Photoacoustic endoscopic device

Abstract

The invention provides a photoacoustic endoscopic device, and relates to the technical field of endoscopes. The photoacoustic endoscopic device comprises an optical fiber bundle, an optical probe, a long prism and an acoustic probe, wherein the optical fiber bundle is used for conducting laser; the optical probe is connected with the optical fiber bundle, and is used for coupling, shaping and outputting the laser conducted by the optical fiber bundle; the long prism is arranged at one side of the optical probe, and is used for gathering the coupled and shaped laser output by the optical probe and enabling the laser to irradiate a biological tissue; and the acoustic probe is arranged at one side, away from the optical probe, of the long prism, is confocal with an optical path of the optical probe, and is used for receiving ultrasonic waves generated by the laser irradiating the biological tissue, and obtaining a distribution image corresponding to the biological tissue according to the ultrasonic waves. The photoacoustic endoscopic device has the beneficial effects that the shaping of the laser beam from the optical fiber to the biological tissue is realized, the detection depth is deeper, and the detection width is larger, so that the larger coverage range is realized, and the medical endoscopic detection efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of endoscopes, in particular to a photoacoustic endoscope device. Background technique [0002] Photoacoustic endoscopic device is a device used in the field of medical imaging, which can be used in subcutaneous tissue, rectum or prostate. Contrast, and can achieve a penetration depth that cannot be achieved by traditional optical imaging. It combines the advantages of the high contrast characteristics of pure optical imaging and the high penetration depth characteristics of pure ultrasound imaging, which improves the imaging clarity and avoids the influence of light scattering in principle. , broke through the "soft limit" of high-resolution optical imaging depth, and can realize deep molecular imaging in vivo. The current photoacoustic endoscopic device mainly uses circular scanning, and the scanning range of each point is limited, and it needs a large scanning range. A photoacoustic endoscopic probe with...

AI Technical Summary

Problems solved by technology

[0002] Photoacoustic endoscopic device is a device applied in the field of medical imaging, which can be used in subcutaneous tissue, rectum or prostate. Contrast, and can achieve a penetration depth that cannot be achieved by traditional optical imaging. It combines the advantages of the high contrast characteristics of pure optical imaging and the high penetration depth characteristics of pure ultrasound imaging, which improves the imaging clarity and avoids the influence of light scattering in principle. , broke through the "soft limit" of high-resolution optical imaging depth, and can realize deep molecular imaging in vivo. The current photoacoustic endoscopic device mainly uses circular scanning, and the scanning range of each point is limited, and requires a large scanning range, scanning A photoacoustic endoscopic probe with sufficient depth has certain shortcomings

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