Single-fiber endoscopic system

Abstract

The invention discloses a single-fiber endoscopic system. The system comprises an integrated optical coherence tomography module and a fractional flow reverse detection module, and the integrated optical coherence tomography module is connected with the fractional flow reverse detection module through a fiber; and the integrated optical coherence tomography module includes an endoscopic probe unit, and the endoscopic probe unit includes an annular flexible tube, a fixed bearer, an elongated single fiber, a first magnet, a second magnet and a lens. The optical coherence tomography module and the fractional flow reverse detection module are integrated in one system by using a characteristic that different magnetic fields apply driving forces in different directions to the above two magnets in order to make the optical fiber shift, so the consistency of a detection area is ensured, and the accuracy and the success rate of detection are improved.

Description

technical field [0001] The invention relates to the technical fields of optical coherence tomography and blood flow reserve fraction detection, in particular to a single optical fiber endoscopic system. Background technique [0002] The optical endoscopic biopsy method for diagnosing human tissue lesions has become a major direction of modern optical technology applications. Traditional optical endoscopy can only observe the surface of internal tissues. Ultrasonic endoscopy can observe the tissue morphology of organ sections, but due to its low resolution, it is often difficult to achieve the resolution level required for accurate diagnosis. [0003] Optical coherence tomography (OCT) is a tomographic imaging technology developed in recent years, which can realize non-contact, non-invasive, high-resolution imaging of tissue structure and physiological functions inside non-transparent high-scattering media. The combination of optical coherence tomography and endoscopic techn...

AI Technical Summary

Problems solved by technology

Two insertions increase the pain of the patient, the cost of the two probes is also high, and the consistency of the detection area cannot be guaranteed

[0006] Moreover, the overall diameter of the single-fiber endoscope based on piezoelectric drive is still greater than 1 mm, and it cannot easily enter some thinner cavities in the human body for in-situ monitoring and corresponding auxiliary treatment in vivo. The process is also relatively difficult. The international community has not recommended the widespread use of PZT, which is harmful to the environment (because it contains lead), as a piezoelectric material.

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