A sterile device intended to be used with a radial surgical retractor to provide an adjustable membrane that functions as an iris valve seal and access port. It is secured to the retaining latches of the external ring of the inserted retractor whereby the operator can open/close the port by turning the upper seal ring (the action revolves the thin membrane similar to the iris shutter of a camera). It is used to facilitate surgical access while helping to maintain pneumoperitoneum during colorectal, urological, gynaecological, or general abdominal surgical procedures. This is a single-use device.
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