Rotary side scan OCT eyeball endoscope structure

Abstract

The invention relates to the technical field of ophthalmic medical devices, and discloses an eyeball OCT endoscope with a variable scanning mode realized by an optical fiber imaging fiber bundle. Theeyeball OCT endoscope comprises a fiber adjusting mechanism, a front scanning mechanism and a side scanning mechanism: the fiber adjusting mechanism comprises: a fiber generator, a fiber collimator, afiber bundle, an X-direction reflector and a Y-direction reflector; the front scanning mechanism comprises: a metal casing I, a fiber endoscope and a microlens; the side scanning mechanism comprisesa metal casing II, a side scan opening and a bevel port reflector. The eyeball OCT endoscope with the variable scanning mode realized by the optical fiber imaging fiber bundle is characterized in thatby arranging the X-direction reflector, the Y-direction reflector and the fiber endoscope, with arrangement of a separation structure, the X / Y-dimensions tomographic scan operation can be realized, the 3D scan image in an observation area can be obtained, so as to better realize the effect of navigation and positioning, and the endoscope structure further satisfy the actual clinical use requirement.

Description

technical field [0001] The invention relates to the technical field of ophthalmic medical equipment, in particular to a rotating side-scan OCT eyeball endoscope structure. Background technique [0002] The optical fiber-based endoscope is a new application expansion of OCT technology, and it is expected to play an important role in intraoperative navigation and imaging in vitrectomy in the future. [0003] The key technical parameters of the eyeball endoscope are its outer diameter, scanning range and imaging resolution. In the wave cutting operation, the outer diameter of the endoscope is required to be as small as possible, the scanning range as large as possible, and the resolution as high as possible. [0004] However, the existing eyeball endoscope is controlled by a single motor, and the end face of the reflective optical fiber is a planar structure. Although endoscopic fundus OCT imaging has been realized for the first time, there are two obvious defects: [0005] 1....

AI Technical Summary

Problems solved by technology

[0008] The invention provides a rotating side-scanning OCT eyeball endoscope structure, which has the advantages of large scanning range, 3D area imaging, small outer diameter and high resolution, and solves the problem of existing endoscope scanning range. Small, can only do a single-dimensional tomographic scan, can not get 3D images of the region, and the outer diameter of the plane end face is relatively large, it is difficult to control it to within 1mm

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