Patent ID: 9295523
Filing Date: 2016-03-29
CPC Classification: A61B

Claim Text:
1. A cannula seal, comprising: a base portion that engages with a cannula, the base portion including an inner wall defining an interior space sized and shaped to receive an instrument shaft; a seal portion coupled with the base portion, the seal portion including at least a first lip and a second lip, the first lip extending inwardly and distally from the inner wall of the base portion to a first lip edge in the interior space, and the second lip extending inwardly and proximally from the inner wall of the base portion to a second lip edge in the interior space, the first lip edge and second lip edge being separated by a gap a fluid channel extending through the base portion to a fluid channel exit in the inner wall of the base portion between the first lip and the second lip; the first lip and second lip being sized and shaped to slidably seal against an outer surface of the instrument shaft inserted into the interior space.