Bi-planar persuader

摘要

Surgical instruments for spinal surgery. More specifically, a bi-planar rod persuader for urging a spinal rod into a screw, and methods regarding the same. The bi-planar rod persuader may include an implant holder, which may also include a holding sleeve. A securing foot may be attached to the distal end of the holding sleeve, and the holding sleeve may also include a threaded opening at the proximal end for receiving a stem that drives the securing foot between a first position and second position. The implant holder may also include a threaded part to engage a reduction knob. A handle assembly may also be provided, which may include two pivotally attached arms. A rod hook may be connected to one of the arms and a guide attached to the other of the arms.

主权项

1. A medical device adapted to be secured to a screw, comprising:
an implant holder that includes a holding sleeve and a securing foot pivotally attached to a distal end of the holding sleeve, the holding sleeve defining a threaded opening at a proximal end thereof that receives a stem that drives the securing foot between a first position and a second position, the implant holder including a threaded part extending at an angle relative to the proximal end of the sleeve, the stem having a securing cap extending from a proximal end thereof such that a distance between the securing cap and a distal end of the stem is predetermined to prevent over-tightening or over-loosening of the stem, a portion of the stem proximate to the securing cap defining a threaded region extending over less than a length of the stem, wherein a portion of the securing foot has a known geometry complementary to a known geometry of the screw, and wherein the securing foot is sized and configured to be engaged to the screw when in the second position and disengaged from the screw when in the first position.