Patient monitoring system

Abstract

A patient monitoring system can be used in multiple locations to monitor a patient using distinct monitoring strategies. For instance, the same system can be used both on a chair and on a bed. When a base unit of the system is attached to a chair to monitor an area or volume in the vicinity of the chair, it is typically set to sound an alarm when a transmitted signal takes too long to be reflected back to the base unit, indicating that the patient has moved beyond the proper range for sitting. The system also features remote unit(s) and module(s) that can be attached to the base unit, directly or indirectly, to facilitate perimeter monitoring when a patient is lying in a bed. In this case, the system is typically set to sound an alarm when a transmitted signal is interrupted by the patient and reflected back, indicating that the patient may have attempted to get out of bed.

Dependencies are inferred from the claim text.