The present disclosure relates to a valve (100) or seal of the type adapted to allow the introduction of an instrument or object therethrough. In particular, the valve (100) disclosed herein is adapted to maintain a substantially fluid-tight seal with a surgical instrument and is used during a minimally invasive surgical procedure. The valve disclosed herein incorporates one or more bladder members (106) adapted to retain a fluid therein that are associated by one or more interstitial members (108).
