Lumbar fusion
AssigneeJustin Massengale
InventorJustin Massengale
Life of this patent
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Abstract
Apparatus and methods for lumbar fusion. An apparatus includes a large footprint interbody cage, a two bladed mini-open retractor, and a pole, the large footprint interbody cage laid into a concavity forward by outwardly bent tines of the two bladed mini-open retractor, the pole for impacting the large footprint interbody cage into an interbody space advanced through a stab incision separate from a main incision and attached to the large footprint interbody cage.
Claims10
A system comprising:
- a large footprint interbody cage;
- a two bladed mini-open retractor;
- and
- a pole, the large footprint interbody cage laid into a concavity forward by outwardly bent tines of the two bladed mini-open retractor, the pole for impacting the large footprint interbody cage into an interbody space advanced through a stab incision separate from a main incision and attached to the large footprint interbody cage.
A system comprising:
- an access tube internal trochar;
- a slotted access tube;
- a curved track;
- and
- a spatula-style muscle spreading instrument, the trochar, access tube, curved track and spreading instrument used for an implant for interbody fusion, including disc space and endplate preparation.
A minimally invasive method for a use of an implant for interbody fusion, the method comprising:
- advancing a tunnel a trochar inside through an incision in the skin and underlying facsia to dock on a lumbar facet through an off-midline incision;
- performing an ipsilateral facetectomy;
- preparing a disc space with an internal serial passage of instruments down a visualization tunnel;
- adjusting an angle of the tunnel;
- packing a cage with arthrodesos material;
- attaching the cage to an inserter instrument;
- adjusting an angle of the tunnel to enable insertion of the cage in as diagonal an orientation as possible into an interspace through the tunnel;
- and
- disconnecting the introducer from the cage.
A mini-open method for a use of an implant for interbody fusion, the method comprising:
- performing an ipsilateral facetectomy and disc annulotomy;
- introducing disc preparation instruments;
- advancing each sequentially beneath skin muscle and soft tissue
- guide each instrument through a slot in a convex lateral retractor blade;
- visualizing each instrument emerging into a surgical field;
- guiding each instrument into the previously created ipsilateral disc annulotomy;
- advancing each instrument to a final position across a midline in a contralateral pedicular zone of an interspace;
- and
- packing a cage and laying the packed cage into initial insertion position in an ipsilateral foramen over an annulotomy.
Dependencies are inferred from the claim text.