Patent ID: 9386974
Filing Date: 2016-07-12
CPC Classification: A61B

Claim Text:
1. A surgical access device for brain surgery, the surgical access device comprising: an obturator having a proximal obturator end, a distal obturator end and an obturator shaft extending between the proximal obturator end and the distal obturator end, the distal obturator end comprising a transparent window forming an atraumatic blunt dilating tip; a cannula having a proximal cannula end and a distal cannula end and a longitudinal access channel extending from the proximal cannula end to the distal cannula end, the cannula being configured and dimensioned to removably mount over the obturator shaft with the proximal cannula end adjacent the proximal obturator end, and the distal obturator end extending outside the distal cannula end; and an image guidance identification device comprising image guidance reflectors attached to and located outside the obturator and configured to indicate the position of the surgical access device to an image guidance system to allow insertion of the surgical access device in tissue under guidance without requiring insertion of a stylet in advance of the surgical access device.