Locking structure, handle, thrombectomy device and sheathing canal assembly

The invention discloses a locking structure, a handle, a thrombectomy device and a sheathing canal assembly, and relates to the technical field of medical instruments. The locking structure is applied to the thrombectomy device and accessories of the thrombectomy device. The locking structure comprises a rotary knob and a sliding connector, and the sliding connector is used for being installed on a handle shell of the thrombectomy device or an accessory of the thrombectomy device in a sliding mode so as to drive a corresponding outer sleeve to move. The knob is rotatably arranged on the sliding joint, so that the locking structure is switched between a locking state and an unlocking state; under the condition that the locking structure is in a locking state, the knob can rotate to a first position in positioning fit with the shell so as to lock the sliding joint; and under the condition that the locking structure is in the unlocking state, the knob can rotate to a second position for releasing the positioning