Breast duct endoscope imaging probe
An imaging probe and endoscope technology, applied in endoscopy, mammography, medical science, etc., can solve the problems of limited image resolution, complex optical design, limited imaging depth of ductoscope, etc., to improve detection sensitivity and image resolution, high detection sensitivity and image resolution, the effect of reducing the difficulty of optical design
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[0039] Example one:
[0040] The invention provides a breast duct endoscopic imaging probe based on the principle of acousto-optic imaging, such as image 3 As shown, it includes an optical fiber, a collimating and converging element 40, a reflecting element 30, and a capsule 60. The optical fiber includes an excitation fiber 50 and a receiving fiber 10. The probe also includes an optical resonance element for changing the resonance frequency under the returned ultrasonic wave. 20. The positional relationship of the excitation fiber 50, the receiving fiber 10, the collimating and converging element 40, the reflecting element 30, the capsule 60 and the optical resonant element 20 meets the following optical path: the pulsed laser is coupled into one end of the excitation fiber 50, in the excitation fiber The other end of 50 is focused and irradiated to the first reflecting surface 31 of the reflecting element 30 by the collimating and converging element 40, and then reflected, and...
Example Embodiment
[0045] Embodiment two:
[0046] The principle and structure of this embodiment are the same as the first embodiment, and the difference lies in: Image 6 As shown, the reflecting element 30 includes two independent reflecting mirrors; the first reflecting mirror 33 is used to reflect or converge the laser light output from the collimating and converging element and has an optical reflecting surface; the second reflecting mirror 34 is used to reflect Or converge the reflected ultrasonic signal, with a stainless steel reflective surface.
Example Embodiment
[0047] Embodiment three:
[0048] The principle and structure of this embodiment are the same as the first embodiment, and the difference lies in: Figure 7 As shown, the reflecting element 30 includes an independent third reflecting mirror 36 and an independent third reflecting surface 35, wherein the third reflecting surface 35 is used to reflect or condense the laser light output from the collimating and converging element 40, It is the end surface or polished surface of the excitation fiber 50 at a certain angle (for example, 45 degrees); the third reflector 36 is used to reflect or converge the reflected ultrasonic signal, and has a stainless steel reflector surface.
[0049] The reflective surface or mirror of the reflective element 30 is processed by a surface coating process.
[0050] The optical resonant element 20 may also be another optical resonant cavity with Fano resonance effect, such as a photonic crystal of metal surface plasmon or a reflective grating.
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