Drive unit, diagnostic imaging apparatus, and operation method

An operation method of a drive unit, the drive unit comprising a scanner unit to which a catheter, in which is positioned an imaging core that executes tomographic imaging, is connectable, and a pull-back unit configured to support the scanner unit such that the scanner unit is displaceable in a predetermined direction relative to the pull-back unit, the operation method comprising:

• limiting, by a brake unit, a displacement speed of the scanner unit relative to the pull-back unit to a speed equal to or less than a predetermined speed when the scanner unit is in a non-hold state in which displacement of the scanner unit relative to the pull-back unit is not restricted;
• and
• stopping, by the brake unit, displacement of the scanner unit when the displacement speed of the scanner unit relative to the pull-back unit exceeds the predetermined speed.

An operation method of a drive unit, the drive unit comprising a scanner unit to which a catheter, in which is positioned an imaging core that executes tomographic imaging, is connectable, and a pull-back unit configured to support the scanner unit such that the scanner unit is displaceable in a predetermined direction relative to the pull-back unit, the operation method comprising:

• limiting, by a brake unit, a displacement speed of the scanner unit relative to the pull-back unit to a speed equal to or less than a predetermined speed when the scanner unit is in a non-hold state in which displacement of the scanner unit relative to the pull-back unit is not restricted;
• and
• controlling, by the brake unit, the displacement speed of the scanner unit relative to the pull-back unit such that the displacement speed does not exceed the predetermined speed.