The invention relates to the technical field of coronary
rotational atherectomy, and particularly relates to a
rotational atherectomy interventional treatment instrument for treating a coronary arterycalcification
lesion. The
rotational atherectomy interventional treatment instrument comprises a rotational
atherectomy instrument host, a pedal control board, a
nitrogen tank, a
propeller, a rotational
atherectomy catheter and a rotational
atherectomy guide wire; a
speed reduction switch is arranged on the pedal control board, and the outside of the pedal control board is communicated with a
speed reduction control
pipe and two ventilation hoses; a gas outlet connector is arranged at the top end of the
nitrogen tank, and the gas outlet connector is communicated with a
nitrogen interface by agas supply
pipe; the
propeller comprises a
machine body, a moving
handle, an
optical fiber rotation speed connection cable, a
saline solution input
pipe and a gas connection pipe; a strip slot is formed on the upper end face of the
machine body; the moving
handle is mounted in a sliding mode inside the strip slot; scale lines are also formed on both front and rear sides of the strip slot; and a
handle travel control structure is also mounted in a sliding mode on the
machine body. According to the invention, a forward distance of a rotational atherectomy head can be limited, so as to effectively avoid a deviation generated due to artificial control on the front and rear process of the rotational atherectomy head and protect a coronary
artery canal behind the
calcification lesion position from being damaged.