Optical coherence tomography (oct) catheter for respiratory tract

An optical coherence tomography (OCT) catheter for the respiratory tract, comprising an optical fiber connecting part, wherein the optical fiber connecting part is connected to an optical fiber, and optical signals are transmitted to the optical fiber through the optical fiber connecting part;

• the optical fiber connecting part comprises a connector, a fixing head, a sealing assembly, a guide wire assembly and an optical fiber interface;
• the guide wire assembly is sleeved outside the optical fiber, the optical fiber is connected to the optical fiber interface, an end of the guide wire assembly is sleeved inside the optical fiber interface, the optical fiber interface is connected to an optical fiber coupler of a driving device, the optical fiber coupler is sleeved inside the connector, the connector is sleeved inside the fixing head, an end of the fixing head is sleeved inside the sealing assembly, and the guide wire assembly sequentially passes through the connector, the fixing head and the sealing assembly.