IP Library › Granted Patent US 12,721,566
Granted Patent B2
US 12,721,566 · App. 17/693,655 · Granted Sep 1, 2026

Display of monitored patient position information

Inventors: Barrett J. Larson (Palo Alto, CA); Mark V. Weckwerth (Pleasanton, CA); Daniel Z. Shen (Palo Alto, CA); Charles Matthew Peterson Hammond (Pleasant Hill, CA)
Assignee: LEAF HEALTHCARE, INC.
A61B5/447A61B5/002A61B5/02055A61B5/1113A61B5/6801A61B5/6843A61B5/7275A61B5/7282A61G7/057A61G7/05769G16H20/30G16H20/40G16H40/20G16H40/63G16H50/20A61B5/0024A61B5/024A61B5/0261A61B5/0531A61B5/0816A61B5/1115A61B5/1116A61B5/1117A61B5/1118A61B5/113A61B5/14551A61B5/4833A61B5/6892A61B5/7246A61B7/00A61B2562/02A61B2562/0214A61B2562/0219A61B2562/0223A61B2562/0247A61B2562/0261A61B2562/029A61B2562/043A61G2203/32A61G2203/34A61G2203/42A61G2203/46A61G2205/60
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Quick Facts
Patent No.
US 12,721,566
App. No.
17/693,655
Granted
Sep 1, 2026
Kind
B2
Abstract

A system for monitoring medical conditions including pressure ulcers, pressure-induced ischemia and related medical conditions comprises at least one sensor adapted to detect one or more patient characteristic including at least position, orientation, temperature, acceleration, moisture, resistance, stress, heart rate, respiration rate, and blood oxygenation, a host for processing the data received from the sensors together with historical patient data to develop an assessment of patient condition and suggested course of treatment, including either suspending or adjusting turn schedule based on various types of patient movement. The sensor can include one or more of bi-axial or tri-axial accelerometers, magnetometers and altimeters as well as resistive, inductive, capacitive, magnetic and other sensing devices, depending on whether the sensor is located on the patient or the support surface, and for what purpose. In some embodiments, the sensor can be self-contained in that it can detect orientation and suggest repositioning independent of a host.

Claims (49)

1 . A system for monitoring a patient, comprising:

a processor configured to:

receive orientation sensor data from at least one orientation sensor of a sensor device secured to or worn by the patient, the orientation sensor data representing the patient's orientation in multiple patient positions over time; and

determine a respective measure of cumulative pressurization experienced by the patient in each of the multiple patient positions based on the orientation sensor data generated by the at least one orientation sensor of the sensor device secured to or worn by the patient; and

an array of multiple selectively controllable display elements arranged in a sequential pattern corresponding with a sequence of the multiple patient positions defined by a rotation of the patient;

wherein the array of multiple selectively controllable display elements are electronically controllable to indicate:

an automatically detected patient turn from a first patient position of the multiple patient positions to a second patient position of the multiple patient positions, by automatic movement of a visual indication of a current orientation of the patient across the array of display elements from a first display element corresponding with the first patient position to a second display element corresponding with the second patient position; and

the respective measure of cumulative pressurization experienced by the patient in at least one of the multiple patient positions.

2 . The system of claim 1 , wherein the multiple selectively controllable display elements comprise multiple LEDs.

3 . The system of claim 1 , wherein the at least one orientation sensor comprises at least one accelerometer, and the orientation sensor data comprises acceleration data.

4 . The system of claim 1 , wherein the processor is further configured to:

access a turn protocol for the patient;

determine, based on the orientation sensor data, whether the patient's orientation over time complies with the turn protocol, and

selectively control the multiple display elements based on whether the patient's orientation over time complies with the turn protocol.

5 . The system of claim 1 , wherein the array of multiple selectively controllable display elements are selectively controllable to indicate a particular patient position, from the multiple patient positions, having a greatest measure of cumulative pressurization experienced by the patient.

6 . The system of claim 1 , wherein the array of multiple selectively controllable display elements are configured to indicate each patient position, from the multiple patient positions, having a respective measure of cumulative pressurization experienced by the patient above a threshold pressurization level.

7 . The system of claim 1 , wherein the array of multiple selectively controllable display elements comprises an arcuate array of the controllable display elements.

8 . The system of claim 1 , wherein the array of multiple selectively controllable display elements is controllable by the processor to display multiple different illuminated colors indicating the respective measure of cumulative pressurization experienced by the patient in each of the multiple patient positions.

9 . The system of claim 1 , wherein the array of multiple selectively controllable display elements electronically controllable to indicate the respective measure of cumulative pressurization experienced by the patient in the at least one of the multiple patient positions comprises the array of multiple selectively controllable display elements electronically controllable to indicate an accumulated amount of time spent by the patient in the at least one of the multiple patient positions.

10 . A system for displaying information related to a patient,

the system comprising:

an array of multiple display elements arranged in a sequential pattern corresponding with a sequence of multiple patient positions defined by a rotation of the patient;

a processor configured to selectively control the array of multiple display elements based on:

(a) sensor-based orientation data indicating the patient's orientation in the multiple patient positions over time; and

(b) sensor-based pressurization data indicating a respective measure of cumulative pressurization experienced by the patient in each of the multiple patient positions based on the sensor-based orientation data;

wherein the array of multiple display elements are selectively controllable by the processor to indicate:

(a) an automatically detected patient turn from a first patient position of the multiple patient positions to a second patient position of the multiple patient positions, by automatic movement of a visual indication of a current orientation of the patient across the array of display elements from a first display element corresponding with the first patient position to a second display element corresponding with the sensor-based orientation data; and

(b) the respective measure of cumulative pressurization experienced by the patient in at least one of the multiple patient positions.

11 . The system of claim 10 , wherein the processor is configured to:

receive orientation sensor data generated by at least one orientation sensor of a sensor device secured to or worn by the patient;

determine the sensor-based orientation data and the sensor-based pressurization data based on the received orientation sensor data.

12 . The system of claim 10 , wherein the multiple display elements are configured to indicate a particular patient position, from the multiple patient positions, having a greatest measure of cumulative pressurization experienced by the patient.

13 . The system of claim 10 , wherein the multiple display elements are configured to indicate each patient position, from the multiple patient positions, having a respective measure of cumulative pressurization experienced by the patient above a threshold pressurization level.

14 . The system of claim 10 , wherein the array of multiple display elements comprises an arcuate array of controllable display elements.

15 . The system of claim 10 , wherein the array of multiple display elements is controllable by the processor to display multiple different illuminated colors indicating the respective measure of cumulative pressurization experienced by the patient in each of the multiple patient positions.

16 . The system of claim 10 , wherein the array of multiple display elements selectively controllable by the processor to indicate the respective measure of cumulative pressurization experienced by the patient in the at least one of the multiple patient positions comprises the array of multiple display elements selectively controllable by the processor to indicate an accumulated amount of time spent by the patient in the at least one of the multiple patient positions.

17 . A method for monitoring a patient, comprising:

receiving orientation sensor data from at least one orientation sensor of a sensor device secured to or worn by the patient, the orientation sensor data representing the patient's orientation in multiple patient positions over time; and

determining a respective measure of cumulative pressurization experienced by the patient in each of the multiple patient positions based on the orientation sensor data generated by the at least one orientation sensor of the sensor device secured to or worn by the patient; and

controlling a display device including an array of multiple display elements arranged in a sequential pattern corresponding with a sequence of the multiple patient positions defined by a rotation of the patient;

wherein controlling the display device includes selectively controlling the array of multiple display elements to indicate:

an automatically detected patient turn from a first patient position of the multiple patient positions to a second patient position of the multiple patient positions, by automatic movement of a visual indication of a current orientation of the patient across the array of display elements from a first display element corresponding with the first patient position to a second display element corresponding with the second patient position; and

the respective measure of cumulative pressurization experienced by the patient in at least one of the multiple patient positions.

18 . The method of claim 17 , comprising selectively controlling the array of multiple display elements to indicate each patient position, from the multiple patient positions, having a respective measure of cumulative pressurization experienced by the patient above a threshold pressurization level.

19 . The method of claim 17 , comprising:

accessing a turn protocol for the patient;

determining, based on the orientation sensor data, whether the patient's orientation over time complies with the turn protocol, and

selectively controlling the array of multiple display elements based on whether the patient's orientation over time complies with the turn protocol.

20 . The method of claim 17 , wherein controlling the display device includes selectively controlling the array of multiple display elements to indicate the respective measure of cumulative pressurization experienced by the patient in the at least one of the multiple patient positions which comprises controlling the display device to selectively control the array of multiple display elements to indicate an accumulated amount of time spent by the patient in the at least one of the multiple patient positions.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 14, 2022
From: LARSON, BARRETT J.; SHEN, DANIEL Z.; WECKWERTH, MARK V.; HAMMOND, CHARLES MATTHEW PETERSON
To: LEAF HEALTHCARE, INC.
Reel/Frame 059256/0095 →
Continuity (10)
Continuation 15189086 · Jun 22, 2016
Division 13070189 · Mar 23, 2011
Continuation In Part 15187516 · Jun 20, 2016
Continuation In Part 15183739 · Jun 15, 2016
Provisional Application 61438732 · Feb 2, 2011
Provisional Application 61411647 · Nov 9, 2010
Provisional Application 61393364 · Oct 15, 2010
Provisional Application 61373260 · Aug 12, 2010
Provisional Application 61326664 · Apr 22, 2010
Related Publication 20220192588A1 · Jun 23, 2022
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