Title:
MOVABLE CAPSULE DEVICE AND METHOD FOR CONTROLLING SAME
Document Type and Number:
WIPO Patent Application WO/2014/014062
Kind Code:
A1
Abstract:
A movable capsule device (10), in which a long capsule main body (11) is provided with a permanent magnet (13) that is so arranged as to capable of moving in a length direction and a coil that can drive the permanent magnet (13), said movable capsule device (10) being so adapted that an alternate current is applied to the coil to cause the forward-and-backward motion/vibration of the permanent magnet (13), thereby generating a driving power for the whole body of the movable capsule device (10). In the movable capsule device (10), the coil is composed of first and second coil parts (15, 16) that are respectively arranged at the front and back of the permanent magnet (13) so as to surround the permanent magnet (13), and the frequency of an alternate current to be applied to the first and second coil parts (15, 16) is matched with a resonant frequency of the capsule device (10) which is generated by the forward-and-backward motion/vibration of the permanent magnet (13). Thus, it is possible to provide: a movable capsule device (10) which has a small and compact size and can self-propel with high efficiency; and a method for controlling the movable capsule device (10).
Inventors:
ITO TAKAHIRO (JP)
MURAKAMI SUNAO (JP)
MURAKAMI SUNAO (JP)
Application Number:
PCT/JP2013/069536
Publication Date:
January 23, 2014
Filing Date:
July 18, 2013
Export Citation:
Assignee:
KYUSHU INST TECHNOLOGY (JP)
International Classes:
A61B5/07; A61B1/00; A61J3/07; A61M31/00; H02K33/14; H02P25/06
Foreign References:
| JP2006305695A | 2006-11-09 | |||
| JP2003265404A | 2003-09-24 | |||
| JPH06133925A | 1994-05-17 | |||
| JP2013111255A | 2013-06-10 | |||
| JPH04176443A | 1992-06-24 | |||
| JPH05212093A | 1993-08-24 | |||
| JP2006280638A | 2006-10-19 |
Other References:
MITSUKUNI MIZUNO ET AL.: "Development of Capsule Endoscope Self-propelled by Linear Motor Mechanism", THE JAPANESE JOURNAL OF MEDICAL INSTRUMENTATION, vol. 81, no. 3, 1 June 2011 (2011-06-01), pages 181 - 187, XP008174206
See also references of EP 2792299A4
See also references of EP 2792299A4
Attorney, Agent or Firm:
NAKAMAE FUJIO (JP)
Fujio Nakamae (JP)
Fujio Nakamae (JP)
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