Optical fiber guidewire, detection system with optical fiber guidewire and detection method using optical fiber guidewire

A detection system comprising:

• an optical fiber guidewire;
• a control center arranged for sending control signals to an attitude controller, a pulsed detection laser, a waveform collector and a treatment laser to control a start-up, operation or shutdown of the attitude controller, the pulsed detection laser, the waveform collector and the treatment laser;
• the attitude controller arranged for receiving signals sent by the control center and distance information, and driving the optical fiber guidewire to entry or exit a body cavity or move in the body cavity;
• the pulsed detection laser arranged for receiving signals sent by the control center, and sending out pulsed laser light which is transmitted to the body cavity through the optical fiber guidewire and forms laser scattering within the body cavity;
• the waveform collector arranged for receiving signals sent by the control center, collecting and analyzing a delayed waveform of scattered laser in the body cavity, to obtain the distance information about a distance between a wall of the body cavity and the optical fiber guidewire, and feedback the distance information to the control center.