US 11,653,846 B2
Device and method suitable for monitoring arterial blood in a body part
Ming Yip Wallace Wong, Hong Kong (CN); and Chor Tin Ma, Shatin (HK)
Assigned to WELL BEING DIGITAL LIMITED, Hong Kong (HK)
Filed by Well Being Digital Limited, Pak Shek Kok (HK)
Filed on Jun. 30, 2020, as Appl. No. 16/916,498.
Application 16/916,498 is a continuation of application No. 15/405,193, filed on Jan. 12, 2017, granted, now 10,806,355.
Application 15/405,193 is a continuation in part of application No. 14/432,471, granted, now 10,314,499, issued on Jun. 11, 2019, previously published as PCT/CN2014/082722, filed on Jul. 22, 2014.
Claims priority of application No. 14107332.6 (HK), filed on Jul. 18, 2014.
Prior Publication US 2020/0329985 A1, Oct. 22, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/024 (2006.01); A61B 5/1455 (2006.01); A61B 5/00 (2006.01)
CPC A61B 5/02416 (2013.01) [A61B 5/02433 (2013.01); A61B 5/02438 (2013.01); A61B 5/14551 (2013.01); A61B 5/14552 (2013.01); A61B 5/6817 (2013.01); A61B 5/6824 (2013.01); A61B 5/6826 (2013.01); A61B 5/6833 (2013.01); A61B 5/6847 (2013.01); A61B 5/7214 (2013.01); A61B 5/7221 (2013.01); A61B 2505/09 (2013.01); A61B 2560/0276 (2013.01); A61B 2562/0238 (2013.01); A61B 2562/043 (2013.01); A61B 2562/164 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A wearable device suitable for monitoring blood in a body part, comprising
a substrate suitable for being placed on the body part, the substrate attached with
at least two light emitters, and
at least two light sensors;
the substrate comprising a microprocessor for the operation of the emitters and light sensors
the at least two light emitters arranged such that light from each of the at least two light emitters is capable of diffusing through the body part to arrive at each of the at least two light sensors;
the substrate being capable of substantially holding the at least two light emitters and at least two light sensors; such that
the at least two light emitters and at least two light sensors generally form a plane for being applied to a surface on one side of the body part;
the at least two light emitters capable of operating sequentially to emit light to be detected by the sensors; and
the at least two light sensors having positions such that each of the at least two light sensors detects light from every one of the at least two light emitters in a different direction; wherein
the substrate is flexible.