Patient position detection system
A patient movement detector can receive inputs from position sensors, a thermal imaging camera, a video camera, and/or triangulation data. Based on one or more of these inputs, the patient movement detector can perform one or more of the following: fall prevention detection, bedsore prevention analysis, patient location detection, and patient walk test scoring. The patient movement detector can, for example, output a fall warning alarm, a bedsore warning alarm, patient location information, and walk test scores.
1. A system for triggering a medical bedsore warning alarm, the system comprising:
a wireless monitor configured to couple to an armband attached to a patient occupying a patient bed, the wireless monitor configured to receive physiological information from a physiological sensor coupled with the patient and to wirelessly transmit physiological data reflective of the physiological information to a bedside monitor;
a removable battery that powers the wireless monitor, the removable battery configured to connect with the wireless monitor and configured to be removed from the wireless monitor and then docked with the bedside monitor in order to recharge;
a wireless position sensor disposed in the wireless monitor or in the armband such that the wireless position sensor is configured to be coupled with the patient; and
a patient movement detector comprising one or more hardware processors configured to:
wirelessly receive, from the wireless position sensor, movement data indicative of movement or lack of movement of the patient during a period of time, wherein the wireless position sensor includes at least one of:
an accelerometer, a gyroscope, or a compass;
update the movement data to produce updated movement data based on triangulation data received from a plurality of wireless access points;
determine, based at least in part on the updated movement data, that a portion of the patient has not moved or has moved less than a threshold amount during the period of time;
receive, from an optical-based sensor, a baseline optical-based profile of the patient;
receive additional optical-based profiles of the patient from the optical-based sensor, wherein the additional optical-based profiles are captured during the period of time;
determine whether a degree of change in profile data between the additional optical-based profiles and the baseline optical-based profile has not met or exceeded a threshold degree of change; and
transmit, over a network, an indication of a bedsore warning alarm, wherein said transmitting is responsive to a combination of both of the following: determining that the degree of change in the profile data has not met or exceeded the threshold degree of change, and determining that the portion of the patient has not moved or has moved less than a threshold amount during the period of time based at least in part on the updated movement data received from the wireless position sensor.
2. The system of claim 1 , wherein the patient movement detector is further configured to:
determine, based at least in part on the updated movement data, a confidence that the patient has not moved or has moved less than a threshold amount during the period of time.
3. The system of claim 1 , wherein the indication of the bedsore warning alarm is transmitted, over the network, to a remotely located caregiver for notification.