Miniaturization of Implantable Micro-Robot Propulsion Using a Wireless Power Transfer System

This paper presents an efficient coil design for a mm-sized micro-robot which generates a propulsion force and torque and receives electrical energy using a wireless power transfer system. To determine the most efficient coil structures and produce propulsion and torque on the micro-robot, both heli...

Full description

Bibliographic Details
Main Authors: Dongwook Kim, Karam Hwang, Jaehyoung Park, Hyun Ho Park, Seungyoung Ahn
Format: Article
Language:English
Published: MDPI AG 2017-09-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/8/9/269
_version_ 1811316308912898048
author Dongwook Kim
Karam Hwang
Jaehyoung Park
Hyun Ho Park
Seungyoung Ahn
author_facet Dongwook Kim
Karam Hwang
Jaehyoung Park
Hyun Ho Park
Seungyoung Ahn
author_sort Dongwook Kim
collection DOAJ
description This paper presents an efficient coil design for a mm-sized micro-robot which generates a propulsion force and torque and receives electrical energy using a wireless power transfer system. To determine the most efficient coil structures and produce propulsion and torque on the micro-robot, both helical and spiral coil modeling was conducted, and analytical formulations of the propulsion force and torque were derived for helical and spiral coil structures. Additionally, the dominant dimensional factors for determining propulsion and coil torque were analyzed in detail. Based on the results, an optimum coil structure for generating maximum force on the micro-robot was developed and is herein presented with dimensional analysis. Simulations and experiments were also conducted to verify the design, and good agreement was achieved. A 3-mm micro-robot that simultaneously generated a propulsion force and torque and received electrical energy via wireless power transfer was successfully fabricated using the proposed method and verified.
first_indexed 2024-04-13T11:46:43Z
format Article
id doaj.art-ed17b5a4932f451a9b4a65824ddde782
institution Directory Open Access Journal
issn 2072-666X
language English
last_indexed 2024-04-13T11:46:43Z
publishDate 2017-09-01
publisher MDPI AG
record_format Article
series Micromachines
spelling doaj.art-ed17b5a4932f451a9b4a65824ddde7822022-12-22T02:48:10ZengMDPI AGMicromachines2072-666X2017-09-018926910.3390/mi8090269mi8090269Miniaturization of Implantable Micro-Robot Propulsion Using a Wireless Power Transfer SystemDongwook Kim0Karam Hwang1Jaehyoung Park2Hyun Ho Park3Seungyoung Ahn4The Cho Chun Shik Graduate School for Green Transportation, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, KoreaThe Cho Chun Shik Graduate School for Green Transportation, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, KoreaThe Cho Chun Shik Graduate School for Green Transportation, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, KoreaDepartment of Electronic Engineering, the University of Suwon, Hwaseong 18123, KoreaThe Cho Chun Shik Graduate School for Green Transportation, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, KoreaThis paper presents an efficient coil design for a mm-sized micro-robot which generates a propulsion force and torque and receives electrical energy using a wireless power transfer system. To determine the most efficient coil structures and produce propulsion and torque on the micro-robot, both helical and spiral coil modeling was conducted, and analytical formulations of the propulsion force and torque were derived for helical and spiral coil structures. Additionally, the dominant dimensional factors for determining propulsion and coil torque were analyzed in detail. Based on the results, an optimum coil structure for generating maximum force on the micro-robot was developed and is herein presented with dimensional analysis. Simulations and experiments were also conducted to verify the design, and good agreement was achieved. A 3-mm micro-robot that simultaneously generated a propulsion force and torque and received electrical energy via wireless power transfer was successfully fabricated using the proposed method and verified.https://www.mdpi.com/2072-666X/8/9/269micro-robotbiomedical deviceswireless power transferminiaturizationpropulsion
spellingShingle Dongwook Kim
Karam Hwang
Jaehyoung Park
Hyun Ho Park
Seungyoung Ahn
Miniaturization of Implantable Micro-Robot Propulsion Using a Wireless Power Transfer System
Micromachines
micro-robot
biomedical devices
wireless power transfer
miniaturization
propulsion
title Miniaturization of Implantable Micro-Robot Propulsion Using a Wireless Power Transfer System
title_full Miniaturization of Implantable Micro-Robot Propulsion Using a Wireless Power Transfer System
title_fullStr Miniaturization of Implantable Micro-Robot Propulsion Using a Wireless Power Transfer System
title_full_unstemmed Miniaturization of Implantable Micro-Robot Propulsion Using a Wireless Power Transfer System
title_short Miniaturization of Implantable Micro-Robot Propulsion Using a Wireless Power Transfer System
title_sort miniaturization of implantable micro robot propulsion using a wireless power transfer system
topic micro-robot
biomedical devices
wireless power transfer
miniaturization
propulsion
url https://www.mdpi.com/2072-666X/8/9/269
work_keys_str_mv AT dongwookkim miniaturizationofimplantablemicrorobotpropulsionusingawirelesspowertransfersystem
AT karamhwang miniaturizationofimplantablemicrorobotpropulsionusingawirelesspowertransfersystem
AT jaehyoungpark miniaturizationofimplantablemicrorobotpropulsionusingawirelesspowertransfersystem
AT hyunhopark miniaturizationofimplantablemicrorobotpropulsionusingawirelesspowertransfersystem
AT seungyoungahn miniaturizationofimplantablemicrorobotpropulsionusingawirelesspowertransfersystem