Patent ID: 9028398
Filing Date: 2015-05-12
Classification: A61B,A61M,F04B

Abstract:
1. A method of continuous flow irrigation of a tissue cavity during a morcellation based surgical procedure, comprising the steps of: providing a continuous flow irrigation endoscope in a vicinity of the tissue cavity, the endoscope comprising only a single housing sheath without an inner sheath, the single housing sheath having a longitudinal axis, a distal end and a proximal end; an inflow port located at the proximal end of the single housing sheath, configured to allow fluid to enter the single housing sheath; and a morcellator tube or a shaver tube or a cutter tube extending about parallel to the longitudinal axis of the single housing sheath, the morcellator tube or the shaver tube or the cutter tube being configured to move in at least one of a linear motion and a rotary motion relative to the longitudinal axis of the single housing sheath, wherein the morcellator tube or the shaver tube or the cutter tube includes an evacuation channel for removal of fluid and/or tissue debris traveling from a distal opening located at a distal end of the morcellator tube or the shaver tube or the cutter tube to an outflow port located at a proximal end of the tube, wherein the single housing sheath has an effective cross sectional area that comprises a total cross sectional area of the single housing sheath from which a cross sectional area occupied by the morcellator tube or the shaver tube or the cutter tube has been subtracted, and the morcellator tube or the shaver tube or the cutter tube has an effective cross sectional area denoted by a cross-sectional area of the evacuation channel, the effective cross sectional area of the single housing sheath being less than the effective cross sectional area of the morcellator tube or the shaver tube or the cutter tube; connecting the inflow port of the single housing sheath to a fluid source via an inflow pump for pumping fluid from the fluid source at a controlled inflow rate into the inflow port of the single housing sheath and the tissue cavity, wherein the inflow rate is a flow rate of the inflow pump; and connecting the outflow port of the tube directly and without any intermediate valve type system to an outflow pump for removing waste fluid from the tissue cavity at a controlled outflow rate, wherein the outflow rate is a flow rate of the outflow pump.