US 12,007,355 B2
Stretchable and flexible sensing device
Kuan-Chien Chou, Taipei (TW); and Boon-Ping Soh, Singapore (SG)
Filed by Kuan-Chien Chou, Taipei (TW); and Boon-Ping Soh, Singapore (SG)
Filed on Jan. 21, 2020, as Appl. No. 16/747,663.
Claims priority of provisional application 62/799,077, filed on Jan. 31, 2019.
Prior Publication US 2020/0249197 A1, Aug. 6, 2020
Int. Cl. G01N 27/414 (2006.01); A61B 5/00 (2006.01); A61B 5/024 (2006.01); H05K 1/02 (2006.01); H05K 1/18 (2006.01)
CPC G01N 27/4146 (2013.01) [H05K 1/0283 (2013.01); H05K 1/189 (2013.01); A61B 5/02438 (2013.01); A61B 5/6804 (2013.01); H05K 2201/05 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A stretchable and flexible sensing device, comprising:
a first elastic membrane, which has a first surface, a second surface and a plurality of electrode contacts, the first surface and the second surface are disposed opposite to each other, the electrode contacts are located on the first surface, one of the electrode contacts is a ground terminal, and the first elastic membrane is combined with an object by hot pressing that can wear on a human body and touch the human skin;
a first strain sensor, which is arranged on the first surface of the first elastic membrane by printing technology and electrically connected to the electrode contacts respectively, wherein the material of the first strain sensor is selected from the polyvinylidene fluoride (PVDF), fluorinated trifluorinated polyethylene (PVDF-TrFE), carbon nanotubes, graphene ink, or silver nanoparticles ink; and
a processing unit, which is electrically connected to the electrode contacts, and the processing unit is to calculate and process according to a stretch resistance value of the first strain sensor,
wherein the combination of the first elastic membrane and the first strain sensor is stretchable and flexible,
wherein the first elastic membrane comprises a first sub-substrate and a second sub-substrate, which are stacked, and the melting point of the first sub-substrate is higher than the melting point that of the second sub-substrate, and
wherein the second sub-substrate of the first elastic membrane is combined with the objects that can touch the human skin.