Docking system with inductive powering for capsule camera
Inventors
Wilson, Gordon C. • Luo, Jiafu • Wang, Kang-Huai • Lee, Chung-Ta
Assignees
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Publication Number
US-10869594-B2
Publication Date
2020-12-22
Expiration Date
Abstract
A capsule endoscopic system is disclosed, where the system comprises a capsule device and a docking device. The capsule device comprises a battery, a secondary coil, and a capsule housing to enclose the battery and the secondary coil in a sealed environment, where the capsule device consists of a first end and a second end in a longitudinal direction of the capsule device, and the battery is located in proximity to the first end and the secondary coil is located in proximity to the second end. The docking device comprises an opening on the docking device, a primary coil to generate an alternating magnetic field, and a primary core. The capsule endoscopic system is arranged so that the primary coil is wrapped around at least a portion of the primary core.
Core Innovation
A capsule endoscopic system retrieves data from a swallowable capsule device. The capsule device includes an electronic circuit for retrieving the data and a battery enclosed in a capsule housing that is adapted to be swallowable and to enclose the battery and a secondary coil in a sealed environment. Along a longitudinal axis, the capsule housing has a first end enclosing the battery and a second end enclosing the secondary coil.
The capsule device further comprises a secondary coil that, when coupled to an alternating magnetic field, provides an alternating current. A rectifier circuit derives power from the alternating current to operate the electronic circuit during retrieval of the data. The system includes a docking device with a primary coil that generates the alternating magnetic field and a receptacle that secures the second end of the capsule device in a docked position to allow the secondary coil to couple the alternating magnetic field.
The docking device additionally includes a primary core configured to concentrate the alternating magnetic field, with a gap into which the receptacle is placed. The primary core has one or more pole pieces such that, in the docked position, one or more of the pole pieces direct the alternating magnetic field in the primary core towards the secondary coil and away from the battery. The primary coil is wrapped around a portion of the primary core.
Claims Coverage
The relevant independent claim is the capsule endoscopic system of retrieval of data from a swallowable capsule device, powered via a secondary coil coupled to an alternating magnetic field and rectified to operate the electronic circuit during retrieval. The independent claim includes a docking device with a primary coil, receptacle, primary core with a gap and pole pieces that direct the field toward the secondary coil and away from the battery, where the primary coil is wrapped around a portion of the primary core.
Swallowable sealed capsule device with electronic circuit and rectified secondary-coil power during retrieval
A capsule housing adapted to be swallowable and to enclose a battery and a secondary coil in a sealed environment along a longitudinal axis, where an electronic circuit retrieves the data, a rectifier circuit derives power from an alternating current provided by the secondary coil when coupled to an alternating magnetic field, and the rectifier operates the electronic circuit during retrieval of the data.
Docking device primary coil and receptacle for coupling alternating magnetic field to the capsule secondary coil
A docking device comprising a primary coil that generates the alternating magnetic field and a receptacle for securing the second end of the capsule device in a docked position to allow the secondary coil to couple the alternating magnetic field.
Primary core with gap and pole pieces directing alternating magnetic field toward secondary coil and away from battery
A primary core configured to concentrate the alternating magnetic field and configured with a gap into which the receptacle is placed, the primary core having one or more pole pieces such that, in the docked position, one or more of the pole pieces direct the alternating magnetic field in the primary core towards the secondary coil and away from the battery.
Primary coil wrapped around a portion of the primary core
The primary coil is wrapped around a portion of the primary core.
Across the independent claim, the main inventive coverage combines a swallowable sealed capsule device with an electronic circuit and rectifier-powered operation via a secondary coil coupled to a docked alternating magnetic field, together with a docking device whose primary coil, primary core with a gap and pole pieces, and receptacle arrangement direct the alternating magnetic field toward the capsule secondary coil while directing the field away from the capsule battery.
Stated Advantages
Documented Applications
No documented applications found
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