MINIMALLY INVASIVE SURGICAL RETRACTOR WITH AN EXPANDED FIELD OF VISION

摘要

A surgical retractor includes a first component and a second component. The first component includes a ring structure and a conical outer wall. The ring structure has a first opening and defines a first plane. The outer wall forms a second opening in communication with the first opening and extends below the ring structure at an acute angle with respect to the first plane. The second component includes a top structure and conical inner wall. The top structure has a third opening and defines a second plane. The inner wall forms a fourth opening in communication with the third opening and extends below the top structure at an acute angle with respect to the second plane. 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.