| 摘要 |
<p>TILTING SYSTEM FOR ADJUSTABLE HOSPITAL BED : Independently operable adjusting or lifting mechanisms (16,18) are provided at the head and foot ends of the fixed lower base frame (10) of an adjustable hospital bed in order to facilitate independent height adjustment of the head and foot ends of the bed's movable upper frame (12), on which is mounted a mattress supporting structure (14). Logic circuitry (197-203,207-211,282,248-252, 257,67,258,68,218-222,181,182) controls the actuation of the adjusting mechanisms to position the bed as desired. When trendelenburg positioning is desired, and is so commanded by the operator, the logic circuitry causes the head and foot adjusting mechanisms to automatically function as necessary to tilt the upper frame directly to a trendelenburg position regardless of its position at the time the command is issued. Conversely, in response to a reverse trendelenburg command the upper frame is automatically tilted directly from its present position to a reverse trendelenburg position. with such direct and immediate access to trendelenburg and reverse trendelenburg positions, considerable time can be saved. Moreover, only simple steps are required on the part of the operator.</p> |
