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1.发明申请公开(公告)号：US20170231578A1
公开(公告)日：2017-08-17
申请号：US15186228
申请日：2016-06-17
Applicant: QUALCOMM Incorporated
Inventor： Lars Lading , David Boettcher Baek
CPC classification number: A61B5/7282 , A61B5/0004 , A61B5/002 , A61B5/0022 , A61B5/021 , A61B5/026 , A61B5/0261 , A61B5/681 , A61B8/02 , A61B8/04 , A61B8/06 , A61B8/0883 , A61B8/0891 , A61B8/4227 , A61B8/4281 , A61B8/4411 , A61B8/4427 , A61B8/4483 , A61B8/461 , A61B8/488 , A61B8/5223 , A61B8/54 , A61B8/56 , A61B2560/0261 , A61B2560/0475
Abstract: An system for calculating blood pressure may include a sensor system and a control system. The control system may be capable of controlling one or more sensors of the sensor system to take at least two measurements, the at least two measurements including at least one measurement taken at each of two or more different measurement elevations of a subject's limb. In some examples, the control system may be capable of determining a blood flow difference based on the at least two measurements, of determining a hydrostatic pressure difference based on the two or more different elevations of the at least two measurements and of estimating a blood pressure based on one or more values of blood flow, the hydrostatic pressure difference and the blood flow difference.
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公开(公告)号：US20150327785A1
公开(公告)日：2015-11-19
申请号：US14714966
申请日：2015-05-18
Applicant: QUALCOMM Incorporated
Inventor： Lars Lading , David Boettcher Baek
CPC classification number: A61B5/02108 , A61B5/0059 , A61B5/0082 , A61B5/02007 , A61B5/021 , A61B5/02116 , A61B5/053 , A61B5/0535 , A61B5/1075 , A61B5/1126 , A61B5/6898 , A61B5/725 , A61B5/726 , A61B5/7275 , A61B5/7278 , A61B5/7282 , A61B5/7285 , A61B8/04 , A61B2560/0223 , A61B2560/0238 , A61B2560/0242 , A61B2560/0247 , A61B2562/0214 , A61B2562/0219
Abstract: Systems, methods, and devices of the various embodiments enable continuous non-invasive monitoring of blood pressure with a minimum of interference. The various embodiments may provide a method for adaptation for the calibration for continuous measurements of blood pressure, wherein the measured quantity may be related to an arterial lumen or arterial cross sectional area comprising calibrating the conversion for incremental variations of arterial properties and absolute value adaptation by exploitation of the exponential decay during the diastole. In various embodiments, continuous calibration of a non-interfering blood pressure measurement device may be initiated based on a change in mean arterial pressure being greater than a threshold value, such as a pressure value associated with an actual measured distension of a patient's artery.
Abstract translation: 各种实施例的系统，方法和装置使得能够以最小的干扰来连续无创地监测血压。 各种实施例可以提供用于适应用于血压连续测量的校准的方法，其中所测量的量可以与动脉管腔或动脉横截面积相关，包括校准用于动脉特性的增量变化和绝对值适应的转换 在舒张期利用指数衰减。 在各种实施例中，可以基于平均动脉压力的变化大于阈值（例如与患者动脉的实际测量的膨胀度相关联的压力值）来启动非干扰性血压测量装置的连续校准。
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公开(公告)号：US20150238095A1
公开(公告)日：2015-08-27
申请号：US14625110
申请日：2015-02-18
Applicant: QUALCOMM Incorporated
Inventor： Lars Lading , David Boettcher Baek
Abstract: Methods, devices, and systems for determining an estimated pulse wave velocity of an artery of a subject. Embodiment methods may include applying a series of counter pressures, measuring a first parameter related to pulse wave velocity, estimating a second parameter in a model, and determining the estimated pulse wave velocity. The counter pressures may be applied at a set location on the subject over the artery with a pressure device. Each of the counter pressures may be different from one another, applied at the set location, and between zero and a diastolic pressure of the subject. The first parameter may be measured when each of the series of counter pressures is applied. The model may establish a relationship of the first parameter measured to each of the series of counter pressures. The estimated pulse wave velocity may be determined based on the second parameter estimated in the model.
Abstract translation: 用于确定受试者的动脉的估计脉搏波速度的方法，装置和系统。 实施方式可以包括应用一系列反压力，测量与脉搏波速度相关的第一参数，估计模型中的第二参数，以及确定估计的脉搏波速度。 反压力可以用压力装置施加在动脉上的受试者的设定位置上。 每个反压力可以彼此不同，施加在设定位置处，并且在受试者的舒张压和零度压力之间。 当施加一系列反压力时，可以测量第一参数。 该模型可以建立与所述一系列反压力中的每一个测量的第一参数的关系。 估计的脉搏波速度可以基于在模型中估计的第二参数来确定。
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公开(公告)号：US11020057B2
公开(公告)日：2021-06-01
申请号：US15186225
申请日：2016-06-17
Applicant: QUALCOMM Incorporated
Inventor： David Boettcher Baek , Philip John Schneider , Lars Lading , Aiman Abdel-Malek , John Keith Schneider
Abstract: An ultrasound cardiovascular measuring device may include an ultrasonic sensor system having an ultrasound transmitter layer configured to generate ultrasonic plane waves and a focusing layer that includes one or more lenses. One or more of the lenses may be configured to generate output signals corresponding to detected ultrasonic reflections. The measuring device may include a control system capable of processing the output signals to calculate values corresponding to one or more cardiovascular properties.
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公开(公告)号：US10181072B2
公开(公告)日：2019-01-15
申请号：US15077126
申请日：2016-03-22
Applicant: QUALCOMM Incorporated
Inventor： David Boettcher Baek , Aiman Abdel-Malek , Muhammed Sezan , Lars Lading , Eugene Dantsker
IPC: A61B5/00 , G06K9/00 , A61B5/02 , A61B5/0205 , A61B5/022 , A61B5/1172 , A61B5/1455 , A61B5/024 , A61B5/053
Abstract: A biometric measuring device for obtaining biometric measurements on a limb or digit, such as a finger. The biometric measuring device may include a rollable sleeve that is rollable along a longitudinal axis of the limb or digit and multiple biometric sensors attached to the rollable sleeve such that the biometric sensors are positioned on the rollable sleeve to enable the sleeve to be rolled.
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Patent Agency Ranking
公开(公告)号：US10052036B2
公开(公告)日：2018-08-21
申请号：US14714776
申请日：2015-05-18
Applicant: QUALCOMM Incorporated
Inventor： Lars Lading , David Boettcher Baek
Abstract: Systems, methods, and devices of various embodiments enable measurement of blood pressure from an artery. The various embodiments may measure, using a non-interfering arterial measurement sensor, a first change in distension of the artery at a measurement location without interference to an arterial pressure at the measurement location during a series of pulses. A first pulse rate and estimated pulse pressures may be determined from the first change in distension. A coefficient may be determined fitting an exponentially decaying function representing an exponential decay of a portion of a diastolic phase to select ones of the estimated pulse pressures corresponding to the diastolic phase. An absolute blood pressure may be determined by applying the coefficient to a select mathematical model expressing a first relationship between the first change in distension of the artery and the pulse pressure in the artery at the measurement location.
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公开(公告)号：US20170367659A1
公开(公告)日：2017-12-28
申请号：US15191817
申请日：2016-06-24
Applicant: QUALCOMM Incorporated
Inventor： Lars Lading , David Boettcher Baek
CPC classification number: A61B5/7225 , A61B5/021 , A61B5/02108 , A61B5/02416 , A61B5/053 , A61B5/11 , A61B5/1121 , A61B5/6804 , A61B5/681 , A61B5/6824 , A61B5/6826 , A61B5/6828 , A61B5/6829 , A61B5/6898 , A61B5/725 , A61B5/7275 , A61B5/7282 , A61B8/04 , A61B8/58 , A61B2560/0223 , A61B2560/0238 , A61B2560/0475 , A61B2562/02 , A61B2562/0219 , A61B2562/0233 , A61B2562/0247
Abstract: Various embodiments enable calibrating a non-invasive blood pressure measurement device by determining multiple parameters defining a stress-strain relationship of an artery of a patient. The device may obtain output signals from a blood pressure sensor at two or more measurement elevations. The obtained measurement signals may be filtered into AC and quasi-DC components, and results fit to exponential functions to calculate an arterial time constant and a veinous time constant related to vein draining/filling rates. The arterial and veinous time constants may be used to calculate an infinity ratio. The infinity ratio and the obtained sensor output may be used to calculate values for multiple parameters defining a stress-strain relationship of a measured artery. Once defined, this stress-strain relationship may be stored and applied to future sensor output signals (e.g., blood pressure measuring sessions) to infer patient blood pressure.
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公开(公告)号：US11844591B2
公开(公告)日：2023-12-19
申请号：US15268292
申请日：2016-09-16
Applicant: QUALCOMM Incorporated
Inventor： David Boettcher Baek , Lars Lading
IPC: A61B5/021 , G16H50/50 , A61B5/026 , A61B5/0285 , G16H40/40 , G16H50/30 , A61B5/0295 , A61B5/00 , A61B5/02 , A61B8/04
CPC classification number: A61B5/02125 , A61B5/0059 , A61B5/026 , A61B5/02007 , A61B5/0261 , A61B5/0285 , A61B5/0295 , A61B5/7278 , A61B5/742 , A61B8/04 , G16H40/40 , G16H50/30 , G16H50/50 , A61B2560/0223
Abstract: One aspect of the subject matter described in this disclosure can be implemented in a device capable of use in estimating blood pressure. The device includes one or more arterial sensors configured to obtain arterial measurements at two or more elevations. The device additionally includes one or more processors configured to determine one or more calibration parameters for a first blood pressure model based on the arterial measurements and a hydrostatic pressure difference between at least two of the elevations. The processors also are configured to determine a first blood pressure based on the first blood pressure model, the calibration parameters and the arterial measurements. The processors also are configured to determine a second blood pressure based in part on a second blood pressure model, one or more calibration parameters and the arterial measurements. The processors are further configured to provide a final blood pressure based on the first and second blood pressures.
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公开(公告)号：US10182728B2
公开(公告)日：2019-01-22
申请号：US15189089
申请日：2016-06-22
Applicant: QUALCOMM Incorporated
Inventor： Shiqun Gu , David Boettcher Baek , Eugene Dantsker
IPC: A61B5/02 , A61B5/0205 , A61B5/00 , A61B5/01 , A61B5/0402 , A61B5/0476 , A61B5/0488 , A61B8/13 , A61B5/021 , A61B5/024 , A61B5/053 , A61B5/11
Abstract: Methods, devices, systems, and non-transitory processor-readable storage media are disclosed for determining one or more biometric properties of a subject using multiple sensors positioned along a flexible backing. At least one processor of the multi-sensor device may be configured to receive output signals from the multiple sensors, identify at least one output signal from the received output signals that exhibit measurements of a targeted biological structure, determine the one or more biometric properties of the subject based on the identified at least one output signal received from at least one of the multiple sensors, and provide the determined one or more biometric properties.
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公开(公告)号：US10085652B2
公开(公告)日：2018-10-02
申请号：US15074482
申请日：2016-03-18
Applicant: QUALCOMM Incorporated
Inventor： David Boettcher Baek , Russell Gruhlke , Evgeni Poliakov , Khurshid Alam , Lars Lading
Abstract: An optical sensor and a method of using the optical sensor in an optical measuring device that measures cardiovascular properties and compensates for movement artifacts by directing a sheet of light towards an artery. The optical sensor may include one or more light sources, one or more transmit light guides coupled to the one or more light sources and configured to direct light from the one or more light sources as a sheet of light towards an artery, such that the cross-sectional profile of the sheet of light may have a length transverse to a longitudinal direction of the artery that is longer than the diameter of the artery. The optical sensor may include one or more light detectors configured to receive backscattered light and generate an output based on the received backscattered light that is a reflection of the sheet of light from the artery and surrounding tissues.
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