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.

公开(公告)号：US20240423479A1

公开(公告)日：2024-12-26

申请号：US18339170

申请日：2023-06-21

Applicant: QUALCOMM Incorporated

Inventor： Emily Kathryn BROOKS ,  John Keith SCHNEIDER ,  Nicholas BUCHAN ,  Evan Michael BRELOFF ,  Ye ZHAN ,  Vivekananda parampalli ADIGA ,  Shounak Uday GORE

IPC: A61B5/00 ,  A61B5/021

Abstract: An apparatus may be configured to control a light source system residing in or on a first support structure portion of the apparatus to transmit light through an ear volume residing between a first ear portion and a second ear portion. The apparatus may be configured to receive, from a receiver system residing in or on a second support structure portion of the apparatus proximate the second ear portion, receiver system signals corresponding to acoustic waves caused by a photoacoustic response to light emitted by the light source system of a) a blood vessel residing within the ear volume, b) blood within the blood vessel, or a combination thereof. The control system may be configured to estimate one or more cardiac features based, at least in part, on the receiver system signals.

公开(公告)号：US20250072834A1

公开(公告)日：2025-03-06

申请号：US18461416

申请日：2023-09-05

Applicant: QUALCOMM Incorporated

Inventor： Emily Kathryn BROOKS ,  John Keith SCHNEIDER ,  Nicholas BUCHAN ,  Evan Michael BRELOFF ,  Ye ZHAN ,  Vivekananda Parampalli ADIGA ,  Shounak Uday GORE

IPC: A61B5/00 ,  A61B5/024

Abstract: Some disclosed examples involve obtaining, via a sensor system of a wearable device, first heart rate waveforms at a first wearable device configuration corresponding with a first position at least a portion of the sensor system. Some examples involve prompting, via a user interface of the wearable device, a user to change the wearable device configuration to a second wearable device configuration, the second wearable device configuration corresponding with a second position of one or more sensors of the sensor system. Some examples involve obtaining second heart rate waveforms at the second wearable device configuration and determining, based at least in part on the first heart rate waveforms and the second heart rate waveforms, whether to change a wearable device configuration or maintain a current wearable device configuration. Some examples involve prompting the user either to change the wearable device configuration or maintain the current wearable device configuration.

公开(公告)号：US20220175258A1

公开(公告)日：2022-06-09

申请号：US17247323

申请日：2020-12-07

Applicant: QUALCOMM Incorporated

Inventor： Jack Conway KITCHENS ,  John Keith SCHNEIDER ,  Evan Michael BRELOFF ,  Emily Kathryn BROOKS ,  Stephen Michael GOJEVIC ,  Fitzgerald JOHN ARCHIBALD ,  Alexei STOIANOV ,  Shounak Uday GORE ,  Nicholas Ian BUCHAN

IPC: A61B5/021 ,  A61B5/00

Abstract: Some disclosed methods involve controlling, via a control system, a light source system to emit a plurality of light pulses into biological tissue at a pulse repetition frequency, the biological tissue including blood and blood vessels at depths within the biological tissue. Such methods may involve receiving, by the control system, signals from the piezoelectric receiver corresponding to acoustic waves emitted from portions of the biological tissue, the acoustic waves corresponding to photoacoustic emissions from the blood and the blood vessels caused by the plurality of light pulses. Such methods may involve detecting, by the control system, heart rate waveforms in the signals, determining, by the control system, a first subset of detected heart rate waveforms corresponding to vein heart rate waveforms and determining, by the control system, a second subset of detected heart rate waveforms corresponding to artery heart rate waveforms.

公开(公告)号：US20250120598A1

公开(公告)日：2025-04-17

申请号：US18486866

申请日：2023-10-13

Applicant: QUALCOMM Incorporated

Inventor： Emily Kathryn BROOKS ,  John Keith SCHNEIDER ,  Vivekananda Parampalli ADIGA ,  Shounak Uday GORE ,  Nicholas BUCHAN ,  Hrishikesh Vijaykumar PANCHAWAGH ,  Evan Michael BRELOFF ,  Ye ZHAN

IPC: A61B5/021 ,  A61B5/00

Abstract: In some implementations, an apparatus may obtain activity information indicative of an activity performed by a person. The apparatus may update a model for determining blood pressure of the person based at least in part on the obtained activity information. The apparatus may detect an acoustic wave corresponding to a photoacoustic response of a blood vessel of the person to light emitted by a light source system. The apparatus may estimate a blood pressure based at least in part on the updated model and the acoustic wave. In some embodiments, the apparatus may comprise a wearable device worn by the person.

公开(公告)号：US20250082207A1

公开(公告)日：2025-03-13

申请号：US18463352

申请日：2023-09-08

Applicant: QUALCOMM Incorporated

Inventor： Shounak Uday GORE ,  Emily Kathryn BROOKS ,  John Keith SCHNEIDER ,  Ye ZHAN ,  Evan Michael BRELOFF ,  Vivekananda Parampalli ADIGA

IPC: A61B5/00 ,  A61B5/021

Abstract: An apparatus and associated method may include a light source system that includes a light-emitting component, and a receiver system configured to detect an acoustic wave that corresponds to a photoacoustic response of a blood vessel to light emitted by the light source system. A control system may be configured to determine a wave characteristic from the acoustic wave and to estimate a tensive state classification based on the determined wave characteristic. The tensive state classification may be one of a plurality of tensive state classifications that each include different ranges of diastolic and systolic values.

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

IPC: A61B5/021 ,  A61B5/00 ,  A61B5/02

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.