Wireless power supply system, capsulated endoscope, and capsulated endoscopic system

• US 8,591,403 B2
• Filed: 01/23/2008
• Issued: 11/26/2013
• Est. Priority Date: 01/24/2007
• Status: Active Grant

• Current Assignee: Olympus Corporation
• Original Assignee: Olympus Corporation
• Inventors: Yoshida, Naoki, Sakai, Youhei
• Primary Examiner(s): Smith, Philip R
• Assistant Examiner(s): CHOU, WILLIAM B
• Application Number:
  US12/018,603
• Publication Number:
  US 20080177143A1
• Time in Patent Office: 2,134 Days
• Field of Search: 600/40, 600/109, 600/130, 600/160, 600/407, 307/104, 343/895
• US Class Current: 600/130
• CPC Class Codes: A61B 1/00016 using wireless means
• CPC Class Codes: A61B 1/00029 externally powered, e.g. wireless
• CPC Class Codes: A61B 1/041 Capsule endoscopes for imaging
• CPC Class Codes: A61B 1/0684 using light emitting diodes [LED]
• CPC Class Codes: A61B 2560/0219 of externally powered implanted units
• CPC Class Codes: A61B 5/073 Intestinal transmitters
• CPC Class Codes: H02J 2310/23 The load being a medical device, a medical implant, or a life supporting device
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/402 the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas

Abstract

In a wireless power supply system including a power feeding system equipped with a transmission antenna for wirelessly transmitting an electric power from a power source, and a receiver antenna formed by winding a receiver coil around an outer periphery of a substantially bar-like core member for receiving the transmitted electric power, the length of the core member of the receiver antenna is more than 10 times longer than the diameter of the core member.

Claims

1. A capsulated endoscope comprising:

a receiver antenna formed by winding a receiver coil around an outer periphery of a substantially bar-like core member for wirelessly receiving an electric power, the core member being solid and formed of a high magnetic permeability magnetic material,

wherein the core member of the receiver antenna is arranged in a longitudinal direction along an outer case of the capsulated endoscope,

wherein a length of the core member of the receiver antenna is 10 to 15 times longer than a diameter of the core member, and the receiver coil of the receiver antenna is tightly wound around a center of the core member,

wherein a plurality of the receiver antennas are disposed in which the receiver coils are electrically connected in series or in parallel, and

wherein the plurality of the receiver antennas have longitudinal axes of the core members arranged in parallel, and are disposed at respective peaks of a regular polygon, with respect to the outer case.

2. A capsulated endoscopic system comprising:

a power feeding system equipped with a transmission antenna for wirelessly transmitting an electric power from a power source; and

a capsulated endoscope which contains a receiver antenna formed by winding a receiver coil around an outer periphery of a substantially bar-like core member for receiving the transmitted electric power,

wherein the core member of the receiver antenna is arranged in a longitudinal direction along an outer case of the capsulated endoscope,

wherein a length of the core member of the receiver antenna is 10 to 15 times longer than a diameter of the core member, and the receiver coil of the receiver antenna is tightly wound around a center of the core member,

wherein a plurality of the receiver antennas have the receiver coils electrically connected in series or in parallel, and

wherein the plurality of the receiver antennas have longitudinal axes of the core members arranged in parallel, and are disposed at respective peaks of a regular polygon, with respect to the outer case.