Technical Note

Medical and Biological Engineering and Computing

, Volume 44, Issue 12, pp 1121-1125

In vivo robotic capsules: determination of the number of turns of its power receiving coil

  • Yong Up LeeAffiliated withDivision of Information Engineering and Telecommunications, Hallym University
  • , Jong Dae KimAffiliated withDivision of Information Engineering and Telecommunications, Hallym University Email author 
  • , Munho RyuAffiliated withCenter for Healthcare Technology Development, Chonbuk National UniversityBioengineering Research Center for the Aged, Chonbuk National University
  • , Jongwon KimAffiliated withBiomedlab Co.

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This paper introduces a strategy how to determine the number of turns of the receiving coil for in vivo robotic capsules to maximize the regulated load power. For the expected functionality additional to the endoscopic function, it is necessary to employ wireless power transmission and increase the receiving power to a maximum. The functional relation between the number of turns and the power is derived and verified by implementing a ferrite-loaded receiver coil.


In vivo robotic capsule Capsule endoscope Power receiving coil Regulated power