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公开(公告)号：US20250072762A1
公开(公告)日：2025-03-06
申请号：US18461397
申请日：2023-09-05
Applicant: QUALCOMM Incorporated
Inventor： Sumit AGRAWAL , Ye ZHAN , Emily Kathryn BROOKS , Hrishikesh Vijaykumar PANCHAWAGH , Ali LOPEZ , Nicholas BUCHAN , Kostadin Dimitrov DJORDJEV , John Keith SCHNEIDER
Abstract: An apparatus may include a platen, a light source system, an ultrasonic receiver system and a control system, the light source system configured for providing first light of a first wavelength and second light of a second wavelength to a target object along a first axis. The control system may be configured to: cause the light source system to provide the first light to the target object at a first time and to provide the second light to the target object at a second time; receive first ultrasonic receiver signals and second ultrasonic receiver signals from the ultrasonic receiver system corresponding to photoacoustic responses of the target object to the first light and the second light, respectively; and estimate one or more blood vessel features based on at least one of the first ultrasonic receiver signals or the second ultrasonic receiver signals.
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公开(公告)号：US20250072760A1
公开(公告)日：2025-03-06
申请号：US18461387
申请日：2023-09-05
Applicant: QUALCOMM Incorporated
Inventor： Sumit AGRAWAL , Ye ZHAN , Emily Kathryn BROOKS , Hrishikesh Vijaykumar PANCHAWAGH , Ali LOPEZ , Nicholas BUCHAN , Kostadin Dimitrov DJORDJEV , John Keith SCHNEIDER
Abstract: An apparatus may include a platen, a light source system, an ultrasonic receiver system and a control system, the light source system being configured for providing first light and second light having first and second wavelengths to a target object on an outer surface of the platen and including one or more light guides configured to convey light parallel to a surface of the platen. The control system may be configured to: cause the light source system to provide the first light and the second light to the target object at a first time and a second time, respectively; receive first and second ultrasonic receiver signals from the ultrasonic receiver system corresponding to photoacoustic responses of the target object to the first light and the second light, respectively; and estimate one or more blood vessel features based on at least one of the first or the second ultrasonic receiver signals.
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公开(公告)号：US20240423487A1
公开(公告)日：2024-12-26
申请号：US18339162
申请日：2023-06-21
Applicant: QUALCOMM Incorporated
Inventor： Emily Kathryn BROOKS , John Keith SCHNEIDER , Hrishikesh Vijaykumar PANCHAWAGH , Nicholas BUCHAN , Evan Michael BRELOFF , Ye ZHAN , Vivekananda Parampalli ADIGA , Shounak Uday GORE , Bernard HERRERA SOUKUP
Abstract: Some disclosed devices include a light source system, an ultrasonic receiver system and a control system. The control system may be configured to receive first sensor signals, including ultrasonic receiver signals, from the ultrasonic receiver system and to estimate one or more blood vessel features based on the first sensor signals. The control system may be configured to receive second sensor signals from a second sensor and to estimate a PWV based on the first sensor signals and the second sensor signals. The control system may be configured to estimate blood pressure based, at least in part, on the one or more blood vessel features and the PWV.
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Patent Agency Ranking
公开(公告)号：US20250114003A1
公开(公告)日：2025-04-10
申请号：US18480831
申请日：2023-10-04
Applicant: QUALCOMM Incorporated
Inventor： Emily Kathryn BROOKS , Hrishikesh Vijaykumar PANCHAWAGH , John Keith SCHNEIDER , Nicholas BUCHAN , Vivekananda Parampalli ADIGA , Bernard HERRERA SOUKUP , Ye ZHAN , Evan Michael BRELOFF , Shounak Uday GORE , Sumit AGRAWAL
IPC: A61B5/00 , A61B5/02 , A61B5/0205 , A61B5/021
Abstract: Sensors and systems for determining a physiological parameter such as blood pressure using external pressure are disclosed. Such sensors and/or systems may be embodied in a wearable user device. The wearable user device may include a cuff configured to apply a pressure to a portion of a user at one or more substantially constant pressure levels; a photoacoustic sensor configured to obtain photoacoustic signals generated from light incident on a blood vessel; and a wearable structure including the cuff and the photoacoustic sensor. Techniques involving the wearable user device may include: obtaining photoacoustic signals from a portion of the user; determining a curve associated with the user, the curve including a plurality of spatial measurements of the blood vessel as a function of a plurality of discrete pressures, the curve enabling determination of a characteristic of the blood vessel; and determining the physiological parameter based at least on the characteristic.
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公开(公告)号：US20250090029A1
公开(公告)日：2025-03-20
申请号：US18468934
申请日：2023-09-18
Applicant: QUALCOMM Incorporated
Inventor： Nicholas BUCHAN , Stephen Michael GOJEVIC , Ye ZHAN , Vivekananda Parampalli ADIGA , John Keith SCHNEIDER
IPC: A61B5/00 , A61B5/021 , A61B5/024 , A61B5/0295
Abstract: Some disclosed examples involve directing two or more pulse groups of light towards a target object during a total light transmission time interval, each pulse group time interval within the total light transmission time interval being separated from a successive pulse group time interval by an off time interval. The target object may be part of a human body or an animal body. In some examples, no light is transmitted towards the target object during the off time interval. Some disclosed examples involve receiving acoustic signals corresponding to photoacoustic (PA) responses of a target object to the two or more pulse groups and determining one or more heart rate waveforms of the human or animal body based on the acoustic signals.
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公开(公告)号：US20250072763A1
公开(公告)日：2025-03-06
申请号：US18461402
申请日：2023-09-05
Applicant: QUALCOMM Incorporated
Inventor： Sumit AGRAWAL , Ye ZHAN , Emily Kathryn BROOKS , Hrishikesh Vijaykumar PANCHAWAGH , Ali LOPEZ , Nicholas BUCHAN , Kostadin Dimitrov DJORDJEV , John Keith SCHNEIDER
IPC: A61B5/00
Abstract: Some disclosed methods may involve providing first light of a first wavelength to a target object at a first time, receiving first ultrasonic receiver signals from an ultrasonic receiver system corresponding to photoacoustic responses of the target object to the first light, providing second light of a second wavelength to the target object at a second time, receiving second ultrasonic receiver signals from the ultrasonic receiver system corresponding to photoacoustic responses of the target object to the second light and differentiating a desired signal from one or more background signals based, at least in part, on the first ultrasonic receiver signals and the second ultrasonic receiver signals. The desired signal may correspond to at least a portion of a blood vessel within the target object. A light source system may be configured for providing the first light and the second light to the target object along the same axis.
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公开(公告)号：US20240210308A1
公开(公告)日：2024-06-27
申请号：US18069888
申请日：2022-12-21
Applicant: QUALCOMM Incorporated
Inventor： Nicholas BUCHAN , Stephen Michael GOJEVIC , Hrishikesh Vijaykumar PANCHAWAGH , Yipeng LU , Htet NAING , John Keith SCHNEIDER , Kostadin Dimitrov DJORDJEV , Camilo PEREZ SAAIBI , Sherman Sebastian ANTAO , Ye ZHAN
CPC classification number: G01N21/1702 , A61B5/0095 , A61B8/4281 , G01N29/2418
Abstract: An apparatus may include a platen, a light source system and an ultrasonic receiver system. The platen may be configured to separate one or more received arterial ultrasonic waves generated by blood in an artery, by an arterial wall, or by a combination thereof, from one or more other types of received ultrasonic waves. The platen may have an outer surface with an acoustic impedance that is configured to approximate the acoustic impedance of human skin. The outer surface of the platen may be configured to conform to a surface of the human skin. The apparatus may include a noise reduction system. The light source system may include at least one multi-junction laser diode. The apparatus may include a mirror layer residing between the ultrasonic receiver system and the platen.
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公开(公告)号：US20240206739A1
公开(公告)日：2024-06-27
申请号：US18069885
申请日：2022-12-21
Applicant: QUALCOMM Incorporated
Inventor： Nicholas BUCHAN , Stephen Michael GOJEVIC , Hrishikesh Vijaykumar PANCHAWAGH , Yipeng LU , Htet NAING , John Keith SCHNEIDER , Kostadin Dimitrov DJORDJEV , Camilo PEREZ SAAIBI , Sherman Sebastian ANTAO , Ye ZHAN
CPC classification number: A61B5/0095 , G01N21/1702 , G01N29/2418 , G01N2021/1706 , G01N2021/1708
Abstract: An apparatus may include a platen, a light source system and an ultrasonic receiver system. The platen may be configured to separate one or more received arterial ultrasonic waves generated by blood in an artery, by an arterial wall, or by a combination thereof, from one or more other types of received ultrasonic waves. The platen may have an outer surface with an acoustic impedance that is configured to approximate the acoustic impedance of human skin. The outer surface of the platen may be configured to conform to a surface of the human skin. The apparatus may include a noise reduction system. The light source system may include at least one multi-junction laser diode. The apparatus may include a mirror layer residing between the ultrasonic receiver system and the platen.
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