Abstract: A lift-assisted device having a patient support structure, a base, and an undercarriage. The device can be powered by a pneumatic cylinder and a compressed gas source. The undercarriage can be a scissors linkage having at least one first member being slidably connected to the patient support structure an upper end of the first member and pivotally connected to the base at a lower end of the first member, and at least one second scissors linkage member, the second scissors linkage member being pivotally connected to the first scissors linkage member. An upper end of the second member is pivotally connected to the patient support structure, and a lower end of the second member is pivotally connected to the base. The pneumatic cylinder is arranged for moving the upper end of the first member and the lower end of the second member with respect to the patient support structure.

Abstract: A lift-assisted device including a seat portion; a seat support portion which supports the seat portion; a base portion; an undercarriage portion which comprises of at least one scissor linkage member, each scissor linkage member including a first member pivotable connected to a second member near a center portion of the first and second member; a pneumatic bag located between the seat portion and the base portion; a pneumatic cylinder located between the seat portion and the base portion; a pneumatic powering means for powering the pneumatic bag and/or pneumatic cylinder and wherein the first member and second member are slidably connected to the seat portion on one end and fixedly connected to the base portion on an opposite end.

Abstract: A lift-assisted device including a seat portion; a seat support portion which supports the seat portion; a base portion; an undercarriage portion which comprises of at least one scissor linkage member, each scissor linkage member including a first member pivotable connected to a second member near a center portion of the first and second member; a pneumatic bag located between the seat portion and the base portion; a pneumatic cylinder located between the seat portion and the base portion; a pneumatic powering means for powering the pneumatic bag and/or pneumatic cylinder and wherein the first member and second member are slidably connected to the seat portion on one end and fixedly connected to the base portion on an opposite end.

Abstract: A mobile device for transporting patients in the field is power adjustable and includes a frame having a terrain engaging portion connected to a patient supporting portion. The patient supporting portion is height adjustable between a first position adjacent the terrain engaging portion and a second position remote from the terrain engaging portion. A self-contained power device is connected to the frame for adjusting the height of the patient supporting portion relative to the terrain engaging portion. An actuator is operably connected for actuating the self contained power device whereby manual adjustment of the patient supporting portion relative to the terrain engaging portion is avoided. The patient supporting portion has a plurality of sections adjustable relative to each other. The self-contained power device provides adjustment for the sections independently of each other and independently of the height adjustment.