| 摘要 |
A bed with adjustable positions comprises head, foot and central units. The head and foot units include respectively an upper and lower structure and a linear actuato r for elevating or lowering the upper structure with respect to the lower structure. Two opposite upper structures can be elevated simultaneously or separately. The central unit is provided with a central platen to which a pair of side platens is hinged. A rotation subassembly is located in head and foot units respectively and is intended to turn the central unit, while an inclination subassembly is used to incline the side platens, so as to prevent the patient from sliding during rotation. A pneumatic bag subassembly is formed from upp er and lower sections, which can be independently inflated or deflated. A reaction board, having a width slightly narrower than central platen and a length substantially equ al to the upper section, is placed on the latter. Central unit includes as well a pneumatic actuating subassembly for supplying air to the upper and lower sections. An articulate d mattress, formed from a central segment to which two lateral segments are longitudinal ly hinged, is placed on upper and lower sections, the reaction board being interposed between the upper section and the mattress. A pair of side rail assemblies is used with the central unit. Each side rail assembly is attached to an exterior long margin of a side platen. |
