Patent ID: 8187178

Claim:
An instrument access device comprising: a wound retractor including: a proximal ring-shaped portion for location externally of a wound opening; a distal ring-shaped portion for location within a wound interior; a retraction portion extending proximally from the distal portion to the proximal portion to retract laterally the sides of the wound opening; and a seal assembly including: a first instrument seal spaced proximally the proximal ring-shaped portion of the wound retractor and laterally movable with respect to the proximal ring-shaped portion; a second instrument seal spaced proximally the proximal ring-shaped portion of the wound retractor and laterally movable with respect to the proximal ring-shaped portion; a third instrument seal spaced proximally the proximal ring-shaped portion of the wound retractor and laterally movable with respect to the proximal ring-shaped portion; and the first instrument seal being larger than the second and third instrument seals; the second and third instrument seals having substantially the same size; and the first, second, and third instrument seals being oriented in a generally triangular at-rest configuration.