Patent ID: 8413273
Filing Date: 2013-04-09
Classification: A61G

Abstract:
1. A patient support apparatus comprising a frame including a patient support deck, the patient support deck being movable between a horizontal position to support a patient in a lying position and a chair egress position to support the patient in a sitting position, a lift system operable to support the patient support deck relative to an underlying floor at different heights, a control system to command operation of the lift system, the control system receiving data indicative of a height of the patient supported on the patient support deck, the control system determining an elevation at which the lift system is to support the patient support deck when the patient support deck is in the chair egress position based on the height of the patient, and a mattress supported on the patient support deck, the mattress having at least one inflatable bladder in a region of the mattress that supports the patient's buttocks when the patient support deck is in the chair egress position supporting the patient in the sitting position, the control system including a pneumatic control system portion operable to inflate and deflate the at least one inflatable bladder, and the control system determining whether to deflate the at least one inflatable bladder when the patient support deck is in the chair egress position based on a weight of the patient.