Surgical instrument guide assembly

A surgical instrument guide assembly comprising:

• a main guide portion comprising:
• a shaft portion extending along a longitudinal axis;
• a body portion extending along the longitudinal axis, wherein a proximal end of the shaft portion is disposed at or adjacent to a distal end of the body portion;
• a mating portion disposed at or adjacent to the proximal end of the body portion, the mating portion including one or more engagement features;
• a first lumen extending along the longitudinal axis from a proximal end at or adjacent to a proximal end of the body portion to a distal end at or adjacent to a distal end of the shaft portion;
• a second lumen extending along the longitudinal axis from a proximal end at or adjacent to the proximal end of the body portion to a distal end at or adjacent to the distal end of the shaft portion, wherein the first lumen and the second lumen are separated by a wall that extends from the proximal end of the first lumen to the distal end of the first lumen such that the first lumen is not in fluid communication with the second lumen;
• and
• a seal portion coupled to the proximal end of the body portion of the main guide portion, the seal portion comprising:
• a first port and a second port formed in a seal wall of the seal portion;
• and
• one or more engagement features,
• wherein the seal portion is selectively rotatable from a first position to a second position, wherein the seal portion is a single, unitary part, and wherein the one or more engagement features of the seal portion are configured (a) to removably engage the one or more engagement features of the mating portion such that the seal portion is removable from the main guide portion and (b) to rotatably engage the corresponding one or more engagement features of the mating portion such that the seal is configured to rotate between the first position and the second position about the one or more engagement features of the mating portion;
• and
• wherein (a) in the first position, the first port is at least partially aligned with the proximal end of the first lumen and the second port is at least partially aligned with the proximal end of the second lumen such that the first port is adapted to removably receive a portion of a first surgical instrument and the second port is adapted to removably receive a portion of a second surgical instrument and (b) in the second position, the first port is at least partially aligned with the proximal end of the first lumen such that the first port is adapted to removably receive the portion of the first surgical instrument and the proximal end of the second lumen is remote from the second port such that the proximal end of the second lumen is obstructed by a portion of an interior surface of the seal wall of the seal portion.