Ultrasonic cutting device

A device for performing a surgical procedure, comprising:

• an elongated member having a proximal end and a distal end spaced along a longitudinal axis, the elongated member having an inner surface and an outer surface, wherein the inner surface defines a passageway;
• a septum configured to separate the passageway into a first conduit and a second conduit, wherein a distal end of the second conduit terminates before a distal end of the first conduit to form a stepped configuration, the distal end of the second conduit having an ultrasonic-driven cutting edge configured for cutting tissue such that the cutting edge vibrates ultrasonically to cut tissue;
• and
• wherein a distal end of the first conduit includes an outlet configured for delivering material to a surgical site and the distal end of the second conduit includes an inlet configured for aspirating the surgical site.

A device for performing lumbar decompression surgery, comprising:

• a tube having a proximal end and a distal end spaced along a longitudinal axis, the tube having an inner surface and an outer surface, wherein the inner surface defines a passageway;
• a septum configured to separate the passageway into a first semicircular conduit and a second semicircular conduit, wherein a distal end of the second semicircular conduit terminates before a distal end of the first semicircular conduit to form a stepped configuration;
• and
• a semicircular ultrasonic-driven cutting blade having a cutting edge and being concentrically disposed within the second semicircular conduit configured for cutting tissue such that cutting blade vibrates ultrasonically to cut bone,
• wherein the distal end of the first semicircular conduit includes an outlet configured for delivering irrigation fluid to a surgical site and the distal end of the second semicircular conduit includes an inlet for aspirating the surgical site.