Patent ID: 8663271

Claim:
An in-dwelling port for permitting access into a body cavity, the port comprising: an external portion configured for placement outside of an incision and defining a proximal port opening, the proximal port opening having a proximal port opening diameter, and wherein the external portion has a first surface positioned to face away from a body and a second surface arranged to contact an external portion of a body surrounding the incision; and a flexible bellows portion configured to be movable inside the body cavity between an elongated position and a collapsed position, the flexible bellows portion having a first end attached to the second surface of the external portion and defining an unobstructed distal port opening opposite the first end, the unobstructed distal port opening having a distal port opening diameter, wherein the distal port opening diameter is less than the proximal port opening diameter; and wherein an internal passage of the flexible bellows portion is configured for continuous fluid communication with the body cavity via the unobstructed distal port opening.