Sound-proofing tube for magnetic resonance imaging apparatus, magnetic resonance imaging apparatus, and manufacturing method of sound-proofing tube for magnetic resonance imaging apparatus

A magnetic resonance imaging apparatus comprising:

• a gradient coil provided on an inner circumferential side of a static magnetic field magnet configured to generate a static magnetic field;
• and
• a sound-proofing tube that is for the magnetic resonance imaging apparatus and is formed on an inner circumferential side of the gradient coil by using a composite material including a fiber material and a resin material, wherein
• the fiber material forms a woven structure by being woven therein, and
• the woven structure is formed so as to continuously extend over at least one round of a lateral face of the sound-proofing tube.

A manufacturing method of a magnetic resonance imaging apparatus sound-proofing tube for manufacturing a sound-proofing tube for a magnetic resonance imaging apparatus, the manufacturing method comprising:

• impregnating a fiber material with a resin material;
• continuously winding the fiber material impregnated with the resin material around a lateral face of a mandrel, while weaving the fiber material therein at a plurality of cross angles with respect to a rotation-axis direction of the mandrel;
• hardening the resin material with which the fiber material wound around the mandrel was impregnated;
• and
• pulling a composite material including the hardened resin material and the fiber material off the mandrel.