Patent ID: 9195799
Filing Date: 2015-11-24
Classification: A61B,G16H

Abstract:
1. A patient monitoring system for monitoring vital signs, comprises: one or more sensors, wherein the sensors measure vital signs; a monitor station; a memory device; and one or more portable monitoring devices, wherein monitored data based on the measured vital signs is wirelessly transmitted from the sensors to the monitor station, wherein the monitor station issues one or more alarms to certain ones of the portable monitoring devices as a function of the monitored data, wherein a portion of the monitored data that pertains to the alarms is wirelessly transmitted to the certain ones of the portable monitoring devices and displayed by the certain ones of the portable monitoring devices, wherein one of the sensors is a pulse oximeter, wherein the pulse oximeter comprises a vital sign data collector, a battery board, and a patch, wherein the vital sign data collector and the battery board are detachable from the patch, wherein the vital sign data collector comprises a red light emitting diode (“LED”), an infrared (“IR”) LED, and a photodiode (“PD”), wherein the pulse oximeter has a first standby state, a second standby state, and a third standby state, wherein in the first standby state, the oximeter determines whether an object is under measurement by the oximeter, wherein in the third standby state, the oximeter determines whether light readings from the red LED and infrared LED are within an acceptable predefined range, wherein in the second standby state, the oximeter goes into a power saving mode, wherein IR data samples are collected by pulsing the infrared LED over a period of time and reading values from the PD to generate a heartbeat signal and wherein the pulse oximeter tracks local minimum values and local maximum values of the IR data samples, wherein the local minimum values and the local maximum values of the IR data samples and sampling times for the local minimum values and the local maximum values are stored in an array of eight entries, wherein the array is stored in the memory device, and wherein the array is a first-in first-out array, and wherein a next local maximum value and a next local minimum value are inputted into array.