Patent ID: 7657951

Claim:
A patient extraction lift apparatus comprising, in combination: (a) a first horizontally extending, elongate, cantilever ground support leg having a first connection end and a second opposite end spaced from the first end; (b) a second generally horizontally extending, elongate, cantilever ground support leg having a first connection end and a second opposite end spaced from the first end of the second leg, said first and second legs generally parallel and spaced horizontally apart to define an interval; (c) a cross member attached to the first connection ends of the first and second spaced ground support legs to form a generally three sided, generally horizontal ground support frame having said spaced first and second cantilever ground support legs extending generally horizontally outwardly from the cross member, said support legs each providing cantilever support for the lift apparatus, said first and second legs each including wheels attached to their respective connection end and opposite end; (d) a slidable bracket fitted over and slidable on the cross member between the first and second legs, said bracket including a locking element for retaining the slidable bracket in a fixed position on the cross member; (e) an upwardly extending patient support post having a shape configured for non-rotation thereof, said post fixed to the slidable bracket in the interval intermediate the elongate, cantilever support legs, said slidable bracket and fixed post slidably fitted to the frame cross member for simultaneous lateral movement along the cross member in the interval between the first and second spaced, ground support legs to enable positioning the fixed patient support post to the cross member at a plurality of positions intermediate the spaced legs; (f) a generally horizontal boom non-rotatably fixed to and projecting from the fixed support post at a level elevated from the ground support legs, said boom having an outer end, said boom extending generally in the direction of the first connection ends toward the opposite ends of the cantilever legs, said post fixed to said bracket slidably mounted to said cross member and said boom is non-rotatably fixed to said post to maintain said boom extending in said direction of said cantilever legs and so that said post will not rotate; and (g) a patient support sling attached to the outer end of said boom for supporting a patient.