Patent ID: 8550993
Filing Date: 2013-10-08
Classification: A61B

Abstract:
1. A surgical retractor comprising: a first component including a first top structure and a conical outer wall, the first top structure having a first opening, the conical outer wall extending below the first top structure to form an ellipse-shaped second opening in communication with the first opening; a second component including a second top structure and a conical inner wall, the second top structure having a third opening, the conical inner wall extending below the second top structure to form an ellipse-shaped fourth opening in communication with the third opening; and wherein the second top structure is disposed at least partially inside the first top structure such that the second component is rotatably adjustable with respect to the first component from a first rotational configuration to a second rotational configuration in which the ellipse-shaped second opening and the ellipse-shaped fourth opening define a combined opening that is in communication with the third opening to provide an expanded field of vision.