Patent ID: 7537565

Claim:
A surgical retractor comprising: a retractor body; a first retractor arm having a first portion and a second portion, the first portion attached to the retractor body and the second portion rotatably attached to the first portion and configured to retain a first retractor blade, wherein the second portion rotates about an axis parallel to a line drawn along a length of the first retractor arm; a second retractor arm having a third portion and a fourth portion, the third portion attached to the retractor body and the fourth portion rotatably attached to the third portion and configured to retain a second retractor blade, wherein the fourth portion rotates about an axis parallel to a line drawn along a length of the second retractor arm; a third retractor arm having a fifth portion and a sixth portion, the fifth portion attached to the retractor body and the sixth portion rotatably attached to the fifth portion and configured to retain a third retractor blade, wherein the sixth portion rotates about an axis perpendicular to a line drawn along a length of the third retractor arm; and a spring located between the first and second portions, the spring biasing the second portion into a position such that the first retractor blade is substantially normal to a line drawn parallel to the first portion of the first retractor arm.