Patent ID: 7805784
Filing Date: 2010-10-05
Classification: A61G,A61M,B60T,G16H

Abstract:
1. A patient support apparatus comprising: a patient support; and an elevation mechanism for raising or lowering said patient support relative to a ground surface, said elevation mechanism having a first pair of arms and a second pair of arms, said arms pivotally coupled to said patient support at a first plurality of pivot connections, each pair of said arms having a pivot shaft for pivotally mounting said arms adjacent the ground surface and a plurality of intermediate pivot connections intermediate said first pivot connections and said pivot shafts and movable relative to said pivot shafts; an actuator coupled to each of said pivot shafts for rotating said pivot shafts for extending or contracting said arms about said plurality of intermediate pivot connections wherein said patient support moves between uppermost raised or lowermost lowered positions, and said uppermost raised position being substantially vertically aligned with said relative lowermost lowered position.