US 11,998,302 B2
Thermographic device for measurement of differential temperatures in tissue
Samir Mousa, Boonton, NJ (US)
Assigned to Welwaze Medical Inc., Miami, FL (US)
Filed by WELWAZE MEDICAL INC., Miami, FL (US)
Filed on Sep. 19, 2022, as Appl. No. 17/947,512.
Application 17/947,512 is a continuation of application No. 16/214,928, filed on Dec. 10, 2018, granted, now 11,445,917.
Claims priority of provisional application 62/596,223, filed on Dec. 8, 2017.
Prior Publication US 2023/0200662 A1, Jun. 29, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/01 (2006.01); A61B 5/00 (2006.01); A61B 10/00 (2006.01)
CPC A61B 5/015 (2013.01) [A61B 5/01 (2013.01); A61B 5/4312 (2013.01); A61B 10/0041 (2013.01); A61B 2562/0276 (2013.01); A61B 2562/046 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device for measuring temperatures at one or more regions on a human, the device comprising:
a platform having a first surface and a second surface, wherein the platform is shaped to define a plurality of lobe areas wherein each of the plurality of the lobe areas is conformable to a shape of a human breast;
a temperature sensing module disposed on each lobe area of the first surface of the platform, the module comprising:
a heat conducting substrate comprising metallic foil, the substrate having a top surface and a plurality of linear arrays, each array comprising a plurality of spaced apart recesses, defined in the top surface;
a thermographic composition disposed in each recess; and
wherein the thermographic composition comprises:
a binary solvent system comprising relative amounts of ortho-chloronitrobenzene (OCNB) and ortho-bromonitrobenzene (OBNB);
a first dye comprising crystal violet lactone which is present in an amount of 0.1% to 0.3% by weight, based on the total weight of the thermographic composition;
a second dye comprising (1-methylamino)anthraquinone which is present in an amount of 0.04% to 0.05% by weight, based on the total weight of the thermographic composition, or 1-[[4-(phenylazo)phenyl]azo]-2-naphthalenol which is present in an amount of 0.03% to 0.05% by weight, based on the total weight of the thermographic composition; and
an activator comprising bisphenol A and 2,2′, 4′4′-tetrahydroxybenzophenone, each of which is present in an amount of 0.1% to 0.3% by weight, based on the total weight of the thermographic composition, and
wherein the activator also comprises arachidic acid in an amount of 0.01% to 0.03% by weight, based on the total weight of the thermographic composition; and
wherein the relative amounts of OCNB and OBNB determine a melting point of the thermographic composition, and wherein the linear array of spaced apart recesses are radially arranged with respect to a center of the platform, wherein the thermographic compositions in the recesses in any one linear array are identical and have the same melting point, and wherein not all linear arrays have the same melting point
wherein the thermographic composition, when in a solid state, exhibits a first color and, when in a liquid state, exhibits a second color, distinct from the first color, each of the first and second colors being visible to the naked eye.