Patent ID: 9131832
Filing Date: 2015-09-15
Classification: A61B

Abstract:
1. An access and positioning arrangement for use in an endoscopic surgical procedure in which first and second surgical tools are utilized, said arrangement comprising: a hub having a head central passage therethrough, the hub being configured to receive the first surgical tool therein with the first surgical tool extending through the head central passage; and a cannula assembly connected to the hub; the cannula assembly defining a first fully enclosed chamber extending substantially along a length of the cannula assembly, the first fully enclosed chamber being coextensive with the head central passage such that the first surgical tool is configured to extend through the hub and the first fully enclosed chamber and to a distal end of the cannula assembly; the cannula assembly defining a second fully enclosed chamber that extends along only a portion of the length of the cannula assembly and spaced from the hub, the second fully enclosed chamber having an entrance and an exit, with the entrance and the exit being spaced from the hub for allowing the second surgical tool to extend through the second fully enclosed chamber without also passing through the hub or the first fully enclosed chamber; the first fully enclosed chamber and the second fully enclosed chamber being substantially parallel such that the first surgical tool and the second surgical tool can extend substantially in parallel from the distal end of the cannula assembly; the cannula assembly further including a semi-circular member; the second fully enclosed chamber being circular; and the semi-circular member having a center of curvature co-linear with a central longitudinal axis of the second fully enclosed chamber.