A surgical device (5) for application in a treatment performed on the human or animal body (1) with the aim of providing access to a surgical site in the body, includes at least one inflatable chamber (70, 71, 72) which can be inflated from a collapsed state to an expanded state, in which expanded state the device is suitable for exerting a force on an organ or tissue at the surgical site, at least one elongated flexible member (8, 80), which member at its proximal end (801) is operatively connected to the device, and which member has a length to allow the distal end (800) of the member to be fixed to a fixation site (100, 101) outside of the body, and methods of using this device.
