| abstract |
A fluid delivery cannula which provides an interface between an access point or port site in the body of a patient and a working channel which may receive tools or instruments used during surgical procedures which may be less invasive surgical procedures than traditional open procedures. The cannula allows introduction of fluid(s) into the port site and then into tissue generally at or near that location within the body of the patient. The fluid delivery cannula includes an expandable sleeve that may itself comprise a cannula through which a needle, or trocar assembly is inserted. At least one fluid passageway, is defined, for example, in either the expandable sleeve itself, or defined, by the combination of the needle or trocar assembly and the expandable sleeve. Visual identifiers are used with the fluid delivery cannula to visually distinguish the location of the fluid passageway relative to an adjacent area. |