US Patent 8206357 Articulating surgical portal apparatus with spring

A surgical portal apparatus is provided which includes a housing and a portal member. The portal member is connected to the housing which extends therefrom. The portal member has a longitudinal axis which includes a longitudinal passageway for permitting a surgical object to pass therethrough. A seal mount is mounted to the housing and has an internal seal adapted to establish a substantial sealed relation with the surgical object, the seal mount adapted to articulate relative to the housing between a first position relative to the housing and at least one second position relative to the housing, the seal mount being normally biased toward the first position.