US 12,290,356 B2
Wearable blood analyte measurement device and method for measuring blood analyte concentration
Benjamin Nashman, Toronto (CA); and Sunrose Billing, Brampton (CA)
Assigned to Synex Medical Inc., Toronto (CA)
Filed by Synex Medical Inc., Toronto (CA)
Filed on Sep. 21, 2023, as Appl. No. 18/371,067.
Application 18/371,067 is a continuation of application No. 16/762,010, granted, now 11,793,429, previously published as PCT/CA2018/051398, filed on Nov. 6, 2018.
Claims priority of provisional application 62/638,364, filed on Mar. 5, 2018.
Claims priority of provisional application 62/584,900, filed on Nov. 12, 2017.
Prior Publication US 2024/0008773 A1, Jan. 11, 2024
Int. Cl. A61B 5/145 (2006.01); A61B 5/00 (2006.01); A61B 5/055 (2006.01); G01R 33/38 (2006.01); G01R 33/383 (2006.01); G01R 33/3873 (2006.01); G01R 33/3875 (2006.01); G01R 33/465 (2006.01)
CPC A61B 5/14546 (2013.01) [A61B 5/002 (2013.01); A61B 5/055 (2013.01); A61B 5/14532 (2013.01); A61B 5/4845 (2013.01); A61B 5/681 (2013.01); A61B 5/742 (2013.01); G01R 33/3808 (2013.01); G01R 33/383 (2013.01); G01R 33/3873 (2013.01); G01R 33/3875 (2013.01); G01R 33/465 (2013.01); A61B 5/6816 (2013.01); A61B 5/6822 (2013.01); A61B 5/6826 (2013.01); A61B 5/6829 (2013.01); A61B 2560/0214 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A system, comprising:
a casing defining an appendage-receiving bore;
a plurality of magnets supported by the casing, the magnets producing a magnetic field in the appendage-receiving bore, wherein the plurality of magnets are arranged along an arcuate portion about the appendage-receiving bore, wherein the plurality of magnets comprises magnets shaped as sectors of an arc, wherein the plurality of magnets comprises magnets configured to be shifted radially inward;
a transmitter supported by the casing, wherein the transmitter is configured to periodically excite an appendage within the appendage-receiving bore throughout a time period of at least 4 hours;
a receiver supported by the casing and positioned to receive a nuclear magnetic resonance (NMR) signal from the appendage; and
a processing system in communication with the transmitter and the receiver, wherein the processing system is configured to determine a blood analyte concentration based on the NMR signal.