Patent ID: 9504479
Filing Date: 2016-11-29
CPC Classification: A61B

Claim Text:
1. A device to perform minimally invasive surgery on a vertebral body using an 11 gauge cannula, the system comprising: a handle ( 15 ) with a shaft ( 10 ) less than the internal diameter (i.d.) of an 11 gauge cannula having a memory arm ( 12 ) with a blade ( 11 ) attached thereto; said memory arm compactable to a substantially co-axial position within a cannula; a hollow sheath ( 40 ) with a forward tip ( 42 ) having an i.d. substantially the same as the diameter of an 11 gauge cannula; said memory arm compacted into said hollow sheath ( 40 ); an 11 gauge cannula ( 103 ) having a distal ( 104 ) and a proximal end ( 106 ); the cannula having an interior diameter substantially the same as the i.d. of said hollow sheath; and, whereby aligning the tip and the proximal end of the cannula provides a pathway for the compacted memory arm and blade to be passed in a compacted state from the hollow sheath into the cannula, wherein the hollow cannula further comprises a mounting ( 100 ) corresponding to the forward tip; a sheath sleeve ( 50 ) with a forward end ( 54 ) that fits over at least a portion of the hollow sheath; and, wherein the forward end of the sheath sleeve is threaded ( 55 ), and the handle facing side of the cannula mount 120 has corresponding threads.