INSTRUMENT FOR DEBRIDING FISTULA AND APPLYING THERAPEUTIC CELLS

摘要

A treatment system comprises an outer sheath (80) and an end effector (110). The end effector has a plurality of cutting features (116), at least a portion of which are configured to debride a tissue surface when the end effector is actuated. The cutting features may also be configured to harvest tissue. A medical fluid reservoir (50) is in fluid communication with the end effector, such that the end effector may deliver a medical fluid to a target site such as a fistula. The medical fluid may include harvested tissue cells and a scaffold material. A vacuum cannula may be positioned coaxially within the interior cavity of the end effector, and an RF probe (120) may be positioned co- axially within the interior cavity of the vacuum cannula. The vacuum cannula and RF probe may be used together to seal a fistula in which medical fluid has been dispensed.