Optical coherence tomography device

1. An optical coherence tomography device, comprising:

a base,

a movable base, and

a second drive mechanism;

wherein

a first end of the base is provided with a detection end, and a second end of the base is provided with a mounting end;

an optical imaging catheter is pivotally connected to the detection end;

the optical imaging catheter moves along a length direction of the base;

the optical imaging catheter is provided with an imaging end and a connecting end, wherein the connecting end is detachably connected to the detection end, and the connecting end is provided with a first connecting part;

the movable base is mounted at the mounting end and the movable base moves toward or away from the detection end along the length direction of the base;

the movable base is provided with a fiber optic rotary joint configured to transmit optical signals, a hollow shaft and a first drive mechanism;

the fiber optic rotary joint is set away from the detection end, and the fiber optic rotary joint is fixedly connected to the movable base;

an end of the fiber optic rotary joint is adjacent to the detection end, and the end of the fiber optic rotary joint extends into the hollow shaft;

the hollow shaft is pivotally connected to the movable base, and an end of the hollow shaft adjacent to the detection end is provided with a second connecting part;

when the movable base moves toward the detection end, the second connecting part is configured to be connected to the first connecting part, and the optical imaging catheter is coupled with the hollow shaft to connect the optical imaging catheter to an optical path of the fiber optic rotary joint;

the first drive mechanism is configured to drive the hollow shaft to rotate; and

the second drive mechanism is configured to drive the movable base to move along the length direction of the base.

2. The optical coherence tomography device according to claim 1 , wherein

a clamping member and a third drive mechanism are arranged on the movable base, and the clamping member is arranged under the second connecting part;

the third drive mechanism is configured to drive the clamping member to move toward or away from the second connecting part along a height direction of the base; and

when the first connecting part and the second connecting part are connected, the clamping member moves toward the second connecting part to tightly clamp the first connecting part and the second connecting part.

3. The optical coherence tomography device according to claim 2 , wherein

the third drive mechanism comprises a first linear motor, and a housing of the first linear motor is fixedly connected to the movable base; and

the clamping member is fixedly connected to a power output end of the first linear motor.

4. The optical coherence tomography device according to claim 2 , wherein

the detection end of the base is provided with a first trigger switch, and the first trigger switch is configured to transmit a first trigger signal to the third drive mechanism after the clamping member tightly clamps the first connecting part and the second connecting part.

5. The optical coherence tomography device according to claim 1 , wherein

the first drive mechanism comprises a synchronous motor, a synchronous belt and two synchronous wheels;

a housing of the synchronous motor is fixedly connected to the movable base;

a rotating shaft of the synchronous motor is fixedly connected to a first synchronous wheel of the two synchronous wheels, and a second synchronous wheel of the two synchronous wheels is sleeved on an outside of the hollow shaft and the second synchronous wheel is fixedly connected to the hollow shaft; and

two ends of the synchronous belt are synchronously wound around the two synchronous wheels.

6. The optical coherence tomography device according to claim 1 , wherein

the second drive mechanism comprises a leadscrew motor, a leadscrew, a nut, and a guide mechanism;

a housing of the leadscrew motor is fixedly connected to the base;

the leadscrew extends along the length direction of the base and the leadscrew is synchronously connected to a rotation shaft of the leadscrew motor;

the nut is sleeved on an outside of the leadscrew and the nut is in a thread-fit with the leadscrew;

the nut is fixedly connected to a bottom end of the movable base, and

the nut is guided by the guide mechanism to move along the length direction of the base.

7. The optical coherence tomography device according to claim 1 , wherein

the detection end of the base is provided with a stop block and a fourth drive mechanism, and the stop block is movably mounted at the detection end;

the fourth drive mechanism is configured to drive the stop block to move toward or away from the connecting end; and

the stop block is configured to block an end surface of the connecting end after moving toward the connecting end.

8. The optical coherence tomography device according to claim 7 , wherein

the fourth drive mechanism comprises a second linear motor, and a housing of the second linear motor is fixedly connected to the base; and

the stop block is fixedly connected to a power output end of the second linear motor.

9. The optical coherence tomography device according to claim 7 , wherein

the detection end of the base is provided with a second trigger switch, and the second trigger switch is configured to transmit a second trigger signal to the fourth drive mechanism when the stop block blocks the end surface of the connecting end.

10. The optical coherence tomography device according to claim 1 , wherein

a third trigger switch is arranged on the hollow shaft, and the third trigger switch is configured to transmit a third trigger signal to the first drive mechanism after the hollow shaft rotates an angle A.