Patent ID: 6592543
Filing Date: 2003-07-15
Classification: A61B,A61M

Abstract:
A fluid flow regulator, for a passive smoke evacuation system including a smoke filtration system, the flow regulator comprising:(a) a flow regulating means for providing a predetermined resistance to the flow of fluid, the resistance determined as a function of system variables including the resistance of the filtration system; (b) at least one fluid conduit connecting means for coupling the flow regulating means to the smoke filtration system; (c) wherein the fluid flow rate through the smoke evacuation system induced by a pressurized surgical site is limited to a range sufficient to substantially evacuate surgical smoke without depressurizing the surgical site, and; (d) wherein the flow regulating means is comprised of a diaphragm with at least one orifice having a characteristic diameter for providing a significant obstruction to the flow of fluid.