Multi-position stereoscopic mesoscopic multi-wavelength video ophthalmic operation microscope

Abstract

The invention provides a multi-position stereoscopic mesoscopic multi-wavelength video ophthalmologic operation microscope in the field of microscopes. The microscope comprises a zoom drum which is provided with a first microscope objective group position in the middle, and is symmetrically provided with a plurality of second microscope objective group positions around the first microscope objective group position; a multi-position three-dimensional microscopic camera assembly mounted on the zoom drum through the second microscope objective group; a middle-path microscopic camera mounted on the zoom drum through the first microscopic objective lens group; a multi-wavelength multi-angle lighting assembly arranged under the zoom drum; a multi-position three-dimensional monitor arranged underthe zoom drum and connected with the multi-position three-dimensional microscopic camera assembly; and a multi-directional middle-path monitoring screen arranged under the zoom drum, positioned between the multi-wavelength multi-angle lighting assembly and the multi-position three-dimensional monitor, and connected with the middle-path microscopic camera. The microscope has the advantages that the use convenience, the safety and the image display effect of the microscope are greatly improved, the fatigue of a user is reduced, and the cooperation of multiple persons is facilitated.

Description

technical field [0001] The invention relates to the field of microscopes, in particular to a multi-position stereoscopic multi-wavelength video ophthalmic operating microscope. Background technique [0002] The operating microscope is a commonly used medical operating microscope equipment, and the ophthalmic operating microscope is also widely used in ophthalmic surgery. In the existing surgical microscope, the microscopic observation part mostly adopts an optical system composed of optical lenses such as the main objective lens, the zoom objective lens pair, the beam splitting prism, and the eyepiece; As a light source, the lighting system is composed of light guides and other optical components, including coaxial lighting, oblique lighting and slit lighting. [0003] Quoting the contents of the "Guidelines for Technical Review of Surgical Microscope Registration issued by the State Food and Drug Administration": The structure of the existing surgical microscope is as foll...

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Problems solved by technology

[0005] 1. The distance from the surgical field of view to the exit pupil of the user's eyes is fixed. Regardless of the height of the user and the length of the hand, the user must adapt to this distance, especially for short users with short hands. Difficult to perform fine microsurgery

[0006] 2. The numerical aperture is determined by the focal length of the objective lens and the effective clear aperture. In order to see more clearly during surgery, it is necessary to increase the illumination; especially for ophthalmic surgical microscopes, if the illumination is increased without restraint in order to see clearly, it is easy to cause light radiation Damage to the fundus retina

[0008] 4. The direction of the lighting source is single, and the cornea, crystal and other media are mostly curved surfaces with high reflection, so that reflection interference often occurs during the operation

[0009] 5. Vitrectomy surgery is a main function, and vitrectomy is an inverted image. In order to solve the inverted image problem, it is necessary to install a vitrectomy inverted mirror at the front end of the large objective lens to make it return to the normal image, so that the plane from the surgical field of view to the The distance between the user's binocular exit pupils is getting longer and longer, and it is more difficult for short users to grasp

[0011] 7. The exit pupil of the eyepiece will make the user's eyes tired. The larger the magnification of the eyepiece, the easier it is to get tired

[0013] 9. Install relevant accessories for image acquisition through the beam splitter, but most of them are stereo two-way optics that separate one side and one way to collect. The effect of the collected images is regarded as "opening one eye and closing one eye", as a surgical video record and remote Medical images for teaching and communication, not yet satisfactory

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