公开(公告)号：US12011223B2

公开(公告)日：2024-06-18

申请号：US17280284

申请日：2019-10-08

Applicant: Korea Research Institute of Standards and Science

Inventor： Sang Won Lee ,  Il Doh ,  Hyunji Lee

IPC: A61B3/00 ,  A61B3/10 ,  A61B3/12

CPC classification number: A61B3/0025 ,  A61B3/102 ,  A61B3/1241

Abstract: The present invention relates to an eye phantom for evaluating a retinal angiography image, and a manufacturing method therefor. A purpose of the present invention is to provide an eye phantom for evaluating a retinal angiography image, capable of simulating even the vascular structure and blood flow of a retina so as to be more similar to an actual retinal structure than a conventional eye phantom; and a manufacturing method therefor. More specifically, a purpose of the present invention is to provide an eye phantom for evaluating a retinal angiography image, including various shapes of fine fluid channel structures corresponding to the vascular structure formed in an actual retina; and a manufacturing method therefor.

公开(公告)号：US09711132B1

公开(公告)日：2017-07-18

申请号：US15247334

申请日：2016-08-25

Applicant: Korea Research Institute of Standards and Science

Inventor： Yong Tae Kim ,  Kyung Min Baik ,  Il Doh ,  Se Hwa Kim

IPC: G10K11/30 ,  G01S7/521 ,  G01S15/02

CPC classification number: G10K11/30 ,  G01S7/521 ,  G01S15/02

Abstract: The present disclosure relates to an acoustic lens using a Fresnel zone plate, a design method and a manufacturing method of the acoustic lens, a focusing ultrasonic transducer to which the acoustic lens is applied, and a manufacturing method of the focusing ultrasonic transducer. More specifically, an acoustic lens using a Fresnel zone plate which is applied to a focusing ultrasonic transducer. The acoustic lens includes a plurality of concentric regions which is concentrically disposed with respect to a center point. In the concentric region, a sound insulation region which blocks an entering sound wave and a transmission region which transmits the sound wave are alternately formed in a radial direction from the center point, and the entering sound wave is focused near a focal point.

公开(公告)号：US12208417B2

公开(公告)日：2025-01-28

申请号：US17325669

申请日：2021-05-20

Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

Inventor： Yong Tae Kim ,  Kyung Min Baik ,  Sung Mok Kim ,  Hyung Jin Lee ,  Il Doh

IPC: B06B1/06 ,  H10N30/06

Abstract: The present invention relates to a flat-plate focusing ultrasonic transducer and an acoustic lens composed of an annular array piezoelectric element and methods of manufacturing and designing thereof, more particularly to a flat-plate focusing ultrasonic transducer composed of an annular array piezoelectric element, wherein the annular array piezoelectric element has a plurality of concentric regions which is concentrically arranged in a concentric circle shape with respect to a center point, the concentric region has ring shaped sound insulation regions and piezoelectric regions which are alternatively formed in a direction from the center point to a radius direction, so as to focus a sound wave near a focal point, wherein the piezoelectric regions are composed of a piezoelectric ring that is composed of a piezoelectric material and thus excites a sound wave, the concentric region is in a shape of a flat-plate of which both sides are flat and which has a constant thickness, and each radius of the plurality of the sound insulation regions and the piezoelectric regions in the concentric region are calculated based on a set focal length of the ultrasonic transducer and a frequency of a set sound wave.

公开(公告)号：US20220000356A1

公开(公告)日：2022-01-06

申请号：US17280284

申请日：2019-10-08

Applicant: Korea Research Institute of Standards and Science

Inventor： Sang Won Lee ,  Il Doh ,  Hyunji Lee

IPC: A61B3/00 ,  A61B3/12 ,  A61B3/10

Abstract: The present invention relates to an eye phantom for evaluating a retinal angiography image, and a manufacturing method therefor. A purpose of the present invention is to provide an eye phantom for evaluating a retinal angiography image, capable of simulating even the vascular structure and blood flow of a retina so as to be more similar to an actual retinal structure than a conventional eye phantom; and a manufacturing method therefor. More specifically, a purpose of the present invention is to provide an eye phantom for evaluating a retinal angiography image, including various shapes of fine fluid channel structures corresponding to the vascular structure formed in an actual retina; and a manufacturing method therefor.

公开(公告)号：US09737284B2

公开(公告)日：2017-08-22

申请号：US14522351

申请日：2014-10-23

Applicant: Korea Research Institute of Standards and Science

Inventor： Yong Tae Kim ,  Bong Young Ahn ,  Il Doh ,  Wuon-Shick Kim

IPC: A61B8/00 ,  G01N29/30

CPC classification number: A61B8/587 ,  G01N29/30 ,  G01N2291/02475

Abstract: A phantom for measuring thickness of a thin layer and a method of using thereof. The phantom may include a non-scattering muscle mimicking material having a flat top surface; a plurality of soft tissue mimicking thin layers placed in a first area, which is at least a part of a top surface of the non-scattering muscle mimicking material, and having thicknesses different from each other; and an anechoic blood mimicking liquid material placed in an area other than the first area among an entire area of the top surface of the non-scattering muscle mimicking material and on a top surface of the plurality of soft tissue mimicking thin layers.

公开(公告)号：US20160113634A1

公开(公告)日：2016-04-28

申请号：US14522351

申请日：2014-10-23

Applicant: Korea Research Institute of Standards and Science

Inventor： Yong Tae Kim ,  Bong Young Ahn ,  Il Doh ,  Wuon-Shick Kim

IPC: A61B8/00 ,  G01N29/30

CPC classification number: A61B8/587 ,  G01N29/30 ,  G01N2291/02475

Abstract: A phantom for measuring thickness of a thin layer and a method of using thereof. The phantom may include a non-scattering muscle mimicking material having a flat top surface; a plurality of soft tissue mimicking thin layers placed in a first area, which is at least a part of a top surface of the non-scattering muscle mimicking material, and having thicknesses different from each other; and an anechoic blood mimicking liquid material placed in an area other than the first area among an entire area of the top surface of the non-scattering muscle mimicking material and on a top surface of the plurality of soft tissue mimicking thin layers.

Abstract translation: 用于测量薄层厚度的体模及其使用方法。 该体模可以包括具有平坦顶表面的非散射肌肉模拟材料; 多个软组织，其模拟放置在第一区域中的薄层，所述第一区域是不散射肌肉模拟材料的顶表面的至少一部分，并且具有彼此不同的厚度; 以及放置在非散射肌肉模拟材料的上表面的整个区域中的除第一区域之外的区域中以及在模拟薄层的多个软组织的顶表面上的消声血液模拟液体材料。