US 11,911,174 B2
Systems and methods for prevention of pressure ulcers
Raymond Dunn, Shrewsbury, MA (US); John McNeill, Worcester, MA (US); and Yitzhak Mendelson, Worcester, MA (US)
Assigned to University of Massachusetts, Boston, MA (US); and Worcester Polytechnic Institute, Worcester, MA (US)
Filed by University of Massachusetts, Boston, MA (US); and Worcester Polytechnic Institute, Worcester, MA (US)
Filed on Dec. 6, 2018, as Appl. No. 16/212,576.
Application 16/212,576 is a continuation in part of application No. PCT/US2017/036208, filed on Jun. 6, 2017.
Claims priority of provisional application 62/346,151, filed on Jun. 6, 2016.
Prior Publication US 2019/0104982 A1, Apr. 11, 2019
Int. Cl. A61B 5/11 (2006.01); A61B 5/00 (2006.01); G16H 50/70 (2018.01); G16H 40/67 (2018.01); G16H 50/20 (2018.01); A61B 5/0531 (2021.01)
CPC A61B 5/447 (2013.01) [A61B 5/0015 (2013.01); A61B 5/0064 (2013.01); A61B 5/0531 (2013.01); A61B 5/6833 (2013.01); A61B 5/7203 (2013.01); A61B 5/7264 (2013.01); A61B 5/7275 (2013.01); G16H 40/67 (2018.01); G16H 50/20 (2018.01); G16H 50/70 (2018.01); A61B 5/6829 (2013.01); A61B 5/746 (2013.01); A61B 2560/0214 (2013.01); A61B 2560/0247 (2013.01); A61B 2560/0252 (2013.01); A61B 2562/0247 (2013.01); A61B 2562/046 (2013.01); A61B 2562/08 (2013.01); A61B 2562/164 (2013.01)] 40 Claims
OG exemplary drawing
 
1. A pressure ulcer monitoring system comprising:
an adhesive patch including a pressure sensor device having a plurality of pressure sensor elements that are each configured to measure a pressure at a selected tissue surface location from among one or more selectable tissue surface locations on a patient wherein at least one selectable tissue surface location comprises a heel and at least one further selectable tissue surface location comprises a shoulder, the pressure sensor device being attachable to at least one selected tissue surface location with the adhesive patch;
a control circuit, a battery and a wireless transmitter mounted on the adhesive patch for attachment to the at least one selected tissue surface location, the control circuit comprising a timer that outputs a measurement time interval (Tmeas) and wherein the wireless transmitter transmits time data and pressure data above a threshold for each pressure sensor element during each measurement time interval, the time data being transmitted in a data field including a time stamp for the transmitted pressure data of each pressure sensor element and the at least one selected tissue surface location;
a memory that stores patient specific data for one or more patient variables including a location value defined by the at least one selected tissue surface location of the pressure sensor device and medical history data of the patient including body mass data; and
a data processor that receives pressure data from the pressure sensor device, the data processor being configured to compute an accumulated pressure value during one or more time periods at the at least one selected tissue surface location of the pressure sensor device on the patient and, based on the computed accumulated pressure value, the patient specific data including the stored body mass data for the medical condition of the patient, and the stored location value for the patient that, in combination, define a patient-specific pressure ulcer diagnostic function such that the data processor computes a value of the pressure ulcer diagnostic function for the patient using at least the accumulated pressure value, the stored body mass data, and the stored location value.