Patent ID: 7125411

Claim:
A cannula delivery and support system, comprising: a) a cannula supporting coil comprising: a thin resilient elongated member, comprising: i) a proximal portion comprising a clip portion for capturing a side port of an endoscopic or arthroscopic cannula; ii) an intermediate portion; and, iii) a distal portion having a plurality of revolutions to accommodate the main body of the cannula, a terminal portion of a final revolution of said distal portion having less curvature than previous portions of said distal portion for anchoring to an anatomical cavity lining of an anatomical cavity; b) an elongated sheath for containing said cannula supporting coil during delivery of said cannula supporting coil to the anatomical cavity; and, c) an elongated trocar having an upper portion and a lower portion, said upper portion having an outer surface slightly smaller tan an inner surface of said elongated sheath, said lower portion having a diameter less than said revolutions of said distal portion of said cannula supporting coil so as to maintain said revolutions of said distal portion of said cannula supporting coil about said lower portion, said lower portion terminating in an atraumatic end, wherein said lower portion of said trocar, said sheath, and said cannula supporting coil are introduced into the anatomical cavity as a single unit, said trocar being removed and inverted so that said upper end thereof is utilized as a plunger to push the cannula supporting coil toward a lower end of said elongated sheath thus allowing removal of said sheath to allow placement of said cannula supporting coil and subsequent placement of the cannula.