Patent ID: 6716194
Filing Date: 2004-04-06
Classification: A61M

Abstract:
A surgical suction device for aspiration of tissues and fluids from a patient comprising:a proximal connection, the proximal connection in fluid communication with a source of suction; a hollow cannula extending from the proximal connection, the hollow cannula with a cannula lumen extending therewithin in fluid communication with the source of suction; a distal tip of the hollow cannula with at least one entry port, the entry port or ports providing a fluid communication path between the cannula lumen and the tissues or fluids of the patient; and a continuous precision leak between the ambient air and the cannula lumen, wherein the continuous precision leak is characterized by providing an air flow of at least 3 cubic feet per hour but not more than 40 cubic feet per hour when the entry port or ports are completely occluded.