Capsule-type medical apparatus, guidance system and guidance method therefor, and intrasubject insertion apparatus
First Claim
1. A medical capsule endoscope which is inserted into the body of a subject and is guided by an external magnetic field, the medical capsule endoscope comprising:
- a substantially cylindrical capsule;
a magnet accommodated inside the capsule and configured so that a magnetic-pole direction thereof can be switched between a direction along a longitudinal axis and a direction intersecting the longitudinal axis; and
a securing portion for securing the magnet to the capsule in each of the switched states of the magnetic-pole directionwherein the magnet is secured by the securing portion in one of a first state in which magnetic poles of the magnet are aligned in a direction along the longitudinal axis of the capsule, and a second state in which the magnetic poles of the magnet are in a direction orthogonal to the longitudinal axis of the capsule.
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Accused Products
Abstract
Using a guidance system with a simple configuration, propulsive motion along a longitudinal direction and changing of the propulsion direction are easily performed with good precision and stability. There is provided a capsule-type medical apparatus which is inserted into the body of a subject and is guided by an external magnetic field, the capsule-type medical apparatus comprising: a substantially cylindrical capsule; a propulsion mechanism for converting rotary motion about a longitudinal axis R of the capsule into propulsive motion along the longitudinal axis R; a magnet accommodated inside the capsule and disposed in such a manner that the magnetic-pole direction thereof can be switched between a direction along the longitudinal axis R and a direction intersecting the longitudinal axis R; and a securing portion for securing the magnet to the capsule in each of the switched states of the magnetic-pole direction.
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Citations
4 Claims
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1. A medical capsule endoscope which is inserted into the body of a subject and is guided by an external magnetic field, the medical capsule endoscope comprising:
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a substantially cylindrical capsule; a magnet accommodated inside the capsule and configured so that a magnetic-pole direction thereof can be switched between a direction along a longitudinal axis and a direction intersecting the longitudinal axis; and a securing portion for securing the magnet to the capsule in each of the switched states of the magnetic-pole direction wherein the magnet is secured by the securing portion in one of a first state in which magnetic poles of the magnet are aligned in a direction along the longitudinal axis of the capsule, and a second state in which the magnetic poles of the magnet are in a direction orthogonal to the longitudinal axis of the capsule. - View Dependent Claims (2, 3, 4)
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Specification