Patent ID: 8517934
Filing Date: 2013-08-27
Classification: A61B

Abstract:
1. A method of performing a surgical procedure on an individual, comprising the steps of: a) creating an operative portal in the individual; b) introducing a trocar within the operative portal, the trocar including a tubular outer cannula having a distal end, a proximal end and an inner surface and an outer surface, the proximal end of the tubular outer cannula; the trocar also including a tubular inner cannula having a distal end, a proximal end and an outer surface, the inner cannula being greater in length than the outer cannula, the inner cannula being positioned within the outer cannula for longitudinal movement within the outer cannula; and the trocar also includes a plurality of wings circumferentially attached to the distal end of the inner cannula, the plurality of wings retained between the inner surface of the other cannula and the outer surface of inner cannula when the outer cannula is in a first position, each of the plurality of wings angled away from the other plurality of wings enabling the plurality of wings being to stabilize the device in or around the operative portal when said outer cannula is moved to a second position with said proximal ends of both said inner and outer cannulae being adjacent to one another; c) moving the outer cannula with respect to the inner cannula to deploy the plurality of wings; d) visualizing the operative portal and the device with the plurality of wings deployed to determine whether the plurality of wings are adequate to stabilize the device in the operative portal; e) moving the outer cannula with respect to the inner cannula to retain the plurality of wings between the inner and outer cannulae; f) removing the device from the operative portal; g) modifying the shape or size of at least one of the plurality of wings based upon the visualizing step to better stabilize the device within the operative portal; h) reinserting the device in the operative portal; i) moving the outer cannula with respect to the inner cannula to deploy the plurality of wings or tips to stabilize the device within the operative portal.