Surgical instruments useful for endoscopic spinal procedures

摘要

The present application discloses instruments for use in an endoscopic discetomy procedure which are configured to be disassembled for cleaning and reassembled for subsequent utilization. The preferred embodiments include endoscopic rongeur-style instruments 10 which may be used to remove calcification, to trim away part of a bone and to remove tissue and tissue samples for biopsy purposes. The endoscopic surgical instruments of the present application are provided with a handle mechanism 20, an elongated endoscopic portion 30 extending from the handle mechanism and a tool mechanism 40 supported at a distal end of the endoscopic portion . The handle mechanism includes a body portion 22 having an upper 22a and a lower 22b body portion, a stationary grip 24 extending from the body portion and a pivotable grip 26 pivotally mounted to body portion. In one embodiment, the pivotable grip is detachably mounted to body portion by a locking member 28 which includes a fastener 54 having a rod 56 and an abutment portion 57. The endoscopic portion includes a first half-section member 32 and a second half-section member 34 which is preferably removably mounted to the first half-section member and is slidable with respect thereto.