Surgical rib retractor

A surgical rib retractor, comprising:

• a housing having a first shoulder, wherein the housing defines an actuator guide opening;
• a body comprising a second shoulder and a drive gear, the body pivotably coupled to the housing;
• a first arm unit comprising a first frame, pivotably coupled to the first shoulder and configured to atraumatically receive tissue;
• a second arm unit comprising a first frame, pivotably coupled to the second shoulder and configured to atraumatically receive tissue;
• a first arm actuator constrained to be rotatable relative to the first shoulder and coupled to the first arm unit to pivot the first arm unit as the first arm actuator is rotated;
• a second arm actuator constrained to be rotatable relative to the second shoulder and coupled to the second arm unit to pivot the second arm unit as the second arm actuator is rotated;
• a drive actuator configured to pivot the body relative to the housing, comprising:
• an actuation gear;
• a knob;
• a pawl arm deflection portion;
• and
• an actuation key configured to engage at least one of the first and second arm actuators for rotation;
• and
• wherein the actuator guide opening is sized to accept the actuation gear and align it with the drive gear for turning the drive gear.

A surgical rib retractor, comprising:

• a housing having a first shoulder;
• a body pivotably coupled to the housing and having a second shoulder;
• a first arm unit comprising a first frame, pivotably coupled to the first shoulder and configured to atraumatically receive tissue;
• a second arm unit comprising a first frame, pivotably coupled to the second shoulder and configured to atraumatically receive tissue;
• a first arm actuator constrained to be rotatable relative to the first shoulder and coupled to the first arm unit to pivot the first arm unit as the first arm actuator is rotated;
• and
• a second arm actuator constrained to be rotatable relative to the second shoulder and coupled to the second arm unit to pivot the second arm unit as the second arm actuator is rotated.