	US 12,307,619 B2
	System and method for determining personal protective equipment comfort
Ambuj Sharma, Woodbury, MN (US); Claire R. Donoghue, Twyford (GB); Stephen R. Gamble, Bishop Aukland (GB); Andrew W. Long, Woodbury, MN (US); Christine L. McCool, St. Paul, MN (US); Caitlin E. Meree, St. Paul, MN (US); Henning T. Urban, Kuehlungsborn (DE); Andrew S. Viner, St. Paul, MN (US); Richard C. Webb, St. Paul, MN (US); and Caroline M. Ylitalo, Stillwater, MN (US)
Assigned to 3M Innovative Properties Company, St. Paul, MN (US)
Appl. No. 18/007,213
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
PCT Filed Jul. 28, 2021, PCT No. PCT/IB2021/056865 § 371(c)(1), (2) Date Jan. 27, 2023, PCT Pub. No. WO2022/034418, PCT Pub. Date Feb. 17, 2022.
Claims priority of provisional application 63/065,781, filed on Aug. 14, 2020.
Prior Publication US 2023/0290091 A1, Sep. 14, 2023
Int. Cl. G06T 19/20 (2011.01)

CPC G06T 19/20 (2013.01) [G06T 2219/2021 (2013.01)]

20 Claims

1. A method for determining personal protective equipment (PPE) comfort for an individual wearer, the method comprising:

defining a first anatomical shape data representative of an anatomical area of the individual wearer prior to donning a PPE;

defining a second anatomical shape data representative of the anatomical area of the individual wearer after donning the PPE;

comparing the first anatomical shape data with the second anatomical shape data;

determining a soft skin tissue deformation at a plurality of predetermined anatomical positions based on the comparison between the first anatomical shape data and the second anatomical shape data;

determining a displacement comfort threshold (CT_d) value based on the soft skin tissue deformation at the plurality of predetermined anatomical positions;

determining a pressure pain threshold (PPT) value at the plurality of predetermined anatomical positions;

determining a comfort metric based on the PPT values and the CT_dvalues; and

generating a notification corresponding to the comfort metric.