公开(公告)号：US20210169515A1

公开(公告)日：2021-06-10

申请号：US16857956

申请日：2020-04-24

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Ki Joo PAHK ,  Hyung Min KIM ,  Byung Chul LEE ,  Inchan YOUN

IPC: A61B17/32

Abstract: An apparatus for tissue ablation according to an embodiment of the present disclosure includes an ultrasound output unit to output focused ultrasound, and a control unit to control an intensity of the focused ultrasound, wherein the control unit may be configured to control the intensity of the focused ultrasound below a setting value, when a first condition in which a vapor bubble is formed in a tissue or a second condition in which a temperature of the tissue reaches a threshold is accomplished during the output of the focused ultrasound to the tissue. According to this embodiment, it is possible to precisely control vapor bubble dynamics without generating the shockwave scattering effect by instantaneously controlling the acoustic pressure and the intensity of the focused ultrasound, and prevent damage to a tissue other than a lesion to be removed.

公开(公告)号：US20200054262A1

公开(公告)日：2020-02-20

申请号：US16456139

申请日：2019-06-28

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Inchan YOUN ,  Kuiwon CHOI ,  Hyung Min KIM ,  Suh-Yeon DONG ,  Hyunmyung CHO

IPC: A61B5/16 ,  A61B5/00 ,  G06N3/08 ,  G06N20/00 ,  G06F17/18

Abstract: The present invention relates to a stress analysis method including: acquiring bio-signals from a test subject; calculating a probability of each of a plurality of stress level values by processing the bio-signals using a deep neural network algorithm; estimating a stress level value with the maximum probability of the plurality of stress level values as a stress level value of the test subject; determining usefulness of the estimated stress level value; and outputting the estimated stress level value determined to be useful through the determination of usefulness, as the final stress level.

公开(公告)号：US20190029561A1

公开(公告)日：2019-01-31

申请号：US16045245

申请日：2018-07-25

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyung Min KIM ,  Hae Young JOE ,  Ki Joo PAHK ,  Inchan YOUN ,  Seung-Jong KIM

IPC: A61B5/06 ,  A61B6/03 ,  G06T7/00

Abstract: An image registration system using a subject-specific tracker includes: a photographing unit for obtaining a scanning image; a fabricated tracker based on anatomical data of the user including tracking markers for defining relative positions; a recognizing unit configured to recognize positions of the tracking markers and an image registration unit configured to register the scanning image based on the positions of the tracking markers. According to the system, a body part of the user and a scanning image may be automatically registered without a conventional image registration process such as an attachment of a fiducial marker and a confirmation of the fiducial marker position using CT/MRI imaging. Accordingly, it is possible to minimize an error caused by human, ensure precise registration, allow trackers to be attached or detached as necessary during surgery operation, and keep the accuracy of registration after the trackers are attached or detached.

公开(公告)号：US20180064960A1

公开(公告)日：2018-03-08

申请号：US15695804

申请日：2017-09-05

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyung Min KIM ,  Inchan YOUN ,  Seung-Jong KIM ,  Junhyuk CHOI ,  Hongchae BAEK ,  Chan Yul JUNG

IPC: A61N7/00

CPC classification number: A61N7/00 ,  A61B90/10 ,  A61B90/11 ,  A61B90/18 ,  A61B2090/502 ,  A61N2007/0026 ,  A61N2007/006 ,  A61N2007/0078 ,  A61N2007/0082

Abstract: A guide framework for positioning an ultrasonic transducer which emits a focused ultrasound to a target point in carrying out surgery to apply ultrasonic stimulation to a subject's brain, includes a body in a shape of a mask that is laid on the subject's face, and a positioning hole formed through an inner surface and an outer surface of the mask body, the positioning hole into which the ultrasonic transducer is inserted, wherein the inner surface of the mask body is formed to conform a facial contour of the subject, and when the guide framework is laid on the subject's face and the ultrasonic transducer is disposed at the positioning hole, the position of the target point is naturally disposed at a preset stimulation site of the brain. An ultrasonic stimulation device includes an ultrasonic transducer and the guide framework for positioning the ultrasonic transducer.