Patent ID: 9629673
Date: 2017-04-25
CPC Classifications: A61B,F16B

Claim:
1. A method of mounting a base plate to an underlying biological substrate, the method comprising: coupling a nut within a first through hole disposed in a base plate, the first through hole defining a first longitudinal axis extending the length thereof, the first through hole at least partially defined by a flange having an interior circumferential wall, the base plate including a first anti-rotation feature, and the nut comprising: inserting a screw into each of the first and second through holes so that at least a portion of a shaft of the screw extends beyond the interior circumferential wall of the base plate, where at least a head of the screw is retained within the first and second through holes, wherein the shaft comprises a first threaded portion and a second threaded portion, the first threaded portion having a first diameter and the second threaded portion having a second diameter that is greater than the first diameter, the second threaded portion being located between the head and the first threaded portion, and wherein the first threaded portion is insertable at a selected angle about and between 0 degrees and a maximum angle relative to the first longitudinal axis; advancing the shaft of the screw through the second through hole to threadably engage the second threaded portion of the shaft of the screw with the nut; rotationally advancing the second threaded portion of the screw with respect to the nut so that the head of the screw and the engaging wall of the nut are urged into compressive engagement with the flange and secure the selected angle of the first threaded portion.