{HEAD ~ The apparatus} 5, wherein the second tissue cutting screen further comprises a frame having a central opening therein, wherein the elongate cutting members extend across the central opening, wherein the first tissue cutting {TAIL ~ screen} is mounted within the housing such that the central opening extends transversely across the morcellating chamber, wherein the outer circumference of the frame of the first tissue cutting screen comprises a gear, and wherein the actuator comprises a drive gear meshed with the gear on the frame of the first tissue cutting screen 
{ HEAD ~ The apparatus } 5 , wherein the second tissue cutting screen further comprises a frame having a central opening therein , wherein the elongate cutting members extend across the central opening , wherein the first tissue cutting { TAIL ~ screen } is mounted within the housing such that the central opening extends transversely across the morcellating chamber , wherein the outer circumference of the frame of the first tissue cutting screen comprises a gear , and wherein the actuator comprises a drive gear meshed with the gear on the frame of the first tissue cutting screen
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