Encapsulated medical device guidance system, and method of controlling the same
AssigneesOlympus Medical Systems Corp., Olympus Corporation
InventorsAkio UCHIYAMA, Atsushi KIMURA, Isao AOKI
Life of this patent
Estimating the term…
Abstract
An encapsulated medical device guidance system, and a method of controlling the system, in which guidance coils are arranged to divide a magnetic field generating plane into at least two front and rear areas, a magnetic field for canceling gravity applied to a capsule endoscope itself is formed, and superposed on a magnetic field for moving or changing an attitude, a frictional resistance in moving a capsule endoscope is reduced by decreasing an area of an endoscope to contact the surface of an intracavital.
Claims22
An encapsulated medical device guidance system comprising:
- an encapsulated medical device having an internal biological information acquisition unit to acquire internal biological information, a communication unit to output the acquired internal biological information to the outside as an output signal, and a magnet;
- a magnetic field generator which acts on the magnet, and generates a magnetic field for moving the encapsulated medical device in an objective direction;
- and
- a control unit to control the magnetic field generator in synchronization with the output signal sent from the communication unit.
An encapsulate d medical device guidance system comprising:
- an encapsulated medical device having an internal biological information acquisition unit to acquire internal biological information, a communication unit to output the acquired internal biological information to the outside as an output signal, and a magnet;
- a position detector to detect a position of the encapsulated medical device;
- and
- a magnetic field generator which acts on the magnet, and generates a magnetic field for moving the encapsulated medical device in an objective direction,
- wherein the control unit controls the magnetic field generator in synchronization with the output signal, and the position detector detects a position of the encapsulated medical device in synchronization with the output signal.
An encapsulated medical device guidance system comprising:
- an encapsulated medical device having an internal biological information acquisition unit to acquire internal biological information, a communication unit to output the acquired internal biological information to the outside as an output signal, and a magnet;
- a position detector to detect the position of the encapsulated medical device;
- a magnetic field generator which acts on the magnet, and generates a magnetic field for moving the encapsulated medical device in an objective direction;
- and
- a control unit to control the magnetic field in synchronization with the output signal,
- wherein the control unit receives information about the position and attitude of the encapsulated medical device detected by the position detector, calculates the direction and magnitude of a magnetic field generated from the magnetic field generator, while the output signal is being sent, and controls the magnetic field generator to generate a magnetic field, while the output signal is not being sent.
An encapsulated medical device guidance system comprising:
- an encapsulated medical device having an internal biological information acquisition unit to acquire internal biological information, a communication unit to output the acquired internal biological information to the outside as an output signal, and a magnet;
- a first magnetic field generator which acts on the magnet, and generates a magnetic field for moving the encapsulated medical device in an objective direction;
- a second magnetic field generator which acts on the magnet, and generates a magnetic field for reducing the gravity applied to the encapsulated medical device;
- and
- a control unit to control the first and second magnetic field generators in synchronization with the output signal.
An encapsulated medical device guidance system comprising:
- an encapsulated medical device having an internal biological information acquisition unit to acquire internal biological information, a communication unit to output the acquired internal biological information to the outside as an output signal, and a magnet;
- a magnetic field generator which acts on the magnet, and generates a magnetic field synthesized from a magnetic field for moving the encapsulated medical device in an objective direction and a magnetic field for reducing the gravity applied to the encapsulated medical device;
- and
- a control unit to control the magnetic field generator in synchronization with the output signal.
A method of controlling a system to guide an encapsulated medical device for observing an intracavital while moving in an objective direction in an intracavital based on a detected position and attitude, by a magnetic field acting on a magnet provided in an encapsulated medial device,
- wherein when internal biological information acquired by the encapsulated medical device in the intracavital is sent as an output signal, generation of the magnetic field is stopped in synchronization with the output signal in the period of sending the output signal.
A method of controlling a system to guide an encapsulated medical device for observing an intracavital while moving in an objective direction in the intracavital based on a detected position, by a magnetic field acting on a magnet provided in an encapsulated medial device,
- wherein when internal biological information acquired by the encapsulated medical device in the intracavital is sent as an output signal, generation of the magnetic field is stopped, and a position of the encapsulated medical device is detected in synchronization with the output signal in the period of sending the output signal.
A method of controlling an encapsulated medical device guidance system, which is a method of controlling a system to guide an encapsulated medical device for observing an intracavital while moving in an objective direction in the intracavital based on a detected position and attitude, by a magnetic field acting on a magnet provided in an encapsulated medial device,
- wherein a direction and magnitude of the magnetic field to be generated are calculated based on information about detected position and attitude of the encapsulated medical device, while the output signal is being sent, and the magnetic field is generated based on the calculation result, while the output signal is not being sent.
A method of controlling a system to guide an encapsulated medical device for observing an intracavital while moving in an objective direction in the intracavital based on a detected position and attitude, by a magnetic field acting on a magnet provided in an encapsulated medial device,
- wherein the magnitude of the magnetic field to be generated is controlled by adjusting a duration time of a magnetic field.
A method of controlling a system to guide an encapsulated medical device for observing an intracavital while moving in an objective direction in the intracavital based on a detected position and attitude, by a magnetic field acting on a magnet provided in an encapsulated medial device,
- wherein the magnitude of the magnetic field to be generated is controlled by adjusting the number of magnetic field pulses.
Dependencies are inferred from the claim text.