# US 2019/0378613 A1 · Systems And Methods For Managing A Person's Position Based On A Personal Health Factor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0378613 A1 - Document ID: US20190378613A1 - Status: Published application - Kind: A1 - Application number: 16/548,326 - Filed: 2019-08-22 - Published: 2019-12-12 - Earliest claimed: 2009-03-24 - Assignees: Leaf Healthcare, Inc. - Applicants: Leaf Healthcare, Inc. - Inventors: David Perlman; Joseph Himle - Web page: https://patentgrep.com/patent/US20190378613A1 ## CPC - G16H 40/63: for local operation - A61B 5/1116: {Determining posture transitions} - A61B 5/447: {specially adapted for aiding the prevention of ulcer or pressure sore development, i.e. before the ulcer or sore has developed} - A61B 5/6801: {specially adapted to be attached to or worn on the body surface} - A61B 5/7275: {Determining trends in physiological measurement data; Predicting development of a medical condition based on physiological measurements, e.g. determining a risk factor} - A61B 5/742: {using visual displays (displays for heart-related electrical signals, e.g. ECG, A61B5/339)} - A61B 5/746: {Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms} - G16Z 99/00: Subject matter not provided for in other main groups of this subclass - A61B 2562/0219: Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches - G16H: HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - G16Z: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS, NOT OTHERWISE PROVIDED FOR ## Abstract A monitoring system and method tracks a patient's position over time and ensures that proper turning or other manipulation is done within the time prescribed. Preferably, the techniques herein continuously monitor patient position and alert medical or other personnel of the need for turning or other patient manipulation. The system may be implemented within a medical or other care facility, or within a patient's home. ## Claims ### Claim at position 1 1-9. (canceled) ### Claim 10 A system for automated management of a person's position, comprising: at least one sensor configured to generate sensor data associated with a position of the person during a series of (a) pressure-on periods in which the person is in a pressure-on position, and (b) relief periods in which the person is in a relief position; and a processor coupled to the at least one sensor and configured to: determine a personal health factor for the person, wherein the personal health factor is based on health-related information specific to the person; receive sensor data from the at least one sensor via wired or wireless communications; detect changes in the person's position over time based on the received sensor data; and for a particular relief period, set a time-off threshold value for the particular relief period by: determining a pressure-on value for the particular relief period based on a measured duration of at least one pressure-on period preceding the particular relief period; and determining a time-off threshold value for the particular relief period as a function of (a) the pressure-on value determined for the particular relief period and (b) the personal health factor for the person; measure a duration of the particular relief period based on the received sensor data; determine, based on (a) the duration of the particular relief period and (b) the time-off threshold value for the particular relief period, a notification condition; and generate a notification in response to determining the notification condition. ### Claim 11 (depends on 6) The system of claim 6, wherein the processor configured to generate a notification in response to determining the notification condition comprises the processor configured to generate a visual or audible notification in response to determining the notification condition. ### Claim 12 (depends on 10) The system of claim 10, further comprising an audible or visual output device configured to output the notification. ### Claim 13 (depends on 10) The system of claim 10, wherein the personal health factor for the person represents at least one of an age of the person, circulatory health of the person, medication data of the person, or disease data of the person. ### Claim 14 (depends on 10) The system of claim 10, wherein the processor configured to determine a personal health factor for the person comprises the processor configured to automatically calculate or select a personal health factor for the person based on one or more health parameters associated with the person. ### Claim 15 (depends on 10) The system of claim 10, further comprising an input device communicatively coupled to the processor and configured to receive user input indicating health related information regarding the person; and wherein the processor is configured to determine a personal health factor for the person based on the received user input indicating health related information regarding the person. ### Claim 16 (depends on 15) The system of claim 15, wherein the received user input indicating health related information regarding the person comprises the personal health factor in the form of a value. ### Claim 17 (depends on 7) The system of claim 7, wherein the received user input indicating health related information regarding the person comprises a set of manually input data; and wherein the processor is configured to calculate the personal health factor for the person based on the set of manually input data. ### Claim 18 (depends on 10) The system of claim 10, further comprising an input device communicatively coupled to the processor and configured to receive user input for adjusting the personal health factor for the person. ### Claim 19 (depends on 10) The system of claim 10, wherein the processor is configured to determine the time-off threshold value for the particular relief period as a function of (a) a defined proportional relationship between the time-off threshold value and the pressure-on value determined for the particular relief period and (b) the personal health factor for the person. ### Claim 20 (depends on 10) The system of claim 10, wherein the at least one sensor is provided in a wearable sensor device configured to be affixed to or carried by the person. ### Claim 21 A method for automated management of a person's position using a wearable sensor device affixed to or carried by the person, the method comprising: generating, by at least one sensor provided in the wearable sensor device, sensor data representative of a position of the person during a series of (a) pressure-on periods in which the person is in a pressure-on position, and (b) relief periods in which the person is in a relief position; and determining, by a processor, a personal health factor for the person, wherein the personal health factor is based on health-related information specific to the person; receiving sensor data at the processor via a wired or wireless communication connection with the at least one sensor; identifying, by the processor, changes in the person's position over time based on the received sensor data; and for a particular relief period, setting, by the processor, a time-off threshold value for the particular relief period by: determining a pressure-on value for the particular relief period based on a measured duration of at least one pressure-on period preceding the particular relief period; and determining a time-off threshold value for the particular relief period as a function of (a) the pressure-on value determined for the particular relief period and (b) the personal health factor for the person; measuring, by the processor, a duration of the particular relief period based on the received sensor data; determining, by the processor, a notification condition based on (a) the duration of the particular relief period and (b) the time-off threshold value for the particular relief period; and generating, by the processor, a notification in response to determining the notification condition. ### Claim 22 (depends on 21) The method of claim 21, further comprising outputting, by an audible or visual output device, the notification generated by the processor. ### Claim 23 (depends on 9) The method of claim 9, wherein the personal health factor for the person represents at least one of an age of the person, circulatory health of the person, medication data of the person, or disease data of the person. ### Claim 24 (depends on 21) The method of claim 21, wherein determining the personal health factor for the person comprises automatically calculating or selecting, by the processor, a personal health factor for the person based on one or more health parameters associated with the person. ### Claim 25 (depends on 21) The method of claim 21, comprising: receiving, via an input device communicatively coupled to the processor, user input indicating health related information regarding the person; and determining, by the processor, the personal health factor for the person based on the received user input indicating health related information regarding the person. ### Claim 26 (depends on 25) The method of claim 25, wherein the received user input indicating health related information regarding the person comprises the personal health factor in the form of a value. ### Claim 27 (depends on 25) The method of claim 25, wherein the received user input indicating health related information regarding the person comprises a set of manually input data; and wherein determining, by the processor, the personal health factor for the person comprises calculating, by the processor, the personal health factor for the person based on the set of manually input data. ### Claim 28 (depends on 21) The method of claim 21, comprising, receiving, via an input device communicatively coupled to the processor, user input for adjusting the personal health factor for the person. ### Claim 29 (depends on 21) The method of claim 21, comprising determining, by the processor, the time-off threshold value for the particular relief period as a function of (a) a defined proportional relationship between the time-off threshold value and the pressure-on value determined for the particular relief period and (b) the personal health factor for the person.