A surgical access device, comprising: a cannula body including a housing and an elongated portion extending distally from the housing, the elongated portion defining a longitudinal axis and defining a channel extending therethrough; and an anchor disposed in mechanical cooperation with the elongated portion of the cannula body and being longitudinally translatable relative to the elongated portion, the anchor defining an aperture and including a ratchet mechanism configured to selectively lock a size of the aperture, wherein the ratchet mechanism of the anchor includes: a C-shaped clip, wherein the clip includes a first arcuate section and a second arcuate section, the first arcuate section being movable relative to the second arcuate section, such that movement of the first arcuate section relative to the second arcuate section changes the size of the aperture defined by the anchor; and a handle (240, 240'), wherein the handle is pivotable relative to the clip, wherein the ratchet mechanism includes: a first plurality of teeth disposed on the second arcuate section of the clip; and a second plurality of teeth disposed on the handle (240, 240') of the clip and configured to engage the plurality of teeth of the second arcuate section of the clip in a ratcheting manner, wherein the handle is pivotally attached to the first arcuate section of the clip, whereby the handle is configured to be pivoted away from the second arcuate section of the clip to unlock the plurality of teeth of the handle from the plurality of teeth of the second arcuate section; and wherein the anchor further includes a sleeve radially surrounding at least a portion of the C-shaped clip. a cannula body including a housing and an elongated portion extending distally from the housing, the elongated portion defining a longitudinal axis and defining a channel extending therethrough; and an anchor disposed in mechanical cooperation with the elongated portion of the cannula body and being longitudinally translatable relative to the elongated portion, the anchor defining an aperture and including a ratchet mechanism configured to selectively lock a size of the aperture, wherein the ratchet mechanism of the anchor includes: a C-shaped clip, wherein the clip includes a first arcuate section and a second arcuate section, the first arcuate section being movable relative to the second arcuate section, such that movement of the first arcuate section relative to the second arcuate section changes the size of the aperture defined by the anchor; and a handle (240, 240'), wherein the handle is pivotable relative to the clip, wherein the ratchet mechanism includes: a first plurality of teeth disposed on the second arcuate section of the clip; and a second plurality of teeth disposed on the handle (240, 240') of the clip and configured to engage the plurality of teeth of the second arcuate section of the clip in a ratcheting manner, wherein the handle is pivotally attached to the first arcuate section of the clip, whereby the handle is configured to be pivoted away from the second arcuate section of the clip to unlock the plurality of teeth of the handle from the plurality of teeth of the second arcuate section; and wherein the anchor further includes a sleeve radially surrounding at least a portion of the C-shaped clip. a C-shaped clip, wherein the clip includes a first arcuate section and a second arcuate section, the first arcuate section being movable relative to the second arcuate section, such that movement of the first arcuate section relative to the second arcuate section changes the size of the aperture defined by the anchor; and a handle (240, 240'), wherein the handle is pivotable relative to the clip, wherein the ratchet mechanism includes: a first plurality of teeth disposed on the second arcuate section of the clip; and a second plurality of teeth disposed on the handle (240, 240') of the clip and configured to engage the plurality of teeth of the second arcuate section of the clip in a ratcheting manner, wherein the handle is pivotally attached to the first arcuate section of the clip, whereby the handle is configured to be pivoted away from the second arcuate section of the clip to unlock the plurality of teeth of the handle from the plurality of teeth of the second arcuate section; and wherein the anchor further includes a sleeve radially surrounding at least a portion of the C-shaped clip.