US 11,723,588 B2
Device for apnea detection, system and method for expediting detection of apnea events of a user
Sai Kit Siew, Singapore (SG); and Siew Hua Chua, Singapore (SG)
Assigned to Advanced Analyzer Technologies Pte Ltd, Singapore (SG)
Filed by Advanced Analyzer Technologies Pte Ltd, Singapore (SG)
Filed on Jun. 17, 2020, as Appl. No. 16/904,555.
Claims priority of application No. 10201910779Y (SG), filed on Nov. 18, 2019.
Prior Publication US 2021/0145357 A1, May 20, 2021
Int. Cl. A61B 5/00 (2006.01); A61B 5/0205 (2006.01); A61B 5/113 (2006.01); A61B 5/1455 (2006.01)
CPC A61B 5/4818 (2013.01) [A61B 5/0022 (2013.01); A61B 5/0205 (2013.01); A61B 5/113 (2013.01); A61B 5/1455 (2013.01); A61B 5/6814 (2013.01); A61B 5/6826 (2013.01); A61B 5/7285 (2013.01); A61B 2562/06 (2013.01); A61B 2562/182 (2013.01); A61B 2562/223 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A device for detecting sleep apnea events of a user, comprising:
a first sensor for capturing snoring sound of the user;
a second sensor for capturing cardiovascular parameters of the user;
a third sensor for capturing breathing movements of the user;
a data recorder that is connected with the first sensor, the second sensor and the third sensor for recording measurements therefrom; and
a clock for synchronizing the measurements,
wherein a dual spike comprises a heart rate spike that occurs simultaneously with a SPO2 spike;
wherein the measurements include one or more breathing events that comprise snoring events, one or more of the dual spikes, and breathing movement cessations; and
a signal processing unit that excludes time periods that apnea events are impossible according to a combination of the breathing events, so that detection of the apnea events is expedited,
wherein the excluded time periods that the apnea events are impossible include:
a time period of each of the snoring events;
a time period between two of the snoring events that is less than a pre-determined length of time;
a time period between one of the dual spikes and one of the snoring events that is less than the pre-determined length of time;
a time period between two of the dual spikes that is less than the pre-determined length of time; and
a time period of the breathing movement cessations that is less than the pre-determined length of time;
wherein the third sensor further comprises:
an optic fiber;
an upper frame that is stiff; and
a lower frame that is stiff and includes protrusions for holding the optic fiber therebetween,
wherein the optic fiber is sandwiched between the upper frame and the lower frame, so that the optic fiber generates light loss corresponding to the breathing movements of the user when the user is lying on the upper frame.