A device for collecting a tissue sample includes a needle extending along a longitudinal axis from a proximal end to a distal end and including a lumen extending therethrough an opening in a lateral surface of the needle and a jaw rotatably coupled to the needle for rotation between a closed configuration in which the jaw covers the opening and an open configuration in which the jaw is received within the lumen to expose the opening. The jaw includes a tissue cutting edge which, as the jaw is rotated from the open configuration to the closed configuration, passes out of the opening along a cutting arc to sever any tissue received in the opening from surrounding tissue.
