公开(公告)号：US20210169441A1

公开(公告)日：2021-06-10

申请号：US16927911

申请日：2020-07-13

Applicant: California Institute of Technology

Inventor： Aditya RAJAGOPAL ,  Alaina Ann Brinley RAJAGOPAL

IPC: A61B7/04 ,  A61B5/0205 ,  A61B8/00 ,  A61B5/00 ,  G01S15/89

Abstract: An enhanced stethoscope device and method for operating the enhanced stethoscope are provided. The enhanced stethoscope device generally operates by providing stethoscope sensors, ultrasonic sensors, and other sensors to obtain a series of measurements about a subject. The series of measurements may be correlated, such as by machine learning, to extract clinically relevant information. Also described are systems and methods for ultrasonic beamsteering by interference of an audio signal with an ultrasonic signal.

公开(公告)号：US20240307026A1

公开(公告)日：2024-09-19

申请号：US18675500

申请日：2024-05-28

Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： Alaina Ann Brinley RAJAGOPAL ,  Aditya Rajagopal

IPC: A61B8/08 ,  A61B8/00 ,  A61B8/14 ,  G01S15/89

CPC classification number: A61B8/0891 ,  A61B8/14 ,  A61B8/40 ,  A61B8/4236 ,  A61B8/4472 ,  G01S15/895

Abstract: A measurement device includes: a processing device and multiple sensors that capture tomographic information of a physiological structure. The sensors include a first sensor including a first transducer having a first frequency response with a first resonant frequency, and a second sensor including a second transducer having a second frequency response with a second resonant frequency different from the first resonant frequency. The first frequency response partially overlaps with the second frequency response. The second transducer transmits a signal that is reflected by the physiological structure to create a reflected signal, the first transducer generates a first received signal from the reflected signal, the second transducer generates a second received signal from the reflected signal, and the processing device normalizes the first received signal with the second received signal or the second received signal with the first received signal.

公开(公告)号：US20180317877A1

公开(公告)日：2018-11-08

申请号：US16038070

申请日：2018-07-17

Applicant: California Institute of Technology

Inventor： Aditya RAJAGOPAL ,  Alaina Ann Brinley RAJAGOPAL

IPC: A61B7/04 ,  A61B5/0205 ,  A61B5/00 ,  A61B8/00 ,  A61B5/021 ,  A61B5/08 ,  A61B5/145

Abstract: An enhanced stethoscope device and method for operating the enhanced stethoscope are provided. The enhanced stethoscope device generally operates by providing stethoscope sensors, ultrasonic sensors, and other sensors to obtain a series of measurements about a subject. The series of measurements may be correlated, such as by machine learning, to extract clinically relevant information. Also described are systems and methods for ultrasonic beamsteering by interference of an audio signal with an ultrasonic signal.

公开(公告)号：US20180049716A1

公开(公告)日：2018-02-22

申请号：US15678789

申请日：2017-08-16

Applicant: California Institute of Technology

Inventor： Aditya RAJAGOPAL ,  Alaina Ann Brinley RAJAGOPAL

IPC: A61B7/04 ,  A61B5/0205 ,  A61B8/00 ,  A61B5/00

CPC classification number: A61B7/04 ,  A61B5/0022 ,  A61B5/02055 ,  A61B5/021 ,  A61B5/0816 ,  A61B5/14532 ,  A61B5/14542 ,  A61B5/7253 ,  A61B5/7257 ,  A61B5/726 ,  A61B5/7264 ,  A61B5/742 ,  A61B8/4477 ,  A61B2560/0214

Abstract: An enhanced stethoscope device and method for operating the enhanced stethoscope are provided. The enhanced stethoscope device generally operates by providing stethoscope sensors, ultrasonic sensors, and other sensors to obtain a series of measurements about a subject. The series of measurements may be correlated, such as by machine learning, to extract clinically relevant information. Also described are systems and methods for ultrasonic beamsteering by interference of an audio signal with an ultrasonic signal.