Guide for drilling an irregular-shaped body

摘要

The present invention provides a surgical instrument for guiding a drill into bone, the surgical instrument comprising; an elongate body comprising a shaft having a handle towards its proximal end and a head towards its distal end, wherein the head comprises a mouth and jaw assembly, and the shaft comprises a lumen aligned with the longitudinal axis of the shaft and extending from the proximal end of the surgical instrument to the mouth of the shaft, wherein the lumen is suitable for receipt and passage of a drill, and the jaw assembly comprises a pair of opposed reciprocating arms.

主权项

1. A surgical instrument comprising:
an elongate body comprising a shaft having a handle towards its proximal end and a head towards its distal end, the head comprising a mouth and a jaw assembly, wherein the jaw assembly comprises a pair of arms laterally offset from one another about a longitudinal axis of the shaft; an actuating mechanism positioned within an interior of the shaft and having a proximal end and a distal end, the actuating mechanism being adapted to move the arms of the jaw assembly between a first open position, a second substantially closed position, and intermediate positions therebetween, wherein the actuation mechanism is configured to cause each of the arms to rotate relative to the shaft along a different rotational axis; and a lumen aligned with a longitudinal axis of the shaft, extending from a proximal end of the surgical instrument to the mouth of the shaft, wherein the lumen is suitable for receipt and passage of a drill or drillpiece so as to enable the drill or drillpiece to pass through the jaw assembly; wherein the actuating mechanism is interposed between an interior surface of the shaft and an exterior surface of a wall defining the lumen.