and a locking mechanism pivotally coupled to at least one of the inner and outer tubes and adapted to pivot to move the inner tube relative to the outer tube to engage the head of bone anchor between the distal end of the inner tube and the distal end of the outer tube. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
-
-
22. A surgical method, comprising:
-
positioning a head of a bone anchor between a distal end of an outer tube and a distal end of an inner tube disposed within the outer tube; and pivoting a locking mechanism pivotally coupled to a proximal portion of the outer tube to move the locking mechanism from an unlocked position to a locked position and thereby slide the inner tube relative to the outer tube to engage the head of the bone anchor between the distal ends of the inner and outer tubes. - View Dependent Claims (23, 24, 26, 27)
-
-
25. The method of claim 25, further comprising moving the locking mechanism from the locked position to the unlocked position to release the head of the bone anchor from the distal ends of the inner and outer tubes.
Specification