Wheeled structure for supporting a patient in a sitting position

Claim 1

Wheeled structure for supporting a patient in a sitting position with the aid of raisable and lowerable arrangements designed for lifting a patient from e.g. a chair, a wheelchair or other kind of seat and for transferring the patient to any desired place while leaving the patient in a sitting position, the base portion of the structure having two substantially lateral side members close to the floor, the ends of these members being provided with carrier wheels and adjustable or movable into different lateral positions for varying the width between the side members, characterized in that a short longitudinal side arm is disposed at either side of the substructure, said side arms being rigidly attached to each other for a fixed distance between them, and laterally adjustable long side members which are connected to the respective adjacent short side member via a pair of link arms for resetting the position of the long members by pivoting the link arms around vertical pivot shafts; and in that one pair of link arms disposed at one end of the substructure has mutually equal length but different length in relation to the other pair of link arms in such a way that the long side members when extended will diverge so that the width between them is greatest in the area above which the patient is seated.