BATTERY MANAGEMENT FOR PATIENT SUPPORT APPARATUSES

摘要

A patient support apparatus, such as a bed, recliner, cot, stretcher, operating table, or the like, includes battery-powered circuitry whose functions are reduced, but not eliminated, as the battery charge level falls below a threshold. Electrical power may be cut off to one or more components of the battery-powered circuitry while still providing battery-supplied electrical power to the other components of the circuitry. A user interface provides battery status data, including a replacement status of a rechargeable battery, and allows a user to select different formats for displaying battery status data. Such formats include displays of battery charge level information not only in manners specific to the battery, but also in manners relative to the patient support apparatus, such as displays of how many, or how much of, one or more functions the patient support apparatus is able to perform based on the battery's current charge level.

主权项

1. A patient support apparatus comprising:
a frame; a plurality of wheels; a support surface supported by the frame and adapted to support a patient thereon; an actuator for moving at least a portion of the support surface; a battery for powering the actuator; and a control system adapted to monitor a state of the battery, to compare the state of the battery to a threshold and, when the state is lower than the threshold, to disable movement of the actuator in a first manner but enable movement of the actuator in a second manner.