Patent ID: 6814696
Filing Date: 2004-11-09
Classification: A61B

Abstract:
Surgical apparatus comprising:an elongated substantially cylindrical cannula including a plural number of lumens eccentrically oriented and extending therein between distal and proximal ends; a housing attached to the cannula near the proximal end thereof including passages for slidably receiving therein surgical instruments including an endoscope disposed within one of the number of the lumens in the cannula; and a tissue-dissecting blunt tip having a cylindrical segment for attachment to the distal end of the cannula, the tip having a forward conical segment axially aligned with the eccentric orientation of the one lumen, and having an intermediate segment having exterior walls tapering between the cylindrical segment and the forward conical segment, at least the forward conical segment including transparent exterior walls that permit visualization therethrough by an endoscope within the one lumen.