Patent ID: 8303497
Filing Date: 2012-11-06
Classification: A61B

Abstract:
1. A surgical retractor, the surgical retractor comprising: a first component including a ring structure and conical outer wall, the ring structure having a first opening and defining a first plane, the conical outer wall forming an ellipse-shaped second opening in communication with the first opening, the conical outer wall extending below the ring structure at an acute angle with respect to the first plane; a second component including a top structure and a conical inner wall, the top structure having a third opening and defining a second plane, the conical inner wall forming an ellipse-shaped fourth opening in communication with the third opening, the conical inner wall extending below the top structure at an acute angle with respect to the second plane; and wherein the top structure of the second component is disposed at least partially inside the ring structure of the first component 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.