Endoscope and magnetic field control method thereof
AssigneeNational Taiwan University
InventorsChih-Wen Liu, R-Shin Tzeng, Gi-Shih Lien
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Abstract
An endoscope device is provided. The endoscope device includes a capsule sensor entering a human body for detection and sending a signal, a driving device movably disposed outside of the human body and moving and rotating the capsule sensor in the human body with non-contact force for omni-directional human body detection, a data receiving device disposed outside of the human body and receiving signals from the capsule sensor, and a power supply device providing power to the driving device and the data receiving device.
Claims7
A magnetic control method for an endoscope device comprising a capsule sensor and a driving device, comprising the following steps:
- providing a turn table and a plurality of outer magnetic elements disposed in the driving device wherein the turn table rotates around a first axis, and the outer magnetic elements are axially disposed with respect to the first axis so that the magnetic poles of the outer magnetic elements whose polarities are different are facing the turn table alternatively;
- providing an inner magnetic element disposed in the capsule sensor and radially disposed with respect to a second axis;
- attracting the inner magnetic element by the magnetic field generated by at least one of the outer magnetic elements;
- moving the capsule sensor by the movement of the driving device;
- rotating the outer magnetic elements around the first axis at a first speed to spin the capsule sensor around the second axis which is perpendicular to the first axis;
- and
- rotating the outer magnetic elements around the first axis at a second speed slower than the first speed to rotate the capsule sensor around a third axis which is parallel with the first axis.
Dependencies are inferred from the claim text.