Posterior lumbar retractor system

摘要

A retractor system includes a frame and first and second retractor blades. The frame includes first and second securement features. At least one of the first and second securement features is movable with respect to the frame when the first and second securement features is mounted to the frame. Proximal portions of the first and second refractor blades are secured proximate the first and second securement features respectively. In a first position the first and second refractor blades are laterally opposed. Movement of the securement feature adjusts the angle of at least one of the retractor blades so that at least one of the retractor blades may be adjusted between an acute angle and an obtuse angle to horizontal.

主权项

1. A retractor system comprising:
a spreader bar; a first positioning assembly adapted to secure a first retractor blade, the first positioning assembly including a first lateral positioning assembly configured to facilitate movement of the first positioning assembly laterally along at least a first portion of a length of the spreader bar, the first positioning assembly further including a first angular positioning assembly configured to facilitate angular adjustment of the first retractor blade relative to the spreader bar; a second positioning assembly adapted to secure a second retractor blade, the second positioning assembly including a second lateral positioning assembly to facilitate movement of the second positioning assembly laterally along at least a second portion of the length of the spreader bar, the second positioning assembly further including a second angular positioning assembly configured to facilitate angular adjustment of the second retractor blade relative to the spreader bar; wherein the first and second positioning assemblies are configured to facilitate independent angular and lateral movement of the first and second retractor blades with respect to each other; and wherein said first and second angular positioning assemblies include a rotatable threaded post and a moveable arm engageably mounted to said threaded post for conjoint movement therewith, wherein rotation of said threaded post adjusts the angular position of the respective retractor blade.