MINIMALLY INVASIVE PORTAL SYSTEM

摘要

A minimally invasive surgical portal system, kit, device and method may include a top ring assembly removably connected to an arm of a table mounted frame to provide stability and a secure trajectory. The portal system may include a top-ring assembly which may mount to an arm of a table mounted frame. The system may include a removable connection mechanism comprising a spring loaded collar configured to removably connect the top ring assembly to a table mounted frame. A variable adjustment positioner may be removably connected to the arm of the table mounted frame. The system may also include a depth positioning mechanism. The system may further include a light source configured to be placed down the portal tube.

主权项

1. A minimally invasive spinal surgical portal system, comprising:
a top ring assembly removably connected to a table mounted frame and extending distally from the table; a variable positioner configured to adjust the trajectory of the system such that multiple levels of a spine may be accessed without removing the system from the frame; a retractor tube movably connected to the assembly; a working cannula; and a connector operatively connected to the working cannula, the connector being rotatably connected to the assembly such that the working cannula is swivelable about a vertical axis with respect to the retractor tube.