Medical apparatus, medical apparatus guide system, capsule type medical apparatus, and capsule type medical apparatus guide apparatus

A medical apparatus comprising:

• a capsule endoscope having a main body for insertion into a body cavity, the main body having an approximately cylindrical outside shape;
• a magnet disposed in the main body having an N-pole offset from a cylindrical axis of the capsule endoscope body in a first direction and an S-pole being offset from the cylindrical axis in a second direction opposite to the first direction;
• a spiral structure disposed around a side of the main body of the capsule endoscope;
• a thrust generation mechanism having a rotation drive means for rotating the spiral structure about the cylindrical axis of the main body and generating a thrust in the direction of the cylindrical axis;
• and
• a magnetic field generation device configured to generate a first magnetic field in a direction having lines of action in parallel with the cylindrical axis and a second magnetic field in an opposite direction having lines of action parallel to the cylindrical axis and further configured to periodically change between the first magnetic field and the second magnetic field thereby acting on the N-pole and the S-pole so a to make the main body of the capsule endoscope vibrate about an axis perpendicular to the cylindrical axis.

A medical apparatus guide system for guiding a medical apparatus into a body cavity comprising:

• a rotation magnetic field generation device for generating a rotation magnetic field;
• a magnetic field generation device for generating a magnetic field in a direction perpendicular to the rotation plane of the rotation magnetic field;
• a medical apparatus main body having an insert portion inserted into the body cavity;
• a thrust generation structure disposed to the medical apparatus main body;
• and
• a magnet fixed to the medical apparatus main body with a magnetic pole direction facing a direction perpendicular to the thrust generating direction of the thrust generation structure,
• wherein the magnet has an N-pole in a first direction and an S-pole in a second direction opposite to the first direction, and
• wherein the magnetic field generation device is configured to generate first and second magnetic fields perpendicular to the rotation plane of the rotation magnetic field and in opposite directions, respectively, to generate lines of action parallel to the perpendicular direction in the medical apparatus main body and further configured to periodically change between the first magnetic field and the second magnetic field thereby acting on the N-pole and the S-pole so as to make the medical apparatus main body vibrate about an axis perpendicular to the thrust generating device.