Spinal fixation tool, system and method
OwnerCharles KANALYinventor
Life of this patent
Estimating the term…
Abstract
A spine fixation tool and system for use with rods and screws. The system includes a rod holder/inserter having a rod guide member and a swivel arm pivotably connected to the guide member. The swivel arm is configured to secure and retain the rod therein, and move relative to the rod guide member to position the rod in screws within a patient's vertebrae during spinal surgery. The system further includes an inner stylet that retains the rod and an outer sheath configured to engage the inner stylet. The system is used to insert a rod through screws placed in a patient's vertebrae. With swivel arm secured on top of heads of the screws. A surgeon uses spinal navigation system to help position the rod. The system enables minimally invasive spinal fixation surgery with smaller and fewer skin incisions.
Claims20
A device comprising:
- a rod holder;
- a swivel arm pivotally attached to the rod holder;
- an inner stylet, a bottom portion of the inner stylet comprising a pincher to receive a rod;
- an outer sheath, the outer sheath configured to slide over the inner stylet;
- a T depressor configured to slide over an upper portion of the inner sytlet;
- and
- a ratchet positioned on a top portion of the swivel arm, the ratchet configured to lock on to the T depressor.
A spine fixation system comprising:
- a rod holder/inserter including a rod guide member and a swivel arm pivotably connected to the rod guide member, wherein the rod guide member includes an opening dimensioned to receive the swivel arm therethrough, a distal end having an open back to receive a rod therethrough, and wherein the swivel arm includes a distal front opening dimensioned to receive the rod and having a solid distal base and back wall to secure the rod;
- an inner stylet including a pincher at its distal end having an opening configured to receive and retain the rod therein,
- a U-shaped T depressor including two arms defining an insertion groove therebetween and each having a beveled edge configured to lock into a portion of the swivel arm;
- and
- an outer sheath including a lower part and an upper part configured to cooperates with the lower part, the outer sheath including means for engaging the inner stylet.
Dependencies are inferred from the claim text.