Fluid delivery trocar-cannula complex, fluid delivery accessory, and method for delivering fluids during minimally invasive surgery

摘要

A medical apparatus for dispensing a biologically active liquid includes a trocar-cannula complex configured to be inserted through selected tissue of a patient and including a cannula and an elongated trocar having a closed converging tip at a distal end thereof and a fluid delivery channel. The cannula includes a working channel through which medical instruments may be advanced. A fluid delivery device may be removably coupled to the cannula. The fluid delivery device includes an inner portion adapted to receive the biologically active liquid, an outer surface adapted to contact the tissue of the patient, and at least one pathway from the inner portion to the outer surface for delivering the biologically active liquid from the inner portion to the outer surface when the outer surface is in contact with the tissue.