| 摘要 |
A patient support apparatus comprises a base frame (10) supporting lifting arms (15) on either side. The lifting arm (15) at on end of the base frame (10) is connected by a pivoting and sliding joint (8) and the lifting arm (15) at the other end by a pivoting joint (7). The lifting arms (15) support an upper frame (20), via pivoting and sliding joints (16). Stabilizing links (5, 6) are connected to the middle of each lifting arm and to the upper frame. Linear actuators (30, 31) act on the top ends (16) of the lifting arms (15) to raise, lower or tilt the upper frame (20). The mechanism achieves an exceptionally low minimum height whilst still maintaining hoist clearance under the base frame (10). The upper frame (20) may be moved to a variety of working heights and achieves high angles of Trendelenburg tilts.
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