US 11,944,411 B2
Wearable device with mechanical spring to detect pulse transit time
Alexandros Charalambides, Pittsburgh, PA (US); and Brian Stancil, Pittsburgh, PA (US)
Assigned to Lifeware Labs, LLC, Pittsburgh, PA (US)
Filed by Lifeware Labs, LLC, Pittsburgh, PA (US)
Filed on Nov. 27, 2019, as Appl. No. 16/698,574.
Claims priority of provisional application 62/883,721, filed on Aug. 7, 2019.
Claims priority of provisional application 62/773,857, filed on Nov. 30, 2018.
Prior Publication US 2020/0178817 A1, Jun. 11, 2020
Int. Cl. A61B 5/0205 (2006.01); A61B 5/00 (2006.01); A61B 5/021 (2006.01); A61B 5/0245 (2006.01); A61B 5/1455 (2006.01); A61B 5/274 (2021.01); A61B 5/28 (2021.01); A61B 5/352 (2021.01)
CPC A61B 5/02125 (2013.01) [A61B 5/0245 (2013.01); A61B 5/14552 (2013.01); A61B 5/274 (2021.01); A61B 5/28 (2021.01); A61B 5/352 (2021.01); A61B 5/6823 (2013.01); A61B 2560/0412 (2013.01); A61B 2562/06 (2013.01); A61B 2562/146 (2013.01); A61B 2562/166 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A wearable device capable of being affixed to a body of a user, the wearable device comprising:
a base comprising a spring mechanism,
wherein the base is adapted to be affixed to a planar surface of the body of the user;
a pulse oximeter positioned on a bottom surface of the base,
wherein the spring mechanism provides a bias force on the pulse oximeter to create a compressive force on the planar surface of the body of the user through the pulse oximeter,
wherein the pulse oximeter does not penetrate the planar surface;
a plurality of electrodes positioned on the bottom surface of the base,
wherein the plurality of electrodes are separated by a distance providing different contact points for EKG measurements,
wherein the pulse oximeter is positioned between at least two adjacent electrodes of the plurality of electrodes,
wherein the plurality of electrodes are capable of acquiring EKG signals; and
a printed circuit board attached to the base,
wherein the printed circuit board electrically connects the pulse oximeter and the plurality of electrodes.